From 1759b2257aab7b811c986e7942feab1bac560c9c Mon Sep 17 00:00:00 2001 From: OLEGSHA Date: Fri, 26 Mar 2021 01:37:31 +0300 Subject: [PATCH] Initial commit; version 0.1 --- .gitignore | 2 + CMakeLists.txt | 31 + glad/include/KHR/khrplatform.h | 290 ++ glad/include/glad/gl.h | 2842 ++++++++++++ glad/src/gl.c | 1345 ++++++ main.cpp | 783 ++++ stb/include/stb/stb_image.h | 7762 ++++++++++++++++++++++++++++++++ stb/src/stb_image.c | 4 + 8 files changed, 13059 insertions(+) create mode 100644 .gitignore create mode 100644 CMakeLists.txt create mode 100644 glad/include/KHR/khrplatform.h create mode 100644 glad/include/glad/gl.h create mode 100644 glad/src/gl.c create mode 100644 main.cpp create mode 100644 stb/include/stb/stb_image.h create mode 100644 stb/src/stb_image.c diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..de1e0fe --- /dev/null +++ b/.gitignore @@ -0,0 +1,2 @@ +*.kdev4 +build/ diff --git a/CMakeLists.txt b/CMakeLists.txt new file mode 100644 index 0000000..e15789b --- /dev/null +++ b/CMakeLists.txt @@ -0,0 +1,31 @@ +cmake_minimum_required(VERSION 3.0) +cmake_policy(SET CMP0072 NEW) + +project(progressiatexturepreviewer) + +add_executable(progressiatexturepreviewer + main.cpp + + glad/src/gl.c + stb/src/stb_image.c +) + +install(TARGETS progressiatexturepreviewer RUNTIME DESTINATION bin) + +# Link with GLFW3 +find_package(glfw3 3.2 REQUIRED) +target_link_libraries(progressiatexturepreviewer glfw) + +# Link with OpenGL +find_package(OpenGL REQUIRED) +target_link_libraries(progressiatexturepreviewer OpenGL::GL) + +# Link with GLM +find_package(glm REQUIRED) +target_link_libraries(progressiatexturepreviewer glm) + +# Use GLAD +target_include_directories(progressiatexturepreviewer PRIVATE glad/include) + +# Use STB Image +target_include_directories(progressiatexturepreviewer PRIVATE stb/include) diff --git a/glad/include/KHR/khrplatform.h b/glad/include/KHR/khrplatform.h new file mode 100644 index 0000000..dd22d92 --- /dev/null +++ b/glad/include/KHR/khrplatform.h @@ -0,0 +1,290 @@ +#ifndef __khrplatform_h_ +#define __khrplatform_h_ + +/* +** Copyright (c) 2008-2018 The Khronos Group Inc. +** +** Permission is hereby granted, free of charge, to any person obtaining a +** copy of this software and/or associated documentation files (the +** "Materials"), to deal in the Materials without restriction, including +** without limitation the rights to use, copy, modify, merge, publish, +** distribute, sublicense, and/or sell copies of the Materials, and to +** permit persons to whom the Materials are furnished to do so, subject to +** the following conditions: +** +** The above copyright notice and this permission notice shall be included +** in all copies or substantial portions of the Materials. +** +** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, +** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE +** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. +*/ + +/* Khronos platform-specific types and definitions. + * + * The master copy of khrplatform.h is maintained in the Khronos EGL + * Registry repository at https://github.com/KhronosGroup/EGL-Registry + * The last semantic modification to khrplatform.h was at commit ID: + * 67a3e0864c2d75ea5287b9f3d2eb74a745936692 + * + * Adopters may modify this file to suit their platform. Adopters are + * encouraged to submit platform specific modifications to the Khronos + * group so that they can be included in future versions of this file. + * Please submit changes by filing pull requests or issues on + * the EGL Registry repository linked above. + * + * + * See the Implementer's Guidelines for information about where this file + * should be located on your system and for more details of its use: + * http://www.khronos.org/registry/implementers_guide.pdf + * + * This file should be included as + * #include + * by Khronos client API header files that use its types and defines. + * + * The types in khrplatform.h should only be used to define API-specific types. + * + * Types defined in khrplatform.h: + * khronos_int8_t signed 8 bit + * khronos_uint8_t unsigned 8 bit + * khronos_int16_t signed 16 bit + * khronos_uint16_t unsigned 16 bit + * khronos_int32_t signed 32 bit + * khronos_uint32_t unsigned 32 bit + * khronos_int64_t signed 64 bit + * khronos_uint64_t unsigned 64 bit + * khronos_intptr_t signed same number of bits as a pointer + * khronos_uintptr_t unsigned same number of bits as a pointer + * khronos_ssize_t signed size + * khronos_usize_t unsigned size + * khronos_float_t signed 32 bit floating point + * khronos_time_ns_t unsigned 64 bit time in nanoseconds + * khronos_utime_nanoseconds_t unsigned time interval or absolute time in + * nanoseconds + * khronos_stime_nanoseconds_t signed time interval in nanoseconds + * khronos_boolean_enum_t enumerated boolean type. This should + * only be used as a base type when a client API's boolean type is + * an enum. Client APIs which use an integer or other type for + * booleans cannot use this as the base type for their boolean. + * + * Tokens defined in khrplatform.h: + * + * KHRONOS_FALSE, KHRONOS_TRUE Enumerated boolean false/true values. + * + * KHRONOS_SUPPORT_INT64 is 1 if 64 bit integers are supported; otherwise 0. + * KHRONOS_SUPPORT_FLOAT is 1 if floats are supported; otherwise 0. + * + * Calling convention macros defined in this file: + * KHRONOS_APICALL + * KHRONOS_APIENTRY + * KHRONOS_APIATTRIBUTES + * + * These may be used in function prototypes as: + * + * KHRONOS_APICALL void KHRONOS_APIENTRY funcname( + * int arg1, + * int arg2) KHRONOS_APIATTRIBUTES; + */ + +#if defined(__SCITECH_SNAP__) && !defined(KHRONOS_STATIC) +# define KHRONOS_STATIC 1 +#endif + +/*------------------------------------------------------------------------- + * Definition of KHRONOS_APICALL + *------------------------------------------------------------------------- + * This precedes the return type of the function in the function prototype. + */ +#if defined(KHRONOS_STATIC) + /* If the preprocessor constant KHRONOS_STATIC is defined, make the + * header compatible with static linking. */ +# define KHRONOS_APICALL +#elif defined(_WIN32) +# define KHRONOS_APICALL __declspec(dllimport) +#elif defined (__SYMBIAN32__) +# define KHRONOS_APICALL IMPORT_C +#elif defined(__ANDROID__) +# define KHRONOS_APICALL __attribute__((visibility("default"))) +#else +# define KHRONOS_APICALL +#endif + +/*------------------------------------------------------------------------- + * Definition of KHRONOS_APIENTRY + *------------------------------------------------------------------------- + * This follows the return type of the function and precedes the function + * name in the function prototype. + */ +#if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(__SCITECH_SNAP__) + /* Win32 but not WinCE */ +# define KHRONOS_APIENTRY __stdcall +#else +# define KHRONOS_APIENTRY +#endif + +/*------------------------------------------------------------------------- + * Definition of KHRONOS_APIATTRIBUTES + *------------------------------------------------------------------------- + * This follows the closing parenthesis of the function prototype arguments. + */ +#if defined (__ARMCC_2__) +#define KHRONOS_APIATTRIBUTES __softfp +#else +#define KHRONOS_APIATTRIBUTES +#endif + +/*------------------------------------------------------------------------- + * basic type definitions + *-----------------------------------------------------------------------*/ +#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__SCO__) || defined(__USLC__) + + +/* + * Using + */ +#include +typedef int32_t khronos_int32_t; +typedef uint32_t khronos_uint32_t; +typedef int64_t khronos_int64_t; +typedef uint64_t khronos_uint64_t; +#define KHRONOS_SUPPORT_INT64 1 +#define KHRONOS_SUPPORT_FLOAT 1 + +#elif defined(__VMS ) || defined(__sgi) + +/* + * Using + */ +#include +typedef int32_t khronos_int32_t; +typedef uint32_t khronos_uint32_t; +typedef int64_t khronos_int64_t; +typedef uint64_t khronos_uint64_t; +#define KHRONOS_SUPPORT_INT64 1 +#define KHRONOS_SUPPORT_FLOAT 1 + +#elif defined(_WIN32) && !defined(__SCITECH_SNAP__) + +/* + * Win32 + */ +typedef __int32 khronos_int32_t; +typedef unsigned __int32 khronos_uint32_t; +typedef __int64 khronos_int64_t; +typedef unsigned __int64 khronos_uint64_t; +#define KHRONOS_SUPPORT_INT64 1 +#define KHRONOS_SUPPORT_FLOAT 1 + +#elif defined(__sun__) || defined(__digital__) + +/* + * Sun or Digital + */ +typedef int khronos_int32_t; +typedef unsigned int khronos_uint32_t; +#if defined(__arch64__) || defined(_LP64) +typedef long int khronos_int64_t; +typedef unsigned long int khronos_uint64_t; +#else +typedef long long int khronos_int64_t; +typedef unsigned long long int khronos_uint64_t; +#endif /* __arch64__ */ +#define KHRONOS_SUPPORT_INT64 1 +#define KHRONOS_SUPPORT_FLOAT 1 + +#elif 0 + +/* + * Hypothetical platform with no float or int64 support + */ +typedef int khronos_int32_t; +typedef unsigned int khronos_uint32_t; +#define KHRONOS_SUPPORT_INT64 0 +#define KHRONOS_SUPPORT_FLOAT 0 + +#else + +/* + * Generic fallback + */ +#include +typedef int32_t khronos_int32_t; +typedef uint32_t khronos_uint32_t; +typedef int64_t khronos_int64_t; +typedef uint64_t khronos_uint64_t; +#define KHRONOS_SUPPORT_INT64 1 +#define KHRONOS_SUPPORT_FLOAT 1 + +#endif + + +/* + * Types that are (so far) the same on all platforms + */ +typedef signed char khronos_int8_t; +typedef unsigned char khronos_uint8_t; +typedef signed short int khronos_int16_t; +typedef unsigned short int khronos_uint16_t; + +/* + * Types that differ between LLP64 and LP64 architectures - in LLP64, + * pointers are 64 bits, but 'long' is still 32 bits. Win64 appears + * to be the only LLP64 architecture in current use. + */ +#ifdef _WIN64 +typedef signed long long int khronos_intptr_t; +typedef unsigned long long int khronos_uintptr_t; +typedef signed long long int khronos_ssize_t; +typedef unsigned long long int khronos_usize_t; +#else +typedef signed long int khronos_intptr_t; +typedef unsigned long int khronos_uintptr_t; +typedef signed long int khronos_ssize_t; +typedef unsigned long int khronos_usize_t; +#endif + +#if KHRONOS_SUPPORT_FLOAT +/* + * Float type + */ +typedef float khronos_float_t; +#endif + +#if KHRONOS_SUPPORT_INT64 +/* Time types + * + * These types can be used to represent a time interval in nanoseconds or + * an absolute Unadjusted System Time. Unadjusted System Time is the number + * of nanoseconds since some arbitrary system event (e.g. since the last + * time the system booted). The Unadjusted System Time is an unsigned + * 64 bit value that wraps back to 0 every 584 years. Time intervals + * may be either signed or unsigned. + */ +typedef khronos_uint64_t khronos_utime_nanoseconds_t; +typedef khronos_int64_t khronos_stime_nanoseconds_t; +#endif + +/* + * Dummy value used to pad enum types to 32 bits. + */ +#ifndef KHRONOS_MAX_ENUM +#define KHRONOS_MAX_ENUM 0x7FFFFFFF +#endif + +/* + * Enumerated boolean type + * + * Values other than zero should be considered to be true. Therefore + * comparisons should not be made against KHRONOS_TRUE. + */ +typedef enum { + KHRONOS_FALSE = 0, + KHRONOS_TRUE = 1, + KHRONOS_BOOLEAN_ENUM_FORCE_SIZE = KHRONOS_MAX_ENUM +} khronos_boolean_enum_t; + +#endif /* __khrplatform_h_ */ diff --git a/glad/include/glad/gl.h b/glad/include/glad/gl.h new file mode 100644 index 0000000..687f5b8 --- /dev/null +++ b/glad/include/glad/gl.h @@ -0,0 +1,2842 @@ +/** + * Loader generated by glad 2.0.0-beta on Tue Mar 16 19:59:52 2021 + * + * Generator: C/C++ + * Specification: gl + * Extensions: 0 + * + * APIs: + * - gl:compatibility=2.1 + * + * Options: + * - MX_GLOBAL = False + * - ON_DEMAND = False + * - LOADER = False + * - ALIAS = False + * - HEADER_ONLY = False + * - DEBUG = False + * - MX = False + * + * Commandline: + * --api='gl:compatibility=2.1' --extensions='' c + * + * Online: + * http://glad.sh/#api=gl%3Acompatibility%3D2.1&extensions=&generator=c&options= + * + */ + +#ifndef GLAD_GL_H_ +#define GLAD_GL_H_ + +#ifdef __clang__ +#pragma clang diagnostic push +#pragma clang diagnostic ignored "-Wreserved-id-macro" +#endif +#ifdef __gl_h_ + #error OpenGL (gl.h) header already included (API: gl), remove previous include! +#endif +#define __gl_h_ 1 +#ifdef __gl3_h_ + #error OpenGL (gl3.h) header already included (API: gl), remove previous include! +#endif +#define __gl3_h_ 1 +#ifdef __glext_h_ + #error OpenGL (glext.h) header already included (API: gl), remove previous include! +#endif +#define __glext_h_ 1 +#ifdef __gl3ext_h_ + #error OpenGL (gl3ext.h) header already included (API: gl), remove previous include! +#endif +#define __gl3ext_h_ 1 +#ifdef __clang__ +#pragma clang diagnostic pop +#endif + +#define GLAD_GL + +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef GLAD_PLATFORM_H_ +#define GLAD_PLATFORM_H_ + +#ifndef GLAD_PLATFORM_WIN32 + #if defined(_WIN32) || defined(__WIN32__) || defined(WIN32) || defined(__MINGW32__) + #define GLAD_PLATFORM_WIN32 1 + #else + #define GLAD_PLATFORM_WIN32 0 + #endif +#endif + +#ifndef GLAD_PLATFORM_APPLE + #ifdef __APPLE__ + #define GLAD_PLATFORM_APPLE 1 + #else + #define GLAD_PLATFORM_APPLE 0 + #endif +#endif + +#ifndef GLAD_PLATFORM_EMSCRIPTEN + #ifdef __EMSCRIPTEN__ + #define GLAD_PLATFORM_EMSCRIPTEN 1 + #else + #define GLAD_PLATFORM_EMSCRIPTEN 0 + #endif +#endif + +#ifndef GLAD_PLATFORM_UWP + #if defined(_MSC_VER) && !defined(GLAD_INTERNAL_HAVE_WINAPIFAMILY) + #ifdef __has_include + #if __has_include() + #define GLAD_INTERNAL_HAVE_WINAPIFAMILY 1 + #endif + #elif _MSC_VER >= 1700 && !_USING_V110_SDK71_ + #define GLAD_INTERNAL_HAVE_WINAPIFAMILY 1 + #endif + #endif + + #ifdef GLAD_INTERNAL_HAVE_WINAPIFAMILY + #include + #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) && WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP) + #define GLAD_PLATFORM_UWP 1 + #endif + #endif + + #ifndef GLAD_PLATFORM_UWP + #define GLAD_PLATFORM_UWP 0 + #endif +#endif + +#ifdef __GNUC__ + #define GLAD_GNUC_EXTENSION __extension__ +#else + #define GLAD_GNUC_EXTENSION +#endif + +#ifndef GLAD_API_CALL + #if defined(GLAD_API_CALL_EXPORT) + #if GLAD_PLATFORM_WIN32 || defined(__CYGWIN__) + #if defined(GLAD_API_CALL_EXPORT_BUILD) + #if defined(__GNUC__) + #define GLAD_API_CALL __attribute__ ((dllexport)) extern + #else + #define GLAD_API_CALL __declspec(dllexport) extern + #endif + #else + #if defined(__GNUC__) + #define GLAD_API_CALL __attribute__ ((dllimport)) extern + #else + #define GLAD_API_CALL __declspec(dllimport) extern + #endif + #endif + #elif defined(__GNUC__) && defined(GLAD_API_CALL_EXPORT_BUILD) + #define GLAD_API_CALL __attribute__ ((visibility ("default"))) extern + #else + #define GLAD_API_CALL extern + #endif + #else + #define GLAD_API_CALL extern + #endif +#endif + +#ifdef APIENTRY + #define GLAD_API_PTR APIENTRY +#elif GLAD_PLATFORM_WIN32 + #define GLAD_API_PTR __stdcall +#else + #define GLAD_API_PTR +#endif + +#ifndef GLAPI +#define GLAPI GLAD_API_CALL +#endif + +#ifndef GLAPIENTRY +#define GLAPIENTRY GLAD_API_PTR +#endif + +#define GLAD_MAKE_VERSION(major, minor) (major * 10000 + minor) +#define GLAD_VERSION_MAJOR(version) (version / 10000) +#define GLAD_VERSION_MINOR(version) (version % 10000) + +#define GLAD_GENERATOR_VERSION "2.0.0-beta" + +typedef void (*GLADapiproc)(void); + +typedef GLADapiproc (*GLADloadfunc)(const char *name); +typedef GLADapiproc (*GLADuserptrloadfunc)(void *userptr, const char *name); + +typedef void (*GLADprecallback)(const char *name, GLADapiproc apiproc, int len_args, ...); +typedef void (*GLADpostcallback)(void *ret, const char *name, GLADapiproc apiproc, int len_args, ...); + +#endif /* GLAD_PLATFORM_H_ */ + +#define GL_2D 0x0600 +#define GL_2_BYTES 0x1407 +#define GL_3D 0x0601 +#define GL_3D_COLOR 0x0602 +#define GL_3D_COLOR_TEXTURE 0x0603 +#define GL_3_BYTES 0x1408 +#define GL_4D_COLOR_TEXTURE 0x0604 +#define GL_4_BYTES 0x1409 +#define GL_ACCUM 0x0100 +#define GL_ACCUM_ALPHA_BITS 0x0D5B +#define GL_ACCUM_BLUE_BITS 0x0D5A +#define GL_ACCUM_BUFFER_BIT 0x00000200 +#define GL_ACCUM_CLEAR_VALUE 0x0B80 +#define GL_ACCUM_GREEN_BITS 0x0D59 +#define GL_ACCUM_RED_BITS 0x0D58 +#define GL_ACTIVE_ATTRIBUTES 0x8B89 +#define GL_ACTIVE_ATTRIBUTE_MAX_LENGTH 0x8B8A +#define GL_ACTIVE_TEXTURE 0x84E0 +#define GL_ACTIVE_UNIFORMS 0x8B86 +#define GL_ACTIVE_UNIFORM_MAX_LENGTH 0x8B87 +#define GL_ADD 0x0104 +#define GL_ADD_SIGNED 0x8574 +#define GL_ALIASED_LINE_WIDTH_RANGE 0x846E +#define GL_ALIASED_POINT_SIZE_RANGE 0x846D +#define GL_ALL_ATTRIB_BITS 0xFFFFFFFF +#define GL_ALPHA 0x1906 +#define GL_ALPHA12 0x803D +#define GL_ALPHA16 0x803E +#define GL_ALPHA4 0x803B +#define GL_ALPHA8 0x803C +#define GL_ALPHA_BIAS 0x0D1D +#define GL_ALPHA_BITS 0x0D55 +#define GL_ALPHA_SCALE 0x0D1C +#define GL_ALPHA_TEST 0x0BC0 +#define GL_ALPHA_TEST_FUNC 0x0BC1 +#define GL_ALPHA_TEST_REF 0x0BC2 +#define GL_ALWAYS 0x0207 +#define GL_AMBIENT 0x1200 +#define GL_AMBIENT_AND_DIFFUSE 0x1602 +#define GL_AND 0x1501 +#define GL_AND_INVERTED 0x1504 +#define GL_AND_REVERSE 0x1502 +#define GL_ARRAY_BUFFER 0x8892 +#define GL_ARRAY_BUFFER_BINDING 0x8894 +#define GL_ATTACHED_SHADERS 0x8B85 +#define GL_ATTRIB_STACK_DEPTH 0x0BB0 +#define GL_AUTO_NORMAL 0x0D80 +#define GL_AUX0 0x0409 +#define GL_AUX1 0x040A +#define GL_AUX2 0x040B +#define GL_AUX3 0x040C +#define GL_AUX_BUFFERS 0x0C00 +#define GL_BACK 0x0405 +#define GL_BACK_LEFT 0x0402 +#define GL_BACK_RIGHT 0x0403 +#define GL_BGR 0x80E0 +#define GL_BGRA 0x80E1 +#define GL_BITMAP 0x1A00 +#define GL_BITMAP_TOKEN 0x0704 +#define GL_BLEND 0x0BE2 +#define GL_BLEND_COLOR 0x8005 +#define GL_BLEND_DST 0x0BE0 +#define GL_BLEND_DST_ALPHA 0x80CA +#define GL_BLEND_DST_RGB 0x80C8 +#define GL_BLEND_EQUATION 0x8009 +#define GL_BLEND_EQUATION_ALPHA 0x883D +#define GL_BLEND_EQUATION_RGB 0x8009 +#define GL_BLEND_SRC 0x0BE1 +#define GL_BLEND_SRC_ALPHA 0x80CB +#define GL_BLEND_SRC_RGB 0x80C9 +#define GL_BLUE 0x1905 +#define GL_BLUE_BIAS 0x0D1B +#define GL_BLUE_BITS 0x0D54 +#define GL_BLUE_SCALE 0x0D1A +#define GL_BOOL 0x8B56 +#define GL_BOOL_VEC2 0x8B57 +#define GL_BOOL_VEC3 0x8B58 +#define GL_BOOL_VEC4 0x8B59 +#define GL_BUFFER_ACCESS 0x88BB +#define GL_BUFFER_MAPPED 0x88BC +#define GL_BUFFER_MAP_POINTER 0x88BD +#define GL_BUFFER_SIZE 0x8764 +#define GL_BUFFER_USAGE 0x8765 +#define GL_BYTE 0x1400 +#define GL_C3F_V3F 0x2A24 +#define GL_C4F_N3F_V3F 0x2A26 +#define GL_C4UB_V2F 0x2A22 +#define GL_C4UB_V3F 0x2A23 +#define GL_CCW 0x0901 +#define GL_CLAMP 0x2900 +#define GL_CLAMP_TO_BORDER 0x812D +#define GL_CLAMP_TO_EDGE 0x812F +#define GL_CLEAR 0x1500 +#define GL_CLIENT_ACTIVE_TEXTURE 0x84E1 +#define GL_CLIENT_ALL_ATTRIB_BITS 0xFFFFFFFF +#define GL_CLIENT_ATTRIB_STACK_DEPTH 0x0BB1 +#define GL_CLIENT_PIXEL_STORE_BIT 0x00000001 +#define GL_CLIENT_VERTEX_ARRAY_BIT 0x00000002 +#define GL_CLIP_PLANE0 0x3000 +#define GL_CLIP_PLANE1 0x3001 +#define GL_CLIP_PLANE2 0x3002 +#define GL_CLIP_PLANE3 0x3003 +#define GL_CLIP_PLANE4 0x3004 +#define GL_CLIP_PLANE5 0x3005 +#define GL_COEFF 0x0A00 +#define GL_COLOR 0x1800 +#define GL_COLOR_ARRAY 0x8076 +#define GL_COLOR_ARRAY_BUFFER_BINDING 0x8898 +#define GL_COLOR_ARRAY_POINTER 0x8090 +#define GL_COLOR_ARRAY_SIZE 0x8081 +#define GL_COLOR_ARRAY_STRIDE 0x8083 +#define GL_COLOR_ARRAY_TYPE 0x8082 +#define GL_COLOR_BUFFER_BIT 0x00004000 +#define GL_COLOR_CLEAR_VALUE 0x0C22 +#define GL_COLOR_INDEX 0x1900 +#define GL_COLOR_INDEXES 0x1603 +#define GL_COLOR_LOGIC_OP 0x0BF2 +#define GL_COLOR_MATERIAL 0x0B57 +#define GL_COLOR_MATERIAL_FACE 0x0B55 +#define GL_COLOR_MATERIAL_PARAMETER 0x0B56 +#define GL_COLOR_SUM 0x8458 +#define GL_COLOR_WRITEMASK 0x0C23 +#define GL_COMBINE 0x8570 +#define GL_COMBINE_ALPHA 0x8572 +#define GL_COMBINE_RGB 0x8571 +#define GL_COMPARE_R_TO_TEXTURE 0x884E +#define GL_COMPILE 0x1300 +#define GL_COMPILE_AND_EXECUTE 0x1301 +#define GL_COMPILE_STATUS 0x8B81 +#define GL_COMPRESSED_ALPHA 0x84E9 +#define GL_COMPRESSED_INTENSITY 0x84EC +#define GL_COMPRESSED_LUMINANCE 0x84EA +#define GL_COMPRESSED_LUMINANCE_ALPHA 0x84EB +#define GL_COMPRESSED_RGB 0x84ED +#define GL_COMPRESSED_RGBA 0x84EE +#define GL_COMPRESSED_SLUMINANCE 0x8C4A +#define GL_COMPRESSED_SLUMINANCE_ALPHA 0x8C4B +#define GL_COMPRESSED_SRGB 0x8C48 +#define GL_COMPRESSED_SRGB_ALPHA 0x8C49 +#define GL_COMPRESSED_TEXTURE_FORMATS 0x86A3 +#define GL_CONSTANT 0x8576 +#define GL_CONSTANT_ALPHA 0x8003 +#define GL_CONSTANT_ATTENUATION 0x1207 +#define GL_CONSTANT_COLOR 0x8001 +#define GL_COORD_REPLACE 0x8862 +#define GL_COPY 0x1503 +#define GL_COPY_INVERTED 0x150C +#define GL_COPY_PIXEL_TOKEN 0x0706 +#define GL_CULL_FACE 0x0B44 +#define GL_CULL_FACE_MODE 0x0B45 +#define GL_CURRENT_BIT 0x00000001 +#define GL_CURRENT_COLOR 0x0B00 +#define GL_CURRENT_FOG_COORD 0x8453 +#define GL_CURRENT_FOG_COORDINATE 0x8453 +#define GL_CURRENT_INDEX 0x0B01 +#define GL_CURRENT_NORMAL 0x0B02 +#define GL_CURRENT_PROGRAM 0x8B8D +#define GL_CURRENT_QUERY 0x8865 +#define GL_CURRENT_RASTER_COLOR 0x0B04 +#define GL_CURRENT_RASTER_DISTANCE 0x0B09 +#define GL_CURRENT_RASTER_INDEX 0x0B05 +#define GL_CURRENT_RASTER_POSITION 0x0B07 +#define GL_CURRENT_RASTER_POSITION_VALID 0x0B08 +#define GL_CURRENT_RASTER_SECONDARY_COLOR 0x845F +#define GL_CURRENT_RASTER_TEXTURE_COORDS 0x0B06 +#define GL_CURRENT_SECONDARY_COLOR 0x8459 +#define GL_CURRENT_TEXTURE_COORDS 0x0B03 +#define GL_CURRENT_VERTEX_ATTRIB 0x8626 +#define GL_CW 0x0900 +#define GL_DECAL 0x2101 +#define GL_DECR 0x1E03 +#define GL_DECR_WRAP 0x8508 +#define GL_DELETE_STATUS 0x8B80 +#define GL_DEPTH 0x1801 +#define GL_DEPTH_BIAS 0x0D1F +#define GL_DEPTH_BITS 0x0D56 +#define GL_DEPTH_BUFFER_BIT 0x00000100 +#define GL_DEPTH_CLEAR_VALUE 0x0B73 +#define GL_DEPTH_COMPONENT 0x1902 +#define GL_DEPTH_COMPONENT16 0x81A5 +#define GL_DEPTH_COMPONENT24 0x81A6 +#define GL_DEPTH_COMPONENT32 0x81A7 +#define GL_DEPTH_FUNC 0x0B74 +#define GL_DEPTH_RANGE 0x0B70 +#define GL_DEPTH_SCALE 0x0D1E +#define GL_DEPTH_TEST 0x0B71 +#define GL_DEPTH_TEXTURE_MODE 0x884B +#define GL_DEPTH_WRITEMASK 0x0B72 +#define GL_DIFFUSE 0x1201 +#define GL_DITHER 0x0BD0 +#define GL_DOMAIN 0x0A02 +#define GL_DONT_CARE 0x1100 +#define GL_DOT3_RGB 0x86AE +#define GL_DOT3_RGBA 0x86AF +#define GL_DOUBLE 0x140A +#define GL_DOUBLEBUFFER 0x0C32 +#define GL_DRAW_BUFFER 0x0C01 +#define GL_DRAW_BUFFER0 0x8825 +#define GL_DRAW_BUFFER1 0x8826 +#define GL_DRAW_BUFFER10 0x882F +#define GL_DRAW_BUFFER11 0x8830 +#define GL_DRAW_BUFFER12 0x8831 +#define GL_DRAW_BUFFER13 0x8832 +#define GL_DRAW_BUFFER14 0x8833 +#define GL_DRAW_BUFFER15 0x8834 +#define GL_DRAW_BUFFER2 0x8827 +#define GL_DRAW_BUFFER3 0x8828 +#define GL_DRAW_BUFFER4 0x8829 +#define GL_DRAW_BUFFER5 0x882A +#define GL_DRAW_BUFFER6 0x882B +#define GL_DRAW_BUFFER7 0x882C +#define GL_DRAW_BUFFER8 0x882D +#define GL_DRAW_BUFFER9 0x882E +#define GL_DRAW_PIXEL_TOKEN 0x0705 +#define GL_DST_ALPHA 0x0304 +#define GL_DST_COLOR 0x0306 +#define GL_DYNAMIC_COPY 0x88EA +#define GL_DYNAMIC_DRAW 0x88E8 +#define GL_DYNAMIC_READ 0x88E9 +#define GL_EDGE_FLAG 0x0B43 +#define GL_EDGE_FLAG_ARRAY 0x8079 +#define GL_EDGE_FLAG_ARRAY_BUFFER_BINDING 0x889B +#define GL_EDGE_FLAG_ARRAY_POINTER 0x8093 +#define GL_EDGE_FLAG_ARRAY_STRIDE 0x808C +#define GL_ELEMENT_ARRAY_BUFFER 0x8893 +#define GL_ELEMENT_ARRAY_BUFFER_BINDING 0x8895 +#define GL_EMISSION 0x1600 +#define GL_ENABLE_BIT 0x00002000 +#define GL_EQUAL 0x0202 +#define GL_EQUIV 0x1509 +#define GL_EVAL_BIT 0x00010000 +#define GL_EXP 0x0800 +#define GL_EXP2 0x0801 +#define GL_EXTENSIONS 0x1F03 +#define GL_EYE_LINEAR 0x2400 +#define GL_EYE_PLANE 0x2502 +#define GL_FALSE 0 +#define GL_FASTEST 0x1101 +#define GL_FEEDBACK 0x1C01 +#define GL_FEEDBACK_BUFFER_POINTER 0x0DF0 +#define GL_FEEDBACK_BUFFER_SIZE 0x0DF1 +#define GL_FEEDBACK_BUFFER_TYPE 0x0DF2 +#define GL_FILL 0x1B02 +#define GL_FLAT 0x1D00 +#define GL_FLOAT 0x1406 +#define GL_FLOAT_MAT2 0x8B5A +#define GL_FLOAT_MAT2x3 0x8B65 +#define GL_FLOAT_MAT2x4 0x8B66 +#define GL_FLOAT_MAT3 0x8B5B +#define GL_FLOAT_MAT3x2 0x8B67 +#define GL_FLOAT_MAT3x4 0x8B68 +#define GL_FLOAT_MAT4 0x8B5C +#define GL_FLOAT_MAT4x2 0x8B69 +#define GL_FLOAT_MAT4x3 0x8B6A +#define GL_FLOAT_VEC2 0x8B50 +#define GL_FLOAT_VEC3 0x8B51 +#define GL_FLOAT_VEC4 0x8B52 +#define GL_FOG 0x0B60 +#define GL_FOG_BIT 0x00000080 +#define GL_FOG_COLOR 0x0B66 +#define GL_FOG_COORD 0x8451 +#define GL_FOG_COORDINATE 0x8451 +#define GL_FOG_COORDINATE_ARRAY 0x8457 +#define GL_FOG_COORDINATE_ARRAY_BUFFER_BINDING 0x889D +#define GL_FOG_COORDINATE_ARRAY_POINTER 0x8456 +#define GL_FOG_COORDINATE_ARRAY_STRIDE 0x8455 +#define GL_FOG_COORDINATE_ARRAY_TYPE 0x8454 +#define GL_FOG_COORDINATE_SOURCE 0x8450 +#define GL_FOG_COORD_ARRAY 0x8457 +#define GL_FOG_COORD_ARRAY_BUFFER_BINDING 0x889D +#define GL_FOG_COORD_ARRAY_POINTER 0x8456 +#define GL_FOG_COORD_ARRAY_STRIDE 0x8455 +#define GL_FOG_COORD_ARRAY_TYPE 0x8454 +#define GL_FOG_COORD_SRC 0x8450 +#define GL_FOG_DENSITY 0x0B62 +#define GL_FOG_END 0x0B64 +#define GL_FOG_HINT 0x0C54 +#define GL_FOG_INDEX 0x0B61 +#define GL_FOG_MODE 0x0B65 +#define GL_FOG_START 0x0B63 +#define GL_FRAGMENT_DEPTH 0x8452 +#define GL_FRAGMENT_SHADER 0x8B30 +#define GL_FRAGMENT_SHADER_DERIVATIVE_HINT 0x8B8B +#define GL_FRONT 0x0404 +#define GL_FRONT_AND_BACK 0x0408 +#define GL_FRONT_FACE 0x0B46 +#define GL_FRONT_LEFT 0x0400 +#define GL_FRONT_RIGHT 0x0401 +#define GL_FUNC_ADD 0x8006 +#define GL_FUNC_REVERSE_SUBTRACT 0x800B +#define GL_FUNC_SUBTRACT 0x800A +#define GL_GENERATE_MIPMAP 0x8191 +#define GL_GENERATE_MIPMAP_HINT 0x8192 +#define GL_GEQUAL 0x0206 +#define GL_GREATER 0x0204 +#define GL_GREEN 0x1904 +#define GL_GREEN_BIAS 0x0D19 +#define GL_GREEN_BITS 0x0D53 +#define GL_GREEN_SCALE 0x0D18 +#define GL_HINT_BIT 0x00008000 +#define GL_INCR 0x1E02 +#define GL_INCR_WRAP 0x8507 +#define GL_INDEX_ARRAY 0x8077 +#define GL_INDEX_ARRAY_BUFFER_BINDING 0x8899 +#define GL_INDEX_ARRAY_POINTER 0x8091 +#define GL_INDEX_ARRAY_STRIDE 0x8086 +#define GL_INDEX_ARRAY_TYPE 0x8085 +#define GL_INDEX_BITS 0x0D51 +#define GL_INDEX_CLEAR_VALUE 0x0C20 +#define GL_INDEX_LOGIC_OP 0x0BF1 +#define GL_INDEX_MODE 0x0C30 +#define GL_INDEX_OFFSET 0x0D13 +#define GL_INDEX_SHIFT 0x0D12 +#define GL_INDEX_WRITEMASK 0x0C21 +#define GL_INFO_LOG_LENGTH 0x8B84 +#define GL_INT 0x1404 +#define GL_INTENSITY 0x8049 +#define GL_INTENSITY12 0x804C +#define GL_INTENSITY16 0x804D +#define GL_INTENSITY4 0x804A +#define GL_INTENSITY8 0x804B +#define GL_INTERPOLATE 0x8575 +#define GL_INT_VEC2 0x8B53 +#define GL_INT_VEC3 0x8B54 +#define GL_INT_VEC4 0x8B55 +#define GL_INVALID_ENUM 0x0500 +#define GL_INVALID_OPERATION 0x0502 +#define GL_INVALID_VALUE 0x0501 +#define GL_INVERT 0x150A +#define GL_KEEP 0x1E00 +#define GL_LEFT 0x0406 +#define GL_LEQUAL 0x0203 +#define GL_LESS 0x0201 +#define GL_LIGHT0 0x4000 +#define GL_LIGHT1 0x4001 +#define GL_LIGHT2 0x4002 +#define GL_LIGHT3 0x4003 +#define GL_LIGHT4 0x4004 +#define GL_LIGHT5 0x4005 +#define GL_LIGHT6 0x4006 +#define GL_LIGHT7 0x4007 +#define GL_LIGHTING 0x0B50 +#define GL_LIGHTING_BIT 0x00000040 +#define GL_LIGHT_MODEL_AMBIENT 0x0B53 +#define GL_LIGHT_MODEL_COLOR_CONTROL 0x81F8 +#define GL_LIGHT_MODEL_LOCAL_VIEWER 0x0B51 +#define GL_LIGHT_MODEL_TWO_SIDE 0x0B52 +#define GL_LINE 0x1B01 +#define GL_LINEAR 0x2601 +#define GL_LINEAR_ATTENUATION 0x1208 +#define GL_LINEAR_MIPMAP_LINEAR 0x2703 +#define GL_LINEAR_MIPMAP_NEAREST 0x2701 +#define GL_LINES 0x0001 +#define GL_LINE_BIT 0x00000004 +#define GL_LINE_LOOP 0x0002 +#define GL_LINE_RESET_TOKEN 0x0707 +#define GL_LINE_SMOOTH 0x0B20 +#define GL_LINE_SMOOTH_HINT 0x0C52 +#define GL_LINE_STIPPLE 0x0B24 +#define GL_LINE_STIPPLE_PATTERN 0x0B25 +#define GL_LINE_STIPPLE_REPEAT 0x0B26 +#define GL_LINE_STRIP 0x0003 +#define GL_LINE_TOKEN 0x0702 +#define GL_LINE_WIDTH 0x0B21 +#define GL_LINE_WIDTH_GRANULARITY 0x0B23 +#define GL_LINE_WIDTH_RANGE 0x0B22 +#define GL_LINK_STATUS 0x8B82 +#define GL_LIST_BASE 0x0B32 +#define GL_LIST_BIT 0x00020000 +#define GL_LIST_INDEX 0x0B33 +#define GL_LIST_MODE 0x0B30 +#define GL_LOAD 0x0101 +#define GL_LOGIC_OP 0x0BF1 +#define GL_LOGIC_OP_MODE 0x0BF0 +#define GL_LOWER_LEFT 0x8CA1 +#define GL_LUMINANCE 0x1909 +#define GL_LUMINANCE12 0x8041 +#define GL_LUMINANCE12_ALPHA12 0x8047 +#define GL_LUMINANCE12_ALPHA4 0x8046 +#define GL_LUMINANCE16 0x8042 +#define GL_LUMINANCE16_ALPHA16 0x8048 +#define GL_LUMINANCE4 0x803F +#define GL_LUMINANCE4_ALPHA4 0x8043 +#define GL_LUMINANCE6_ALPHA2 0x8044 +#define GL_LUMINANCE8 0x8040 +#define GL_LUMINANCE8_ALPHA8 0x8045 +#define GL_LUMINANCE_ALPHA 0x190A +#define GL_MAP1_COLOR_4 0x0D90 +#define GL_MAP1_GRID_DOMAIN 0x0DD0 +#define GL_MAP1_GRID_SEGMENTS 0x0DD1 +#define GL_MAP1_INDEX 0x0D91 +#define GL_MAP1_NORMAL 0x0D92 +#define GL_MAP1_TEXTURE_COORD_1 0x0D93 +#define GL_MAP1_TEXTURE_COORD_2 0x0D94 +#define GL_MAP1_TEXTURE_COORD_3 0x0D95 +#define GL_MAP1_TEXTURE_COORD_4 0x0D96 +#define GL_MAP1_VERTEX_3 0x0D97 +#define GL_MAP1_VERTEX_4 0x0D98 +#define GL_MAP2_COLOR_4 0x0DB0 +#define GL_MAP2_GRID_DOMAIN 0x0DD2 +#define GL_MAP2_GRID_SEGMENTS 0x0DD3 +#define GL_MAP2_INDEX 0x0DB1 +#define GL_MAP2_NORMAL 0x0DB2 +#define GL_MAP2_TEXTURE_COORD_1 0x0DB3 +#define GL_MAP2_TEXTURE_COORD_2 0x0DB4 +#define GL_MAP2_TEXTURE_COORD_3 0x0DB5 +#define GL_MAP2_TEXTURE_COORD_4 0x0DB6 +#define GL_MAP2_VERTEX_3 0x0DB7 +#define GL_MAP2_VERTEX_4 0x0DB8 +#define GL_MAP_COLOR 0x0D10 +#define GL_MAP_STENCIL 0x0D11 +#define GL_MATRIX_MODE 0x0BA0 +#define GL_MAX 0x8008 +#define GL_MAX_3D_TEXTURE_SIZE 0x8073 +#define GL_MAX_ATTRIB_STACK_DEPTH 0x0D35 +#define GL_MAX_CLIENT_ATTRIB_STACK_DEPTH 0x0D3B +#define GL_MAX_CLIP_PLANES 0x0D32 +#define GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS 0x8B4D +#define GL_MAX_CUBE_MAP_TEXTURE_SIZE 0x851C +#define GL_MAX_DRAW_BUFFERS 0x8824 +#define GL_MAX_ELEMENTS_INDICES 0x80E9 +#define GL_MAX_ELEMENTS_VERTICES 0x80E8 +#define GL_MAX_EVAL_ORDER 0x0D30 +#define GL_MAX_FRAGMENT_UNIFORM_COMPONENTS 0x8B49 +#define GL_MAX_LIGHTS 0x0D31 +#define GL_MAX_LIST_NESTING 0x0B31 +#define GL_MAX_MODELVIEW_STACK_DEPTH 0x0D36 +#define GL_MAX_NAME_STACK_DEPTH 0x0D37 +#define GL_MAX_PIXEL_MAP_TABLE 0x0D34 +#define GL_MAX_PROJECTION_STACK_DEPTH 0x0D38 +#define GL_MAX_TEXTURE_COORDS 0x8871 +#define GL_MAX_TEXTURE_IMAGE_UNITS 0x8872 +#define GL_MAX_TEXTURE_LOD_BIAS 0x84FD +#define GL_MAX_TEXTURE_SIZE 0x0D33 +#define GL_MAX_TEXTURE_STACK_DEPTH 0x0D39 +#define GL_MAX_TEXTURE_UNITS 0x84E2 +#define GL_MAX_VARYING_FLOATS 0x8B4B +#define GL_MAX_VERTEX_ATTRIBS 0x8869 +#define GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS 0x8B4C +#define GL_MAX_VERTEX_UNIFORM_COMPONENTS 0x8B4A +#define GL_MAX_VIEWPORT_DIMS 0x0D3A +#define GL_MIN 0x8007 +#define GL_MIRRORED_REPEAT 0x8370 +#define GL_MODELVIEW 0x1700 +#define GL_MODELVIEW_MATRIX 0x0BA6 +#define GL_MODELVIEW_STACK_DEPTH 0x0BA3 +#define GL_MODULATE 0x2100 +#define GL_MULT 0x0103 +#define GL_MULTISAMPLE 0x809D +#define GL_MULTISAMPLE_BIT 0x20000000 +#define GL_N3F_V3F 0x2A25 +#define GL_NAME_STACK_DEPTH 0x0D70 +#define GL_NAND 0x150E +#define GL_NEAREST 0x2600 +#define GL_NEAREST_MIPMAP_LINEAR 0x2702 +#define GL_NEAREST_MIPMAP_NEAREST 0x2700 +#define GL_NEVER 0x0200 +#define GL_NICEST 0x1102 +#define GL_NONE 0 +#define GL_NOOP 0x1505 +#define GL_NOR 0x1508 +#define GL_NORMALIZE 0x0BA1 +#define GL_NORMAL_ARRAY 0x8075 +#define GL_NORMAL_ARRAY_BUFFER_BINDING 0x8897 +#define GL_NORMAL_ARRAY_POINTER 0x808F +#define GL_NORMAL_ARRAY_STRIDE 0x807F +#define GL_NORMAL_ARRAY_TYPE 0x807E +#define GL_NORMAL_MAP 0x8511 +#define GL_NOTEQUAL 0x0205 +#define GL_NO_ERROR 0 +#define GL_NUM_COMPRESSED_TEXTURE_FORMATS 0x86A2 +#define GL_OBJECT_LINEAR 0x2401 +#define GL_OBJECT_PLANE 0x2501 +#define GL_ONE 1 +#define GL_ONE_MINUS_CONSTANT_ALPHA 0x8004 +#define GL_ONE_MINUS_CONSTANT_COLOR 0x8002 +#define GL_ONE_MINUS_DST_ALPHA 0x0305 +#define GL_ONE_MINUS_DST_COLOR 0x0307 +#define GL_ONE_MINUS_SRC_ALPHA 0x0303 +#define GL_ONE_MINUS_SRC_COLOR 0x0301 +#define GL_OPERAND0_ALPHA 0x8598 +#define GL_OPERAND0_RGB 0x8590 +#define GL_OPERAND1_ALPHA 0x8599 +#define GL_OPERAND1_RGB 0x8591 +#define GL_OPERAND2_ALPHA 0x859A +#define GL_OPERAND2_RGB 0x8592 +#define GL_OR 0x1507 +#define GL_ORDER 0x0A01 +#define GL_OR_INVERTED 0x150D +#define GL_OR_REVERSE 0x150B +#define GL_OUT_OF_MEMORY 0x0505 +#define GL_PACK_ALIGNMENT 0x0D05 +#define GL_PACK_IMAGE_HEIGHT 0x806C +#define GL_PACK_LSB_FIRST 0x0D01 +#define GL_PACK_ROW_LENGTH 0x0D02 +#define GL_PACK_SKIP_IMAGES 0x806B +#define GL_PACK_SKIP_PIXELS 0x0D04 +#define GL_PACK_SKIP_ROWS 0x0D03 +#define GL_PACK_SWAP_BYTES 0x0D00 +#define GL_PASS_THROUGH_TOKEN 0x0700 +#define GL_PERSPECTIVE_CORRECTION_HINT 0x0C50 +#define GL_PIXEL_MAP_A_TO_A 0x0C79 +#define GL_PIXEL_MAP_A_TO_A_SIZE 0x0CB9 +#define GL_PIXEL_MAP_B_TO_B 0x0C78 +#define GL_PIXEL_MAP_B_TO_B_SIZE 0x0CB8 +#define GL_PIXEL_MAP_G_TO_G 0x0C77 +#define GL_PIXEL_MAP_G_TO_G_SIZE 0x0CB7 +#define GL_PIXEL_MAP_I_TO_A 0x0C75 +#define GL_PIXEL_MAP_I_TO_A_SIZE 0x0CB5 +#define GL_PIXEL_MAP_I_TO_B 0x0C74 +#define GL_PIXEL_MAP_I_TO_B_SIZE 0x0CB4 +#define GL_PIXEL_MAP_I_TO_G 0x0C73 +#define GL_PIXEL_MAP_I_TO_G_SIZE 0x0CB3 +#define GL_PIXEL_MAP_I_TO_I 0x0C70 +#define GL_PIXEL_MAP_I_TO_I_SIZE 0x0CB0 +#define GL_PIXEL_MAP_I_TO_R 0x0C72 +#define GL_PIXEL_MAP_I_TO_R_SIZE 0x0CB2 +#define GL_PIXEL_MAP_R_TO_R 0x0C76 +#define GL_PIXEL_MAP_R_TO_R_SIZE 0x0CB6 +#define GL_PIXEL_MAP_S_TO_S 0x0C71 +#define GL_PIXEL_MAP_S_TO_S_SIZE 0x0CB1 +#define GL_PIXEL_MODE_BIT 0x00000020 +#define GL_PIXEL_PACK_BUFFER 0x88EB +#define GL_PIXEL_PACK_BUFFER_BINDING 0x88ED +#define GL_PIXEL_UNPACK_BUFFER 0x88EC +#define GL_PIXEL_UNPACK_BUFFER_BINDING 0x88EF +#define GL_POINT 0x1B00 +#define GL_POINTS 0x0000 +#define GL_POINT_BIT 0x00000002 +#define GL_POINT_DISTANCE_ATTENUATION 0x8129 +#define GL_POINT_FADE_THRESHOLD_SIZE 0x8128 +#define GL_POINT_SIZE 0x0B11 +#define GL_POINT_SIZE_GRANULARITY 0x0B13 +#define GL_POINT_SIZE_MAX 0x8127 +#define GL_POINT_SIZE_MIN 0x8126 +#define GL_POINT_SIZE_RANGE 0x0B12 +#define GL_POINT_SMOOTH 0x0B10 +#define GL_POINT_SMOOTH_HINT 0x0C51 +#define GL_POINT_SPRITE 0x8861 +#define GL_POINT_SPRITE_COORD_ORIGIN 0x8CA0 +#define GL_POINT_TOKEN 0x0701 +#define GL_POLYGON 0x0009 +#define GL_POLYGON_BIT 0x00000008 +#define GL_POLYGON_MODE 0x0B40 +#define GL_POLYGON_OFFSET_FACTOR 0x8038 +#define GL_POLYGON_OFFSET_FILL 0x8037 +#define GL_POLYGON_OFFSET_LINE 0x2A02 +#define GL_POLYGON_OFFSET_POINT 0x2A01 +#define GL_POLYGON_OFFSET_UNITS 0x2A00 +#define GL_POLYGON_SMOOTH 0x0B41 +#define GL_POLYGON_SMOOTH_HINT 0x0C53 +#define GL_POLYGON_STIPPLE 0x0B42 +#define GL_POLYGON_STIPPLE_BIT 0x00000010 +#define GL_POLYGON_TOKEN 0x0703 +#define GL_POSITION 0x1203 +#define GL_PREVIOUS 0x8578 +#define GL_PRIMARY_COLOR 0x8577 +#define GL_PROJECTION 0x1701 +#define GL_PROJECTION_MATRIX 0x0BA7 +#define GL_PROJECTION_STACK_DEPTH 0x0BA4 +#define GL_PROXY_TEXTURE_1D 0x8063 +#define GL_PROXY_TEXTURE_2D 0x8064 +#define GL_PROXY_TEXTURE_3D 0x8070 +#define GL_PROXY_TEXTURE_CUBE_MAP 0x851B +#define GL_Q 0x2003 +#define GL_QUADRATIC_ATTENUATION 0x1209 +#define GL_QUADS 0x0007 +#define GL_QUAD_STRIP 0x0008 +#define GL_QUERY_COUNTER_BITS 0x8864 +#define GL_QUERY_RESULT 0x8866 +#define GL_QUERY_RESULT_AVAILABLE 0x8867 +#define GL_R 0x2002 +#define GL_R3_G3_B2 0x2A10 +#define GL_READ_BUFFER 0x0C02 +#define GL_READ_ONLY 0x88B8 +#define GL_READ_WRITE 0x88BA +#define GL_RED 0x1903 +#define GL_RED_BIAS 0x0D15 +#define GL_RED_BITS 0x0D52 +#define GL_RED_SCALE 0x0D14 +#define GL_REFLECTION_MAP 0x8512 +#define GL_RENDER 0x1C00 +#define GL_RENDERER 0x1F01 +#define GL_RENDER_MODE 0x0C40 +#define GL_REPEAT 0x2901 +#define GL_REPLACE 0x1E01 +#define GL_RESCALE_NORMAL 0x803A +#define GL_RETURN 0x0102 +#define GL_RGB 0x1907 +#define GL_RGB10 0x8052 +#define GL_RGB10_A2 0x8059 +#define GL_RGB12 0x8053 +#define GL_RGB16 0x8054 +#define GL_RGB4 0x804F +#define GL_RGB5 0x8050 +#define GL_RGB5_A1 0x8057 +#define GL_RGB8 0x8051 +#define GL_RGBA 0x1908 +#define GL_RGBA12 0x805A +#define GL_RGBA16 0x805B +#define GL_RGBA2 0x8055 +#define GL_RGBA4 0x8056 +#define GL_RGBA8 0x8058 +#define GL_RGBA_MODE 0x0C31 +#define GL_RGB_SCALE 0x8573 +#define GL_RIGHT 0x0407 +#define GL_S 0x2000 +#define GL_SAMPLER_1D 0x8B5D +#define GL_SAMPLER_1D_SHADOW 0x8B61 +#define GL_SAMPLER_2D 0x8B5E +#define GL_SAMPLER_2D_SHADOW 0x8B62 +#define GL_SAMPLER_3D 0x8B5F +#define GL_SAMPLER_CUBE 0x8B60 +#define GL_SAMPLES 0x80A9 +#define GL_SAMPLES_PASSED 0x8914 +#define GL_SAMPLE_ALPHA_TO_COVERAGE 0x809E +#define GL_SAMPLE_ALPHA_TO_ONE 0x809F +#define GL_SAMPLE_BUFFERS 0x80A8 +#define GL_SAMPLE_COVERAGE 0x80A0 +#define GL_SAMPLE_COVERAGE_INVERT 0x80AB +#define GL_SAMPLE_COVERAGE_VALUE 0x80AA +#define GL_SCISSOR_BIT 0x00080000 +#define GL_SCISSOR_BOX 0x0C10 +#define GL_SCISSOR_TEST 0x0C11 +#define GL_SECONDARY_COLOR_ARRAY 0x845E +#define GL_SECONDARY_COLOR_ARRAY_BUFFER_BINDING 0x889C +#define GL_SECONDARY_COLOR_ARRAY_POINTER 0x845D +#define GL_SECONDARY_COLOR_ARRAY_SIZE 0x845A +#define GL_SECONDARY_COLOR_ARRAY_STRIDE 0x845C +#define GL_SECONDARY_COLOR_ARRAY_TYPE 0x845B +#define GL_SELECT 0x1C02 +#define GL_SELECTION_BUFFER_POINTER 0x0DF3 +#define GL_SELECTION_BUFFER_SIZE 0x0DF4 +#define GL_SEPARATE_SPECULAR_COLOR 0x81FA +#define GL_SET 0x150F +#define GL_SHADER_SOURCE_LENGTH 0x8B88 +#define GL_SHADER_TYPE 0x8B4F +#define GL_SHADE_MODEL 0x0B54 +#define GL_SHADING_LANGUAGE_VERSION 0x8B8C +#define GL_SHININESS 0x1601 +#define GL_SHORT 0x1402 +#define GL_SINGLE_COLOR 0x81F9 +#define GL_SLUMINANCE 0x8C46 +#define GL_SLUMINANCE8 0x8C47 +#define GL_SLUMINANCE8_ALPHA8 0x8C45 +#define GL_SLUMINANCE_ALPHA 0x8C44 +#define GL_SMOOTH 0x1D01 +#define GL_SMOOTH_LINE_WIDTH_GRANULARITY 0x0B23 +#define GL_SMOOTH_LINE_WIDTH_RANGE 0x0B22 +#define GL_SMOOTH_POINT_SIZE_GRANULARITY 0x0B13 +#define GL_SMOOTH_POINT_SIZE_RANGE 0x0B12 +#define GL_SOURCE0_ALPHA 0x8588 +#define GL_SOURCE0_RGB 0x8580 +#define GL_SOURCE1_ALPHA 0x8589 +#define GL_SOURCE1_RGB 0x8581 +#define GL_SOURCE2_ALPHA 0x858A +#define GL_SOURCE2_RGB 0x8582 +#define GL_SPECULAR 0x1202 +#define GL_SPHERE_MAP 0x2402 +#define GL_SPOT_CUTOFF 0x1206 +#define GL_SPOT_DIRECTION 0x1204 +#define GL_SPOT_EXPONENT 0x1205 +#define GL_SRC0_ALPHA 0x8588 +#define GL_SRC0_RGB 0x8580 +#define GL_SRC1_ALPHA 0x8589 +#define GL_SRC1_RGB 0x8581 +#define GL_SRC2_ALPHA 0x858A +#define GL_SRC2_RGB 0x8582 +#define GL_SRC_ALPHA 0x0302 +#define GL_SRC_ALPHA_SATURATE 0x0308 +#define GL_SRC_COLOR 0x0300 +#define GL_SRGB 0x8C40 +#define GL_SRGB8 0x8C41 +#define GL_SRGB8_ALPHA8 0x8C43 +#define GL_SRGB_ALPHA 0x8C42 +#define GL_STACK_OVERFLOW 0x0503 +#define GL_STACK_UNDERFLOW 0x0504 +#define GL_STATIC_COPY 0x88E6 +#define GL_STATIC_DRAW 0x88E4 +#define GL_STATIC_READ 0x88E5 +#define GL_STENCIL 0x1802 +#define GL_STENCIL_BACK_FAIL 0x8801 +#define GL_STENCIL_BACK_FUNC 0x8800 +#define GL_STENCIL_BACK_PASS_DEPTH_FAIL 0x8802 +#define GL_STENCIL_BACK_PASS_DEPTH_PASS 0x8803 +#define GL_STENCIL_BACK_REF 0x8CA3 +#define GL_STENCIL_BACK_VALUE_MASK 0x8CA4 +#define GL_STENCIL_BACK_WRITEMASK 0x8CA5 +#define GL_STENCIL_BITS 0x0D57 +#define GL_STENCIL_BUFFER_BIT 0x00000400 +#define GL_STENCIL_CLEAR_VALUE 0x0B91 +#define GL_STENCIL_FAIL 0x0B94 +#define GL_STENCIL_FUNC 0x0B92 +#define GL_STENCIL_INDEX 0x1901 +#define GL_STENCIL_PASS_DEPTH_FAIL 0x0B95 +#define GL_STENCIL_PASS_DEPTH_PASS 0x0B96 +#define GL_STENCIL_REF 0x0B97 +#define GL_STENCIL_TEST 0x0B90 +#define GL_STENCIL_VALUE_MASK 0x0B93 +#define GL_STENCIL_WRITEMASK 0x0B98 +#define GL_STEREO 0x0C33 +#define GL_STREAM_COPY 0x88E2 +#define GL_STREAM_DRAW 0x88E0 +#define GL_STREAM_READ 0x88E1 +#define GL_SUBPIXEL_BITS 0x0D50 +#define GL_SUBTRACT 0x84E7 +#define GL_T 0x2001 +#define GL_T2F_C3F_V3F 0x2A2A +#define GL_T2F_C4F_N3F_V3F 0x2A2C +#define GL_T2F_C4UB_V3F 0x2A29 +#define GL_T2F_N3F_V3F 0x2A2B +#define GL_T2F_V3F 0x2A27 +#define GL_T4F_C4F_N3F_V4F 0x2A2D +#define GL_T4F_V4F 0x2A28 +#define GL_TEXTURE 0x1702 +#define GL_TEXTURE0 0x84C0 +#define GL_TEXTURE1 0x84C1 +#define GL_TEXTURE10 0x84CA +#define GL_TEXTURE11 0x84CB +#define GL_TEXTURE12 0x84CC +#define GL_TEXTURE13 0x84CD +#define GL_TEXTURE14 0x84CE +#define GL_TEXTURE15 0x84CF +#define GL_TEXTURE16 0x84D0 +#define GL_TEXTURE17 0x84D1 +#define GL_TEXTURE18 0x84D2 +#define GL_TEXTURE19 0x84D3 +#define GL_TEXTURE2 0x84C2 +#define GL_TEXTURE20 0x84D4 +#define GL_TEXTURE21 0x84D5 +#define GL_TEXTURE22 0x84D6 +#define GL_TEXTURE23 0x84D7 +#define GL_TEXTURE24 0x84D8 +#define GL_TEXTURE25 0x84D9 +#define GL_TEXTURE26 0x84DA +#define GL_TEXTURE27 0x84DB +#define GL_TEXTURE28 0x84DC +#define GL_TEXTURE29 0x84DD +#define GL_TEXTURE3 0x84C3 +#define GL_TEXTURE30 0x84DE +#define GL_TEXTURE31 0x84DF +#define GL_TEXTURE4 0x84C4 +#define GL_TEXTURE5 0x84C5 +#define GL_TEXTURE6 0x84C6 +#define GL_TEXTURE7 0x84C7 +#define GL_TEXTURE8 0x84C8 +#define GL_TEXTURE9 0x84C9 +#define GL_TEXTURE_1D 0x0DE0 +#define GL_TEXTURE_2D 0x0DE1 +#define GL_TEXTURE_3D 0x806F +#define GL_TEXTURE_ALPHA_SIZE 0x805F +#define GL_TEXTURE_BASE_LEVEL 0x813C +#define GL_TEXTURE_BINDING_1D 0x8068 +#define GL_TEXTURE_BINDING_2D 0x8069 +#define GL_TEXTURE_BINDING_3D 0x806A +#define GL_TEXTURE_BINDING_CUBE_MAP 0x8514 +#define GL_TEXTURE_BIT 0x00040000 +#define GL_TEXTURE_BLUE_SIZE 0x805E +#define GL_TEXTURE_BORDER 0x1005 +#define GL_TEXTURE_BORDER_COLOR 0x1004 +#define GL_TEXTURE_COMPARE_FUNC 0x884D +#define GL_TEXTURE_COMPARE_MODE 0x884C +#define GL_TEXTURE_COMPONENTS 0x1003 +#define GL_TEXTURE_COMPRESSED 0x86A1 +#define GL_TEXTURE_COMPRESSED_IMAGE_SIZE 0x86A0 +#define GL_TEXTURE_COMPRESSION_HINT 0x84EF +#define GL_TEXTURE_COORD_ARRAY 0x8078 +#define GL_TEXTURE_COORD_ARRAY_BUFFER_BINDING 0x889A +#define GL_TEXTURE_COORD_ARRAY_POINTER 0x8092 +#define GL_TEXTURE_COORD_ARRAY_SIZE 0x8088 +#define GL_TEXTURE_COORD_ARRAY_STRIDE 0x808A +#define GL_TEXTURE_COORD_ARRAY_TYPE 0x8089 +#define GL_TEXTURE_CUBE_MAP 0x8513 +#define GL_TEXTURE_CUBE_MAP_NEGATIVE_X 0x8516 +#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Y 0x8518 +#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Z 0x851A +#define GL_TEXTURE_CUBE_MAP_POSITIVE_X 0x8515 +#define GL_TEXTURE_CUBE_MAP_POSITIVE_Y 0x8517 +#define GL_TEXTURE_CUBE_MAP_POSITIVE_Z 0x8519 +#define GL_TEXTURE_DEPTH 0x8071 +#define GL_TEXTURE_DEPTH_SIZE 0x884A +#define GL_TEXTURE_ENV 0x2300 +#define GL_TEXTURE_ENV_COLOR 0x2201 +#define GL_TEXTURE_ENV_MODE 0x2200 +#define GL_TEXTURE_FILTER_CONTROL 0x8500 +#define GL_TEXTURE_GEN_MODE 0x2500 +#define GL_TEXTURE_GEN_Q 0x0C63 +#define GL_TEXTURE_GEN_R 0x0C62 +#define GL_TEXTURE_GEN_S 0x0C60 +#define GL_TEXTURE_GEN_T 0x0C61 +#define GL_TEXTURE_GREEN_SIZE 0x805D +#define GL_TEXTURE_HEIGHT 0x1001 +#define GL_TEXTURE_INTENSITY_SIZE 0x8061 +#define GL_TEXTURE_INTERNAL_FORMAT 0x1003 +#define GL_TEXTURE_LOD_BIAS 0x8501 +#define GL_TEXTURE_LUMINANCE_SIZE 0x8060 +#define GL_TEXTURE_MAG_FILTER 0x2800 +#define GL_TEXTURE_MATRIX 0x0BA8 +#define GL_TEXTURE_MAX_LEVEL 0x813D +#define GL_TEXTURE_MAX_LOD 0x813B +#define GL_TEXTURE_MIN_FILTER 0x2801 +#define GL_TEXTURE_MIN_LOD 0x813A +#define GL_TEXTURE_PRIORITY 0x8066 +#define GL_TEXTURE_RED_SIZE 0x805C +#define GL_TEXTURE_RESIDENT 0x8067 +#define GL_TEXTURE_STACK_DEPTH 0x0BA5 +#define GL_TEXTURE_WIDTH 0x1000 +#define GL_TEXTURE_WRAP_R 0x8072 +#define GL_TEXTURE_WRAP_S 0x2802 +#define GL_TEXTURE_WRAP_T 0x2803 +#define GL_TRANSFORM_BIT 0x00001000 +#define GL_TRANSPOSE_COLOR_MATRIX 0x84E6 +#define GL_TRANSPOSE_MODELVIEW_MATRIX 0x84E3 +#define GL_TRANSPOSE_PROJECTION_MATRIX 0x84E4 +#define GL_TRANSPOSE_TEXTURE_MATRIX 0x84E5 +#define GL_TRIANGLES 0x0004 +#define GL_TRIANGLE_FAN 0x0006 +#define GL_TRIANGLE_STRIP 0x0005 +#define GL_TRUE 1 +#define GL_UNPACK_ALIGNMENT 0x0CF5 +#define GL_UNPACK_IMAGE_HEIGHT 0x806E +#define GL_UNPACK_LSB_FIRST 0x0CF1 +#define GL_UNPACK_ROW_LENGTH 0x0CF2 +#define GL_UNPACK_SKIP_IMAGES 0x806D +#define GL_UNPACK_SKIP_PIXELS 0x0CF4 +#define GL_UNPACK_SKIP_ROWS 0x0CF3 +#define GL_UNPACK_SWAP_BYTES 0x0CF0 +#define GL_UNSIGNED_BYTE 0x1401 +#define GL_UNSIGNED_BYTE_2_3_3_REV 0x8362 +#define GL_UNSIGNED_BYTE_3_3_2 0x8032 +#define GL_UNSIGNED_INT 0x1405 +#define GL_UNSIGNED_INT_10_10_10_2 0x8036 +#define GL_UNSIGNED_INT_2_10_10_10_REV 0x8368 +#define GL_UNSIGNED_INT_8_8_8_8 0x8035 +#define GL_UNSIGNED_INT_8_8_8_8_REV 0x8367 +#define GL_UNSIGNED_SHORT 0x1403 +#define GL_UNSIGNED_SHORT_1_5_5_5_REV 0x8366 +#define GL_UNSIGNED_SHORT_4_4_4_4 0x8033 +#define GL_UNSIGNED_SHORT_4_4_4_4_REV 0x8365 +#define GL_UNSIGNED_SHORT_5_5_5_1 0x8034 +#define GL_UNSIGNED_SHORT_5_6_5 0x8363 +#define GL_UNSIGNED_SHORT_5_6_5_REV 0x8364 +#define GL_UPPER_LEFT 0x8CA2 +#define GL_V2F 0x2A20 +#define GL_V3F 0x2A21 +#define GL_VALIDATE_STATUS 0x8B83 +#define GL_VENDOR 0x1F00 +#define GL_VERSION 0x1F02 +#define GL_VERTEX_ARRAY 0x8074 +#define GL_VERTEX_ARRAY_BUFFER_BINDING 0x8896 +#define GL_VERTEX_ARRAY_POINTER 0x808E +#define GL_VERTEX_ARRAY_SIZE 0x807A +#define GL_VERTEX_ARRAY_STRIDE 0x807C +#define GL_VERTEX_ARRAY_TYPE 0x807B +#define GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING 0x889F +#define GL_VERTEX_ATTRIB_ARRAY_ENABLED 0x8622 +#define GL_VERTEX_ATTRIB_ARRAY_NORMALIZED 0x886A +#define GL_VERTEX_ATTRIB_ARRAY_POINTER 0x8645 +#define GL_VERTEX_ATTRIB_ARRAY_SIZE 0x8623 +#define GL_VERTEX_ATTRIB_ARRAY_STRIDE 0x8624 +#define GL_VERTEX_ATTRIB_ARRAY_TYPE 0x8625 +#define GL_VERTEX_PROGRAM_POINT_SIZE 0x8642 +#define GL_VERTEX_PROGRAM_TWO_SIDE 0x8643 +#define GL_VERTEX_SHADER 0x8B31 +#define GL_VIEWPORT 0x0BA2 +#define GL_VIEWPORT_BIT 0x00000800 +#define GL_WEIGHT_ARRAY_BUFFER_BINDING 0x889E +#define GL_WRITE_ONLY 0x88B9 +#define GL_XOR 0x1506 +#define GL_ZERO 0 +#define GL_ZOOM_X 0x0D16 +#define GL_ZOOM_Y 0x0D17 + + +#include + +typedef unsigned int GLenum; + +typedef unsigned char GLboolean; + +typedef unsigned int GLbitfield; + +typedef void GLvoid; + +typedef khronos_int8_t GLbyte; + +typedef khronos_uint8_t GLubyte; + +typedef khronos_int16_t GLshort; + +typedef khronos_uint16_t GLushort; + +typedef int GLint; + +typedef unsigned int GLuint; + +typedef khronos_int32_t GLclampx; + +typedef int GLsizei; + +typedef khronos_float_t GLfloat; + +typedef khronos_float_t GLclampf; + +typedef double GLdouble; + +typedef double GLclampd; + +typedef void *GLeglClientBufferEXT; + +typedef void *GLeglImageOES; + +typedef char GLchar; + +typedef char GLcharARB; + +#ifdef __APPLE__ +typedef void *GLhandleARB; +#else +typedef unsigned int GLhandleARB; +#endif + +typedef khronos_uint16_t GLhalf; + +typedef khronos_uint16_t GLhalfARB; + +typedef khronos_int32_t GLfixed; + +#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ > 1060) +typedef khronos_intptr_t GLintptr; +#else +typedef khronos_intptr_t GLintptr; +#endif + +#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ > 1060) +typedef khronos_intptr_t GLintptrARB; +#else +typedef khronos_intptr_t GLintptrARB; +#endif + +#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ > 1060) +typedef khronos_ssize_t GLsizeiptr; +#else +typedef khronos_ssize_t GLsizeiptr; +#endif + +#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ > 1060) +typedef khronos_ssize_t GLsizeiptrARB; +#else +typedef khronos_ssize_t GLsizeiptrARB; +#endif + +typedef khronos_int64_t GLint64; + +typedef khronos_int64_t GLint64EXT; + +typedef khronos_uint64_t GLuint64; + +typedef khronos_uint64_t GLuint64EXT; + +typedef struct __GLsync *GLsync; + +struct _cl_context; + +struct _cl_event; + +typedef void (GLAD_API_PTR *GLDEBUGPROC)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam); + +typedef void (GLAD_API_PTR *GLDEBUGPROCARB)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam); + +typedef void (GLAD_API_PTR *GLDEBUGPROCKHR)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam); + +typedef void (GLAD_API_PTR *GLDEBUGPROCAMD)(GLuint id,GLenum category,GLenum severity,GLsizei length,const GLchar *message,void *userParam); + +typedef unsigned short GLhalfNV; + +typedef GLintptr GLvdpauSurfaceNV; + +typedef void (GLAD_API_PTR *GLVULKANPROCNV)(void); + + + +#define GL_VERSION_1_0 1 +GLAD_API_CALL int GLAD_GL_VERSION_1_0; +#define GL_VERSION_1_1 1 +GLAD_API_CALL int GLAD_GL_VERSION_1_1; +#define GL_VERSION_1_2 1 +GLAD_API_CALL int GLAD_GL_VERSION_1_2; +#define GL_VERSION_1_3 1 +GLAD_API_CALL int GLAD_GL_VERSION_1_3; +#define GL_VERSION_1_4 1 +GLAD_API_CALL int GLAD_GL_VERSION_1_4; +#define GL_VERSION_1_5 1 +GLAD_API_CALL int GLAD_GL_VERSION_1_5; +#define GL_VERSION_2_0 1 +GLAD_API_CALL int GLAD_GL_VERSION_2_0; +#define GL_VERSION_2_1 1 +GLAD_API_CALL int GLAD_GL_VERSION_2_1; + + +typedef void (GLAD_API_PTR *PFNGLACCUMPROC)(GLenum op, GLfloat value); +typedef void (GLAD_API_PTR *PFNGLACTIVETEXTUREPROC)(GLenum texture); +typedef void (GLAD_API_PTR *PFNGLALPHAFUNCPROC)(GLenum func, GLfloat ref); +typedef GLboolean (GLAD_API_PTR *PFNGLARETEXTURESRESIDENTPROC)(GLsizei n, const GLuint * textures, GLboolean * residences); +typedef void (GLAD_API_PTR *PFNGLARRAYELEMENTPROC)(GLint i); +typedef void (GLAD_API_PTR *PFNGLATTACHSHADERPROC)(GLuint program, GLuint shader); +typedef void (GLAD_API_PTR *PFNGLBEGINPROC)(GLenum mode); +typedef void (GLAD_API_PTR *PFNGLBEGINQUERYPROC)(GLenum target, GLuint id); +typedef void (GLAD_API_PTR *PFNGLBINDATTRIBLOCATIONPROC)(GLuint program, GLuint index, const GLchar * name); +typedef void (GLAD_API_PTR *PFNGLBINDBUFFERPROC)(GLenum target, GLuint buffer); +typedef void (GLAD_API_PTR *PFNGLBINDTEXTUREPROC)(GLenum target, GLuint texture); +typedef void (GLAD_API_PTR *PFNGLBITMAPPROC)(GLsizei width, GLsizei height, GLfloat xorig, GLfloat yorig, GLfloat xmove, GLfloat ymove, const GLubyte * bitmap); +typedef void (GLAD_API_PTR *PFNGLBLENDCOLORPROC)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha); +typedef void (GLAD_API_PTR *PFNGLBLENDEQUATIONPROC)(GLenum mode); +typedef void (GLAD_API_PTR *PFNGLBLENDEQUATIONSEPARATEPROC)(GLenum modeRGB, GLenum modeAlpha); +typedef void (GLAD_API_PTR *PFNGLBLENDFUNCPROC)(GLenum sfactor, GLenum dfactor); +typedef void (GLAD_API_PTR *PFNGLBLENDFUNCSEPARATEPROC)(GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha); +typedef void (GLAD_API_PTR *PFNGLBUFFERDATAPROC)(GLenum target, GLsizeiptr size, const void * data, GLenum usage); +typedef void (GLAD_API_PTR *PFNGLBUFFERSUBDATAPROC)(GLenum target, GLintptr offset, GLsizeiptr size, const void * data); +typedef void (GLAD_API_PTR *PFNGLCALLLISTPROC)(GLuint list); +typedef void (GLAD_API_PTR *PFNGLCALLLISTSPROC)(GLsizei n, GLenum type, const void * lists); +typedef void (GLAD_API_PTR *PFNGLCLEARPROC)(GLbitfield mask); +typedef void (GLAD_API_PTR *PFNGLCLEARACCUMPROC)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha); +typedef void (GLAD_API_PTR *PFNGLCLEARCOLORPROC)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha); +typedef void (GLAD_API_PTR *PFNGLCLEARDEPTHPROC)(GLdouble depth); +typedef void (GLAD_API_PTR *PFNGLCLEARINDEXPROC)(GLfloat c); +typedef void (GLAD_API_PTR *PFNGLCLEARSTENCILPROC)(GLint s); +typedef void (GLAD_API_PTR *PFNGLCLIENTACTIVETEXTUREPROC)(GLenum texture); +typedef void (GLAD_API_PTR *PFNGLCLIPPLANEPROC)(GLenum plane, const GLdouble * equation); +typedef void (GLAD_API_PTR *PFNGLCOLOR3BPROC)(GLbyte red, GLbyte green, GLbyte blue); +typedef void (GLAD_API_PTR *PFNGLCOLOR3BVPROC)(const GLbyte * v); +typedef void (GLAD_API_PTR *PFNGLCOLOR3DPROC)(GLdouble red, GLdouble green, GLdouble blue); +typedef void (GLAD_API_PTR *PFNGLCOLOR3DVPROC)(const GLdouble * v); +typedef void (GLAD_API_PTR *PFNGLCOLOR3FPROC)(GLfloat red, GLfloat green, GLfloat blue); +typedef void (GLAD_API_PTR *PFNGLCOLOR3FVPROC)(const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLCOLOR3IPROC)(GLint red, GLint green, GLint blue); +typedef void (GLAD_API_PTR *PFNGLCOLOR3IVPROC)(const GLint * v); +typedef void (GLAD_API_PTR *PFNGLCOLOR3SPROC)(GLshort red, GLshort green, GLshort blue); +typedef void (GLAD_API_PTR *PFNGLCOLOR3SVPROC)(const GLshort * v); +typedef void (GLAD_API_PTR *PFNGLCOLOR3UBPROC)(GLubyte red, GLubyte green, GLubyte blue); +typedef void (GLAD_API_PTR *PFNGLCOLOR3UBVPROC)(const GLubyte * v); +typedef void (GLAD_API_PTR *PFNGLCOLOR3UIPROC)(GLuint red, GLuint green, GLuint blue); +typedef void (GLAD_API_PTR *PFNGLCOLOR3UIVPROC)(const GLuint * v); +typedef void (GLAD_API_PTR *PFNGLCOLOR3USPROC)(GLushort red, GLushort green, GLushort blue); +typedef void (GLAD_API_PTR *PFNGLCOLOR3USVPROC)(const GLushort * v); +typedef void (GLAD_API_PTR *PFNGLCOLOR4BPROC)(GLbyte red, GLbyte green, GLbyte blue, GLbyte alpha); +typedef void (GLAD_API_PTR *PFNGLCOLOR4BVPROC)(const GLbyte * v); +typedef void (GLAD_API_PTR *PFNGLCOLOR4DPROC)(GLdouble red, GLdouble green, GLdouble blue, GLdouble alpha); +typedef void (GLAD_API_PTR *PFNGLCOLOR4DVPROC)(const GLdouble * v); +typedef void (GLAD_API_PTR *PFNGLCOLOR4FPROC)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha); +typedef void (GLAD_API_PTR *PFNGLCOLOR4FVPROC)(const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLCOLOR4IPROC)(GLint red, GLint green, GLint blue, GLint alpha); +typedef void (GLAD_API_PTR *PFNGLCOLOR4IVPROC)(const GLint * v); +typedef void (GLAD_API_PTR *PFNGLCOLOR4SPROC)(GLshort red, GLshort green, GLshort blue, GLshort alpha); +typedef void (GLAD_API_PTR *PFNGLCOLOR4SVPROC)(const GLshort * v); +typedef void (GLAD_API_PTR *PFNGLCOLOR4UBPROC)(GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha); +typedef void (GLAD_API_PTR *PFNGLCOLOR4UBVPROC)(const GLubyte * v); +typedef void (GLAD_API_PTR *PFNGLCOLOR4UIPROC)(GLuint red, GLuint green, GLuint blue, GLuint alpha); +typedef void (GLAD_API_PTR *PFNGLCOLOR4UIVPROC)(const GLuint * v); +typedef void (GLAD_API_PTR *PFNGLCOLOR4USPROC)(GLushort red, GLushort green, GLushort blue, GLushort alpha); +typedef void (GLAD_API_PTR *PFNGLCOLOR4USVPROC)(const GLushort * v); +typedef void (GLAD_API_PTR *PFNGLCOLORMASKPROC)(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha); +typedef void (GLAD_API_PTR *PFNGLCOLORMATERIALPROC)(GLenum face, GLenum mode); +typedef void (GLAD_API_PTR *PFNGLCOLORPOINTERPROC)(GLint size, GLenum type, GLsizei stride, const void * pointer); +typedef void (GLAD_API_PTR *PFNGLCOMPILESHADERPROC)(GLuint shader); +typedef void (GLAD_API_PTR *PFNGLCOMPRESSEDTEXIMAGE1DPROC)(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLint border, GLsizei imageSize, const void * data); +typedef void (GLAD_API_PTR *PFNGLCOMPRESSEDTEXIMAGE2DPROC)(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const void * data); +typedef void (GLAD_API_PTR *PFNGLCOMPRESSEDTEXIMAGE3DPROC)(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLsizei imageSize, const void * data); +typedef void (GLAD_API_PTR *PFNGLCOMPRESSEDTEXSUBIMAGE1DPROC)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLsizei imageSize, const void * data); +typedef void (GLAD_API_PTR *PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void * data); +typedef void (GLAD_API_PTR *PFNGLCOMPRESSEDTEXSUBIMAGE3DPROC)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const void * data); +typedef void (GLAD_API_PTR *PFNGLCOPYPIXELSPROC)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum type); +typedef void (GLAD_API_PTR *PFNGLCOPYTEXIMAGE1DPROC)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border); +typedef void (GLAD_API_PTR *PFNGLCOPYTEXIMAGE2DPROC)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border); +typedef void (GLAD_API_PTR *PFNGLCOPYTEXSUBIMAGE1DPROC)(GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width); +typedef void (GLAD_API_PTR *PFNGLCOPYTEXSUBIMAGE2DPROC)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height); +typedef void (GLAD_API_PTR *PFNGLCOPYTEXSUBIMAGE3DPROC)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height); +typedef GLuint (GLAD_API_PTR *PFNGLCREATEPROGRAMPROC)(void); +typedef GLuint (GLAD_API_PTR *PFNGLCREATESHADERPROC)(GLenum type); +typedef void (GLAD_API_PTR *PFNGLCULLFACEPROC)(GLenum mode); +typedef void (GLAD_API_PTR *PFNGLDELETEBUFFERSPROC)(GLsizei n, const GLuint * buffers); +typedef void (GLAD_API_PTR *PFNGLDELETELISTSPROC)(GLuint list, GLsizei range); +typedef void (GLAD_API_PTR *PFNGLDELETEPROGRAMPROC)(GLuint program); +typedef void (GLAD_API_PTR *PFNGLDELETEQUERIESPROC)(GLsizei n, const GLuint * ids); +typedef void (GLAD_API_PTR *PFNGLDELETESHADERPROC)(GLuint shader); +typedef void (GLAD_API_PTR *PFNGLDELETETEXTURESPROC)(GLsizei n, const GLuint * textures); +typedef void (GLAD_API_PTR *PFNGLDEPTHFUNCPROC)(GLenum func); +typedef void (GLAD_API_PTR *PFNGLDEPTHMASKPROC)(GLboolean flag); +typedef void (GLAD_API_PTR *PFNGLDEPTHRANGEPROC)(GLdouble n, GLdouble f); +typedef void (GLAD_API_PTR *PFNGLDETACHSHADERPROC)(GLuint program, GLuint shader); +typedef void (GLAD_API_PTR *PFNGLDISABLEPROC)(GLenum cap); +typedef void (GLAD_API_PTR *PFNGLDISABLECLIENTSTATEPROC)(GLenum array); +typedef void (GLAD_API_PTR *PFNGLDISABLEVERTEXATTRIBARRAYPROC)(GLuint index); +typedef void (GLAD_API_PTR *PFNGLDRAWARRAYSPROC)(GLenum mode, GLint first, GLsizei count); +typedef void (GLAD_API_PTR *PFNGLDRAWBUFFERPROC)(GLenum buf); +typedef void (GLAD_API_PTR *PFNGLDRAWBUFFERSPROC)(GLsizei n, const GLenum * bufs); +typedef void (GLAD_API_PTR *PFNGLDRAWELEMENTSPROC)(GLenum mode, GLsizei count, GLenum type, const void * indices); +typedef void (GLAD_API_PTR *PFNGLDRAWPIXELSPROC)(GLsizei width, GLsizei height, GLenum format, GLenum type, const void * pixels); +typedef void (GLAD_API_PTR *PFNGLDRAWRANGEELEMENTSPROC)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void * indices); +typedef void (GLAD_API_PTR *PFNGLEDGEFLAGPROC)(GLboolean flag); +typedef void (GLAD_API_PTR *PFNGLEDGEFLAGPOINTERPROC)(GLsizei stride, const void * pointer); +typedef void (GLAD_API_PTR *PFNGLEDGEFLAGVPROC)(const GLboolean * flag); +typedef void (GLAD_API_PTR *PFNGLENABLEPROC)(GLenum cap); +typedef void (GLAD_API_PTR *PFNGLENABLECLIENTSTATEPROC)(GLenum array); +typedef void (GLAD_API_PTR *PFNGLENABLEVERTEXATTRIBARRAYPROC)(GLuint index); +typedef void (GLAD_API_PTR *PFNGLENDPROC)(void); +typedef void (GLAD_API_PTR *PFNGLENDLISTPROC)(void); +typedef void (GLAD_API_PTR *PFNGLENDQUERYPROC)(GLenum target); +typedef void (GLAD_API_PTR *PFNGLEVALCOORD1DPROC)(GLdouble u); +typedef void (GLAD_API_PTR *PFNGLEVALCOORD1DVPROC)(const GLdouble * u); +typedef void (GLAD_API_PTR *PFNGLEVALCOORD1FPROC)(GLfloat u); +typedef void (GLAD_API_PTR *PFNGLEVALCOORD1FVPROC)(const GLfloat * u); +typedef void (GLAD_API_PTR *PFNGLEVALCOORD2DPROC)(GLdouble u, GLdouble v); +typedef void (GLAD_API_PTR *PFNGLEVALCOORD2DVPROC)(const GLdouble * u); +typedef void (GLAD_API_PTR *PFNGLEVALCOORD2FPROC)(GLfloat u, GLfloat v); +typedef void (GLAD_API_PTR *PFNGLEVALCOORD2FVPROC)(const GLfloat * u); +typedef void (GLAD_API_PTR *PFNGLEVALMESH1PROC)(GLenum mode, GLint i1, GLint i2); +typedef void (GLAD_API_PTR *PFNGLEVALMESH2PROC)(GLenum mode, GLint i1, GLint i2, GLint j1, GLint j2); +typedef void (GLAD_API_PTR *PFNGLEVALPOINT1PROC)(GLint i); +typedef void (GLAD_API_PTR *PFNGLEVALPOINT2PROC)(GLint i, GLint j); +typedef void (GLAD_API_PTR *PFNGLFEEDBACKBUFFERPROC)(GLsizei size, GLenum type, GLfloat * buffer); +typedef void (GLAD_API_PTR *PFNGLFINISHPROC)(void); +typedef void (GLAD_API_PTR *PFNGLFLUSHPROC)(void); +typedef void (GLAD_API_PTR *PFNGLFOGCOORDPOINTERPROC)(GLenum type, GLsizei stride, const void * pointer); +typedef void (GLAD_API_PTR *PFNGLFOGCOORDDPROC)(GLdouble coord); +typedef void (GLAD_API_PTR *PFNGLFOGCOORDDVPROC)(const GLdouble * coord); +typedef void (GLAD_API_PTR *PFNGLFOGCOORDFPROC)(GLfloat coord); +typedef void (GLAD_API_PTR *PFNGLFOGCOORDFVPROC)(const GLfloat * coord); +typedef void (GLAD_API_PTR *PFNGLFOGFPROC)(GLenum pname, GLfloat param); +typedef void (GLAD_API_PTR *PFNGLFOGFVPROC)(GLenum pname, const GLfloat * params); +typedef void (GLAD_API_PTR *PFNGLFOGIPROC)(GLenum pname, GLint param); +typedef void (GLAD_API_PTR *PFNGLFOGIVPROC)(GLenum pname, const GLint * params); +typedef void (GLAD_API_PTR *PFNGLFRONTFACEPROC)(GLenum mode); +typedef void (GLAD_API_PTR *PFNGLFRUSTUMPROC)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble zNear, GLdouble zFar); +typedef void (GLAD_API_PTR *PFNGLGENBUFFERSPROC)(GLsizei n, GLuint * buffers); +typedef GLuint (GLAD_API_PTR *PFNGLGENLISTSPROC)(GLsizei range); +typedef void (GLAD_API_PTR *PFNGLGENQUERIESPROC)(GLsizei n, GLuint * ids); +typedef void (GLAD_API_PTR *PFNGLGENTEXTURESPROC)(GLsizei n, GLuint * textures); +typedef void (GLAD_API_PTR *PFNGLGETACTIVEATTRIBPROC)(GLuint program, GLuint index, GLsizei bufSize, GLsizei * length, GLint * size, GLenum * type, GLchar * name); +typedef void (GLAD_API_PTR *PFNGLGETACTIVEUNIFORMPROC)(GLuint program, GLuint index, GLsizei bufSize, GLsizei * length, GLint * size, GLenum * type, GLchar * name); +typedef void (GLAD_API_PTR *PFNGLGETATTACHEDSHADERSPROC)(GLuint program, GLsizei maxCount, GLsizei * count, GLuint * shaders); +typedef GLint (GLAD_API_PTR *PFNGLGETATTRIBLOCATIONPROC)(GLuint program, const GLchar * name); +typedef void (GLAD_API_PTR *PFNGLGETBOOLEANVPROC)(GLenum pname, GLboolean * data); +typedef void (GLAD_API_PTR *PFNGLGETBUFFERPARAMETERIVPROC)(GLenum target, GLenum pname, GLint * params); +typedef void (GLAD_API_PTR *PFNGLGETBUFFERPOINTERVPROC)(GLenum target, GLenum pname, void ** params); +typedef void (GLAD_API_PTR *PFNGLGETBUFFERSUBDATAPROC)(GLenum target, GLintptr offset, GLsizeiptr size, void * data); +typedef void (GLAD_API_PTR *PFNGLGETCLIPPLANEPROC)(GLenum plane, GLdouble * equation); +typedef void (GLAD_API_PTR *PFNGLGETCOMPRESSEDTEXIMAGEPROC)(GLenum target, GLint level, void * img); +typedef void (GLAD_API_PTR *PFNGLGETDOUBLEVPROC)(GLenum pname, GLdouble * data); +typedef GLenum (GLAD_API_PTR *PFNGLGETERRORPROC)(void); +typedef void (GLAD_API_PTR *PFNGLGETFLOATVPROC)(GLenum pname, GLfloat * data); +typedef void (GLAD_API_PTR *PFNGLGETINTEGERVPROC)(GLenum pname, GLint * data); +typedef void (GLAD_API_PTR *PFNGLGETLIGHTFVPROC)(GLenum light, GLenum pname, GLfloat * params); +typedef void (GLAD_API_PTR *PFNGLGETLIGHTIVPROC)(GLenum light, GLenum pname, GLint * params); +typedef void (GLAD_API_PTR *PFNGLGETMAPDVPROC)(GLenum target, GLenum query, GLdouble * v); +typedef void (GLAD_API_PTR *PFNGLGETMAPFVPROC)(GLenum target, GLenum query, GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLGETMAPIVPROC)(GLenum target, GLenum query, GLint * v); +typedef void (GLAD_API_PTR *PFNGLGETMATERIALFVPROC)(GLenum face, GLenum pname, GLfloat * params); +typedef void (GLAD_API_PTR *PFNGLGETMATERIALIVPROC)(GLenum face, GLenum pname, GLint * params); +typedef void (GLAD_API_PTR *PFNGLGETPIXELMAPFVPROC)(GLenum map, GLfloat * values); +typedef void (GLAD_API_PTR *PFNGLGETPIXELMAPUIVPROC)(GLenum map, GLuint * values); +typedef void (GLAD_API_PTR *PFNGLGETPIXELMAPUSVPROC)(GLenum map, GLushort * values); +typedef void (GLAD_API_PTR *PFNGLGETPOINTERVPROC)(GLenum pname, void ** params); +typedef void (GLAD_API_PTR *PFNGLGETPOLYGONSTIPPLEPROC)(GLubyte * mask); +typedef void (GLAD_API_PTR *PFNGLGETPROGRAMINFOLOGPROC)(GLuint program, GLsizei bufSize, GLsizei * length, GLchar * infoLog); +typedef void (GLAD_API_PTR *PFNGLGETPROGRAMIVPROC)(GLuint program, GLenum pname, GLint * params); +typedef void (GLAD_API_PTR *PFNGLGETQUERYOBJECTIVPROC)(GLuint id, GLenum pname, GLint * params); +typedef void (GLAD_API_PTR *PFNGLGETQUERYOBJECTUIVPROC)(GLuint id, GLenum pname, GLuint * params); +typedef void (GLAD_API_PTR *PFNGLGETQUERYIVPROC)(GLenum target, GLenum pname, GLint * params); +typedef void (GLAD_API_PTR *PFNGLGETSHADERINFOLOGPROC)(GLuint shader, GLsizei bufSize, GLsizei * length, GLchar * infoLog); +typedef void (GLAD_API_PTR *PFNGLGETSHADERSOURCEPROC)(GLuint shader, GLsizei bufSize, GLsizei * length, GLchar * source); +typedef void (GLAD_API_PTR *PFNGLGETSHADERIVPROC)(GLuint shader, GLenum pname, GLint * params); +typedef const GLubyte * (GLAD_API_PTR *PFNGLGETSTRINGPROC)(GLenum name); +typedef void (GLAD_API_PTR *PFNGLGETTEXENVFVPROC)(GLenum target, GLenum pname, GLfloat * params); +typedef void (GLAD_API_PTR *PFNGLGETTEXENVIVPROC)(GLenum target, GLenum pname, GLint * params); +typedef void (GLAD_API_PTR *PFNGLGETTEXGENDVPROC)(GLenum coord, GLenum pname, GLdouble * params); +typedef void (GLAD_API_PTR *PFNGLGETTEXGENFVPROC)(GLenum coord, GLenum pname, GLfloat * params); +typedef void (GLAD_API_PTR *PFNGLGETTEXGENIVPROC)(GLenum coord, GLenum pname, GLint * params); +typedef void (GLAD_API_PTR *PFNGLGETTEXIMAGEPROC)(GLenum target, GLint level, GLenum format, GLenum type, void * pixels); +typedef void (GLAD_API_PTR *PFNGLGETTEXLEVELPARAMETERFVPROC)(GLenum target, GLint level, GLenum pname, GLfloat * params); +typedef void (GLAD_API_PTR *PFNGLGETTEXLEVELPARAMETERIVPROC)(GLenum target, GLint level, GLenum pname, GLint * params); +typedef void (GLAD_API_PTR *PFNGLGETTEXPARAMETERFVPROC)(GLenum target, GLenum pname, GLfloat * params); +typedef void (GLAD_API_PTR *PFNGLGETTEXPARAMETERIVPROC)(GLenum target, GLenum pname, GLint * params); +typedef GLint (GLAD_API_PTR *PFNGLGETUNIFORMLOCATIONPROC)(GLuint program, const GLchar * name); +typedef void (GLAD_API_PTR *PFNGLGETUNIFORMFVPROC)(GLuint program, GLint location, GLfloat * params); +typedef void (GLAD_API_PTR *PFNGLGETUNIFORMIVPROC)(GLuint program, GLint location, GLint * params); +typedef void (GLAD_API_PTR *PFNGLGETVERTEXATTRIBPOINTERVPROC)(GLuint index, GLenum pname, void ** pointer); +typedef void (GLAD_API_PTR *PFNGLGETVERTEXATTRIBDVPROC)(GLuint index, GLenum pname, GLdouble * params); +typedef void (GLAD_API_PTR *PFNGLGETVERTEXATTRIBFVPROC)(GLuint index, GLenum pname, GLfloat * params); +typedef void (GLAD_API_PTR *PFNGLGETVERTEXATTRIBIVPROC)(GLuint index, GLenum pname, GLint * params); +typedef void (GLAD_API_PTR *PFNGLHINTPROC)(GLenum target, GLenum mode); +typedef void (GLAD_API_PTR *PFNGLINDEXMASKPROC)(GLuint mask); +typedef void (GLAD_API_PTR *PFNGLINDEXPOINTERPROC)(GLenum type, GLsizei stride, const void * pointer); +typedef void (GLAD_API_PTR *PFNGLINDEXDPROC)(GLdouble c); +typedef void (GLAD_API_PTR *PFNGLINDEXDVPROC)(const GLdouble * c); +typedef void (GLAD_API_PTR *PFNGLINDEXFPROC)(GLfloat c); +typedef void (GLAD_API_PTR *PFNGLINDEXFVPROC)(const GLfloat * c); +typedef void (GLAD_API_PTR *PFNGLINDEXIPROC)(GLint c); +typedef void (GLAD_API_PTR *PFNGLINDEXIVPROC)(const GLint * c); +typedef void (GLAD_API_PTR *PFNGLINDEXSPROC)(GLshort c); +typedef void (GLAD_API_PTR *PFNGLINDEXSVPROC)(const GLshort * c); +typedef void (GLAD_API_PTR *PFNGLINDEXUBPROC)(GLubyte c); +typedef void (GLAD_API_PTR *PFNGLINDEXUBVPROC)(const GLubyte * c); +typedef void (GLAD_API_PTR *PFNGLINITNAMESPROC)(void); +typedef void (GLAD_API_PTR *PFNGLINTERLEAVEDARRAYSPROC)(GLenum format, GLsizei stride, const void * pointer); +typedef GLboolean (GLAD_API_PTR *PFNGLISBUFFERPROC)(GLuint buffer); +typedef GLboolean (GLAD_API_PTR *PFNGLISENABLEDPROC)(GLenum cap); +typedef GLboolean (GLAD_API_PTR *PFNGLISLISTPROC)(GLuint list); +typedef GLboolean (GLAD_API_PTR *PFNGLISPROGRAMPROC)(GLuint program); +typedef GLboolean (GLAD_API_PTR *PFNGLISQUERYPROC)(GLuint id); +typedef GLboolean (GLAD_API_PTR *PFNGLISSHADERPROC)(GLuint shader); +typedef GLboolean (GLAD_API_PTR *PFNGLISTEXTUREPROC)(GLuint texture); +typedef void (GLAD_API_PTR *PFNGLLIGHTMODELFPROC)(GLenum pname, GLfloat param); +typedef void (GLAD_API_PTR *PFNGLLIGHTMODELFVPROC)(GLenum pname, const GLfloat * params); +typedef void (GLAD_API_PTR *PFNGLLIGHTMODELIPROC)(GLenum pname, GLint param); +typedef void (GLAD_API_PTR *PFNGLLIGHTMODELIVPROC)(GLenum pname, const GLint * params); +typedef void (GLAD_API_PTR *PFNGLLIGHTFPROC)(GLenum light, GLenum pname, GLfloat param); +typedef void (GLAD_API_PTR *PFNGLLIGHTFVPROC)(GLenum light, GLenum pname, const GLfloat * params); +typedef void (GLAD_API_PTR *PFNGLLIGHTIPROC)(GLenum light, GLenum pname, GLint param); +typedef void (GLAD_API_PTR *PFNGLLIGHTIVPROC)(GLenum light, GLenum pname, const GLint * params); +typedef void (GLAD_API_PTR *PFNGLLINESTIPPLEPROC)(GLint factor, GLushort pattern); +typedef void (GLAD_API_PTR *PFNGLLINEWIDTHPROC)(GLfloat width); +typedef void (GLAD_API_PTR *PFNGLLINKPROGRAMPROC)(GLuint program); +typedef void (GLAD_API_PTR *PFNGLLISTBASEPROC)(GLuint base); +typedef void (GLAD_API_PTR *PFNGLLOADIDENTITYPROC)(void); +typedef void (GLAD_API_PTR *PFNGLLOADMATRIXDPROC)(const GLdouble * m); +typedef void (GLAD_API_PTR *PFNGLLOADMATRIXFPROC)(const GLfloat * m); +typedef void (GLAD_API_PTR *PFNGLLOADNAMEPROC)(GLuint name); +typedef void (GLAD_API_PTR *PFNGLLOADTRANSPOSEMATRIXDPROC)(const GLdouble * m); +typedef void (GLAD_API_PTR *PFNGLLOADTRANSPOSEMATRIXFPROC)(const GLfloat * m); +typedef void (GLAD_API_PTR *PFNGLLOGICOPPROC)(GLenum opcode); +typedef void (GLAD_API_PTR *PFNGLMAP1DPROC)(GLenum target, GLdouble u1, GLdouble u2, GLint stride, GLint order, const GLdouble * points); +typedef void (GLAD_API_PTR *PFNGLMAP1FPROC)(GLenum target, GLfloat u1, GLfloat u2, GLint stride, GLint order, const GLfloat * points); +typedef void (GLAD_API_PTR *PFNGLMAP2DPROC)(GLenum target, GLdouble u1, GLdouble u2, GLint ustride, GLint uorder, GLdouble v1, GLdouble v2, GLint vstride, GLint vorder, const GLdouble * points); +typedef void (GLAD_API_PTR *PFNGLMAP2FPROC)(GLenum target, GLfloat u1, GLfloat u2, GLint ustride, GLint uorder, GLfloat v1, GLfloat v2, GLint vstride, GLint vorder, const GLfloat * points); +typedef void * (GLAD_API_PTR *PFNGLMAPBUFFERPROC)(GLenum target, GLenum access); +typedef void (GLAD_API_PTR *PFNGLMAPGRID1DPROC)(GLint un, GLdouble u1, GLdouble u2); +typedef void (GLAD_API_PTR *PFNGLMAPGRID1FPROC)(GLint un, GLfloat u1, GLfloat u2); +typedef void (GLAD_API_PTR *PFNGLMAPGRID2DPROC)(GLint un, GLdouble u1, GLdouble u2, GLint vn, GLdouble v1, GLdouble v2); +typedef void (GLAD_API_PTR *PFNGLMAPGRID2FPROC)(GLint un, GLfloat u1, GLfloat u2, GLint vn, GLfloat v1, GLfloat v2); +typedef void (GLAD_API_PTR *PFNGLMATERIALFPROC)(GLenum face, GLenum pname, GLfloat param); +typedef void (GLAD_API_PTR *PFNGLMATERIALFVPROC)(GLenum face, GLenum pname, const GLfloat * params); +typedef void (GLAD_API_PTR *PFNGLMATERIALIPROC)(GLenum face, GLenum pname, GLint param); +typedef void (GLAD_API_PTR *PFNGLMATERIALIVPROC)(GLenum face, GLenum pname, const GLint * params); +typedef void (GLAD_API_PTR *PFNGLMATRIXMODEPROC)(GLenum mode); +typedef void (GLAD_API_PTR *PFNGLMULTMATRIXDPROC)(const GLdouble * m); +typedef void (GLAD_API_PTR *PFNGLMULTMATRIXFPROC)(const GLfloat * m); +typedef void (GLAD_API_PTR *PFNGLMULTTRANSPOSEMATRIXDPROC)(const GLdouble * m); +typedef void (GLAD_API_PTR *PFNGLMULTTRANSPOSEMATRIXFPROC)(const GLfloat * m); +typedef void (GLAD_API_PTR *PFNGLMULTIDRAWARRAYSPROC)(GLenum mode, const GLint * first, const GLsizei * count, GLsizei drawcount); +typedef void (GLAD_API_PTR *PFNGLMULTIDRAWELEMENTSPROC)(GLenum mode, const GLsizei * count, GLenum type, const void *const* indices, GLsizei drawcount); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD1DPROC)(GLenum target, GLdouble s); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD1DVPROC)(GLenum target, const GLdouble * v); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD1FPROC)(GLenum target, GLfloat s); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD1FVPROC)(GLenum target, const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD1IPROC)(GLenum target, GLint s); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD1IVPROC)(GLenum target, const GLint * v); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD1SPROC)(GLenum target, GLshort s); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD1SVPROC)(GLenum target, const GLshort * v); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD2DPROC)(GLenum target, GLdouble s, GLdouble t); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD2DVPROC)(GLenum target, const GLdouble * v); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD2FPROC)(GLenum target, GLfloat s, GLfloat t); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD2FVPROC)(GLenum target, const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD2IPROC)(GLenum target, GLint s, GLint t); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD2IVPROC)(GLenum target, const GLint * v); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD2SPROC)(GLenum target, GLshort s, GLshort t); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD2SVPROC)(GLenum target, const GLshort * v); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD3DPROC)(GLenum target, GLdouble s, GLdouble t, GLdouble r); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD3DVPROC)(GLenum target, const GLdouble * v); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD3FPROC)(GLenum target, GLfloat s, GLfloat t, GLfloat r); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD3FVPROC)(GLenum target, const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD3IPROC)(GLenum target, GLint s, GLint t, GLint r); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD3IVPROC)(GLenum target, const GLint * v); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD3SPROC)(GLenum target, GLshort s, GLshort t, GLshort r); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD3SVPROC)(GLenum target, const GLshort * v); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD4DPROC)(GLenum target, GLdouble s, GLdouble t, GLdouble r, GLdouble q); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD4DVPROC)(GLenum target, const GLdouble * v); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD4FPROC)(GLenum target, GLfloat s, GLfloat t, GLfloat r, GLfloat q); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD4FVPROC)(GLenum target, const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD4IPROC)(GLenum target, GLint s, GLint t, GLint r, GLint q); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD4IVPROC)(GLenum target, const GLint * v); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD4SPROC)(GLenum target, GLshort s, GLshort t, GLshort r, GLshort q); +typedef void (GLAD_API_PTR *PFNGLMULTITEXCOORD4SVPROC)(GLenum target, const GLshort * v); +typedef void (GLAD_API_PTR *PFNGLNEWLISTPROC)(GLuint list, GLenum mode); +typedef void (GLAD_API_PTR *PFNGLNORMAL3BPROC)(GLbyte nx, GLbyte ny, GLbyte nz); +typedef void (GLAD_API_PTR *PFNGLNORMAL3BVPROC)(const GLbyte * v); +typedef void (GLAD_API_PTR *PFNGLNORMAL3DPROC)(GLdouble nx, GLdouble ny, GLdouble nz); +typedef void (GLAD_API_PTR *PFNGLNORMAL3DVPROC)(const GLdouble * v); +typedef void (GLAD_API_PTR *PFNGLNORMAL3FPROC)(GLfloat nx, GLfloat ny, GLfloat nz); +typedef void (GLAD_API_PTR *PFNGLNORMAL3FVPROC)(const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLNORMAL3IPROC)(GLint nx, GLint ny, GLint nz); +typedef void (GLAD_API_PTR *PFNGLNORMAL3IVPROC)(const GLint * v); +typedef void (GLAD_API_PTR *PFNGLNORMAL3SPROC)(GLshort nx, GLshort ny, GLshort nz); +typedef void (GLAD_API_PTR *PFNGLNORMAL3SVPROC)(const GLshort * v); +typedef void (GLAD_API_PTR *PFNGLNORMALPOINTERPROC)(GLenum type, GLsizei stride, const void * pointer); +typedef void (GLAD_API_PTR *PFNGLORTHOPROC)(GLdouble left, GLdouble right, GLdouble bottom, GLdouble top, GLdouble zNear, GLdouble zFar); +typedef void (GLAD_API_PTR *PFNGLPASSTHROUGHPROC)(GLfloat token); +typedef void (GLAD_API_PTR *PFNGLPIXELMAPFVPROC)(GLenum map, GLsizei mapsize, const GLfloat * values); +typedef void (GLAD_API_PTR *PFNGLPIXELMAPUIVPROC)(GLenum map, GLsizei mapsize, const GLuint * values); +typedef void (GLAD_API_PTR *PFNGLPIXELMAPUSVPROC)(GLenum map, GLsizei mapsize, const GLushort * values); +typedef void (GLAD_API_PTR *PFNGLPIXELSTOREFPROC)(GLenum pname, GLfloat param); +typedef void (GLAD_API_PTR *PFNGLPIXELSTOREIPROC)(GLenum pname, GLint param); +typedef void (GLAD_API_PTR *PFNGLPIXELTRANSFERFPROC)(GLenum pname, GLfloat param); +typedef void (GLAD_API_PTR *PFNGLPIXELTRANSFERIPROC)(GLenum pname, GLint param); +typedef void (GLAD_API_PTR *PFNGLPIXELZOOMPROC)(GLfloat xfactor, GLfloat yfactor); +typedef void (GLAD_API_PTR *PFNGLPOINTPARAMETERFPROC)(GLenum pname, GLfloat param); +typedef void (GLAD_API_PTR *PFNGLPOINTPARAMETERFVPROC)(GLenum pname, const GLfloat * params); +typedef void (GLAD_API_PTR *PFNGLPOINTPARAMETERIPROC)(GLenum pname, GLint param); +typedef void (GLAD_API_PTR *PFNGLPOINTPARAMETERIVPROC)(GLenum pname, const GLint * params); +typedef void (GLAD_API_PTR *PFNGLPOINTSIZEPROC)(GLfloat size); +typedef void (GLAD_API_PTR *PFNGLPOLYGONMODEPROC)(GLenum face, GLenum mode); +typedef void (GLAD_API_PTR *PFNGLPOLYGONOFFSETPROC)(GLfloat factor, GLfloat units); +typedef void (GLAD_API_PTR *PFNGLPOLYGONSTIPPLEPROC)(const GLubyte * mask); +typedef void (GLAD_API_PTR *PFNGLPOPATTRIBPROC)(void); +typedef void (GLAD_API_PTR *PFNGLPOPCLIENTATTRIBPROC)(void); +typedef void (GLAD_API_PTR *PFNGLPOPMATRIXPROC)(void); +typedef void (GLAD_API_PTR *PFNGLPOPNAMEPROC)(void); +typedef void (GLAD_API_PTR *PFNGLPRIORITIZETEXTURESPROC)(GLsizei n, const GLuint * textures, const GLfloat * priorities); +typedef void (GLAD_API_PTR *PFNGLPUSHATTRIBPROC)(GLbitfield mask); +typedef void (GLAD_API_PTR *PFNGLPUSHCLIENTATTRIBPROC)(GLbitfield mask); +typedef void (GLAD_API_PTR *PFNGLPUSHMATRIXPROC)(void); +typedef void (GLAD_API_PTR *PFNGLPUSHNAMEPROC)(GLuint name); +typedef void (GLAD_API_PTR *PFNGLRASTERPOS2DPROC)(GLdouble x, GLdouble y); +typedef void (GLAD_API_PTR *PFNGLRASTERPOS2DVPROC)(const GLdouble * v); +typedef void (GLAD_API_PTR *PFNGLRASTERPOS2FPROC)(GLfloat x, GLfloat y); +typedef void (GLAD_API_PTR *PFNGLRASTERPOS2FVPROC)(const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLRASTERPOS2IPROC)(GLint x, GLint y); +typedef void (GLAD_API_PTR *PFNGLRASTERPOS2IVPROC)(const GLint * v); +typedef void (GLAD_API_PTR *PFNGLRASTERPOS2SPROC)(GLshort x, GLshort y); +typedef void (GLAD_API_PTR *PFNGLRASTERPOS2SVPROC)(const GLshort * v); +typedef void (GLAD_API_PTR *PFNGLRASTERPOS3DPROC)(GLdouble x, GLdouble y, GLdouble z); +typedef void (GLAD_API_PTR *PFNGLRASTERPOS3DVPROC)(const GLdouble * v); +typedef void (GLAD_API_PTR *PFNGLRASTERPOS3FPROC)(GLfloat x, GLfloat y, GLfloat z); +typedef void (GLAD_API_PTR *PFNGLRASTERPOS3FVPROC)(const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLRASTERPOS3IPROC)(GLint x, GLint y, GLint z); +typedef void (GLAD_API_PTR *PFNGLRASTERPOS3IVPROC)(const GLint * v); +typedef void (GLAD_API_PTR *PFNGLRASTERPOS3SPROC)(GLshort x, GLshort y, GLshort z); +typedef void (GLAD_API_PTR *PFNGLRASTERPOS3SVPROC)(const GLshort * v); +typedef void (GLAD_API_PTR *PFNGLRASTERPOS4DPROC)(GLdouble x, GLdouble y, GLdouble z, GLdouble w); +typedef void (GLAD_API_PTR *PFNGLRASTERPOS4DVPROC)(const GLdouble * v); +typedef void (GLAD_API_PTR *PFNGLRASTERPOS4FPROC)(GLfloat x, GLfloat y, GLfloat z, GLfloat w); +typedef void (GLAD_API_PTR *PFNGLRASTERPOS4FVPROC)(const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLRASTERPOS4IPROC)(GLint x, GLint y, GLint z, GLint w); +typedef void (GLAD_API_PTR *PFNGLRASTERPOS4IVPROC)(const GLint * v); +typedef void (GLAD_API_PTR *PFNGLRASTERPOS4SPROC)(GLshort x, GLshort y, GLshort z, GLshort w); +typedef void (GLAD_API_PTR *PFNGLRASTERPOS4SVPROC)(const GLshort * v); +typedef void (GLAD_API_PTR *PFNGLREADBUFFERPROC)(GLenum src); +typedef void (GLAD_API_PTR *PFNGLREADPIXELSPROC)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void * pixels); +typedef void (GLAD_API_PTR *PFNGLRECTDPROC)(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2); +typedef void (GLAD_API_PTR *PFNGLRECTDVPROC)(const GLdouble * v1, const GLdouble * v2); +typedef void (GLAD_API_PTR *PFNGLRECTFPROC)(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2); +typedef void (GLAD_API_PTR *PFNGLRECTFVPROC)(const GLfloat * v1, const GLfloat * v2); +typedef void (GLAD_API_PTR *PFNGLRECTIPROC)(GLint x1, GLint y1, GLint x2, GLint y2); +typedef void (GLAD_API_PTR *PFNGLRECTIVPROC)(const GLint * v1, const GLint * v2); +typedef void (GLAD_API_PTR *PFNGLRECTSPROC)(GLshort x1, GLshort y1, GLshort x2, GLshort y2); +typedef void (GLAD_API_PTR *PFNGLRECTSVPROC)(const GLshort * v1, const GLshort * v2); +typedef GLint (GLAD_API_PTR *PFNGLRENDERMODEPROC)(GLenum mode); +typedef void (GLAD_API_PTR *PFNGLROTATEDPROC)(GLdouble angle, GLdouble x, GLdouble y, GLdouble z); +typedef void (GLAD_API_PTR *PFNGLROTATEFPROC)(GLfloat angle, GLfloat x, GLfloat y, GLfloat z); +typedef void (GLAD_API_PTR *PFNGLSAMPLECOVERAGEPROC)(GLfloat value, GLboolean invert); +typedef void (GLAD_API_PTR *PFNGLSCALEDPROC)(GLdouble x, GLdouble y, GLdouble z); +typedef void (GLAD_API_PTR *PFNGLSCALEFPROC)(GLfloat x, GLfloat y, GLfloat z); +typedef void (GLAD_API_PTR *PFNGLSCISSORPROC)(GLint x, GLint y, GLsizei width, GLsizei height); +typedef void (GLAD_API_PTR *PFNGLSECONDARYCOLOR3BPROC)(GLbyte red, GLbyte green, GLbyte blue); +typedef void (GLAD_API_PTR *PFNGLSECONDARYCOLOR3BVPROC)(const GLbyte * v); +typedef void (GLAD_API_PTR *PFNGLSECONDARYCOLOR3DPROC)(GLdouble red, GLdouble green, GLdouble blue); +typedef void (GLAD_API_PTR *PFNGLSECONDARYCOLOR3DVPROC)(const GLdouble * v); +typedef void (GLAD_API_PTR *PFNGLSECONDARYCOLOR3FPROC)(GLfloat red, GLfloat green, GLfloat blue); +typedef void (GLAD_API_PTR *PFNGLSECONDARYCOLOR3FVPROC)(const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLSECONDARYCOLOR3IPROC)(GLint red, GLint green, GLint blue); +typedef void (GLAD_API_PTR *PFNGLSECONDARYCOLOR3IVPROC)(const GLint * v); +typedef void (GLAD_API_PTR *PFNGLSECONDARYCOLOR3SPROC)(GLshort red, GLshort green, GLshort blue); +typedef void (GLAD_API_PTR *PFNGLSECONDARYCOLOR3SVPROC)(const GLshort * v); +typedef void (GLAD_API_PTR *PFNGLSECONDARYCOLOR3UBPROC)(GLubyte red, GLubyte green, GLubyte blue); +typedef void (GLAD_API_PTR *PFNGLSECONDARYCOLOR3UBVPROC)(const GLubyte * v); +typedef void (GLAD_API_PTR *PFNGLSECONDARYCOLOR3UIPROC)(GLuint red, GLuint green, GLuint blue); +typedef void (GLAD_API_PTR *PFNGLSECONDARYCOLOR3UIVPROC)(const GLuint * v); +typedef void (GLAD_API_PTR *PFNGLSECONDARYCOLOR3USPROC)(GLushort red, GLushort green, GLushort blue); +typedef void (GLAD_API_PTR *PFNGLSECONDARYCOLOR3USVPROC)(const GLushort * v); +typedef void (GLAD_API_PTR *PFNGLSECONDARYCOLORPOINTERPROC)(GLint size, GLenum type, GLsizei stride, const void * pointer); +typedef void (GLAD_API_PTR *PFNGLSELECTBUFFERPROC)(GLsizei size, GLuint * buffer); +typedef void (GLAD_API_PTR *PFNGLSHADEMODELPROC)(GLenum mode); +typedef void (GLAD_API_PTR *PFNGLSHADERSOURCEPROC)(GLuint shader, GLsizei count, const GLchar *const* string, const GLint * length); +typedef void (GLAD_API_PTR *PFNGLSTENCILFUNCPROC)(GLenum func, GLint ref, GLuint mask); +typedef void (GLAD_API_PTR *PFNGLSTENCILFUNCSEPARATEPROC)(GLenum face, GLenum func, GLint ref, GLuint mask); +typedef void (GLAD_API_PTR *PFNGLSTENCILMASKPROC)(GLuint mask); +typedef void (GLAD_API_PTR *PFNGLSTENCILMASKSEPARATEPROC)(GLenum face, GLuint mask); +typedef void (GLAD_API_PTR *PFNGLSTENCILOPPROC)(GLenum fail, GLenum zfail, GLenum zpass); +typedef void (GLAD_API_PTR *PFNGLSTENCILOPSEPARATEPROC)(GLenum face, GLenum sfail, GLenum dpfail, GLenum dppass); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD1DPROC)(GLdouble s); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD1DVPROC)(const GLdouble * v); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD1FPROC)(GLfloat s); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD1FVPROC)(const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD1IPROC)(GLint s); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD1IVPROC)(const GLint * v); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD1SPROC)(GLshort s); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD1SVPROC)(const GLshort * v); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD2DPROC)(GLdouble s, GLdouble t); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD2DVPROC)(const GLdouble * v); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD2FPROC)(GLfloat s, GLfloat t); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD2FVPROC)(const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD2IPROC)(GLint s, GLint t); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD2IVPROC)(const GLint * v); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD2SPROC)(GLshort s, GLshort t); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD2SVPROC)(const GLshort * v); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD3DPROC)(GLdouble s, GLdouble t, GLdouble r); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD3DVPROC)(const GLdouble * v); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD3FPROC)(GLfloat s, GLfloat t, GLfloat r); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD3FVPROC)(const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD3IPROC)(GLint s, GLint t, GLint r); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD3IVPROC)(const GLint * v); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD3SPROC)(GLshort s, GLshort t, GLshort r); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD3SVPROC)(const GLshort * v); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD4DPROC)(GLdouble s, GLdouble t, GLdouble r, GLdouble q); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD4DVPROC)(const GLdouble * v); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD4FPROC)(GLfloat s, GLfloat t, GLfloat r, GLfloat q); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD4FVPROC)(const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD4IPROC)(GLint s, GLint t, GLint r, GLint q); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD4IVPROC)(const GLint * v); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD4SPROC)(GLshort s, GLshort t, GLshort r, GLshort q); +typedef void (GLAD_API_PTR *PFNGLTEXCOORD4SVPROC)(const GLshort * v); +typedef void (GLAD_API_PTR *PFNGLTEXCOORDPOINTERPROC)(GLint size, GLenum type, GLsizei stride, const void * pointer); +typedef void (GLAD_API_PTR *PFNGLTEXENVFPROC)(GLenum target, GLenum pname, GLfloat param); +typedef void (GLAD_API_PTR *PFNGLTEXENVFVPROC)(GLenum target, GLenum pname, const GLfloat * params); +typedef void (GLAD_API_PTR *PFNGLTEXENVIPROC)(GLenum target, GLenum pname, GLint param); +typedef void (GLAD_API_PTR *PFNGLTEXENVIVPROC)(GLenum target, GLenum pname, const GLint * params); +typedef void (GLAD_API_PTR *PFNGLTEXGENDPROC)(GLenum coord, GLenum pname, GLdouble param); +typedef void (GLAD_API_PTR *PFNGLTEXGENDVPROC)(GLenum coord, GLenum pname, const GLdouble * params); +typedef void (GLAD_API_PTR *PFNGLTEXGENFPROC)(GLenum coord, GLenum pname, GLfloat param); +typedef void (GLAD_API_PTR *PFNGLTEXGENFVPROC)(GLenum coord, GLenum pname, const GLfloat * params); +typedef void (GLAD_API_PTR *PFNGLTEXGENIPROC)(GLenum coord, GLenum pname, GLint param); +typedef void (GLAD_API_PTR *PFNGLTEXGENIVPROC)(GLenum coord, GLenum pname, const GLint * params); +typedef void (GLAD_API_PTR *PFNGLTEXIMAGE1DPROC)(GLenum target, GLint level, GLint internalformat, GLsizei width, GLint border, GLenum format, GLenum type, const void * pixels); +typedef void (GLAD_API_PTR *PFNGLTEXIMAGE2DPROC)(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void * pixels); +typedef void (GLAD_API_PTR *PFNGLTEXIMAGE3DPROC)(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const void * pixels); +typedef void (GLAD_API_PTR *PFNGLTEXPARAMETERFPROC)(GLenum target, GLenum pname, GLfloat param); +typedef void (GLAD_API_PTR *PFNGLTEXPARAMETERFVPROC)(GLenum target, GLenum pname, const GLfloat * params); +typedef void (GLAD_API_PTR *PFNGLTEXPARAMETERIPROC)(GLenum target, GLenum pname, GLint param); +typedef void (GLAD_API_PTR *PFNGLTEXPARAMETERIVPROC)(GLenum target, GLenum pname, const GLint * params); +typedef void (GLAD_API_PTR *PFNGLTEXSUBIMAGE1DPROC)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const void * pixels); +typedef void (GLAD_API_PTR *PFNGLTEXSUBIMAGE2DPROC)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void * pixels); +typedef void (GLAD_API_PTR *PFNGLTEXSUBIMAGE3DPROC)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void * pixels); +typedef void (GLAD_API_PTR *PFNGLTRANSLATEDPROC)(GLdouble x, GLdouble y, GLdouble z); +typedef void (GLAD_API_PTR *PFNGLTRANSLATEFPROC)(GLfloat x, GLfloat y, GLfloat z); +typedef void (GLAD_API_PTR *PFNGLUNIFORM1FPROC)(GLint location, GLfloat v0); +typedef void (GLAD_API_PTR *PFNGLUNIFORM1FVPROC)(GLint location, GLsizei count, const GLfloat * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORM1IPROC)(GLint location, GLint v0); +typedef void (GLAD_API_PTR *PFNGLUNIFORM1IVPROC)(GLint location, GLsizei count, const GLint * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORM2FPROC)(GLint location, GLfloat v0, GLfloat v1); +typedef void (GLAD_API_PTR *PFNGLUNIFORM2FVPROC)(GLint location, GLsizei count, const GLfloat * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORM2IPROC)(GLint location, GLint v0, GLint v1); +typedef void (GLAD_API_PTR *PFNGLUNIFORM2IVPROC)(GLint location, GLsizei count, const GLint * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORM3FPROC)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2); +typedef void (GLAD_API_PTR *PFNGLUNIFORM3FVPROC)(GLint location, GLsizei count, const GLfloat * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORM3IPROC)(GLint location, GLint v0, GLint v1, GLint v2); +typedef void (GLAD_API_PTR *PFNGLUNIFORM3IVPROC)(GLint location, GLsizei count, const GLint * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORM4FPROC)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3); +typedef void (GLAD_API_PTR *PFNGLUNIFORM4FVPROC)(GLint location, GLsizei count, const GLfloat * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORM4IPROC)(GLint location, GLint v0, GLint v1, GLint v2, GLint v3); +typedef void (GLAD_API_PTR *PFNGLUNIFORM4IVPROC)(GLint location, GLsizei count, const GLint * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORMMATRIX2FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORMMATRIX2X3FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORMMATRIX2X4FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORMMATRIX3FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORMMATRIX3X2FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORMMATRIX3X4FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORMMATRIX4FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORMMATRIX4X2FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat * value); +typedef void (GLAD_API_PTR *PFNGLUNIFORMMATRIX4X3FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat * value); +typedef GLboolean (GLAD_API_PTR *PFNGLUNMAPBUFFERPROC)(GLenum target); +typedef void (GLAD_API_PTR *PFNGLUSEPROGRAMPROC)(GLuint program); +typedef void (GLAD_API_PTR *PFNGLVALIDATEPROGRAMPROC)(GLuint program); +typedef void (GLAD_API_PTR *PFNGLVERTEX2DPROC)(GLdouble x, GLdouble y); +typedef void (GLAD_API_PTR *PFNGLVERTEX2DVPROC)(const GLdouble * v); +typedef void (GLAD_API_PTR *PFNGLVERTEX2FPROC)(GLfloat x, GLfloat y); +typedef void (GLAD_API_PTR *PFNGLVERTEX2FVPROC)(const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLVERTEX2IPROC)(GLint x, GLint y); +typedef void (GLAD_API_PTR *PFNGLVERTEX2IVPROC)(const GLint * v); +typedef void (GLAD_API_PTR *PFNGLVERTEX2SPROC)(GLshort x, GLshort y); +typedef void (GLAD_API_PTR *PFNGLVERTEX2SVPROC)(const GLshort * v); +typedef void (GLAD_API_PTR *PFNGLVERTEX3DPROC)(GLdouble x, GLdouble y, GLdouble z); +typedef void (GLAD_API_PTR *PFNGLVERTEX3DVPROC)(const GLdouble * v); +typedef void (GLAD_API_PTR *PFNGLVERTEX3FPROC)(GLfloat x, GLfloat y, GLfloat z); +typedef void (GLAD_API_PTR *PFNGLVERTEX3FVPROC)(const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLVERTEX3IPROC)(GLint x, GLint y, GLint z); +typedef void (GLAD_API_PTR *PFNGLVERTEX3IVPROC)(const GLint * v); +typedef void (GLAD_API_PTR *PFNGLVERTEX3SPROC)(GLshort x, GLshort y, GLshort z); +typedef void (GLAD_API_PTR *PFNGLVERTEX3SVPROC)(const GLshort * v); +typedef void (GLAD_API_PTR *PFNGLVERTEX4DPROC)(GLdouble x, GLdouble y, GLdouble z, GLdouble w); +typedef void (GLAD_API_PTR *PFNGLVERTEX4DVPROC)(const GLdouble * v); +typedef void (GLAD_API_PTR *PFNGLVERTEX4FPROC)(GLfloat x, GLfloat y, GLfloat z, GLfloat w); +typedef void (GLAD_API_PTR *PFNGLVERTEX4FVPROC)(const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLVERTEX4IPROC)(GLint x, GLint y, GLint z, GLint w); +typedef void (GLAD_API_PTR *PFNGLVERTEX4IVPROC)(const GLint * v); +typedef void (GLAD_API_PTR *PFNGLVERTEX4SPROC)(GLshort x, GLshort y, GLshort z, GLshort w); +typedef void (GLAD_API_PTR *PFNGLVERTEX4SVPROC)(const GLshort * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB1DPROC)(GLuint index, GLdouble x); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB1DVPROC)(GLuint index, const GLdouble * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB1FPROC)(GLuint index, GLfloat x); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB1FVPROC)(GLuint index, const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB1SPROC)(GLuint index, GLshort x); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB1SVPROC)(GLuint index, const GLshort * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB2DPROC)(GLuint index, GLdouble x, GLdouble y); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB2DVPROC)(GLuint index, const GLdouble * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB2FPROC)(GLuint index, GLfloat x, GLfloat y); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB2FVPROC)(GLuint index, const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB2SPROC)(GLuint index, GLshort x, GLshort y); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB2SVPROC)(GLuint index, const GLshort * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB3DPROC)(GLuint index, GLdouble x, GLdouble y, GLdouble z); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB3DVPROC)(GLuint index, const GLdouble * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB3FPROC)(GLuint index, GLfloat x, GLfloat y, GLfloat z); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB3FVPROC)(GLuint index, const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB3SPROC)(GLuint index, GLshort x, GLshort y, GLshort z); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB3SVPROC)(GLuint index, const GLshort * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB4NBVPROC)(GLuint index, const GLbyte * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB4NIVPROC)(GLuint index, const GLint * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB4NSVPROC)(GLuint index, const GLshort * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB4NUBPROC)(GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB4NUBVPROC)(GLuint index, const GLubyte * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB4NUIVPROC)(GLuint index, const GLuint * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB4NUSVPROC)(GLuint index, const GLushort * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB4BVPROC)(GLuint index, const GLbyte * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB4DPROC)(GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB4DVPROC)(GLuint index, const GLdouble * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB4FPROC)(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB4FVPROC)(GLuint index, const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB4IVPROC)(GLuint index, const GLint * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB4SPROC)(GLuint index, GLshort x, GLshort y, GLshort z, GLshort w); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB4SVPROC)(GLuint index, const GLshort * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB4UBVPROC)(GLuint index, const GLubyte * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB4UIVPROC)(GLuint index, const GLuint * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIB4USVPROC)(GLuint index, const GLushort * v); +typedef void (GLAD_API_PTR *PFNGLVERTEXATTRIBPOINTERPROC)(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void * pointer); +typedef void (GLAD_API_PTR *PFNGLVERTEXPOINTERPROC)(GLint size, GLenum type, GLsizei stride, const void * pointer); +typedef void (GLAD_API_PTR *PFNGLVIEWPORTPROC)(GLint x, GLint y, GLsizei width, GLsizei height); +typedef void (GLAD_API_PTR *PFNGLWINDOWPOS2DPROC)(GLdouble x, GLdouble y); +typedef void (GLAD_API_PTR *PFNGLWINDOWPOS2DVPROC)(const GLdouble * v); +typedef void (GLAD_API_PTR *PFNGLWINDOWPOS2FPROC)(GLfloat x, GLfloat y); +typedef void (GLAD_API_PTR *PFNGLWINDOWPOS2FVPROC)(const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLWINDOWPOS2IPROC)(GLint x, GLint y); +typedef void (GLAD_API_PTR *PFNGLWINDOWPOS2IVPROC)(const GLint * v); +typedef void (GLAD_API_PTR *PFNGLWINDOWPOS2SPROC)(GLshort x, GLshort y); +typedef void (GLAD_API_PTR *PFNGLWINDOWPOS2SVPROC)(const GLshort * v); +typedef void (GLAD_API_PTR *PFNGLWINDOWPOS3DPROC)(GLdouble x, GLdouble y, GLdouble z); +typedef void (GLAD_API_PTR *PFNGLWINDOWPOS3DVPROC)(const GLdouble * v); +typedef void (GLAD_API_PTR *PFNGLWINDOWPOS3FPROC)(GLfloat x, GLfloat y, GLfloat z); +typedef void (GLAD_API_PTR *PFNGLWINDOWPOS3FVPROC)(const GLfloat * v); +typedef void (GLAD_API_PTR *PFNGLWINDOWPOS3IPROC)(GLint x, GLint y, GLint z); +typedef void (GLAD_API_PTR *PFNGLWINDOWPOS3IVPROC)(const GLint * v); +typedef void (GLAD_API_PTR *PFNGLWINDOWPOS3SPROC)(GLshort x, GLshort y, GLshort z); +typedef void (GLAD_API_PTR *PFNGLWINDOWPOS3SVPROC)(const GLshort * v); + +GLAD_API_CALL PFNGLACCUMPROC glad_glAccum; +#define glAccum glad_glAccum +GLAD_API_CALL PFNGLACTIVETEXTUREPROC glad_glActiveTexture; +#define glActiveTexture glad_glActiveTexture +GLAD_API_CALL PFNGLALPHAFUNCPROC glad_glAlphaFunc; +#define glAlphaFunc glad_glAlphaFunc +GLAD_API_CALL PFNGLARETEXTURESRESIDENTPROC glad_glAreTexturesResident; +#define glAreTexturesResident glad_glAreTexturesResident +GLAD_API_CALL PFNGLARRAYELEMENTPROC glad_glArrayElement; +#define glArrayElement glad_glArrayElement +GLAD_API_CALL PFNGLATTACHSHADERPROC glad_glAttachShader; +#define glAttachShader glad_glAttachShader +GLAD_API_CALL PFNGLBEGINPROC glad_glBegin; +#define glBegin glad_glBegin +GLAD_API_CALL PFNGLBEGINQUERYPROC glad_glBeginQuery; +#define glBeginQuery glad_glBeginQuery +GLAD_API_CALL PFNGLBINDATTRIBLOCATIONPROC glad_glBindAttribLocation; +#define glBindAttribLocation glad_glBindAttribLocation +GLAD_API_CALL PFNGLBINDBUFFERPROC glad_glBindBuffer; +#define glBindBuffer glad_glBindBuffer +GLAD_API_CALL PFNGLBINDTEXTUREPROC glad_glBindTexture; +#define glBindTexture glad_glBindTexture +GLAD_API_CALL PFNGLBITMAPPROC glad_glBitmap; +#define glBitmap glad_glBitmap +GLAD_API_CALL PFNGLBLENDCOLORPROC glad_glBlendColor; +#define glBlendColor glad_glBlendColor +GLAD_API_CALL PFNGLBLENDEQUATIONPROC glad_glBlendEquation; +#define glBlendEquation glad_glBlendEquation +GLAD_API_CALL PFNGLBLENDEQUATIONSEPARATEPROC glad_glBlendEquationSeparate; +#define glBlendEquationSeparate glad_glBlendEquationSeparate +GLAD_API_CALL PFNGLBLENDFUNCPROC glad_glBlendFunc; +#define glBlendFunc glad_glBlendFunc +GLAD_API_CALL PFNGLBLENDFUNCSEPARATEPROC glad_glBlendFuncSeparate; +#define glBlendFuncSeparate glad_glBlendFuncSeparate +GLAD_API_CALL PFNGLBUFFERDATAPROC glad_glBufferData; +#define glBufferData glad_glBufferData +GLAD_API_CALL PFNGLBUFFERSUBDATAPROC glad_glBufferSubData; +#define glBufferSubData glad_glBufferSubData +GLAD_API_CALL PFNGLCALLLISTPROC glad_glCallList; +#define glCallList glad_glCallList +GLAD_API_CALL PFNGLCALLLISTSPROC glad_glCallLists; +#define glCallLists glad_glCallLists +GLAD_API_CALL PFNGLCLEARPROC glad_glClear; +#define glClear glad_glClear +GLAD_API_CALL PFNGLCLEARACCUMPROC glad_glClearAccum; +#define glClearAccum glad_glClearAccum +GLAD_API_CALL PFNGLCLEARCOLORPROC glad_glClearColor; +#define glClearColor glad_glClearColor +GLAD_API_CALL PFNGLCLEARDEPTHPROC glad_glClearDepth; +#define glClearDepth glad_glClearDepth +GLAD_API_CALL PFNGLCLEARINDEXPROC glad_glClearIndex; +#define glClearIndex glad_glClearIndex +GLAD_API_CALL PFNGLCLEARSTENCILPROC glad_glClearStencil; +#define glClearStencil glad_glClearStencil +GLAD_API_CALL PFNGLCLIENTACTIVETEXTUREPROC glad_glClientActiveTexture; +#define glClientActiveTexture glad_glClientActiveTexture +GLAD_API_CALL PFNGLCLIPPLANEPROC glad_glClipPlane; +#define glClipPlane glad_glClipPlane +GLAD_API_CALL PFNGLCOLOR3BPROC glad_glColor3b; +#define glColor3b glad_glColor3b +GLAD_API_CALL PFNGLCOLOR3BVPROC glad_glColor3bv; +#define glColor3bv glad_glColor3bv +GLAD_API_CALL PFNGLCOLOR3DPROC glad_glColor3d; +#define glColor3d glad_glColor3d +GLAD_API_CALL PFNGLCOLOR3DVPROC glad_glColor3dv; +#define glColor3dv glad_glColor3dv +GLAD_API_CALL PFNGLCOLOR3FPROC glad_glColor3f; +#define glColor3f glad_glColor3f +GLAD_API_CALL PFNGLCOLOR3FVPROC glad_glColor3fv; +#define glColor3fv glad_glColor3fv +GLAD_API_CALL PFNGLCOLOR3IPROC glad_glColor3i; +#define glColor3i glad_glColor3i +GLAD_API_CALL PFNGLCOLOR3IVPROC glad_glColor3iv; +#define glColor3iv glad_glColor3iv +GLAD_API_CALL PFNGLCOLOR3SPROC glad_glColor3s; +#define glColor3s glad_glColor3s +GLAD_API_CALL PFNGLCOLOR3SVPROC glad_glColor3sv; +#define glColor3sv glad_glColor3sv +GLAD_API_CALL PFNGLCOLOR3UBPROC glad_glColor3ub; +#define glColor3ub glad_glColor3ub +GLAD_API_CALL PFNGLCOLOR3UBVPROC glad_glColor3ubv; +#define glColor3ubv glad_glColor3ubv +GLAD_API_CALL PFNGLCOLOR3UIPROC glad_glColor3ui; +#define glColor3ui glad_glColor3ui +GLAD_API_CALL PFNGLCOLOR3UIVPROC glad_glColor3uiv; +#define glColor3uiv glad_glColor3uiv +GLAD_API_CALL PFNGLCOLOR3USPROC glad_glColor3us; +#define glColor3us glad_glColor3us +GLAD_API_CALL PFNGLCOLOR3USVPROC glad_glColor3usv; +#define glColor3usv glad_glColor3usv +GLAD_API_CALL PFNGLCOLOR4BPROC glad_glColor4b; +#define glColor4b glad_glColor4b +GLAD_API_CALL PFNGLCOLOR4BVPROC glad_glColor4bv; +#define glColor4bv glad_glColor4bv +GLAD_API_CALL PFNGLCOLOR4DPROC glad_glColor4d; +#define glColor4d glad_glColor4d +GLAD_API_CALL PFNGLCOLOR4DVPROC glad_glColor4dv; +#define glColor4dv glad_glColor4dv +GLAD_API_CALL PFNGLCOLOR4FPROC glad_glColor4f; +#define glColor4f glad_glColor4f +GLAD_API_CALL PFNGLCOLOR4FVPROC glad_glColor4fv; +#define glColor4fv glad_glColor4fv +GLAD_API_CALL PFNGLCOLOR4IPROC glad_glColor4i; +#define glColor4i glad_glColor4i +GLAD_API_CALL PFNGLCOLOR4IVPROC glad_glColor4iv; +#define glColor4iv glad_glColor4iv +GLAD_API_CALL PFNGLCOLOR4SPROC glad_glColor4s; +#define glColor4s glad_glColor4s +GLAD_API_CALL PFNGLCOLOR4SVPROC glad_glColor4sv; +#define glColor4sv glad_glColor4sv +GLAD_API_CALL PFNGLCOLOR4UBPROC glad_glColor4ub; +#define glColor4ub glad_glColor4ub +GLAD_API_CALL PFNGLCOLOR4UBVPROC glad_glColor4ubv; +#define glColor4ubv glad_glColor4ubv +GLAD_API_CALL PFNGLCOLOR4UIPROC glad_glColor4ui; +#define glColor4ui glad_glColor4ui +GLAD_API_CALL PFNGLCOLOR4UIVPROC glad_glColor4uiv; +#define glColor4uiv glad_glColor4uiv +GLAD_API_CALL PFNGLCOLOR4USPROC glad_glColor4us; +#define glColor4us glad_glColor4us +GLAD_API_CALL PFNGLCOLOR4USVPROC glad_glColor4usv; +#define glColor4usv glad_glColor4usv +GLAD_API_CALL PFNGLCOLORMASKPROC glad_glColorMask; +#define glColorMask glad_glColorMask +GLAD_API_CALL PFNGLCOLORMATERIALPROC glad_glColorMaterial; +#define glColorMaterial glad_glColorMaterial +GLAD_API_CALL PFNGLCOLORPOINTERPROC glad_glColorPointer; +#define glColorPointer glad_glColorPointer +GLAD_API_CALL PFNGLCOMPILESHADERPROC glad_glCompileShader; +#define glCompileShader glad_glCompileShader +GLAD_API_CALL PFNGLCOMPRESSEDTEXIMAGE1DPROC glad_glCompressedTexImage1D; +#define glCompressedTexImage1D glad_glCompressedTexImage1D +GLAD_API_CALL PFNGLCOMPRESSEDTEXIMAGE2DPROC glad_glCompressedTexImage2D; +#define glCompressedTexImage2D glad_glCompressedTexImage2D +GLAD_API_CALL PFNGLCOMPRESSEDTEXIMAGE3DPROC glad_glCompressedTexImage3D; +#define glCompressedTexImage3D glad_glCompressedTexImage3D +GLAD_API_CALL PFNGLCOMPRESSEDTEXSUBIMAGE1DPROC glad_glCompressedTexSubImage1D; +#define glCompressedTexSubImage1D glad_glCompressedTexSubImage1D +GLAD_API_CALL PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC glad_glCompressedTexSubImage2D; +#define glCompressedTexSubImage2D glad_glCompressedTexSubImage2D +GLAD_API_CALL PFNGLCOMPRESSEDTEXSUBIMAGE3DPROC glad_glCompressedTexSubImage3D; +#define glCompressedTexSubImage3D glad_glCompressedTexSubImage3D +GLAD_API_CALL PFNGLCOPYPIXELSPROC glad_glCopyPixels; +#define glCopyPixels glad_glCopyPixels +GLAD_API_CALL PFNGLCOPYTEXIMAGE1DPROC glad_glCopyTexImage1D; +#define glCopyTexImage1D glad_glCopyTexImage1D +GLAD_API_CALL PFNGLCOPYTEXIMAGE2DPROC glad_glCopyTexImage2D; +#define glCopyTexImage2D glad_glCopyTexImage2D +GLAD_API_CALL PFNGLCOPYTEXSUBIMAGE1DPROC glad_glCopyTexSubImage1D; +#define glCopyTexSubImage1D glad_glCopyTexSubImage1D +GLAD_API_CALL PFNGLCOPYTEXSUBIMAGE2DPROC glad_glCopyTexSubImage2D; +#define glCopyTexSubImage2D glad_glCopyTexSubImage2D +GLAD_API_CALL PFNGLCOPYTEXSUBIMAGE3DPROC glad_glCopyTexSubImage3D; +#define glCopyTexSubImage3D glad_glCopyTexSubImage3D +GLAD_API_CALL PFNGLCREATEPROGRAMPROC glad_glCreateProgram; +#define glCreateProgram glad_glCreateProgram +GLAD_API_CALL PFNGLCREATESHADERPROC glad_glCreateShader; +#define glCreateShader glad_glCreateShader +GLAD_API_CALL PFNGLCULLFACEPROC glad_glCullFace; +#define glCullFace glad_glCullFace +GLAD_API_CALL PFNGLDELETEBUFFERSPROC glad_glDeleteBuffers; +#define glDeleteBuffers glad_glDeleteBuffers +GLAD_API_CALL PFNGLDELETELISTSPROC glad_glDeleteLists; +#define glDeleteLists glad_glDeleteLists +GLAD_API_CALL PFNGLDELETEPROGRAMPROC glad_glDeleteProgram; +#define glDeleteProgram glad_glDeleteProgram +GLAD_API_CALL PFNGLDELETEQUERIESPROC glad_glDeleteQueries; +#define glDeleteQueries glad_glDeleteQueries +GLAD_API_CALL PFNGLDELETESHADERPROC glad_glDeleteShader; +#define glDeleteShader glad_glDeleteShader +GLAD_API_CALL PFNGLDELETETEXTURESPROC glad_glDeleteTextures; +#define glDeleteTextures glad_glDeleteTextures +GLAD_API_CALL PFNGLDEPTHFUNCPROC glad_glDepthFunc; +#define glDepthFunc glad_glDepthFunc +GLAD_API_CALL PFNGLDEPTHMASKPROC glad_glDepthMask; +#define glDepthMask glad_glDepthMask +GLAD_API_CALL PFNGLDEPTHRANGEPROC glad_glDepthRange; +#define glDepthRange glad_glDepthRange +GLAD_API_CALL PFNGLDETACHSHADERPROC glad_glDetachShader; +#define glDetachShader glad_glDetachShader +GLAD_API_CALL PFNGLDISABLEPROC glad_glDisable; +#define glDisable glad_glDisable +GLAD_API_CALL PFNGLDISABLECLIENTSTATEPROC glad_glDisableClientState; +#define glDisableClientState glad_glDisableClientState +GLAD_API_CALL PFNGLDISABLEVERTEXATTRIBARRAYPROC glad_glDisableVertexAttribArray; +#define glDisableVertexAttribArray glad_glDisableVertexAttribArray +GLAD_API_CALL PFNGLDRAWARRAYSPROC glad_glDrawArrays; +#define glDrawArrays glad_glDrawArrays +GLAD_API_CALL PFNGLDRAWBUFFERPROC glad_glDrawBuffer; +#define glDrawBuffer glad_glDrawBuffer +GLAD_API_CALL PFNGLDRAWBUFFERSPROC glad_glDrawBuffers; +#define glDrawBuffers glad_glDrawBuffers +GLAD_API_CALL PFNGLDRAWELEMENTSPROC glad_glDrawElements; +#define glDrawElements glad_glDrawElements +GLAD_API_CALL PFNGLDRAWPIXELSPROC glad_glDrawPixels; +#define glDrawPixels glad_glDrawPixels +GLAD_API_CALL PFNGLDRAWRANGEELEMENTSPROC glad_glDrawRangeElements; +#define glDrawRangeElements glad_glDrawRangeElements +GLAD_API_CALL PFNGLEDGEFLAGPROC glad_glEdgeFlag; +#define glEdgeFlag glad_glEdgeFlag +GLAD_API_CALL PFNGLEDGEFLAGPOINTERPROC glad_glEdgeFlagPointer; +#define glEdgeFlagPointer glad_glEdgeFlagPointer +GLAD_API_CALL PFNGLEDGEFLAGVPROC glad_glEdgeFlagv; +#define glEdgeFlagv glad_glEdgeFlagv +GLAD_API_CALL PFNGLENABLEPROC glad_glEnable; +#define glEnable glad_glEnable +GLAD_API_CALL PFNGLENABLECLIENTSTATEPROC glad_glEnableClientState; +#define glEnableClientState glad_glEnableClientState +GLAD_API_CALL PFNGLENABLEVERTEXATTRIBARRAYPROC glad_glEnableVertexAttribArray; +#define glEnableVertexAttribArray glad_glEnableVertexAttribArray +GLAD_API_CALL PFNGLENDPROC glad_glEnd; +#define glEnd glad_glEnd +GLAD_API_CALL PFNGLENDLISTPROC glad_glEndList; +#define glEndList glad_glEndList +GLAD_API_CALL PFNGLENDQUERYPROC glad_glEndQuery; +#define glEndQuery glad_glEndQuery +GLAD_API_CALL PFNGLEVALCOORD1DPROC glad_glEvalCoord1d; +#define glEvalCoord1d glad_glEvalCoord1d +GLAD_API_CALL PFNGLEVALCOORD1DVPROC glad_glEvalCoord1dv; +#define glEvalCoord1dv glad_glEvalCoord1dv +GLAD_API_CALL PFNGLEVALCOORD1FPROC glad_glEvalCoord1f; +#define glEvalCoord1f glad_glEvalCoord1f +GLAD_API_CALL PFNGLEVALCOORD1FVPROC glad_glEvalCoord1fv; +#define glEvalCoord1fv glad_glEvalCoord1fv +GLAD_API_CALL PFNGLEVALCOORD2DPROC glad_glEvalCoord2d; +#define glEvalCoord2d glad_glEvalCoord2d +GLAD_API_CALL PFNGLEVALCOORD2DVPROC glad_glEvalCoord2dv; +#define glEvalCoord2dv glad_glEvalCoord2dv +GLAD_API_CALL PFNGLEVALCOORD2FPROC glad_glEvalCoord2f; +#define glEvalCoord2f glad_glEvalCoord2f +GLAD_API_CALL PFNGLEVALCOORD2FVPROC glad_glEvalCoord2fv; +#define glEvalCoord2fv glad_glEvalCoord2fv +GLAD_API_CALL PFNGLEVALMESH1PROC glad_glEvalMesh1; +#define glEvalMesh1 glad_glEvalMesh1 +GLAD_API_CALL PFNGLEVALMESH2PROC glad_glEvalMesh2; +#define glEvalMesh2 glad_glEvalMesh2 +GLAD_API_CALL PFNGLEVALPOINT1PROC glad_glEvalPoint1; +#define glEvalPoint1 glad_glEvalPoint1 +GLAD_API_CALL PFNGLEVALPOINT2PROC glad_glEvalPoint2; +#define glEvalPoint2 glad_glEvalPoint2 +GLAD_API_CALL PFNGLFEEDBACKBUFFERPROC glad_glFeedbackBuffer; +#define glFeedbackBuffer glad_glFeedbackBuffer +GLAD_API_CALL PFNGLFINISHPROC glad_glFinish; +#define glFinish glad_glFinish +GLAD_API_CALL PFNGLFLUSHPROC glad_glFlush; +#define glFlush glad_glFlush +GLAD_API_CALL PFNGLFOGCOORDPOINTERPROC glad_glFogCoordPointer; +#define glFogCoordPointer glad_glFogCoordPointer +GLAD_API_CALL PFNGLFOGCOORDDPROC glad_glFogCoordd; +#define glFogCoordd glad_glFogCoordd +GLAD_API_CALL PFNGLFOGCOORDDVPROC glad_glFogCoorddv; +#define glFogCoorddv glad_glFogCoorddv +GLAD_API_CALL PFNGLFOGCOORDFPROC glad_glFogCoordf; +#define glFogCoordf glad_glFogCoordf +GLAD_API_CALL PFNGLFOGCOORDFVPROC glad_glFogCoordfv; +#define glFogCoordfv glad_glFogCoordfv +GLAD_API_CALL PFNGLFOGFPROC glad_glFogf; +#define glFogf glad_glFogf +GLAD_API_CALL PFNGLFOGFVPROC glad_glFogfv; +#define glFogfv glad_glFogfv +GLAD_API_CALL PFNGLFOGIPROC glad_glFogi; +#define glFogi glad_glFogi +GLAD_API_CALL PFNGLFOGIVPROC glad_glFogiv; +#define glFogiv glad_glFogiv +GLAD_API_CALL PFNGLFRONTFACEPROC glad_glFrontFace; +#define glFrontFace glad_glFrontFace +GLAD_API_CALL PFNGLFRUSTUMPROC glad_glFrustum; +#define glFrustum glad_glFrustum +GLAD_API_CALL PFNGLGENBUFFERSPROC glad_glGenBuffers; +#define glGenBuffers glad_glGenBuffers +GLAD_API_CALL PFNGLGENLISTSPROC glad_glGenLists; +#define glGenLists glad_glGenLists +GLAD_API_CALL PFNGLGENQUERIESPROC glad_glGenQueries; +#define glGenQueries glad_glGenQueries +GLAD_API_CALL PFNGLGENTEXTURESPROC glad_glGenTextures; +#define glGenTextures glad_glGenTextures +GLAD_API_CALL PFNGLGETACTIVEATTRIBPROC glad_glGetActiveAttrib; +#define glGetActiveAttrib glad_glGetActiveAttrib +GLAD_API_CALL PFNGLGETACTIVEUNIFORMPROC glad_glGetActiveUniform; +#define glGetActiveUniform glad_glGetActiveUniform +GLAD_API_CALL PFNGLGETATTACHEDSHADERSPROC glad_glGetAttachedShaders; +#define glGetAttachedShaders glad_glGetAttachedShaders +GLAD_API_CALL PFNGLGETATTRIBLOCATIONPROC glad_glGetAttribLocation; +#define glGetAttribLocation glad_glGetAttribLocation +GLAD_API_CALL PFNGLGETBOOLEANVPROC glad_glGetBooleanv; +#define glGetBooleanv glad_glGetBooleanv +GLAD_API_CALL PFNGLGETBUFFERPARAMETERIVPROC glad_glGetBufferParameteriv; +#define glGetBufferParameteriv glad_glGetBufferParameteriv +GLAD_API_CALL PFNGLGETBUFFERPOINTERVPROC glad_glGetBufferPointerv; +#define glGetBufferPointerv glad_glGetBufferPointerv +GLAD_API_CALL PFNGLGETBUFFERSUBDATAPROC glad_glGetBufferSubData; +#define glGetBufferSubData glad_glGetBufferSubData +GLAD_API_CALL PFNGLGETCLIPPLANEPROC glad_glGetClipPlane; +#define glGetClipPlane glad_glGetClipPlane +GLAD_API_CALL PFNGLGETCOMPRESSEDTEXIMAGEPROC glad_glGetCompressedTexImage; +#define glGetCompressedTexImage glad_glGetCompressedTexImage +GLAD_API_CALL PFNGLGETDOUBLEVPROC glad_glGetDoublev; +#define glGetDoublev glad_glGetDoublev +GLAD_API_CALL PFNGLGETERRORPROC glad_glGetError; +#define glGetError glad_glGetError +GLAD_API_CALL PFNGLGETFLOATVPROC glad_glGetFloatv; +#define glGetFloatv glad_glGetFloatv +GLAD_API_CALL PFNGLGETINTEGERVPROC glad_glGetIntegerv; +#define glGetIntegerv glad_glGetIntegerv +GLAD_API_CALL PFNGLGETLIGHTFVPROC glad_glGetLightfv; +#define glGetLightfv glad_glGetLightfv +GLAD_API_CALL PFNGLGETLIGHTIVPROC glad_glGetLightiv; +#define glGetLightiv glad_glGetLightiv +GLAD_API_CALL PFNGLGETMAPDVPROC glad_glGetMapdv; +#define glGetMapdv glad_glGetMapdv +GLAD_API_CALL PFNGLGETMAPFVPROC glad_glGetMapfv; +#define glGetMapfv glad_glGetMapfv +GLAD_API_CALL PFNGLGETMAPIVPROC glad_glGetMapiv; +#define glGetMapiv glad_glGetMapiv +GLAD_API_CALL PFNGLGETMATERIALFVPROC glad_glGetMaterialfv; +#define glGetMaterialfv glad_glGetMaterialfv +GLAD_API_CALL PFNGLGETMATERIALIVPROC glad_glGetMaterialiv; +#define glGetMaterialiv glad_glGetMaterialiv +GLAD_API_CALL PFNGLGETPIXELMAPFVPROC glad_glGetPixelMapfv; +#define glGetPixelMapfv glad_glGetPixelMapfv +GLAD_API_CALL PFNGLGETPIXELMAPUIVPROC glad_glGetPixelMapuiv; +#define glGetPixelMapuiv glad_glGetPixelMapuiv +GLAD_API_CALL PFNGLGETPIXELMAPUSVPROC glad_glGetPixelMapusv; +#define glGetPixelMapusv glad_glGetPixelMapusv +GLAD_API_CALL PFNGLGETPOINTERVPROC glad_glGetPointerv; +#define glGetPointerv glad_glGetPointerv +GLAD_API_CALL PFNGLGETPOLYGONSTIPPLEPROC glad_glGetPolygonStipple; +#define glGetPolygonStipple glad_glGetPolygonStipple +GLAD_API_CALL PFNGLGETPROGRAMINFOLOGPROC glad_glGetProgramInfoLog; +#define glGetProgramInfoLog glad_glGetProgramInfoLog +GLAD_API_CALL PFNGLGETPROGRAMIVPROC glad_glGetProgramiv; +#define glGetProgramiv glad_glGetProgramiv +GLAD_API_CALL PFNGLGETQUERYOBJECTIVPROC glad_glGetQueryObjectiv; +#define glGetQueryObjectiv glad_glGetQueryObjectiv +GLAD_API_CALL PFNGLGETQUERYOBJECTUIVPROC glad_glGetQueryObjectuiv; +#define glGetQueryObjectuiv glad_glGetQueryObjectuiv +GLAD_API_CALL PFNGLGETQUERYIVPROC glad_glGetQueryiv; +#define glGetQueryiv glad_glGetQueryiv +GLAD_API_CALL PFNGLGETSHADERINFOLOGPROC glad_glGetShaderInfoLog; +#define glGetShaderInfoLog glad_glGetShaderInfoLog +GLAD_API_CALL PFNGLGETSHADERSOURCEPROC glad_glGetShaderSource; +#define glGetShaderSource glad_glGetShaderSource +GLAD_API_CALL PFNGLGETSHADERIVPROC glad_glGetShaderiv; +#define glGetShaderiv glad_glGetShaderiv +GLAD_API_CALL PFNGLGETSTRINGPROC glad_glGetString; +#define glGetString glad_glGetString +GLAD_API_CALL PFNGLGETTEXENVFVPROC glad_glGetTexEnvfv; +#define glGetTexEnvfv glad_glGetTexEnvfv +GLAD_API_CALL PFNGLGETTEXENVIVPROC glad_glGetTexEnviv; +#define glGetTexEnviv glad_glGetTexEnviv +GLAD_API_CALL PFNGLGETTEXGENDVPROC glad_glGetTexGendv; +#define glGetTexGendv glad_glGetTexGendv +GLAD_API_CALL PFNGLGETTEXGENFVPROC glad_glGetTexGenfv; +#define glGetTexGenfv glad_glGetTexGenfv +GLAD_API_CALL PFNGLGETTEXGENIVPROC glad_glGetTexGeniv; +#define glGetTexGeniv glad_glGetTexGeniv +GLAD_API_CALL PFNGLGETTEXIMAGEPROC glad_glGetTexImage; +#define glGetTexImage glad_glGetTexImage +GLAD_API_CALL PFNGLGETTEXLEVELPARAMETERFVPROC glad_glGetTexLevelParameterfv; +#define glGetTexLevelParameterfv glad_glGetTexLevelParameterfv +GLAD_API_CALL PFNGLGETTEXLEVELPARAMETERIVPROC glad_glGetTexLevelParameteriv; +#define glGetTexLevelParameteriv glad_glGetTexLevelParameteriv +GLAD_API_CALL PFNGLGETTEXPARAMETERFVPROC glad_glGetTexParameterfv; +#define glGetTexParameterfv glad_glGetTexParameterfv +GLAD_API_CALL PFNGLGETTEXPARAMETERIVPROC glad_glGetTexParameteriv; +#define glGetTexParameteriv glad_glGetTexParameteriv +GLAD_API_CALL PFNGLGETUNIFORMLOCATIONPROC glad_glGetUniformLocation; +#define glGetUniformLocation glad_glGetUniformLocation +GLAD_API_CALL PFNGLGETUNIFORMFVPROC glad_glGetUniformfv; +#define glGetUniformfv glad_glGetUniformfv +GLAD_API_CALL PFNGLGETUNIFORMIVPROC glad_glGetUniformiv; +#define glGetUniformiv glad_glGetUniformiv +GLAD_API_CALL PFNGLGETVERTEXATTRIBPOINTERVPROC glad_glGetVertexAttribPointerv; +#define glGetVertexAttribPointerv glad_glGetVertexAttribPointerv +GLAD_API_CALL PFNGLGETVERTEXATTRIBDVPROC glad_glGetVertexAttribdv; +#define glGetVertexAttribdv glad_glGetVertexAttribdv +GLAD_API_CALL PFNGLGETVERTEXATTRIBFVPROC glad_glGetVertexAttribfv; +#define glGetVertexAttribfv glad_glGetVertexAttribfv +GLAD_API_CALL PFNGLGETVERTEXATTRIBIVPROC glad_glGetVertexAttribiv; +#define glGetVertexAttribiv glad_glGetVertexAttribiv +GLAD_API_CALL PFNGLHINTPROC glad_glHint; +#define glHint glad_glHint +GLAD_API_CALL PFNGLINDEXMASKPROC glad_glIndexMask; +#define glIndexMask glad_glIndexMask +GLAD_API_CALL PFNGLINDEXPOINTERPROC glad_glIndexPointer; +#define glIndexPointer glad_glIndexPointer +GLAD_API_CALL PFNGLINDEXDPROC glad_glIndexd; +#define glIndexd glad_glIndexd +GLAD_API_CALL PFNGLINDEXDVPROC glad_glIndexdv; +#define glIndexdv glad_glIndexdv +GLAD_API_CALL PFNGLINDEXFPROC glad_glIndexf; +#define glIndexf glad_glIndexf +GLAD_API_CALL PFNGLINDEXFVPROC glad_glIndexfv; +#define glIndexfv glad_glIndexfv +GLAD_API_CALL PFNGLINDEXIPROC glad_glIndexi; +#define glIndexi glad_glIndexi +GLAD_API_CALL PFNGLINDEXIVPROC glad_glIndexiv; +#define glIndexiv glad_glIndexiv +GLAD_API_CALL PFNGLINDEXSPROC glad_glIndexs; +#define glIndexs glad_glIndexs +GLAD_API_CALL PFNGLINDEXSVPROC glad_glIndexsv; +#define glIndexsv glad_glIndexsv +GLAD_API_CALL PFNGLINDEXUBPROC glad_glIndexub; +#define glIndexub glad_glIndexub +GLAD_API_CALL PFNGLINDEXUBVPROC glad_glIndexubv; +#define glIndexubv glad_glIndexubv +GLAD_API_CALL PFNGLINITNAMESPROC glad_glInitNames; +#define glInitNames glad_glInitNames +GLAD_API_CALL PFNGLINTERLEAVEDARRAYSPROC glad_glInterleavedArrays; +#define glInterleavedArrays glad_glInterleavedArrays +GLAD_API_CALL PFNGLISBUFFERPROC glad_glIsBuffer; +#define glIsBuffer glad_glIsBuffer +GLAD_API_CALL PFNGLISENABLEDPROC glad_glIsEnabled; +#define glIsEnabled glad_glIsEnabled +GLAD_API_CALL PFNGLISLISTPROC glad_glIsList; +#define glIsList glad_glIsList +GLAD_API_CALL PFNGLISPROGRAMPROC glad_glIsProgram; +#define glIsProgram glad_glIsProgram +GLAD_API_CALL PFNGLISQUERYPROC glad_glIsQuery; +#define glIsQuery glad_glIsQuery +GLAD_API_CALL PFNGLISSHADERPROC glad_glIsShader; +#define glIsShader glad_glIsShader +GLAD_API_CALL PFNGLISTEXTUREPROC glad_glIsTexture; +#define glIsTexture glad_glIsTexture +GLAD_API_CALL PFNGLLIGHTMODELFPROC glad_glLightModelf; +#define glLightModelf glad_glLightModelf +GLAD_API_CALL PFNGLLIGHTMODELFVPROC glad_glLightModelfv; +#define glLightModelfv glad_glLightModelfv +GLAD_API_CALL PFNGLLIGHTMODELIPROC glad_glLightModeli; +#define glLightModeli glad_glLightModeli +GLAD_API_CALL PFNGLLIGHTMODELIVPROC glad_glLightModeliv; +#define glLightModeliv glad_glLightModeliv +GLAD_API_CALL PFNGLLIGHTFPROC glad_glLightf; +#define glLightf glad_glLightf +GLAD_API_CALL PFNGLLIGHTFVPROC glad_glLightfv; +#define glLightfv glad_glLightfv +GLAD_API_CALL PFNGLLIGHTIPROC glad_glLighti; +#define glLighti glad_glLighti +GLAD_API_CALL PFNGLLIGHTIVPROC glad_glLightiv; +#define glLightiv glad_glLightiv +GLAD_API_CALL PFNGLLINESTIPPLEPROC glad_glLineStipple; +#define glLineStipple glad_glLineStipple +GLAD_API_CALL PFNGLLINEWIDTHPROC glad_glLineWidth; +#define glLineWidth glad_glLineWidth +GLAD_API_CALL PFNGLLINKPROGRAMPROC glad_glLinkProgram; +#define glLinkProgram glad_glLinkProgram +GLAD_API_CALL PFNGLLISTBASEPROC glad_glListBase; +#define glListBase glad_glListBase +GLAD_API_CALL PFNGLLOADIDENTITYPROC glad_glLoadIdentity; +#define glLoadIdentity glad_glLoadIdentity +GLAD_API_CALL PFNGLLOADMATRIXDPROC glad_glLoadMatrixd; +#define glLoadMatrixd glad_glLoadMatrixd +GLAD_API_CALL PFNGLLOADMATRIXFPROC glad_glLoadMatrixf; +#define glLoadMatrixf glad_glLoadMatrixf +GLAD_API_CALL PFNGLLOADNAMEPROC glad_glLoadName; +#define glLoadName glad_glLoadName +GLAD_API_CALL PFNGLLOADTRANSPOSEMATRIXDPROC glad_glLoadTransposeMatrixd; +#define glLoadTransposeMatrixd glad_glLoadTransposeMatrixd +GLAD_API_CALL PFNGLLOADTRANSPOSEMATRIXFPROC glad_glLoadTransposeMatrixf; +#define glLoadTransposeMatrixf glad_glLoadTransposeMatrixf +GLAD_API_CALL PFNGLLOGICOPPROC glad_glLogicOp; +#define glLogicOp glad_glLogicOp +GLAD_API_CALL PFNGLMAP1DPROC glad_glMap1d; +#define glMap1d glad_glMap1d +GLAD_API_CALL PFNGLMAP1FPROC glad_glMap1f; +#define glMap1f glad_glMap1f +GLAD_API_CALL PFNGLMAP2DPROC glad_glMap2d; +#define glMap2d glad_glMap2d +GLAD_API_CALL PFNGLMAP2FPROC glad_glMap2f; +#define glMap2f glad_glMap2f +GLAD_API_CALL PFNGLMAPBUFFERPROC glad_glMapBuffer; +#define glMapBuffer glad_glMapBuffer +GLAD_API_CALL PFNGLMAPGRID1DPROC glad_glMapGrid1d; +#define glMapGrid1d glad_glMapGrid1d +GLAD_API_CALL PFNGLMAPGRID1FPROC glad_glMapGrid1f; +#define glMapGrid1f glad_glMapGrid1f +GLAD_API_CALL PFNGLMAPGRID2DPROC glad_glMapGrid2d; +#define glMapGrid2d glad_glMapGrid2d +GLAD_API_CALL PFNGLMAPGRID2FPROC glad_glMapGrid2f; +#define glMapGrid2f glad_glMapGrid2f +GLAD_API_CALL PFNGLMATERIALFPROC glad_glMaterialf; +#define glMaterialf glad_glMaterialf +GLAD_API_CALL PFNGLMATERIALFVPROC glad_glMaterialfv; +#define glMaterialfv glad_glMaterialfv +GLAD_API_CALL PFNGLMATERIALIPROC glad_glMateriali; +#define glMateriali glad_glMateriali +GLAD_API_CALL PFNGLMATERIALIVPROC glad_glMaterialiv; +#define glMaterialiv glad_glMaterialiv +GLAD_API_CALL PFNGLMATRIXMODEPROC glad_glMatrixMode; +#define glMatrixMode glad_glMatrixMode +GLAD_API_CALL PFNGLMULTMATRIXDPROC glad_glMultMatrixd; +#define glMultMatrixd glad_glMultMatrixd +GLAD_API_CALL PFNGLMULTMATRIXFPROC glad_glMultMatrixf; +#define glMultMatrixf glad_glMultMatrixf +GLAD_API_CALL PFNGLMULTTRANSPOSEMATRIXDPROC glad_glMultTransposeMatrixd; +#define glMultTransposeMatrixd glad_glMultTransposeMatrixd +GLAD_API_CALL PFNGLMULTTRANSPOSEMATRIXFPROC glad_glMultTransposeMatrixf; +#define glMultTransposeMatrixf glad_glMultTransposeMatrixf +GLAD_API_CALL PFNGLMULTIDRAWARRAYSPROC glad_glMultiDrawArrays; +#define glMultiDrawArrays glad_glMultiDrawArrays +GLAD_API_CALL PFNGLMULTIDRAWELEMENTSPROC glad_glMultiDrawElements; +#define glMultiDrawElements glad_glMultiDrawElements +GLAD_API_CALL PFNGLMULTITEXCOORD1DPROC glad_glMultiTexCoord1d; +#define glMultiTexCoord1d glad_glMultiTexCoord1d +GLAD_API_CALL PFNGLMULTITEXCOORD1DVPROC glad_glMultiTexCoord1dv; +#define glMultiTexCoord1dv glad_glMultiTexCoord1dv +GLAD_API_CALL PFNGLMULTITEXCOORD1FPROC glad_glMultiTexCoord1f; +#define glMultiTexCoord1f glad_glMultiTexCoord1f +GLAD_API_CALL PFNGLMULTITEXCOORD1FVPROC glad_glMultiTexCoord1fv; +#define glMultiTexCoord1fv glad_glMultiTexCoord1fv +GLAD_API_CALL PFNGLMULTITEXCOORD1IPROC glad_glMultiTexCoord1i; +#define glMultiTexCoord1i glad_glMultiTexCoord1i +GLAD_API_CALL PFNGLMULTITEXCOORD1IVPROC glad_glMultiTexCoord1iv; +#define glMultiTexCoord1iv glad_glMultiTexCoord1iv +GLAD_API_CALL PFNGLMULTITEXCOORD1SPROC glad_glMultiTexCoord1s; +#define glMultiTexCoord1s glad_glMultiTexCoord1s +GLAD_API_CALL PFNGLMULTITEXCOORD1SVPROC glad_glMultiTexCoord1sv; +#define glMultiTexCoord1sv glad_glMultiTexCoord1sv +GLAD_API_CALL PFNGLMULTITEXCOORD2DPROC glad_glMultiTexCoord2d; +#define glMultiTexCoord2d glad_glMultiTexCoord2d +GLAD_API_CALL PFNGLMULTITEXCOORD2DVPROC glad_glMultiTexCoord2dv; +#define glMultiTexCoord2dv glad_glMultiTexCoord2dv +GLAD_API_CALL PFNGLMULTITEXCOORD2FPROC glad_glMultiTexCoord2f; +#define glMultiTexCoord2f glad_glMultiTexCoord2f +GLAD_API_CALL PFNGLMULTITEXCOORD2FVPROC glad_glMultiTexCoord2fv; +#define glMultiTexCoord2fv glad_glMultiTexCoord2fv +GLAD_API_CALL PFNGLMULTITEXCOORD2IPROC glad_glMultiTexCoord2i; +#define glMultiTexCoord2i glad_glMultiTexCoord2i +GLAD_API_CALL PFNGLMULTITEXCOORD2IVPROC glad_glMultiTexCoord2iv; +#define glMultiTexCoord2iv glad_glMultiTexCoord2iv +GLAD_API_CALL PFNGLMULTITEXCOORD2SPROC glad_glMultiTexCoord2s; +#define glMultiTexCoord2s glad_glMultiTexCoord2s +GLAD_API_CALL PFNGLMULTITEXCOORD2SVPROC glad_glMultiTexCoord2sv; +#define glMultiTexCoord2sv glad_glMultiTexCoord2sv +GLAD_API_CALL PFNGLMULTITEXCOORD3DPROC glad_glMultiTexCoord3d; +#define glMultiTexCoord3d glad_glMultiTexCoord3d +GLAD_API_CALL PFNGLMULTITEXCOORD3DVPROC glad_glMultiTexCoord3dv; +#define glMultiTexCoord3dv glad_glMultiTexCoord3dv +GLAD_API_CALL PFNGLMULTITEXCOORD3FPROC glad_glMultiTexCoord3f; +#define glMultiTexCoord3f glad_glMultiTexCoord3f +GLAD_API_CALL PFNGLMULTITEXCOORD3FVPROC glad_glMultiTexCoord3fv; +#define glMultiTexCoord3fv glad_glMultiTexCoord3fv +GLAD_API_CALL PFNGLMULTITEXCOORD3IPROC glad_glMultiTexCoord3i; +#define glMultiTexCoord3i glad_glMultiTexCoord3i +GLAD_API_CALL PFNGLMULTITEXCOORD3IVPROC glad_glMultiTexCoord3iv; +#define glMultiTexCoord3iv glad_glMultiTexCoord3iv +GLAD_API_CALL PFNGLMULTITEXCOORD3SPROC glad_glMultiTexCoord3s; +#define glMultiTexCoord3s glad_glMultiTexCoord3s +GLAD_API_CALL PFNGLMULTITEXCOORD3SVPROC glad_glMultiTexCoord3sv; +#define glMultiTexCoord3sv glad_glMultiTexCoord3sv +GLAD_API_CALL PFNGLMULTITEXCOORD4DPROC glad_glMultiTexCoord4d; +#define glMultiTexCoord4d glad_glMultiTexCoord4d +GLAD_API_CALL PFNGLMULTITEXCOORD4DVPROC glad_glMultiTexCoord4dv; +#define glMultiTexCoord4dv glad_glMultiTexCoord4dv +GLAD_API_CALL PFNGLMULTITEXCOORD4FPROC glad_glMultiTexCoord4f; +#define glMultiTexCoord4f glad_glMultiTexCoord4f +GLAD_API_CALL PFNGLMULTITEXCOORD4FVPROC glad_glMultiTexCoord4fv; +#define glMultiTexCoord4fv glad_glMultiTexCoord4fv +GLAD_API_CALL PFNGLMULTITEXCOORD4IPROC glad_glMultiTexCoord4i; +#define glMultiTexCoord4i glad_glMultiTexCoord4i +GLAD_API_CALL PFNGLMULTITEXCOORD4IVPROC glad_glMultiTexCoord4iv; +#define glMultiTexCoord4iv glad_glMultiTexCoord4iv +GLAD_API_CALL PFNGLMULTITEXCOORD4SPROC glad_glMultiTexCoord4s; +#define glMultiTexCoord4s glad_glMultiTexCoord4s +GLAD_API_CALL PFNGLMULTITEXCOORD4SVPROC glad_glMultiTexCoord4sv; +#define glMultiTexCoord4sv glad_glMultiTexCoord4sv +GLAD_API_CALL PFNGLNEWLISTPROC glad_glNewList; +#define glNewList glad_glNewList +GLAD_API_CALL PFNGLNORMAL3BPROC glad_glNormal3b; +#define glNormal3b glad_glNormal3b +GLAD_API_CALL PFNGLNORMAL3BVPROC glad_glNormal3bv; +#define glNormal3bv glad_glNormal3bv +GLAD_API_CALL PFNGLNORMAL3DPROC glad_glNormal3d; +#define glNormal3d glad_glNormal3d +GLAD_API_CALL PFNGLNORMAL3DVPROC glad_glNormal3dv; +#define glNormal3dv glad_glNormal3dv +GLAD_API_CALL PFNGLNORMAL3FPROC glad_glNormal3f; +#define glNormal3f glad_glNormal3f +GLAD_API_CALL PFNGLNORMAL3FVPROC glad_glNormal3fv; +#define glNormal3fv glad_glNormal3fv +GLAD_API_CALL PFNGLNORMAL3IPROC glad_glNormal3i; +#define glNormal3i glad_glNormal3i +GLAD_API_CALL PFNGLNORMAL3IVPROC glad_glNormal3iv; +#define glNormal3iv glad_glNormal3iv +GLAD_API_CALL PFNGLNORMAL3SPROC glad_glNormal3s; +#define glNormal3s glad_glNormal3s +GLAD_API_CALL PFNGLNORMAL3SVPROC glad_glNormal3sv; +#define glNormal3sv glad_glNormal3sv +GLAD_API_CALL PFNGLNORMALPOINTERPROC glad_glNormalPointer; +#define glNormalPointer glad_glNormalPointer +GLAD_API_CALL PFNGLORTHOPROC glad_glOrtho; +#define glOrtho glad_glOrtho +GLAD_API_CALL PFNGLPASSTHROUGHPROC glad_glPassThrough; +#define glPassThrough glad_glPassThrough +GLAD_API_CALL PFNGLPIXELMAPFVPROC glad_glPixelMapfv; +#define glPixelMapfv glad_glPixelMapfv +GLAD_API_CALL PFNGLPIXELMAPUIVPROC glad_glPixelMapuiv; +#define glPixelMapuiv glad_glPixelMapuiv +GLAD_API_CALL PFNGLPIXELMAPUSVPROC glad_glPixelMapusv; +#define glPixelMapusv glad_glPixelMapusv +GLAD_API_CALL PFNGLPIXELSTOREFPROC glad_glPixelStoref; +#define glPixelStoref glad_glPixelStoref +GLAD_API_CALL PFNGLPIXELSTOREIPROC glad_glPixelStorei; +#define glPixelStorei glad_glPixelStorei +GLAD_API_CALL PFNGLPIXELTRANSFERFPROC glad_glPixelTransferf; +#define glPixelTransferf glad_glPixelTransferf +GLAD_API_CALL PFNGLPIXELTRANSFERIPROC glad_glPixelTransferi; +#define glPixelTransferi glad_glPixelTransferi +GLAD_API_CALL PFNGLPIXELZOOMPROC glad_glPixelZoom; +#define glPixelZoom glad_glPixelZoom +GLAD_API_CALL PFNGLPOINTPARAMETERFPROC glad_glPointParameterf; +#define glPointParameterf glad_glPointParameterf +GLAD_API_CALL PFNGLPOINTPARAMETERFVPROC glad_glPointParameterfv; +#define glPointParameterfv glad_glPointParameterfv +GLAD_API_CALL PFNGLPOINTPARAMETERIPROC glad_glPointParameteri; +#define glPointParameteri glad_glPointParameteri +GLAD_API_CALL PFNGLPOINTPARAMETERIVPROC glad_glPointParameteriv; +#define glPointParameteriv glad_glPointParameteriv +GLAD_API_CALL PFNGLPOINTSIZEPROC glad_glPointSize; +#define glPointSize glad_glPointSize +GLAD_API_CALL PFNGLPOLYGONMODEPROC glad_glPolygonMode; +#define glPolygonMode glad_glPolygonMode +GLAD_API_CALL PFNGLPOLYGONOFFSETPROC glad_glPolygonOffset; +#define glPolygonOffset glad_glPolygonOffset +GLAD_API_CALL PFNGLPOLYGONSTIPPLEPROC glad_glPolygonStipple; +#define glPolygonStipple glad_glPolygonStipple +GLAD_API_CALL PFNGLPOPATTRIBPROC glad_glPopAttrib; +#define glPopAttrib glad_glPopAttrib +GLAD_API_CALL PFNGLPOPCLIENTATTRIBPROC glad_glPopClientAttrib; +#define glPopClientAttrib glad_glPopClientAttrib +GLAD_API_CALL PFNGLPOPMATRIXPROC glad_glPopMatrix; +#define glPopMatrix glad_glPopMatrix +GLAD_API_CALL PFNGLPOPNAMEPROC glad_glPopName; +#define glPopName glad_glPopName +GLAD_API_CALL PFNGLPRIORITIZETEXTURESPROC glad_glPrioritizeTextures; +#define glPrioritizeTextures glad_glPrioritizeTextures +GLAD_API_CALL PFNGLPUSHATTRIBPROC glad_glPushAttrib; +#define glPushAttrib glad_glPushAttrib +GLAD_API_CALL PFNGLPUSHCLIENTATTRIBPROC glad_glPushClientAttrib; +#define glPushClientAttrib glad_glPushClientAttrib +GLAD_API_CALL PFNGLPUSHMATRIXPROC glad_glPushMatrix; +#define glPushMatrix glad_glPushMatrix +GLAD_API_CALL PFNGLPUSHNAMEPROC glad_glPushName; +#define glPushName glad_glPushName +GLAD_API_CALL PFNGLRASTERPOS2DPROC glad_glRasterPos2d; +#define glRasterPos2d glad_glRasterPos2d +GLAD_API_CALL PFNGLRASTERPOS2DVPROC glad_glRasterPos2dv; +#define glRasterPos2dv glad_glRasterPos2dv +GLAD_API_CALL PFNGLRASTERPOS2FPROC glad_glRasterPos2f; +#define glRasterPos2f glad_glRasterPos2f +GLAD_API_CALL PFNGLRASTERPOS2FVPROC glad_glRasterPos2fv; +#define glRasterPos2fv glad_glRasterPos2fv +GLAD_API_CALL PFNGLRASTERPOS2IPROC glad_glRasterPos2i; +#define glRasterPos2i glad_glRasterPos2i +GLAD_API_CALL PFNGLRASTERPOS2IVPROC glad_glRasterPos2iv; +#define glRasterPos2iv glad_glRasterPos2iv +GLAD_API_CALL PFNGLRASTERPOS2SPROC glad_glRasterPos2s; +#define glRasterPos2s glad_glRasterPos2s +GLAD_API_CALL PFNGLRASTERPOS2SVPROC glad_glRasterPos2sv; +#define glRasterPos2sv glad_glRasterPos2sv +GLAD_API_CALL PFNGLRASTERPOS3DPROC glad_glRasterPos3d; +#define glRasterPos3d glad_glRasterPos3d +GLAD_API_CALL PFNGLRASTERPOS3DVPROC glad_glRasterPos3dv; +#define glRasterPos3dv glad_glRasterPos3dv +GLAD_API_CALL PFNGLRASTERPOS3FPROC glad_glRasterPos3f; +#define glRasterPos3f glad_glRasterPos3f +GLAD_API_CALL PFNGLRASTERPOS3FVPROC glad_glRasterPos3fv; +#define glRasterPos3fv glad_glRasterPos3fv +GLAD_API_CALL PFNGLRASTERPOS3IPROC glad_glRasterPos3i; +#define glRasterPos3i glad_glRasterPos3i +GLAD_API_CALL PFNGLRASTERPOS3IVPROC glad_glRasterPos3iv; +#define glRasterPos3iv glad_glRasterPos3iv +GLAD_API_CALL PFNGLRASTERPOS3SPROC glad_glRasterPos3s; +#define glRasterPos3s glad_glRasterPos3s +GLAD_API_CALL PFNGLRASTERPOS3SVPROC glad_glRasterPos3sv; +#define glRasterPos3sv glad_glRasterPos3sv +GLAD_API_CALL PFNGLRASTERPOS4DPROC glad_glRasterPos4d; +#define glRasterPos4d glad_glRasterPos4d +GLAD_API_CALL PFNGLRASTERPOS4DVPROC glad_glRasterPos4dv; +#define glRasterPos4dv glad_glRasterPos4dv +GLAD_API_CALL PFNGLRASTERPOS4FPROC glad_glRasterPos4f; +#define glRasterPos4f glad_glRasterPos4f +GLAD_API_CALL PFNGLRASTERPOS4FVPROC glad_glRasterPos4fv; +#define glRasterPos4fv glad_glRasterPos4fv +GLAD_API_CALL PFNGLRASTERPOS4IPROC glad_glRasterPos4i; +#define glRasterPos4i glad_glRasterPos4i +GLAD_API_CALL PFNGLRASTERPOS4IVPROC glad_glRasterPos4iv; +#define glRasterPos4iv glad_glRasterPos4iv +GLAD_API_CALL PFNGLRASTERPOS4SPROC glad_glRasterPos4s; +#define glRasterPos4s glad_glRasterPos4s +GLAD_API_CALL PFNGLRASTERPOS4SVPROC glad_glRasterPos4sv; +#define glRasterPos4sv glad_glRasterPos4sv +GLAD_API_CALL PFNGLREADBUFFERPROC glad_glReadBuffer; +#define glReadBuffer glad_glReadBuffer +GLAD_API_CALL PFNGLREADPIXELSPROC glad_glReadPixels; +#define glReadPixels glad_glReadPixels +GLAD_API_CALL PFNGLRECTDPROC glad_glRectd; +#define glRectd glad_glRectd +GLAD_API_CALL PFNGLRECTDVPROC glad_glRectdv; +#define glRectdv glad_glRectdv +GLAD_API_CALL PFNGLRECTFPROC glad_glRectf; +#define glRectf glad_glRectf +GLAD_API_CALL PFNGLRECTFVPROC glad_glRectfv; +#define glRectfv glad_glRectfv +GLAD_API_CALL PFNGLRECTIPROC glad_glRecti; +#define glRecti glad_glRecti +GLAD_API_CALL PFNGLRECTIVPROC glad_glRectiv; +#define glRectiv glad_glRectiv +GLAD_API_CALL PFNGLRECTSPROC glad_glRects; +#define glRects glad_glRects +GLAD_API_CALL PFNGLRECTSVPROC glad_glRectsv; +#define glRectsv glad_glRectsv +GLAD_API_CALL PFNGLRENDERMODEPROC glad_glRenderMode; +#define glRenderMode glad_glRenderMode +GLAD_API_CALL PFNGLROTATEDPROC glad_glRotated; +#define glRotated glad_glRotated +GLAD_API_CALL PFNGLROTATEFPROC glad_glRotatef; +#define glRotatef glad_glRotatef +GLAD_API_CALL PFNGLSAMPLECOVERAGEPROC glad_glSampleCoverage; +#define glSampleCoverage glad_glSampleCoverage +GLAD_API_CALL PFNGLSCALEDPROC glad_glScaled; +#define glScaled glad_glScaled +GLAD_API_CALL PFNGLSCALEFPROC glad_glScalef; +#define glScalef glad_glScalef +GLAD_API_CALL PFNGLSCISSORPROC glad_glScissor; +#define glScissor glad_glScissor +GLAD_API_CALL PFNGLSECONDARYCOLOR3BPROC glad_glSecondaryColor3b; +#define glSecondaryColor3b glad_glSecondaryColor3b +GLAD_API_CALL PFNGLSECONDARYCOLOR3BVPROC glad_glSecondaryColor3bv; +#define glSecondaryColor3bv glad_glSecondaryColor3bv +GLAD_API_CALL PFNGLSECONDARYCOLOR3DPROC glad_glSecondaryColor3d; +#define glSecondaryColor3d glad_glSecondaryColor3d +GLAD_API_CALL PFNGLSECONDARYCOLOR3DVPROC glad_glSecondaryColor3dv; +#define glSecondaryColor3dv glad_glSecondaryColor3dv +GLAD_API_CALL PFNGLSECONDARYCOLOR3FPROC glad_glSecondaryColor3f; +#define glSecondaryColor3f glad_glSecondaryColor3f +GLAD_API_CALL PFNGLSECONDARYCOLOR3FVPROC glad_glSecondaryColor3fv; +#define glSecondaryColor3fv glad_glSecondaryColor3fv +GLAD_API_CALL PFNGLSECONDARYCOLOR3IPROC glad_glSecondaryColor3i; +#define glSecondaryColor3i glad_glSecondaryColor3i +GLAD_API_CALL PFNGLSECONDARYCOLOR3IVPROC glad_glSecondaryColor3iv; +#define glSecondaryColor3iv glad_glSecondaryColor3iv +GLAD_API_CALL PFNGLSECONDARYCOLOR3SPROC glad_glSecondaryColor3s; +#define glSecondaryColor3s glad_glSecondaryColor3s +GLAD_API_CALL PFNGLSECONDARYCOLOR3SVPROC glad_glSecondaryColor3sv; +#define glSecondaryColor3sv glad_glSecondaryColor3sv +GLAD_API_CALL PFNGLSECONDARYCOLOR3UBPROC glad_glSecondaryColor3ub; +#define glSecondaryColor3ub glad_glSecondaryColor3ub +GLAD_API_CALL PFNGLSECONDARYCOLOR3UBVPROC glad_glSecondaryColor3ubv; +#define glSecondaryColor3ubv glad_glSecondaryColor3ubv +GLAD_API_CALL PFNGLSECONDARYCOLOR3UIPROC glad_glSecondaryColor3ui; +#define glSecondaryColor3ui glad_glSecondaryColor3ui +GLAD_API_CALL PFNGLSECONDARYCOLOR3UIVPROC glad_glSecondaryColor3uiv; +#define glSecondaryColor3uiv glad_glSecondaryColor3uiv +GLAD_API_CALL PFNGLSECONDARYCOLOR3USPROC glad_glSecondaryColor3us; +#define glSecondaryColor3us glad_glSecondaryColor3us +GLAD_API_CALL PFNGLSECONDARYCOLOR3USVPROC glad_glSecondaryColor3usv; +#define glSecondaryColor3usv glad_glSecondaryColor3usv +GLAD_API_CALL PFNGLSECONDARYCOLORPOINTERPROC glad_glSecondaryColorPointer; +#define glSecondaryColorPointer glad_glSecondaryColorPointer +GLAD_API_CALL PFNGLSELECTBUFFERPROC glad_glSelectBuffer; +#define glSelectBuffer glad_glSelectBuffer +GLAD_API_CALL PFNGLSHADEMODELPROC glad_glShadeModel; +#define glShadeModel glad_glShadeModel +GLAD_API_CALL PFNGLSHADERSOURCEPROC glad_glShaderSource; +#define glShaderSource glad_glShaderSource +GLAD_API_CALL PFNGLSTENCILFUNCPROC glad_glStencilFunc; +#define glStencilFunc glad_glStencilFunc +GLAD_API_CALL PFNGLSTENCILFUNCSEPARATEPROC glad_glStencilFuncSeparate; +#define glStencilFuncSeparate glad_glStencilFuncSeparate +GLAD_API_CALL PFNGLSTENCILMASKPROC glad_glStencilMask; +#define glStencilMask glad_glStencilMask +GLAD_API_CALL PFNGLSTENCILMASKSEPARATEPROC glad_glStencilMaskSeparate; +#define glStencilMaskSeparate glad_glStencilMaskSeparate +GLAD_API_CALL PFNGLSTENCILOPPROC glad_glStencilOp; +#define glStencilOp glad_glStencilOp +GLAD_API_CALL PFNGLSTENCILOPSEPARATEPROC glad_glStencilOpSeparate; +#define glStencilOpSeparate glad_glStencilOpSeparate +GLAD_API_CALL PFNGLTEXCOORD1DPROC glad_glTexCoord1d; +#define glTexCoord1d glad_glTexCoord1d +GLAD_API_CALL PFNGLTEXCOORD1DVPROC glad_glTexCoord1dv; +#define glTexCoord1dv glad_glTexCoord1dv +GLAD_API_CALL PFNGLTEXCOORD1FPROC glad_glTexCoord1f; +#define glTexCoord1f glad_glTexCoord1f +GLAD_API_CALL PFNGLTEXCOORD1FVPROC glad_glTexCoord1fv; +#define glTexCoord1fv glad_glTexCoord1fv +GLAD_API_CALL PFNGLTEXCOORD1IPROC glad_glTexCoord1i; +#define glTexCoord1i glad_glTexCoord1i +GLAD_API_CALL PFNGLTEXCOORD1IVPROC glad_glTexCoord1iv; +#define glTexCoord1iv glad_glTexCoord1iv +GLAD_API_CALL PFNGLTEXCOORD1SPROC glad_glTexCoord1s; +#define glTexCoord1s glad_glTexCoord1s +GLAD_API_CALL PFNGLTEXCOORD1SVPROC glad_glTexCoord1sv; +#define glTexCoord1sv glad_glTexCoord1sv +GLAD_API_CALL PFNGLTEXCOORD2DPROC glad_glTexCoord2d; +#define glTexCoord2d glad_glTexCoord2d +GLAD_API_CALL PFNGLTEXCOORD2DVPROC glad_glTexCoord2dv; +#define glTexCoord2dv glad_glTexCoord2dv +GLAD_API_CALL PFNGLTEXCOORD2FPROC glad_glTexCoord2f; +#define glTexCoord2f glad_glTexCoord2f +GLAD_API_CALL PFNGLTEXCOORD2FVPROC glad_glTexCoord2fv; +#define glTexCoord2fv glad_glTexCoord2fv +GLAD_API_CALL PFNGLTEXCOORD2IPROC glad_glTexCoord2i; +#define glTexCoord2i glad_glTexCoord2i +GLAD_API_CALL PFNGLTEXCOORD2IVPROC glad_glTexCoord2iv; +#define glTexCoord2iv glad_glTexCoord2iv +GLAD_API_CALL PFNGLTEXCOORD2SPROC glad_glTexCoord2s; +#define glTexCoord2s glad_glTexCoord2s +GLAD_API_CALL PFNGLTEXCOORD2SVPROC glad_glTexCoord2sv; +#define glTexCoord2sv glad_glTexCoord2sv +GLAD_API_CALL PFNGLTEXCOORD3DPROC glad_glTexCoord3d; +#define glTexCoord3d glad_glTexCoord3d +GLAD_API_CALL PFNGLTEXCOORD3DVPROC glad_glTexCoord3dv; +#define glTexCoord3dv glad_glTexCoord3dv +GLAD_API_CALL PFNGLTEXCOORD3FPROC glad_glTexCoord3f; +#define glTexCoord3f glad_glTexCoord3f +GLAD_API_CALL PFNGLTEXCOORD3FVPROC glad_glTexCoord3fv; +#define glTexCoord3fv glad_glTexCoord3fv +GLAD_API_CALL PFNGLTEXCOORD3IPROC glad_glTexCoord3i; +#define glTexCoord3i glad_glTexCoord3i +GLAD_API_CALL PFNGLTEXCOORD3IVPROC glad_glTexCoord3iv; +#define glTexCoord3iv glad_glTexCoord3iv +GLAD_API_CALL PFNGLTEXCOORD3SPROC glad_glTexCoord3s; +#define glTexCoord3s glad_glTexCoord3s +GLAD_API_CALL PFNGLTEXCOORD3SVPROC glad_glTexCoord3sv; +#define glTexCoord3sv glad_glTexCoord3sv +GLAD_API_CALL PFNGLTEXCOORD4DPROC glad_glTexCoord4d; +#define glTexCoord4d glad_glTexCoord4d +GLAD_API_CALL PFNGLTEXCOORD4DVPROC glad_glTexCoord4dv; +#define glTexCoord4dv glad_glTexCoord4dv +GLAD_API_CALL PFNGLTEXCOORD4FPROC glad_glTexCoord4f; +#define glTexCoord4f glad_glTexCoord4f +GLAD_API_CALL PFNGLTEXCOORD4FVPROC glad_glTexCoord4fv; +#define glTexCoord4fv glad_glTexCoord4fv +GLAD_API_CALL PFNGLTEXCOORD4IPROC glad_glTexCoord4i; +#define glTexCoord4i glad_glTexCoord4i +GLAD_API_CALL PFNGLTEXCOORD4IVPROC glad_glTexCoord4iv; +#define glTexCoord4iv glad_glTexCoord4iv +GLAD_API_CALL PFNGLTEXCOORD4SPROC glad_glTexCoord4s; +#define glTexCoord4s glad_glTexCoord4s +GLAD_API_CALL PFNGLTEXCOORD4SVPROC glad_glTexCoord4sv; +#define glTexCoord4sv glad_glTexCoord4sv +GLAD_API_CALL PFNGLTEXCOORDPOINTERPROC glad_glTexCoordPointer; +#define glTexCoordPointer glad_glTexCoordPointer +GLAD_API_CALL PFNGLTEXENVFPROC glad_glTexEnvf; +#define glTexEnvf glad_glTexEnvf +GLAD_API_CALL PFNGLTEXENVFVPROC glad_glTexEnvfv; +#define glTexEnvfv glad_glTexEnvfv +GLAD_API_CALL PFNGLTEXENVIPROC glad_glTexEnvi; +#define glTexEnvi glad_glTexEnvi +GLAD_API_CALL PFNGLTEXENVIVPROC glad_glTexEnviv; +#define glTexEnviv glad_glTexEnviv +GLAD_API_CALL PFNGLTEXGENDPROC glad_glTexGend; +#define glTexGend glad_glTexGend +GLAD_API_CALL PFNGLTEXGENDVPROC glad_glTexGendv; +#define glTexGendv glad_glTexGendv +GLAD_API_CALL PFNGLTEXGENFPROC glad_glTexGenf; +#define glTexGenf glad_glTexGenf +GLAD_API_CALL PFNGLTEXGENFVPROC glad_glTexGenfv; +#define glTexGenfv glad_glTexGenfv +GLAD_API_CALL PFNGLTEXGENIPROC glad_glTexGeni; +#define glTexGeni glad_glTexGeni +GLAD_API_CALL PFNGLTEXGENIVPROC glad_glTexGeniv; +#define glTexGeniv glad_glTexGeniv +GLAD_API_CALL PFNGLTEXIMAGE1DPROC glad_glTexImage1D; +#define glTexImage1D glad_glTexImage1D +GLAD_API_CALL PFNGLTEXIMAGE2DPROC glad_glTexImage2D; +#define glTexImage2D glad_glTexImage2D +GLAD_API_CALL PFNGLTEXIMAGE3DPROC glad_glTexImage3D; +#define glTexImage3D glad_glTexImage3D +GLAD_API_CALL PFNGLTEXPARAMETERFPROC glad_glTexParameterf; +#define glTexParameterf glad_glTexParameterf +GLAD_API_CALL PFNGLTEXPARAMETERFVPROC glad_glTexParameterfv; +#define glTexParameterfv glad_glTexParameterfv +GLAD_API_CALL PFNGLTEXPARAMETERIPROC glad_glTexParameteri; +#define glTexParameteri glad_glTexParameteri +GLAD_API_CALL PFNGLTEXPARAMETERIVPROC glad_glTexParameteriv; +#define glTexParameteriv glad_glTexParameteriv +GLAD_API_CALL PFNGLTEXSUBIMAGE1DPROC glad_glTexSubImage1D; +#define glTexSubImage1D glad_glTexSubImage1D +GLAD_API_CALL PFNGLTEXSUBIMAGE2DPROC glad_glTexSubImage2D; +#define glTexSubImage2D glad_glTexSubImage2D +GLAD_API_CALL PFNGLTEXSUBIMAGE3DPROC glad_glTexSubImage3D; +#define glTexSubImage3D glad_glTexSubImage3D +GLAD_API_CALL PFNGLTRANSLATEDPROC glad_glTranslated; +#define glTranslated glad_glTranslated +GLAD_API_CALL PFNGLTRANSLATEFPROC glad_glTranslatef; +#define glTranslatef glad_glTranslatef +GLAD_API_CALL PFNGLUNIFORM1FPROC glad_glUniform1f; +#define glUniform1f glad_glUniform1f +GLAD_API_CALL PFNGLUNIFORM1FVPROC glad_glUniform1fv; +#define glUniform1fv glad_glUniform1fv +GLAD_API_CALL PFNGLUNIFORM1IPROC glad_glUniform1i; +#define glUniform1i glad_glUniform1i +GLAD_API_CALL PFNGLUNIFORM1IVPROC glad_glUniform1iv; +#define glUniform1iv glad_glUniform1iv +GLAD_API_CALL PFNGLUNIFORM2FPROC glad_glUniform2f; +#define glUniform2f glad_glUniform2f +GLAD_API_CALL PFNGLUNIFORM2FVPROC glad_glUniform2fv; +#define glUniform2fv glad_glUniform2fv +GLAD_API_CALL PFNGLUNIFORM2IPROC glad_glUniform2i; +#define glUniform2i glad_glUniform2i +GLAD_API_CALL PFNGLUNIFORM2IVPROC glad_glUniform2iv; +#define glUniform2iv glad_glUniform2iv +GLAD_API_CALL PFNGLUNIFORM3FPROC glad_glUniform3f; +#define glUniform3f glad_glUniform3f +GLAD_API_CALL PFNGLUNIFORM3FVPROC glad_glUniform3fv; +#define glUniform3fv glad_glUniform3fv +GLAD_API_CALL PFNGLUNIFORM3IPROC glad_glUniform3i; +#define glUniform3i glad_glUniform3i +GLAD_API_CALL PFNGLUNIFORM3IVPROC glad_glUniform3iv; +#define glUniform3iv glad_glUniform3iv +GLAD_API_CALL PFNGLUNIFORM4FPROC glad_glUniform4f; +#define glUniform4f glad_glUniform4f +GLAD_API_CALL PFNGLUNIFORM4FVPROC glad_glUniform4fv; +#define glUniform4fv glad_glUniform4fv +GLAD_API_CALL PFNGLUNIFORM4IPROC glad_glUniform4i; +#define glUniform4i glad_glUniform4i +GLAD_API_CALL PFNGLUNIFORM4IVPROC glad_glUniform4iv; +#define glUniform4iv glad_glUniform4iv +GLAD_API_CALL PFNGLUNIFORMMATRIX2FVPROC glad_glUniformMatrix2fv; +#define glUniformMatrix2fv glad_glUniformMatrix2fv +GLAD_API_CALL PFNGLUNIFORMMATRIX2X3FVPROC glad_glUniformMatrix2x3fv; +#define glUniformMatrix2x3fv glad_glUniformMatrix2x3fv +GLAD_API_CALL PFNGLUNIFORMMATRIX2X4FVPROC glad_glUniformMatrix2x4fv; +#define glUniformMatrix2x4fv glad_glUniformMatrix2x4fv +GLAD_API_CALL PFNGLUNIFORMMATRIX3FVPROC glad_glUniformMatrix3fv; +#define glUniformMatrix3fv glad_glUniformMatrix3fv +GLAD_API_CALL PFNGLUNIFORMMATRIX3X2FVPROC glad_glUniformMatrix3x2fv; +#define glUniformMatrix3x2fv glad_glUniformMatrix3x2fv +GLAD_API_CALL PFNGLUNIFORMMATRIX3X4FVPROC glad_glUniformMatrix3x4fv; +#define glUniformMatrix3x4fv glad_glUniformMatrix3x4fv +GLAD_API_CALL PFNGLUNIFORMMATRIX4FVPROC glad_glUniformMatrix4fv; +#define glUniformMatrix4fv glad_glUniformMatrix4fv +GLAD_API_CALL PFNGLUNIFORMMATRIX4X2FVPROC glad_glUniformMatrix4x2fv; +#define glUniformMatrix4x2fv glad_glUniformMatrix4x2fv +GLAD_API_CALL PFNGLUNIFORMMATRIX4X3FVPROC glad_glUniformMatrix4x3fv; +#define glUniformMatrix4x3fv glad_glUniformMatrix4x3fv +GLAD_API_CALL PFNGLUNMAPBUFFERPROC glad_glUnmapBuffer; +#define glUnmapBuffer glad_glUnmapBuffer +GLAD_API_CALL PFNGLUSEPROGRAMPROC glad_glUseProgram; +#define glUseProgram glad_glUseProgram +GLAD_API_CALL PFNGLVALIDATEPROGRAMPROC glad_glValidateProgram; +#define glValidateProgram glad_glValidateProgram +GLAD_API_CALL PFNGLVERTEX2DPROC glad_glVertex2d; +#define glVertex2d glad_glVertex2d +GLAD_API_CALL PFNGLVERTEX2DVPROC glad_glVertex2dv; +#define glVertex2dv glad_glVertex2dv +GLAD_API_CALL PFNGLVERTEX2FPROC glad_glVertex2f; +#define glVertex2f glad_glVertex2f +GLAD_API_CALL PFNGLVERTEX2FVPROC glad_glVertex2fv; +#define glVertex2fv glad_glVertex2fv +GLAD_API_CALL PFNGLVERTEX2IPROC glad_glVertex2i; +#define glVertex2i glad_glVertex2i +GLAD_API_CALL PFNGLVERTEX2IVPROC glad_glVertex2iv; +#define glVertex2iv glad_glVertex2iv +GLAD_API_CALL PFNGLVERTEX2SPROC glad_glVertex2s; +#define glVertex2s glad_glVertex2s +GLAD_API_CALL PFNGLVERTEX2SVPROC glad_glVertex2sv; +#define glVertex2sv glad_glVertex2sv +GLAD_API_CALL PFNGLVERTEX3DPROC glad_glVertex3d; +#define glVertex3d glad_glVertex3d +GLAD_API_CALL PFNGLVERTEX3DVPROC glad_glVertex3dv; +#define glVertex3dv glad_glVertex3dv +GLAD_API_CALL PFNGLVERTEX3FPROC glad_glVertex3f; +#define glVertex3f glad_glVertex3f +GLAD_API_CALL PFNGLVERTEX3FVPROC glad_glVertex3fv; +#define glVertex3fv glad_glVertex3fv +GLAD_API_CALL PFNGLVERTEX3IPROC glad_glVertex3i; +#define glVertex3i glad_glVertex3i +GLAD_API_CALL PFNGLVERTEX3IVPROC glad_glVertex3iv; +#define glVertex3iv glad_glVertex3iv +GLAD_API_CALL PFNGLVERTEX3SPROC glad_glVertex3s; +#define glVertex3s glad_glVertex3s +GLAD_API_CALL PFNGLVERTEX3SVPROC glad_glVertex3sv; +#define glVertex3sv glad_glVertex3sv +GLAD_API_CALL PFNGLVERTEX4DPROC glad_glVertex4d; +#define glVertex4d glad_glVertex4d +GLAD_API_CALL PFNGLVERTEX4DVPROC glad_glVertex4dv; +#define glVertex4dv glad_glVertex4dv +GLAD_API_CALL PFNGLVERTEX4FPROC glad_glVertex4f; +#define glVertex4f glad_glVertex4f +GLAD_API_CALL PFNGLVERTEX4FVPROC glad_glVertex4fv; +#define glVertex4fv glad_glVertex4fv +GLAD_API_CALL PFNGLVERTEX4IPROC glad_glVertex4i; +#define glVertex4i glad_glVertex4i +GLAD_API_CALL PFNGLVERTEX4IVPROC glad_glVertex4iv; +#define glVertex4iv glad_glVertex4iv +GLAD_API_CALL PFNGLVERTEX4SPROC glad_glVertex4s; +#define glVertex4s glad_glVertex4s +GLAD_API_CALL PFNGLVERTEX4SVPROC glad_glVertex4sv; +#define glVertex4sv glad_glVertex4sv +GLAD_API_CALL PFNGLVERTEXATTRIB1DPROC glad_glVertexAttrib1d; +#define glVertexAttrib1d glad_glVertexAttrib1d +GLAD_API_CALL PFNGLVERTEXATTRIB1DVPROC glad_glVertexAttrib1dv; +#define glVertexAttrib1dv glad_glVertexAttrib1dv +GLAD_API_CALL PFNGLVERTEXATTRIB1FPROC glad_glVertexAttrib1f; +#define glVertexAttrib1f glad_glVertexAttrib1f +GLAD_API_CALL PFNGLVERTEXATTRIB1FVPROC glad_glVertexAttrib1fv; +#define glVertexAttrib1fv glad_glVertexAttrib1fv +GLAD_API_CALL PFNGLVERTEXATTRIB1SPROC glad_glVertexAttrib1s; +#define glVertexAttrib1s glad_glVertexAttrib1s +GLAD_API_CALL PFNGLVERTEXATTRIB1SVPROC glad_glVertexAttrib1sv; +#define glVertexAttrib1sv glad_glVertexAttrib1sv +GLAD_API_CALL PFNGLVERTEXATTRIB2DPROC glad_glVertexAttrib2d; +#define glVertexAttrib2d glad_glVertexAttrib2d +GLAD_API_CALL PFNGLVERTEXATTRIB2DVPROC glad_glVertexAttrib2dv; +#define glVertexAttrib2dv glad_glVertexAttrib2dv +GLAD_API_CALL PFNGLVERTEXATTRIB2FPROC glad_glVertexAttrib2f; +#define glVertexAttrib2f glad_glVertexAttrib2f +GLAD_API_CALL PFNGLVERTEXATTRIB2FVPROC glad_glVertexAttrib2fv; +#define glVertexAttrib2fv glad_glVertexAttrib2fv +GLAD_API_CALL PFNGLVERTEXATTRIB2SPROC glad_glVertexAttrib2s; +#define glVertexAttrib2s glad_glVertexAttrib2s +GLAD_API_CALL PFNGLVERTEXATTRIB2SVPROC glad_glVertexAttrib2sv; +#define glVertexAttrib2sv glad_glVertexAttrib2sv +GLAD_API_CALL PFNGLVERTEXATTRIB3DPROC glad_glVertexAttrib3d; +#define glVertexAttrib3d glad_glVertexAttrib3d +GLAD_API_CALL PFNGLVERTEXATTRIB3DVPROC glad_glVertexAttrib3dv; +#define glVertexAttrib3dv glad_glVertexAttrib3dv +GLAD_API_CALL PFNGLVERTEXATTRIB3FPROC glad_glVertexAttrib3f; +#define glVertexAttrib3f glad_glVertexAttrib3f +GLAD_API_CALL PFNGLVERTEXATTRIB3FVPROC glad_glVertexAttrib3fv; +#define glVertexAttrib3fv glad_glVertexAttrib3fv +GLAD_API_CALL PFNGLVERTEXATTRIB3SPROC glad_glVertexAttrib3s; +#define glVertexAttrib3s glad_glVertexAttrib3s +GLAD_API_CALL PFNGLVERTEXATTRIB3SVPROC glad_glVertexAttrib3sv; +#define glVertexAttrib3sv glad_glVertexAttrib3sv +GLAD_API_CALL PFNGLVERTEXATTRIB4NBVPROC glad_glVertexAttrib4Nbv; +#define glVertexAttrib4Nbv glad_glVertexAttrib4Nbv +GLAD_API_CALL PFNGLVERTEXATTRIB4NIVPROC glad_glVertexAttrib4Niv; +#define glVertexAttrib4Niv glad_glVertexAttrib4Niv +GLAD_API_CALL PFNGLVERTEXATTRIB4NSVPROC glad_glVertexAttrib4Nsv; +#define glVertexAttrib4Nsv glad_glVertexAttrib4Nsv +GLAD_API_CALL PFNGLVERTEXATTRIB4NUBPROC glad_glVertexAttrib4Nub; +#define glVertexAttrib4Nub glad_glVertexAttrib4Nub +GLAD_API_CALL PFNGLVERTEXATTRIB4NUBVPROC glad_glVertexAttrib4Nubv; +#define glVertexAttrib4Nubv glad_glVertexAttrib4Nubv +GLAD_API_CALL PFNGLVERTEXATTRIB4NUIVPROC glad_glVertexAttrib4Nuiv; +#define glVertexAttrib4Nuiv glad_glVertexAttrib4Nuiv +GLAD_API_CALL PFNGLVERTEXATTRIB4NUSVPROC glad_glVertexAttrib4Nusv; +#define glVertexAttrib4Nusv glad_glVertexAttrib4Nusv +GLAD_API_CALL PFNGLVERTEXATTRIB4BVPROC glad_glVertexAttrib4bv; +#define glVertexAttrib4bv glad_glVertexAttrib4bv +GLAD_API_CALL PFNGLVERTEXATTRIB4DPROC glad_glVertexAttrib4d; +#define glVertexAttrib4d glad_glVertexAttrib4d +GLAD_API_CALL PFNGLVERTEXATTRIB4DVPROC glad_glVertexAttrib4dv; +#define glVertexAttrib4dv glad_glVertexAttrib4dv +GLAD_API_CALL PFNGLVERTEXATTRIB4FPROC glad_glVertexAttrib4f; +#define glVertexAttrib4f glad_glVertexAttrib4f +GLAD_API_CALL PFNGLVERTEXATTRIB4FVPROC glad_glVertexAttrib4fv; +#define glVertexAttrib4fv glad_glVertexAttrib4fv +GLAD_API_CALL PFNGLVERTEXATTRIB4IVPROC glad_glVertexAttrib4iv; +#define glVertexAttrib4iv glad_glVertexAttrib4iv +GLAD_API_CALL PFNGLVERTEXATTRIB4SPROC glad_glVertexAttrib4s; +#define glVertexAttrib4s glad_glVertexAttrib4s +GLAD_API_CALL PFNGLVERTEXATTRIB4SVPROC glad_glVertexAttrib4sv; +#define glVertexAttrib4sv glad_glVertexAttrib4sv +GLAD_API_CALL PFNGLVERTEXATTRIB4UBVPROC glad_glVertexAttrib4ubv; +#define glVertexAttrib4ubv glad_glVertexAttrib4ubv +GLAD_API_CALL PFNGLVERTEXATTRIB4UIVPROC glad_glVertexAttrib4uiv; +#define glVertexAttrib4uiv glad_glVertexAttrib4uiv +GLAD_API_CALL PFNGLVERTEXATTRIB4USVPROC glad_glVertexAttrib4usv; +#define glVertexAttrib4usv glad_glVertexAttrib4usv +GLAD_API_CALL PFNGLVERTEXATTRIBPOINTERPROC glad_glVertexAttribPointer; +#define glVertexAttribPointer glad_glVertexAttribPointer +GLAD_API_CALL PFNGLVERTEXPOINTERPROC glad_glVertexPointer; +#define glVertexPointer glad_glVertexPointer +GLAD_API_CALL PFNGLVIEWPORTPROC glad_glViewport; +#define glViewport glad_glViewport +GLAD_API_CALL PFNGLWINDOWPOS2DPROC glad_glWindowPos2d; +#define glWindowPos2d glad_glWindowPos2d +GLAD_API_CALL PFNGLWINDOWPOS2DVPROC glad_glWindowPos2dv; +#define glWindowPos2dv glad_glWindowPos2dv +GLAD_API_CALL PFNGLWINDOWPOS2FPROC glad_glWindowPos2f; +#define glWindowPos2f glad_glWindowPos2f +GLAD_API_CALL PFNGLWINDOWPOS2FVPROC glad_glWindowPos2fv; +#define glWindowPos2fv glad_glWindowPos2fv +GLAD_API_CALL PFNGLWINDOWPOS2IPROC glad_glWindowPos2i; +#define glWindowPos2i glad_glWindowPos2i +GLAD_API_CALL PFNGLWINDOWPOS2IVPROC glad_glWindowPos2iv; +#define glWindowPos2iv glad_glWindowPos2iv +GLAD_API_CALL PFNGLWINDOWPOS2SPROC glad_glWindowPos2s; +#define glWindowPos2s glad_glWindowPos2s +GLAD_API_CALL PFNGLWINDOWPOS2SVPROC glad_glWindowPos2sv; +#define glWindowPos2sv glad_glWindowPos2sv +GLAD_API_CALL PFNGLWINDOWPOS3DPROC glad_glWindowPos3d; +#define glWindowPos3d glad_glWindowPos3d +GLAD_API_CALL PFNGLWINDOWPOS3DVPROC glad_glWindowPos3dv; +#define glWindowPos3dv glad_glWindowPos3dv +GLAD_API_CALL PFNGLWINDOWPOS3FPROC glad_glWindowPos3f; +#define glWindowPos3f glad_glWindowPos3f +GLAD_API_CALL PFNGLWINDOWPOS3FVPROC glad_glWindowPos3fv; +#define glWindowPos3fv glad_glWindowPos3fv +GLAD_API_CALL PFNGLWINDOWPOS3IPROC glad_glWindowPos3i; +#define glWindowPos3i glad_glWindowPos3i +GLAD_API_CALL PFNGLWINDOWPOS3IVPROC glad_glWindowPos3iv; +#define glWindowPos3iv glad_glWindowPos3iv +GLAD_API_CALL PFNGLWINDOWPOS3SPROC glad_glWindowPos3s; +#define glWindowPos3s glad_glWindowPos3s +GLAD_API_CALL PFNGLWINDOWPOS3SVPROC glad_glWindowPos3sv; +#define glWindowPos3sv glad_glWindowPos3sv + + + + + +GLAD_API_CALL int gladLoadGLUserPtr( GLADuserptrloadfunc load, void *userptr); +GLAD_API_CALL int gladLoadGL( GLADloadfunc load); + + + +#ifdef __cplusplus +} +#endif +#endif diff --git a/glad/src/gl.c b/glad/src/gl.c new file mode 100644 index 0000000..626f030 --- /dev/null +++ b/glad/src/gl.c @@ -0,0 +1,1345 @@ +#include +#include +#include +#include + +#ifndef GLAD_IMPL_UTIL_C_ +#define GLAD_IMPL_UTIL_C_ + +#ifdef _MSC_VER +#define GLAD_IMPL_UTIL_SSCANF sscanf_s +#else +#define GLAD_IMPL_UTIL_SSCANF sscanf +#endif + +#endif /* GLAD_IMPL_UTIL_C_ */ + +#ifdef __cplusplus +extern "C" { +#endif + + + +int GLAD_GL_VERSION_1_0 = 0; +int GLAD_GL_VERSION_1_1 = 0; +int GLAD_GL_VERSION_1_2 = 0; +int GLAD_GL_VERSION_1_3 = 0; +int GLAD_GL_VERSION_1_4 = 0; +int GLAD_GL_VERSION_1_5 = 0; +int GLAD_GL_VERSION_2_0 = 0; +int GLAD_GL_VERSION_2_1 = 0; + + + +PFNGLACCUMPROC glad_glAccum = NULL; +PFNGLACTIVETEXTUREPROC glad_glActiveTexture = NULL; +PFNGLALPHAFUNCPROC glad_glAlphaFunc = NULL; +PFNGLARETEXTURESRESIDENTPROC glad_glAreTexturesResident = NULL; +PFNGLARRAYELEMENTPROC glad_glArrayElement = NULL; +PFNGLATTACHSHADERPROC glad_glAttachShader = NULL; +PFNGLBEGINPROC glad_glBegin = NULL; +PFNGLBEGINQUERYPROC glad_glBeginQuery = NULL; +PFNGLBINDATTRIBLOCATIONPROC glad_glBindAttribLocation = NULL; +PFNGLBINDBUFFERPROC glad_glBindBuffer = NULL; +PFNGLBINDTEXTUREPROC glad_glBindTexture = NULL; +PFNGLBITMAPPROC glad_glBitmap = NULL; +PFNGLBLENDCOLORPROC glad_glBlendColor = NULL; +PFNGLBLENDEQUATIONPROC glad_glBlendEquation = NULL; +PFNGLBLENDEQUATIONSEPARATEPROC glad_glBlendEquationSeparate = NULL; +PFNGLBLENDFUNCPROC glad_glBlendFunc = NULL; +PFNGLBLENDFUNCSEPARATEPROC glad_glBlendFuncSeparate = NULL; +PFNGLBUFFERDATAPROC glad_glBufferData = NULL; +PFNGLBUFFERSUBDATAPROC glad_glBufferSubData = NULL; +PFNGLCALLLISTPROC glad_glCallList = NULL; +PFNGLCALLLISTSPROC glad_glCallLists = NULL; +PFNGLCLEARPROC glad_glClear = NULL; +PFNGLCLEARACCUMPROC glad_glClearAccum = NULL; +PFNGLCLEARCOLORPROC glad_glClearColor = NULL; +PFNGLCLEARDEPTHPROC glad_glClearDepth = NULL; +PFNGLCLEARINDEXPROC glad_glClearIndex = NULL; +PFNGLCLEARSTENCILPROC glad_glClearStencil = NULL; +PFNGLCLIENTACTIVETEXTUREPROC glad_glClientActiveTexture = NULL; +PFNGLCLIPPLANEPROC glad_glClipPlane = NULL; +PFNGLCOLOR3BPROC glad_glColor3b = NULL; +PFNGLCOLOR3BVPROC glad_glColor3bv = NULL; +PFNGLCOLOR3DPROC glad_glColor3d = NULL; +PFNGLCOLOR3DVPROC glad_glColor3dv = NULL; +PFNGLCOLOR3FPROC glad_glColor3f = NULL; +PFNGLCOLOR3FVPROC glad_glColor3fv = NULL; +PFNGLCOLOR3IPROC glad_glColor3i = NULL; +PFNGLCOLOR3IVPROC glad_glColor3iv = NULL; +PFNGLCOLOR3SPROC glad_glColor3s = NULL; +PFNGLCOLOR3SVPROC glad_glColor3sv = NULL; +PFNGLCOLOR3UBPROC glad_glColor3ub = NULL; +PFNGLCOLOR3UBVPROC glad_glColor3ubv = NULL; +PFNGLCOLOR3UIPROC glad_glColor3ui = NULL; +PFNGLCOLOR3UIVPROC glad_glColor3uiv = NULL; +PFNGLCOLOR3USPROC glad_glColor3us = NULL; +PFNGLCOLOR3USVPROC glad_glColor3usv = NULL; +PFNGLCOLOR4BPROC glad_glColor4b = NULL; +PFNGLCOLOR4BVPROC glad_glColor4bv = NULL; +PFNGLCOLOR4DPROC glad_glColor4d = NULL; +PFNGLCOLOR4DVPROC glad_glColor4dv = NULL; +PFNGLCOLOR4FPROC glad_glColor4f = NULL; +PFNGLCOLOR4FVPROC glad_glColor4fv = NULL; +PFNGLCOLOR4IPROC glad_glColor4i = NULL; +PFNGLCOLOR4IVPROC glad_glColor4iv = NULL; +PFNGLCOLOR4SPROC glad_glColor4s = NULL; +PFNGLCOLOR4SVPROC glad_glColor4sv = NULL; +PFNGLCOLOR4UBPROC glad_glColor4ub = NULL; +PFNGLCOLOR4UBVPROC glad_glColor4ubv = NULL; +PFNGLCOLOR4UIPROC glad_glColor4ui = NULL; +PFNGLCOLOR4UIVPROC glad_glColor4uiv = NULL; +PFNGLCOLOR4USPROC glad_glColor4us = NULL; +PFNGLCOLOR4USVPROC glad_glColor4usv = NULL; +PFNGLCOLORMASKPROC glad_glColorMask = NULL; +PFNGLCOLORMATERIALPROC glad_glColorMaterial = NULL; +PFNGLCOLORPOINTERPROC glad_glColorPointer = NULL; +PFNGLCOMPILESHADERPROC glad_glCompileShader = NULL; +PFNGLCOMPRESSEDTEXIMAGE1DPROC glad_glCompressedTexImage1D = NULL; +PFNGLCOMPRESSEDTEXIMAGE2DPROC glad_glCompressedTexImage2D = NULL; +PFNGLCOMPRESSEDTEXIMAGE3DPROC glad_glCompressedTexImage3D = NULL; +PFNGLCOMPRESSEDTEXSUBIMAGE1DPROC glad_glCompressedTexSubImage1D = NULL; +PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC glad_glCompressedTexSubImage2D = NULL; +PFNGLCOMPRESSEDTEXSUBIMAGE3DPROC glad_glCompressedTexSubImage3D = NULL; +PFNGLCOPYPIXELSPROC glad_glCopyPixels = NULL; +PFNGLCOPYTEXIMAGE1DPROC glad_glCopyTexImage1D = NULL; +PFNGLCOPYTEXIMAGE2DPROC glad_glCopyTexImage2D = NULL; +PFNGLCOPYTEXSUBIMAGE1DPROC glad_glCopyTexSubImage1D = NULL; +PFNGLCOPYTEXSUBIMAGE2DPROC glad_glCopyTexSubImage2D = NULL; +PFNGLCOPYTEXSUBIMAGE3DPROC glad_glCopyTexSubImage3D = NULL; +PFNGLCREATEPROGRAMPROC glad_glCreateProgram = NULL; +PFNGLCREATESHADERPROC glad_glCreateShader = NULL; +PFNGLCULLFACEPROC glad_glCullFace = NULL; +PFNGLDELETEBUFFERSPROC glad_glDeleteBuffers = NULL; +PFNGLDELETELISTSPROC glad_glDeleteLists = NULL; +PFNGLDELETEPROGRAMPROC glad_glDeleteProgram = NULL; +PFNGLDELETEQUERIESPROC glad_glDeleteQueries = NULL; +PFNGLDELETESHADERPROC glad_glDeleteShader = NULL; +PFNGLDELETETEXTURESPROC glad_glDeleteTextures = NULL; +PFNGLDEPTHFUNCPROC glad_glDepthFunc = NULL; +PFNGLDEPTHMASKPROC glad_glDepthMask = NULL; +PFNGLDEPTHRANGEPROC glad_glDepthRange = NULL; +PFNGLDETACHSHADERPROC glad_glDetachShader = NULL; +PFNGLDISABLEPROC glad_glDisable = NULL; +PFNGLDISABLECLIENTSTATEPROC glad_glDisableClientState = NULL; +PFNGLDISABLEVERTEXATTRIBARRAYPROC glad_glDisableVertexAttribArray = NULL; +PFNGLDRAWARRAYSPROC glad_glDrawArrays = NULL; +PFNGLDRAWBUFFERPROC glad_glDrawBuffer = NULL; +PFNGLDRAWBUFFERSPROC glad_glDrawBuffers = NULL; +PFNGLDRAWELEMENTSPROC glad_glDrawElements = NULL; +PFNGLDRAWPIXELSPROC glad_glDrawPixels = NULL; +PFNGLDRAWRANGEELEMENTSPROC glad_glDrawRangeElements = NULL; +PFNGLEDGEFLAGPROC glad_glEdgeFlag = NULL; +PFNGLEDGEFLAGPOINTERPROC glad_glEdgeFlagPointer = NULL; +PFNGLEDGEFLAGVPROC glad_glEdgeFlagv = NULL; +PFNGLENABLEPROC glad_glEnable = NULL; +PFNGLENABLECLIENTSTATEPROC glad_glEnableClientState = NULL; +PFNGLENABLEVERTEXATTRIBARRAYPROC glad_glEnableVertexAttribArray = NULL; +PFNGLENDPROC glad_glEnd = NULL; +PFNGLENDLISTPROC glad_glEndList = NULL; +PFNGLENDQUERYPROC glad_glEndQuery = NULL; +PFNGLEVALCOORD1DPROC glad_glEvalCoord1d = NULL; +PFNGLEVALCOORD1DVPROC glad_glEvalCoord1dv = NULL; +PFNGLEVALCOORD1FPROC glad_glEvalCoord1f = NULL; +PFNGLEVALCOORD1FVPROC glad_glEvalCoord1fv = NULL; +PFNGLEVALCOORD2DPROC glad_glEvalCoord2d = NULL; +PFNGLEVALCOORD2DVPROC glad_glEvalCoord2dv = NULL; +PFNGLEVALCOORD2FPROC glad_glEvalCoord2f = NULL; +PFNGLEVALCOORD2FVPROC glad_glEvalCoord2fv = NULL; +PFNGLEVALMESH1PROC glad_glEvalMesh1 = NULL; +PFNGLEVALMESH2PROC glad_glEvalMesh2 = NULL; +PFNGLEVALPOINT1PROC glad_glEvalPoint1 = NULL; +PFNGLEVALPOINT2PROC glad_glEvalPoint2 = NULL; +PFNGLFEEDBACKBUFFERPROC glad_glFeedbackBuffer = NULL; +PFNGLFINISHPROC glad_glFinish = NULL; +PFNGLFLUSHPROC glad_glFlush = NULL; +PFNGLFOGCOORDPOINTERPROC glad_glFogCoordPointer = NULL; +PFNGLFOGCOORDDPROC glad_glFogCoordd = NULL; +PFNGLFOGCOORDDVPROC glad_glFogCoorddv = NULL; +PFNGLFOGCOORDFPROC glad_glFogCoordf = NULL; +PFNGLFOGCOORDFVPROC glad_glFogCoordfv = NULL; +PFNGLFOGFPROC glad_glFogf = NULL; +PFNGLFOGFVPROC glad_glFogfv = NULL; +PFNGLFOGIPROC glad_glFogi = NULL; +PFNGLFOGIVPROC glad_glFogiv = NULL; +PFNGLFRONTFACEPROC glad_glFrontFace = NULL; +PFNGLFRUSTUMPROC glad_glFrustum = NULL; +PFNGLGENBUFFERSPROC glad_glGenBuffers = NULL; +PFNGLGENLISTSPROC glad_glGenLists = NULL; +PFNGLGENQUERIESPROC glad_glGenQueries = NULL; +PFNGLGENTEXTURESPROC glad_glGenTextures = NULL; +PFNGLGETACTIVEATTRIBPROC glad_glGetActiveAttrib = NULL; +PFNGLGETACTIVEUNIFORMPROC glad_glGetActiveUniform = NULL; +PFNGLGETATTACHEDSHADERSPROC glad_glGetAttachedShaders = NULL; +PFNGLGETATTRIBLOCATIONPROC glad_glGetAttribLocation = NULL; +PFNGLGETBOOLEANVPROC glad_glGetBooleanv = NULL; +PFNGLGETBUFFERPARAMETERIVPROC glad_glGetBufferParameteriv = NULL; +PFNGLGETBUFFERPOINTERVPROC glad_glGetBufferPointerv = NULL; +PFNGLGETBUFFERSUBDATAPROC glad_glGetBufferSubData = NULL; +PFNGLGETCLIPPLANEPROC glad_glGetClipPlane = NULL; +PFNGLGETCOMPRESSEDTEXIMAGEPROC glad_glGetCompressedTexImage = NULL; +PFNGLGETDOUBLEVPROC glad_glGetDoublev = NULL; +PFNGLGETERRORPROC glad_glGetError = NULL; +PFNGLGETFLOATVPROC glad_glGetFloatv = NULL; +PFNGLGETINTEGERVPROC glad_glGetIntegerv = NULL; +PFNGLGETLIGHTFVPROC glad_glGetLightfv = NULL; +PFNGLGETLIGHTIVPROC glad_glGetLightiv = NULL; +PFNGLGETMAPDVPROC glad_glGetMapdv = NULL; +PFNGLGETMAPFVPROC glad_glGetMapfv = NULL; +PFNGLGETMAPIVPROC glad_glGetMapiv = NULL; +PFNGLGETMATERIALFVPROC glad_glGetMaterialfv = NULL; +PFNGLGETMATERIALIVPROC glad_glGetMaterialiv = NULL; +PFNGLGETPIXELMAPFVPROC glad_glGetPixelMapfv = NULL; +PFNGLGETPIXELMAPUIVPROC glad_glGetPixelMapuiv = NULL; +PFNGLGETPIXELMAPUSVPROC glad_glGetPixelMapusv = NULL; +PFNGLGETPOINTERVPROC glad_glGetPointerv = NULL; +PFNGLGETPOLYGONSTIPPLEPROC glad_glGetPolygonStipple = NULL; +PFNGLGETPROGRAMINFOLOGPROC glad_glGetProgramInfoLog = NULL; +PFNGLGETPROGRAMIVPROC glad_glGetProgramiv = NULL; +PFNGLGETQUERYOBJECTIVPROC glad_glGetQueryObjectiv = NULL; +PFNGLGETQUERYOBJECTUIVPROC glad_glGetQueryObjectuiv = NULL; +PFNGLGETQUERYIVPROC glad_glGetQueryiv = NULL; +PFNGLGETSHADERINFOLOGPROC glad_glGetShaderInfoLog = NULL; +PFNGLGETSHADERSOURCEPROC glad_glGetShaderSource = NULL; +PFNGLGETSHADERIVPROC glad_glGetShaderiv = NULL; +PFNGLGETSTRINGPROC glad_glGetString = NULL; +PFNGLGETTEXENVFVPROC glad_glGetTexEnvfv = NULL; +PFNGLGETTEXENVIVPROC glad_glGetTexEnviv = NULL; +PFNGLGETTEXGENDVPROC glad_glGetTexGendv = NULL; +PFNGLGETTEXGENFVPROC glad_glGetTexGenfv = NULL; +PFNGLGETTEXGENIVPROC glad_glGetTexGeniv = NULL; +PFNGLGETTEXIMAGEPROC glad_glGetTexImage = NULL; +PFNGLGETTEXLEVELPARAMETERFVPROC glad_glGetTexLevelParameterfv = NULL; +PFNGLGETTEXLEVELPARAMETERIVPROC glad_glGetTexLevelParameteriv = NULL; +PFNGLGETTEXPARAMETERFVPROC glad_glGetTexParameterfv = NULL; +PFNGLGETTEXPARAMETERIVPROC glad_glGetTexParameteriv = NULL; +PFNGLGETUNIFORMLOCATIONPROC glad_glGetUniformLocation = NULL; +PFNGLGETUNIFORMFVPROC glad_glGetUniformfv = NULL; +PFNGLGETUNIFORMIVPROC glad_glGetUniformiv = NULL; +PFNGLGETVERTEXATTRIBPOINTERVPROC glad_glGetVertexAttribPointerv = NULL; +PFNGLGETVERTEXATTRIBDVPROC glad_glGetVertexAttribdv = NULL; +PFNGLGETVERTEXATTRIBFVPROC glad_glGetVertexAttribfv = NULL; +PFNGLGETVERTEXATTRIBIVPROC glad_glGetVertexAttribiv = NULL; +PFNGLHINTPROC glad_glHint = NULL; +PFNGLINDEXMASKPROC glad_glIndexMask = NULL; +PFNGLINDEXPOINTERPROC glad_glIndexPointer = NULL; +PFNGLINDEXDPROC glad_glIndexd = NULL; +PFNGLINDEXDVPROC glad_glIndexdv = NULL; +PFNGLINDEXFPROC glad_glIndexf = NULL; +PFNGLINDEXFVPROC glad_glIndexfv = NULL; +PFNGLINDEXIPROC glad_glIndexi = NULL; +PFNGLINDEXIVPROC glad_glIndexiv = NULL; +PFNGLINDEXSPROC glad_glIndexs = NULL; +PFNGLINDEXSVPROC glad_glIndexsv = NULL; +PFNGLINDEXUBPROC glad_glIndexub = NULL; +PFNGLINDEXUBVPROC glad_glIndexubv = NULL; +PFNGLINITNAMESPROC glad_glInitNames = NULL; +PFNGLINTERLEAVEDARRAYSPROC glad_glInterleavedArrays = NULL; +PFNGLISBUFFERPROC glad_glIsBuffer = NULL; +PFNGLISENABLEDPROC glad_glIsEnabled = NULL; +PFNGLISLISTPROC glad_glIsList = NULL; +PFNGLISPROGRAMPROC glad_glIsProgram = NULL; +PFNGLISQUERYPROC glad_glIsQuery = NULL; +PFNGLISSHADERPROC glad_glIsShader = NULL; +PFNGLISTEXTUREPROC glad_glIsTexture = NULL; +PFNGLLIGHTMODELFPROC glad_glLightModelf = NULL; +PFNGLLIGHTMODELFVPROC glad_glLightModelfv = NULL; +PFNGLLIGHTMODELIPROC glad_glLightModeli = NULL; +PFNGLLIGHTMODELIVPROC glad_glLightModeliv = NULL; +PFNGLLIGHTFPROC glad_glLightf = NULL; +PFNGLLIGHTFVPROC glad_glLightfv = NULL; +PFNGLLIGHTIPROC glad_glLighti = NULL; +PFNGLLIGHTIVPROC glad_glLightiv = NULL; +PFNGLLINESTIPPLEPROC glad_glLineStipple = NULL; +PFNGLLINEWIDTHPROC glad_glLineWidth = NULL; +PFNGLLINKPROGRAMPROC glad_glLinkProgram = NULL; +PFNGLLISTBASEPROC glad_glListBase = NULL; +PFNGLLOADIDENTITYPROC glad_glLoadIdentity = NULL; +PFNGLLOADMATRIXDPROC glad_glLoadMatrixd = NULL; +PFNGLLOADMATRIXFPROC glad_glLoadMatrixf = NULL; +PFNGLLOADNAMEPROC glad_glLoadName = NULL; +PFNGLLOADTRANSPOSEMATRIXDPROC glad_glLoadTransposeMatrixd = NULL; +PFNGLLOADTRANSPOSEMATRIXFPROC glad_glLoadTransposeMatrixf = NULL; +PFNGLLOGICOPPROC glad_glLogicOp = NULL; +PFNGLMAP1DPROC glad_glMap1d = NULL; +PFNGLMAP1FPROC glad_glMap1f = NULL; +PFNGLMAP2DPROC glad_glMap2d = NULL; +PFNGLMAP2FPROC glad_glMap2f = NULL; +PFNGLMAPBUFFERPROC glad_glMapBuffer = NULL; +PFNGLMAPGRID1DPROC glad_glMapGrid1d = NULL; +PFNGLMAPGRID1FPROC glad_glMapGrid1f = NULL; +PFNGLMAPGRID2DPROC glad_glMapGrid2d = NULL; +PFNGLMAPGRID2FPROC glad_glMapGrid2f = NULL; +PFNGLMATERIALFPROC glad_glMaterialf = NULL; +PFNGLMATERIALFVPROC glad_glMaterialfv = NULL; +PFNGLMATERIALIPROC glad_glMateriali = NULL; +PFNGLMATERIALIVPROC glad_glMaterialiv = NULL; +PFNGLMATRIXMODEPROC glad_glMatrixMode = NULL; +PFNGLMULTMATRIXDPROC glad_glMultMatrixd = NULL; +PFNGLMULTMATRIXFPROC glad_glMultMatrixf = NULL; +PFNGLMULTTRANSPOSEMATRIXDPROC glad_glMultTransposeMatrixd = NULL; +PFNGLMULTTRANSPOSEMATRIXFPROC glad_glMultTransposeMatrixf = NULL; +PFNGLMULTIDRAWARRAYSPROC glad_glMultiDrawArrays = NULL; +PFNGLMULTIDRAWELEMENTSPROC glad_glMultiDrawElements = NULL; +PFNGLMULTITEXCOORD1DPROC glad_glMultiTexCoord1d = NULL; +PFNGLMULTITEXCOORD1DVPROC glad_glMultiTexCoord1dv = NULL; +PFNGLMULTITEXCOORD1FPROC glad_glMultiTexCoord1f = NULL; +PFNGLMULTITEXCOORD1FVPROC glad_glMultiTexCoord1fv = NULL; +PFNGLMULTITEXCOORD1IPROC glad_glMultiTexCoord1i = NULL; +PFNGLMULTITEXCOORD1IVPROC glad_glMultiTexCoord1iv = NULL; +PFNGLMULTITEXCOORD1SPROC glad_glMultiTexCoord1s = NULL; +PFNGLMULTITEXCOORD1SVPROC glad_glMultiTexCoord1sv = NULL; +PFNGLMULTITEXCOORD2DPROC glad_glMultiTexCoord2d = NULL; +PFNGLMULTITEXCOORD2DVPROC glad_glMultiTexCoord2dv = NULL; +PFNGLMULTITEXCOORD2FPROC glad_glMultiTexCoord2f = NULL; +PFNGLMULTITEXCOORD2FVPROC glad_glMultiTexCoord2fv = NULL; +PFNGLMULTITEXCOORD2IPROC glad_glMultiTexCoord2i = NULL; +PFNGLMULTITEXCOORD2IVPROC glad_glMultiTexCoord2iv = NULL; +PFNGLMULTITEXCOORD2SPROC glad_glMultiTexCoord2s = NULL; +PFNGLMULTITEXCOORD2SVPROC glad_glMultiTexCoord2sv = NULL; +PFNGLMULTITEXCOORD3DPROC glad_glMultiTexCoord3d = NULL; +PFNGLMULTITEXCOORD3DVPROC glad_glMultiTexCoord3dv = NULL; +PFNGLMULTITEXCOORD3FPROC glad_glMultiTexCoord3f = NULL; +PFNGLMULTITEXCOORD3FVPROC glad_glMultiTexCoord3fv = NULL; +PFNGLMULTITEXCOORD3IPROC glad_glMultiTexCoord3i = NULL; +PFNGLMULTITEXCOORD3IVPROC glad_glMultiTexCoord3iv = NULL; +PFNGLMULTITEXCOORD3SPROC glad_glMultiTexCoord3s = NULL; +PFNGLMULTITEXCOORD3SVPROC glad_glMultiTexCoord3sv = NULL; +PFNGLMULTITEXCOORD4DPROC glad_glMultiTexCoord4d = NULL; +PFNGLMULTITEXCOORD4DVPROC glad_glMultiTexCoord4dv = NULL; +PFNGLMULTITEXCOORD4FPROC glad_glMultiTexCoord4f = NULL; +PFNGLMULTITEXCOORD4FVPROC glad_glMultiTexCoord4fv = NULL; +PFNGLMULTITEXCOORD4IPROC glad_glMultiTexCoord4i = NULL; +PFNGLMULTITEXCOORD4IVPROC glad_glMultiTexCoord4iv = NULL; +PFNGLMULTITEXCOORD4SPROC glad_glMultiTexCoord4s = NULL; +PFNGLMULTITEXCOORD4SVPROC glad_glMultiTexCoord4sv = NULL; +PFNGLNEWLISTPROC glad_glNewList = NULL; +PFNGLNORMAL3BPROC glad_glNormal3b = NULL; +PFNGLNORMAL3BVPROC glad_glNormal3bv = NULL; +PFNGLNORMAL3DPROC glad_glNormal3d = NULL; +PFNGLNORMAL3DVPROC glad_glNormal3dv = NULL; +PFNGLNORMAL3FPROC glad_glNormal3f = NULL; +PFNGLNORMAL3FVPROC glad_glNormal3fv = NULL; +PFNGLNORMAL3IPROC glad_glNormal3i = NULL; +PFNGLNORMAL3IVPROC glad_glNormal3iv = NULL; +PFNGLNORMAL3SPROC glad_glNormal3s = NULL; +PFNGLNORMAL3SVPROC glad_glNormal3sv = NULL; +PFNGLNORMALPOINTERPROC glad_glNormalPointer = NULL; +PFNGLORTHOPROC glad_glOrtho = NULL; +PFNGLPASSTHROUGHPROC glad_glPassThrough = NULL; +PFNGLPIXELMAPFVPROC glad_glPixelMapfv = NULL; +PFNGLPIXELMAPUIVPROC glad_glPixelMapuiv = NULL; +PFNGLPIXELMAPUSVPROC glad_glPixelMapusv = NULL; +PFNGLPIXELSTOREFPROC glad_glPixelStoref = NULL; +PFNGLPIXELSTOREIPROC glad_glPixelStorei = NULL; +PFNGLPIXELTRANSFERFPROC glad_glPixelTransferf = NULL; +PFNGLPIXELTRANSFERIPROC glad_glPixelTransferi = NULL; +PFNGLPIXELZOOMPROC glad_glPixelZoom = NULL; +PFNGLPOINTPARAMETERFPROC glad_glPointParameterf = NULL; +PFNGLPOINTPARAMETERFVPROC glad_glPointParameterfv = NULL; +PFNGLPOINTPARAMETERIPROC glad_glPointParameteri = NULL; +PFNGLPOINTPARAMETERIVPROC glad_glPointParameteriv = NULL; +PFNGLPOINTSIZEPROC glad_glPointSize = NULL; +PFNGLPOLYGONMODEPROC glad_glPolygonMode = NULL; +PFNGLPOLYGONOFFSETPROC glad_glPolygonOffset = NULL; +PFNGLPOLYGONSTIPPLEPROC glad_glPolygonStipple = NULL; +PFNGLPOPATTRIBPROC glad_glPopAttrib = NULL; +PFNGLPOPCLIENTATTRIBPROC glad_glPopClientAttrib = NULL; +PFNGLPOPMATRIXPROC glad_glPopMatrix = NULL; +PFNGLPOPNAMEPROC glad_glPopName = NULL; +PFNGLPRIORITIZETEXTURESPROC glad_glPrioritizeTextures = NULL; +PFNGLPUSHATTRIBPROC glad_glPushAttrib = NULL; +PFNGLPUSHCLIENTATTRIBPROC glad_glPushClientAttrib = NULL; +PFNGLPUSHMATRIXPROC glad_glPushMatrix = NULL; +PFNGLPUSHNAMEPROC glad_glPushName = NULL; +PFNGLRASTERPOS2DPROC glad_glRasterPos2d = NULL; +PFNGLRASTERPOS2DVPROC glad_glRasterPos2dv = NULL; +PFNGLRASTERPOS2FPROC glad_glRasterPos2f = NULL; +PFNGLRASTERPOS2FVPROC glad_glRasterPos2fv = NULL; +PFNGLRASTERPOS2IPROC glad_glRasterPos2i = NULL; +PFNGLRASTERPOS2IVPROC glad_glRasterPos2iv = NULL; +PFNGLRASTERPOS2SPROC glad_glRasterPos2s = NULL; +PFNGLRASTERPOS2SVPROC glad_glRasterPos2sv = NULL; +PFNGLRASTERPOS3DPROC glad_glRasterPos3d = NULL; +PFNGLRASTERPOS3DVPROC glad_glRasterPos3dv = NULL; +PFNGLRASTERPOS3FPROC glad_glRasterPos3f = NULL; +PFNGLRASTERPOS3FVPROC glad_glRasterPos3fv = NULL; +PFNGLRASTERPOS3IPROC glad_glRasterPos3i = NULL; +PFNGLRASTERPOS3IVPROC glad_glRasterPos3iv = NULL; +PFNGLRASTERPOS3SPROC glad_glRasterPos3s = NULL; +PFNGLRASTERPOS3SVPROC glad_glRasterPos3sv = NULL; +PFNGLRASTERPOS4DPROC glad_glRasterPos4d = NULL; +PFNGLRASTERPOS4DVPROC glad_glRasterPos4dv = NULL; +PFNGLRASTERPOS4FPROC glad_glRasterPos4f = NULL; +PFNGLRASTERPOS4FVPROC glad_glRasterPos4fv = NULL; +PFNGLRASTERPOS4IPROC glad_glRasterPos4i = NULL; +PFNGLRASTERPOS4IVPROC glad_glRasterPos4iv = NULL; +PFNGLRASTERPOS4SPROC glad_glRasterPos4s = NULL; +PFNGLRASTERPOS4SVPROC glad_glRasterPos4sv = NULL; +PFNGLREADBUFFERPROC glad_glReadBuffer = NULL; +PFNGLREADPIXELSPROC glad_glReadPixels = NULL; +PFNGLRECTDPROC glad_glRectd = NULL; +PFNGLRECTDVPROC glad_glRectdv = NULL; +PFNGLRECTFPROC glad_glRectf = NULL; +PFNGLRECTFVPROC glad_glRectfv = NULL; +PFNGLRECTIPROC glad_glRecti = NULL; +PFNGLRECTIVPROC glad_glRectiv = NULL; +PFNGLRECTSPROC glad_glRects = NULL; +PFNGLRECTSVPROC glad_glRectsv = NULL; +PFNGLRENDERMODEPROC glad_glRenderMode = NULL; +PFNGLROTATEDPROC glad_glRotated = NULL; +PFNGLROTATEFPROC glad_glRotatef = NULL; +PFNGLSAMPLECOVERAGEPROC glad_glSampleCoverage = NULL; +PFNGLSCALEDPROC glad_glScaled = NULL; +PFNGLSCALEFPROC glad_glScalef = NULL; +PFNGLSCISSORPROC glad_glScissor = NULL; +PFNGLSECONDARYCOLOR3BPROC glad_glSecondaryColor3b = NULL; +PFNGLSECONDARYCOLOR3BVPROC glad_glSecondaryColor3bv = NULL; +PFNGLSECONDARYCOLOR3DPROC glad_glSecondaryColor3d = NULL; +PFNGLSECONDARYCOLOR3DVPROC glad_glSecondaryColor3dv = NULL; +PFNGLSECONDARYCOLOR3FPROC glad_glSecondaryColor3f = NULL; +PFNGLSECONDARYCOLOR3FVPROC glad_glSecondaryColor3fv = NULL; +PFNGLSECONDARYCOLOR3IPROC glad_glSecondaryColor3i = NULL; +PFNGLSECONDARYCOLOR3IVPROC glad_glSecondaryColor3iv = NULL; +PFNGLSECONDARYCOLOR3SPROC glad_glSecondaryColor3s = NULL; +PFNGLSECONDARYCOLOR3SVPROC glad_glSecondaryColor3sv = NULL; +PFNGLSECONDARYCOLOR3UBPROC glad_glSecondaryColor3ub = NULL; +PFNGLSECONDARYCOLOR3UBVPROC glad_glSecondaryColor3ubv = NULL; +PFNGLSECONDARYCOLOR3UIPROC glad_glSecondaryColor3ui = NULL; +PFNGLSECONDARYCOLOR3UIVPROC glad_glSecondaryColor3uiv = NULL; +PFNGLSECONDARYCOLOR3USPROC glad_glSecondaryColor3us = NULL; +PFNGLSECONDARYCOLOR3USVPROC glad_glSecondaryColor3usv = NULL; +PFNGLSECONDARYCOLORPOINTERPROC glad_glSecondaryColorPointer = NULL; +PFNGLSELECTBUFFERPROC glad_glSelectBuffer = NULL; +PFNGLSHADEMODELPROC glad_glShadeModel = NULL; +PFNGLSHADERSOURCEPROC glad_glShaderSource = NULL; +PFNGLSTENCILFUNCPROC glad_glStencilFunc = NULL; +PFNGLSTENCILFUNCSEPARATEPROC glad_glStencilFuncSeparate = NULL; +PFNGLSTENCILMASKPROC glad_glStencilMask = NULL; +PFNGLSTENCILMASKSEPARATEPROC glad_glStencilMaskSeparate = NULL; +PFNGLSTENCILOPPROC glad_glStencilOp = NULL; +PFNGLSTENCILOPSEPARATEPROC glad_glStencilOpSeparate = NULL; +PFNGLTEXCOORD1DPROC glad_glTexCoord1d = NULL; +PFNGLTEXCOORD1DVPROC glad_glTexCoord1dv = NULL; +PFNGLTEXCOORD1FPROC glad_glTexCoord1f = NULL; +PFNGLTEXCOORD1FVPROC glad_glTexCoord1fv = NULL; +PFNGLTEXCOORD1IPROC glad_glTexCoord1i = NULL; +PFNGLTEXCOORD1IVPROC glad_glTexCoord1iv = NULL; +PFNGLTEXCOORD1SPROC glad_glTexCoord1s = NULL; +PFNGLTEXCOORD1SVPROC glad_glTexCoord1sv = NULL; +PFNGLTEXCOORD2DPROC glad_glTexCoord2d = NULL; +PFNGLTEXCOORD2DVPROC glad_glTexCoord2dv = NULL; +PFNGLTEXCOORD2FPROC glad_glTexCoord2f = NULL; +PFNGLTEXCOORD2FVPROC glad_glTexCoord2fv = NULL; +PFNGLTEXCOORD2IPROC glad_glTexCoord2i = NULL; +PFNGLTEXCOORD2IVPROC glad_glTexCoord2iv = NULL; +PFNGLTEXCOORD2SPROC glad_glTexCoord2s = NULL; +PFNGLTEXCOORD2SVPROC glad_glTexCoord2sv = NULL; +PFNGLTEXCOORD3DPROC glad_glTexCoord3d = NULL; +PFNGLTEXCOORD3DVPROC glad_glTexCoord3dv = NULL; +PFNGLTEXCOORD3FPROC glad_glTexCoord3f = NULL; +PFNGLTEXCOORD3FVPROC glad_glTexCoord3fv = NULL; +PFNGLTEXCOORD3IPROC glad_glTexCoord3i = NULL; +PFNGLTEXCOORD3IVPROC glad_glTexCoord3iv = NULL; +PFNGLTEXCOORD3SPROC glad_glTexCoord3s = NULL; +PFNGLTEXCOORD3SVPROC glad_glTexCoord3sv = NULL; +PFNGLTEXCOORD4DPROC glad_glTexCoord4d = NULL; +PFNGLTEXCOORD4DVPROC glad_glTexCoord4dv = NULL; +PFNGLTEXCOORD4FPROC glad_glTexCoord4f = NULL; +PFNGLTEXCOORD4FVPROC glad_glTexCoord4fv = NULL; +PFNGLTEXCOORD4IPROC glad_glTexCoord4i = NULL; +PFNGLTEXCOORD4IVPROC glad_glTexCoord4iv = NULL; +PFNGLTEXCOORD4SPROC glad_glTexCoord4s = NULL; +PFNGLTEXCOORD4SVPROC glad_glTexCoord4sv = NULL; +PFNGLTEXCOORDPOINTERPROC glad_glTexCoordPointer = NULL; +PFNGLTEXENVFPROC glad_glTexEnvf = NULL; +PFNGLTEXENVFVPROC glad_glTexEnvfv = NULL; +PFNGLTEXENVIPROC glad_glTexEnvi = NULL; +PFNGLTEXENVIVPROC glad_glTexEnviv = NULL; +PFNGLTEXGENDPROC glad_glTexGend = NULL; +PFNGLTEXGENDVPROC glad_glTexGendv = NULL; +PFNGLTEXGENFPROC glad_glTexGenf = NULL; +PFNGLTEXGENFVPROC glad_glTexGenfv = NULL; +PFNGLTEXGENIPROC glad_glTexGeni = NULL; +PFNGLTEXGENIVPROC glad_glTexGeniv = NULL; +PFNGLTEXIMAGE1DPROC glad_glTexImage1D = NULL; +PFNGLTEXIMAGE2DPROC glad_glTexImage2D = NULL; +PFNGLTEXIMAGE3DPROC glad_glTexImage3D = NULL; +PFNGLTEXPARAMETERFPROC glad_glTexParameterf = NULL; +PFNGLTEXPARAMETERFVPROC glad_glTexParameterfv = NULL; +PFNGLTEXPARAMETERIPROC glad_glTexParameteri = NULL; +PFNGLTEXPARAMETERIVPROC glad_glTexParameteriv = NULL; +PFNGLTEXSUBIMAGE1DPROC glad_glTexSubImage1D = NULL; +PFNGLTEXSUBIMAGE2DPROC glad_glTexSubImage2D = NULL; +PFNGLTEXSUBIMAGE3DPROC glad_glTexSubImage3D = NULL; +PFNGLTRANSLATEDPROC glad_glTranslated = NULL; +PFNGLTRANSLATEFPROC glad_glTranslatef = NULL; +PFNGLUNIFORM1FPROC glad_glUniform1f = NULL; +PFNGLUNIFORM1FVPROC glad_glUniform1fv = NULL; +PFNGLUNIFORM1IPROC glad_glUniform1i = NULL; +PFNGLUNIFORM1IVPROC glad_glUniform1iv = NULL; +PFNGLUNIFORM2FPROC glad_glUniform2f = NULL; +PFNGLUNIFORM2FVPROC glad_glUniform2fv = NULL; +PFNGLUNIFORM2IPROC glad_glUniform2i = NULL; +PFNGLUNIFORM2IVPROC glad_glUniform2iv = NULL; +PFNGLUNIFORM3FPROC glad_glUniform3f = NULL; +PFNGLUNIFORM3FVPROC glad_glUniform3fv = NULL; +PFNGLUNIFORM3IPROC glad_glUniform3i = NULL; +PFNGLUNIFORM3IVPROC glad_glUniform3iv = NULL; +PFNGLUNIFORM4FPROC glad_glUniform4f = NULL; +PFNGLUNIFORM4FVPROC glad_glUniform4fv = NULL; +PFNGLUNIFORM4IPROC glad_glUniform4i = NULL; +PFNGLUNIFORM4IVPROC glad_glUniform4iv = NULL; +PFNGLUNIFORMMATRIX2FVPROC glad_glUniformMatrix2fv = NULL; +PFNGLUNIFORMMATRIX2X3FVPROC glad_glUniformMatrix2x3fv = NULL; +PFNGLUNIFORMMATRIX2X4FVPROC glad_glUniformMatrix2x4fv = NULL; +PFNGLUNIFORMMATRIX3FVPROC glad_glUniformMatrix3fv = NULL; +PFNGLUNIFORMMATRIX3X2FVPROC glad_glUniformMatrix3x2fv = NULL; +PFNGLUNIFORMMATRIX3X4FVPROC glad_glUniformMatrix3x4fv = NULL; +PFNGLUNIFORMMATRIX4FVPROC glad_glUniformMatrix4fv = NULL; +PFNGLUNIFORMMATRIX4X2FVPROC glad_glUniformMatrix4x2fv = NULL; +PFNGLUNIFORMMATRIX4X3FVPROC glad_glUniformMatrix4x3fv = NULL; +PFNGLUNMAPBUFFERPROC glad_glUnmapBuffer = NULL; +PFNGLUSEPROGRAMPROC glad_glUseProgram = NULL; +PFNGLVALIDATEPROGRAMPROC glad_glValidateProgram = NULL; +PFNGLVERTEX2DPROC glad_glVertex2d = NULL; +PFNGLVERTEX2DVPROC glad_glVertex2dv = NULL; +PFNGLVERTEX2FPROC glad_glVertex2f = NULL; +PFNGLVERTEX2FVPROC glad_glVertex2fv = NULL; +PFNGLVERTEX2IPROC glad_glVertex2i = NULL; +PFNGLVERTEX2IVPROC glad_glVertex2iv = NULL; +PFNGLVERTEX2SPROC glad_glVertex2s = NULL; +PFNGLVERTEX2SVPROC glad_glVertex2sv = NULL; +PFNGLVERTEX3DPROC glad_glVertex3d = NULL; +PFNGLVERTEX3DVPROC glad_glVertex3dv = NULL; +PFNGLVERTEX3FPROC glad_glVertex3f = NULL; +PFNGLVERTEX3FVPROC glad_glVertex3fv = NULL; +PFNGLVERTEX3IPROC glad_glVertex3i = NULL; +PFNGLVERTEX3IVPROC glad_glVertex3iv = NULL; +PFNGLVERTEX3SPROC glad_glVertex3s = NULL; +PFNGLVERTEX3SVPROC glad_glVertex3sv = NULL; +PFNGLVERTEX4DPROC glad_glVertex4d = NULL; +PFNGLVERTEX4DVPROC glad_glVertex4dv = NULL; +PFNGLVERTEX4FPROC glad_glVertex4f = NULL; +PFNGLVERTEX4FVPROC glad_glVertex4fv = NULL; +PFNGLVERTEX4IPROC glad_glVertex4i = NULL; +PFNGLVERTEX4IVPROC glad_glVertex4iv = NULL; +PFNGLVERTEX4SPROC glad_glVertex4s = NULL; +PFNGLVERTEX4SVPROC glad_glVertex4sv = NULL; +PFNGLVERTEXATTRIB1DPROC glad_glVertexAttrib1d = NULL; +PFNGLVERTEXATTRIB1DVPROC glad_glVertexAttrib1dv = NULL; +PFNGLVERTEXATTRIB1FPROC glad_glVertexAttrib1f = NULL; +PFNGLVERTEXATTRIB1FVPROC glad_glVertexAttrib1fv = NULL; +PFNGLVERTEXATTRIB1SPROC glad_glVertexAttrib1s = NULL; +PFNGLVERTEXATTRIB1SVPROC glad_glVertexAttrib1sv = NULL; +PFNGLVERTEXATTRIB2DPROC glad_glVertexAttrib2d = NULL; +PFNGLVERTEXATTRIB2DVPROC glad_glVertexAttrib2dv = NULL; +PFNGLVERTEXATTRIB2FPROC glad_glVertexAttrib2f = NULL; +PFNGLVERTEXATTRIB2FVPROC glad_glVertexAttrib2fv = NULL; +PFNGLVERTEXATTRIB2SPROC glad_glVertexAttrib2s = NULL; +PFNGLVERTEXATTRIB2SVPROC glad_glVertexAttrib2sv = NULL; +PFNGLVERTEXATTRIB3DPROC glad_glVertexAttrib3d = NULL; +PFNGLVERTEXATTRIB3DVPROC glad_glVertexAttrib3dv = NULL; +PFNGLVERTEXATTRIB3FPROC glad_glVertexAttrib3f = NULL; +PFNGLVERTEXATTRIB3FVPROC glad_glVertexAttrib3fv = NULL; +PFNGLVERTEXATTRIB3SPROC glad_glVertexAttrib3s = NULL; +PFNGLVERTEXATTRIB3SVPROC glad_glVertexAttrib3sv = NULL; +PFNGLVERTEXATTRIB4NBVPROC glad_glVertexAttrib4Nbv = NULL; +PFNGLVERTEXATTRIB4NIVPROC glad_glVertexAttrib4Niv = NULL; +PFNGLVERTEXATTRIB4NSVPROC glad_glVertexAttrib4Nsv = NULL; +PFNGLVERTEXATTRIB4NUBPROC glad_glVertexAttrib4Nub = NULL; +PFNGLVERTEXATTRIB4NUBVPROC glad_glVertexAttrib4Nubv = NULL; +PFNGLVERTEXATTRIB4NUIVPROC glad_glVertexAttrib4Nuiv = NULL; +PFNGLVERTEXATTRIB4NUSVPROC glad_glVertexAttrib4Nusv = NULL; +PFNGLVERTEXATTRIB4BVPROC glad_glVertexAttrib4bv = NULL; +PFNGLVERTEXATTRIB4DPROC glad_glVertexAttrib4d = NULL; +PFNGLVERTEXATTRIB4DVPROC glad_glVertexAttrib4dv = NULL; +PFNGLVERTEXATTRIB4FPROC glad_glVertexAttrib4f = NULL; +PFNGLVERTEXATTRIB4FVPROC glad_glVertexAttrib4fv = NULL; +PFNGLVERTEXATTRIB4IVPROC glad_glVertexAttrib4iv = NULL; +PFNGLVERTEXATTRIB4SPROC glad_glVertexAttrib4s = NULL; +PFNGLVERTEXATTRIB4SVPROC glad_glVertexAttrib4sv = NULL; +PFNGLVERTEXATTRIB4UBVPROC glad_glVertexAttrib4ubv = NULL; +PFNGLVERTEXATTRIB4UIVPROC glad_glVertexAttrib4uiv = NULL; +PFNGLVERTEXATTRIB4USVPROC glad_glVertexAttrib4usv = NULL; +PFNGLVERTEXATTRIBPOINTERPROC glad_glVertexAttribPointer = NULL; +PFNGLVERTEXPOINTERPROC glad_glVertexPointer = NULL; +PFNGLVIEWPORTPROC glad_glViewport = NULL; +PFNGLWINDOWPOS2DPROC glad_glWindowPos2d = NULL; +PFNGLWINDOWPOS2DVPROC glad_glWindowPos2dv = NULL; +PFNGLWINDOWPOS2FPROC glad_glWindowPos2f = NULL; +PFNGLWINDOWPOS2FVPROC glad_glWindowPos2fv = NULL; +PFNGLWINDOWPOS2IPROC glad_glWindowPos2i = NULL; +PFNGLWINDOWPOS2IVPROC glad_glWindowPos2iv = NULL; +PFNGLWINDOWPOS2SPROC glad_glWindowPos2s = NULL; +PFNGLWINDOWPOS2SVPROC glad_glWindowPos2sv = NULL; +PFNGLWINDOWPOS3DPROC glad_glWindowPos3d = NULL; +PFNGLWINDOWPOS3DVPROC glad_glWindowPos3dv = NULL; +PFNGLWINDOWPOS3FPROC glad_glWindowPos3f = NULL; +PFNGLWINDOWPOS3FVPROC glad_glWindowPos3fv = NULL; +PFNGLWINDOWPOS3IPROC glad_glWindowPos3i = NULL; +PFNGLWINDOWPOS3IVPROC glad_glWindowPos3iv = NULL; +PFNGLWINDOWPOS3SPROC glad_glWindowPos3s = NULL; +PFNGLWINDOWPOS3SVPROC glad_glWindowPos3sv = NULL; + + +static void glad_gl_load_GL_VERSION_1_0( GLADuserptrloadfunc load, void* userptr) { + if(!GLAD_GL_VERSION_1_0) return; + glad_glAccum = (PFNGLACCUMPROC) load(userptr, "glAccum"); + glad_glAlphaFunc = (PFNGLALPHAFUNCPROC) load(userptr, "glAlphaFunc"); + glad_glBegin = (PFNGLBEGINPROC) load(userptr, "glBegin"); + glad_glBitmap = (PFNGLBITMAPPROC) load(userptr, "glBitmap"); + glad_glBlendFunc = (PFNGLBLENDFUNCPROC) load(userptr, "glBlendFunc"); + glad_glCallList = (PFNGLCALLLISTPROC) load(userptr, "glCallList"); + glad_glCallLists = (PFNGLCALLLISTSPROC) load(userptr, "glCallLists"); + glad_glClear = (PFNGLCLEARPROC) load(userptr, "glClear"); + glad_glClearAccum = (PFNGLCLEARACCUMPROC) load(userptr, "glClearAccum"); + glad_glClearColor = (PFNGLCLEARCOLORPROC) load(userptr, "glClearColor"); + glad_glClearDepth = (PFNGLCLEARDEPTHPROC) load(userptr, "glClearDepth"); + glad_glClearIndex = (PFNGLCLEARINDEXPROC) load(userptr, "glClearIndex"); + glad_glClearStencil = (PFNGLCLEARSTENCILPROC) load(userptr, "glClearStencil"); + glad_glClipPlane = (PFNGLCLIPPLANEPROC) load(userptr, "glClipPlane"); + glad_glColor3b = (PFNGLCOLOR3BPROC) load(userptr, "glColor3b"); + glad_glColor3bv = (PFNGLCOLOR3BVPROC) load(userptr, "glColor3bv"); + glad_glColor3d = (PFNGLCOLOR3DPROC) load(userptr, "glColor3d"); + glad_glColor3dv = (PFNGLCOLOR3DVPROC) load(userptr, "glColor3dv"); + glad_glColor3f = (PFNGLCOLOR3FPROC) load(userptr, "glColor3f"); + glad_glColor3fv = (PFNGLCOLOR3FVPROC) load(userptr, "glColor3fv"); + glad_glColor3i = (PFNGLCOLOR3IPROC) load(userptr, "glColor3i"); + glad_glColor3iv = (PFNGLCOLOR3IVPROC) load(userptr, "glColor3iv"); + glad_glColor3s = (PFNGLCOLOR3SPROC) load(userptr, "glColor3s"); + glad_glColor3sv = (PFNGLCOLOR3SVPROC) load(userptr, "glColor3sv"); + glad_glColor3ub = (PFNGLCOLOR3UBPROC) load(userptr, "glColor3ub"); + glad_glColor3ubv = (PFNGLCOLOR3UBVPROC) load(userptr, "glColor3ubv"); + glad_glColor3ui = (PFNGLCOLOR3UIPROC) load(userptr, "glColor3ui"); + glad_glColor3uiv = (PFNGLCOLOR3UIVPROC) load(userptr, "glColor3uiv"); + glad_glColor3us = (PFNGLCOLOR3USPROC) load(userptr, "glColor3us"); + glad_glColor3usv = (PFNGLCOLOR3USVPROC) load(userptr, "glColor3usv"); + glad_glColor4b = (PFNGLCOLOR4BPROC) load(userptr, "glColor4b"); + glad_glColor4bv = (PFNGLCOLOR4BVPROC) load(userptr, "glColor4bv"); + glad_glColor4d = (PFNGLCOLOR4DPROC) load(userptr, "glColor4d"); + glad_glColor4dv = (PFNGLCOLOR4DVPROC) load(userptr, "glColor4dv"); + glad_glColor4f = (PFNGLCOLOR4FPROC) load(userptr, "glColor4f"); + glad_glColor4fv = (PFNGLCOLOR4FVPROC) load(userptr, "glColor4fv"); + glad_glColor4i = (PFNGLCOLOR4IPROC) load(userptr, "glColor4i"); + glad_glColor4iv = (PFNGLCOLOR4IVPROC) load(userptr, "glColor4iv"); + glad_glColor4s = (PFNGLCOLOR4SPROC) load(userptr, "glColor4s"); + glad_glColor4sv = (PFNGLCOLOR4SVPROC) load(userptr, "glColor4sv"); + glad_glColor4ub = (PFNGLCOLOR4UBPROC) load(userptr, "glColor4ub"); + glad_glColor4ubv = (PFNGLCOLOR4UBVPROC) load(userptr, "glColor4ubv"); + glad_glColor4ui = (PFNGLCOLOR4UIPROC) load(userptr, "glColor4ui"); + glad_glColor4uiv = (PFNGLCOLOR4UIVPROC) load(userptr, "glColor4uiv"); + glad_glColor4us = (PFNGLCOLOR4USPROC) load(userptr, "glColor4us"); + glad_glColor4usv = (PFNGLCOLOR4USVPROC) load(userptr, "glColor4usv"); + glad_glColorMask = (PFNGLCOLORMASKPROC) load(userptr, "glColorMask"); + glad_glColorMaterial = (PFNGLCOLORMATERIALPROC) load(userptr, "glColorMaterial"); + glad_glCopyPixels = (PFNGLCOPYPIXELSPROC) load(userptr, "glCopyPixels"); + glad_glCullFace = (PFNGLCULLFACEPROC) load(userptr, "glCullFace"); + glad_glDeleteLists = (PFNGLDELETELISTSPROC) load(userptr, "glDeleteLists"); + glad_glDepthFunc = (PFNGLDEPTHFUNCPROC) load(userptr, "glDepthFunc"); + glad_glDepthMask = (PFNGLDEPTHMASKPROC) load(userptr, "glDepthMask"); + glad_glDepthRange = (PFNGLDEPTHRANGEPROC) load(userptr, "glDepthRange"); + glad_glDisable = (PFNGLDISABLEPROC) load(userptr, "glDisable"); + glad_glDrawBuffer = (PFNGLDRAWBUFFERPROC) load(userptr, "glDrawBuffer"); + glad_glDrawPixels = (PFNGLDRAWPIXELSPROC) load(userptr, "glDrawPixels"); + glad_glEdgeFlag = (PFNGLEDGEFLAGPROC) load(userptr, "glEdgeFlag"); + glad_glEdgeFlagv = (PFNGLEDGEFLAGVPROC) load(userptr, "glEdgeFlagv"); + glad_glEnable = (PFNGLENABLEPROC) load(userptr, "glEnable"); + glad_glEnd = (PFNGLENDPROC) load(userptr, "glEnd"); + glad_glEndList = (PFNGLENDLISTPROC) load(userptr, "glEndList"); + glad_glEvalCoord1d = (PFNGLEVALCOORD1DPROC) load(userptr, "glEvalCoord1d"); + glad_glEvalCoord1dv = (PFNGLEVALCOORD1DVPROC) load(userptr, "glEvalCoord1dv"); + glad_glEvalCoord1f = (PFNGLEVALCOORD1FPROC) load(userptr, "glEvalCoord1f"); + glad_glEvalCoord1fv = (PFNGLEVALCOORD1FVPROC) load(userptr, "glEvalCoord1fv"); + glad_glEvalCoord2d = (PFNGLEVALCOORD2DPROC) load(userptr, "glEvalCoord2d"); + glad_glEvalCoord2dv = (PFNGLEVALCOORD2DVPROC) load(userptr, "glEvalCoord2dv"); + glad_glEvalCoord2f = (PFNGLEVALCOORD2FPROC) load(userptr, "glEvalCoord2f"); + glad_glEvalCoord2fv = (PFNGLEVALCOORD2FVPROC) load(userptr, "glEvalCoord2fv"); + glad_glEvalMesh1 = (PFNGLEVALMESH1PROC) load(userptr, "glEvalMesh1"); + glad_glEvalMesh2 = (PFNGLEVALMESH2PROC) load(userptr, "glEvalMesh2"); + glad_glEvalPoint1 = (PFNGLEVALPOINT1PROC) load(userptr, "glEvalPoint1"); + glad_glEvalPoint2 = (PFNGLEVALPOINT2PROC) load(userptr, "glEvalPoint2"); + glad_glFeedbackBuffer = (PFNGLFEEDBACKBUFFERPROC) load(userptr, "glFeedbackBuffer"); + glad_glFinish = (PFNGLFINISHPROC) load(userptr, "glFinish"); + glad_glFlush = (PFNGLFLUSHPROC) load(userptr, "glFlush"); + glad_glFogf = (PFNGLFOGFPROC) load(userptr, "glFogf"); + glad_glFogfv = (PFNGLFOGFVPROC) load(userptr, "glFogfv"); + glad_glFogi = (PFNGLFOGIPROC) load(userptr, "glFogi"); + glad_glFogiv = (PFNGLFOGIVPROC) load(userptr, "glFogiv"); + glad_glFrontFace = (PFNGLFRONTFACEPROC) load(userptr, "glFrontFace"); + glad_glFrustum = (PFNGLFRUSTUMPROC) load(userptr, "glFrustum"); + glad_glGenLists = (PFNGLGENLISTSPROC) load(userptr, "glGenLists"); + glad_glGetBooleanv = (PFNGLGETBOOLEANVPROC) load(userptr, "glGetBooleanv"); + glad_glGetClipPlane = (PFNGLGETCLIPPLANEPROC) load(userptr, "glGetClipPlane"); + glad_glGetDoublev = (PFNGLGETDOUBLEVPROC) load(userptr, "glGetDoublev"); + glad_glGetError = (PFNGLGETERRORPROC) load(userptr, "glGetError"); + glad_glGetFloatv = (PFNGLGETFLOATVPROC) load(userptr, "glGetFloatv"); + glad_glGetIntegerv = (PFNGLGETINTEGERVPROC) load(userptr, "glGetIntegerv"); + glad_glGetLightfv = (PFNGLGETLIGHTFVPROC) load(userptr, "glGetLightfv"); + glad_glGetLightiv = (PFNGLGETLIGHTIVPROC) load(userptr, "glGetLightiv"); + glad_glGetMapdv = (PFNGLGETMAPDVPROC) load(userptr, "glGetMapdv"); + glad_glGetMapfv = (PFNGLGETMAPFVPROC) load(userptr, "glGetMapfv"); + glad_glGetMapiv = (PFNGLGETMAPIVPROC) load(userptr, "glGetMapiv"); + glad_glGetMaterialfv = (PFNGLGETMATERIALFVPROC) load(userptr, "glGetMaterialfv"); + glad_glGetMaterialiv = (PFNGLGETMATERIALIVPROC) load(userptr, "glGetMaterialiv"); + glad_glGetPixelMapfv = (PFNGLGETPIXELMAPFVPROC) load(userptr, "glGetPixelMapfv"); + glad_glGetPixelMapuiv = (PFNGLGETPIXELMAPUIVPROC) load(userptr, "glGetPixelMapuiv"); + glad_glGetPixelMapusv = (PFNGLGETPIXELMAPUSVPROC) load(userptr, "glGetPixelMapusv"); + glad_glGetPolygonStipple = (PFNGLGETPOLYGONSTIPPLEPROC) load(userptr, "glGetPolygonStipple"); + glad_glGetString = (PFNGLGETSTRINGPROC) load(userptr, "glGetString"); + glad_glGetTexEnvfv = (PFNGLGETTEXENVFVPROC) load(userptr, "glGetTexEnvfv"); + glad_glGetTexEnviv = (PFNGLGETTEXENVIVPROC) load(userptr, "glGetTexEnviv"); + glad_glGetTexGendv = 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load(userptr, "glVertexAttrib3fv"); + glad_glVertexAttrib3s = (PFNGLVERTEXATTRIB3SPROC) load(userptr, "glVertexAttrib3s"); + glad_glVertexAttrib3sv = (PFNGLVERTEXATTRIB3SVPROC) load(userptr, "glVertexAttrib3sv"); + glad_glVertexAttrib4Nbv = (PFNGLVERTEXATTRIB4NBVPROC) load(userptr, "glVertexAttrib4Nbv"); + glad_glVertexAttrib4Niv = (PFNGLVERTEXATTRIB4NIVPROC) load(userptr, "glVertexAttrib4Niv"); + glad_glVertexAttrib4Nsv = (PFNGLVERTEXATTRIB4NSVPROC) load(userptr, "glVertexAttrib4Nsv"); + glad_glVertexAttrib4Nub = (PFNGLVERTEXATTRIB4NUBPROC) load(userptr, "glVertexAttrib4Nub"); + glad_glVertexAttrib4Nubv = (PFNGLVERTEXATTRIB4NUBVPROC) load(userptr, "glVertexAttrib4Nubv"); + glad_glVertexAttrib4Nuiv = (PFNGLVERTEXATTRIB4NUIVPROC) load(userptr, "glVertexAttrib4Nuiv"); + glad_glVertexAttrib4Nusv = (PFNGLVERTEXATTRIB4NUSVPROC) load(userptr, "glVertexAttrib4Nusv"); + glad_glVertexAttrib4bv = (PFNGLVERTEXATTRIB4BVPROC) load(userptr, "glVertexAttrib4bv"); + glad_glVertexAttrib4d = (PFNGLVERTEXATTRIB4DPROC) load(userptr, "glVertexAttrib4d"); + glad_glVertexAttrib4dv = (PFNGLVERTEXATTRIB4DVPROC) load(userptr, "glVertexAttrib4dv"); + glad_glVertexAttrib4f = (PFNGLVERTEXATTRIB4FPROC) load(userptr, "glVertexAttrib4f"); + glad_glVertexAttrib4fv = (PFNGLVERTEXATTRIB4FVPROC) load(userptr, "glVertexAttrib4fv"); + glad_glVertexAttrib4iv = (PFNGLVERTEXATTRIB4IVPROC) load(userptr, "glVertexAttrib4iv"); + glad_glVertexAttrib4s = (PFNGLVERTEXATTRIB4SPROC) load(userptr, "glVertexAttrib4s"); + glad_glVertexAttrib4sv = (PFNGLVERTEXATTRIB4SVPROC) load(userptr, "glVertexAttrib4sv"); + glad_glVertexAttrib4ubv = (PFNGLVERTEXATTRIB4UBVPROC) load(userptr, "glVertexAttrib4ubv"); + glad_glVertexAttrib4uiv = (PFNGLVERTEXATTRIB4UIVPROC) load(userptr, "glVertexAttrib4uiv"); + glad_glVertexAttrib4usv = (PFNGLVERTEXATTRIB4USVPROC) load(userptr, "glVertexAttrib4usv"); + glad_glVertexAttribPointer = (PFNGLVERTEXATTRIBPOINTERPROC) load(userptr, "glVertexAttribPointer"); +} +static void glad_gl_load_GL_VERSION_2_1( GLADuserptrloadfunc load, void* userptr) { + if(!GLAD_GL_VERSION_2_1) return; + glad_glUniformMatrix2x3fv = (PFNGLUNIFORMMATRIX2X3FVPROC) load(userptr, "glUniformMatrix2x3fv"); + glad_glUniformMatrix2x4fv = (PFNGLUNIFORMMATRIX2X4FVPROC) load(userptr, "glUniformMatrix2x4fv"); + glad_glUniformMatrix3x2fv = (PFNGLUNIFORMMATRIX3X2FVPROC) load(userptr, "glUniformMatrix3x2fv"); + glad_glUniformMatrix3x4fv = (PFNGLUNIFORMMATRIX3X4FVPROC) load(userptr, "glUniformMatrix3x4fv"); + glad_glUniformMatrix4x2fv = (PFNGLUNIFORMMATRIX4X2FVPROC) load(userptr, "glUniformMatrix4x2fv"); + glad_glUniformMatrix4x3fv = (PFNGLUNIFORMMATRIX4X3FVPROC) load(userptr, "glUniformMatrix4x3fv"); +} + + + +#if defined(GL_ES_VERSION_3_0) || defined(GL_VERSION_3_0) +#define GLAD_GL_IS_SOME_NEW_VERSION 1 +#else +#define GLAD_GL_IS_SOME_NEW_VERSION 0 +#endif + +static int glad_gl_get_extensions( int version, const char **out_exts, unsigned int *out_num_exts_i, char ***out_exts_i) { +#if GLAD_GL_IS_SOME_NEW_VERSION + if(GLAD_VERSION_MAJOR(version) < 3) { +#else + (void) version; + (void) out_num_exts_i; + (void) out_exts_i; +#endif + if (glad_glGetString == NULL) { + return 0; + } + *out_exts = (const char *)glad_glGetString(GL_EXTENSIONS); +#if GLAD_GL_IS_SOME_NEW_VERSION + } else { + unsigned int index = 0; + unsigned int num_exts_i = 0; + char **exts_i = NULL; + if (glad_glGetStringi == NULL || glad_glGetIntegerv == NULL) { + return 0; + } + glad_glGetIntegerv(GL_NUM_EXTENSIONS, (int*) &num_exts_i); + if (num_exts_i > 0) { + exts_i = (char **) malloc(num_exts_i * (sizeof *exts_i)); + } + if (exts_i == NULL) { + return 0; + } + for(index = 0; index < num_exts_i; index++) { + const char *gl_str_tmp = (const char*) glad_glGetStringi(GL_EXTENSIONS, index); + size_t len = strlen(gl_str_tmp) + 1; + + char *local_str = (char*) malloc(len * sizeof(char)); + if(local_str != NULL) { + memcpy(local_str, gl_str_tmp, len * sizeof(char)); + } + + exts_i[index] = local_str; + } + + *out_num_exts_i = num_exts_i; + *out_exts_i = exts_i; + } +#endif + return 1; +} +static void glad_gl_free_extensions(char **exts_i, unsigned int num_exts_i) { + if (exts_i != NULL) { + unsigned int index; + for(index = 0; index < num_exts_i; index++) { + free((void *) (exts_i[index])); + } + free((void *)exts_i); + exts_i = NULL; + } +} +static int glad_gl_has_extension(int version, const char *exts, unsigned int num_exts_i, char **exts_i, const char *ext) { + if(GLAD_VERSION_MAJOR(version) < 3 || !GLAD_GL_IS_SOME_NEW_VERSION) { + const char *extensions; + const char *loc; + const char *terminator; + extensions = exts; + if(extensions == NULL || ext == NULL) { + return 0; + } + while(1) { + loc = strstr(extensions, ext); + if(loc == NULL) { + return 0; + } + terminator = loc + strlen(ext); + if((loc == extensions || *(loc - 1) == ' ') && + (*terminator == ' ' || *terminator == '\0')) { + return 1; + } + extensions = terminator; + } + } else { + unsigned int index; + for(index = 0; index < num_exts_i; index++) { + const char *e = exts_i[index]; + if(strcmp(e, ext) == 0) { + return 1; + } + } + } + return 0; +} + +static GLADapiproc glad_gl_get_proc_from_userptr(void *userptr, const char* name) { + return (GLAD_GNUC_EXTENSION (GLADapiproc (*)(const char *name)) userptr)(name); +} + +static int glad_gl_find_extensions_gl( int version) { + const char *exts = NULL; + unsigned int num_exts_i = 0; + char **exts_i = NULL; + if (!glad_gl_get_extensions(version, &exts, &num_exts_i, &exts_i)) return 0; + + (void) glad_gl_has_extension; + + glad_gl_free_extensions(exts_i, num_exts_i); + + return 1; +} + +static int glad_gl_find_core_gl(void) { + int i, major, minor; + const char* version; + const char* prefixes[] = { + "OpenGL ES-CM ", + "OpenGL ES-CL ", + "OpenGL ES ", + NULL + }; + version = (const char*) glad_glGetString(GL_VERSION); + if (!version) return 0; + for (i = 0; prefixes[i]; i++) { + const size_t length = strlen(prefixes[i]); + if (strncmp(version, prefixes[i], length) == 0) { + version += length; + break; + } + } + + GLAD_IMPL_UTIL_SSCANF(version, "%d.%d", &major, &minor); + + GLAD_GL_VERSION_1_0 = (major == 1 && minor >= 0) || major > 1; + GLAD_GL_VERSION_1_1 = (major == 1 && minor >= 1) || major > 1; + GLAD_GL_VERSION_1_2 = (major == 1 && minor >= 2) || major > 1; + GLAD_GL_VERSION_1_3 = (major == 1 && minor >= 3) || major > 1; + GLAD_GL_VERSION_1_4 = (major == 1 && minor >= 4) || major > 1; + GLAD_GL_VERSION_1_5 = (major == 1 && minor >= 5) || major > 1; + GLAD_GL_VERSION_2_0 = (major == 2 && minor >= 0) || major > 2; + GLAD_GL_VERSION_2_1 = (major == 2 && minor >= 1) || major > 2; + + return GLAD_MAKE_VERSION(major, minor); +} + +int gladLoadGLUserPtr( GLADuserptrloadfunc load, void *userptr) { + int version; + + glad_glGetString = (PFNGLGETSTRINGPROC) load(userptr, "glGetString"); + if(glad_glGetString == NULL) return 0; + if(glad_glGetString(GL_VERSION) == NULL) return 0; + version = glad_gl_find_core_gl(); + + glad_gl_load_GL_VERSION_1_0(load, userptr); + glad_gl_load_GL_VERSION_1_1(load, userptr); + glad_gl_load_GL_VERSION_1_2(load, userptr); + glad_gl_load_GL_VERSION_1_3(load, userptr); + glad_gl_load_GL_VERSION_1_4(load, userptr); + glad_gl_load_GL_VERSION_1_5(load, userptr); + glad_gl_load_GL_VERSION_2_0(load, userptr); + glad_gl_load_GL_VERSION_2_1(load, userptr); + + if (!glad_gl_find_extensions_gl(version)) return 0; + + + + return version; +} + + +int gladLoadGL( GLADloadfunc load) { + return gladLoadGLUserPtr( glad_gl_get_proc_from_userptr, GLAD_GNUC_EXTENSION (void*) load); +} + + + + + + +#ifdef __cplusplus +} +#endif diff --git a/main.cpp b/main.cpp new file mode 100644 index 0000000..d72589d --- /dev/null +++ b/main.cpp @@ -0,0 +1,783 @@ +#include +#include +#include +#include +#include + +#include +#include +#include + +#define STBI_ONLY_PNG +#include + +constexpr const char *NAME = "Progressia Texture Previewer"; +constexpr const char *VERSION = "1.0"; + +void load_textures(int argc, char **argv); +void create_window(); +void load_opengl(); +void display_window(); +void main_loop(); + +std::string programName; + +int main(int argc, char **argv) { + + programName = argv[0]; + + load_textures(argc, argv); + create_window(); + load_opengl(); + display_window(); + main_loop(); + + return 0; + +} + +class Texture { +private: + + std::string name; + int width, height; + + GLvoid *data; + GLuint gl_id; + +public: + + Texture(const std::string &name) : + name(name), + data(NULL), + gl_id(-1) + {} + + Texture(const Texture&) = delete; + Texture& operator=(const Texture&) = delete; + + void load_opengl(); + void unload_opengl(); + + bool hasData() const { + return data != NULL; + } + + bool hasID() const { + return gl_id != -1; + } + + GLuint getId() const { + return gl_id; + } + + + void load_stb() { + int channels; + data = stbi_load(name.c_str(), &width, &height, &channels, STBI_rgb_alpha); + + if (!hasData()) { + std::cerr << programName << ": Could not load image due to format or IO error: " << name << std::endl; + return; + } + + std::cout << "Loaded image " << name << std::endl; + } + + void unload_stb() { + if (hasData()) { + std::cout << "Freeing STB data for " << name << std::endl; + stbi_image_free(data); + data = NULL; + } + } + + ~Texture() { + unload_stb(); + unload_opengl(); + } +}; + + + +std::vector> LOADED_TEXTURES; +bool loadTexturesIntoOpenGLWhenLoaded = false; + +void load_texture(const std::string &path) { + Texture *texture = new Texture(path); + texture->load_stb(); + if (!texture->hasData()) { + delete texture; + return; + } + + LOADED_TEXTURES.emplace_back(texture); + + if (loadTexturesIntoOpenGLWhenLoaded) { + texture->load_opengl(); + } +} + +void unload_textures(); + +void load_textures(int argc, char **argv) { + + std::vector textures; + + for (size_t i = 0; i < argc - 1; ++i) { + textures.emplace_back(argv[i + 1]); + + if (textures.at(i) == "--help") { + std::cout << NAME << " version " << VERSION << std::endl; + std::cout << + "Usage: " << programName << " [PATH... | --help | --version]\n" + " PATH adds a texture specified by PATH to the list of displayed textures\n" + " --help displays this message and exits\n" + " --version displays version information and exits" + << std::endl; + std::exit(EXIT_SUCCESS); + } + + if (textures.at(i) == "--version") { + std::cout << NAME << " version " << VERSION << std::endl; + std::exit(EXIT_SUCCESS); + } + } + + std::for_each(textures.begin(), textures.end(), &load_texture); + std::cout << "Loaded " << LOADED_TEXTURES.size() << " images" << std::endl; + +} + +void unload_textures() { + LOADED_TEXTURES.clear(); +} + + + +GLFWwindow *window; + +enum MODE { + BLOCK, PLANE +} currentMode = BLOCK; +int selection = 0; +bool light_theme = true; + +int width, height; + +void on_glfw_error(int errorCode, const char *description); +void glfw_shutdown_hook(); + +void on_key(GLFWwindow* window, int key, int scancode, int action, int mods); +void on_drop(GLFWwindow* window, int count, const char** paths); + +void create_window() { + glfwSetErrorCallback(&on_glfw_error); + + if (!glfwInit()) { + std::cerr << programName << ": could not initialize GLFW" << std::endl; + std::exit(EXIT_FAILURE); + } + + std::atexit(&glfw_shutdown_hook); + std::cout << "GLFW initialized" << std::endl; + + glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE); + glfwWindowHint(GLFW_RESIZABLE, GLFW_TRUE); + glfwWindowHint(GLFW_FOCUSED, GLFW_TRUE); + glfwWindowHint(GLFW_MAXIMIZED, GLFW_FALSE); + + glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2); + glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 1); + + glfwWindowHint(GLFW_SAMPLES, 4); + + window = glfwCreateWindow(800, 600, NAME, NULL, NULL); + + glfwSetKeyCallback(window, &on_key); + glfwSetDropCallback(window, &on_drop); + + if (window == nullptr) { + std::cerr << programName << ": could not create window" << std::endl; + std::exit(EXIT_FAILURE); + } +} + +void on_glfw_error(int errorCode, const char *description) { + std::cerr << programName << ": GLFW has failed: (" << errorCode << ") " << description << std::endl; + std::exit(EXIT_FAILURE); +} + +void glfw_shutdown_hook() { + glfwTerminate(); + std::cout << "GLFW terminated" << std::endl; +} + +void switch_mode(); +void switch_theme(); +void change_texture(int direction); +void close_texture(); + +void on_key(GLFWwindow*, int key, int, int action, int mods) { + if (action != GLFW_PRESS) return; + + switch (key) { + case GLFW_KEY_SPACE: + if ((mods & GLFW_MOD_SHIFT) != 0) { + switch_theme(); + } else { + switch_mode(); + } + return; + case GLFW_KEY_LEFT: + change_texture(-1); + return; + case GLFW_KEY_RIGHT: + change_texture(+1); + return; + case GLFW_KEY_DELETE: + close_texture(); + return; + default: + // Do nothing + break; + } +} + +void on_drop(GLFWwindow*, int count, const char** paths) { + for (size_t i = 0; i < count; i++) { + load_texture(paths[i]); + } +} + + +void switch_mode() { + if (LOADED_TEXTURES.empty()) return; + + switch (currentMode) { + case BLOCK: + currentMode = PLANE; + break; + case PLANE: + currentMode = BLOCK; + break; + } + +} + +void switch_theme() { + light_theme = !light_theme; +} + +void change_texture(int direction) { + if (LOADED_TEXTURES.size() < 2) return; + selection += direction; +} + +void close_texture() { + if (LOADED_TEXTURES.empty()) return; + LOADED_TEXTURES.erase(LOADED_TEXTURES.begin() + selection); + selection -= 1; +} + + + + +GLuint program; +GLint attrib_coords; +GLint attrib_textureCoords; +GLint attrib_color; +GLint uniform_tranform; +GLint uniform_useTexture; + +void unload_opengl(); +void check_opengl(); +void load_shaders(); +void load_model(); + +void load_opengl() { + glfwMakeContextCurrent(window); + gladLoadGL(glfwGetProcAddress); + + glfwSwapInterval(1); + + std::atexit(&unload_opengl); + + load_shaders(); + + glEnable(GL_BLEND); + glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + + check_opengl(); + std::cout << "OpenGL initialized" << std::endl; +} + +enum VariableType { + ATTRIBUTE, UNIFORM +}; +GLint find_shader_variable(const char *name, VariableType); + +enum LogType { + SHADER, PROGRAM +}; +void log_shader_error(GLuint id, LogType); + +void load_shaders() { + GLint compile_ok = GL_FALSE, link_ok = GL_FALSE; + + GLuint vs = glCreateShader(GL_VERTEX_SHADER); + const char *vs_source = + R"(#version 120 + + attribute vec3 coords; + attribute vec2 textureCoords; + attribute vec3 color; + + uniform mat4 transform; + + varying vec2 textureCoords_var; + varying vec3 color_var; + + void main(void) { + gl_Position = transform * vec4(coords, 1.0); + color_var = color; + textureCoords_var = textureCoords; + })"; + glShaderSource(vs, 1, &vs_source, NULL); + glCompileShader(vs); + glGetShaderiv(vs, GL_COMPILE_STATUS, &compile_ok); + if (!compile_ok) { + log_shader_error(vs, SHADER); + std::cerr << programName << ": Error in vertex shader" << std::endl; + std::exit(EXIT_FAILURE); + } + + GLuint fs = glCreateShader(GL_FRAGMENT_SHADER); + const char *fs_source = + R"(#version 120 + + varying vec2 textureCoords_var; + varying vec3 color_var; + uniform bool useTexture; + + uniform sampler2D texture; + + void main(void) { + if (useTexture) { + gl_FragColor = vec4(color_var, 1.0) * texture2D(texture, textureCoords_var); + } else { + gl_FragColor = vec4(color_var, 1.0); + } + })"; + glShaderSource(fs, 1, &fs_source, NULL); + glCompileShader(fs); + glGetShaderiv(fs, GL_COMPILE_STATUS, &compile_ok); + if (!compile_ok) { + log_shader_error(fs, SHADER); + std::cerr << programName << ": Error in fragment shader" << std::endl; + std::exit(EXIT_FAILURE); + } + + program = glCreateProgram(); + glAttachShader(program, vs); + glAttachShader(program, fs); + glLinkProgram(program); + glGetProgramiv(program, GL_LINK_STATUS, &link_ok); + if (!link_ok) { + log_shader_error(program, SHADER); + std::cerr << programName << ": Could not link shaders" << std::endl; + std::exit(EXIT_FAILURE); + } + + attrib_coords = find_shader_variable("coords", ATTRIBUTE); + attrib_textureCoords = find_shader_variable("textureCoords", ATTRIBUTE); + attrib_color = find_shader_variable("color", ATTRIBUTE); + uniform_tranform = find_shader_variable("transform", UNIFORM); + uniform_useTexture = find_shader_variable("useTexture", UNIFORM); + + glUseProgram(program); + glActiveTexture(GL_TEXTURE0); + + glUniform1i(find_shader_variable("texture", UNIFORM), 0); + + for (auto &texture : LOADED_TEXTURES) { + texture->load_opengl(); + } + loadTexturesIntoOpenGLWhenLoaded = true; + + check_opengl(); +} + +GLint find_shader_variable(const char *name, VariableType type) { + GLint result = (type == ATTRIBUTE ? glGetAttribLocation : glGetUniformLocation)(program, name); + if (result < 0) { + std::cerr << programName << ": Could not find " << (type == ATTRIBUTE ? "attribute " : "uniform ") << name << std::endl; + std::exit(EXIT_FAILURE); + } + return result; +} + +void log_shader_error(GLuint id, LogType type) { + GLsizei logLength; + (type == SHADER ? glGetShaderiv : glGetProgramiv)(id, GL_INFO_LOG_LENGTH, &logLength); + GLchar *log = new GLchar[logLength]; + (type == SHADER ? glGetShaderInfoLog : glGetProgramInfoLog)(id, logLength, NULL, log); + std::cerr << programName << ": OpenGL:\n" << log << std::endl; + delete[] log; + std::exit(EXIT_FAILURE); +} + +void unload_opengl() { + if (glIsProgram(program)) glDeleteProgram(program); + std::cout << "OpenGL terminated" << std::endl; +} + +void check_opengl() { + GLenum error = glGetError(); + if (error != GL_NO_ERROR) { + std::cerr << programName << ": OpenGL error " << std::hex << error << std::endl; + std::exit(EXIT_FAILURE); + } +} + +void Texture::load_opengl() { + if (hasData() && !hasID()) { + + glGenTextures(1, &gl_id); + glBindTexture(GL_TEXTURE_2D, gl_id); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + glTexImage2D( + GL_TEXTURE_2D, + 0, + GL_RGBA, + width, + height, + 0, + GL_RGBA, + GL_UNSIGNED_BYTE, + data + ); + check_opengl(); + + std::cout << "Loaded into OpenGL " << name << std::endl; + + unload_stb(); + + } +} + +void Texture::unload_opengl() { + if (hasID()) { + glDeleteTextures(1, &gl_id); + gl_id = -1; + + std::cout << "Unloaded from OpenGL " << name << std::endl; + } +} + + + +void display_window() { + glfwShowWindow(window); +} + + + +void draw_background(); +void draw_object(); +void draw_block(); +void draw_plane(); + +void bind_coords(const GLfloat*); +void bind_color(const GLfloat*); +void bind_texture_coords(const GLfloat*); +void set_texture(const Texture&); +void set_use_texture(bool); +void set_transform(const glm::mat4&); + +void main_loop() { + + while (!glfwWindowShouldClose(window)) { + + glfwGetFramebufferSize(window, &width, &height); + glViewport(0, 0, width, height); + + glEnableVertexAttribArray(attrib_coords); + glEnableVertexAttribArray(attrib_color); + glEnableVertexAttribArray(attrib_textureCoords); + + draw_background(); + draw_object(); + + glDisableVertexAttribArray(attrib_textureCoords); + glDisableVertexAttribArray(attrib_color); + glDisableVertexAttribArray(attrib_coords); + + check_opengl(); + + glfwSwapBuffers(window); + glfwPollEvents(); + + } +} + +namespace background { + constexpr const GLfloat COORDS[] = { + -1.0, -1.0, 0.0, + -1.0, +1.0, 0.0, + +1.0, +1.0, 0.0, + +1.0, -1.0, 0.0, + }; + + constexpr const GLfloat COLORS_LIGHT[] = { + +0.80, +0.80, +0.85, + +0.95, +0.95, +1.00, + +0.95, +0.95, +1.00, + +0.80, +0.80, +0.85, + }; + + constexpr const GLfloat COLORS_DARK[] = { + +0.1, +0.1, +0.15, + +0.2, +0.2, +0.25, + +0.2, +0.2, +0.25, + +0.1, +0.1, +0.15, + }; +} + +namespace block { + constexpr const GLfloat COORDS[] = { + // front + -1.0, -1.0, 1.0, + 1.0, -1.0, 1.0, + 1.0, 1.0, 1.0, + -1.0, 1.0, 1.0, + // top + -1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, + 1.0, 1.0, -1.0, + -1.0, 1.0, -1.0, + // back + 1.0, -1.0, -1.0, + -1.0, -1.0, -1.0, + -1.0, 1.0, -1.0, + 1.0, 1.0, -1.0, + // bottom + -1.0, -1.0, -1.0, + 1.0, -1.0, -1.0, + 1.0, -1.0, 1.0, + -1.0, -1.0, 1.0, + // left + -1.0, -1.0, -1.0, + -1.0, -1.0, 1.0, + -1.0, 1.0, 1.0, + -1.0, 1.0, -1.0, + // right + 1.0, -1.0, 1.0, + 1.0, -1.0, -1.0, + 1.0, 1.0, -1.0, + 1.0, 1.0, 1.0, + }; + + constexpr const GLfloat COLORS[] = { + // front + 0.9, 0.9, 0.9, + 0.9, 0.9, 0.9, + 0.9, 0.9, 0.9, + 0.9, 0.9, 0.9, + // top + 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, + 1.0, 1.0, 1.0, + // back + 0.6, 0.6, 0.6, + 0.6, 0.6, 0.6, + 0.6, 0.6, 0.6, + 0.6, 0.6, 0.6, + // bottom + 0.4, 0.4, 0.4, + 0.4, 0.4, 0.4, + 0.4, 0.4, 0.4, + 0.4, 0.4, 0.4, + // left + 0.8, 0.8, 0.8, + 0.8, 0.8, 0.8, + 0.8, 0.8, 0.8, + 0.8, 0.8, 0.8, + // right + 0.7, 0.7, 0.7, + 0.7, 0.7, 0.7, + 0.7, 0.7, 0.7, + 0.7, 0.7, 0.7, + }; + + constexpr const GLfloat TEX_COORDS[] = { + // front + 0.0, 0.0, + 1.0, 0.0, + 1.0, 1.0, + 0.0, 1.0, + // top + 0.0, 0.0, + 1.0, 0.0, + 1.0, 1.0, + 0.0, 1.0, + // back + 0.0, 0.0, + 1.0, 0.0, + 1.0, 1.0, + 0.0, 1.0, + // bottom + 0.0, 0.0, + 1.0, 0.0, + 1.0, 1.0, + 0.0, 1.0, + // left + 0.0, 0.0, + 1.0, 0.0, + 1.0, 1.0, + 0.0, 1.0, + // right + 0.0, 0.0, + 1.0, 0.0, + 1.0, 1.0, + 0.0, 1.0, + }; +} + +namespace plane { + constexpr const GLfloat COORDS[] = { + -1.0, -1.0, 0.0, + -1.0, +1.0, 0.0, + +1.0, +1.0, 0.0, + +1.0, -1.0, 0.0, + }; + + constexpr const GLfloat COLORS[] = { + +1.0, +1.0, +1.0, + +1.0, +1.0, +1.0, + +1.0, +1.0, +1.0, + +1.0, +1.0, +1.0, + }; + + constexpr const GLfloat TEX_COORDS[] = { + -3.0, -3.0, + -3.0, +3.0, + +3.0, +3.0, + +3.0, -3.0, + }; +} + +void draw_background() { + bind_coords(background::COORDS); + bind_color(light_theme ? background::COLORS_LIGHT : background::COLORS_DARK); + set_transform(glm::identity()); + set_use_texture(false); + glDrawArrays(GL_QUADS, 0, 4); +} + +void draw_object() { + if (LOADED_TEXTURES.empty()) { + // Do nothing + return; + } + + if (selection < 0) selection = LOADED_TEXTURES.size() - 1; + if (selection >= LOADED_TEXTURES.size()) selection = 0; + + set_texture(*(LOADED_TEXTURES[selection])); + + switch (currentMode) { + case BLOCK: + draw_block(); + return; + case PLANE: + draw_plane(); + return; + } +} + +void draw_block() { + glEnable(GL_CULL_FACE); + glEnable(GL_DEPTH_TEST); + glClear(GL_DEPTH_BUFFER_BIT); + + bind_coords(block::COORDS); + bind_color(block::COLORS); + bind_texture_coords(block::TEX_COORDS); + + GLfloat aspectRatio = static_cast(width) / height; + + glm::mat4 transform = glm::identity(); + transform = glm::scale(transform, glm::vec3( + std::min(1.0f, 1.0f / aspectRatio), + std::min(1.0f, aspectRatio), + 1.0f + )); + + float t = static_cast(glfwGetTime()) / 20; + + transform = glm::rotate(transform, t * 3, glm::vec3(1, 0, 0)); + transform = glm::rotate(transform, t * 7, glm::vec3(0, 1, 0)); + transform = glm::rotate(transform, t * 11, glm::vec3(0, 0, 1)); + + transform = glm::scale(transform, glm::vec3(0.5)); + + set_transform(transform); + + set_use_texture(true); + glDrawArrays(GL_QUADS, 0, 4*6); + + glDisable(GL_DEPTH_TEST); + glDisable(GL_CULL_FACE); +} + +void draw_plane() { + bind_coords(plane::COORDS); + bind_color(plane::COLORS); + bind_texture_coords(plane::TEX_COORDS); + + GLfloat aspectRatio = static_cast(width) / height; + set_transform(glm::scale(glm::identity(), glm::vec3( + std::max(1.0f, 1.0f / aspectRatio), + std::max(1.0f, aspectRatio), + 1.0f + ))); + + set_use_texture(true); + glDrawArrays(GL_QUADS, 0, 4); +} + +void bind_coords(const GLfloat *data) { + glVertexAttribPointer( + attrib_coords, 3, GL_FLOAT, GL_FALSE, 0, + data + ); +} + +void bind_color(const GLfloat *data) { + glVertexAttribPointer( + attrib_color, 3, GL_FLOAT, GL_FALSE, 0, + data + ); +} + +void bind_texture_coords(const GLfloat *data) { + glVertexAttribPointer( + attrib_textureCoords, 2, GL_FLOAT, GL_FALSE, 0, + data + ); +} + +void set_texture(const Texture &texture) { + glBindTexture(GL_TEXTURE_2D, texture.getId()); +} + +void set_use_texture(bool use) { + glUniform1i(uniform_useTexture, use ? 1 : 0); +} + +void set_transform(const glm::mat4 &m) { + glUniformMatrix4fv(uniform_tranform, 1, false, glm::value_ptr(m)); +} diff --git a/stb/include/stb/stb_image.h b/stb/include/stb/stb_image.h new file mode 100644 index 0000000..accef48 --- /dev/null +++ b/stb/include/stb/stb_image.h @@ -0,0 +1,7762 @@ +/* stb_image - v2.26 - public domain image loader - http://nothings.org/stb + no warranty implied; use at your own risk + + Do this: + #define STB_IMAGE_IMPLEMENTATION + before you include this file in *one* C or C++ file to create the implementation. + + // i.e. it should look like this: + #include ... + #include ... + #include ... + #define STB_IMAGE_IMPLEMENTATION + #include "stb_image.h" + + You can #define STBI_ASSERT(x) before the #include to avoid using assert.h. + And #define STBI_MALLOC, STBI_REALLOC, and STBI_FREE to avoid using malloc,realloc,free + + + QUICK NOTES: + Primarily of interest to game developers and other people who can + avoid problematic images and only need the trivial interface + + JPEG baseline & progressive (12 bpc/arithmetic not supported, same as stock IJG lib) + PNG 1/2/4/8/16-bit-per-channel + + TGA (not sure what subset, if a subset) + BMP non-1bpp, non-RLE + PSD (composited view only, no extra channels, 8/16 bit-per-channel) + + GIF (*comp always reports as 4-channel) + HDR (radiance rgbE format) + PIC (Softimage PIC) + PNM (PPM and PGM binary only) + + Animated GIF still needs a proper API, but here's one way to do it: + http://gist.github.com/urraka/685d9a6340b26b830d49 + + - decode from memory or through FILE (define STBI_NO_STDIO to remove code) + - decode from arbitrary I/O callbacks + - SIMD acceleration on x86/x64 (SSE2) and ARM (NEON) + + Full documentation under "DOCUMENTATION" below. + + +LICENSE + + See end of file for license information. + +RECENT REVISION HISTORY: + + 2.26 (2020-07-13) many minor fixes + 2.25 (2020-02-02) fix warnings + 2.24 (2020-02-02) fix warnings; thread-local failure_reason and flip_vertically + 2.23 (2019-08-11) fix clang static analysis warning + 2.22 (2019-03-04) gif fixes, fix warnings + 2.21 (2019-02-25) fix typo in comment + 2.20 (2019-02-07) support utf8 filenames in Windows; fix warnings and platform ifdefs + 2.19 (2018-02-11) fix warning + 2.18 (2018-01-30) fix warnings + 2.17 (2018-01-29) bugfix, 1-bit BMP, 16-bitness query, fix warnings + 2.16 (2017-07-23) all functions have 16-bit variants; optimizations; bugfixes + 2.15 (2017-03-18) fix png-1,2,4; all Imagenet JPGs; no runtime SSE detection on GCC + 2.14 (2017-03-03) remove deprecated STBI_JPEG_OLD; fixes for Imagenet JPGs + 2.13 (2016-12-04) experimental 16-bit API, only for PNG so far; fixes + 2.12 (2016-04-02) fix typo in 2.11 PSD fix that caused crashes + 2.11 (2016-04-02) 16-bit PNGS; enable SSE2 in non-gcc x64 + RGB-format JPEG; remove white matting in PSD; + allocate large structures on the stack; + correct channel count for PNG & BMP + 2.10 (2016-01-22) avoid warning introduced in 2.09 + 2.09 (2016-01-16) 16-bit TGA; comments in PNM files; STBI_REALLOC_SIZED + + See end of file for full revision history. + + + ============================ Contributors ========================= + + Image formats Extensions, features + Sean Barrett (jpeg, png, bmp) Jetro Lauha (stbi_info) + Nicolas Schulz (hdr, psd) Martin "SpartanJ" Golini (stbi_info) + Jonathan Dummer (tga) James "moose2000" Brown (iPhone PNG) + Jean-Marc Lienher (gif) Ben "Disch" Wenger (io callbacks) + Tom Seddon (pic) Omar Cornut (1/2/4-bit PNG) + Thatcher Ulrich (psd) Nicolas Guillemot (vertical flip) + Ken Miller (pgm, ppm) Richard Mitton (16-bit PSD) + github:urraka (animated gif) Junggon Kim (PNM comments) + Christopher Forseth (animated gif) Daniel Gibson (16-bit TGA) + socks-the-fox (16-bit PNG) + Jeremy Sawicki (handle all ImageNet JPGs) + Optimizations & bugfixes Mikhail Morozov (1-bit BMP) + Fabian "ryg" Giesen Anael Seghezzi (is-16-bit query) + Arseny Kapoulkine + John-Mark Allen + Carmelo J Fdez-Aguera + + Bug & warning fixes + Marc LeBlanc David Woo Guillaume George Martins Mozeiko + Christpher Lloyd Jerry Jansson Joseph Thomson Blazej Dariusz Roszkowski + Phil Jordan Dave Moore Roy Eltham + Hayaki Saito Nathan Reed Won Chun + Luke Graham Johan Duparc Nick Verigakis the Horde3D community + Thomas Ruf Ronny Chevalier github:rlyeh + Janez Zemva John Bartholomew Michal Cichon github:romigrou + Jonathan Blow Ken Hamada Tero Hanninen github:svdijk + Laurent Gomila Cort Stratton github:snagar + Aruelien Pocheville Sergio Gonzalez Thibault Reuille github:Zelex + Cass Everitt Ryamond Barbiero github:grim210 + Paul Du Bois Engin Manap Aldo Culquicondor github:sammyhw + Philipp Wiesemann Dale Weiler Oriol Ferrer Mesia github:phprus + Josh Tobin Matthew Gregan github:poppolopoppo + Julian Raschke Gregory Mullen Christian Floisand github:darealshinji + Baldur Karlsson Kevin Schmidt JR Smith github:Michaelangel007 + Brad Weinberger Matvey Cherevko [reserved] + Luca Sas Alexander Veselov Zack Middleton [reserved] + Ryan C. Gordon [reserved] [reserved] + DO NOT ADD YOUR NAME HERE + + To add your name to the credits, pick a random blank space in the middle and fill it. + 80% of merge conflicts on stb PRs are due to people adding their name at the end + of the credits. +*/ + +#ifndef STBI_INCLUDE_STB_IMAGE_H +#define STBI_INCLUDE_STB_IMAGE_H + +// DOCUMENTATION +// +// Limitations: +// - no 12-bit-per-channel JPEG +// - no JPEGs with arithmetic coding +// - GIF always returns *comp=4 +// +// Basic usage (see HDR discussion below for HDR usage): +// int x,y,n; +// unsigned char *data = stbi_load(filename, &x, &y, &n, 0); +// // ... process data if not NULL ... +// // ... x = width, y = height, n = # 8-bit components per pixel ... +// // ... replace '0' with '1'..'4' to force that many components per pixel +// // ... but 'n' will always be the number that it would have been if you said 0 +// stbi_image_free(data) +// +// Standard parameters: +// int *x -- outputs image width in pixels +// int *y -- outputs image height in pixels +// int *channels_in_file -- outputs # of image components in image file +// int desired_channels -- if non-zero, # of image components requested in result +// +// The return value from an image loader is an 'unsigned char *' which points +// to the pixel data, or NULL on an allocation failure or if the image is +// corrupt or invalid. The pixel data consists of *y scanlines of *x pixels, +// with each pixel consisting of N interleaved 8-bit components; the first +// pixel pointed to is top-left-most in the image. There is no padding between +// image scanlines or between pixels, regardless of format. The number of +// components N is 'desired_channels' if desired_channels is non-zero, or +// *channels_in_file otherwise. If desired_channels is non-zero, +// *channels_in_file has the number of components that _would_ have been +// output otherwise. E.g. if you set desired_channels to 4, you will always +// get RGBA output, but you can check *channels_in_file to see if it's trivially +// opaque because e.g. there were only 3 channels in the source image. +// +// An output image with N components has the following components interleaved +// in this order in each pixel: +// +// N=#comp components +// 1 grey +// 2 grey, alpha +// 3 red, green, blue +// 4 red, green, blue, alpha +// +// If image loading fails for any reason, the return value will be NULL, +// and *x, *y, *channels_in_file will be unchanged. The function +// stbi_failure_reason() can be queried for an extremely brief, end-user +// unfriendly explanation of why the load failed. Define STBI_NO_FAILURE_STRINGS +// to avoid compiling these strings at all, and STBI_FAILURE_USERMSG to get slightly +// more user-friendly ones. +// +// Paletted PNG, BMP, GIF, and PIC images are automatically depalettized. +// +// =========================================================================== +// +// UNICODE: +// +// If compiling for Windows and you wish to use Unicode filenames, compile +// with +// #define STBI_WINDOWS_UTF8 +// and pass utf8-encoded filenames. Call stbi_convert_wchar_to_utf8 to convert +// Windows wchar_t filenames to utf8. +// +// =========================================================================== +// +// Philosophy +// +// stb libraries are designed with the following priorities: +// +// 1. easy to use +// 2. easy to maintain +// 3. good performance +// +// Sometimes I let "good performance" creep up in priority over "easy to maintain", +// and for best performance I may provide less-easy-to-use APIs that give higher +// performance, in addition to the easy-to-use ones. Nevertheless, it's important +// to keep in mind that from the standpoint of you, a client of this library, +// all you care about is #1 and #3, and stb libraries DO NOT emphasize #3 above all. +// +// Some secondary priorities arise directly from the first two, some of which +// provide more explicit reasons why performance can't be emphasized. +// +// - Portable ("ease of use") +// - Small source code footprint ("easy to maintain") +// - No dependencies ("ease of use") +// +// =========================================================================== +// +// I/O callbacks +// +// I/O callbacks allow you to read from arbitrary sources, like packaged +// files or some other source. Data read from callbacks are processed +// through a small internal buffer (currently 128 bytes) to try to reduce +// overhead. +// +// The three functions you must define are "read" (reads some bytes of data), +// "skip" (skips some bytes of data), "eof" (reports if the stream is at the end). +// +// =========================================================================== +// +// SIMD support +// +// The JPEG decoder will try to automatically use SIMD kernels on x86 when +// supported by the compiler. For ARM Neon support, you must explicitly +// request it. +// +// (The old do-it-yourself SIMD API is no longer supported in the current +// code.) +// +// On x86, SSE2 will automatically be used when available based on a run-time +// test; if not, the generic C versions are used as a fall-back. On ARM targets, +// the typical path is to have separate builds for NEON and non-NEON devices +// (at least this is true for iOS and Android). Therefore, the NEON support is +// toggled by a build flag: define STBI_NEON to get NEON loops. +// +// If for some reason you do not want to use any of SIMD code, or if +// you have issues compiling it, you can disable it entirely by +// defining STBI_NO_SIMD. +// +// =========================================================================== +// +// HDR image support (disable by defining STBI_NO_HDR) +// +// stb_image supports loading HDR images in general, and currently the Radiance +// .HDR file format specifically. You can still load any file through the existing +// interface; if you attempt to load an HDR file, it will be automatically remapped +// to LDR, assuming gamma 2.2 and an arbitrary scale factor defaulting to 1; +// both of these constants can be reconfigured through this interface: +// +// stbi_hdr_to_ldr_gamma(2.2f); +// stbi_hdr_to_ldr_scale(1.0f); +// +// (note, do not use _inverse_ constants; stbi_image will invert them +// appropriately). +// +// Additionally, there is a new, parallel interface for loading files as +// (linear) floats to preserve the full dynamic range: +// +// float *data = stbi_loadf(filename, &x, &y, &n, 0); +// +// If you load LDR images through this interface, those images will +// be promoted to floating point values, run through the inverse of +// constants corresponding to the above: +// +// stbi_ldr_to_hdr_scale(1.0f); +// stbi_ldr_to_hdr_gamma(2.2f); +// +// Finally, given a filename (or an open file or memory block--see header +// file for details) containing image data, you can query for the "most +// appropriate" interface to use (that is, whether the image is HDR or +// not), using: +// +// stbi_is_hdr(char *filename); +// +// =========================================================================== +// +// iPhone PNG support: +// +// By default we convert iphone-formatted PNGs back to RGB, even though +// they are internally encoded differently. You can disable this conversion +// by calling stbi_convert_iphone_png_to_rgb(0), in which case +// you will always just get the native iphone "format" through (which +// is BGR stored in RGB). +// +// Call stbi_set_unpremultiply_on_load(1) as well to force a divide per +// pixel to remove any premultiplied alpha *only* if the image file explicitly +// says there's premultiplied data (currently only happens in iPhone images, +// and only if iPhone convert-to-rgb processing is on). +// +// =========================================================================== +// +// ADDITIONAL CONFIGURATION +// +// - You can suppress implementation of any of the decoders to reduce +// your code footprint by #defining one or more of the following +// symbols before creating the implementation. +// +// STBI_NO_JPEG +// STBI_NO_PNG +// STBI_NO_BMP +// STBI_NO_PSD +// STBI_NO_TGA +// STBI_NO_GIF +// STBI_NO_HDR +// STBI_NO_PIC +// STBI_NO_PNM (.ppm and .pgm) +// +// - You can request *only* certain decoders and suppress all other ones +// (this will be more forward-compatible, as addition of new decoders +// doesn't require you to disable them explicitly): +// +// STBI_ONLY_JPEG +// STBI_ONLY_PNG +// STBI_ONLY_BMP +// STBI_ONLY_PSD +// STBI_ONLY_TGA +// STBI_ONLY_GIF +// STBI_ONLY_HDR +// STBI_ONLY_PIC +// STBI_ONLY_PNM (.ppm and .pgm) +// +// - If you use STBI_NO_PNG (or _ONLY_ without PNG), and you still +// want the zlib decoder to be available, #define STBI_SUPPORT_ZLIB +// +// - If you define STBI_MAX_DIMENSIONS, stb_image will reject images greater +// than that size (in either width or height) without further processing. +// This is to let programs in the wild set an upper bound to prevent +// denial-of-service attacks on untrusted data, as one could generate a +// valid image of gigantic dimensions and force stb_image to allocate a +// huge block of memory and spend disproportionate time decoding it. By +// default this is set to (1 << 24), which is 16777216, but that's still +// very big. + +#ifndef STBI_NO_STDIO +#include +#endif // STBI_NO_STDIO + +#define STBI_VERSION 1 + +enum +{ + STBI_default = 0, // only used for desired_channels + + STBI_grey = 1, + STBI_grey_alpha = 2, + STBI_rgb = 3, + STBI_rgb_alpha = 4 +}; + +#include +typedef unsigned char stbi_uc; +typedef unsigned short stbi_us; + +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef STBIDEF +#ifdef STB_IMAGE_STATIC +#define STBIDEF static +#else +#define STBIDEF extern +#endif +#endif + +////////////////////////////////////////////////////////////////////////////// +// +// PRIMARY API - works on images of any type +// + +// +// load image by filename, open file, or memory buffer +// + +typedef struct +{ + int (*read) (void *user,char *data,int size); // fill 'data' with 'size' bytes. return number of bytes actually read + void (*skip) (void *user,int n); // skip the next 'n' bytes, or 'unget' the last -n bytes if negative + int (*eof) (void *user); // returns nonzero if we are at end of file/data +} stbi_io_callbacks; + +//////////////////////////////////// +// +// 8-bits-per-channel interface +// + +STBIDEF stbi_uc *stbi_load_from_memory (stbi_uc const *buffer, int len , int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk , void *user, int *x, int *y, int *channels_in_file, int desired_channels); + +#ifndef STBI_NO_STDIO +STBIDEF stbi_uc *stbi_load (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_uc *stbi_load_from_file (FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); +// for stbi_load_from_file, file pointer is left pointing immediately after image +#endif + +#ifndef STBI_NO_GIF +STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp); +#endif + +#ifdef STBI_WINDOWS_UTF8 +STBIDEF int stbi_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input); +#endif + +//////////////////////////////////// +// +// 16-bits-per-channel interface +// + +STBIDEF stbi_us *stbi_load_16_from_memory (stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels); + +#ifndef STBI_NO_STDIO +STBIDEF stbi_us *stbi_load_16 (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); +STBIDEF stbi_us *stbi_load_from_file_16(FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); +#endif + +//////////////////////////////////// +// +// float-per-channel interface +// +#ifndef STBI_NO_LINEAR + STBIDEF float *stbi_loadf_from_memory (stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels); + STBIDEF float *stbi_loadf_from_callbacks (stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels); + + #ifndef STBI_NO_STDIO + STBIDEF float *stbi_loadf (char const *filename, int *x, int *y, int *channels_in_file, int desired_channels); + STBIDEF float *stbi_loadf_from_file (FILE *f, int *x, int *y, int *channels_in_file, int desired_channels); + #endif +#endif + +#ifndef STBI_NO_HDR + STBIDEF void stbi_hdr_to_ldr_gamma(float gamma); + STBIDEF void stbi_hdr_to_ldr_scale(float scale); +#endif // STBI_NO_HDR + +#ifndef STBI_NO_LINEAR + STBIDEF void stbi_ldr_to_hdr_gamma(float gamma); + STBIDEF void stbi_ldr_to_hdr_scale(float scale); +#endif // STBI_NO_LINEAR + +// stbi_is_hdr is always defined, but always returns false if STBI_NO_HDR +STBIDEF int stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user); +STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len); +#ifndef STBI_NO_STDIO +STBIDEF int stbi_is_hdr (char const *filename); +STBIDEF int stbi_is_hdr_from_file(FILE *f); +#endif // STBI_NO_STDIO + + +// get a VERY brief reason for failure +// on most compilers (and ALL modern mainstream compilers) this is threadsafe +STBIDEF const char *stbi_failure_reason (void); + +// free the loaded image -- this is just free() +STBIDEF void stbi_image_free (void *retval_from_stbi_load); + +// get image dimensions & components without fully decoding +STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp); +STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp); +STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len); +STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *clbk, void *user); + +#ifndef STBI_NO_STDIO +STBIDEF int stbi_info (char const *filename, int *x, int *y, int *comp); +STBIDEF int stbi_info_from_file (FILE *f, int *x, int *y, int *comp); +STBIDEF int stbi_is_16_bit (char const *filename); +STBIDEF int stbi_is_16_bit_from_file(FILE *f); +#endif + + + +// for image formats that explicitly notate that they have premultiplied alpha, +// we just return the colors as stored in the file. set this flag to force +// unpremultiplication. results are undefined if the unpremultiply overflow. +STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply); + +// indicate whether we should process iphone images back to canonical format, +// or just pass them through "as-is" +STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert); + +// flip the image vertically, so the first pixel in the output array is the bottom left +STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip); + +// as above, but only applies to images loaded on the thread that calls the function +// this function is only available if your compiler supports thread-local variables; +// calling it will fail to link if your compiler doesn't +STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip); + +// ZLIB client - used by PNG, available for other purposes + +STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen); +STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header); +STBIDEF char *stbi_zlib_decode_malloc(const char *buffer, int len, int *outlen); +STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, const char *ibuffer, int ilen); + +STBIDEF char *stbi_zlib_decode_noheader_malloc(const char *buffer, int len, int *outlen); +STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen); + + +#ifdef __cplusplus +} +#endif + +// +// +//// end header file ///////////////////////////////////////////////////// +#endif // STBI_INCLUDE_STB_IMAGE_H + +#ifdef STB_IMAGE_IMPLEMENTATION + +#if defined(STBI_ONLY_JPEG) || defined(STBI_ONLY_PNG) || defined(STBI_ONLY_BMP) \ + || defined(STBI_ONLY_TGA) || defined(STBI_ONLY_GIF) || defined(STBI_ONLY_PSD) \ + || defined(STBI_ONLY_HDR) || defined(STBI_ONLY_PIC) || defined(STBI_ONLY_PNM) \ + || defined(STBI_ONLY_ZLIB) + #ifndef STBI_ONLY_JPEG + #define STBI_NO_JPEG + #endif + #ifndef STBI_ONLY_PNG + #define STBI_NO_PNG + #endif + #ifndef STBI_ONLY_BMP + #define STBI_NO_BMP + #endif + #ifndef STBI_ONLY_PSD + #define STBI_NO_PSD + #endif + #ifndef STBI_ONLY_TGA + #define STBI_NO_TGA + #endif + #ifndef STBI_ONLY_GIF + #define STBI_NO_GIF + #endif + #ifndef STBI_ONLY_HDR + #define STBI_NO_HDR + #endif + #ifndef STBI_ONLY_PIC + #define STBI_NO_PIC + #endif + #ifndef STBI_ONLY_PNM + #define STBI_NO_PNM + #endif +#endif + +#if defined(STBI_NO_PNG) && !defined(STBI_SUPPORT_ZLIB) && !defined(STBI_NO_ZLIB) +#define STBI_NO_ZLIB +#endif + + +#include +#include // ptrdiff_t on osx +#include +#include +#include + +#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) +#include // ldexp, pow +#endif + +#ifndef STBI_NO_STDIO +#include +#endif + +#ifndef STBI_ASSERT +#include +#define STBI_ASSERT(x) assert(x) +#endif + +#ifdef __cplusplus +#define STBI_EXTERN extern "C" +#else +#define STBI_EXTERN extern +#endif + + +#ifndef _MSC_VER + #ifdef __cplusplus + #define stbi_inline inline + #else + #define stbi_inline + #endif +#else + #define stbi_inline __forceinline +#endif + +#ifndef STBI_NO_THREAD_LOCALS + #if defined(__cplusplus) && __cplusplus >= 201103L + #define STBI_THREAD_LOCAL thread_local + #elif defined(__GNUC__) && __GNUC__ < 5 + #define STBI_THREAD_LOCAL __thread + #elif defined(_MSC_VER) + #define STBI_THREAD_LOCAL __declspec(thread) + #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L && !defined(__STDC_NO_THREADS__) + #define STBI_THREAD_LOCAL _Thread_local + #endif + + #ifndef STBI_THREAD_LOCAL + #if defined(__GNUC__) + #define STBI_THREAD_LOCAL __thread + #endif + #endif +#endif + +#ifdef _MSC_VER +typedef unsigned short stbi__uint16; +typedef signed short stbi__int16; +typedef unsigned int stbi__uint32; +typedef signed int stbi__int32; +#else +#include +typedef uint16_t stbi__uint16; +typedef int16_t stbi__int16; +typedef uint32_t stbi__uint32; +typedef int32_t stbi__int32; +#endif + +// should produce compiler error if size is wrong +typedef unsigned char validate_uint32[sizeof(stbi__uint32)==4 ? 1 : -1]; + +#ifdef _MSC_VER +#define STBI_NOTUSED(v) (void)(v) +#else +#define STBI_NOTUSED(v) (void)sizeof(v) +#endif + +#ifdef _MSC_VER +#define STBI_HAS_LROTL +#endif + +#ifdef STBI_HAS_LROTL + #define stbi_lrot(x,y) _lrotl(x,y) +#else + #define stbi_lrot(x,y) (((x) << (y)) | ((x) >> (32 - (y)))) +#endif + +#if defined(STBI_MALLOC) && defined(STBI_FREE) && (defined(STBI_REALLOC) || defined(STBI_REALLOC_SIZED)) +// ok +#elif !defined(STBI_MALLOC) && !defined(STBI_FREE) && !defined(STBI_REALLOC) && !defined(STBI_REALLOC_SIZED) +// ok +#else +#error "Must define all or none of STBI_MALLOC, STBI_FREE, and STBI_REALLOC (or STBI_REALLOC_SIZED)." +#endif + +#ifndef STBI_MALLOC +#define STBI_MALLOC(sz) malloc(sz) +#define STBI_REALLOC(p,newsz) realloc(p,newsz) +#define STBI_FREE(p) free(p) +#endif + +#ifndef STBI_REALLOC_SIZED +#define STBI_REALLOC_SIZED(p,oldsz,newsz) STBI_REALLOC(p,newsz) +#endif + +// x86/x64 detection +#if defined(__x86_64__) || defined(_M_X64) +#define STBI__X64_TARGET +#elif defined(__i386) || defined(_M_IX86) +#define STBI__X86_TARGET +#endif + +#if defined(__GNUC__) && defined(STBI__X86_TARGET) && !defined(__SSE2__) && !defined(STBI_NO_SIMD) +// gcc doesn't support sse2 intrinsics unless you compile with -msse2, +// which in turn means it gets to use SSE2 everywhere. This is unfortunate, +// but previous attempts to provide the SSE2 functions with runtime +// detection caused numerous issues. The way architecture extensions are +// exposed in GCC/Clang is, sadly, not really suited for one-file libs. +// New behavior: if compiled with -msse2, we use SSE2 without any +// detection; if not, we don't use it at all. +#define STBI_NO_SIMD +#endif + +#if defined(__MINGW32__) && defined(STBI__X86_TARGET) && !defined(STBI_MINGW_ENABLE_SSE2) && !defined(STBI_NO_SIMD) +// Note that __MINGW32__ doesn't actually mean 32-bit, so we have to avoid STBI__X64_TARGET +// +// 32-bit MinGW wants ESP to be 16-byte aligned, but this is not in the +// Windows ABI and VC++ as well as Windows DLLs don't maintain that invariant. +// As a result, enabling SSE2 on 32-bit MinGW is dangerous when not +// simultaneously enabling "-mstackrealign". +// +// See https://github.com/nothings/stb/issues/81 for more information. +// +// So default to no SSE2 on 32-bit MinGW. If you've read this far and added +// -mstackrealign to your build settings, feel free to #define STBI_MINGW_ENABLE_SSE2. +#define STBI_NO_SIMD +#endif + +#if !defined(STBI_NO_SIMD) && (defined(STBI__X86_TARGET) || defined(STBI__X64_TARGET)) +#define STBI_SSE2 +#include + +#ifdef _MSC_VER + +#if _MSC_VER >= 1400 // not VC6 +#include // __cpuid +static int stbi__cpuid3(void) +{ + int info[4]; + __cpuid(info,1); + return info[3]; +} +#else +static int stbi__cpuid3(void) +{ + int res; + __asm { + mov eax,1 + cpuid + mov res,edx + } + return res; +} +#endif + +#define STBI_SIMD_ALIGN(type, name) __declspec(align(16)) type name + +#if !defined(STBI_NO_JPEG) && defined(STBI_SSE2) +static int stbi__sse2_available(void) +{ + int info3 = stbi__cpuid3(); + return ((info3 >> 26) & 1) != 0; +} +#endif + +#else // assume GCC-style if not VC++ +#define STBI_SIMD_ALIGN(type, name) type name __attribute__((aligned(16))) + +#if !defined(STBI_NO_JPEG) && defined(STBI_SSE2) +static int stbi__sse2_available(void) +{ + // If we're even attempting to compile this on GCC/Clang, that means + // -msse2 is on, which means the compiler is allowed to use SSE2 + // instructions at will, and so are we. + return 1; +} +#endif + +#endif +#endif + +// ARM NEON +#if defined(STBI_NO_SIMD) && defined(STBI_NEON) +#undef STBI_NEON +#endif + +#ifdef STBI_NEON +#include +// assume GCC or Clang on ARM targets +#define STBI_SIMD_ALIGN(type, name) type name __attribute__((aligned(16))) +#endif + +#ifndef STBI_SIMD_ALIGN +#define STBI_SIMD_ALIGN(type, name) type name +#endif + +#ifndef STBI_MAX_DIMENSIONS +#define STBI_MAX_DIMENSIONS (1 << 24) +#endif + +/////////////////////////////////////////////// +// +// stbi__context struct and start_xxx functions + +// stbi__context structure is our basic context used by all images, so it +// contains all the IO context, plus some basic image information +typedef struct +{ + stbi__uint32 img_x, img_y; + int img_n, img_out_n; + + stbi_io_callbacks io; + void *io_user_data; + + int read_from_callbacks; + int buflen; + stbi_uc buffer_start[128]; + int callback_already_read; + + stbi_uc *img_buffer, *img_buffer_end; + stbi_uc *img_buffer_original, *img_buffer_original_end; +} stbi__context; + + +static void stbi__refill_buffer(stbi__context *s); + +// initialize a memory-decode context +static void stbi__start_mem(stbi__context *s, stbi_uc const *buffer, int len) +{ + s->io.read = NULL; + s->read_from_callbacks = 0; + s->callback_already_read = 0; + s->img_buffer = s->img_buffer_original = (stbi_uc *) buffer; + s->img_buffer_end = s->img_buffer_original_end = (stbi_uc *) buffer+len; +} + +// initialize a callback-based context +static void stbi__start_callbacks(stbi__context *s, stbi_io_callbacks *c, void *user) +{ + s->io = *c; + s->io_user_data = user; + s->buflen = sizeof(s->buffer_start); + s->read_from_callbacks = 1; + s->callback_already_read = 0; + s->img_buffer = s->img_buffer_original = s->buffer_start; + stbi__refill_buffer(s); + s->img_buffer_original_end = s->img_buffer_end; +} + +#ifndef STBI_NO_STDIO + +static int stbi__stdio_read(void *user, char *data, int size) +{ + return (int) fread(data,1,size,(FILE*) user); +} + +static void stbi__stdio_skip(void *user, int n) +{ + int ch; + fseek((FILE*) user, n, SEEK_CUR); + ch = fgetc((FILE*) user); /* have to read a byte to reset feof()'s flag */ + if (ch != EOF) { + ungetc(ch, (FILE *) user); /* push byte back onto stream if valid. */ + } +} + +static int stbi__stdio_eof(void *user) +{ + return feof((FILE*) user) || ferror((FILE *) user); +} + +static stbi_io_callbacks stbi__stdio_callbacks = +{ + stbi__stdio_read, + stbi__stdio_skip, + stbi__stdio_eof, +}; + +static void stbi__start_file(stbi__context *s, FILE *f) +{ + stbi__start_callbacks(s, &stbi__stdio_callbacks, (void *) f); +} + +//static void stop_file(stbi__context *s) { } + +#endif // !STBI_NO_STDIO + +static void stbi__rewind(stbi__context *s) +{ + // conceptually rewind SHOULD rewind to the beginning of the stream, + // but we just rewind to the beginning of the initial buffer, because + // we only use it after doing 'test', which only ever looks at at most 92 bytes + s->img_buffer = s->img_buffer_original; + s->img_buffer_end = s->img_buffer_original_end; +} + +enum +{ + STBI_ORDER_RGB, + STBI_ORDER_BGR +}; + +typedef struct +{ + int bits_per_channel; + int num_channels; + int channel_order; +} stbi__result_info; + +#ifndef STBI_NO_JPEG +static int stbi__jpeg_test(stbi__context *s); +static void *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__jpeg_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_PNG +static int stbi__png_test(stbi__context *s); +static void *stbi__png_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__png_info(stbi__context *s, int *x, int *y, int *comp); +static int stbi__png_is16(stbi__context *s); +#endif + +#ifndef STBI_NO_BMP +static int stbi__bmp_test(stbi__context *s); +static void *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__bmp_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_TGA +static int stbi__tga_test(stbi__context *s); +static void *stbi__tga_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__tga_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_PSD +static int stbi__psd_test(stbi__context *s); +static void *stbi__psd_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc); +static int stbi__psd_info(stbi__context *s, int *x, int *y, int *comp); +static int stbi__psd_is16(stbi__context *s); +#endif + +#ifndef STBI_NO_HDR +static int stbi__hdr_test(stbi__context *s); +static float *stbi__hdr_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__hdr_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_PIC +static int stbi__pic_test(stbi__context *s); +static void *stbi__pic_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__pic_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_GIF +static int stbi__gif_test(stbi__context *s); +static void *stbi__gif_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static void *stbi__load_gif_main(stbi__context *s, int **delays, int *x, int *y, int *z, int *comp, int req_comp); +static int stbi__gif_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +#ifndef STBI_NO_PNM +static int stbi__pnm_test(stbi__context *s); +static void *stbi__pnm_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri); +static int stbi__pnm_info(stbi__context *s, int *x, int *y, int *comp); +#endif + +static +#ifdef STBI_THREAD_LOCAL +STBI_THREAD_LOCAL +#endif +const char *stbi__g_failure_reason; + +STBIDEF const char *stbi_failure_reason(void) +{ + return stbi__g_failure_reason; +} + +#ifndef STBI_NO_FAILURE_STRINGS +static int stbi__err(const char *str) +{ + stbi__g_failure_reason = str; + return 0; +} +#endif + +static void *stbi__malloc(size_t size) +{ + return STBI_MALLOC(size); +} + +// stb_image uses ints pervasively, including for offset calculations. +// therefore the largest decoded image size we can support with the +// current code, even on 64-bit targets, is INT_MAX. this is not a +// significant limitation for the intended use case. +// +// we do, however, need to make sure our size calculations don't +// overflow. hence a few helper functions for size calculations that +// multiply integers together, making sure that they're non-negative +// and no overflow occurs. + +// return 1 if the sum is valid, 0 on overflow. +// negative terms are considered invalid. +static int stbi__addsizes_valid(int a, int b) +{ + if (b < 0) return 0; + // now 0 <= b <= INT_MAX, hence also + // 0 <= INT_MAX - b <= INTMAX. + // And "a + b <= INT_MAX" (which might overflow) is the + // same as a <= INT_MAX - b (no overflow) + return a <= INT_MAX - b; +} + +// returns 1 if the product is valid, 0 on overflow. +// negative factors are considered invalid. +static int stbi__mul2sizes_valid(int a, int b) +{ + if (a < 0 || b < 0) return 0; + if (b == 0) return 1; // mul-by-0 is always safe + // portable way to check for no overflows in a*b + return a <= INT_MAX/b; +} + +#if !defined(STBI_NO_JPEG) || !defined(STBI_NO_PNG) || !defined(STBI_NO_TGA) || !defined(STBI_NO_HDR) +// returns 1 if "a*b + add" has no negative terms/factors and doesn't overflow +static int stbi__mad2sizes_valid(int a, int b, int add) +{ + return stbi__mul2sizes_valid(a, b) && stbi__addsizes_valid(a*b, add); +} +#endif + +// returns 1 if "a*b*c + add" has no negative terms/factors and doesn't overflow +static int stbi__mad3sizes_valid(int a, int b, int c, int add) +{ + return stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a*b, c) && + stbi__addsizes_valid(a*b*c, add); +} + +// returns 1 if "a*b*c*d + add" has no negative terms/factors and doesn't overflow +#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) +static int stbi__mad4sizes_valid(int a, int b, int c, int d, int add) +{ + return stbi__mul2sizes_valid(a, b) && stbi__mul2sizes_valid(a*b, c) && + stbi__mul2sizes_valid(a*b*c, d) && stbi__addsizes_valid(a*b*c*d, add); +} +#endif + +#if !defined(STBI_NO_JPEG) || !defined(STBI_NO_PNG) || !defined(STBI_NO_TGA) || !defined(STBI_NO_HDR) +// mallocs with size overflow checking +static void *stbi__malloc_mad2(int a, int b, int add) +{ + if (!stbi__mad2sizes_valid(a, b, add)) return NULL; + return stbi__malloc(a*b + add); +} +#endif + +static void *stbi__malloc_mad3(int a, int b, int c, int add) +{ + if (!stbi__mad3sizes_valid(a, b, c, add)) return NULL; + return stbi__malloc(a*b*c + add); +} + +#if !defined(STBI_NO_LINEAR) || !defined(STBI_NO_HDR) +static void *stbi__malloc_mad4(int a, int b, int c, int d, int add) +{ + if (!stbi__mad4sizes_valid(a, b, c, d, add)) return NULL; + return stbi__malloc(a*b*c*d + add); +} +#endif + +// stbi__err - error +// stbi__errpf - error returning pointer to float +// stbi__errpuc - error returning pointer to unsigned char + +#ifdef STBI_NO_FAILURE_STRINGS + #define stbi__err(x,y) 0 +#elif defined(STBI_FAILURE_USERMSG) + #define stbi__err(x,y) stbi__err(y) +#else + #define stbi__err(x,y) stbi__err(x) +#endif + +#define stbi__errpf(x,y) ((float *)(size_t) (stbi__err(x,y)?NULL:NULL)) +#define stbi__errpuc(x,y) ((unsigned char *)(size_t) (stbi__err(x,y)?NULL:NULL)) + +STBIDEF void stbi_image_free(void *retval_from_stbi_load) +{ + STBI_FREE(retval_from_stbi_load); +} + +#ifndef STBI_NO_LINEAR +static float *stbi__ldr_to_hdr(stbi_uc *data, int x, int y, int comp); +#endif + +#ifndef STBI_NO_HDR +static stbi_uc *stbi__hdr_to_ldr(float *data, int x, int y, int comp); +#endif + +static int stbi__vertically_flip_on_load_global = 0; + +STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip) +{ + stbi__vertically_flip_on_load_global = flag_true_if_should_flip; +} + +#ifndef STBI_THREAD_LOCAL +#define stbi__vertically_flip_on_load stbi__vertically_flip_on_load_global +#else +static STBI_THREAD_LOCAL int stbi__vertically_flip_on_load_local, stbi__vertically_flip_on_load_set; + +STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip) +{ + stbi__vertically_flip_on_load_local = flag_true_if_should_flip; + stbi__vertically_flip_on_load_set = 1; +} + +#define stbi__vertically_flip_on_load (stbi__vertically_flip_on_load_set \ + ? stbi__vertically_flip_on_load_local \ + : stbi__vertically_flip_on_load_global) +#endif // STBI_THREAD_LOCAL + +static void *stbi__load_main(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc) +{ + memset(ri, 0, sizeof(*ri)); // make sure it's initialized if we add new fields + ri->bits_per_channel = 8; // default is 8 so most paths don't have to be changed + ri->channel_order = STBI_ORDER_RGB; // all current input & output are this, but this is here so we can add BGR order + ri->num_channels = 0; + + #ifndef STBI_NO_JPEG + if (stbi__jpeg_test(s)) return stbi__jpeg_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_PNG + if (stbi__png_test(s)) return stbi__png_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_BMP + if (stbi__bmp_test(s)) return stbi__bmp_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_GIF + if (stbi__gif_test(s)) return stbi__gif_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_PSD + if (stbi__psd_test(s)) return stbi__psd_load(s,x,y,comp,req_comp, ri, bpc); + #else + STBI_NOTUSED(bpc); + #endif + #ifndef STBI_NO_PIC + if (stbi__pic_test(s)) return stbi__pic_load(s,x,y,comp,req_comp, ri); + #endif + #ifndef STBI_NO_PNM + if (stbi__pnm_test(s)) return stbi__pnm_load(s,x,y,comp,req_comp, ri); + #endif + + #ifndef STBI_NO_HDR + if (stbi__hdr_test(s)) { + float *hdr = stbi__hdr_load(s, x,y,comp,req_comp, ri); + return stbi__hdr_to_ldr(hdr, *x, *y, req_comp ? req_comp : *comp); + } + #endif + + #ifndef STBI_NO_TGA + // test tga last because it's a crappy test! + if (stbi__tga_test(s)) + return stbi__tga_load(s,x,y,comp,req_comp, ri); + #endif + + return stbi__errpuc("unknown image type", "Image not of any known type, or corrupt"); +} + +static stbi_uc *stbi__convert_16_to_8(stbi__uint16 *orig, int w, int h, int channels) +{ + int i; + int img_len = w * h * channels; + stbi_uc *reduced; + + reduced = (stbi_uc *) stbi__malloc(img_len); + if (reduced == NULL) return stbi__errpuc("outofmem", "Out of memory"); + + for (i = 0; i < img_len; ++i) + reduced[i] = (stbi_uc)((orig[i] >> 8) & 0xFF); // top half of each byte is sufficient approx of 16->8 bit scaling + + STBI_FREE(orig); + return reduced; +} + +static stbi__uint16 *stbi__convert_8_to_16(stbi_uc *orig, int w, int h, int channels) +{ + int i; + int img_len = w * h * channels; + stbi__uint16 *enlarged; + + enlarged = (stbi__uint16 *) stbi__malloc(img_len*2); + if (enlarged == NULL) return (stbi__uint16 *) stbi__errpuc("outofmem", "Out of memory"); + + for (i = 0; i < img_len; ++i) + enlarged[i] = (stbi__uint16)((orig[i] << 8) + orig[i]); // replicate to high and low byte, maps 0->0, 255->0xffff + + STBI_FREE(orig); + return enlarged; +} + +static void stbi__vertical_flip(void *image, int w, int h, int bytes_per_pixel) +{ + int row; + size_t bytes_per_row = (size_t)w * bytes_per_pixel; + stbi_uc temp[2048]; + stbi_uc *bytes = (stbi_uc *)image; + + for (row = 0; row < (h>>1); row++) { + stbi_uc *row0 = bytes + row*bytes_per_row; + stbi_uc *row1 = bytes + (h - row - 1)*bytes_per_row; + // swap row0 with row1 + size_t bytes_left = bytes_per_row; + while (bytes_left) { + size_t bytes_copy = (bytes_left < sizeof(temp)) ? bytes_left : sizeof(temp); + memcpy(temp, row0, bytes_copy); + memcpy(row0, row1, bytes_copy); + memcpy(row1, temp, bytes_copy); + row0 += bytes_copy; + row1 += bytes_copy; + bytes_left -= bytes_copy; + } + } +} + +#ifndef STBI_NO_GIF +static void stbi__vertical_flip_slices(void *image, int w, int h, int z, int bytes_per_pixel) +{ + int slice; + int slice_size = w * h * bytes_per_pixel; + + stbi_uc *bytes = (stbi_uc *)image; + for (slice = 0; slice < z; ++slice) { + stbi__vertical_flip(bytes, w, h, bytes_per_pixel); + bytes += slice_size; + } +} +#endif + +static unsigned char *stbi__load_and_postprocess_8bit(stbi__context *s, int *x, int *y, int *comp, int req_comp) +{ + stbi__result_info ri; + void *result = stbi__load_main(s, x, y, comp, req_comp, &ri, 8); + + if (result == NULL) + return NULL; + + // it is the responsibility of the loaders to make sure we get either 8 or 16 bit. + STBI_ASSERT(ri.bits_per_channel == 8 || ri.bits_per_channel == 16); + + if (ri.bits_per_channel != 8) { + result = stbi__convert_16_to_8((stbi__uint16 *) result, *x, *y, req_comp == 0 ? *comp : req_comp); + ri.bits_per_channel = 8; + } + + // @TODO: move stbi__convert_format to here + + if (stbi__vertically_flip_on_load) { + int channels = req_comp ? req_comp : *comp; + stbi__vertical_flip(result, *x, *y, channels * sizeof(stbi_uc)); + } + + return (unsigned char *) result; +} + +static stbi__uint16 *stbi__load_and_postprocess_16bit(stbi__context *s, int *x, int *y, int *comp, int req_comp) +{ + stbi__result_info ri; + void *result = stbi__load_main(s, x, y, comp, req_comp, &ri, 16); + + if (result == NULL) + return NULL; + + // it is the responsibility of the loaders to make sure we get either 8 or 16 bit. + STBI_ASSERT(ri.bits_per_channel == 8 || ri.bits_per_channel == 16); + + if (ri.bits_per_channel != 16) { + result = stbi__convert_8_to_16((stbi_uc *) result, *x, *y, req_comp == 0 ? *comp : req_comp); + ri.bits_per_channel = 16; + } + + // @TODO: move stbi__convert_format16 to here + // @TODO: special case RGB-to-Y (and RGBA-to-YA) for 8-bit-to-16-bit case to keep more precision + + if (stbi__vertically_flip_on_load) { + int channels = req_comp ? req_comp : *comp; + stbi__vertical_flip(result, *x, *y, channels * sizeof(stbi__uint16)); + } + + return (stbi__uint16 *) result; +} + +#if !defined(STBI_NO_HDR) && !defined(STBI_NO_LINEAR) +static void stbi__float_postprocess(float *result, int *x, int *y, int *comp, int req_comp) +{ + if (stbi__vertically_flip_on_load && result != NULL) { + int channels = req_comp ? req_comp : *comp; + stbi__vertical_flip(result, *x, *y, channels * sizeof(float)); + } +} +#endif + +#ifndef STBI_NO_STDIO + +#if defined(_MSC_VER) && defined(STBI_WINDOWS_UTF8) +STBI_EXTERN __declspec(dllimport) int __stdcall MultiByteToWideChar(unsigned int cp, unsigned long flags, const char *str, int cbmb, wchar_t *widestr, int cchwide); +STBI_EXTERN __declspec(dllimport) int __stdcall WideCharToMultiByte(unsigned int cp, unsigned long flags, const wchar_t *widestr, int cchwide, char *str, int cbmb, const char *defchar, int *used_default); +#endif + +#if defined(_MSC_VER) && defined(STBI_WINDOWS_UTF8) +STBIDEF int stbi_convert_wchar_to_utf8(char *buffer, size_t bufferlen, const wchar_t* input) +{ + return WideCharToMultiByte(65001 /* UTF8 */, 0, input, -1, buffer, (int) bufferlen, NULL, NULL); +} +#endif + +static FILE *stbi__fopen(char const *filename, char const *mode) +{ + FILE *f; +#if defined(_MSC_VER) && defined(STBI_WINDOWS_UTF8) + wchar_t wMode[64]; + wchar_t wFilename[1024]; + if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, filename, -1, wFilename, sizeof(wFilename))) + return 0; + + if (0 == MultiByteToWideChar(65001 /* UTF8 */, 0, mode, -1, wMode, sizeof(wMode))) + return 0; + +#if _MSC_VER >= 1400 + if (0 != _wfopen_s(&f, wFilename, wMode)) + f = 0; +#else + f = _wfopen(wFilename, wMode); +#endif + +#elif defined(_MSC_VER) && _MSC_VER >= 1400 + if (0 != fopen_s(&f, filename, mode)) + f=0; +#else + f = fopen(filename, mode); +#endif + return f; +} + + +STBIDEF stbi_uc *stbi_load(char const *filename, int *x, int *y, int *comp, int req_comp) +{ + FILE *f = stbi__fopen(filename, "rb"); + unsigned char *result; + if (!f) return stbi__errpuc("can't fopen", "Unable to open file"); + result = stbi_load_from_file(f,x,y,comp,req_comp); + fclose(f); + return result; +} + +STBIDEF stbi_uc *stbi_load_from_file(FILE *f, int *x, int *y, int *comp, int req_comp) +{ + unsigned char *result; + stbi__context s; + stbi__start_file(&s,f); + result = stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); + if (result) { + // need to 'unget' all the characters in the IO buffer + fseek(f, - (int) (s.img_buffer_end - s.img_buffer), SEEK_CUR); + } + return result; +} + +STBIDEF stbi__uint16 *stbi_load_from_file_16(FILE *f, int *x, int *y, int *comp, int req_comp) +{ + stbi__uint16 *result; + stbi__context s; + stbi__start_file(&s,f); + result = stbi__load_and_postprocess_16bit(&s,x,y,comp,req_comp); + if (result) { + // need to 'unget' all the characters in the IO buffer + fseek(f, - (int) (s.img_buffer_end - s.img_buffer), SEEK_CUR); + } + return result; +} + +STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp) +{ + FILE *f = stbi__fopen(filename, "rb"); + stbi__uint16 *result; + if (!f) return (stbi_us *) stbi__errpuc("can't fopen", "Unable to open file"); + result = stbi_load_from_file_16(f,x,y,comp,req_comp); + fclose(f); + return result; +} + + +#endif //!STBI_NO_STDIO + +STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__load_and_postprocess_16bit(&s,x,y,channels_in_file,desired_channels); +} + +STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *)clbk, user); + return stbi__load_and_postprocess_16bit(&s,x,y,channels_in_file,desired_channels); +} + +STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); +} + +STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); + return stbi__load_and_postprocess_8bit(&s,x,y,comp,req_comp); +} + +#ifndef STBI_NO_GIF +STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp) +{ + unsigned char *result; + stbi__context s; + stbi__start_mem(&s,buffer,len); + + result = (unsigned char*) stbi__load_gif_main(&s, delays, x, y, z, comp, req_comp); + if (stbi__vertically_flip_on_load) { + stbi__vertical_flip_slices( result, *x, *y, *z, *comp ); + } + + return result; +} +#endif + +#ifndef STBI_NO_LINEAR +static float *stbi__loadf_main(stbi__context *s, int *x, int *y, int *comp, int req_comp) +{ + unsigned char *data; + #ifndef STBI_NO_HDR + if (stbi__hdr_test(s)) { + stbi__result_info ri; + float *hdr_data = stbi__hdr_load(s,x,y,comp,req_comp, &ri); + if (hdr_data) + stbi__float_postprocess(hdr_data,x,y,comp,req_comp); + return hdr_data; + } + #endif + data = stbi__load_and_postprocess_8bit(s, x, y, comp, req_comp); + if (data) + return stbi__ldr_to_hdr(data, *x, *y, req_comp ? req_comp : *comp); + return stbi__errpf("unknown image type", "Image not of any known type, or corrupt"); +} + +STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__loadf_main(&s,x,y,comp,req_comp); +} + +STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); + return stbi__loadf_main(&s,x,y,comp,req_comp); +} + +#ifndef STBI_NO_STDIO +STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp) +{ + float *result; + FILE *f = stbi__fopen(filename, "rb"); + if (!f) return stbi__errpf("can't fopen", "Unable to open file"); + result = stbi_loadf_from_file(f,x,y,comp,req_comp); + fclose(f); + return result; +} + +STBIDEF float *stbi_loadf_from_file(FILE *f, int *x, int *y, int *comp, int req_comp) +{ + stbi__context s; + stbi__start_file(&s,f); + return stbi__loadf_main(&s,x,y,comp,req_comp); +} +#endif // !STBI_NO_STDIO + +#endif // !STBI_NO_LINEAR + +// these is-hdr-or-not is defined independent of whether STBI_NO_LINEAR is +// defined, for API simplicity; if STBI_NO_LINEAR is defined, it always +// reports false! + +STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len) +{ + #ifndef STBI_NO_HDR + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__hdr_test(&s); + #else + STBI_NOTUSED(buffer); + STBI_NOTUSED(len); + return 0; + #endif +} + +#ifndef STBI_NO_STDIO +STBIDEF int stbi_is_hdr (char const *filename) +{ + FILE *f = stbi__fopen(filename, "rb"); + int result=0; + if (f) { + result = stbi_is_hdr_from_file(f); + fclose(f); + } + return result; +} + +STBIDEF int stbi_is_hdr_from_file(FILE *f) +{ + #ifndef STBI_NO_HDR + long pos = ftell(f); + int res; + stbi__context s; + stbi__start_file(&s,f); + res = stbi__hdr_test(&s); + fseek(f, pos, SEEK_SET); + return res; + #else + STBI_NOTUSED(f); + return 0; + #endif +} +#endif // !STBI_NO_STDIO + +STBIDEF int stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user) +{ + #ifndef STBI_NO_HDR + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) clbk, user); + return stbi__hdr_test(&s); + #else + STBI_NOTUSED(clbk); + STBI_NOTUSED(user); + return 0; + #endif +} + +#ifndef STBI_NO_LINEAR +static float stbi__l2h_gamma=2.2f, stbi__l2h_scale=1.0f; + +STBIDEF void stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; } +STBIDEF void stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; } +#endif + +static float stbi__h2l_gamma_i=1.0f/2.2f, stbi__h2l_scale_i=1.0f; + +STBIDEF void stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; } +STBIDEF void stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; } + + +////////////////////////////////////////////////////////////////////////////// +// +// Common code used by all image loaders +// + +enum +{ + STBI__SCAN_load=0, + STBI__SCAN_type, + STBI__SCAN_header +}; + +static void stbi__refill_buffer(stbi__context *s) +{ + int n = (s->io.read)(s->io_user_data,(char*)s->buffer_start,s->buflen); + s->callback_already_read += (int) (s->img_buffer - s->img_buffer_original); + if (n == 0) { + // at end of file, treat same as if from memory, but need to handle case + // where s->img_buffer isn't pointing to safe memory, e.g. 0-byte file + s->read_from_callbacks = 0; + s->img_buffer = s->buffer_start; + s->img_buffer_end = s->buffer_start+1; + *s->img_buffer = 0; + } else { + s->img_buffer = s->buffer_start; + s->img_buffer_end = s->buffer_start + n; + } +} + +stbi_inline static stbi_uc stbi__get8(stbi__context *s) +{ + if (s->img_buffer < s->img_buffer_end) + return *s->img_buffer++; + if (s->read_from_callbacks) { + stbi__refill_buffer(s); + return *s->img_buffer++; + } + return 0; +} + +#if defined(STBI_NO_JPEG) && defined(STBI_NO_HDR) && defined(STBI_NO_PIC) && defined(STBI_NO_PNM) +// nothing +#else +stbi_inline static int stbi__at_eof(stbi__context *s) +{ + if (s->io.read) { + if (!(s->io.eof)(s->io_user_data)) return 0; + // if feof() is true, check if buffer = end + // special case: we've only got the special 0 character at the end + if (s->read_from_callbacks == 0) return 1; + } + + return s->img_buffer >= s->img_buffer_end; +} +#endif + +#if defined(STBI_NO_JPEG) && defined(STBI_NO_PNG) && defined(STBI_NO_BMP) && defined(STBI_NO_PSD) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) && defined(STBI_NO_PIC) +// nothing +#else +static void stbi__skip(stbi__context *s, int n) +{ + if (n == 0) return; // already there! + if (n < 0) { + s->img_buffer = s->img_buffer_end; + return; + } + if (s->io.read) { + int blen = (int) (s->img_buffer_end - s->img_buffer); + if (blen < n) { + s->img_buffer = s->img_buffer_end; + (s->io.skip)(s->io_user_data, n - blen); + return; + } + } + s->img_buffer += n; +} +#endif + +#if defined(STBI_NO_PNG) && defined(STBI_NO_TGA) && defined(STBI_NO_HDR) && defined(STBI_NO_PNM) +// nothing +#else +static int stbi__getn(stbi__context *s, stbi_uc *buffer, int n) +{ + if (s->io.read) { + int blen = (int) (s->img_buffer_end - s->img_buffer); + if (blen < n) { + int res, count; + + memcpy(buffer, s->img_buffer, blen); + + count = (s->io.read)(s->io_user_data, (char*) buffer + blen, n - blen); + res = (count == (n-blen)); + s->img_buffer = s->img_buffer_end; + return res; + } + } + + if (s->img_buffer+n <= s->img_buffer_end) { + memcpy(buffer, s->img_buffer, n); + s->img_buffer += n; + return 1; + } else + return 0; +} +#endif + +#if defined(STBI_NO_JPEG) && defined(STBI_NO_PNG) && defined(STBI_NO_PSD) && defined(STBI_NO_PIC) +// nothing +#else +static int stbi__get16be(stbi__context *s) +{ + int z = stbi__get8(s); + return (z << 8) + stbi__get8(s); +} +#endif + +#if defined(STBI_NO_PNG) && defined(STBI_NO_PSD) && defined(STBI_NO_PIC) +// nothing +#else +static stbi__uint32 stbi__get32be(stbi__context *s) +{ + stbi__uint32 z = stbi__get16be(s); + return (z << 16) + stbi__get16be(s); +} +#endif + +#if defined(STBI_NO_BMP) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) +// nothing +#else +static int stbi__get16le(stbi__context *s) +{ + int z = stbi__get8(s); + return z + (stbi__get8(s) << 8); +} +#endif + +#ifndef STBI_NO_BMP +static stbi__uint32 stbi__get32le(stbi__context *s) +{ + stbi__uint32 z = stbi__get16le(s); + return z + (stbi__get16le(s) << 16); +} +#endif + +#define STBI__BYTECAST(x) ((stbi_uc) ((x) & 255)) // truncate int to byte without warnings + +#if defined(STBI_NO_JPEG) && defined(STBI_NO_PNG) && defined(STBI_NO_BMP) && defined(STBI_NO_PSD) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) && defined(STBI_NO_PIC) && defined(STBI_NO_PNM) +// nothing +#else +////////////////////////////////////////////////////////////////////////////// +// +// generic converter from built-in img_n to req_comp +// individual types do this automatically as much as possible (e.g. jpeg +// does all cases internally since it needs to colorspace convert anyway, +// and it never has alpha, so very few cases ). png can automatically +// interleave an alpha=255 channel, but falls back to this for other cases +// +// assume data buffer is malloced, so malloc a new one and free that one +// only failure mode is malloc failing + +static stbi_uc stbi__compute_y(int r, int g, int b) +{ + return (stbi_uc) (((r*77) + (g*150) + (29*b)) >> 8); +} +#endif + +#if defined(STBI_NO_PNG) && defined(STBI_NO_BMP) && defined(STBI_NO_PSD) && defined(STBI_NO_TGA) && defined(STBI_NO_GIF) && defined(STBI_NO_PIC) && defined(STBI_NO_PNM) +// nothing +#else +static unsigned char *stbi__convert_format(unsigned char *data, int img_n, int req_comp, unsigned int x, unsigned int y) +{ + int i,j; + unsigned char *good; + + if (req_comp == img_n) return data; + STBI_ASSERT(req_comp >= 1 && req_comp <= 4); + + good = (unsigned char *) stbi__malloc_mad3(req_comp, x, y, 0); + if (good == NULL) { + STBI_FREE(data); + return stbi__errpuc("outofmem", "Out of memory"); + } + + for (j=0; j < (int) y; ++j) { + unsigned char *src = data + j * x * img_n ; + unsigned char *dest = good + j * x * req_comp; + + #define STBI__COMBO(a,b) ((a)*8+(b)) + #define STBI__CASE(a,b) case STBI__COMBO(a,b): for(i=x-1; i >= 0; --i, src += a, dest += b) + // convert source image with img_n components to one with req_comp components; + // avoid switch per pixel, so use switch per scanline and massive macros + switch (STBI__COMBO(img_n, req_comp)) { + STBI__CASE(1,2) { dest[0]=src[0]; dest[1]=255; } break; + STBI__CASE(1,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(1,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=255; } break; + STBI__CASE(2,1) { dest[0]=src[0]; } break; + STBI__CASE(2,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(2,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=src[1]; } break; + STBI__CASE(3,4) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2];dest[3]=255; } break; + STBI__CASE(3,1) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); } break; + STBI__CASE(3,2) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); dest[1] = 255; } break; + STBI__CASE(4,1) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); } break; + STBI__CASE(4,2) { dest[0]=stbi__compute_y(src[0],src[1],src[2]); dest[1] = src[3]; } break; + STBI__CASE(4,3) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2]; } break; + default: STBI_ASSERT(0); STBI_FREE(data); STBI_FREE(good); return stbi__errpuc("unsupported", "Unsupported format conversion"); + } + #undef STBI__CASE + } + + STBI_FREE(data); + return good; +} +#endif + +#if defined(STBI_NO_PNG) && defined(STBI_NO_PSD) +// nothing +#else +static stbi__uint16 stbi__compute_y_16(int r, int g, int b) +{ + return (stbi__uint16) (((r*77) + (g*150) + (29*b)) >> 8); +} +#endif + +#if defined(STBI_NO_PNG) && defined(STBI_NO_PSD) +// nothing +#else +static stbi__uint16 *stbi__convert_format16(stbi__uint16 *data, int img_n, int req_comp, unsigned int x, unsigned int y) +{ + int i,j; + stbi__uint16 *good; + + if (req_comp == img_n) return data; + STBI_ASSERT(req_comp >= 1 && req_comp <= 4); + + good = (stbi__uint16 *) stbi__malloc(req_comp * x * y * 2); + if (good == NULL) { + STBI_FREE(data); + return (stbi__uint16 *) stbi__errpuc("outofmem", "Out of memory"); + } + + for (j=0; j < (int) y; ++j) { + stbi__uint16 *src = data + j * x * img_n ; + stbi__uint16 *dest = good + j * x * req_comp; + + #define STBI__COMBO(a,b) ((a)*8+(b)) + #define STBI__CASE(a,b) case STBI__COMBO(a,b): for(i=x-1; i >= 0; --i, src += a, dest += b) + // convert source image with img_n components to one with req_comp components; + // avoid switch per pixel, so use switch per scanline and massive macros + switch (STBI__COMBO(img_n, req_comp)) { + STBI__CASE(1,2) { dest[0]=src[0]; dest[1]=0xffff; } break; + STBI__CASE(1,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(1,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=0xffff; } break; + STBI__CASE(2,1) { dest[0]=src[0]; } break; + STBI__CASE(2,3) { dest[0]=dest[1]=dest[2]=src[0]; } break; + STBI__CASE(2,4) { dest[0]=dest[1]=dest[2]=src[0]; dest[3]=src[1]; } break; + STBI__CASE(3,4) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2];dest[3]=0xffff; } break; + STBI__CASE(3,1) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); } break; + STBI__CASE(3,2) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); dest[1] = 0xffff; } break; + STBI__CASE(4,1) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); } break; + STBI__CASE(4,2) { dest[0]=stbi__compute_y_16(src[0],src[1],src[2]); dest[1] = src[3]; } break; + STBI__CASE(4,3) { dest[0]=src[0];dest[1]=src[1];dest[2]=src[2]; } break; + default: STBI_ASSERT(0); STBI_FREE(data); STBI_FREE(good); return (stbi__uint16*) stbi__errpuc("unsupported", "Unsupported format conversion"); + } + #undef STBI__CASE + } + + STBI_FREE(data); + return good; +} +#endif + +#ifndef STBI_NO_LINEAR +static float *stbi__ldr_to_hdr(stbi_uc *data, int x, int y, int comp) +{ + int i,k,n; + float *output; + if (!data) return NULL; + output = (float *) stbi__malloc_mad4(x, y, comp, sizeof(float), 0); + if (output == NULL) { STBI_FREE(data); return stbi__errpf("outofmem", "Out of memory"); } + // compute number of non-alpha components + if (comp & 1) n = comp; else n = comp-1; + for (i=0; i < x*y; ++i) { + for (k=0; k < n; ++k) { + output[i*comp + k] = (float) (pow(data[i*comp+k]/255.0f, stbi__l2h_gamma) * stbi__l2h_scale); + } + } + if (n < comp) { + for (i=0; i < x*y; ++i) { + output[i*comp + n] = data[i*comp + n]/255.0f; + } + } + STBI_FREE(data); + return output; +} +#endif + +#ifndef STBI_NO_HDR +#define stbi__float2int(x) ((int) (x)) +static stbi_uc *stbi__hdr_to_ldr(float *data, int x, int y, int comp) +{ + int i,k,n; + stbi_uc *output; + if (!data) return NULL; + output = (stbi_uc *) stbi__malloc_mad3(x, y, comp, 0); + if (output == NULL) { STBI_FREE(data); return stbi__errpuc("outofmem", "Out of memory"); } + // compute number of non-alpha components + if (comp & 1) n = comp; else n = comp-1; + for (i=0; i < x*y; ++i) { + for (k=0; k < n; ++k) { + float z = (float) pow(data[i*comp+k]*stbi__h2l_scale_i, stbi__h2l_gamma_i) * 255 + 0.5f; + if (z < 0) z = 0; + if (z > 255) z = 255; + output[i*comp + k] = (stbi_uc) stbi__float2int(z); + } + if (k < comp) { + float z = data[i*comp+k] * 255 + 0.5f; + if (z < 0) z = 0; + if (z > 255) z = 255; + output[i*comp + k] = (stbi_uc) stbi__float2int(z); + } + } + STBI_FREE(data); + return output; +} +#endif + +////////////////////////////////////////////////////////////////////////////// +// +// "baseline" JPEG/JFIF decoder +// +// simple implementation +// - doesn't support delayed output of y-dimension +// - simple interface (only one output format: 8-bit interleaved RGB) +// - doesn't try to recover corrupt jpegs +// - doesn't allow partial loading, loading multiple at once +// - still fast on x86 (copying globals into locals doesn't help x86) +// - allocates lots of intermediate memory (full size of all components) +// - non-interleaved case requires this anyway +// - allows good upsampling (see next) +// high-quality +// - upsampled channels are bilinearly interpolated, even across blocks +// - quality integer IDCT derived from IJG's 'slow' +// performance +// - fast huffman; reasonable integer IDCT +// - some SIMD kernels for common paths on targets with SSE2/NEON +// - uses a lot of intermediate memory, could cache poorly + +#ifndef STBI_NO_JPEG + +// huffman decoding acceleration +#define FAST_BITS 9 // larger handles more cases; smaller stomps less cache + +typedef struct +{ + stbi_uc fast[1 << FAST_BITS]; + // weirdly, repacking this into AoS is a 10% speed loss, instead of a win + stbi__uint16 code[256]; + stbi_uc values[256]; + stbi_uc size[257]; + unsigned int maxcode[18]; + int delta[17]; // old 'firstsymbol' - old 'firstcode' +} stbi__huffman; + +typedef struct +{ + stbi__context *s; + stbi__huffman huff_dc[4]; + stbi__huffman huff_ac[4]; + stbi__uint16 dequant[4][64]; + stbi__int16 fast_ac[4][1 << FAST_BITS]; + +// sizes for components, interleaved MCUs + int img_h_max, img_v_max; + int img_mcu_x, img_mcu_y; + int img_mcu_w, img_mcu_h; + +// definition of jpeg image component + struct + { + int id; + int h,v; + int tq; + int hd,ha; + int dc_pred; + + int x,y,w2,h2; + stbi_uc *data; + void *raw_data, *raw_coeff; + stbi_uc *linebuf; + short *coeff; // progressive only + int coeff_w, coeff_h; // number of 8x8 coefficient blocks + } img_comp[4]; + + stbi__uint32 code_buffer; // jpeg entropy-coded buffer + int code_bits; // number of valid bits + unsigned char marker; // marker seen while filling entropy buffer + int nomore; // flag if we saw a marker so must stop + + int progressive; + int spec_start; + int spec_end; + int succ_high; + int succ_low; + int eob_run; + int jfif; + int app14_color_transform; // Adobe APP14 tag + int rgb; + + int scan_n, order[4]; + int restart_interval, todo; + +// kernels + void (*idct_block_kernel)(stbi_uc *out, int out_stride, short data[64]); + void (*YCbCr_to_RGB_kernel)(stbi_uc *out, const stbi_uc *y, const stbi_uc *pcb, const stbi_uc *pcr, int count, int step); + stbi_uc *(*resample_row_hv_2_kernel)(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs); +} stbi__jpeg; + +static int stbi__build_huffman(stbi__huffman *h, int *count) +{ + int i,j,k=0; + unsigned int code; + // build size list for each symbol (from JPEG spec) + for (i=0; i < 16; ++i) + for (j=0; j < count[i]; ++j) + h->size[k++] = (stbi_uc) (i+1); + h->size[k] = 0; + + // compute actual symbols (from jpeg spec) + code = 0; + k = 0; + for(j=1; j <= 16; ++j) { + // compute delta to add to code to compute symbol id + h->delta[j] = k - code; + if (h->size[k] == j) { + while (h->size[k] == j) + h->code[k++] = (stbi__uint16) (code++); + if (code-1 >= (1u << j)) return stbi__err("bad code lengths","Corrupt JPEG"); + } + // compute largest code + 1 for this size, preshifted as needed later + h->maxcode[j] = code << (16-j); + code <<= 1; + } + h->maxcode[j] = 0xffffffff; + + // build non-spec acceleration table; 255 is flag for not-accelerated + memset(h->fast, 255, 1 << FAST_BITS); + for (i=0; i < k; ++i) { + int s = h->size[i]; + if (s <= FAST_BITS) { + int c = h->code[i] << (FAST_BITS-s); + int m = 1 << (FAST_BITS-s); + for (j=0; j < m; ++j) { + h->fast[c+j] = (stbi_uc) i; + } + } + } + return 1; +} + +// build a table that decodes both magnitude and value of small ACs in +// one go. +static void stbi__build_fast_ac(stbi__int16 *fast_ac, stbi__huffman *h) +{ + int i; + for (i=0; i < (1 << FAST_BITS); ++i) { + stbi_uc fast = h->fast[i]; + fast_ac[i] = 0; + if (fast < 255) { + int rs = h->values[fast]; + int run = (rs >> 4) & 15; + int magbits = rs & 15; + int len = h->size[fast]; + + if (magbits && len + magbits <= FAST_BITS) { + // magnitude code followed by receive_extend code + int k = ((i << len) & ((1 << FAST_BITS) - 1)) >> (FAST_BITS - magbits); + int m = 1 << (magbits - 1); + if (k < m) k += (~0U << magbits) + 1; + // if the result is small enough, we can fit it in fast_ac table + if (k >= -128 && k <= 127) + fast_ac[i] = (stbi__int16) ((k * 256) + (run * 16) + (len + magbits)); + } + } + } +} + +static void stbi__grow_buffer_unsafe(stbi__jpeg *j) +{ + do { + unsigned int b = j->nomore ? 0 : stbi__get8(j->s); + if (b == 0xff) { + int c = stbi__get8(j->s); + while (c == 0xff) c = stbi__get8(j->s); // consume fill bytes + if (c != 0) { + j->marker = (unsigned char) c; + j->nomore = 1; + return; + } + } + j->code_buffer |= b << (24 - j->code_bits); + j->code_bits += 8; + } while (j->code_bits <= 24); +} + +// (1 << n) - 1 +static const stbi__uint32 stbi__bmask[17]={0,1,3,7,15,31,63,127,255,511,1023,2047,4095,8191,16383,32767,65535}; + +// decode a jpeg huffman value from the bitstream +stbi_inline static int stbi__jpeg_huff_decode(stbi__jpeg *j, stbi__huffman *h) +{ + unsigned int temp; + int c,k; + + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + + // look at the top FAST_BITS and determine what symbol ID it is, + // if the code is <= FAST_BITS + c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); + k = h->fast[c]; + if (k < 255) { + int s = h->size[k]; + if (s > j->code_bits) + return -1; + j->code_buffer <<= s; + j->code_bits -= s; + return h->values[k]; + } + + // naive test is to shift the code_buffer down so k bits are + // valid, then test against maxcode. To speed this up, we've + // preshifted maxcode left so that it has (16-k) 0s at the + // end; in other words, regardless of the number of bits, it + // wants to be compared against something shifted to have 16; + // that way we don't need to shift inside the loop. + temp = j->code_buffer >> 16; + for (k=FAST_BITS+1 ; ; ++k) + if (temp < h->maxcode[k]) + break; + if (k == 17) { + // error! code not found + j->code_bits -= 16; + return -1; + } + + if (k > j->code_bits) + return -1; + + // convert the huffman code to the symbol id + c = ((j->code_buffer >> (32 - k)) & stbi__bmask[k]) + h->delta[k]; + STBI_ASSERT((((j->code_buffer) >> (32 - h->size[c])) & stbi__bmask[h->size[c]]) == h->code[c]); + + // convert the id to a symbol + j->code_bits -= k; + j->code_buffer <<= k; + return h->values[c]; +} + +// bias[n] = (-1<code_bits < n) stbi__grow_buffer_unsafe(j); + + sgn = (stbi__int32)j->code_buffer >> 31; // sign bit is always in MSB + k = stbi_lrot(j->code_buffer, n); + if (n < 0 || n >= (int) (sizeof(stbi__bmask)/sizeof(*stbi__bmask))) return 0; + j->code_buffer = k & ~stbi__bmask[n]; + k &= stbi__bmask[n]; + j->code_bits -= n; + return k + (stbi__jbias[n] & ~sgn); +} + +// get some unsigned bits +stbi_inline static int stbi__jpeg_get_bits(stbi__jpeg *j, int n) +{ + unsigned int k; + if (j->code_bits < n) stbi__grow_buffer_unsafe(j); + k = stbi_lrot(j->code_buffer, n); + j->code_buffer = k & ~stbi__bmask[n]; + k &= stbi__bmask[n]; + j->code_bits -= n; + return k; +} + +stbi_inline static int stbi__jpeg_get_bit(stbi__jpeg *j) +{ + unsigned int k; + if (j->code_bits < 1) stbi__grow_buffer_unsafe(j); + k = j->code_buffer; + j->code_buffer <<= 1; + --j->code_bits; + return k & 0x80000000; +} + +// given a value that's at position X in the zigzag stream, +// where does it appear in the 8x8 matrix coded as row-major? +static const stbi_uc stbi__jpeg_dezigzag[64+15] = +{ + 0, 1, 8, 16, 9, 2, 3, 10, + 17, 24, 32, 25, 18, 11, 4, 5, + 12, 19, 26, 33, 40, 48, 41, 34, + 27, 20, 13, 6, 7, 14, 21, 28, + 35, 42, 49, 56, 57, 50, 43, 36, + 29, 22, 15, 23, 30, 37, 44, 51, + 58, 59, 52, 45, 38, 31, 39, 46, + 53, 60, 61, 54, 47, 55, 62, 63, + // let corrupt input sample past end + 63, 63, 63, 63, 63, 63, 63, 63, + 63, 63, 63, 63, 63, 63, 63 +}; + +// decode one 64-entry block-- +static int stbi__jpeg_decode_block(stbi__jpeg *j, short data[64], stbi__huffman *hdc, stbi__huffman *hac, stbi__int16 *fac, int b, stbi__uint16 *dequant) +{ + int diff,dc,k; + int t; + + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + t = stbi__jpeg_huff_decode(j, hdc); + if (t < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + + // 0 all the ac values now so we can do it 32-bits at a time + memset(data,0,64*sizeof(data[0])); + + diff = t ? stbi__extend_receive(j, t) : 0; + dc = j->img_comp[b].dc_pred + diff; + j->img_comp[b].dc_pred = dc; + data[0] = (short) (dc * dequant[0]); + + // decode AC components, see JPEG spec + k = 1; + do { + unsigned int zig; + int c,r,s; + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); + r = fac[c]; + if (r) { // fast-AC path + k += (r >> 4) & 15; // run + s = r & 15; // combined length + j->code_buffer <<= s; + j->code_bits -= s; + // decode into unzigzag'd location + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) ((r >> 8) * dequant[zig]); + } else { + int rs = stbi__jpeg_huff_decode(j, hac); + if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + s = rs & 15; + r = rs >> 4; + if (s == 0) { + if (rs != 0xf0) break; // end block + k += 16; + } else { + k += r; + // decode into unzigzag'd location + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) (stbi__extend_receive(j,s) * dequant[zig]); + } + } + } while (k < 64); + return 1; +} + +static int stbi__jpeg_decode_block_prog_dc(stbi__jpeg *j, short data[64], stbi__huffman *hdc, int b) +{ + int diff,dc; + int t; + if (j->spec_end != 0) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); + + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + + if (j->succ_high == 0) { + // first scan for DC coefficient, must be first + memset(data,0,64*sizeof(data[0])); // 0 all the ac values now + t = stbi__jpeg_huff_decode(j, hdc); + if (t == -1) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); + diff = t ? stbi__extend_receive(j, t) : 0; + + dc = j->img_comp[b].dc_pred + diff; + j->img_comp[b].dc_pred = dc; + data[0] = (short) (dc << j->succ_low); + } else { + // refinement scan for DC coefficient + if (stbi__jpeg_get_bit(j)) + data[0] += (short) (1 << j->succ_low); + } + return 1; +} + +// @OPTIMIZE: store non-zigzagged during the decode passes, +// and only de-zigzag when dequantizing +static int stbi__jpeg_decode_block_prog_ac(stbi__jpeg *j, short data[64], stbi__huffman *hac, stbi__int16 *fac) +{ + int k; + if (j->spec_start == 0) return stbi__err("can't merge dc and ac", "Corrupt JPEG"); + + if (j->succ_high == 0) { + int shift = j->succ_low; + + if (j->eob_run) { + --j->eob_run; + return 1; + } + + k = j->spec_start; + do { + unsigned int zig; + int c,r,s; + if (j->code_bits < 16) stbi__grow_buffer_unsafe(j); + c = (j->code_buffer >> (32 - FAST_BITS)) & ((1 << FAST_BITS)-1); + r = fac[c]; + if (r) { // fast-AC path + k += (r >> 4) & 15; // run + s = r & 15; // combined length + j->code_buffer <<= s; + j->code_bits -= s; + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) ((r >> 8) << shift); + } else { + int rs = stbi__jpeg_huff_decode(j, hac); + if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + s = rs & 15; + r = rs >> 4; + if (s == 0) { + if (r < 15) { + j->eob_run = (1 << r); + if (r) + j->eob_run += stbi__jpeg_get_bits(j, r); + --j->eob_run; + break; + } + k += 16; + } else { + k += r; + zig = stbi__jpeg_dezigzag[k++]; + data[zig] = (short) (stbi__extend_receive(j,s) << shift); + } + } + } while (k <= j->spec_end); + } else { + // refinement scan for these AC coefficients + + short bit = (short) (1 << j->succ_low); + + if (j->eob_run) { + --j->eob_run; + for (k = j->spec_start; k <= j->spec_end; ++k) { + short *p = &data[stbi__jpeg_dezigzag[k]]; + if (*p != 0) + if (stbi__jpeg_get_bit(j)) + if ((*p & bit)==0) { + if (*p > 0) + *p += bit; + else + *p -= bit; + } + } + } else { + k = j->spec_start; + do { + int r,s; + int rs = stbi__jpeg_huff_decode(j, hac); // @OPTIMIZE see if we can use the fast path here, advance-by-r is so slow, eh + if (rs < 0) return stbi__err("bad huffman code","Corrupt JPEG"); + s = rs & 15; + r = rs >> 4; + if (s == 0) { + if (r < 15) { + j->eob_run = (1 << r) - 1; + if (r) + j->eob_run += stbi__jpeg_get_bits(j, r); + r = 64; // force end of block + } else { + // r=15 s=0 should write 16 0s, so we just do + // a run of 15 0s and then write s (which is 0), + // so we don't have to do anything special here + } + } else { + if (s != 1) return stbi__err("bad huffman code", "Corrupt JPEG"); + // sign bit + if (stbi__jpeg_get_bit(j)) + s = bit; + else + s = -bit; + } + + // advance by r + while (k <= j->spec_end) { + short *p = &data[stbi__jpeg_dezigzag[k++]]; + if (*p != 0) { + if (stbi__jpeg_get_bit(j)) + if ((*p & bit)==0) { + if (*p > 0) + *p += bit; + else + *p -= bit; + } + } else { + if (r == 0) { + *p = (short) s; + break; + } + --r; + } + } + } while (k <= j->spec_end); + } + } + return 1; +} + +// take a -128..127 value and stbi__clamp it and convert to 0..255 +stbi_inline static stbi_uc stbi__clamp(int x) +{ + // trick to use a single test to catch both cases + if ((unsigned int) x > 255) { + if (x < 0) return 0; + if (x > 255) return 255; + } + return (stbi_uc) x; +} + +#define stbi__f2f(x) ((int) (((x) * 4096 + 0.5))) +#define stbi__fsh(x) ((x) * 4096) + +// derived from jidctint -- DCT_ISLOW +#define STBI__IDCT_1D(s0,s1,s2,s3,s4,s5,s6,s7) \ + int t0,t1,t2,t3,p1,p2,p3,p4,p5,x0,x1,x2,x3; \ + p2 = s2; \ + p3 = s6; \ + p1 = (p2+p3) * stbi__f2f(0.5411961f); \ + t2 = p1 + p3*stbi__f2f(-1.847759065f); \ + t3 = p1 + p2*stbi__f2f( 0.765366865f); \ + p2 = s0; \ + p3 = s4; \ + t0 = stbi__fsh(p2+p3); \ + t1 = stbi__fsh(p2-p3); \ + x0 = t0+t3; \ + x3 = t0-t3; \ + x1 = t1+t2; \ + x2 = t1-t2; \ + t0 = s7; \ + t1 = s5; \ + t2 = s3; \ + t3 = s1; \ + p3 = t0+t2; \ + p4 = t1+t3; \ + p1 = t0+t3; \ + p2 = t1+t2; \ + p5 = (p3+p4)*stbi__f2f( 1.175875602f); \ + t0 = t0*stbi__f2f( 0.298631336f); \ + t1 = t1*stbi__f2f( 2.053119869f); \ + t2 = t2*stbi__f2f( 3.072711026f); \ + t3 = t3*stbi__f2f( 1.501321110f); \ + p1 = p5 + p1*stbi__f2f(-0.899976223f); \ + p2 = p5 + p2*stbi__f2f(-2.562915447f); \ + p3 = p3*stbi__f2f(-1.961570560f); \ + p4 = p4*stbi__f2f(-0.390180644f); \ + t3 += p1+p4; \ + t2 += p2+p3; \ + t1 += p2+p4; \ + t0 += p1+p3; + +static void stbi__idct_block(stbi_uc *out, int out_stride, short data[64]) +{ + int i,val[64],*v=val; + stbi_uc *o; + short *d = data; + + // columns + for (i=0; i < 8; ++i,++d, ++v) { + // if all zeroes, shortcut -- this avoids dequantizing 0s and IDCTing + if (d[ 8]==0 && d[16]==0 && d[24]==0 && d[32]==0 + && d[40]==0 && d[48]==0 && d[56]==0) { + // no shortcut 0 seconds + // (1|2|3|4|5|6|7)==0 0 seconds + // all separate -0.047 seconds + // 1 && 2|3 && 4|5 && 6|7: -0.047 seconds + int dcterm = d[0]*4; + v[0] = v[8] = v[16] = v[24] = v[32] = v[40] = v[48] = v[56] = dcterm; + } else { + STBI__IDCT_1D(d[ 0],d[ 8],d[16],d[24],d[32],d[40],d[48],d[56]) + // constants scaled things up by 1<<12; let's bring them back + // down, but keep 2 extra bits of precision + x0 += 512; x1 += 512; x2 += 512; x3 += 512; + v[ 0] = (x0+t3) >> 10; + v[56] = (x0-t3) >> 10; + v[ 8] = (x1+t2) >> 10; + v[48] = (x1-t2) >> 10; + v[16] = (x2+t1) >> 10; + v[40] = (x2-t1) >> 10; + v[24] = (x3+t0) >> 10; + v[32] = (x3-t0) >> 10; + } + } + + for (i=0, v=val, o=out; i < 8; ++i,v+=8,o+=out_stride) { + // no fast case since the first 1D IDCT spread components out + STBI__IDCT_1D(v[0],v[1],v[2],v[3],v[4],v[5],v[6],v[7]) + // constants scaled things up by 1<<12, plus we had 1<<2 from first + // loop, plus horizontal and vertical each scale by sqrt(8) so together + // we've got an extra 1<<3, so 1<<17 total we need to remove. + // so we want to round that, which means adding 0.5 * 1<<17, + // aka 65536. Also, we'll end up with -128 to 127 that we want + // to encode as 0..255 by adding 128, so we'll add that before the shift + x0 += 65536 + (128<<17); + x1 += 65536 + (128<<17); + x2 += 65536 + (128<<17); + x3 += 65536 + (128<<17); + // tried computing the shifts into temps, or'ing the temps to see + // if any were out of range, but that was slower + o[0] = stbi__clamp((x0+t3) >> 17); + o[7] = stbi__clamp((x0-t3) >> 17); + o[1] = stbi__clamp((x1+t2) >> 17); + o[6] = stbi__clamp((x1-t2) >> 17); + o[2] = stbi__clamp((x2+t1) >> 17); + o[5] = stbi__clamp((x2-t1) >> 17); + o[3] = stbi__clamp((x3+t0) >> 17); + o[4] = stbi__clamp((x3-t0) >> 17); + } +} + +#ifdef STBI_SSE2 +// sse2 integer IDCT. not the fastest possible implementation but it +// produces bit-identical results to the generic C version so it's +// fully "transparent". +static void stbi__idct_simd(stbi_uc *out, int out_stride, short data[64]) +{ + // This is constructed to match our regular (generic) integer IDCT exactly. + __m128i row0, row1, row2, row3, row4, row5, row6, row7; + __m128i tmp; + + // dot product constant: even elems=x, odd elems=y + #define dct_const(x,y) _mm_setr_epi16((x),(y),(x),(y),(x),(y),(x),(y)) + + // out(0) = c0[even]*x + c0[odd]*y (c0, x, y 16-bit, out 32-bit) + // out(1) = c1[even]*x + c1[odd]*y + #define dct_rot(out0,out1, x,y,c0,c1) \ + __m128i c0##lo = _mm_unpacklo_epi16((x),(y)); \ + __m128i c0##hi = _mm_unpackhi_epi16((x),(y)); \ + __m128i out0##_l = _mm_madd_epi16(c0##lo, c0); \ + __m128i out0##_h = _mm_madd_epi16(c0##hi, c0); \ + __m128i out1##_l = _mm_madd_epi16(c0##lo, c1); \ + __m128i out1##_h = _mm_madd_epi16(c0##hi, c1) + + // out = in << 12 (in 16-bit, out 32-bit) + #define dct_widen(out, in) \ + __m128i out##_l = _mm_srai_epi32(_mm_unpacklo_epi16(_mm_setzero_si128(), (in)), 4); \ + __m128i out##_h = _mm_srai_epi32(_mm_unpackhi_epi16(_mm_setzero_si128(), (in)), 4) + + // wide add + #define dct_wadd(out, a, b) \ + __m128i out##_l = _mm_add_epi32(a##_l, b##_l); \ + __m128i out##_h = _mm_add_epi32(a##_h, b##_h) + + // wide sub + #define dct_wsub(out, a, b) \ + __m128i out##_l = _mm_sub_epi32(a##_l, b##_l); \ + __m128i out##_h = _mm_sub_epi32(a##_h, b##_h) + + // butterfly a/b, add bias, then shift by "s" and pack + #define dct_bfly32o(out0, out1, a,b,bias,s) \ + { \ + __m128i abiased_l = _mm_add_epi32(a##_l, bias); \ + __m128i abiased_h = _mm_add_epi32(a##_h, bias); \ + dct_wadd(sum, abiased, b); \ + dct_wsub(dif, abiased, b); \ + out0 = _mm_packs_epi32(_mm_srai_epi32(sum_l, s), _mm_srai_epi32(sum_h, s)); \ + out1 = _mm_packs_epi32(_mm_srai_epi32(dif_l, s), _mm_srai_epi32(dif_h, s)); \ + } + + // 8-bit interleave step (for transposes) + #define dct_interleave8(a, b) \ + tmp = a; \ + a = _mm_unpacklo_epi8(a, b); \ + b = _mm_unpackhi_epi8(tmp, b) + + // 16-bit interleave step (for transposes) + #define dct_interleave16(a, b) \ + tmp = a; \ + a = _mm_unpacklo_epi16(a, b); \ + b = _mm_unpackhi_epi16(tmp, b) + + #define dct_pass(bias,shift) \ + { \ + /* even part */ \ + dct_rot(t2e,t3e, row2,row6, rot0_0,rot0_1); \ + __m128i sum04 = _mm_add_epi16(row0, row4); \ + __m128i dif04 = _mm_sub_epi16(row0, row4); \ + dct_widen(t0e, sum04); \ + dct_widen(t1e, dif04); \ + dct_wadd(x0, t0e, t3e); \ + dct_wsub(x3, t0e, t3e); \ + dct_wadd(x1, t1e, t2e); \ + dct_wsub(x2, t1e, t2e); \ + /* odd part */ \ + dct_rot(y0o,y2o, row7,row3, rot2_0,rot2_1); \ + dct_rot(y1o,y3o, row5,row1, rot3_0,rot3_1); \ + __m128i sum17 = _mm_add_epi16(row1, row7); \ + __m128i sum35 = _mm_add_epi16(row3, row5); \ + dct_rot(y4o,y5o, sum17,sum35, rot1_0,rot1_1); \ + dct_wadd(x4, y0o, y4o); \ + dct_wadd(x5, y1o, y5o); \ + dct_wadd(x6, y2o, y5o); \ + dct_wadd(x7, y3o, y4o); \ + dct_bfly32o(row0,row7, x0,x7,bias,shift); \ + dct_bfly32o(row1,row6, x1,x6,bias,shift); \ + dct_bfly32o(row2,row5, x2,x5,bias,shift); \ + dct_bfly32o(row3,row4, x3,x4,bias,shift); \ + } + + __m128i rot0_0 = dct_const(stbi__f2f(0.5411961f), stbi__f2f(0.5411961f) + stbi__f2f(-1.847759065f)); + __m128i rot0_1 = dct_const(stbi__f2f(0.5411961f) + stbi__f2f( 0.765366865f), stbi__f2f(0.5411961f)); + __m128i rot1_0 = dct_const(stbi__f2f(1.175875602f) + stbi__f2f(-0.899976223f), stbi__f2f(1.175875602f)); + __m128i rot1_1 = dct_const(stbi__f2f(1.175875602f), stbi__f2f(1.175875602f) + stbi__f2f(-2.562915447f)); + __m128i rot2_0 = dct_const(stbi__f2f(-1.961570560f) + stbi__f2f( 0.298631336f), stbi__f2f(-1.961570560f)); + __m128i rot2_1 = dct_const(stbi__f2f(-1.961570560f), stbi__f2f(-1.961570560f) + stbi__f2f( 3.072711026f)); + __m128i rot3_0 = dct_const(stbi__f2f(-0.390180644f) + stbi__f2f( 2.053119869f), stbi__f2f(-0.390180644f)); + __m128i rot3_1 = dct_const(stbi__f2f(-0.390180644f), stbi__f2f(-0.390180644f) + stbi__f2f( 1.501321110f)); + + // rounding biases in column/row passes, see stbi__idct_block for explanation. + __m128i bias_0 = _mm_set1_epi32(512); + __m128i bias_1 = _mm_set1_epi32(65536 + (128<<17)); + + // load + row0 = _mm_load_si128((const __m128i *) (data + 0*8)); + row1 = _mm_load_si128((const __m128i *) (data + 1*8)); + row2 = _mm_load_si128((const __m128i *) (data + 2*8)); + row3 = _mm_load_si128((const __m128i *) (data + 3*8)); + row4 = _mm_load_si128((const __m128i *) (data + 4*8)); + row5 = _mm_load_si128((const __m128i *) (data + 5*8)); + row6 = _mm_load_si128((const __m128i *) (data + 6*8)); + row7 = _mm_load_si128((const __m128i *) (data + 7*8)); + + // column pass + dct_pass(bias_0, 10); + + { + // 16bit 8x8 transpose pass 1 + dct_interleave16(row0, row4); + dct_interleave16(row1, row5); + dct_interleave16(row2, row6); + dct_interleave16(row3, row7); + + // transpose pass 2 + dct_interleave16(row0, row2); + dct_interleave16(row1, row3); + dct_interleave16(row4, row6); + dct_interleave16(row5, row7); + + // transpose pass 3 + dct_interleave16(row0, row1); + dct_interleave16(row2, row3); + dct_interleave16(row4, row5); + dct_interleave16(row6, row7); + } + + // row pass + dct_pass(bias_1, 17); + + { + // pack + __m128i p0 = _mm_packus_epi16(row0, row1); // a0a1a2a3...a7b0b1b2b3...b7 + __m128i p1 = _mm_packus_epi16(row2, row3); + __m128i p2 = _mm_packus_epi16(row4, row5); + __m128i p3 = _mm_packus_epi16(row6, row7); + + // 8bit 8x8 transpose pass 1 + dct_interleave8(p0, p2); // a0e0a1e1... + dct_interleave8(p1, p3); // c0g0c1g1... + + // transpose pass 2 + dct_interleave8(p0, p1); // a0c0e0g0... + dct_interleave8(p2, p3); // b0d0f0h0... + + // transpose pass 3 + dct_interleave8(p0, p2); // a0b0c0d0... + dct_interleave8(p1, p3); // a4b4c4d4... + + // store + _mm_storel_epi64((__m128i *) out, p0); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p0, 0x4e)); out += out_stride; + _mm_storel_epi64((__m128i *) out, p2); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p2, 0x4e)); out += out_stride; + _mm_storel_epi64((__m128i *) out, p1); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p1, 0x4e)); out += out_stride; + _mm_storel_epi64((__m128i *) out, p3); out += out_stride; + _mm_storel_epi64((__m128i *) out, _mm_shuffle_epi32(p3, 0x4e)); + } + +#undef dct_const +#undef dct_rot +#undef dct_widen +#undef dct_wadd +#undef dct_wsub +#undef dct_bfly32o +#undef dct_interleave8 +#undef dct_interleave16 +#undef dct_pass +} + +#endif // STBI_SSE2 + +#ifdef STBI_NEON + +// NEON integer IDCT. should produce bit-identical +// results to the generic C version. +static void stbi__idct_simd(stbi_uc *out, int out_stride, short data[64]) +{ + int16x8_t row0, row1, row2, row3, row4, row5, row6, row7; + + int16x4_t rot0_0 = vdup_n_s16(stbi__f2f(0.5411961f)); + int16x4_t rot0_1 = vdup_n_s16(stbi__f2f(-1.847759065f)); + int16x4_t rot0_2 = vdup_n_s16(stbi__f2f( 0.765366865f)); + int16x4_t rot1_0 = vdup_n_s16(stbi__f2f( 1.175875602f)); + int16x4_t rot1_1 = vdup_n_s16(stbi__f2f(-0.899976223f)); + int16x4_t rot1_2 = vdup_n_s16(stbi__f2f(-2.562915447f)); + int16x4_t rot2_0 = vdup_n_s16(stbi__f2f(-1.961570560f)); + int16x4_t rot2_1 = vdup_n_s16(stbi__f2f(-0.390180644f)); + int16x4_t rot3_0 = vdup_n_s16(stbi__f2f( 0.298631336f)); + int16x4_t rot3_1 = vdup_n_s16(stbi__f2f( 2.053119869f)); + int16x4_t rot3_2 = vdup_n_s16(stbi__f2f( 3.072711026f)); + int16x4_t rot3_3 = vdup_n_s16(stbi__f2f( 1.501321110f)); + +#define dct_long_mul(out, inq, coeff) \ + int32x4_t out##_l = vmull_s16(vget_low_s16(inq), coeff); \ + int32x4_t out##_h = vmull_s16(vget_high_s16(inq), coeff) + +#define dct_long_mac(out, acc, inq, coeff) \ + int32x4_t out##_l = vmlal_s16(acc##_l, vget_low_s16(inq), coeff); \ + int32x4_t out##_h = vmlal_s16(acc##_h, vget_high_s16(inq), coeff) + +#define dct_widen(out, inq) \ + int32x4_t out##_l = vshll_n_s16(vget_low_s16(inq), 12); \ + int32x4_t out##_h = vshll_n_s16(vget_high_s16(inq), 12) + +// wide add +#define dct_wadd(out, a, b) \ + int32x4_t out##_l = vaddq_s32(a##_l, b##_l); \ + int32x4_t out##_h = vaddq_s32(a##_h, b##_h) + +// wide sub +#define dct_wsub(out, a, b) \ + int32x4_t out##_l = vsubq_s32(a##_l, b##_l); \ + int32x4_t out##_h = vsubq_s32(a##_h, b##_h) + +// butterfly a/b, then shift using "shiftop" by "s" and pack +#define dct_bfly32o(out0,out1, a,b,shiftop,s) \ + { \ + dct_wadd(sum, a, b); \ + dct_wsub(dif, a, b); \ + out0 = vcombine_s16(shiftop(sum_l, s), shiftop(sum_h, s)); \ + out1 = vcombine_s16(shiftop(dif_l, s), shiftop(dif_h, s)); \ + } + +#define dct_pass(shiftop, shift) \ + { \ + /* even part */ \ + int16x8_t sum26 = vaddq_s16(row2, row6); \ + dct_long_mul(p1e, sum26, rot0_0); \ + dct_long_mac(t2e, p1e, row6, rot0_1); \ + dct_long_mac(t3e, p1e, row2, rot0_2); \ + int16x8_t sum04 = vaddq_s16(row0, row4); \ + int16x8_t dif04 = vsubq_s16(row0, row4); \ + dct_widen(t0e, sum04); \ + dct_widen(t1e, dif04); \ + dct_wadd(x0, t0e, t3e); \ + dct_wsub(x3, t0e, t3e); \ + dct_wadd(x1, t1e, t2e); \ + dct_wsub(x2, t1e, t2e); \ + /* odd part */ \ + int16x8_t sum15 = vaddq_s16(row1, row5); \ + int16x8_t sum17 = vaddq_s16(row1, row7); \ + int16x8_t sum35 = vaddq_s16(row3, row5); \ + int16x8_t sum37 = vaddq_s16(row3, row7); \ + int16x8_t sumodd = vaddq_s16(sum17, sum35); \ + dct_long_mul(p5o, sumodd, rot1_0); \ + dct_long_mac(p1o, p5o, sum17, rot1_1); \ + dct_long_mac(p2o, p5o, sum35, rot1_2); \ + dct_long_mul(p3o, sum37, rot2_0); \ + dct_long_mul(p4o, sum15, rot2_1); \ + dct_wadd(sump13o, p1o, p3o); \ + dct_wadd(sump24o, p2o, p4o); \ + dct_wadd(sump23o, p2o, p3o); \ + dct_wadd(sump14o, p1o, p4o); \ + dct_long_mac(x4, sump13o, row7, rot3_0); \ + dct_long_mac(x5, sump24o, row5, rot3_1); \ + dct_long_mac(x6, sump23o, row3, rot3_2); \ + dct_long_mac(x7, sump14o, row1, rot3_3); \ + dct_bfly32o(row0,row7, x0,x7,shiftop,shift); \ + dct_bfly32o(row1,row6, x1,x6,shiftop,shift); \ + dct_bfly32o(row2,row5, x2,x5,shiftop,shift); \ + dct_bfly32o(row3,row4, x3,x4,shiftop,shift); \ + } + + // load + row0 = vld1q_s16(data + 0*8); + row1 = vld1q_s16(data + 1*8); + row2 = vld1q_s16(data + 2*8); + row3 = vld1q_s16(data + 3*8); + row4 = vld1q_s16(data + 4*8); + row5 = vld1q_s16(data + 5*8); + row6 = vld1q_s16(data + 6*8); + row7 = vld1q_s16(data + 7*8); + + // add DC bias + row0 = vaddq_s16(row0, vsetq_lane_s16(1024, vdupq_n_s16(0), 0)); + + // column pass + dct_pass(vrshrn_n_s32, 10); + + // 16bit 8x8 transpose + { +// these three map to a single VTRN.16, VTRN.32, and VSWP, respectively. +// whether compilers actually get this is another story, sadly. +#define dct_trn16(x, y) { int16x8x2_t t = vtrnq_s16(x, y); x = t.val[0]; y = t.val[1]; } +#define dct_trn32(x, y) { int32x4x2_t t = vtrnq_s32(vreinterpretq_s32_s16(x), vreinterpretq_s32_s16(y)); x = vreinterpretq_s16_s32(t.val[0]); y = vreinterpretq_s16_s32(t.val[1]); } +#define dct_trn64(x, y) { int16x8_t x0 = x; int16x8_t y0 = y; x = vcombine_s16(vget_low_s16(x0), vget_low_s16(y0)); y = vcombine_s16(vget_high_s16(x0), vget_high_s16(y0)); } + + // pass 1 + dct_trn16(row0, row1); // a0b0a2b2a4b4a6b6 + dct_trn16(row2, row3); + dct_trn16(row4, row5); + dct_trn16(row6, row7); + + // pass 2 + dct_trn32(row0, row2); // a0b0c0d0a4b4c4d4 + dct_trn32(row1, row3); + dct_trn32(row4, row6); + dct_trn32(row5, row7); + + // pass 3 + dct_trn64(row0, row4); // a0b0c0d0e0f0g0h0 + dct_trn64(row1, row5); + dct_trn64(row2, row6); + dct_trn64(row3, row7); + +#undef dct_trn16 +#undef dct_trn32 +#undef dct_trn64 + } + + // row pass + // vrshrn_n_s32 only supports shifts up to 16, we need + // 17. so do a non-rounding shift of 16 first then follow + // up with a rounding shift by 1. + dct_pass(vshrn_n_s32, 16); + + { + // pack and round + uint8x8_t p0 = vqrshrun_n_s16(row0, 1); + uint8x8_t p1 = vqrshrun_n_s16(row1, 1); + uint8x8_t p2 = vqrshrun_n_s16(row2, 1); + uint8x8_t p3 = vqrshrun_n_s16(row3, 1); + uint8x8_t p4 = vqrshrun_n_s16(row4, 1); + uint8x8_t p5 = vqrshrun_n_s16(row5, 1); + uint8x8_t p6 = vqrshrun_n_s16(row6, 1); + uint8x8_t p7 = vqrshrun_n_s16(row7, 1); + + // again, these can translate into one instruction, but often don't. +#define dct_trn8_8(x, y) { uint8x8x2_t t = vtrn_u8(x, y); x = t.val[0]; y = t.val[1]; } +#define dct_trn8_16(x, y) { uint16x4x2_t t = vtrn_u16(vreinterpret_u16_u8(x), vreinterpret_u16_u8(y)); x = vreinterpret_u8_u16(t.val[0]); y = vreinterpret_u8_u16(t.val[1]); } +#define dct_trn8_32(x, y) { uint32x2x2_t t = vtrn_u32(vreinterpret_u32_u8(x), vreinterpret_u32_u8(y)); x = vreinterpret_u8_u32(t.val[0]); y = vreinterpret_u8_u32(t.val[1]); } + + // sadly can't use interleaved stores here since we only write + // 8 bytes to each scan line! + + // 8x8 8-bit transpose pass 1 + dct_trn8_8(p0, p1); + dct_trn8_8(p2, p3); + dct_trn8_8(p4, p5); + dct_trn8_8(p6, p7); + + // pass 2 + dct_trn8_16(p0, p2); + dct_trn8_16(p1, p3); + dct_trn8_16(p4, p6); + dct_trn8_16(p5, p7); + + // pass 3 + dct_trn8_32(p0, p4); + dct_trn8_32(p1, p5); + dct_trn8_32(p2, p6); + dct_trn8_32(p3, p7); + + // store + vst1_u8(out, p0); out += out_stride; + vst1_u8(out, p1); out += out_stride; + vst1_u8(out, p2); out += out_stride; + vst1_u8(out, p3); out += out_stride; + vst1_u8(out, p4); out += out_stride; + vst1_u8(out, p5); out += out_stride; + vst1_u8(out, p6); out += out_stride; + vst1_u8(out, p7); + +#undef dct_trn8_8 +#undef dct_trn8_16 +#undef dct_trn8_32 + } + +#undef dct_long_mul +#undef dct_long_mac +#undef dct_widen +#undef dct_wadd +#undef dct_wsub +#undef dct_bfly32o +#undef dct_pass +} + +#endif // STBI_NEON + +#define STBI__MARKER_none 0xff +// if there's a pending marker from the entropy stream, return that +// otherwise, fetch from the stream and get a marker. if there's no +// marker, return 0xff, which is never a valid marker value +static stbi_uc stbi__get_marker(stbi__jpeg *j) +{ + stbi_uc x; + if (j->marker != STBI__MARKER_none) { x = j->marker; j->marker = STBI__MARKER_none; return x; } + x = stbi__get8(j->s); + if (x != 0xff) return STBI__MARKER_none; + while (x == 0xff) + x = stbi__get8(j->s); // consume repeated 0xff fill bytes + return x; +} + +// in each scan, we'll have scan_n components, and the order +// of the components is specified by order[] +#define STBI__RESTART(x) ((x) >= 0xd0 && (x) <= 0xd7) + +// after a restart interval, stbi__jpeg_reset the entropy decoder and +// the dc prediction +static void stbi__jpeg_reset(stbi__jpeg *j) +{ + j->code_bits = 0; + j->code_buffer = 0; + j->nomore = 0; + j->img_comp[0].dc_pred = j->img_comp[1].dc_pred = j->img_comp[2].dc_pred = j->img_comp[3].dc_pred = 0; + j->marker = STBI__MARKER_none; + j->todo = j->restart_interval ? j->restart_interval : 0x7fffffff; + j->eob_run = 0; + // no more than 1<<31 MCUs if no restart_interal? that's plenty safe, + // since we don't even allow 1<<30 pixels +} + +static int stbi__parse_entropy_coded_data(stbi__jpeg *z) +{ + stbi__jpeg_reset(z); + if (!z->progressive) { + if (z->scan_n == 1) { + int i,j; + STBI_SIMD_ALIGN(short, data[64]); + int n = z->order[0]; + // non-interleaved data, we just need to process one block at a time, + // in trivial scanline order + // number of blocks to do just depends on how many actual "pixels" this + // component has, independent of interleaved MCU blocking and such + int w = (z->img_comp[n].x+7) >> 3; + int h = (z->img_comp[n].y+7) >> 3; + for (j=0; j < h; ++j) { + for (i=0; i < w; ++i) { + int ha = z->img_comp[n].ha; + if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0; + z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data); + // every data block is an MCU, so countdown the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + // if it's NOT a restart, then just bail, so we get corrupt data + // rather than no data + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } else { // interleaved + int i,j,k,x,y; + STBI_SIMD_ALIGN(short, data[64]); + for (j=0; j < z->img_mcu_y; ++j) { + for (i=0; i < z->img_mcu_x; ++i) { + // scan an interleaved mcu... process scan_n components in order + for (k=0; k < z->scan_n; ++k) { + int n = z->order[k]; + // scan out an mcu's worth of this component; that's just determined + // by the basic H and V specified for the component + for (y=0; y < z->img_comp[n].v; ++y) { + for (x=0; x < z->img_comp[n].h; ++x) { + int x2 = (i*z->img_comp[n].h + x)*8; + int y2 = (j*z->img_comp[n].v + y)*8; + int ha = z->img_comp[n].ha; + if (!stbi__jpeg_decode_block(z, data, z->huff_dc+z->img_comp[n].hd, z->huff_ac+ha, z->fast_ac[ha], n, z->dequant[z->img_comp[n].tq])) return 0; + z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*y2+x2, z->img_comp[n].w2, data); + } + } + } + // after all interleaved components, that's an interleaved MCU, + // so now count down the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } + } else { + if (z->scan_n == 1) { + int i,j; + int n = z->order[0]; + // non-interleaved data, we just need to process one block at a time, + // in trivial scanline order + // number of blocks to do just depends on how many actual "pixels" this + // component has, independent of interleaved MCU blocking and such + int w = (z->img_comp[n].x+7) >> 3; + int h = (z->img_comp[n].y+7) >> 3; + for (j=0; j < h; ++j) { + for (i=0; i < w; ++i) { + short *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w); + if (z->spec_start == 0) { + if (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n)) + return 0; + } else { + int ha = z->img_comp[n].ha; + if (!stbi__jpeg_decode_block_prog_ac(z, data, &z->huff_ac[ha], z->fast_ac[ha])) + return 0; + } + // every data block is an MCU, so countdown the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } else { // interleaved + int i,j,k,x,y; + for (j=0; j < z->img_mcu_y; ++j) { + for (i=0; i < z->img_mcu_x; ++i) { + // scan an interleaved mcu... process scan_n components in order + for (k=0; k < z->scan_n; ++k) { + int n = z->order[k]; + // scan out an mcu's worth of this component; that's just determined + // by the basic H and V specified for the component + for (y=0; y < z->img_comp[n].v; ++y) { + for (x=0; x < z->img_comp[n].h; ++x) { + int x2 = (i*z->img_comp[n].h + x); + int y2 = (j*z->img_comp[n].v + y); + short *data = z->img_comp[n].coeff + 64 * (x2 + y2 * z->img_comp[n].coeff_w); + if (!stbi__jpeg_decode_block_prog_dc(z, data, &z->huff_dc[z->img_comp[n].hd], n)) + return 0; + } + } + } + // after all interleaved components, that's an interleaved MCU, + // so now count down the restart interval + if (--z->todo <= 0) { + if (z->code_bits < 24) stbi__grow_buffer_unsafe(z); + if (!STBI__RESTART(z->marker)) return 1; + stbi__jpeg_reset(z); + } + } + } + return 1; + } + } +} + +static void stbi__jpeg_dequantize(short *data, stbi__uint16 *dequant) +{ + int i; + for (i=0; i < 64; ++i) + data[i] *= dequant[i]; +} + +static void stbi__jpeg_finish(stbi__jpeg *z) +{ + if (z->progressive) { + // dequantize and idct the data + int i,j,n; + for (n=0; n < z->s->img_n; ++n) { + int w = (z->img_comp[n].x+7) >> 3; + int h = (z->img_comp[n].y+7) >> 3; + for (j=0; j < h; ++j) { + for (i=0; i < w; ++i) { + short *data = z->img_comp[n].coeff + 64 * (i + j * z->img_comp[n].coeff_w); + stbi__jpeg_dequantize(data, z->dequant[z->img_comp[n].tq]); + z->idct_block_kernel(z->img_comp[n].data+z->img_comp[n].w2*j*8+i*8, z->img_comp[n].w2, data); + } + } + } + } +} + +static int stbi__process_marker(stbi__jpeg *z, int m) +{ + int L; + switch (m) { + case STBI__MARKER_none: // no marker found + return stbi__err("expected marker","Corrupt JPEG"); + + case 0xDD: // DRI - specify restart interval + if (stbi__get16be(z->s) != 4) return stbi__err("bad DRI len","Corrupt JPEG"); + z->restart_interval = stbi__get16be(z->s); + return 1; + + case 0xDB: // DQT - define quantization table + L = stbi__get16be(z->s)-2; + while (L > 0) { + int q = stbi__get8(z->s); + int p = q >> 4, sixteen = (p != 0); + int t = q & 15,i; + if (p != 0 && p != 1) return stbi__err("bad DQT type","Corrupt JPEG"); + if (t > 3) return stbi__err("bad DQT table","Corrupt JPEG"); + + for (i=0; i < 64; ++i) + z->dequant[t][stbi__jpeg_dezigzag[i]] = (stbi__uint16)(sixteen ? stbi__get16be(z->s) : stbi__get8(z->s)); + L -= (sixteen ? 129 : 65); + } + return L==0; + + case 0xC4: // DHT - define huffman table + L = stbi__get16be(z->s)-2; + while (L > 0) { + stbi_uc *v; + int sizes[16],i,n=0; + int q = stbi__get8(z->s); + int tc = q >> 4; + int th = q & 15; + if (tc > 1 || th > 3) return stbi__err("bad DHT header","Corrupt JPEG"); + for (i=0; i < 16; ++i) { + sizes[i] = stbi__get8(z->s); + n += sizes[i]; + } + L -= 17; + if (tc == 0) { + if (!stbi__build_huffman(z->huff_dc+th, sizes)) return 0; + v = z->huff_dc[th].values; + } else { + if (!stbi__build_huffman(z->huff_ac+th, sizes)) return 0; + v = z->huff_ac[th].values; + } + for (i=0; i < n; ++i) + v[i] = stbi__get8(z->s); + if (tc != 0) + stbi__build_fast_ac(z->fast_ac[th], z->huff_ac + th); + L -= n; + } + return L==0; + } + + // check for comment block or APP blocks + if ((m >= 0xE0 && m <= 0xEF) || m == 0xFE) { + L = stbi__get16be(z->s); + if (L < 2) { + if (m == 0xFE) + return stbi__err("bad COM len","Corrupt JPEG"); + else + return stbi__err("bad APP len","Corrupt JPEG"); + } + L -= 2; + + if (m == 0xE0 && L >= 5) { // JFIF APP0 segment + static const unsigned char tag[5] = {'J','F','I','F','\0'}; + int ok = 1; + int i; + for (i=0; i < 5; ++i) + if (stbi__get8(z->s) != tag[i]) + ok = 0; + L -= 5; + if (ok) + z->jfif = 1; + } else if (m == 0xEE && L >= 12) { // Adobe APP14 segment + static const unsigned char tag[6] = {'A','d','o','b','e','\0'}; + int ok = 1; + int i; + for (i=0; i < 6; ++i) + if (stbi__get8(z->s) != tag[i]) + ok = 0; + L -= 6; + if (ok) { + stbi__get8(z->s); // version + stbi__get16be(z->s); // flags0 + stbi__get16be(z->s); // flags1 + z->app14_color_transform = stbi__get8(z->s); // color transform + L -= 6; + } + } + + stbi__skip(z->s, L); + return 1; + } + + return stbi__err("unknown marker","Corrupt JPEG"); +} + +// after we see SOS +static int stbi__process_scan_header(stbi__jpeg *z) +{ + int i; + int Ls = stbi__get16be(z->s); + z->scan_n = stbi__get8(z->s); + if (z->scan_n < 1 || z->scan_n > 4 || z->scan_n > (int) z->s->img_n) return stbi__err("bad SOS component count","Corrupt JPEG"); + if (Ls != 6+2*z->scan_n) return stbi__err("bad SOS len","Corrupt JPEG"); + for (i=0; i < z->scan_n; ++i) { + int id = stbi__get8(z->s), which; + int q = stbi__get8(z->s); + for (which = 0; which < z->s->img_n; ++which) + if (z->img_comp[which].id == id) + break; + if (which == z->s->img_n) return 0; // no match + z->img_comp[which].hd = q >> 4; if (z->img_comp[which].hd > 3) return stbi__err("bad DC huff","Corrupt JPEG"); + z->img_comp[which].ha = q & 15; if (z->img_comp[which].ha > 3) return stbi__err("bad AC huff","Corrupt JPEG"); + z->order[i] = which; + } + + { + int aa; + z->spec_start = stbi__get8(z->s); + z->spec_end = stbi__get8(z->s); // should be 63, but might be 0 + aa = stbi__get8(z->s); + z->succ_high = (aa >> 4); + z->succ_low = (aa & 15); + if (z->progressive) { + if (z->spec_start > 63 || z->spec_end > 63 || z->spec_start > z->spec_end || z->succ_high > 13 || z->succ_low > 13) + return stbi__err("bad SOS", "Corrupt JPEG"); + } else { + if (z->spec_start != 0) return stbi__err("bad SOS","Corrupt JPEG"); + if (z->succ_high != 0 || z->succ_low != 0) return stbi__err("bad SOS","Corrupt JPEG"); + z->spec_end = 63; + } + } + + return 1; +} + +static int stbi__free_jpeg_components(stbi__jpeg *z, int ncomp, int why) +{ + int i; + for (i=0; i < ncomp; ++i) { + if (z->img_comp[i].raw_data) { + STBI_FREE(z->img_comp[i].raw_data); + z->img_comp[i].raw_data = NULL; + z->img_comp[i].data = NULL; + } + if (z->img_comp[i].raw_coeff) { + STBI_FREE(z->img_comp[i].raw_coeff); + z->img_comp[i].raw_coeff = 0; + z->img_comp[i].coeff = 0; + } + if (z->img_comp[i].linebuf) { + STBI_FREE(z->img_comp[i].linebuf); + z->img_comp[i].linebuf = NULL; + } + } + return why; +} + +static int stbi__process_frame_header(stbi__jpeg *z, int scan) +{ + stbi__context *s = z->s; + int Lf,p,i,q, h_max=1,v_max=1,c; + Lf = stbi__get16be(s); if (Lf < 11) return stbi__err("bad SOF len","Corrupt JPEG"); // JPEG + p = stbi__get8(s); if (p != 8) return stbi__err("only 8-bit","JPEG format not supported: 8-bit only"); // JPEG baseline + s->img_y = stbi__get16be(s); if (s->img_y == 0) return stbi__err("no header height", "JPEG format not supported: delayed height"); // Legal, but we don't handle it--but neither does IJG + s->img_x = stbi__get16be(s); if (s->img_x == 0) return stbi__err("0 width","Corrupt JPEG"); // JPEG requires + if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + c = stbi__get8(s); + if (c != 3 && c != 1 && c != 4) return stbi__err("bad component count","Corrupt JPEG"); + s->img_n = c; + for (i=0; i < c; ++i) { + z->img_comp[i].data = NULL; + z->img_comp[i].linebuf = NULL; + } + + if (Lf != 8+3*s->img_n) return stbi__err("bad SOF len","Corrupt JPEG"); + + z->rgb = 0; + for (i=0; i < s->img_n; ++i) { + static const unsigned char rgb[3] = { 'R', 'G', 'B' }; + z->img_comp[i].id = stbi__get8(s); + if (s->img_n == 3 && z->img_comp[i].id == rgb[i]) + ++z->rgb; + q = stbi__get8(s); + z->img_comp[i].h = (q >> 4); if (!z->img_comp[i].h || z->img_comp[i].h > 4) return stbi__err("bad H","Corrupt JPEG"); + z->img_comp[i].v = q & 15; if (!z->img_comp[i].v || z->img_comp[i].v > 4) return stbi__err("bad V","Corrupt JPEG"); + z->img_comp[i].tq = stbi__get8(s); if (z->img_comp[i].tq > 3) return stbi__err("bad TQ","Corrupt JPEG"); + } + + if (scan != STBI__SCAN_load) return 1; + + if (!stbi__mad3sizes_valid(s->img_x, s->img_y, s->img_n, 0)) return stbi__err("too large", "Image too large to decode"); + + for (i=0; i < s->img_n; ++i) { + if (z->img_comp[i].h > h_max) h_max = z->img_comp[i].h; + if (z->img_comp[i].v > v_max) v_max = z->img_comp[i].v; + } + + // compute interleaved mcu info + z->img_h_max = h_max; + z->img_v_max = v_max; + z->img_mcu_w = h_max * 8; + z->img_mcu_h = v_max * 8; + // these sizes can't be more than 17 bits + z->img_mcu_x = (s->img_x + z->img_mcu_w-1) / z->img_mcu_w; + z->img_mcu_y = (s->img_y + z->img_mcu_h-1) / z->img_mcu_h; + + for (i=0; i < s->img_n; ++i) { + // number of effective pixels (e.g. for non-interleaved MCU) + z->img_comp[i].x = (s->img_x * z->img_comp[i].h + h_max-1) / h_max; + z->img_comp[i].y = (s->img_y * z->img_comp[i].v + v_max-1) / v_max; + // to simplify generation, we'll allocate enough memory to decode + // the bogus oversized data from using interleaved MCUs and their + // big blocks (e.g. a 16x16 iMCU on an image of width 33); we won't + // discard the extra data until colorspace conversion + // + // img_mcu_x, img_mcu_y: <=17 bits; comp[i].h and .v are <=4 (checked earlier) + // so these muls can't overflow with 32-bit ints (which we require) + z->img_comp[i].w2 = z->img_mcu_x * z->img_comp[i].h * 8; + z->img_comp[i].h2 = z->img_mcu_y * z->img_comp[i].v * 8; + z->img_comp[i].coeff = 0; + z->img_comp[i].raw_coeff = 0; + z->img_comp[i].linebuf = NULL; + z->img_comp[i].raw_data = stbi__malloc_mad2(z->img_comp[i].w2, z->img_comp[i].h2, 15); + if (z->img_comp[i].raw_data == NULL) + return stbi__free_jpeg_components(z, i+1, stbi__err("outofmem", "Out of memory")); + // align blocks for idct using mmx/sse + z->img_comp[i].data = (stbi_uc*) (((size_t) z->img_comp[i].raw_data + 15) & ~15); + if (z->progressive) { + // w2, h2 are multiples of 8 (see above) + z->img_comp[i].coeff_w = z->img_comp[i].w2 / 8; + z->img_comp[i].coeff_h = z->img_comp[i].h2 / 8; + z->img_comp[i].raw_coeff = stbi__malloc_mad3(z->img_comp[i].w2, z->img_comp[i].h2, sizeof(short), 15); + if (z->img_comp[i].raw_coeff == NULL) + return stbi__free_jpeg_components(z, i+1, stbi__err("outofmem", "Out of memory")); + z->img_comp[i].coeff = (short*) (((size_t) z->img_comp[i].raw_coeff + 15) & ~15); + } + } + + return 1; +} + +// use comparisons since in some cases we handle more than one case (e.g. SOF) +#define stbi__DNL(x) ((x) == 0xdc) +#define stbi__SOI(x) ((x) == 0xd8) +#define stbi__EOI(x) ((x) == 0xd9) +#define stbi__SOF(x) ((x) == 0xc0 || (x) == 0xc1 || (x) == 0xc2) +#define stbi__SOS(x) ((x) == 0xda) + +#define stbi__SOF_progressive(x) ((x) == 0xc2) + +static int stbi__decode_jpeg_header(stbi__jpeg *z, int scan) +{ + int m; + z->jfif = 0; + z->app14_color_transform = -1; // valid values are 0,1,2 + z->marker = STBI__MARKER_none; // initialize cached marker to empty + m = stbi__get_marker(z); + if (!stbi__SOI(m)) return stbi__err("no SOI","Corrupt JPEG"); + if (scan == STBI__SCAN_type) return 1; + m = stbi__get_marker(z); + while (!stbi__SOF(m)) { + if (!stbi__process_marker(z,m)) return 0; + m = stbi__get_marker(z); + while (m == STBI__MARKER_none) { + // some files have extra padding after their blocks, so ok, we'll scan + if (stbi__at_eof(z->s)) return stbi__err("no SOF", "Corrupt JPEG"); + m = stbi__get_marker(z); + } + } + z->progressive = stbi__SOF_progressive(m); + if (!stbi__process_frame_header(z, scan)) return 0; + return 1; +} + +// decode image to YCbCr format +static int stbi__decode_jpeg_image(stbi__jpeg *j) +{ + int m; + for (m = 0; m < 4; m++) { + j->img_comp[m].raw_data = NULL; + j->img_comp[m].raw_coeff = NULL; + } + j->restart_interval = 0; + if (!stbi__decode_jpeg_header(j, STBI__SCAN_load)) return 0; + m = stbi__get_marker(j); + while (!stbi__EOI(m)) { + if (stbi__SOS(m)) { + if (!stbi__process_scan_header(j)) return 0; + if (!stbi__parse_entropy_coded_data(j)) return 0; + if (j->marker == STBI__MARKER_none ) { + // handle 0s at the end of image data from IP Kamera 9060 + while (!stbi__at_eof(j->s)) { + int x = stbi__get8(j->s); + if (x == 255) { + j->marker = stbi__get8(j->s); + break; + } + } + // if we reach eof without hitting a marker, stbi__get_marker() below will fail and we'll eventually return 0 + } + } else if (stbi__DNL(m)) { + int Ld = stbi__get16be(j->s); + stbi__uint32 NL = stbi__get16be(j->s); + if (Ld != 4) return stbi__err("bad DNL len", "Corrupt JPEG"); + if (NL != j->s->img_y) return stbi__err("bad DNL height", "Corrupt JPEG"); + } else { + if (!stbi__process_marker(j, m)) return 0; + } + m = stbi__get_marker(j); + } + if (j->progressive) + stbi__jpeg_finish(j); + return 1; +} + +// static jfif-centered resampling (across block boundaries) + +typedef stbi_uc *(*resample_row_func)(stbi_uc *out, stbi_uc *in0, stbi_uc *in1, + int w, int hs); + +#define stbi__div4(x) ((stbi_uc) ((x) >> 2)) + +static stbi_uc *resample_row_1(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + STBI_NOTUSED(out); + STBI_NOTUSED(in_far); + STBI_NOTUSED(w); + STBI_NOTUSED(hs); + return in_near; +} + +static stbi_uc* stbi__resample_row_v_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate two samples vertically for every one in input + int i; + STBI_NOTUSED(hs); + for (i=0; i < w; ++i) + out[i] = stbi__div4(3*in_near[i] + in_far[i] + 2); + return out; +} + +static stbi_uc* stbi__resample_row_h_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate two samples horizontally for every one in input + int i; + stbi_uc *input = in_near; + + if (w == 1) { + // if only one sample, can't do any interpolation + out[0] = out[1] = input[0]; + return out; + } + + out[0] = input[0]; + out[1] = stbi__div4(input[0]*3 + input[1] + 2); + for (i=1; i < w-1; ++i) { + int n = 3*input[i]+2; + out[i*2+0] = stbi__div4(n+input[i-1]); + out[i*2+1] = stbi__div4(n+input[i+1]); + } + out[i*2+0] = stbi__div4(input[w-2]*3 + input[w-1] + 2); + out[i*2+1] = input[w-1]; + + STBI_NOTUSED(in_far); + STBI_NOTUSED(hs); + + return out; +} + +#define stbi__div16(x) ((stbi_uc) ((x) >> 4)) + +static stbi_uc *stbi__resample_row_hv_2(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate 2x2 samples for every one in input + int i,t0,t1; + if (w == 1) { + out[0] = out[1] = stbi__div4(3*in_near[0] + in_far[0] + 2); + return out; + } + + t1 = 3*in_near[0] + in_far[0]; + out[0] = stbi__div4(t1+2); + for (i=1; i < w; ++i) { + t0 = t1; + t1 = 3*in_near[i]+in_far[i]; + out[i*2-1] = stbi__div16(3*t0 + t1 + 8); + out[i*2 ] = stbi__div16(3*t1 + t0 + 8); + } + out[w*2-1] = stbi__div4(t1+2); + + STBI_NOTUSED(hs); + + return out; +} + +#if defined(STBI_SSE2) || defined(STBI_NEON) +static stbi_uc *stbi__resample_row_hv_2_simd(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // need to generate 2x2 samples for every one in input + int i=0,t0,t1; + + if (w == 1) { + out[0] = out[1] = stbi__div4(3*in_near[0] + in_far[0] + 2); + return out; + } + + t1 = 3*in_near[0] + in_far[0]; + // process groups of 8 pixels for as long as we can. + // note we can't handle the last pixel in a row in this loop + // because we need to handle the filter boundary conditions. + for (; i < ((w-1) & ~7); i += 8) { +#if defined(STBI_SSE2) + // load and perform the vertical filtering pass + // this uses 3*x + y = 4*x + (y - x) + __m128i zero = _mm_setzero_si128(); + __m128i farb = _mm_loadl_epi64((__m128i *) (in_far + i)); + __m128i nearb = _mm_loadl_epi64((__m128i *) (in_near + i)); + __m128i farw = _mm_unpacklo_epi8(farb, zero); + __m128i nearw = _mm_unpacklo_epi8(nearb, zero); + __m128i diff = _mm_sub_epi16(farw, nearw); + __m128i nears = _mm_slli_epi16(nearw, 2); + __m128i curr = _mm_add_epi16(nears, diff); // current row + + // horizontal filter works the same based on shifted vers of current + // row. "prev" is current row shifted right by 1 pixel; we need to + // insert the previous pixel value (from t1). + // "next" is current row shifted left by 1 pixel, with first pixel + // of next block of 8 pixels added in. + __m128i prv0 = _mm_slli_si128(curr, 2); + __m128i nxt0 = _mm_srli_si128(curr, 2); + __m128i prev = _mm_insert_epi16(prv0, t1, 0); + __m128i next = _mm_insert_epi16(nxt0, 3*in_near[i+8] + in_far[i+8], 7); + + // horizontal filter, polyphase implementation since it's convenient: + // even pixels = 3*cur + prev = cur*4 + (prev - cur) + // odd pixels = 3*cur + next = cur*4 + (next - cur) + // note the shared term. + __m128i bias = _mm_set1_epi16(8); + __m128i curs = _mm_slli_epi16(curr, 2); + __m128i prvd = _mm_sub_epi16(prev, curr); + __m128i nxtd = _mm_sub_epi16(next, curr); + __m128i curb = _mm_add_epi16(curs, bias); + __m128i even = _mm_add_epi16(prvd, curb); + __m128i odd = _mm_add_epi16(nxtd, curb); + + // interleave even and odd pixels, then undo scaling. + __m128i int0 = _mm_unpacklo_epi16(even, odd); + __m128i int1 = _mm_unpackhi_epi16(even, odd); + __m128i de0 = _mm_srli_epi16(int0, 4); + __m128i de1 = _mm_srli_epi16(int1, 4); + + // pack and write output + __m128i outv = _mm_packus_epi16(de0, de1); + _mm_storeu_si128((__m128i *) (out + i*2), outv); +#elif defined(STBI_NEON) + // load and perform the vertical filtering pass + // this uses 3*x + y = 4*x + (y - x) + uint8x8_t farb = vld1_u8(in_far + i); + uint8x8_t nearb = vld1_u8(in_near + i); + int16x8_t diff = vreinterpretq_s16_u16(vsubl_u8(farb, nearb)); + int16x8_t nears = vreinterpretq_s16_u16(vshll_n_u8(nearb, 2)); + int16x8_t curr = vaddq_s16(nears, diff); // current row + + // horizontal filter works the same based on shifted vers of current + // row. "prev" is current row shifted right by 1 pixel; we need to + // insert the previous pixel value (from t1). + // "next" is current row shifted left by 1 pixel, with first pixel + // of next block of 8 pixels added in. + int16x8_t prv0 = vextq_s16(curr, curr, 7); + int16x8_t nxt0 = vextq_s16(curr, curr, 1); + int16x8_t prev = vsetq_lane_s16(t1, prv0, 0); + int16x8_t next = vsetq_lane_s16(3*in_near[i+8] + in_far[i+8], nxt0, 7); + + // horizontal filter, polyphase implementation since it's convenient: + // even pixels = 3*cur + prev = cur*4 + (prev - cur) + // odd pixels = 3*cur + next = cur*4 + (next - cur) + // note the shared term. + int16x8_t curs = vshlq_n_s16(curr, 2); + int16x8_t prvd = vsubq_s16(prev, curr); + int16x8_t nxtd = vsubq_s16(next, curr); + int16x8_t even = vaddq_s16(curs, prvd); + int16x8_t odd = vaddq_s16(curs, nxtd); + + // undo scaling and round, then store with even/odd phases interleaved + uint8x8x2_t o; + o.val[0] = vqrshrun_n_s16(even, 4); + o.val[1] = vqrshrun_n_s16(odd, 4); + vst2_u8(out + i*2, o); +#endif + + // "previous" value for next iter + t1 = 3*in_near[i+7] + in_far[i+7]; + } + + t0 = t1; + t1 = 3*in_near[i] + in_far[i]; + out[i*2] = stbi__div16(3*t1 + t0 + 8); + + for (++i; i < w; ++i) { + t0 = t1; + t1 = 3*in_near[i]+in_far[i]; + out[i*2-1] = stbi__div16(3*t0 + t1 + 8); + out[i*2 ] = stbi__div16(3*t1 + t0 + 8); + } + out[w*2-1] = stbi__div4(t1+2); + + STBI_NOTUSED(hs); + + return out; +} +#endif + +static stbi_uc *stbi__resample_row_generic(stbi_uc *out, stbi_uc *in_near, stbi_uc *in_far, int w, int hs) +{ + // resample with nearest-neighbor + int i,j; + STBI_NOTUSED(in_far); + for (i=0; i < w; ++i) + for (j=0; j < hs; ++j) + out[i*hs+j] = in_near[i]; + return out; +} + +// this is a reduced-precision calculation of YCbCr-to-RGB introduced +// to make sure the code produces the same results in both SIMD and scalar +#define stbi__float2fixed(x) (((int) ((x) * 4096.0f + 0.5f)) << 8) +static void stbi__YCbCr_to_RGB_row(stbi_uc *out, const stbi_uc *y, const stbi_uc *pcb, const stbi_uc *pcr, int count, int step) +{ + int i; + for (i=0; i < count; ++i) { + int y_fixed = (y[i] << 20) + (1<<19); // rounding + int r,g,b; + int cr = pcr[i] - 128; + int cb = pcb[i] - 128; + r = y_fixed + cr* stbi__float2fixed(1.40200f); + g = y_fixed + (cr*-stbi__float2fixed(0.71414f)) + ((cb*-stbi__float2fixed(0.34414f)) & 0xffff0000); + b = y_fixed + cb* stbi__float2fixed(1.77200f); + r >>= 20; + g >>= 20; + b >>= 20; + if ((unsigned) r > 255) { if (r < 0) r = 0; else r = 255; } + if ((unsigned) g > 255) { if (g < 0) g = 0; else g = 255; } + if ((unsigned) b > 255) { if (b < 0) b = 0; else b = 255; } + out[0] = (stbi_uc)r; + out[1] = (stbi_uc)g; + out[2] = (stbi_uc)b; + out[3] = 255; + out += step; + } +} + +#if defined(STBI_SSE2) || defined(STBI_NEON) +static void stbi__YCbCr_to_RGB_simd(stbi_uc *out, stbi_uc const *y, stbi_uc const *pcb, stbi_uc const *pcr, int count, int step) +{ + int i = 0; + +#ifdef STBI_SSE2 + // step == 3 is pretty ugly on the final interleave, and i'm not convinced + // it's useful in practice (you wouldn't use it for textures, for example). + // so just accelerate step == 4 case. + if (step == 4) { + // this is a fairly straightforward implementation and not super-optimized. + __m128i signflip = _mm_set1_epi8(-0x80); + __m128i cr_const0 = _mm_set1_epi16( (short) ( 1.40200f*4096.0f+0.5f)); + __m128i cr_const1 = _mm_set1_epi16( - (short) ( 0.71414f*4096.0f+0.5f)); + __m128i cb_const0 = _mm_set1_epi16( - (short) ( 0.34414f*4096.0f+0.5f)); + __m128i cb_const1 = _mm_set1_epi16( (short) ( 1.77200f*4096.0f+0.5f)); + __m128i y_bias = _mm_set1_epi8((char) (unsigned char) 128); + __m128i xw = _mm_set1_epi16(255); // alpha channel + + for (; i+7 < count; i += 8) { + // load + __m128i y_bytes = _mm_loadl_epi64((__m128i *) (y+i)); + __m128i cr_bytes = _mm_loadl_epi64((__m128i *) (pcr+i)); + __m128i cb_bytes = _mm_loadl_epi64((__m128i *) (pcb+i)); + __m128i cr_biased = _mm_xor_si128(cr_bytes, signflip); // -128 + __m128i cb_biased = _mm_xor_si128(cb_bytes, signflip); // -128 + + // unpack to short (and left-shift cr, cb by 8) + __m128i yw = _mm_unpacklo_epi8(y_bias, y_bytes); + __m128i crw = _mm_unpacklo_epi8(_mm_setzero_si128(), cr_biased); + __m128i cbw = _mm_unpacklo_epi8(_mm_setzero_si128(), cb_biased); + + // color transform + __m128i yws = _mm_srli_epi16(yw, 4); + __m128i cr0 = _mm_mulhi_epi16(cr_const0, crw); + __m128i cb0 = _mm_mulhi_epi16(cb_const0, cbw); + __m128i cb1 = _mm_mulhi_epi16(cbw, cb_const1); + __m128i cr1 = _mm_mulhi_epi16(crw, cr_const1); + __m128i rws = _mm_add_epi16(cr0, yws); + __m128i gwt = _mm_add_epi16(cb0, yws); + __m128i bws = _mm_add_epi16(yws, cb1); + __m128i gws = _mm_add_epi16(gwt, cr1); + + // descale + __m128i rw = _mm_srai_epi16(rws, 4); + __m128i bw = _mm_srai_epi16(bws, 4); + __m128i gw = _mm_srai_epi16(gws, 4); + + // back to byte, set up for transpose + __m128i brb = _mm_packus_epi16(rw, bw); + __m128i gxb = _mm_packus_epi16(gw, xw); + + // transpose to interleave channels + __m128i t0 = _mm_unpacklo_epi8(brb, gxb); + __m128i t1 = _mm_unpackhi_epi8(brb, gxb); + __m128i o0 = _mm_unpacklo_epi16(t0, t1); + __m128i o1 = _mm_unpackhi_epi16(t0, t1); + + // store + _mm_storeu_si128((__m128i *) (out + 0), o0); + _mm_storeu_si128((__m128i *) (out + 16), o1); + out += 32; + } + } +#endif + +#ifdef STBI_NEON + // in this version, step=3 support would be easy to add. but is there demand? + if (step == 4) { + // this is a fairly straightforward implementation and not super-optimized. + uint8x8_t signflip = vdup_n_u8(0x80); + int16x8_t cr_const0 = vdupq_n_s16( (short) ( 1.40200f*4096.0f+0.5f)); + int16x8_t cr_const1 = vdupq_n_s16( - (short) ( 0.71414f*4096.0f+0.5f)); + int16x8_t cb_const0 = vdupq_n_s16( - (short) ( 0.34414f*4096.0f+0.5f)); + int16x8_t cb_const1 = vdupq_n_s16( (short) ( 1.77200f*4096.0f+0.5f)); + + for (; i+7 < count; i += 8) { + // load + uint8x8_t y_bytes = vld1_u8(y + i); + uint8x8_t cr_bytes = vld1_u8(pcr + i); + uint8x8_t cb_bytes = vld1_u8(pcb + i); + int8x8_t cr_biased = vreinterpret_s8_u8(vsub_u8(cr_bytes, signflip)); + int8x8_t cb_biased = vreinterpret_s8_u8(vsub_u8(cb_bytes, signflip)); + + // expand to s16 + int16x8_t yws = vreinterpretq_s16_u16(vshll_n_u8(y_bytes, 4)); + int16x8_t crw = vshll_n_s8(cr_biased, 7); + int16x8_t cbw = vshll_n_s8(cb_biased, 7); + + // color transform + int16x8_t cr0 = vqdmulhq_s16(crw, cr_const0); + int16x8_t cb0 = vqdmulhq_s16(cbw, cb_const0); + int16x8_t cr1 = vqdmulhq_s16(crw, cr_const1); + int16x8_t cb1 = vqdmulhq_s16(cbw, cb_const1); + int16x8_t rws = vaddq_s16(yws, cr0); + int16x8_t gws = vaddq_s16(vaddq_s16(yws, cb0), cr1); + int16x8_t bws = vaddq_s16(yws, cb1); + + // undo scaling, round, convert to byte + uint8x8x4_t o; + o.val[0] = vqrshrun_n_s16(rws, 4); + o.val[1] = vqrshrun_n_s16(gws, 4); + o.val[2] = vqrshrun_n_s16(bws, 4); + o.val[3] = vdup_n_u8(255); + + // store, interleaving r/g/b/a + vst4_u8(out, o); + out += 8*4; + } + } +#endif + + for (; i < count; ++i) { + int y_fixed = (y[i] << 20) + (1<<19); // rounding + int r,g,b; + int cr = pcr[i] - 128; + int cb = pcb[i] - 128; + r = y_fixed + cr* stbi__float2fixed(1.40200f); + g = y_fixed + cr*-stbi__float2fixed(0.71414f) + ((cb*-stbi__float2fixed(0.34414f)) & 0xffff0000); + b = y_fixed + cb* stbi__float2fixed(1.77200f); + r >>= 20; + g >>= 20; + b >>= 20; + if ((unsigned) r > 255) { if (r < 0) r = 0; else r = 255; } + if ((unsigned) g > 255) { if (g < 0) g = 0; else g = 255; } + if ((unsigned) b > 255) { if (b < 0) b = 0; else b = 255; } + out[0] = (stbi_uc)r; + out[1] = (stbi_uc)g; + out[2] = (stbi_uc)b; + out[3] = 255; + out += step; + } +} +#endif + +// set up the kernels +static void stbi__setup_jpeg(stbi__jpeg *j) +{ + j->idct_block_kernel = stbi__idct_block; + j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_row; + j->resample_row_hv_2_kernel = stbi__resample_row_hv_2; + +#ifdef STBI_SSE2 + if (stbi__sse2_available()) { + j->idct_block_kernel = stbi__idct_simd; + j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd; + j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd; + } +#endif + +#ifdef STBI_NEON + j->idct_block_kernel = stbi__idct_simd; + j->YCbCr_to_RGB_kernel = stbi__YCbCr_to_RGB_simd; + j->resample_row_hv_2_kernel = stbi__resample_row_hv_2_simd; +#endif +} + +// clean up the temporary component buffers +static void stbi__cleanup_jpeg(stbi__jpeg *j) +{ + stbi__free_jpeg_components(j, j->s->img_n, 0); +} + +typedef struct +{ + resample_row_func resample; + stbi_uc *line0,*line1; + int hs,vs; // expansion factor in each axis + int w_lores; // horizontal pixels pre-expansion + int ystep; // how far through vertical expansion we are + int ypos; // which pre-expansion row we're on +} stbi__resample; + +// fast 0..255 * 0..255 => 0..255 rounded multiplication +static stbi_uc stbi__blinn_8x8(stbi_uc x, stbi_uc y) +{ + unsigned int t = x*y + 128; + return (stbi_uc) ((t + (t >>8)) >> 8); +} + +static stbi_uc *load_jpeg_image(stbi__jpeg *z, int *out_x, int *out_y, int *comp, int req_comp) +{ + int n, decode_n, is_rgb; + z->s->img_n = 0; // make stbi__cleanup_jpeg safe + + // validate req_comp + if (req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error"); + + // load a jpeg image from whichever source, but leave in YCbCr format + if (!stbi__decode_jpeg_image(z)) { stbi__cleanup_jpeg(z); return NULL; } + + // determine actual number of components to generate + n = req_comp ? req_comp : z->s->img_n >= 3 ? 3 : 1; + + is_rgb = z->s->img_n == 3 && (z->rgb == 3 || (z->app14_color_transform == 0 && !z->jfif)); + + if (z->s->img_n == 3 && n < 3 && !is_rgb) + decode_n = 1; + else + decode_n = z->s->img_n; + + // resample and color-convert + { + int k; + unsigned int i,j; + stbi_uc *output; + stbi_uc *coutput[4] = { NULL, NULL, NULL, NULL }; + + stbi__resample res_comp[4]; + + for (k=0; k < decode_n; ++k) { + stbi__resample *r = &res_comp[k]; + + // allocate line buffer big enough for upsampling off the edges + // with upsample factor of 4 + z->img_comp[k].linebuf = (stbi_uc *) stbi__malloc(z->s->img_x + 3); + if (!z->img_comp[k].linebuf) { stbi__cleanup_jpeg(z); return stbi__errpuc("outofmem", "Out of memory"); } + + r->hs = z->img_h_max / z->img_comp[k].h; + r->vs = z->img_v_max / z->img_comp[k].v; + r->ystep = r->vs >> 1; + r->w_lores = (z->s->img_x + r->hs-1) / r->hs; + r->ypos = 0; + r->line0 = r->line1 = z->img_comp[k].data; + + if (r->hs == 1 && r->vs == 1) r->resample = resample_row_1; + else if (r->hs == 1 && r->vs == 2) r->resample = stbi__resample_row_v_2; + else if (r->hs == 2 && r->vs == 1) r->resample = stbi__resample_row_h_2; + else if (r->hs == 2 && r->vs == 2) r->resample = z->resample_row_hv_2_kernel; + else r->resample = stbi__resample_row_generic; + } + + // can't error after this so, this is safe + output = (stbi_uc *) stbi__malloc_mad3(n, z->s->img_x, z->s->img_y, 1); + if (!output) { stbi__cleanup_jpeg(z); return stbi__errpuc("outofmem", "Out of memory"); } + + // now go ahead and resample + for (j=0; j < z->s->img_y; ++j) { + stbi_uc *out = output + n * z->s->img_x * j; + for (k=0; k < decode_n; ++k) { + stbi__resample *r = &res_comp[k]; + int y_bot = r->ystep >= (r->vs >> 1); + coutput[k] = r->resample(z->img_comp[k].linebuf, + y_bot ? r->line1 : r->line0, + y_bot ? r->line0 : r->line1, + r->w_lores, r->hs); + if (++r->ystep >= r->vs) { + r->ystep = 0; + r->line0 = r->line1; + if (++r->ypos < z->img_comp[k].y) + r->line1 += z->img_comp[k].w2; + } + } + if (n >= 3) { + stbi_uc *y = coutput[0]; + if (z->s->img_n == 3) { + if (is_rgb) { + for (i=0; i < z->s->img_x; ++i) { + out[0] = y[i]; + out[1] = coutput[1][i]; + out[2] = coutput[2][i]; + out[3] = 255; + out += n; + } + } else { + z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); + } + } else if (z->s->img_n == 4) { + if (z->app14_color_transform == 0) { // CMYK + for (i=0; i < z->s->img_x; ++i) { + stbi_uc m = coutput[3][i]; + out[0] = stbi__blinn_8x8(coutput[0][i], m); + out[1] = stbi__blinn_8x8(coutput[1][i], m); + out[2] = stbi__blinn_8x8(coutput[2][i], m); + out[3] = 255; + out += n; + } + } else if (z->app14_color_transform == 2) { // YCCK + z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); + for (i=0; i < z->s->img_x; ++i) { + stbi_uc m = coutput[3][i]; + out[0] = stbi__blinn_8x8(255 - out[0], m); + out[1] = stbi__blinn_8x8(255 - out[1], m); + out[2] = stbi__blinn_8x8(255 - out[2], m); + out += n; + } + } else { // YCbCr + alpha? Ignore the fourth channel for now + z->YCbCr_to_RGB_kernel(out, y, coutput[1], coutput[2], z->s->img_x, n); + } + } else + for (i=0; i < z->s->img_x; ++i) { + out[0] = out[1] = out[2] = y[i]; + out[3] = 255; // not used if n==3 + out += n; + } + } else { + if (is_rgb) { + if (n == 1) + for (i=0; i < z->s->img_x; ++i) + *out++ = stbi__compute_y(coutput[0][i], coutput[1][i], coutput[2][i]); + else { + for (i=0; i < z->s->img_x; ++i, out += 2) { + out[0] = stbi__compute_y(coutput[0][i], coutput[1][i], coutput[2][i]); + out[1] = 255; + } + } + } else if (z->s->img_n == 4 && z->app14_color_transform == 0) { + for (i=0; i < z->s->img_x; ++i) { + stbi_uc m = coutput[3][i]; + stbi_uc r = stbi__blinn_8x8(coutput[0][i], m); + stbi_uc g = stbi__blinn_8x8(coutput[1][i], m); + stbi_uc b = stbi__blinn_8x8(coutput[2][i], m); + out[0] = stbi__compute_y(r, g, b); + out[1] = 255; + out += n; + } + } else if (z->s->img_n == 4 && z->app14_color_transform == 2) { + for (i=0; i < z->s->img_x; ++i) { + out[0] = stbi__blinn_8x8(255 - coutput[0][i], coutput[3][i]); + out[1] = 255; + out += n; + } + } else { + stbi_uc *y = coutput[0]; + if (n == 1) + for (i=0; i < z->s->img_x; ++i) out[i] = y[i]; + else + for (i=0; i < z->s->img_x; ++i) { *out++ = y[i]; *out++ = 255; } + } + } + } + stbi__cleanup_jpeg(z); + *out_x = z->s->img_x; + *out_y = z->s->img_y; + if (comp) *comp = z->s->img_n >= 3 ? 3 : 1; // report original components, not output + return output; + } +} + +static void *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + unsigned char* result; + stbi__jpeg* j = (stbi__jpeg*) stbi__malloc(sizeof(stbi__jpeg)); + STBI_NOTUSED(ri); + j->s = s; + stbi__setup_jpeg(j); + result = load_jpeg_image(j, x,y,comp,req_comp); + STBI_FREE(j); + return result; +} + +static int stbi__jpeg_test(stbi__context *s) +{ + int r; + stbi__jpeg* j = (stbi__jpeg*)stbi__malloc(sizeof(stbi__jpeg)); + j->s = s; + stbi__setup_jpeg(j); + r = stbi__decode_jpeg_header(j, STBI__SCAN_type); + stbi__rewind(s); + STBI_FREE(j); + return r; +} + +static int stbi__jpeg_info_raw(stbi__jpeg *j, int *x, int *y, int *comp) +{ + if (!stbi__decode_jpeg_header(j, STBI__SCAN_header)) { + stbi__rewind( j->s ); + return 0; + } + if (x) *x = j->s->img_x; + if (y) *y = j->s->img_y; + if (comp) *comp = j->s->img_n >= 3 ? 3 : 1; + return 1; +} + +static int stbi__jpeg_info(stbi__context *s, int *x, int *y, int *comp) +{ + int result; + stbi__jpeg* j = (stbi__jpeg*) (stbi__malloc(sizeof(stbi__jpeg))); + j->s = s; + result = stbi__jpeg_info_raw(j, x, y, comp); + STBI_FREE(j); + return result; +} +#endif + +// public domain zlib decode v0.2 Sean Barrett 2006-11-18 +// simple implementation +// - all input must be provided in an upfront buffer +// - all output is written to a single output buffer (can malloc/realloc) +// performance +// - fast huffman + +#ifndef STBI_NO_ZLIB + +// fast-way is faster to check than jpeg huffman, but slow way is slower +#define STBI__ZFAST_BITS 9 // accelerate all cases in default tables +#define STBI__ZFAST_MASK ((1 << STBI__ZFAST_BITS) - 1) + +// zlib-style huffman encoding +// (jpegs packs from left, zlib from right, so can't share code) +typedef struct +{ + stbi__uint16 fast[1 << STBI__ZFAST_BITS]; + stbi__uint16 firstcode[16]; + int maxcode[17]; + stbi__uint16 firstsymbol[16]; + stbi_uc size[288]; + stbi__uint16 value[288]; +} stbi__zhuffman; + +stbi_inline static int stbi__bitreverse16(int n) +{ + n = ((n & 0xAAAA) >> 1) | ((n & 0x5555) << 1); + n = ((n & 0xCCCC) >> 2) | ((n & 0x3333) << 2); + n = ((n & 0xF0F0) >> 4) | ((n & 0x0F0F) << 4); + n = ((n & 0xFF00) >> 8) | ((n & 0x00FF) << 8); + return n; +} + +stbi_inline static int stbi__bit_reverse(int v, int bits) +{ + STBI_ASSERT(bits <= 16); + // to bit reverse n bits, reverse 16 and shift + // e.g. 11 bits, bit reverse and shift away 5 + return stbi__bitreverse16(v) >> (16-bits); +} + +static int stbi__zbuild_huffman(stbi__zhuffman *z, const stbi_uc *sizelist, int num) +{ + int i,k=0; + int code, next_code[16], sizes[17]; + + // DEFLATE spec for generating codes + memset(sizes, 0, sizeof(sizes)); + memset(z->fast, 0, sizeof(z->fast)); + for (i=0; i < num; ++i) + ++sizes[sizelist[i]]; + sizes[0] = 0; + for (i=1; i < 16; ++i) + if (sizes[i] > (1 << i)) + return stbi__err("bad sizes", "Corrupt PNG"); + code = 0; + for (i=1; i < 16; ++i) { + next_code[i] = code; + z->firstcode[i] = (stbi__uint16) code; + z->firstsymbol[i] = (stbi__uint16) k; + code = (code + sizes[i]); + if (sizes[i]) + if (code-1 >= (1 << i)) return stbi__err("bad codelengths","Corrupt PNG"); + z->maxcode[i] = code << (16-i); // preshift for inner loop + code <<= 1; + k += sizes[i]; + } + z->maxcode[16] = 0x10000; // sentinel + for (i=0; i < num; ++i) { + int s = sizelist[i]; + if (s) { + int c = next_code[s] - z->firstcode[s] + z->firstsymbol[s]; + stbi__uint16 fastv = (stbi__uint16) ((s << 9) | i); + z->size [c] = (stbi_uc ) s; + z->value[c] = (stbi__uint16) i; + if (s <= STBI__ZFAST_BITS) { + int j = stbi__bit_reverse(next_code[s],s); + while (j < (1 << STBI__ZFAST_BITS)) { + z->fast[j] = fastv; + j += (1 << s); + } + } + ++next_code[s]; + } + } + return 1; +} + +// zlib-from-memory implementation for PNG reading +// because PNG allows splitting the zlib stream arbitrarily, +// and it's annoying structurally to have PNG call ZLIB call PNG, +// we require PNG read all the IDATs and combine them into a single +// memory buffer + +typedef struct +{ + stbi_uc *zbuffer, *zbuffer_end; + int num_bits; + stbi__uint32 code_buffer; + + char *zout; + char *zout_start; + char *zout_end; + int z_expandable; + + stbi__zhuffman z_length, z_distance; +} stbi__zbuf; + +stbi_inline static int stbi__zeof(stbi__zbuf *z) +{ + return (z->zbuffer >= z->zbuffer_end); +} + +stbi_inline static stbi_uc stbi__zget8(stbi__zbuf *z) +{ + return stbi__zeof(z) ? 0 : *z->zbuffer++; +} + +static void stbi__fill_bits(stbi__zbuf *z) +{ + do { + if (z->code_buffer >= (1U << z->num_bits)) { + z->zbuffer = z->zbuffer_end; /* treat this as EOF so we fail. */ + return; + } + z->code_buffer |= (unsigned int) stbi__zget8(z) << z->num_bits; + z->num_bits += 8; + } while (z->num_bits <= 24); +} + +stbi_inline static unsigned int stbi__zreceive(stbi__zbuf *z, int n) +{ + unsigned int k; + if (z->num_bits < n) stbi__fill_bits(z); + k = z->code_buffer & ((1 << n) - 1); + z->code_buffer >>= n; + z->num_bits -= n; + return k; +} + +static int stbi__zhuffman_decode_slowpath(stbi__zbuf *a, stbi__zhuffman *z) +{ + int b,s,k; + // not resolved by fast table, so compute it the slow way + // use jpeg approach, which requires MSbits at top + k = stbi__bit_reverse(a->code_buffer, 16); + for (s=STBI__ZFAST_BITS+1; ; ++s) + if (k < z->maxcode[s]) + break; + if (s >= 16) return -1; // invalid code! + // code size is s, so: + b = (k >> (16-s)) - z->firstcode[s] + z->firstsymbol[s]; + if (b >= sizeof (z->size)) return -1; // some data was corrupt somewhere! + if (z->size[b] != s) return -1; // was originally an assert, but report failure instead. + a->code_buffer >>= s; + a->num_bits -= s; + return z->value[b]; +} + +stbi_inline static int stbi__zhuffman_decode(stbi__zbuf *a, stbi__zhuffman *z) +{ + int b,s; + if (a->num_bits < 16) { + if (stbi__zeof(a)) { + return -1; /* report error for unexpected end of data. */ + } + stbi__fill_bits(a); + } + b = z->fast[a->code_buffer & STBI__ZFAST_MASK]; + if (b) { + s = b >> 9; + a->code_buffer >>= s; + a->num_bits -= s; + return b & 511; + } + return stbi__zhuffman_decode_slowpath(a, z); +} + +static int stbi__zexpand(stbi__zbuf *z, char *zout, int n) // need to make room for n bytes +{ + char *q; + unsigned int cur, limit, old_limit; + z->zout = zout; + if (!z->z_expandable) return stbi__err("output buffer limit","Corrupt PNG"); + cur = (unsigned int) (z->zout - z->zout_start); + limit = old_limit = (unsigned) (z->zout_end - z->zout_start); + if (UINT_MAX - cur < (unsigned) n) return stbi__err("outofmem", "Out of memory"); + while (cur + n > limit) { + if(limit > UINT_MAX / 2) return stbi__err("outofmem", "Out of memory"); + limit *= 2; + } + q = (char *) STBI_REALLOC_SIZED(z->zout_start, old_limit, limit); + STBI_NOTUSED(old_limit); + if (q == NULL) return stbi__err("outofmem", "Out of memory"); + z->zout_start = q; + z->zout = q + cur; + z->zout_end = q + limit; + return 1; +} + +static const int stbi__zlength_base[31] = { + 3,4,5,6,7,8,9,10,11,13, + 15,17,19,23,27,31,35,43,51,59, + 67,83,99,115,131,163,195,227,258,0,0 }; + +static const int stbi__zlength_extra[31]= +{ 0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0,0,0 }; + +static const int stbi__zdist_base[32] = { 1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193, +257,385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577,0,0}; + +static const int stbi__zdist_extra[32] = +{ 0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13}; + +static int stbi__parse_huffman_block(stbi__zbuf *a) +{ + char *zout = a->zout; + for(;;) { + int z = stbi__zhuffman_decode(a, &a->z_length); + if (z < 256) { + if (z < 0) return stbi__err("bad huffman code","Corrupt PNG"); // error in huffman codes + if (zout >= a->zout_end) { + if (!stbi__zexpand(a, zout, 1)) return 0; + zout = a->zout; + } + *zout++ = (char) z; + } else { + stbi_uc *p; + int len,dist; + if (z == 256) { + a->zout = zout; + return 1; + } + z -= 257; + len = stbi__zlength_base[z]; + if (stbi__zlength_extra[z]) len += stbi__zreceive(a, stbi__zlength_extra[z]); + z = stbi__zhuffman_decode(a, &a->z_distance); + if (z < 0) return stbi__err("bad huffman code","Corrupt PNG"); + dist = stbi__zdist_base[z]; + if (stbi__zdist_extra[z]) dist += stbi__zreceive(a, stbi__zdist_extra[z]); + if (zout - a->zout_start < dist) return stbi__err("bad dist","Corrupt PNG"); + if (zout + len > a->zout_end) { + if (!stbi__zexpand(a, zout, len)) return 0; + zout = a->zout; + } + p = (stbi_uc *) (zout - dist); + if (dist == 1) { // run of one byte; common in images. + stbi_uc v = *p; + if (len) { do *zout++ = v; while (--len); } + } else { + if (len) { do *zout++ = *p++; while (--len); } + } + } + } +} + +static int stbi__compute_huffman_codes(stbi__zbuf *a) +{ + static const stbi_uc length_dezigzag[19] = { 16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15 }; + stbi__zhuffman z_codelength; + stbi_uc lencodes[286+32+137];//padding for maximum single op + stbi_uc codelength_sizes[19]; + int i,n; + + int hlit = stbi__zreceive(a,5) + 257; + int hdist = stbi__zreceive(a,5) + 1; + int hclen = stbi__zreceive(a,4) + 4; + int ntot = hlit + hdist; + + memset(codelength_sizes, 0, sizeof(codelength_sizes)); + for (i=0; i < hclen; ++i) { + int s = stbi__zreceive(a,3); + codelength_sizes[length_dezigzag[i]] = (stbi_uc) s; + } + if (!stbi__zbuild_huffman(&z_codelength, codelength_sizes, 19)) return 0; + + n = 0; + while (n < ntot) { + int c = stbi__zhuffman_decode(a, &z_codelength); + if (c < 0 || c >= 19) return stbi__err("bad codelengths", "Corrupt PNG"); + if (c < 16) + lencodes[n++] = (stbi_uc) c; + else { + stbi_uc fill = 0; + if (c == 16) { + c = stbi__zreceive(a,2)+3; + if (n == 0) return stbi__err("bad codelengths", "Corrupt PNG"); + fill = lencodes[n-1]; + } else if (c == 17) { + c = stbi__zreceive(a,3)+3; + } else if (c == 18) { + c = stbi__zreceive(a,7)+11; + } else { + return stbi__err("bad codelengths", "Corrupt PNG"); + } + if (ntot - n < c) return stbi__err("bad codelengths", "Corrupt PNG"); + memset(lencodes+n, fill, c); + n += c; + } + } + if (n != ntot) return stbi__err("bad codelengths","Corrupt PNG"); + if (!stbi__zbuild_huffman(&a->z_length, lencodes, hlit)) return 0; + if (!stbi__zbuild_huffman(&a->z_distance, lencodes+hlit, hdist)) return 0; + return 1; +} + +static int stbi__parse_uncompressed_block(stbi__zbuf *a) +{ + stbi_uc header[4]; + int len,nlen,k; + if (a->num_bits & 7) + stbi__zreceive(a, a->num_bits & 7); // discard + // drain the bit-packed data into header + k = 0; + while (a->num_bits > 0) { + header[k++] = (stbi_uc) (a->code_buffer & 255); // suppress MSVC run-time check + a->code_buffer >>= 8; + a->num_bits -= 8; + } + if (a->num_bits < 0) return stbi__err("zlib corrupt","Corrupt PNG"); + // now fill header the normal way + while (k < 4) + header[k++] = stbi__zget8(a); + len = header[1] * 256 + header[0]; + nlen = header[3] * 256 + header[2]; + if (nlen != (len ^ 0xffff)) return stbi__err("zlib corrupt","Corrupt PNG"); + if (a->zbuffer + len > a->zbuffer_end) return stbi__err("read past buffer","Corrupt PNG"); + if (a->zout + len > a->zout_end) + if (!stbi__zexpand(a, a->zout, len)) return 0; + memcpy(a->zout, a->zbuffer, len); + a->zbuffer += len; + a->zout += len; + return 1; +} + +static int stbi__parse_zlib_header(stbi__zbuf *a) +{ + int cmf = stbi__zget8(a); + int cm = cmf & 15; + /* int cinfo = cmf >> 4; */ + int flg = stbi__zget8(a); + if (stbi__zeof(a)) return stbi__err("bad zlib header","Corrupt PNG"); // zlib spec + if ((cmf*256+flg) % 31 != 0) return stbi__err("bad zlib header","Corrupt PNG"); // zlib spec + if (flg & 32) return stbi__err("no preset dict","Corrupt PNG"); // preset dictionary not allowed in png + if (cm != 8) return stbi__err("bad compression","Corrupt PNG"); // DEFLATE required for png + // window = 1 << (8 + cinfo)... but who cares, we fully buffer output + return 1; +} + +static const stbi_uc stbi__zdefault_length[288] = +{ + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, + 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, + 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,8,8,8,8,8,8,8,8 +}; +static const stbi_uc stbi__zdefault_distance[32] = +{ + 5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5 +}; +/* +Init algorithm: +{ + int i; // use <= to match clearly with spec + for (i=0; i <= 143; ++i) stbi__zdefault_length[i] = 8; + for ( ; i <= 255; ++i) stbi__zdefault_length[i] = 9; + for ( ; i <= 279; ++i) stbi__zdefault_length[i] = 7; + for ( ; i <= 287; ++i) stbi__zdefault_length[i] = 8; + + for (i=0; i <= 31; ++i) stbi__zdefault_distance[i] = 5; +} +*/ + +static int stbi__parse_zlib(stbi__zbuf *a, int parse_header) +{ + int final, type; + if (parse_header) + if (!stbi__parse_zlib_header(a)) return 0; + a->num_bits = 0; + a->code_buffer = 0; + do { + final = stbi__zreceive(a,1); + type = stbi__zreceive(a,2); + if (type == 0) { + if (!stbi__parse_uncompressed_block(a)) return 0; + } else if (type == 3) { + return 0; + } else { + if (type == 1) { + // use fixed code lengths + if (!stbi__zbuild_huffman(&a->z_length , stbi__zdefault_length , 288)) return 0; + if (!stbi__zbuild_huffman(&a->z_distance, stbi__zdefault_distance, 32)) return 0; + } else { + if (!stbi__compute_huffman_codes(a)) return 0; + } + if (!stbi__parse_huffman_block(a)) return 0; + } + } while (!final); + return 1; +} + +static int stbi__do_zlib(stbi__zbuf *a, char *obuf, int olen, int exp, int parse_header) +{ + a->zout_start = obuf; + a->zout = obuf; + a->zout_end = obuf + olen; + a->z_expandable = exp; + + return stbi__parse_zlib(a, parse_header); +} + +STBIDEF char *stbi_zlib_decode_malloc_guesssize(const char *buffer, int len, int initial_size, int *outlen) +{ + stbi__zbuf a; + char *p = (char *) stbi__malloc(initial_size); + if (p == NULL) return NULL; + a.zbuffer = (stbi_uc *) buffer; + a.zbuffer_end = (stbi_uc *) buffer + len; + if (stbi__do_zlib(&a, p, initial_size, 1, 1)) { + if (outlen) *outlen = (int) (a.zout - a.zout_start); + return a.zout_start; + } else { + STBI_FREE(a.zout_start); + return NULL; + } +} + +STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen) +{ + return stbi_zlib_decode_malloc_guesssize(buffer, len, 16384, outlen); +} + +STBIDEF char *stbi_zlib_decode_malloc_guesssize_headerflag(const char *buffer, int len, int initial_size, int *outlen, int parse_header) +{ + stbi__zbuf a; + char *p = (char *) stbi__malloc(initial_size); + if (p == NULL) return NULL; + a.zbuffer = (stbi_uc *) buffer; + a.zbuffer_end = (stbi_uc *) buffer + len; + if (stbi__do_zlib(&a, p, initial_size, 1, parse_header)) { + if (outlen) *outlen = (int) (a.zout - a.zout_start); + return a.zout_start; + } else { + STBI_FREE(a.zout_start); + return NULL; + } +} + +STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen) +{ + stbi__zbuf a; + a.zbuffer = (stbi_uc *) ibuffer; + a.zbuffer_end = (stbi_uc *) ibuffer + ilen; + if (stbi__do_zlib(&a, obuffer, olen, 0, 1)) + return (int) (a.zout - a.zout_start); + else + return -1; +} + +STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen) +{ + stbi__zbuf a; + char *p = (char *) stbi__malloc(16384); + if (p == NULL) return NULL; + a.zbuffer = (stbi_uc *) buffer; + a.zbuffer_end = (stbi_uc *) buffer+len; + if (stbi__do_zlib(&a, p, 16384, 1, 0)) { + if (outlen) *outlen = (int) (a.zout - a.zout_start); + return a.zout_start; + } else { + STBI_FREE(a.zout_start); + return NULL; + } +} + +STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen) +{ + stbi__zbuf a; + a.zbuffer = (stbi_uc *) ibuffer; + a.zbuffer_end = (stbi_uc *) ibuffer + ilen; + if (stbi__do_zlib(&a, obuffer, olen, 0, 0)) + return (int) (a.zout - a.zout_start); + else + return -1; +} +#endif + +// public domain "baseline" PNG decoder v0.10 Sean Barrett 2006-11-18 +// simple implementation +// - only 8-bit samples +// - no CRC checking +// - allocates lots of intermediate memory +// - avoids problem of streaming data between subsystems +// - avoids explicit window management +// performance +// - uses stb_zlib, a PD zlib implementation with fast huffman decoding + +#ifndef STBI_NO_PNG +typedef struct +{ + stbi__uint32 length; + stbi__uint32 type; +} stbi__pngchunk; + +static stbi__pngchunk stbi__get_chunk_header(stbi__context *s) +{ + stbi__pngchunk c; + c.length = stbi__get32be(s); + c.type = stbi__get32be(s); + return c; +} + +static int stbi__check_png_header(stbi__context *s) +{ + static const stbi_uc png_sig[8] = { 137,80,78,71,13,10,26,10 }; + int i; + for (i=0; i < 8; ++i) + if (stbi__get8(s) != png_sig[i]) return stbi__err("bad png sig","Not a PNG"); + return 1; +} + +typedef struct +{ + stbi__context *s; + stbi_uc *idata, *expanded, *out; + int depth; +} stbi__png; + + +enum { + STBI__F_none=0, + STBI__F_sub=1, + STBI__F_up=2, + STBI__F_avg=3, + STBI__F_paeth=4, + // synthetic filters used for first scanline to avoid needing a dummy row of 0s + STBI__F_avg_first, + STBI__F_paeth_first +}; + +static stbi_uc first_row_filter[5] = +{ + STBI__F_none, + STBI__F_sub, + STBI__F_none, + STBI__F_avg_first, + STBI__F_paeth_first +}; + +static int stbi__paeth(int a, int b, int c) +{ + int p = a + b - c; + int pa = abs(p-a); + int pb = abs(p-b); + int pc = abs(p-c); + if (pa <= pb && pa <= pc) return a; + if (pb <= pc) return b; + return c; +} + +static const stbi_uc stbi__depth_scale_table[9] = { 0, 0xff, 0x55, 0, 0x11, 0,0,0, 0x01 }; + +// create the png data from post-deflated data +static int stbi__create_png_image_raw(stbi__png *a, stbi_uc *raw, stbi__uint32 raw_len, int out_n, stbi__uint32 x, stbi__uint32 y, int depth, int color) +{ + int bytes = (depth == 16? 2 : 1); + stbi__context *s = a->s; + stbi__uint32 i,j,stride = x*out_n*bytes; + stbi__uint32 img_len, img_width_bytes; + int k; + int img_n = s->img_n; // copy it into a local for later + + int output_bytes = out_n*bytes; + int filter_bytes = img_n*bytes; + int width = x; + + STBI_ASSERT(out_n == s->img_n || out_n == s->img_n+1); + a->out = (stbi_uc *) stbi__malloc_mad3(x, y, output_bytes, 0); // extra bytes to write off the end into + if (!a->out) return stbi__err("outofmem", "Out of memory"); + + if (!stbi__mad3sizes_valid(img_n, x, depth, 7)) return stbi__err("too large", "Corrupt PNG"); + img_width_bytes = (((img_n * x * depth) + 7) >> 3); + img_len = (img_width_bytes + 1) * y; + + // we used to check for exact match between raw_len and img_len on non-interlaced PNGs, + // but issue #276 reported a PNG in the wild that had extra data at the end (all zeros), + // so just check for raw_len < img_len always. + if (raw_len < img_len) return stbi__err("not enough pixels","Corrupt PNG"); + + for (j=0; j < y; ++j) { + stbi_uc *cur = a->out + stride*j; + stbi_uc *prior; + int filter = *raw++; + + if (filter > 4) + return stbi__err("invalid filter","Corrupt PNG"); + + if (depth < 8) { + if (img_width_bytes > x) return stbi__err("invalid width","Corrupt PNG"); + cur += x*out_n - img_width_bytes; // store output to the rightmost img_len bytes, so we can decode in place + filter_bytes = 1; + width = img_width_bytes; + } + prior = cur - stride; // bugfix: need to compute this after 'cur +=' computation above + + // if first row, use special filter that doesn't sample previous row + if (j == 0) filter = first_row_filter[filter]; + + // handle first byte explicitly + for (k=0; k < filter_bytes; ++k) { + switch (filter) { + case STBI__F_none : cur[k] = raw[k]; break; + case STBI__F_sub : cur[k] = raw[k]; break; + case STBI__F_up : cur[k] = STBI__BYTECAST(raw[k] + prior[k]); break; + case STBI__F_avg : cur[k] = STBI__BYTECAST(raw[k] + (prior[k]>>1)); break; + case STBI__F_paeth : cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(0,prior[k],0)); break; + case STBI__F_avg_first : cur[k] = raw[k]; break; + case STBI__F_paeth_first: cur[k] = raw[k]; break; + } + } + + if (depth == 8) { + if (img_n != out_n) + cur[img_n] = 255; // first pixel + raw += img_n; + cur += out_n; + prior += out_n; + } else if (depth == 16) { + if (img_n != out_n) { + cur[filter_bytes] = 255; // first pixel top byte + cur[filter_bytes+1] = 255; // first pixel bottom byte + } + raw += filter_bytes; + cur += output_bytes; + prior += output_bytes; + } else { + raw += 1; + cur += 1; + prior += 1; + } + + // this is a little gross, so that we don't switch per-pixel or per-component + if (depth < 8 || img_n == out_n) { + int nk = (width - 1)*filter_bytes; + #define STBI__CASE(f) \ + case f: \ + for (k=0; k < nk; ++k) + switch (filter) { + // "none" filter turns into a memcpy here; make that explicit. + case STBI__F_none: memcpy(cur, raw, nk); break; + STBI__CASE(STBI__F_sub) { cur[k] = STBI__BYTECAST(raw[k] + cur[k-filter_bytes]); } break; + STBI__CASE(STBI__F_up) { cur[k] = STBI__BYTECAST(raw[k] + prior[k]); } break; + STBI__CASE(STBI__F_avg) { cur[k] = STBI__BYTECAST(raw[k] + ((prior[k] + cur[k-filter_bytes])>>1)); } break; + STBI__CASE(STBI__F_paeth) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k-filter_bytes],prior[k],prior[k-filter_bytes])); } break; + STBI__CASE(STBI__F_avg_first) { cur[k] = STBI__BYTECAST(raw[k] + (cur[k-filter_bytes] >> 1)); } break; + STBI__CASE(STBI__F_paeth_first) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k-filter_bytes],0,0)); } break; + } + #undef STBI__CASE + raw += nk; + } else { + STBI_ASSERT(img_n+1 == out_n); + #define STBI__CASE(f) \ + case f: \ + for (i=x-1; i >= 1; --i, cur[filter_bytes]=255,raw+=filter_bytes,cur+=output_bytes,prior+=output_bytes) \ + for (k=0; k < filter_bytes; ++k) + switch (filter) { + STBI__CASE(STBI__F_none) { cur[k] = raw[k]; } break; + STBI__CASE(STBI__F_sub) { cur[k] = STBI__BYTECAST(raw[k] + cur[k- output_bytes]); } break; + STBI__CASE(STBI__F_up) { cur[k] = STBI__BYTECAST(raw[k] + prior[k]); } break; + STBI__CASE(STBI__F_avg) { cur[k] = STBI__BYTECAST(raw[k] + ((prior[k] + cur[k- output_bytes])>>1)); } break; + STBI__CASE(STBI__F_paeth) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k- output_bytes],prior[k],prior[k- output_bytes])); } break; + STBI__CASE(STBI__F_avg_first) { cur[k] = STBI__BYTECAST(raw[k] + (cur[k- output_bytes] >> 1)); } break; + STBI__CASE(STBI__F_paeth_first) { cur[k] = STBI__BYTECAST(raw[k] + stbi__paeth(cur[k- output_bytes],0,0)); } break; + } + #undef STBI__CASE + + // the loop above sets the high byte of the pixels' alpha, but for + // 16 bit png files we also need the low byte set. we'll do that here. + if (depth == 16) { + cur = a->out + stride*j; // start at the beginning of the row again + for (i=0; i < x; ++i,cur+=output_bytes) { + cur[filter_bytes+1] = 255; + } + } + } + } + + // we make a separate pass to expand bits to pixels; for performance, + // this could run two scanlines behind the above code, so it won't + // intefere with filtering but will still be in the cache. + if (depth < 8) { + for (j=0; j < y; ++j) { + stbi_uc *cur = a->out + stride*j; + stbi_uc *in = a->out + stride*j + x*out_n - img_width_bytes; + // unpack 1/2/4-bit into a 8-bit buffer. allows us to keep the common 8-bit path optimal at minimal cost for 1/2/4-bit + // png guarante byte alignment, if width is not multiple of 8/4/2 we'll decode dummy trailing data that will be skipped in the later loop + stbi_uc scale = (color == 0) ? stbi__depth_scale_table[depth] : 1; // scale grayscale values to 0..255 range + + // note that the final byte might overshoot and write more data than desired. + // we can allocate enough data that this never writes out of memory, but it + // could also overwrite the next scanline. can it overwrite non-empty data + // on the next scanline? yes, consider 1-pixel-wide scanlines with 1-bit-per-pixel. + // so we need to explicitly clamp the final ones + + if (depth == 4) { + for (k=x*img_n; k >= 2; k-=2, ++in) { + *cur++ = scale * ((*in >> 4) ); + *cur++ = scale * ((*in ) & 0x0f); + } + if (k > 0) *cur++ = scale * ((*in >> 4) ); + } else if (depth == 2) { + for (k=x*img_n; k >= 4; k-=4, ++in) { + *cur++ = scale * ((*in >> 6) ); + *cur++ = scale * ((*in >> 4) & 0x03); + *cur++ = scale * ((*in >> 2) & 0x03); + *cur++ = scale * ((*in ) & 0x03); + } + if (k > 0) *cur++ = scale * ((*in >> 6) ); + if (k > 1) *cur++ = scale * ((*in >> 4) & 0x03); + if (k > 2) *cur++ = scale * ((*in >> 2) & 0x03); + } else if (depth == 1) { + for (k=x*img_n; k >= 8; k-=8, ++in) { + *cur++ = scale * ((*in >> 7) ); + *cur++ = scale * ((*in >> 6) & 0x01); + *cur++ = scale * ((*in >> 5) & 0x01); + *cur++ = scale * ((*in >> 4) & 0x01); + *cur++ = scale * ((*in >> 3) & 0x01); + *cur++ = scale * ((*in >> 2) & 0x01); + *cur++ = scale * ((*in >> 1) & 0x01); + *cur++ = scale * ((*in ) & 0x01); + } + if (k > 0) *cur++ = scale * ((*in >> 7) ); + if (k > 1) *cur++ = scale * ((*in >> 6) & 0x01); + if (k > 2) *cur++ = scale * ((*in >> 5) & 0x01); + if (k > 3) *cur++ = scale * ((*in >> 4) & 0x01); + if (k > 4) *cur++ = scale * ((*in >> 3) & 0x01); + if (k > 5) *cur++ = scale * ((*in >> 2) & 0x01); + if (k > 6) *cur++ = scale * ((*in >> 1) & 0x01); + } + if (img_n != out_n) { + int q; + // insert alpha = 255 + cur = a->out + stride*j; + if (img_n == 1) { + for (q=x-1; q >= 0; --q) { + cur[q*2+1] = 255; + cur[q*2+0] = cur[q]; + } + } else { + STBI_ASSERT(img_n == 3); + for (q=x-1; q >= 0; --q) { + cur[q*4+3] = 255; + cur[q*4+2] = cur[q*3+2]; + cur[q*4+1] = cur[q*3+1]; + cur[q*4+0] = cur[q*3+0]; + } + } + } + } + } else if (depth == 16) { + // force the image data from big-endian to platform-native. + // this is done in a separate pass due to the decoding relying + // on the data being untouched, but could probably be done + // per-line during decode if care is taken. + stbi_uc *cur = a->out; + stbi__uint16 *cur16 = (stbi__uint16*)cur; + + for(i=0; i < x*y*out_n; ++i,cur16++,cur+=2) { + *cur16 = (cur[0] << 8) | cur[1]; + } + } + + return 1; +} + +static int stbi__create_png_image(stbi__png *a, stbi_uc *image_data, stbi__uint32 image_data_len, int out_n, int depth, int color, int interlaced) +{ + int bytes = (depth == 16 ? 2 : 1); + int out_bytes = out_n * bytes; + stbi_uc *final; + int p; + if (!interlaced) + return stbi__create_png_image_raw(a, image_data, image_data_len, out_n, a->s->img_x, a->s->img_y, depth, color); + + // de-interlacing + final = (stbi_uc *) stbi__malloc_mad3(a->s->img_x, a->s->img_y, out_bytes, 0); + for (p=0; p < 7; ++p) { + int xorig[] = { 0,4,0,2,0,1,0 }; + int yorig[] = { 0,0,4,0,2,0,1 }; + int xspc[] = { 8,8,4,4,2,2,1 }; + int yspc[] = { 8,8,8,4,4,2,2 }; + int i,j,x,y; + // pass1_x[4] = 0, pass1_x[5] = 1, pass1_x[12] = 1 + x = (a->s->img_x - xorig[p] + xspc[p]-1) / xspc[p]; + y = (a->s->img_y - yorig[p] + yspc[p]-1) / yspc[p]; + if (x && y) { + stbi__uint32 img_len = ((((a->s->img_n * x * depth) + 7) >> 3) + 1) * y; + if (!stbi__create_png_image_raw(a, image_data, image_data_len, out_n, x, y, depth, color)) { + STBI_FREE(final); + return 0; + } + for (j=0; j < y; ++j) { + for (i=0; i < x; ++i) { + int out_y = j*yspc[p]+yorig[p]; + int out_x = i*xspc[p]+xorig[p]; + memcpy(final + out_y*a->s->img_x*out_bytes + out_x*out_bytes, + a->out + (j*x+i)*out_bytes, out_bytes); + } + } + STBI_FREE(a->out); + image_data += img_len; + image_data_len -= img_len; + } + } + a->out = final; + + return 1; +} + +static int stbi__compute_transparency(stbi__png *z, stbi_uc tc[3], int out_n) +{ + stbi__context *s = z->s; + stbi__uint32 i, pixel_count = s->img_x * s->img_y; + stbi_uc *p = z->out; + + // compute color-based transparency, assuming we've + // already got 255 as the alpha value in the output + STBI_ASSERT(out_n == 2 || out_n == 4); + + if (out_n == 2) { + for (i=0; i < pixel_count; ++i) { + p[1] = (p[0] == tc[0] ? 0 : 255); + p += 2; + } + } else { + for (i=0; i < pixel_count; ++i) { + if (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2]) + p[3] = 0; + p += 4; + } + } + return 1; +} + +static int stbi__compute_transparency16(stbi__png *z, stbi__uint16 tc[3], int out_n) +{ + stbi__context *s = z->s; + stbi__uint32 i, pixel_count = s->img_x * s->img_y; + stbi__uint16 *p = (stbi__uint16*) z->out; + + // compute color-based transparency, assuming we've + // already got 65535 as the alpha value in the output + STBI_ASSERT(out_n == 2 || out_n == 4); + + if (out_n == 2) { + for (i = 0; i < pixel_count; ++i) { + p[1] = (p[0] == tc[0] ? 0 : 65535); + p += 2; + } + } else { + for (i = 0; i < pixel_count; ++i) { + if (p[0] == tc[0] && p[1] == tc[1] && p[2] == tc[2]) + p[3] = 0; + p += 4; + } + } + return 1; +} + +static int stbi__expand_png_palette(stbi__png *a, stbi_uc *palette, int len, int pal_img_n) +{ + stbi__uint32 i, pixel_count = a->s->img_x * a->s->img_y; + stbi_uc *p, *temp_out, *orig = a->out; + + p = (stbi_uc *) stbi__malloc_mad2(pixel_count, pal_img_n, 0); + if (p == NULL) return stbi__err("outofmem", "Out of memory"); + + // between here and free(out) below, exitting would leak + temp_out = p; + + if (pal_img_n == 3) { + for (i=0; i < pixel_count; ++i) { + int n = orig[i]*4; + p[0] = palette[n ]; + p[1] = palette[n+1]; + p[2] = palette[n+2]; + p += 3; + } + } else { + for (i=0; i < pixel_count; ++i) { + int n = orig[i]*4; + p[0] = palette[n ]; + p[1] = palette[n+1]; + p[2] = palette[n+2]; + p[3] = palette[n+3]; + p += 4; + } + } + STBI_FREE(a->out); + a->out = temp_out; + + STBI_NOTUSED(len); + + return 1; +} + +static int stbi__unpremultiply_on_load = 0; +static int stbi__de_iphone_flag = 0; + +STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply) +{ + stbi__unpremultiply_on_load = flag_true_if_should_unpremultiply; +} + +STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert) +{ + stbi__de_iphone_flag = flag_true_if_should_convert; +} + +static void stbi__de_iphone(stbi__png *z) +{ + stbi__context *s = z->s; + stbi__uint32 i, pixel_count = s->img_x * s->img_y; + stbi_uc *p = z->out; + + if (s->img_out_n == 3) { // convert bgr to rgb + for (i=0; i < pixel_count; ++i) { + stbi_uc t = p[0]; + p[0] = p[2]; + p[2] = t; + p += 3; + } + } else { + STBI_ASSERT(s->img_out_n == 4); + if (stbi__unpremultiply_on_load) { + // convert bgr to rgb and unpremultiply + for (i=0; i < pixel_count; ++i) { + stbi_uc a = p[3]; + stbi_uc t = p[0]; + if (a) { + stbi_uc half = a / 2; + p[0] = (p[2] * 255 + half) / a; + p[1] = (p[1] * 255 + half) / a; + p[2] = ( t * 255 + half) / a; + } else { + p[0] = p[2]; + p[2] = t; + } + p += 4; + } + } else { + // convert bgr to rgb + for (i=0; i < pixel_count; ++i) { + stbi_uc t = p[0]; + p[0] = p[2]; + p[2] = t; + p += 4; + } + } + } +} + +#define STBI__PNG_TYPE(a,b,c,d) (((unsigned) (a) << 24) + ((unsigned) (b) << 16) + ((unsigned) (c) << 8) + (unsigned) (d)) + +static int stbi__parse_png_file(stbi__png *z, int scan, int req_comp) +{ + stbi_uc palette[1024], pal_img_n=0; + stbi_uc has_trans=0, tc[3]={0}; + stbi__uint16 tc16[3]; + stbi__uint32 ioff=0, idata_limit=0, i, pal_len=0; + int first=1,k,interlace=0, color=0, is_iphone=0; + stbi__context *s = z->s; + + z->expanded = NULL; + z->idata = NULL; + z->out = NULL; + + if (!stbi__check_png_header(s)) return 0; + + if (scan == STBI__SCAN_type) return 1; + + for (;;) { + stbi__pngchunk c = stbi__get_chunk_header(s); + switch (c.type) { + case STBI__PNG_TYPE('C','g','B','I'): + is_iphone = 1; + stbi__skip(s, c.length); + break; + case STBI__PNG_TYPE('I','H','D','R'): { + int comp,filter; + if (!first) return stbi__err("multiple IHDR","Corrupt PNG"); + first = 0; + if (c.length != 13) return stbi__err("bad IHDR len","Corrupt PNG"); + s->img_x = stbi__get32be(s); + s->img_y = stbi__get32be(s); + if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + z->depth = stbi__get8(s); if (z->depth != 1 && z->depth != 2 && z->depth != 4 && z->depth != 8 && z->depth != 16) return stbi__err("1/2/4/8/16-bit only","PNG not supported: 1/2/4/8/16-bit only"); + color = stbi__get8(s); if (color > 6) return stbi__err("bad ctype","Corrupt PNG"); + if (color == 3 && z->depth == 16) return stbi__err("bad ctype","Corrupt PNG"); + if (color == 3) pal_img_n = 3; else if (color & 1) return stbi__err("bad ctype","Corrupt PNG"); + comp = stbi__get8(s); if (comp) return stbi__err("bad comp method","Corrupt PNG"); + filter= stbi__get8(s); if (filter) return stbi__err("bad filter method","Corrupt PNG"); + interlace = stbi__get8(s); if (interlace>1) return stbi__err("bad interlace method","Corrupt PNG"); + if (!s->img_x || !s->img_y) return stbi__err("0-pixel image","Corrupt PNG"); + if (!pal_img_n) { + s->img_n = (color & 2 ? 3 : 1) + (color & 4 ? 1 : 0); + if ((1 << 30) / s->img_x / s->img_n < s->img_y) return stbi__err("too large", "Image too large to decode"); + if (scan == STBI__SCAN_header) return 1; + } else { + // if paletted, then pal_n is our final components, and + // img_n is # components to decompress/filter. + s->img_n = 1; + if ((1 << 30) / s->img_x / 4 < s->img_y) return stbi__err("too large","Corrupt PNG"); + // if SCAN_header, have to scan to see if we have a tRNS + } + break; + } + + case STBI__PNG_TYPE('P','L','T','E'): { + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (c.length > 256*3) return stbi__err("invalid PLTE","Corrupt PNG"); + pal_len = c.length / 3; + if (pal_len * 3 != c.length) return stbi__err("invalid PLTE","Corrupt PNG"); + for (i=0; i < pal_len; ++i) { + palette[i*4+0] = stbi__get8(s); + palette[i*4+1] = stbi__get8(s); + palette[i*4+2] = stbi__get8(s); + palette[i*4+3] = 255; + } + break; + } + + case STBI__PNG_TYPE('t','R','N','S'): { + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (z->idata) return stbi__err("tRNS after IDAT","Corrupt PNG"); + if (pal_img_n) { + if (scan == STBI__SCAN_header) { s->img_n = 4; return 1; } + if (pal_len == 0) return stbi__err("tRNS before PLTE","Corrupt PNG"); + if (c.length > pal_len) return stbi__err("bad tRNS len","Corrupt PNG"); + pal_img_n = 4; + for (i=0; i < c.length; ++i) + palette[i*4+3] = stbi__get8(s); + } else { + if (!(s->img_n & 1)) return stbi__err("tRNS with alpha","Corrupt PNG"); + if (c.length != (stbi__uint32) s->img_n*2) return stbi__err("bad tRNS len","Corrupt PNG"); + has_trans = 1; + if (z->depth == 16) { + for (k = 0; k < s->img_n; ++k) tc16[k] = (stbi__uint16)stbi__get16be(s); // copy the values as-is + } else { + for (k = 0; k < s->img_n; ++k) tc[k] = (stbi_uc)(stbi__get16be(s) & 255) * stbi__depth_scale_table[z->depth]; // non 8-bit images will be larger + } + } + break; + } + + case STBI__PNG_TYPE('I','D','A','T'): { + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (pal_img_n && !pal_len) return stbi__err("no PLTE","Corrupt PNG"); + if (scan == STBI__SCAN_header) { s->img_n = pal_img_n; return 1; } + if ((int)(ioff + c.length) < (int)ioff) return 0; + if (ioff + c.length > idata_limit) { + stbi__uint32 idata_limit_old = idata_limit; + stbi_uc *p; + if (idata_limit == 0) idata_limit = c.length > 4096 ? c.length : 4096; + while (ioff + c.length > idata_limit) + idata_limit *= 2; + STBI_NOTUSED(idata_limit_old); + p = (stbi_uc *) STBI_REALLOC_SIZED(z->idata, idata_limit_old, idata_limit); if (p == NULL) return stbi__err("outofmem", "Out of memory"); + z->idata = p; + } + if (!stbi__getn(s, z->idata+ioff,c.length)) return stbi__err("outofdata","Corrupt PNG"); + ioff += c.length; + break; + } + + case STBI__PNG_TYPE('I','E','N','D'): { + stbi__uint32 raw_len, bpl; + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if (scan != STBI__SCAN_load) return 1; + if (z->idata == NULL) return stbi__err("no IDAT","Corrupt PNG"); + // initial guess for decoded data size to avoid unnecessary reallocs + bpl = (s->img_x * z->depth + 7) / 8; // bytes per line, per component + raw_len = bpl * s->img_y * s->img_n /* pixels */ + s->img_y /* filter mode per row */; + z->expanded = (stbi_uc *) stbi_zlib_decode_malloc_guesssize_headerflag((char *) z->idata, ioff, raw_len, (int *) &raw_len, !is_iphone); + if (z->expanded == NULL) return 0; // zlib should set error + STBI_FREE(z->idata); z->idata = NULL; + if ((req_comp == s->img_n+1 && req_comp != 3 && !pal_img_n) || has_trans) + s->img_out_n = s->img_n+1; + else + s->img_out_n = s->img_n; + if (!stbi__create_png_image(z, z->expanded, raw_len, s->img_out_n, z->depth, color, interlace)) return 0; + if (has_trans) { + if (z->depth == 16) { + if (!stbi__compute_transparency16(z, tc16, s->img_out_n)) return 0; + } else { + if (!stbi__compute_transparency(z, tc, s->img_out_n)) return 0; + } + } + if (is_iphone && stbi__de_iphone_flag && s->img_out_n > 2) + stbi__de_iphone(z); + if (pal_img_n) { + // pal_img_n == 3 or 4 + s->img_n = pal_img_n; // record the actual colors we had + s->img_out_n = pal_img_n; + if (req_comp >= 3) s->img_out_n = req_comp; + if (!stbi__expand_png_palette(z, palette, pal_len, s->img_out_n)) + return 0; + } else if (has_trans) { + // non-paletted image with tRNS -> source image has (constant) alpha + ++s->img_n; + } + STBI_FREE(z->expanded); z->expanded = NULL; + // end of PNG chunk, read and skip CRC + stbi__get32be(s); + return 1; + } + + default: + // if critical, fail + if (first) return stbi__err("first not IHDR", "Corrupt PNG"); + if ((c.type & (1 << 29)) == 0) { + #ifndef STBI_NO_FAILURE_STRINGS + // not threadsafe + static char invalid_chunk[] = "XXXX PNG chunk not known"; + invalid_chunk[0] = STBI__BYTECAST(c.type >> 24); + invalid_chunk[1] = STBI__BYTECAST(c.type >> 16); + invalid_chunk[2] = STBI__BYTECAST(c.type >> 8); + invalid_chunk[3] = STBI__BYTECAST(c.type >> 0); + #endif + return stbi__err(invalid_chunk, "PNG not supported: unknown PNG chunk type"); + } + stbi__skip(s, c.length); + break; + } + // end of PNG chunk, read and skip CRC + stbi__get32be(s); + } +} + +static void *stbi__do_png(stbi__png *p, int *x, int *y, int *n, int req_comp, stbi__result_info *ri) +{ + void *result=NULL; + if (req_comp < 0 || req_comp > 4) return stbi__errpuc("bad req_comp", "Internal error"); + if (stbi__parse_png_file(p, STBI__SCAN_load, req_comp)) { + if (p->depth <= 8) + ri->bits_per_channel = 8; + else if (p->depth == 16) + ri->bits_per_channel = 16; + else + return stbi__errpuc("bad bits_per_channel", "PNG not supported: unsupported color depth"); + result = p->out; + p->out = NULL; + if (req_comp && req_comp != p->s->img_out_n) { + if (ri->bits_per_channel == 8) + result = stbi__convert_format((unsigned char *) result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y); + else + result = stbi__convert_format16((stbi__uint16 *) result, p->s->img_out_n, req_comp, p->s->img_x, p->s->img_y); + p->s->img_out_n = req_comp; + if (result == NULL) return result; + } + *x = p->s->img_x; + *y = p->s->img_y; + if (n) *n = p->s->img_n; + } + STBI_FREE(p->out); p->out = NULL; + STBI_FREE(p->expanded); p->expanded = NULL; + STBI_FREE(p->idata); p->idata = NULL; + + return result; +} + +static void *stbi__png_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi__png p; + p.s = s; + return stbi__do_png(&p, x,y,comp,req_comp, ri); +} + +static int stbi__png_test(stbi__context *s) +{ + int r; + r = stbi__check_png_header(s); + stbi__rewind(s); + return r; +} + +static int stbi__png_info_raw(stbi__png *p, int *x, int *y, int *comp) +{ + if (!stbi__parse_png_file(p, STBI__SCAN_header, 0)) { + stbi__rewind( p->s ); + return 0; + } + if (x) *x = p->s->img_x; + if (y) *y = p->s->img_y; + if (comp) *comp = p->s->img_n; + return 1; +} + +static int stbi__png_info(stbi__context *s, int *x, int *y, int *comp) +{ + stbi__png p; + p.s = s; + return stbi__png_info_raw(&p, x, y, comp); +} + +static int stbi__png_is16(stbi__context *s) +{ + stbi__png p; + p.s = s; + if (!stbi__png_info_raw(&p, NULL, NULL, NULL)) + return 0; + if (p.depth != 16) { + stbi__rewind(p.s); + return 0; + } + return 1; +} +#endif + +// Microsoft/Windows BMP image + +#ifndef STBI_NO_BMP +static int stbi__bmp_test_raw(stbi__context *s) +{ + int r; + int sz; + if (stbi__get8(s) != 'B') return 0; + if (stbi__get8(s) != 'M') return 0; + stbi__get32le(s); // discard filesize + stbi__get16le(s); // discard reserved + stbi__get16le(s); // discard reserved + stbi__get32le(s); // discard data offset + sz = stbi__get32le(s); + r = (sz == 12 || sz == 40 || sz == 56 || sz == 108 || sz == 124); + return r; +} + +static int stbi__bmp_test(stbi__context *s) +{ + int r = stbi__bmp_test_raw(s); + stbi__rewind(s); + return r; +} + + +// returns 0..31 for the highest set bit +static int stbi__high_bit(unsigned int z) +{ + int n=0; + if (z == 0) return -1; + if (z >= 0x10000) { n += 16; z >>= 16; } + if (z >= 0x00100) { n += 8; z >>= 8; } + if (z >= 0x00010) { n += 4; z >>= 4; } + if (z >= 0x00004) { n += 2; z >>= 2; } + if (z >= 0x00002) { n += 1;/* >>= 1;*/ } + return n; +} + +static int stbi__bitcount(unsigned int a) +{ + a = (a & 0x55555555) + ((a >> 1) & 0x55555555); // max 2 + a = (a & 0x33333333) + ((a >> 2) & 0x33333333); // max 4 + a = (a + (a >> 4)) & 0x0f0f0f0f; // max 8 per 4, now 8 bits + a = (a + (a >> 8)); // max 16 per 8 bits + a = (a + (a >> 16)); // max 32 per 8 bits + return a & 0xff; +} + +// extract an arbitrarily-aligned N-bit value (N=bits) +// from v, and then make it 8-bits long and fractionally +// extend it to full full range. +static int stbi__shiftsigned(unsigned int v, int shift, int bits) +{ + static unsigned int mul_table[9] = { + 0, + 0xff/*0b11111111*/, 0x55/*0b01010101*/, 0x49/*0b01001001*/, 0x11/*0b00010001*/, + 0x21/*0b00100001*/, 0x41/*0b01000001*/, 0x81/*0b10000001*/, 0x01/*0b00000001*/, + }; + static unsigned int shift_table[9] = { + 0, 0,0,1,0,2,4,6,0, + }; + if (shift < 0) + v <<= -shift; + else + v >>= shift; + STBI_ASSERT(v < 256); + v >>= (8-bits); + STBI_ASSERT(bits >= 0 && bits <= 8); + return (int) ((unsigned) v * mul_table[bits]) >> shift_table[bits]; +} + +typedef struct +{ + int bpp, offset, hsz; + unsigned int mr,mg,mb,ma, all_a; + int extra_read; +} stbi__bmp_data; + +static void *stbi__bmp_parse_header(stbi__context *s, stbi__bmp_data *info) +{ + int hsz; + if (stbi__get8(s) != 'B' || stbi__get8(s) != 'M') return stbi__errpuc("not BMP", "Corrupt BMP"); + stbi__get32le(s); // discard filesize + stbi__get16le(s); // discard reserved + stbi__get16le(s); // discard reserved + info->offset = stbi__get32le(s); + info->hsz = hsz = stbi__get32le(s); + info->mr = info->mg = info->mb = info->ma = 0; + info->extra_read = 14; + + if (info->offset < 0) return stbi__errpuc("bad BMP", "bad BMP"); + + if (hsz != 12 && hsz != 40 && hsz != 56 && hsz != 108 && hsz != 124) return stbi__errpuc("unknown BMP", "BMP type not supported: unknown"); + if (hsz == 12) { + s->img_x = stbi__get16le(s); + s->img_y = stbi__get16le(s); + } else { + s->img_x = stbi__get32le(s); + s->img_y = stbi__get32le(s); + } + if (stbi__get16le(s) != 1) return stbi__errpuc("bad BMP", "bad BMP"); + info->bpp = stbi__get16le(s); + if (hsz != 12) { + int compress = stbi__get32le(s); + if (compress == 1 || compress == 2) return stbi__errpuc("BMP RLE", "BMP type not supported: RLE"); + stbi__get32le(s); // discard sizeof + stbi__get32le(s); // discard hres + stbi__get32le(s); // discard vres + stbi__get32le(s); // discard colorsused + stbi__get32le(s); // discard max important + if (hsz == 40 || hsz == 56) { + if (hsz == 56) { + stbi__get32le(s); + stbi__get32le(s); + stbi__get32le(s); + stbi__get32le(s); + } + if (info->bpp == 16 || info->bpp == 32) { + if (compress == 0) { + if (info->bpp == 32) { + info->mr = 0xffu << 16; + info->mg = 0xffu << 8; + info->mb = 0xffu << 0; + info->ma = 0xffu << 24; + info->all_a = 0; // if all_a is 0 at end, then we loaded alpha channel but it was all 0 + } else { + info->mr = 31u << 10; + info->mg = 31u << 5; + info->mb = 31u << 0; + } + } else if (compress == 3) { + info->mr = stbi__get32le(s); + info->mg = stbi__get32le(s); + info->mb = stbi__get32le(s); + info->extra_read += 12; + // not documented, but generated by photoshop and handled by mspaint + if (info->mr == info->mg && info->mg == info->mb) { + // ?!?!? + return stbi__errpuc("bad BMP", "bad BMP"); + } + } else + return stbi__errpuc("bad BMP", "bad BMP"); + } + } else { + int i; + if (hsz != 108 && hsz != 124) + return stbi__errpuc("bad BMP", "bad BMP"); + info->mr = stbi__get32le(s); + info->mg = stbi__get32le(s); + info->mb = stbi__get32le(s); + info->ma = stbi__get32le(s); + stbi__get32le(s); // discard color space + for (i=0; i < 12; ++i) + stbi__get32le(s); // discard color space parameters + if (hsz == 124) { + stbi__get32le(s); // discard rendering intent + stbi__get32le(s); // discard offset of profile data + stbi__get32le(s); // discard size of profile data + stbi__get32le(s); // discard reserved + } + } + } + return (void *) 1; +} + + +static void *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi_uc *out; + unsigned int mr=0,mg=0,mb=0,ma=0, all_a; + stbi_uc pal[256][4]; + int psize=0,i,j,width; + int flip_vertically, pad, target; + stbi__bmp_data info; + STBI_NOTUSED(ri); + + info.all_a = 255; + if (stbi__bmp_parse_header(s, &info) == NULL) + return NULL; // error code already set + + flip_vertically = ((int) s->img_y) > 0; + s->img_y = abs((int) s->img_y); + + if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + + mr = info.mr; + mg = info.mg; + mb = info.mb; + ma = info.ma; + all_a = info.all_a; + + if (info.hsz == 12) { + if (info.bpp < 24) + psize = (info.offset - info.extra_read - 24) / 3; + } else { + if (info.bpp < 16) + psize = (info.offset - info.extra_read - info.hsz) >> 2; + } + if (psize == 0) { + STBI_ASSERT(info.offset == s->callback_already_read + (int) (s->img_buffer - s->img_buffer_original)); + if (info.offset != s->callback_already_read + (s->img_buffer - s->buffer_start)) { + return stbi__errpuc("bad offset", "Corrupt BMP"); + } + } + + if (info.bpp == 24 && ma == 0xff000000) + s->img_n = 3; + else + s->img_n = ma ? 4 : 3; + if (req_comp && req_comp >= 3) // we can directly decode 3 or 4 + target = req_comp; + else + target = s->img_n; // if they want monochrome, we'll post-convert + + // sanity-check size + if (!stbi__mad3sizes_valid(target, s->img_x, s->img_y, 0)) + return stbi__errpuc("too large", "Corrupt BMP"); + + out = (stbi_uc *) stbi__malloc_mad3(target, s->img_x, s->img_y, 0); + if (!out) return stbi__errpuc("outofmem", "Out of memory"); + if (info.bpp < 16) { + int z=0; + if (psize == 0 || psize > 256) { STBI_FREE(out); return stbi__errpuc("invalid", "Corrupt BMP"); } + for (i=0; i < psize; ++i) { + pal[i][2] = stbi__get8(s); + pal[i][1] = stbi__get8(s); + pal[i][0] = stbi__get8(s); + if (info.hsz != 12) stbi__get8(s); + pal[i][3] = 255; + } + stbi__skip(s, info.offset - info.extra_read - info.hsz - psize * (info.hsz == 12 ? 3 : 4)); + if (info.bpp == 1) width = (s->img_x + 7) >> 3; + else if (info.bpp == 4) width = (s->img_x + 1) >> 1; + else if (info.bpp == 8) width = s->img_x; + else { STBI_FREE(out); return stbi__errpuc("bad bpp", "Corrupt BMP"); } + pad = (-width)&3; + if (info.bpp == 1) { + for (j=0; j < (int) s->img_y; ++j) { + int bit_offset = 7, v = stbi__get8(s); + for (i=0; i < (int) s->img_x; ++i) { + int color = (v>>bit_offset)&0x1; + out[z++] = pal[color][0]; + out[z++] = pal[color][1]; + out[z++] = pal[color][2]; + if (target == 4) out[z++] = 255; + if (i+1 == (int) s->img_x) break; + if((--bit_offset) < 0) { + bit_offset = 7; + v = stbi__get8(s); + } + } + stbi__skip(s, pad); + } + } else { + for (j=0; j < (int) s->img_y; ++j) { + for (i=0; i < (int) s->img_x; i += 2) { + int v=stbi__get8(s),v2=0; + if (info.bpp == 4) { + v2 = v & 15; + v >>= 4; + } + out[z++] = pal[v][0]; + out[z++] = pal[v][1]; + out[z++] = pal[v][2]; + if (target == 4) out[z++] = 255; + if (i+1 == (int) s->img_x) break; + v = (info.bpp == 8) ? stbi__get8(s) : v2; + out[z++] = pal[v][0]; + out[z++] = pal[v][1]; + out[z++] = pal[v][2]; + if (target == 4) out[z++] = 255; + } + stbi__skip(s, pad); + } + } + } else { + int rshift=0,gshift=0,bshift=0,ashift=0,rcount=0,gcount=0,bcount=0,acount=0; + int z = 0; + int easy=0; + stbi__skip(s, info.offset - info.extra_read - info.hsz); + if (info.bpp == 24) width = 3 * s->img_x; + else if (info.bpp == 16) width = 2*s->img_x; + else /* bpp = 32 and pad = 0 */ width=0; + pad = (-width) & 3; + if (info.bpp == 24) { + easy = 1; + } else if (info.bpp == 32) { + if (mb == 0xff && mg == 0xff00 && mr == 0x00ff0000 && ma == 0xff000000) + easy = 2; + } + if (!easy) { + if (!mr || !mg || !mb) { STBI_FREE(out); return stbi__errpuc("bad masks", "Corrupt BMP"); } + // right shift amt to put high bit in position #7 + rshift = stbi__high_bit(mr)-7; rcount = stbi__bitcount(mr); + gshift = stbi__high_bit(mg)-7; gcount = stbi__bitcount(mg); + bshift = stbi__high_bit(mb)-7; bcount = stbi__bitcount(mb); + ashift = stbi__high_bit(ma)-7; acount = stbi__bitcount(ma); + if (rcount > 8 || gcount > 8 || bcount > 8 || acount > 8) { STBI_FREE(out); return stbi__errpuc("bad masks", "Corrupt BMP"); } + } + for (j=0; j < (int) s->img_y; ++j) { + if (easy) { + for (i=0; i < (int) s->img_x; ++i) { + unsigned char a; + out[z+2] = stbi__get8(s); + out[z+1] = stbi__get8(s); + out[z+0] = stbi__get8(s); + z += 3; + a = (easy == 2 ? stbi__get8(s) : 255); + all_a |= a; + if (target == 4) out[z++] = a; + } + } else { + int bpp = info.bpp; + for (i=0; i < (int) s->img_x; ++i) { + stbi__uint32 v = (bpp == 16 ? (stbi__uint32) stbi__get16le(s) : stbi__get32le(s)); + unsigned int a; + out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mr, rshift, rcount)); + out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mg, gshift, gcount)); + out[z++] = STBI__BYTECAST(stbi__shiftsigned(v & mb, bshift, bcount)); + a = (ma ? stbi__shiftsigned(v & ma, ashift, acount) : 255); + all_a |= a; + if (target == 4) out[z++] = STBI__BYTECAST(a); + } + } + stbi__skip(s, pad); + } + } + + // if alpha channel is all 0s, replace with all 255s + if (target == 4 && all_a == 0) + for (i=4*s->img_x*s->img_y-1; i >= 0; i -= 4) + out[i] = 255; + + if (flip_vertically) { + stbi_uc t; + for (j=0; j < (int) s->img_y>>1; ++j) { + stbi_uc *p1 = out + j *s->img_x*target; + stbi_uc *p2 = out + (s->img_y-1-j)*s->img_x*target; + for (i=0; i < (int) s->img_x*target; ++i) { + t = p1[i]; p1[i] = p2[i]; p2[i] = t; + } + } + } + + if (req_comp && req_comp != target) { + out = stbi__convert_format(out, target, req_comp, s->img_x, s->img_y); + if (out == NULL) return out; // stbi__convert_format frees input on failure + } + + *x = s->img_x; + *y = s->img_y; + if (comp) *comp = s->img_n; + return out; +} +#endif + +// Targa Truevision - TGA +// by Jonathan Dummer +#ifndef STBI_NO_TGA +// returns STBI_rgb or whatever, 0 on error +static int stbi__tga_get_comp(int bits_per_pixel, int is_grey, int* is_rgb16) +{ + // only RGB or RGBA (incl. 16bit) or grey allowed + if (is_rgb16) *is_rgb16 = 0; + switch(bits_per_pixel) { + case 8: return STBI_grey; + case 16: if(is_grey) return STBI_grey_alpha; + // fallthrough + case 15: if(is_rgb16) *is_rgb16 = 1; + return STBI_rgb; + case 24: // fallthrough + case 32: return bits_per_pixel/8; + default: return 0; + } +} + +static int stbi__tga_info(stbi__context *s, int *x, int *y, int *comp) +{ + int tga_w, tga_h, tga_comp, tga_image_type, tga_bits_per_pixel, tga_colormap_bpp; + int sz, tga_colormap_type; + stbi__get8(s); // discard Offset + tga_colormap_type = stbi__get8(s); // colormap type + if( tga_colormap_type > 1 ) { + stbi__rewind(s); + return 0; // only RGB or indexed allowed + } + tga_image_type = stbi__get8(s); // image type + if ( tga_colormap_type == 1 ) { // colormapped (paletted) image + if (tga_image_type != 1 && tga_image_type != 9) { + stbi__rewind(s); + return 0; + } + stbi__skip(s,4); // skip index of first colormap entry and number of entries + sz = stbi__get8(s); // check bits per palette color entry + if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) { + stbi__rewind(s); + return 0; + } + stbi__skip(s,4); // skip image x and y origin + tga_colormap_bpp = sz; + } else { // "normal" image w/o colormap - only RGB or grey allowed, +/- RLE + if ( (tga_image_type != 2) && (tga_image_type != 3) && (tga_image_type != 10) && (tga_image_type != 11) ) { + stbi__rewind(s); + return 0; // only RGB or grey allowed, +/- RLE + } + stbi__skip(s,9); // skip colormap specification and image x/y origin + tga_colormap_bpp = 0; + } + tga_w = stbi__get16le(s); + if( tga_w < 1 ) { + stbi__rewind(s); + return 0; // test width + } + tga_h = stbi__get16le(s); + if( tga_h < 1 ) { + stbi__rewind(s); + return 0; // test height + } + tga_bits_per_pixel = stbi__get8(s); // bits per pixel + stbi__get8(s); // ignore alpha bits + if (tga_colormap_bpp != 0) { + if((tga_bits_per_pixel != 8) && (tga_bits_per_pixel != 16)) { + // when using a colormap, tga_bits_per_pixel is the size of the indexes + // I don't think anything but 8 or 16bit indexes makes sense + stbi__rewind(s); + return 0; + } + tga_comp = stbi__tga_get_comp(tga_colormap_bpp, 0, NULL); + } else { + tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3) || (tga_image_type == 11), NULL); + } + if(!tga_comp) { + stbi__rewind(s); + return 0; + } + if (x) *x = tga_w; + if (y) *y = tga_h; + if (comp) *comp = tga_comp; + return 1; // seems to have passed everything +} + +static int stbi__tga_test(stbi__context *s) +{ + int res = 0; + int sz, tga_color_type; + stbi__get8(s); // discard Offset + tga_color_type = stbi__get8(s); // color type + if ( tga_color_type > 1 ) goto errorEnd; // only RGB or indexed allowed + sz = stbi__get8(s); // image type + if ( tga_color_type == 1 ) { // colormapped (paletted) image + if (sz != 1 && sz != 9) goto errorEnd; // colortype 1 demands image type 1 or 9 + stbi__skip(s,4); // skip index of first colormap entry and number of entries + sz = stbi__get8(s); // check bits per palette color entry + if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) goto errorEnd; + stbi__skip(s,4); // skip image x and y origin + } else { // "normal" image w/o colormap + if ( (sz != 2) && (sz != 3) && (sz != 10) && (sz != 11) ) goto errorEnd; // only RGB or grey allowed, +/- RLE + stbi__skip(s,9); // skip colormap specification and image x/y origin + } + if ( stbi__get16le(s) < 1 ) goto errorEnd; // test width + if ( stbi__get16le(s) < 1 ) goto errorEnd; // test height + sz = stbi__get8(s); // bits per pixel + if ( (tga_color_type == 1) && (sz != 8) && (sz != 16) ) goto errorEnd; // for colormapped images, bpp is size of an index + if ( (sz != 8) && (sz != 15) && (sz != 16) && (sz != 24) && (sz != 32) ) goto errorEnd; + + res = 1; // if we got this far, everything's good and we can return 1 instead of 0 + +errorEnd: + stbi__rewind(s); + return res; +} + +// read 16bit value and convert to 24bit RGB +static void stbi__tga_read_rgb16(stbi__context *s, stbi_uc* out) +{ + stbi__uint16 px = (stbi__uint16)stbi__get16le(s); + stbi__uint16 fiveBitMask = 31; + // we have 3 channels with 5bits each + int r = (px >> 10) & fiveBitMask; + int g = (px >> 5) & fiveBitMask; + int b = px & fiveBitMask; + // Note that this saves the data in RGB(A) order, so it doesn't need to be swapped later + out[0] = (stbi_uc)((r * 255)/31); + out[1] = (stbi_uc)((g * 255)/31); + out[2] = (stbi_uc)((b * 255)/31); + + // some people claim that the most significant bit might be used for alpha + // (possibly if an alpha-bit is set in the "image descriptor byte") + // but that only made 16bit test images completely translucent.. + // so let's treat all 15 and 16bit TGAs as RGB with no alpha. +} + +static void *stbi__tga_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + // read in the TGA header stuff + int tga_offset = stbi__get8(s); + int tga_indexed = stbi__get8(s); + int tga_image_type = stbi__get8(s); + int tga_is_RLE = 0; + int tga_palette_start = stbi__get16le(s); + int tga_palette_len = stbi__get16le(s); + int tga_palette_bits = stbi__get8(s); + int tga_x_origin = stbi__get16le(s); + int tga_y_origin = stbi__get16le(s); + int tga_width = stbi__get16le(s); + int tga_height = stbi__get16le(s); + int tga_bits_per_pixel = stbi__get8(s); + int tga_comp, tga_rgb16=0; + int tga_inverted = stbi__get8(s); + // int tga_alpha_bits = tga_inverted & 15; // the 4 lowest bits - unused (useless?) + // image data + unsigned char *tga_data; + unsigned char *tga_palette = NULL; + int i, j; + unsigned char raw_data[4] = {0}; + int RLE_count = 0; + int RLE_repeating = 0; + int read_next_pixel = 1; + STBI_NOTUSED(ri); + STBI_NOTUSED(tga_x_origin); // @TODO + STBI_NOTUSED(tga_y_origin); // @TODO + + if (tga_height > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + if (tga_width > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + + // do a tiny bit of precessing + if ( tga_image_type >= 8 ) + { + tga_image_type -= 8; + tga_is_RLE = 1; + } + tga_inverted = 1 - ((tga_inverted >> 5) & 1); + + // If I'm paletted, then I'll use the number of bits from the palette + if ( tga_indexed ) tga_comp = stbi__tga_get_comp(tga_palette_bits, 0, &tga_rgb16); + else tga_comp = stbi__tga_get_comp(tga_bits_per_pixel, (tga_image_type == 3), &tga_rgb16); + + if(!tga_comp) // shouldn't really happen, stbi__tga_test() should have ensured basic consistency + return stbi__errpuc("bad format", "Can't find out TGA pixelformat"); + + // tga info + *x = tga_width; + *y = tga_height; + if (comp) *comp = tga_comp; + + if (!stbi__mad3sizes_valid(tga_width, tga_height, tga_comp, 0)) + return stbi__errpuc("too large", "Corrupt TGA"); + + tga_data = (unsigned char*)stbi__malloc_mad3(tga_width, tga_height, tga_comp, 0); + if (!tga_data) return stbi__errpuc("outofmem", "Out of memory"); + + // skip to the data's starting position (offset usually = 0) + stbi__skip(s, tga_offset ); + + if ( !tga_indexed && !tga_is_RLE && !tga_rgb16 ) { + for (i=0; i < tga_height; ++i) { + int row = tga_inverted ? tga_height -i - 1 : i; + stbi_uc *tga_row = tga_data + row*tga_width*tga_comp; + stbi__getn(s, tga_row, tga_width * tga_comp); + } + } else { + // do I need to load a palette? + if ( tga_indexed) + { + if (tga_palette_len == 0) { /* you have to have at least one entry! */ + STBI_FREE(tga_data); + return stbi__errpuc("bad palette", "Corrupt TGA"); + } + + // any data to skip? (offset usually = 0) + stbi__skip(s, tga_palette_start ); + // load the palette + tga_palette = (unsigned char*)stbi__malloc_mad2(tga_palette_len, tga_comp, 0); + if (!tga_palette) { + STBI_FREE(tga_data); + return stbi__errpuc("outofmem", "Out of memory"); + } + if (tga_rgb16) { + stbi_uc *pal_entry = tga_palette; + STBI_ASSERT(tga_comp == STBI_rgb); + for (i=0; i < tga_palette_len; ++i) { + stbi__tga_read_rgb16(s, pal_entry); + pal_entry += tga_comp; + } + } else if (!stbi__getn(s, tga_palette, tga_palette_len * tga_comp)) { + STBI_FREE(tga_data); + STBI_FREE(tga_palette); + return stbi__errpuc("bad palette", "Corrupt TGA"); + } + } + // load the data + for (i=0; i < tga_width * tga_height; ++i) + { + // if I'm in RLE mode, do I need to get a RLE stbi__pngchunk? + if ( tga_is_RLE ) + { + if ( RLE_count == 0 ) + { + // yep, get the next byte as a RLE command + int RLE_cmd = stbi__get8(s); + RLE_count = 1 + (RLE_cmd & 127); + RLE_repeating = RLE_cmd >> 7; + read_next_pixel = 1; + } else if ( !RLE_repeating ) + { + read_next_pixel = 1; + } + } else + { + read_next_pixel = 1; + } + // OK, if I need to read a pixel, do it now + if ( read_next_pixel ) + { + // load however much data we did have + if ( tga_indexed ) + { + // read in index, then perform the lookup + int pal_idx = (tga_bits_per_pixel == 8) ? stbi__get8(s) : stbi__get16le(s); + if ( pal_idx >= tga_palette_len ) { + // invalid index + pal_idx = 0; + } + pal_idx *= tga_comp; + for (j = 0; j < tga_comp; ++j) { + raw_data[j] = tga_palette[pal_idx+j]; + } + } else if(tga_rgb16) { + STBI_ASSERT(tga_comp == STBI_rgb); + stbi__tga_read_rgb16(s, raw_data); + } else { + // read in the data raw + for (j = 0; j < tga_comp; ++j) { + raw_data[j] = stbi__get8(s); + } + } + // clear the reading flag for the next pixel + read_next_pixel = 0; + } // end of reading a pixel + + // copy data + for (j = 0; j < tga_comp; ++j) + tga_data[i*tga_comp+j] = raw_data[j]; + + // in case we're in RLE mode, keep counting down + --RLE_count; + } + // do I need to invert the image? + if ( tga_inverted ) + { + for (j = 0; j*2 < tga_height; ++j) + { + int index1 = j * tga_width * tga_comp; + int index2 = (tga_height - 1 - j) * tga_width * tga_comp; + for (i = tga_width * tga_comp; i > 0; --i) + { + unsigned char temp = tga_data[index1]; + tga_data[index1] = tga_data[index2]; + tga_data[index2] = temp; + ++index1; + ++index2; + } + } + } + // clear my palette, if I had one + if ( tga_palette != NULL ) + { + STBI_FREE( tga_palette ); + } + } + + // swap RGB - if the source data was RGB16, it already is in the right order + if (tga_comp >= 3 && !tga_rgb16) + { + unsigned char* tga_pixel = tga_data; + for (i=0; i < tga_width * tga_height; ++i) + { + unsigned char temp = tga_pixel[0]; + tga_pixel[0] = tga_pixel[2]; + tga_pixel[2] = temp; + tga_pixel += tga_comp; + } + } + + // convert to target component count + if (req_comp && req_comp != tga_comp) + tga_data = stbi__convert_format(tga_data, tga_comp, req_comp, tga_width, tga_height); + + // the things I do to get rid of an error message, and yet keep + // Microsoft's C compilers happy... [8^( + tga_palette_start = tga_palette_len = tga_palette_bits = + tga_x_origin = tga_y_origin = 0; + STBI_NOTUSED(tga_palette_start); + // OK, done + return tga_data; +} +#endif + +// ************************************************************************************************* +// Photoshop PSD loader -- PD by Thatcher Ulrich, integration by Nicolas Schulz, tweaked by STB + +#ifndef STBI_NO_PSD +static int stbi__psd_test(stbi__context *s) +{ + int r = (stbi__get32be(s) == 0x38425053); + stbi__rewind(s); + return r; +} + +static int stbi__psd_decode_rle(stbi__context *s, stbi_uc *p, int pixelCount) +{ + int count, nleft, len; + + count = 0; + while ((nleft = pixelCount - count) > 0) { + len = stbi__get8(s); + if (len == 128) { + // No-op. + } else if (len < 128) { + // Copy next len+1 bytes literally. + len++; + if (len > nleft) return 0; // corrupt data + count += len; + while (len) { + *p = stbi__get8(s); + p += 4; + len--; + } + } else if (len > 128) { + stbi_uc val; + // Next -len+1 bytes in the dest are replicated from next source byte. + // (Interpret len as a negative 8-bit int.) + len = 257 - len; + if (len > nleft) return 0; // corrupt data + val = stbi__get8(s); + count += len; + while (len) { + *p = val; + p += 4; + len--; + } + } + } + + return 1; +} + +static void *stbi__psd_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri, int bpc) +{ + int pixelCount; + int channelCount, compression; + int channel, i; + int bitdepth; + int w,h; + stbi_uc *out; + STBI_NOTUSED(ri); + + // Check identifier + if (stbi__get32be(s) != 0x38425053) // "8BPS" + return stbi__errpuc("not PSD", "Corrupt PSD image"); + + // Check file type version. + if (stbi__get16be(s) != 1) + return stbi__errpuc("wrong version", "Unsupported version of PSD image"); + + // Skip 6 reserved bytes. + stbi__skip(s, 6 ); + + // Read the number of channels (R, G, B, A, etc). + channelCount = stbi__get16be(s); + if (channelCount < 0 || channelCount > 16) + return stbi__errpuc("wrong channel count", "Unsupported number of channels in PSD image"); + + // Read the rows and columns of the image. + h = stbi__get32be(s); + w = stbi__get32be(s); + + if (h > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + if (w > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + + // Make sure the depth is 8 bits. + bitdepth = stbi__get16be(s); + if (bitdepth != 8 && bitdepth != 16) + return stbi__errpuc("unsupported bit depth", "PSD bit depth is not 8 or 16 bit"); + + // Make sure the color mode is RGB. + // Valid options are: + // 0: Bitmap + // 1: Grayscale + // 2: Indexed color + // 3: RGB color + // 4: CMYK color + // 7: Multichannel + // 8: Duotone + // 9: Lab color + if (stbi__get16be(s) != 3) + return stbi__errpuc("wrong color format", "PSD is not in RGB color format"); + + // Skip the Mode Data. (It's the palette for indexed color; other info for other modes.) + stbi__skip(s,stbi__get32be(s) ); + + // Skip the image resources. (resolution, pen tool paths, etc) + stbi__skip(s, stbi__get32be(s) ); + + // Skip the reserved data. + stbi__skip(s, stbi__get32be(s) ); + + // Find out if the data is compressed. + // Known values: + // 0: no compression + // 1: RLE compressed + compression = stbi__get16be(s); + if (compression > 1) + return stbi__errpuc("bad compression", "PSD has an unknown compression format"); + + // Check size + if (!stbi__mad3sizes_valid(4, w, h, 0)) + return stbi__errpuc("too large", "Corrupt PSD"); + + // Create the destination image. + + if (!compression && bitdepth == 16 && bpc == 16) { + out = (stbi_uc *) stbi__malloc_mad3(8, w, h, 0); + ri->bits_per_channel = 16; + } else + out = (stbi_uc *) stbi__malloc(4 * w*h); + + if (!out) return stbi__errpuc("outofmem", "Out of memory"); + pixelCount = w*h; + + // Initialize the data to zero. + //memset( out, 0, pixelCount * 4 ); + + // Finally, the image data. + if (compression) { + // RLE as used by .PSD and .TIFF + // Loop until you get the number of unpacked bytes you are expecting: + // Read the next source byte into n. + // If n is between 0 and 127 inclusive, copy the next n+1 bytes literally. + // Else if n is between -127 and -1 inclusive, copy the next byte -n+1 times. + // Else if n is 128, noop. + // Endloop + + // The RLE-compressed data is preceded by a 2-byte data count for each row in the data, + // which we're going to just skip. + stbi__skip(s, h * channelCount * 2 ); + + // Read the RLE data by channel. + for (channel = 0; channel < 4; channel++) { + stbi_uc *p; + + p = out+channel; + if (channel >= channelCount) { + // Fill this channel with default data. + for (i = 0; i < pixelCount; i++, p += 4) + *p = (channel == 3 ? 255 : 0); + } else { + // Read the RLE data. + if (!stbi__psd_decode_rle(s, p, pixelCount)) { + STBI_FREE(out); + return stbi__errpuc("corrupt", "bad RLE data"); + } + } + } + + } else { + // We're at the raw image data. It's each channel in order (Red, Green, Blue, Alpha, ...) + // where each channel consists of an 8-bit (or 16-bit) value for each pixel in the image. + + // Read the data by channel. + for (channel = 0; channel < 4; channel++) { + if (channel >= channelCount) { + // Fill this channel with default data. + if (bitdepth == 16 && bpc == 16) { + stbi__uint16 *q = ((stbi__uint16 *) out) + channel; + stbi__uint16 val = channel == 3 ? 65535 : 0; + for (i = 0; i < pixelCount; i++, q += 4) + *q = val; + } else { + stbi_uc *p = out+channel; + stbi_uc val = channel == 3 ? 255 : 0; + for (i = 0; i < pixelCount; i++, p += 4) + *p = val; + } + } else { + if (ri->bits_per_channel == 16) { // output bpc + stbi__uint16 *q = ((stbi__uint16 *) out) + channel; + for (i = 0; i < pixelCount; i++, q += 4) + *q = (stbi__uint16) stbi__get16be(s); + } else { + stbi_uc *p = out+channel; + if (bitdepth == 16) { // input bpc + for (i = 0; i < pixelCount; i++, p += 4) + *p = (stbi_uc) (stbi__get16be(s) >> 8); + } else { + for (i = 0; i < pixelCount; i++, p += 4) + *p = stbi__get8(s); + } + } + } + } + } + + // remove weird white matte from PSD + if (channelCount >= 4) { + if (ri->bits_per_channel == 16) { + for (i=0; i < w*h; ++i) { + stbi__uint16 *pixel = (stbi__uint16 *) out + 4*i; + if (pixel[3] != 0 && pixel[3] != 65535) { + float a = pixel[3] / 65535.0f; + float ra = 1.0f / a; + float inv_a = 65535.0f * (1 - ra); + pixel[0] = (stbi__uint16) (pixel[0]*ra + inv_a); + pixel[1] = (stbi__uint16) (pixel[1]*ra + inv_a); + pixel[2] = (stbi__uint16) (pixel[2]*ra + inv_a); + } + } + } else { + for (i=0; i < w*h; ++i) { + unsigned char *pixel = out + 4*i; + if (pixel[3] != 0 && pixel[3] != 255) { + float a = pixel[3] / 255.0f; + float ra = 1.0f / a; + float inv_a = 255.0f * (1 - ra); + pixel[0] = (unsigned char) (pixel[0]*ra + inv_a); + pixel[1] = (unsigned char) (pixel[1]*ra + inv_a); + pixel[2] = (unsigned char) (pixel[2]*ra + inv_a); + } + } + } + } + + // convert to desired output format + if (req_comp && req_comp != 4) { + if (ri->bits_per_channel == 16) + out = (stbi_uc *) stbi__convert_format16((stbi__uint16 *) out, 4, req_comp, w, h); + else + out = stbi__convert_format(out, 4, req_comp, w, h); + if (out == NULL) return out; // stbi__convert_format frees input on failure + } + + if (comp) *comp = 4; + *y = h; + *x = w; + + return out; +} +#endif + +// ************************************************************************************************* +// Softimage PIC loader +// by Tom Seddon +// +// See http://softimage.wiki.softimage.com/index.php/INFO:_PIC_file_format +// See http://ozviz.wasp.uwa.edu.au/~pbourke/dataformats/softimagepic/ + +#ifndef STBI_NO_PIC +static int stbi__pic_is4(stbi__context *s,const char *str) +{ + int i; + for (i=0; i<4; ++i) + if (stbi__get8(s) != (stbi_uc)str[i]) + return 0; + + return 1; +} + +static int stbi__pic_test_core(stbi__context *s) +{ + int i; + + if (!stbi__pic_is4(s,"\x53\x80\xF6\x34")) + return 0; + + for(i=0;i<84;++i) + stbi__get8(s); + + if (!stbi__pic_is4(s,"PICT")) + return 0; + + return 1; +} + +typedef struct +{ + stbi_uc size,type,channel; +} stbi__pic_packet; + +static stbi_uc *stbi__readval(stbi__context *s, int channel, stbi_uc *dest) +{ + int mask=0x80, i; + + for (i=0; i<4; ++i, mask>>=1) { + if (channel & mask) { + if (stbi__at_eof(s)) return stbi__errpuc("bad file","PIC file too short"); + dest[i]=stbi__get8(s); + } + } + + return dest; +} + +static void stbi__copyval(int channel,stbi_uc *dest,const stbi_uc *src) +{ + int mask=0x80,i; + + for (i=0;i<4; ++i, mask>>=1) + if (channel&mask) + dest[i]=src[i]; +} + +static stbi_uc *stbi__pic_load_core(stbi__context *s,int width,int height,int *comp, stbi_uc *result) +{ + int act_comp=0,num_packets=0,y,chained; + stbi__pic_packet packets[10]; + + // this will (should...) cater for even some bizarre stuff like having data + // for the same channel in multiple packets. + do { + stbi__pic_packet *packet; + + if (num_packets==sizeof(packets)/sizeof(packets[0])) + return stbi__errpuc("bad format","too many packets"); + + packet = &packets[num_packets++]; + + chained = stbi__get8(s); + packet->size = stbi__get8(s); + packet->type = stbi__get8(s); + packet->channel = stbi__get8(s); + + act_comp |= packet->channel; + + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (reading packets)"); + if (packet->size != 8) return stbi__errpuc("bad format","packet isn't 8bpp"); + } while (chained); + + *comp = (act_comp & 0x10 ? 4 : 3); // has alpha channel? + + for(y=0; ytype) { + default: + return stbi__errpuc("bad format","packet has bad compression type"); + + case 0: {//uncompressed + int x; + + for(x=0;xchannel,dest)) + return 0; + break; + } + + case 1://Pure RLE + { + int left=width, i; + + while (left>0) { + stbi_uc count,value[4]; + + count=stbi__get8(s); + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (pure read count)"); + + if (count > left) + count = (stbi_uc) left; + + if (!stbi__readval(s,packet->channel,value)) return 0; + + for(i=0; ichannel,dest,value); + left -= count; + } + } + break; + + case 2: {//Mixed RLE + int left=width; + while (left>0) { + int count = stbi__get8(s), i; + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (mixed read count)"); + + if (count >= 128) { // Repeated + stbi_uc value[4]; + + if (count==128) + count = stbi__get16be(s); + else + count -= 127; + if (count > left) + return stbi__errpuc("bad file","scanline overrun"); + + if (!stbi__readval(s,packet->channel,value)) + return 0; + + for(i=0;ichannel,dest,value); + } else { // Raw + ++count; + if (count>left) return stbi__errpuc("bad file","scanline overrun"); + + for(i=0;ichannel,dest)) + return 0; + } + left-=count; + } + break; + } + } + } + } + + return result; +} + +static void *stbi__pic_load(stbi__context *s,int *px,int *py,int *comp,int req_comp, stbi__result_info *ri) +{ + stbi_uc *result; + int i, x,y, internal_comp; + STBI_NOTUSED(ri); + + if (!comp) comp = &internal_comp; + + for (i=0; i<92; ++i) + stbi__get8(s); + + x = stbi__get16be(s); + y = stbi__get16be(s); + + if (y > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + if (x > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + + if (stbi__at_eof(s)) return stbi__errpuc("bad file","file too short (pic header)"); + if (!stbi__mad3sizes_valid(x, y, 4, 0)) return stbi__errpuc("too large", "PIC image too large to decode"); + + stbi__get32be(s); //skip `ratio' + stbi__get16be(s); //skip `fields' + stbi__get16be(s); //skip `pad' + + // intermediate buffer is RGBA + result = (stbi_uc *) stbi__malloc_mad3(x, y, 4, 0); + memset(result, 0xff, x*y*4); + + if (!stbi__pic_load_core(s,x,y,comp, result)) { + STBI_FREE(result); + result=0; + } + *px = x; + *py = y; + if (req_comp == 0) req_comp = *comp; + result=stbi__convert_format(result,4,req_comp,x,y); + + return result; +} + +static int stbi__pic_test(stbi__context *s) +{ + int r = stbi__pic_test_core(s); + stbi__rewind(s); + return r; +} +#endif + +// ************************************************************************************************* +// GIF loader -- public domain by Jean-Marc Lienher -- simplified/shrunk by stb + +#ifndef STBI_NO_GIF +typedef struct +{ + stbi__int16 prefix; + stbi_uc first; + stbi_uc suffix; +} stbi__gif_lzw; + +typedef struct +{ + int w,h; + stbi_uc *out; // output buffer (always 4 components) + stbi_uc *background; // The current "background" as far as a gif is concerned + stbi_uc *history; + int flags, bgindex, ratio, transparent, eflags; + stbi_uc pal[256][4]; + stbi_uc lpal[256][4]; + stbi__gif_lzw codes[8192]; + stbi_uc *color_table; + int parse, step; + int lflags; + int start_x, start_y; + int max_x, max_y; + int cur_x, cur_y; + int line_size; + int delay; +} stbi__gif; + +static int stbi__gif_test_raw(stbi__context *s) +{ + int sz; + if (stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8') return 0; + sz = stbi__get8(s); + if (sz != '9' && sz != '7') return 0; + if (stbi__get8(s) != 'a') return 0; + return 1; +} + +static int stbi__gif_test(stbi__context *s) +{ + int r = stbi__gif_test_raw(s); + stbi__rewind(s); + return r; +} + +static void stbi__gif_parse_colortable(stbi__context *s, stbi_uc pal[256][4], int num_entries, int transp) +{ + int i; + for (i=0; i < num_entries; ++i) { + pal[i][2] = stbi__get8(s); + pal[i][1] = stbi__get8(s); + pal[i][0] = stbi__get8(s); + pal[i][3] = transp == i ? 0 : 255; + } +} + +static int stbi__gif_header(stbi__context *s, stbi__gif *g, int *comp, int is_info) +{ + stbi_uc version; + if (stbi__get8(s) != 'G' || stbi__get8(s) != 'I' || stbi__get8(s) != 'F' || stbi__get8(s) != '8') + return stbi__err("not GIF", "Corrupt GIF"); + + version = stbi__get8(s); + if (version != '7' && version != '9') return stbi__err("not GIF", "Corrupt GIF"); + if (stbi__get8(s) != 'a') return stbi__err("not GIF", "Corrupt GIF"); + + stbi__g_failure_reason = ""; + g->w = stbi__get16le(s); + g->h = stbi__get16le(s); + g->flags = stbi__get8(s); + g->bgindex = stbi__get8(s); + g->ratio = stbi__get8(s); + g->transparent = -1; + + if (g->w > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + if (g->h > STBI_MAX_DIMENSIONS) return stbi__err("too large","Very large image (corrupt?)"); + + if (comp != 0) *comp = 4; // can't actually tell whether it's 3 or 4 until we parse the comments + + if (is_info) return 1; + + if (g->flags & 0x80) + stbi__gif_parse_colortable(s,g->pal, 2 << (g->flags & 7), -1); + + return 1; +} + +static int stbi__gif_info_raw(stbi__context *s, int *x, int *y, int *comp) +{ + stbi__gif* g = (stbi__gif*) stbi__malloc(sizeof(stbi__gif)); + if (!stbi__gif_header(s, g, comp, 1)) { + STBI_FREE(g); + stbi__rewind( s ); + return 0; + } + if (x) *x = g->w; + if (y) *y = g->h; + STBI_FREE(g); + return 1; +} + +static void stbi__out_gif_code(stbi__gif *g, stbi__uint16 code) +{ + stbi_uc *p, *c; + int idx; + + // recurse to decode the prefixes, since the linked-list is backwards, + // and working backwards through an interleaved image would be nasty + if (g->codes[code].prefix >= 0) + stbi__out_gif_code(g, g->codes[code].prefix); + + if (g->cur_y >= g->max_y) return; + + idx = g->cur_x + g->cur_y; + p = &g->out[idx]; + g->history[idx / 4] = 1; + + c = &g->color_table[g->codes[code].suffix * 4]; + if (c[3] > 128) { // don't render transparent pixels; + p[0] = c[2]; + p[1] = c[1]; + p[2] = c[0]; + p[3] = c[3]; + } + g->cur_x += 4; + + if (g->cur_x >= g->max_x) { + g->cur_x = g->start_x; + g->cur_y += g->step; + + while (g->cur_y >= g->max_y && g->parse > 0) { + g->step = (1 << g->parse) * g->line_size; + g->cur_y = g->start_y + (g->step >> 1); + --g->parse; + } + } +} + +static stbi_uc *stbi__process_gif_raster(stbi__context *s, stbi__gif *g) +{ + stbi_uc lzw_cs; + stbi__int32 len, init_code; + stbi__uint32 first; + stbi__int32 codesize, codemask, avail, oldcode, bits, valid_bits, clear; + stbi__gif_lzw *p; + + lzw_cs = stbi__get8(s); + if (lzw_cs > 12) return NULL; + clear = 1 << lzw_cs; + first = 1; + codesize = lzw_cs + 1; + codemask = (1 << codesize) - 1; + bits = 0; + valid_bits = 0; + for (init_code = 0; init_code < clear; init_code++) { + g->codes[init_code].prefix = -1; + g->codes[init_code].first = (stbi_uc) init_code; + g->codes[init_code].suffix = (stbi_uc) init_code; + } + + // support no starting clear code + avail = clear+2; + oldcode = -1; + + len = 0; + for(;;) { + if (valid_bits < codesize) { + if (len == 0) { + len = stbi__get8(s); // start new block + if (len == 0) + return g->out; + } + --len; + bits |= (stbi__int32) stbi__get8(s) << valid_bits; + valid_bits += 8; + } else { + stbi__int32 code = bits & codemask; + bits >>= codesize; + valid_bits -= codesize; + // @OPTIMIZE: is there some way we can accelerate the non-clear path? + if (code == clear) { // clear code + codesize = lzw_cs + 1; + codemask = (1 << codesize) - 1; + avail = clear + 2; + oldcode = -1; + first = 0; + } else if (code == clear + 1) { // end of stream code + stbi__skip(s, len); + while ((len = stbi__get8(s)) > 0) + stbi__skip(s,len); + return g->out; + } else if (code <= avail) { + if (first) { + return stbi__errpuc("no clear code", "Corrupt GIF"); + } + + if (oldcode >= 0) { + p = &g->codes[avail++]; + if (avail > 8192) { + return stbi__errpuc("too many codes", "Corrupt GIF"); + } + + p->prefix = (stbi__int16) oldcode; + p->first = g->codes[oldcode].first; + p->suffix = (code == avail) ? p->first : g->codes[code].first; + } else if (code == avail) + return stbi__errpuc("illegal code in raster", "Corrupt GIF"); + + stbi__out_gif_code(g, (stbi__uint16) code); + + if ((avail & codemask) == 0 && avail <= 0x0FFF) { + codesize++; + codemask = (1 << codesize) - 1; + } + + oldcode = code; + } else { + return stbi__errpuc("illegal code in raster", "Corrupt GIF"); + } + } + } +} + +// this function is designed to support animated gifs, although stb_image doesn't support it +// two back is the image from two frames ago, used for a very specific disposal format +static stbi_uc *stbi__gif_load_next(stbi__context *s, stbi__gif *g, int *comp, int req_comp, stbi_uc *two_back) +{ + int dispose; + int first_frame; + int pi; + int pcount; + STBI_NOTUSED(req_comp); + + // on first frame, any non-written pixels get the background colour (non-transparent) + first_frame = 0; + if (g->out == 0) { + if (!stbi__gif_header(s, g, comp,0)) return 0; // stbi__g_failure_reason set by stbi__gif_header + if (!stbi__mad3sizes_valid(4, g->w, g->h, 0)) + return stbi__errpuc("too large", "GIF image is too large"); + pcount = g->w * g->h; + g->out = (stbi_uc *) stbi__malloc(4 * pcount); + g->background = (stbi_uc *) stbi__malloc(4 * pcount); + g->history = (stbi_uc *) stbi__malloc(pcount); + if (!g->out || !g->background || !g->history) + return stbi__errpuc("outofmem", "Out of memory"); + + // image is treated as "transparent" at the start - ie, nothing overwrites the current background; + // background colour is only used for pixels that are not rendered first frame, after that "background" + // color refers to the color that was there the previous frame. + memset(g->out, 0x00, 4 * pcount); + memset(g->background, 0x00, 4 * pcount); // state of the background (starts transparent) + memset(g->history, 0x00, pcount); // pixels that were affected previous frame + first_frame = 1; + } else { + // second frame - how do we dispose of the previous one? + dispose = (g->eflags & 0x1C) >> 2; + pcount = g->w * g->h; + + if ((dispose == 3) && (two_back == 0)) { + dispose = 2; // if I don't have an image to revert back to, default to the old background + } + + if (dispose == 3) { // use previous graphic + for (pi = 0; pi < pcount; ++pi) { + if (g->history[pi]) { + memcpy( &g->out[pi * 4], &two_back[pi * 4], 4 ); + } + } + } else if (dispose == 2) { + // restore what was changed last frame to background before that frame; + for (pi = 0; pi < pcount; ++pi) { + if (g->history[pi]) { + memcpy( &g->out[pi * 4], &g->background[pi * 4], 4 ); + } + } + } else { + // This is a non-disposal case eithe way, so just + // leave the pixels as is, and they will become the new background + // 1: do not dispose + // 0: not specified. + } + + // background is what out is after the undoing of the previou frame; + memcpy( g->background, g->out, 4 * g->w * g->h ); + } + + // clear my history; + memset( g->history, 0x00, g->w * g->h ); // pixels that were affected previous frame + + for (;;) { + int tag = stbi__get8(s); + switch (tag) { + case 0x2C: /* Image Descriptor */ + { + stbi__int32 x, y, w, h; + stbi_uc *o; + + x = stbi__get16le(s); + y = stbi__get16le(s); + w = stbi__get16le(s); + h = stbi__get16le(s); + if (((x + w) > (g->w)) || ((y + h) > (g->h))) + return stbi__errpuc("bad Image Descriptor", "Corrupt GIF"); + + g->line_size = g->w * 4; + g->start_x = x * 4; + g->start_y = y * g->line_size; + g->max_x = g->start_x + w * 4; + g->max_y = g->start_y + h * g->line_size; + g->cur_x = g->start_x; + g->cur_y = g->start_y; + + // if the width of the specified rectangle is 0, that means + // we may not see *any* pixels or the image is malformed; + // to make sure this is caught, move the current y down to + // max_y (which is what out_gif_code checks). + if (w == 0) + g->cur_y = g->max_y; + + g->lflags = stbi__get8(s); + + if (g->lflags & 0x40) { + g->step = 8 * g->line_size; // first interlaced spacing + g->parse = 3; + } else { + g->step = g->line_size; + g->parse = 0; + } + + if (g->lflags & 0x80) { + stbi__gif_parse_colortable(s,g->lpal, 2 << (g->lflags & 7), g->eflags & 0x01 ? g->transparent : -1); + g->color_table = (stbi_uc *) g->lpal; + } else if (g->flags & 0x80) { + g->color_table = (stbi_uc *) g->pal; + } else + return stbi__errpuc("missing color table", "Corrupt GIF"); + + o = stbi__process_gif_raster(s, g); + if (!o) return NULL; + + // if this was the first frame, + pcount = g->w * g->h; + if (first_frame && (g->bgindex > 0)) { + // if first frame, any pixel not drawn to gets the background color + for (pi = 0; pi < pcount; ++pi) { + if (g->history[pi] == 0) { + g->pal[g->bgindex][3] = 255; // just in case it was made transparent, undo that; It will be reset next frame if need be; + memcpy( &g->out[pi * 4], &g->pal[g->bgindex], 4 ); + } + } + } + + return o; + } + + case 0x21: // Comment Extension. + { + int len; + int ext = stbi__get8(s); + if (ext == 0xF9) { // Graphic Control Extension. + len = stbi__get8(s); + if (len == 4) { + g->eflags = stbi__get8(s); + g->delay = 10 * stbi__get16le(s); // delay - 1/100th of a second, saving as 1/1000ths. + + // unset old transparent + if (g->transparent >= 0) { + g->pal[g->transparent][3] = 255; + } + if (g->eflags & 0x01) { + g->transparent = stbi__get8(s); + if (g->transparent >= 0) { + g->pal[g->transparent][3] = 0; + } + } else { + // don't need transparent + stbi__skip(s, 1); + g->transparent = -1; + } + } else { + stbi__skip(s, len); + break; + } + } + while ((len = stbi__get8(s)) != 0) { + stbi__skip(s, len); + } + break; + } + + case 0x3B: // gif stream termination code + return (stbi_uc *) s; // using '1' causes warning on some compilers + + default: + return stbi__errpuc("unknown code", "Corrupt GIF"); + } + } +} + +static void *stbi__load_gif_main(stbi__context *s, int **delays, int *x, int *y, int *z, int *comp, int req_comp) +{ + if (stbi__gif_test(s)) { + int layers = 0; + stbi_uc *u = 0; + stbi_uc *out = 0; + stbi_uc *two_back = 0; + stbi__gif g; + int stride; + int out_size = 0; + int delays_size = 0; + memset(&g, 0, sizeof(g)); + if (delays) { + *delays = 0; + } + + do { + u = stbi__gif_load_next(s, &g, comp, req_comp, two_back); + if (u == (stbi_uc *) s) u = 0; // end of animated gif marker + + if (u) { + *x = g.w; + *y = g.h; + ++layers; + stride = g.w * g.h * 4; + + if (out) { + void *tmp = (stbi_uc*) STBI_REALLOC_SIZED( out, out_size, layers * stride ); + if (NULL == tmp) { + STBI_FREE(g.out); + STBI_FREE(g.history); + STBI_FREE(g.background); + return stbi__errpuc("outofmem", "Out of memory"); + } + else { + out = (stbi_uc*) tmp; + out_size = layers * stride; + } + + if (delays) { + *delays = (int*) STBI_REALLOC_SIZED( *delays, delays_size, sizeof(int) * layers ); + delays_size = layers * sizeof(int); + } + } else { + out = (stbi_uc*)stbi__malloc( layers * stride ); + out_size = layers * stride; + if (delays) { + *delays = (int*) stbi__malloc( layers * sizeof(int) ); + delays_size = layers * sizeof(int); + } + } + memcpy( out + ((layers - 1) * stride), u, stride ); + if (layers >= 2) { + two_back = out - 2 * stride; + } + + if (delays) { + (*delays)[layers - 1U] = g.delay; + } + } + } while (u != 0); + + // free temp buffer; + STBI_FREE(g.out); + STBI_FREE(g.history); + STBI_FREE(g.background); + + // do the final conversion after loading everything; + if (req_comp && req_comp != 4) + out = stbi__convert_format(out, 4, req_comp, layers * g.w, g.h); + + *z = layers; + return out; + } else { + return stbi__errpuc("not GIF", "Image was not as a gif type."); + } +} + +static void *stbi__gif_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi_uc *u = 0; + stbi__gif g; + memset(&g, 0, sizeof(g)); + STBI_NOTUSED(ri); + + u = stbi__gif_load_next(s, &g, comp, req_comp, 0); + if (u == (stbi_uc *) s) u = 0; // end of animated gif marker + if (u) { + *x = g.w; + *y = g.h; + + // moved conversion to after successful load so that the same + // can be done for multiple frames. + if (req_comp && req_comp != 4) + u = stbi__convert_format(u, 4, req_comp, g.w, g.h); + } else if (g.out) { + // if there was an error and we allocated an image buffer, free it! + STBI_FREE(g.out); + } + + // free buffers needed for multiple frame loading; + STBI_FREE(g.history); + STBI_FREE(g.background); + + return u; +} + +static int stbi__gif_info(stbi__context *s, int *x, int *y, int *comp) +{ + return stbi__gif_info_raw(s,x,y,comp); +} +#endif + +// ************************************************************************************************* +// Radiance RGBE HDR loader +// originally by Nicolas Schulz +#ifndef STBI_NO_HDR +static int stbi__hdr_test_core(stbi__context *s, const char *signature) +{ + int i; + for (i=0; signature[i]; ++i) + if (stbi__get8(s) != signature[i]) + return 0; + stbi__rewind(s); + return 1; +} + +static int stbi__hdr_test(stbi__context* s) +{ + int r = stbi__hdr_test_core(s, "#?RADIANCE\n"); + stbi__rewind(s); + if(!r) { + r = stbi__hdr_test_core(s, "#?RGBE\n"); + stbi__rewind(s); + } + return r; +} + +#define STBI__HDR_BUFLEN 1024 +static char *stbi__hdr_gettoken(stbi__context *z, char *buffer) +{ + int len=0; + char c = '\0'; + + c = (char) stbi__get8(z); + + while (!stbi__at_eof(z) && c != '\n') { + buffer[len++] = c; + if (len == STBI__HDR_BUFLEN-1) { + // flush to end of line + while (!stbi__at_eof(z) && stbi__get8(z) != '\n') + ; + break; + } + c = (char) stbi__get8(z); + } + + buffer[len] = 0; + return buffer; +} + +static void stbi__hdr_convert(float *output, stbi_uc *input, int req_comp) +{ + if ( input[3] != 0 ) { + float f1; + // Exponent + f1 = (float) ldexp(1.0f, input[3] - (int)(128 + 8)); + if (req_comp <= 2) + output[0] = (input[0] + input[1] + input[2]) * f1 / 3; + else { + output[0] = input[0] * f1; + output[1] = input[1] * f1; + output[2] = input[2] * f1; + } + if (req_comp == 2) output[1] = 1; + if (req_comp == 4) output[3] = 1; + } else { + switch (req_comp) { + case 4: output[3] = 1; /* fallthrough */ + case 3: output[0] = output[1] = output[2] = 0; + break; + case 2: output[1] = 1; /* fallthrough */ + case 1: output[0] = 0; + break; + } + } +} + +static float *stbi__hdr_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + char buffer[STBI__HDR_BUFLEN]; + char *token; + int valid = 0; + int width, height; + stbi_uc *scanline; + float *hdr_data; + int len; + unsigned char count, value; + int i, j, k, c1,c2, z; + const char *headerToken; + STBI_NOTUSED(ri); + + // Check identifier + headerToken = stbi__hdr_gettoken(s,buffer); + if (strcmp(headerToken, "#?RADIANCE") != 0 && strcmp(headerToken, "#?RGBE") != 0) + return stbi__errpf("not HDR", "Corrupt HDR image"); + + // Parse header + for(;;) { + token = stbi__hdr_gettoken(s,buffer); + if (token[0] == 0) break; + if (strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1; + } + + if (!valid) return stbi__errpf("unsupported format", "Unsupported HDR format"); + + // Parse width and height + // can't use sscanf() if we're not using stdio! + token = stbi__hdr_gettoken(s,buffer); + if (strncmp(token, "-Y ", 3)) return stbi__errpf("unsupported data layout", "Unsupported HDR format"); + token += 3; + height = (int) strtol(token, &token, 10); + while (*token == ' ') ++token; + if (strncmp(token, "+X ", 3)) return stbi__errpf("unsupported data layout", "Unsupported HDR format"); + token += 3; + width = (int) strtol(token, NULL, 10); + + if (height > STBI_MAX_DIMENSIONS) return stbi__errpf("too large","Very large image (corrupt?)"); + if (width > STBI_MAX_DIMENSIONS) return stbi__errpf("too large","Very large image (corrupt?)"); + + *x = width; + *y = height; + + if (comp) *comp = 3; + if (req_comp == 0) req_comp = 3; + + if (!stbi__mad4sizes_valid(width, height, req_comp, sizeof(float), 0)) + return stbi__errpf("too large", "HDR image is too large"); + + // Read data + hdr_data = (float *) stbi__malloc_mad4(width, height, req_comp, sizeof(float), 0); + if (!hdr_data) + return stbi__errpf("outofmem", "Out of memory"); + + // Load image data + // image data is stored as some number of sca + if ( width < 8 || width >= 32768) { + // Read flat data + for (j=0; j < height; ++j) { + for (i=0; i < width; ++i) { + stbi_uc rgbe[4]; + main_decode_loop: + stbi__getn(s, rgbe, 4); + stbi__hdr_convert(hdr_data + j * width * req_comp + i * req_comp, rgbe, req_comp); + } + } + } else { + // Read RLE-encoded data + scanline = NULL; + + for (j = 0; j < height; ++j) { + c1 = stbi__get8(s); + c2 = stbi__get8(s); + len = stbi__get8(s); + if (c1 != 2 || c2 != 2 || (len & 0x80)) { + // not run-length encoded, so we have to actually use THIS data as a decoded + // pixel (note this can't be a valid pixel--one of RGB must be >= 128) + stbi_uc rgbe[4]; + rgbe[0] = (stbi_uc) c1; + rgbe[1] = (stbi_uc) c2; + rgbe[2] = (stbi_uc) len; + rgbe[3] = (stbi_uc) stbi__get8(s); + stbi__hdr_convert(hdr_data, rgbe, req_comp); + i = 1; + j = 0; + STBI_FREE(scanline); + goto main_decode_loop; // yes, this makes no sense + } + len <<= 8; + len |= stbi__get8(s); + if (len != width) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("invalid decoded scanline length", "corrupt HDR"); } + if (scanline == NULL) { + scanline = (stbi_uc *) stbi__malloc_mad2(width, 4, 0); + if (!scanline) { + STBI_FREE(hdr_data); + return stbi__errpf("outofmem", "Out of memory"); + } + } + + for (k = 0; k < 4; ++k) { + int nleft; + i = 0; + while ((nleft = width - i) > 0) { + count = stbi__get8(s); + if (count > 128) { + // Run + value = stbi__get8(s); + count -= 128; + if (count > nleft) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("corrupt", "bad RLE data in HDR"); } + for (z = 0; z < count; ++z) + scanline[i++ * 4 + k] = value; + } else { + // Dump + if (count > nleft) { STBI_FREE(hdr_data); STBI_FREE(scanline); return stbi__errpf("corrupt", "bad RLE data in HDR"); } + for (z = 0; z < count; ++z) + scanline[i++ * 4 + k] = stbi__get8(s); + } + } + } + for (i=0; i < width; ++i) + stbi__hdr_convert(hdr_data+(j*width + i)*req_comp, scanline + i*4, req_comp); + } + if (scanline) + STBI_FREE(scanline); + } + + return hdr_data; +} + +static int stbi__hdr_info(stbi__context *s, int *x, int *y, int *comp) +{ + char buffer[STBI__HDR_BUFLEN]; + char *token; + int valid = 0; + int dummy; + + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; + + if (stbi__hdr_test(s) == 0) { + stbi__rewind( s ); + return 0; + } + + for(;;) { + token = stbi__hdr_gettoken(s,buffer); + if (token[0] == 0) break; + if (strcmp(token, "FORMAT=32-bit_rle_rgbe") == 0) valid = 1; + } + + if (!valid) { + stbi__rewind( s ); + return 0; + } + token = stbi__hdr_gettoken(s,buffer); + if (strncmp(token, "-Y ", 3)) { + stbi__rewind( s ); + return 0; + } + token += 3; + *y = (int) strtol(token, &token, 10); + while (*token == ' ') ++token; + if (strncmp(token, "+X ", 3)) { + stbi__rewind( s ); + return 0; + } + token += 3; + *x = (int) strtol(token, NULL, 10); + *comp = 3; + return 1; +} +#endif // STBI_NO_HDR + +#ifndef STBI_NO_BMP +static int stbi__bmp_info(stbi__context *s, int *x, int *y, int *comp) +{ + void *p; + stbi__bmp_data info; + + info.all_a = 255; + p = stbi__bmp_parse_header(s, &info); + stbi__rewind( s ); + if (p == NULL) + return 0; + if (x) *x = s->img_x; + if (y) *y = s->img_y; + if (comp) { + if (info.bpp == 24 && info.ma == 0xff000000) + *comp = 3; + else + *comp = info.ma ? 4 : 3; + } + return 1; +} +#endif + +#ifndef STBI_NO_PSD +static int stbi__psd_info(stbi__context *s, int *x, int *y, int *comp) +{ + int channelCount, dummy, depth; + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; + if (stbi__get32be(s) != 0x38425053) { + stbi__rewind( s ); + return 0; + } + if (stbi__get16be(s) != 1) { + stbi__rewind( s ); + return 0; + } + stbi__skip(s, 6); + channelCount = stbi__get16be(s); + if (channelCount < 0 || channelCount > 16) { + stbi__rewind( s ); + return 0; + } + *y = stbi__get32be(s); + *x = stbi__get32be(s); + depth = stbi__get16be(s); + if (depth != 8 && depth != 16) { + stbi__rewind( s ); + return 0; + } + if (stbi__get16be(s) != 3) { + stbi__rewind( s ); + return 0; + } + *comp = 4; + return 1; +} + +static int stbi__psd_is16(stbi__context *s) +{ + int channelCount, depth; + if (stbi__get32be(s) != 0x38425053) { + stbi__rewind( s ); + return 0; + } + if (stbi__get16be(s) != 1) { + stbi__rewind( s ); + return 0; + } + stbi__skip(s, 6); + channelCount = stbi__get16be(s); + if (channelCount < 0 || channelCount > 16) { + stbi__rewind( s ); + return 0; + } + (void) stbi__get32be(s); + (void) stbi__get32be(s); + depth = stbi__get16be(s); + if (depth != 16) { + stbi__rewind( s ); + return 0; + } + return 1; +} +#endif + +#ifndef STBI_NO_PIC +static int stbi__pic_info(stbi__context *s, int *x, int *y, int *comp) +{ + int act_comp=0,num_packets=0,chained,dummy; + stbi__pic_packet packets[10]; + + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; + + if (!stbi__pic_is4(s,"\x53\x80\xF6\x34")) { + stbi__rewind(s); + return 0; + } + + stbi__skip(s, 88); + + *x = stbi__get16be(s); + *y = stbi__get16be(s); + if (stbi__at_eof(s)) { + stbi__rewind( s); + return 0; + } + if ( (*x) != 0 && (1 << 28) / (*x) < (*y)) { + stbi__rewind( s ); + return 0; + } + + stbi__skip(s, 8); + + do { + stbi__pic_packet *packet; + + if (num_packets==sizeof(packets)/sizeof(packets[0])) + return 0; + + packet = &packets[num_packets++]; + chained = stbi__get8(s); + packet->size = stbi__get8(s); + packet->type = stbi__get8(s); + packet->channel = stbi__get8(s); + act_comp |= packet->channel; + + if (stbi__at_eof(s)) { + stbi__rewind( s ); + return 0; + } + if (packet->size != 8) { + stbi__rewind( s ); + return 0; + } + } while (chained); + + *comp = (act_comp & 0x10 ? 4 : 3); + + return 1; +} +#endif + +// ************************************************************************************************* +// Portable Gray Map and Portable Pixel Map loader +// by Ken Miller +// +// PGM: http://netpbm.sourceforge.net/doc/pgm.html +// PPM: http://netpbm.sourceforge.net/doc/ppm.html +// +// Known limitations: +// Does not support comments in the header section +// Does not support ASCII image data (formats P2 and P3) +// Does not support 16-bit-per-channel + +#ifndef STBI_NO_PNM + +static int stbi__pnm_test(stbi__context *s) +{ + char p, t; + p = (char) stbi__get8(s); + t = (char) stbi__get8(s); + if (p != 'P' || (t != '5' && t != '6')) { + stbi__rewind( s ); + return 0; + } + return 1; +} + +static void *stbi__pnm_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) +{ + stbi_uc *out; + STBI_NOTUSED(ri); + + if (!stbi__pnm_info(s, (int *)&s->img_x, (int *)&s->img_y, (int *)&s->img_n)) + return 0; + + if (s->img_y > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + if (s->img_x > STBI_MAX_DIMENSIONS) return stbi__errpuc("too large","Very large image (corrupt?)"); + + *x = s->img_x; + *y = s->img_y; + if (comp) *comp = s->img_n; + + if (!stbi__mad3sizes_valid(s->img_n, s->img_x, s->img_y, 0)) + return stbi__errpuc("too large", "PNM too large"); + + out = (stbi_uc *) stbi__malloc_mad3(s->img_n, s->img_x, s->img_y, 0); + if (!out) return stbi__errpuc("outofmem", "Out of memory"); + stbi__getn(s, out, s->img_n * s->img_x * s->img_y); + + if (req_comp && req_comp != s->img_n) { + out = stbi__convert_format(out, s->img_n, req_comp, s->img_x, s->img_y); + if (out == NULL) return out; // stbi__convert_format frees input on failure + } + return out; +} + +static int stbi__pnm_isspace(char c) +{ + return c == ' ' || c == '\t' || c == '\n' || c == '\v' || c == '\f' || c == '\r'; +} + +static void stbi__pnm_skip_whitespace(stbi__context *s, char *c) +{ + for (;;) { + while (!stbi__at_eof(s) && stbi__pnm_isspace(*c)) + *c = (char) stbi__get8(s); + + if (stbi__at_eof(s) || *c != '#') + break; + + while (!stbi__at_eof(s) && *c != '\n' && *c != '\r' ) + *c = (char) stbi__get8(s); + } +} + +static int stbi__pnm_isdigit(char c) +{ + return c >= '0' && c <= '9'; +} + +static int stbi__pnm_getinteger(stbi__context *s, char *c) +{ + int value = 0; + + while (!stbi__at_eof(s) && stbi__pnm_isdigit(*c)) { + value = value*10 + (*c - '0'); + *c = (char) stbi__get8(s); + } + + return value; +} + +static int stbi__pnm_info(stbi__context *s, int *x, int *y, int *comp) +{ + int maxv, dummy; + char c, p, t; + + if (!x) x = &dummy; + if (!y) y = &dummy; + if (!comp) comp = &dummy; + + stbi__rewind(s); + + // Get identifier + p = (char) stbi__get8(s); + t = (char) stbi__get8(s); + if (p != 'P' || (t != '5' && t != '6')) { + stbi__rewind(s); + return 0; + } + + *comp = (t == '6') ? 3 : 1; // '5' is 1-component .pgm; '6' is 3-component .ppm + + c = (char) stbi__get8(s); + stbi__pnm_skip_whitespace(s, &c); + + *x = stbi__pnm_getinteger(s, &c); // read width + stbi__pnm_skip_whitespace(s, &c); + + *y = stbi__pnm_getinteger(s, &c); // read height + stbi__pnm_skip_whitespace(s, &c); + + maxv = stbi__pnm_getinteger(s, &c); // read max value + + if (maxv > 255) + return stbi__err("max value > 255", "PPM image not 8-bit"); + else + return 1; +} +#endif + +static int stbi__info_main(stbi__context *s, int *x, int *y, int *comp) +{ + #ifndef STBI_NO_JPEG + if (stbi__jpeg_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_PNG + if (stbi__png_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_GIF + if (stbi__gif_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_BMP + if (stbi__bmp_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_PSD + if (stbi__psd_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_PIC + if (stbi__pic_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_PNM + if (stbi__pnm_info(s, x, y, comp)) return 1; + #endif + + #ifndef STBI_NO_HDR + if (stbi__hdr_info(s, x, y, comp)) return 1; + #endif + + // test tga last because it's a crappy test! + #ifndef STBI_NO_TGA + if (stbi__tga_info(s, x, y, comp)) + return 1; + #endif + return stbi__err("unknown image type", "Image not of any known type, or corrupt"); +} + +static int stbi__is_16_main(stbi__context *s) +{ + #ifndef STBI_NO_PNG + if (stbi__png_is16(s)) return 1; + #endif + + #ifndef STBI_NO_PSD + if (stbi__psd_is16(s)) return 1; + #endif + + return 0; +} + +#ifndef STBI_NO_STDIO +STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp) +{ + FILE *f = stbi__fopen(filename, "rb"); + int result; + if (!f) return stbi__err("can't fopen", "Unable to open file"); + result = stbi_info_from_file(f, x, y, comp); + fclose(f); + return result; +} + +STBIDEF int stbi_info_from_file(FILE *f, int *x, int *y, int *comp) +{ + int r; + stbi__context s; + long pos = ftell(f); + stbi__start_file(&s, f); + r = stbi__info_main(&s,x,y,comp); + fseek(f,pos,SEEK_SET); + return r; +} + +STBIDEF int stbi_is_16_bit(char const *filename) +{ + FILE *f = stbi__fopen(filename, "rb"); + int result; + if (!f) return stbi__err("can't fopen", "Unable to open file"); + result = stbi_is_16_bit_from_file(f); + fclose(f); + return result; +} + +STBIDEF int stbi_is_16_bit_from_file(FILE *f) +{ + int r; + stbi__context s; + long pos = ftell(f); + stbi__start_file(&s, f); + r = stbi__is_16_main(&s); + fseek(f,pos,SEEK_SET); + return r; +} +#endif // !STBI_NO_STDIO + +STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__info_main(&s,x,y,comp); +} + +STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) c, user); + return stbi__info_main(&s,x,y,comp); +} + +STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len) +{ + stbi__context s; + stbi__start_mem(&s,buffer,len); + return stbi__is_16_main(&s); +} + +STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user) +{ + stbi__context s; + stbi__start_callbacks(&s, (stbi_io_callbacks *) c, user); + return stbi__is_16_main(&s); +} + +#endif // STB_IMAGE_IMPLEMENTATION + +/* + revision history: + 2.20 (2019-02-07) support utf8 filenames in Windows; fix warnings and platform ifdefs + 2.19 (2018-02-11) fix warning + 2.18 (2018-01-30) fix warnings + 2.17 (2018-01-29) change sbti__shiftsigned to avoid clang -O2 bug + 1-bit BMP + *_is_16_bit api + avoid warnings + 2.16 (2017-07-23) all functions have 16-bit variants; + STBI_NO_STDIO works again; + compilation fixes; + fix rounding in unpremultiply; + optimize vertical flip; + disable raw_len validation; + documentation fixes + 2.15 (2017-03-18) fix png-1,2,4 bug; now all Imagenet JPGs decode; + warning fixes; disable run-time SSE detection on gcc; + uniform handling of optional "return" values; + thread-safe initialization of zlib tables + 2.14 (2017-03-03) remove deprecated STBI_JPEG_OLD; fixes for Imagenet JPGs + 2.13 (2016-11-29) add 16-bit API, only supported for PNG right now + 2.12 (2016-04-02) fix typo in 2.11 PSD fix that caused crashes + 2.11 (2016-04-02) allocate large structures on the stack + remove white matting for transparent PSD + fix reported channel count for PNG & BMP + re-enable SSE2 in non-gcc 64-bit + support RGB-formatted JPEG + read 16-bit PNGs (only as 8-bit) + 2.10 (2016-01-22) avoid warning introduced in 2.09 by STBI_REALLOC_SIZED + 2.09 (2016-01-16) allow comments in PNM files + 16-bit-per-pixel TGA (not bit-per-component) + info() for TGA could break due to .hdr handling + info() for BMP to shares code instead of sloppy parse + can use STBI_REALLOC_SIZED if allocator doesn't support realloc + code cleanup + 2.08 (2015-09-13) fix to 2.07 cleanup, reading RGB PSD as RGBA + 2.07 (2015-09-13) fix compiler warnings + partial animated GIF support + limited 16-bpc PSD support + #ifdef unused functions + bug with < 92 byte PIC,PNM,HDR,TGA + 2.06 (2015-04-19) fix bug where PSD returns wrong '*comp' value + 2.05 (2015-04-19) fix bug in progressive JPEG handling, fix warning + 2.04 (2015-04-15) try to re-enable SIMD on MinGW 64-bit + 2.03 (2015-04-12) extra corruption checking (mmozeiko) + stbi_set_flip_vertically_on_load (nguillemot) + fix NEON support; fix mingw support + 2.02 (2015-01-19) fix incorrect assert, fix warning + 2.01 (2015-01-17) fix various warnings; suppress SIMD on gcc 32-bit without -msse2 + 2.00b (2014-12-25) fix STBI_MALLOC in progressive JPEG + 2.00 (2014-12-25) optimize JPG, including x86 SSE2 & NEON SIMD (ryg) + progressive JPEG (stb) + PGM/PPM support (Ken Miller) + STBI_MALLOC,STBI_REALLOC,STBI_FREE + GIF bugfix -- seemingly never worked + STBI_NO_*, STBI_ONLY_* + 1.48 (2014-12-14) fix incorrectly-named assert() + 1.47 (2014-12-14) 1/2/4-bit PNG support, both direct and paletted (Omar Cornut & stb) + optimize PNG (ryg) + fix bug in interlaced PNG with user-specified channel count (stb) + 1.46 (2014-08-26) + fix broken tRNS chunk (colorkey-style transparency) in non-paletted PNG + 1.45 (2014-08-16) + fix MSVC-ARM internal compiler error by wrapping malloc + 1.44 (2014-08-07) + various warning fixes from Ronny Chevalier + 1.43 (2014-07-15) + fix MSVC-only compiler problem in code changed in 1.42 + 1.42 (2014-07-09) + don't define _CRT_SECURE_NO_WARNINGS (affects user code) + fixes to stbi__cleanup_jpeg path + added STBI_ASSERT to avoid requiring assert.h + 1.41 (2014-06-25) + fix search&replace from 1.36 that messed up comments/error messages + 1.40 (2014-06-22) + fix gcc struct-initialization warning + 1.39 (2014-06-15) + fix to TGA optimization when req_comp != number of components in TGA; + fix to GIF loading because BMP wasn't rewinding (whoops, no GIFs in my test suite) + add support for BMP version 5 (more ignored fields) + 1.38 (2014-06-06) + suppress MSVC warnings on integer casts truncating values + fix accidental rename of 'skip' field of I/O + 1.37 (2014-06-04) + remove duplicate typedef + 1.36 (2014-06-03) + convert to header file single-file library + if de-iphone isn't set, load iphone images color-swapped instead of returning NULL + 1.35 (2014-05-27) + various warnings + fix broken STBI_SIMD path + fix bug where stbi_load_from_file no longer left file pointer in correct place + fix broken non-easy path for 32-bit BMP (possibly never used) + TGA optimization by Arseny Kapoulkine + 1.34 (unknown) + use STBI_NOTUSED in stbi__resample_row_generic(), fix one more leak in tga failure case + 1.33 (2011-07-14) + make stbi_is_hdr work in STBI_NO_HDR (as specified), minor compiler-friendly improvements + 1.32 (2011-07-13) + support for "info" function for all supported filetypes (SpartanJ) + 1.31 (2011-06-20) + a few more leak fixes, bug in PNG handling (SpartanJ) + 1.30 (2011-06-11) + added ability to load files via callbacks to accomidate custom input streams (Ben Wenger) + removed deprecated format-specific test/load functions + removed support for installable file formats (stbi_loader) -- would have been broken for IO callbacks anyway + error cases in bmp and tga give messages and don't leak (Raymond Barbiero, grisha) + fix inefficiency in decoding 32-bit BMP (David Woo) + 1.29 (2010-08-16) + various warning fixes from Aurelien Pocheville + 1.28 (2010-08-01) + fix bug in GIF palette transparency (SpartanJ) + 1.27 (2010-08-01) + cast-to-stbi_uc to fix warnings + 1.26 (2010-07-24) + fix bug in file buffering for PNG reported by SpartanJ + 1.25 (2010-07-17) + refix trans_data warning (Won Chun) + 1.24 (2010-07-12) + perf improvements reading from files on platforms with lock-heavy fgetc() + minor perf improvements for jpeg + deprecated type-specific functions so we'll get feedback if they're needed + attempt to fix trans_data warning (Won Chun) + 1.23 fixed bug in iPhone support + 1.22 (2010-07-10) + removed image *writing* support + stbi_info support from Jetro Lauha + GIF support from Jean-Marc Lienher + iPhone PNG-extensions from James Brown + warning-fixes from Nicolas Schulz and Janez Zemva (i.stbi__err. Janez (U+017D)emva) + 1.21 fix use of 'stbi_uc' in header (reported by jon blow) + 1.20 added support for Softimage PIC, by Tom Seddon + 1.19 bug in interlaced PNG corruption check (found by ryg) + 1.18 (2008-08-02) + fix a threading bug (local mutable static) + 1.17 support interlaced PNG + 1.16 major bugfix - stbi__convert_format converted one too many pixels + 1.15 initialize some fields for thread safety + 1.14 fix threadsafe conversion bug + header-file-only version (#define STBI_HEADER_FILE_ONLY before including) + 1.13 threadsafe + 1.12 const qualifiers in the API + 1.11 Support installable IDCT, colorspace conversion routines + 1.10 Fixes for 64-bit (don't use "unsigned long") + optimized upsampling by Fabian "ryg" Giesen + 1.09 Fix format-conversion for PSD code (bad global variables!) + 1.08 Thatcher Ulrich's PSD code integrated by Nicolas Schulz + 1.07 attempt to fix C++ warning/errors again + 1.06 attempt to fix C++ warning/errors again + 1.05 fix TGA loading to return correct *comp and use good luminance calc + 1.04 default float alpha is 1, not 255; use 'void *' for stbi_image_free + 1.03 bugfixes to STBI_NO_STDIO, STBI_NO_HDR + 1.02 support for (subset of) HDR files, float interface for preferred access to them + 1.01 fix bug: possible bug in handling right-side up bmps... not sure + fix bug: the stbi__bmp_load() and stbi__tga_load() functions didn't work at all + 1.00 interface to zlib that skips zlib header + 0.99 correct handling of alpha in palette + 0.98 TGA loader by lonesock; dynamically add loaders (untested) + 0.97 jpeg errors on too large a file; also catch another malloc failure + 0.96 fix detection of invalid v value - particleman@mollyrocket forum + 0.95 during header scan, seek to markers in case of padding + 0.94 STBI_NO_STDIO to disable stdio usage; rename all #defines the same + 0.93 handle jpegtran output; verbose errors + 0.92 read 4,8,16,24,32-bit BMP files of several formats + 0.91 output 24-bit Windows 3.0 BMP files + 0.90 fix a few more warnings; bump version number to approach 1.0 + 0.61 bugfixes due to Marc LeBlanc, Christopher Lloyd + 0.60 fix compiling as c++ + 0.59 fix warnings: merge Dave Moore's -Wall fixes + 0.58 fix bug: zlib uncompressed mode len/nlen was wrong endian + 0.57 fix bug: jpg last huffman symbol before marker was >9 bits but less than 16 available + 0.56 fix bug: zlib uncompressed mode len vs. nlen + 0.55 fix bug: restart_interval not initialized to 0 + 0.54 allow NULL for 'int *comp' + 0.53 fix bug in png 3->4; speedup png decoding + 0.52 png handles req_comp=3,4 directly; minor cleanup; jpeg comments + 0.51 obey req_comp requests, 1-component jpegs return as 1-component, + on 'test' only check type, not whether we support this variant + 0.50 (2006-11-19) + first released version +*/ + + +/* +------------------------------------------------------------------------------ +This software is available under 2 licenses -- choose whichever you prefer. +------------------------------------------------------------------------------ +ALTERNATIVE A - MIT License +Copyright (c) 2017 Sean Barrett +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies +of the Software, and to permit persons to whom the Software is furnished to do +so, subject to the following conditions: +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +------------------------------------------------------------------------------ +ALTERNATIVE B - Public Domain (www.unlicense.org) +This is free and unencumbered software released into the public domain. +Anyone is free to copy, modify, publish, use, compile, sell, or distribute this +software, either in source code form or as a compiled binary, for any purpose, +commercial or non-commercial, and by any means. +In jurisdictions that recognize copyright laws, the author or authors of this +software dedicate any and all copyright interest in the software to the public +domain. We make this dedication for the benefit of the public at large and to +the detriment of our heirs and successors. We intend this dedication to be an +overt act of relinquishment in perpetuity of all present and future rights to +this software under copyright law. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +------------------------------------------------------------------------------ +*/ diff --git a/stb/src/stb_image.c b/stb/src/stb_image.c new file mode 100644 index 0000000..2a9e7fd --- /dev/null +++ b/stb/src/stb_image.c @@ -0,0 +1,4 @@ +#define STBI_ONLY_PNG + +#define STB_IMAGE_IMPLEMENTATION +#include