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Generate Sources of origin/master updated at Fri Feb 19 17:44:34 GMT 2016
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src/glew.c
53
src/glew.c
@ -44,8 +44,6 @@
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#endif
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#include <stddef.h> /* For size_t */
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#include <stdlib.h> /* For bsearch */
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#include <string.h> /* For memset */
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#if defined(GLEW_EGL)
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#elif defined(GLEW_REGAL)
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@ -16697,11 +16695,9 @@ static GLboolean _glewInit_GL_WIN_swap_hint ()
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/* ------------------------------------------------------------------------- */
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static int _glewExtensionCompare(const void *a, const void *b)
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static int _glewExtensionCompare(const char *s1, const char *s2)
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{
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/* http://www.chanduthedev.com/2012/07/strcmp-implementation-in-c.html */
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const char *s1 = (const char *) a;
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const char *s2 = *(const char * const *) b;
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while (*s1 || *s2)
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{
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if (*s1 > *s2)
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@ -16714,31 +16710,32 @@ static int _glewExtensionCompare(const void *a, const void *b)
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return 0;
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}
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static GLboolean *_glewGetExtensionString(const char *name)
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static ptrdiff_t _glewBsearchExtension(const char* name)
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{
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const char **n = (const char **) bsearch(name, _glewExtensionLookup, sizeof(_glewExtensionLookup)/sizeof(char *)-1, sizeof(char *), _glewExtensionCompare);
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ptrdiff_t i;
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ptrdiff_t lo = 0, hi = sizeof(_glewExtensionLookup) / sizeof(char*) - 2;
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if (n)
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while (lo <= hi)
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{
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i = n-_glewExtensionLookup;
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return _glewExtensionString+i;
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ptrdiff_t mid = (lo + hi) / 2;
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const int cmp = _glewExtensionCompare(name, _glewExtensionLookup[mid]);
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if (cmp < 0) hi = mid - 1;
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else if (cmp > 0) lo = mid + 1;
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else return mid;
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}
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return -1;
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}
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static GLboolean *_glewGetExtensionString(const char *name)
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{
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ptrdiff_t n = _glewBsearchExtension(name);
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if (n >= 0) return &_glewExtensionString[n];
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return NULL;
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}
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static GLboolean *_glewGetExtensionEnable(const char *name)
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{
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const char **n = (const char **) bsearch(name, _glewExtensionLookup, sizeof(_glewExtensionLookup)/sizeof(char *)-1, sizeof(char *), _glewExtensionCompare);
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ptrdiff_t i;
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if (n)
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{
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i = n-_glewExtensionLookup;
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return _glewExtensionEnabled[i];
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}
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ptrdiff_t n = _glewBsearchExtension(name);
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if (n >= 0) return _glewExtensionEnabled[n];
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return NULL;
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}
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@ -16777,6 +16774,7 @@ static GLenum GLEWAPIENTRY glewContextInit ()
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const GLubyte* s;
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GLuint dot;
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GLint major, minor;
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size_t n;
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/* query opengl version */
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getString = (PFNGLGETSTRINGPROC) glewGetProcAddress((const GLubyte*)"glGetString");
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@ -16822,7 +16820,8 @@ static GLenum GLEWAPIENTRY glewContextInit ()
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GLEW_VERSION_1_1 = GLEW_VERSION_1_2 == GL_TRUE || ( major == 1 && minor >= 1 ) ? GL_TRUE : GL_FALSE;
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}
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memset(_glewExtensionString,0,sizeof(_glewExtensionString));
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for (n = 0; n < sizeof(_glewExtensionString) / sizeof(_glewExtensionString[0]); ++n)
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_glewExtensionString[n] = GL_FALSE;
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if (GLEW_VERSION_3_0)
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{
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@ -20778,6 +20777,18 @@ GLenum GLEWAPIENTRY glewInit (void)
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return r;
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#endif /* _WIN32 */
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}
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#if defined(_WIN32) && defined(GLEW_BUILD) && defined(__GNUC__)
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/* GCC requires a DLL entry point even without any standard library included. */
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/* Types extracted from windows.h to avoid polluting the rest of the file. */
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int __stdcall DllMainCRTStartup(void* instance, unsigned reason, void* reserved)
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{
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(void) instance;
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(void) reason;
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(void) reserved;
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return 1;
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}
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#endif
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GLboolean GLEWAPIENTRY glewIsSupported (const char* name)
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{
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const GLubyte* pos = (const GLubyte*)name;
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