quake2 游戏引擎

/* Copyright (C) 1997-2001 Id Software, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* ** QGL_WIN.C ** ** This file implements the operating system binding of GL to QGL function ** pointers. When doing a port of Quake2 you must implement the following ** two functions: ** ** QGL_Init() - loads libraries, assigns function pointers, etc. ** QGL_Shutdown() - unloads libraries, NULLs function pointers */ #include <float.h> #include "../ref_gl/gl_local.h" #include "glw_win.h" int ( WINAPI * qwglChoosePixelFormat )(HDC, CONST PIXELFORMATDESCRIPTOR *); int ( WINAPI * qwglDescribePixelFormat) (HDC, int, UINT, LPPIXELFORMATDESCRIPTOR); int ( WINAPI * qwglGetPixelFormat)(HDC); BOOL ( WINAPI * qwglSetPixelFormat)(HDC, int, CONST PIXELFORMATDESCRIPTOR *); BOOL ( WINAPI * qwglSwapBuffers)(HDC); BOOL ( WINAPI * qwglCopyContext)(HGLRC, HGLRC, UINT); HGLRC ( WINAPI * qwglCreateContext)(HDC); HGLRC ( WINAPI * qwglCreateLayerContext)(HDC, int); BOOL ( WINAPI * qwglDeleteContext)(HGLRC); HGLRC ( WINAPI * qwglGetCurrentContext)(VOID); HDC ( WINAPI * qwglGetCurrentDC)(VOID); PROC ( WINAPI * qwglGetProcAddress)(LPCSTR); BOOL ( WINAPI * qwglMakeCurrent)(HDC, HGLRC); BOOL ( WINAPI * qwglShareLists)(HGLRC, HGLRC); BOOL ( WINAPI * qwglUseFontBitmaps)(HDC, DWORD, DWORD, DWORD); BOOL ( WINAPI * qwglUseFontOutlines)(HDC, DWORD, DWORD, DWORD, FLOAT, FLOAT, int, LPGLYPHMETRICSFLOAT); BOOL ( WINAPI * qwglDescribeLayerPlane)(HDC, int, int, UINT, LPLAYERPLANEDESCRIPTOR); int ( WINAPI * qwglSetLayerPaletteEntries)(HDC, int, int, int, CONST COLORREF *); int ( WINAPI * qwglGetLayerPaletteEntries)(HDC, int, int, int, COLORREF *); BOOL ( WINAPI * qwglRealizeLayerPalette)(HDC, int, BOOL); BOOL ( WINAPI * qwglSwapLayerBuffers)(HDC, UINT); void ( APIENTRY * qglAccum )(GLenum op, GLfloat value); void ( APIENTRY * qglAlphaFunc )(GLenum func, GLclampf ref); GLboolean ( APIENTRY * qglAreTexturesResident )(GLsizei n, const GLuint *textures, GLboolean *residences); void ( APIENTRY * qglArrayElement )(GLint i); void ( APIENTRY * qglBegin )(GLenum mode); void ( APIENTRY * qglBindTexture )(GLenum target, GLuint texture); void ( APIENTRY * qglBitmap )(GLsizei width, GLsizei height, GLfloat xorig, GLfloat yorig, GLfloat xmove, GLfloat ymove, const GLubyte *bitmap); void ( APIENTRY * qglBlendFunc )(GLenum sfactor, GLenum dfactor); void ( APIENTRY * qglCallList )(GLuint list); void ( APIENTRY * qglCallLists )(GLsizei n, GLenum type, const GLvoid *lists); void ( APIENTRY * qglClear )(GLbitfield mask); void ( APIENTRY * qglClearAccum )(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha); void ( APIENTRY * qglClearColor )(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha); void ( APIENTRY * qglClearDepth )(GLclampd depth); void ( APIENTRY * qglClearIndex )(GLfloat c); void ( APIENTRY * qglClearStencil )(GLint s); void ( APIENTRY * qglClipPlane )(GLenum plane, const GLdouble *equation); void ( APIENTRY * qglColor3b )(GLbyte red, GLbyte green, GLbyte blue); void ( APIENTRY * qglColor3bv )(const GLbyte *v); void ( APIENTRY * qglColor3d )(GLdouble red, GLdouble green, GLdouble blue); void ( APIENTRY * qglColor3dv )(const GLdouble *v); void ( APIENTRY * qglColor3f )(GLfloat red, GLfloat green, GLfloat blue); void ( APIENTRY * qglColor3fv )(const GLfloat *v); void ( APIENTRY * qglColor3i )(GLint red, GLint green, GLint blue); void ( APIENTRY * qglColor3iv )(const GLint *v); void ( APIENTRY * qglColor3s )(GLshort red, GLshort green, GLshort blue); void ( APIENTRY * qglColor3sv )(const GLshort *v); void ( APIENTRY * qglColor3ub )(GLubyte red, GLubyte green, GLubyte blue); void ( APIENTRY * qglColor3ubv )(const GLubyte *v); void ( APIENTRY * qglColor3ui )(GLuint red, GLuint green, GLuint blue); void ( APIENTRY * qglColor3uiv )(const GLuint *v); void ( APIENTRY * qglColor3us )(GLushort red, GLushort green, GLushort blue); void ( APIENTRY * qglColor3usv )(const GLushort *v); void ( APIENTRY * qglColor4b )(GLbyte red, GLbyte green, GLbyte blue, GLbyte alpha); void ( APIENTRY * qglColor4bv )(const GLbyte *v); void ( APIENTRY * qglColor4d )(GLdouble red, GLdouble green, GLdouble blue, GLdouble alpha); void ( APIENTRY * qglColor4dv )(const GLdouble *v); void ( APIENTRY * qglColor4f )(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha); void ( APIENTRY * qglColor4fv )(const GLfloat *v); void ( APIENTRY * qglColor4i )(GLint red, GLint green, GLint blue, GLint alpha); void ( APIENTRY * qglColor4iv )(const GLint *v); void ( APIENTRY * qglColor4s )(GLshort red, GLshort green, GLshort blue, GLshort alpha); void ( APIENTRY * qglColor4sv )(const GLshort *v); void ( APIENTRY * qglColor4ub )(GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha); void ( APIENTRY * qglColor4ubv )(const GLubyte *v); void ( APIENTRY * qglColor4ui )(GLuint red, GLuint green, GLuint blue, GLuint alpha); void ( APIENTRY * qglColor4uiv )(const GLuint *v); void ( APIENTRY * qglColor4us )(GLushort red, GLushort green, GLushort blue, GLushort alpha); void ( APIENTRY * qglColor4usv )(const GLushort *v); void ( APIENTRY * qglColorMask )(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha); void ( APIENTRY * qglColorMaterial )(GLenum face, GLenum mode); void ( APIENTRY * qglColorPointer )(GLint size, GLenum type, GLsizei stride, const GLvoid *pointer); void ( APIENTRY * qglCopyPixels )(GLint x, GLint y, GLsizei width, GLsizei height, GLenum type); void ( APIENTRY * qglCopyTexImage1D )(GLenum target, GLint level, GLenum internalFormat, GLint x, GLint y, GLsizei width, GLint border); void ( APIENTRY * qglCopyTexImage2D )(GLenum target, GLint level, GLenum internalFormat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border); void ( APIENTRY * qglCopyTexSubImage1D )(GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width); void ( APIENTRY * qglCopyTexSubImage2D )(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height); void ( APIENTRY * qglCullFace )(GLenum mode); void ( APIENTRY * qglDeleteLists )(GLuint list, GLsizei range); void ( APIENTRY * qglDeleteTextures )(GLsizei n, const GLuint *textures); void ( APIENTRY * qglDepthFunc )(GLenum func); void ( APIENTRY * qglDepthMask )(GLboolean flag); void ( APIENTRY * qglDepthRange )(GLclampd zNear, GLclampd zFar); void ( APIENTRY * qglDisable )(GLenum cap); void ( APIENTRY * qglDisableClientState )(GLenum array); void ( APIENTRY * qglDrawArrays )(GLenum mode, GLint first, GLsizei count); void ( APIENTRY * qglDrawBuffer )(GLenum mode); void ( APIENTRY * qglDrawElements )(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices); void ( APIENTRY * qglDrawPixels )(GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels); void ( APIENTRY * qglEdgeFlag )(GLboolean flag); void ( APIENTRY * qglEdgeFlagPointer )(GLsizei stride, const GLvoid *pointer); void ( APIENTRY * qglEdgeFlagv )(const GLboolean *flag); void ( APIENTRY * qglEnable )(GLenum cap); void ( APIENTRY * qglEnableClientState )(GLenum array); void ( API