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Diffstat (limited to 'src/engine/external/glfw/lib/glext.c')
| -rw-r--r-- | src/engine/external/glfw/lib/glext.c | 201 |
1 files changed, 0 insertions, 201 deletions
diff --git a/src/engine/external/glfw/lib/glext.c b/src/engine/external/glfw/lib/glext.c deleted file mode 100644 index fda56fa2..00000000 --- a/src/engine/external/glfw/lib/glext.c +++ /dev/null @@ -1,201 +0,0 @@ -//======================================================================== -// GLFW - An OpenGL framework -// File: glext.c -// Platform: Any -// API version: 2.6 -// WWW: http://glfw.sourceforge.net -//------------------------------------------------------------------------ -// Copyright (c) 2002-2006 Camilla Berglund -// -// This software is provided 'as-is', without any express or implied -// warranty. In no event will the authors be held liable for any damages -// arising from the use of this software. -// -// Permission is granted to anyone to use this software for any purpose, -// including commercial applications, and to alter it and redistribute it -// freely, subject to the following restrictions: -// -// 1. The origin of this software must not be misrepresented; you must not -// claim that you wrote the original software. If you use this software -// in a product, an acknowledgment in the product documentation would -// be appreciated but is not required. -// -// 2. Altered source versions must be plainly marked as such, and must not -// be misrepresented as being the original software. -// -// 3. This notice may not be removed or altered from any source -// distribution. -// -//======================================================================== - -#include "internal.h" - - -//************************************************************************ -//**** GLFW internal functions **** -//************************************************************************ - -//======================================================================== -// _glfwStringInExtensionString() - Check if a string can be found in an -// OpenGL extension string -//======================================================================== - -int _glfwStringInExtensionString( const char *string, - const GLubyte *extensions ) -{ - const GLubyte *start; - GLubyte *where, *terminator; - - // It takes a bit of care to be fool-proof about parsing the - // OpenGL extensions string. Don't be fooled by sub-strings, - // etc. - start = extensions; - while( 1 ) - { - where = (GLubyte *) strstr( (const char *) start, string ); - if( !where ) - { - return GL_FALSE; - } - terminator = where + strlen( string ); - if( where == start || *(where - 1) == ' ' ) - { - if( *terminator == ' ' || *terminator == '\0' ) - { - break; - } - } - start = terminator; - } - - return GL_TRUE; -} - - - -//************************************************************************ -//**** GLFW user functions **** -//************************************************************************ - -//======================================================================== -// glfwExtensionSupported() - Check if an OpenGL extension is available -// at runtime -//======================================================================== - -GLFWAPI int GLFWAPIENTRY glfwExtensionSupported( const char *extension ) -{ - const GLubyte *extensions; - GLubyte *where; - - // Is GLFW initialized? - if( !_glfwInitialized || !_glfwWin.Opened ) - { - return GL_FALSE; - } - - // Extension names should not have spaces - where = (GLubyte *) strchr( extension, ' ' ); - if( where || *extension == '\0' ) - { - return GL_FALSE; - } - - // Check if extension is in the standard OpenGL extensions string - extensions = (GLubyte *) glGetString( GL_EXTENSIONS ); - if( extensions != NULL ) - { - if( _glfwStringInExtensionString( extension, extensions ) ) - { - return GL_TRUE; - } - } - - // Additional platform specific extension checking (e.g. WGL) - if( _glfwPlatformExtensionSupported( extension ) ) - { - return GL_TRUE; - } - - return GL_FALSE; -} - - -//======================================================================== -// glfwGetProcAddress() - Get the function pointer to an OpenGL function. -// This function can be used to get access to extended OpenGL functions. -//======================================================================== - -GLFWAPI void * GLFWAPIENTRY glfwGetProcAddress( const char *procname ) -{ - // Is GLFW initialized? - if( !_glfwInitialized || !_glfwWin.Opened ) - { - return NULL; - } - - return _glfwPlatformGetProcAddress( procname ); -} - - -//======================================================================== -// glfwGetGLVersion() - Get OpenGL version -//======================================================================== - -GLFWAPI void GLFWAPIENTRY glfwGetGLVersion( int *major, int *minor, - int *rev ) -{ - GLuint _major, _minor = 0, _rev = 0; - const GLubyte *version; - GLubyte *ptr; - - // Is GLFW initialized? - if( !_glfwInitialized || !_glfwWin.Opened ) - { - return; - } - - // Get OpenGL version string - version = glGetString( GL_VERSION ); - if( !version ) - { - return; - } - - // Parse string - ptr = (GLubyte*) version; - for( _major = 0; *ptr >= '0' && *ptr <= '9'; ptr ++ ) - { - _major = 10*_major + (*ptr - '0'); - } - if( *ptr == '.' ) - { - ptr ++; - for( _minor = 0; *ptr >= '0' && *ptr <= '9'; ptr ++ ) - { - _minor = 10*_minor + (*ptr - '0'); - } - if( *ptr == '.' ) - { - ptr ++; - for( _rev = 0; *ptr >= '0' && *ptr <= '9'; ptr ++ ) - { - _rev = 10*_rev + (*ptr - '0'); - } - } - } - - // Return parsed values - if( major != NULL ) - { - *major = _major; - } - if( minor != NULL ) - { - *minor = _minor; - } - if( rev != NULL ) - { - *rev = _rev; - } -} - |