2 Copyright (C) 2009 Richard Goedeken
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 /* This source file contains code for assigning function pointers to some OpenGL functions */
20 /* This is only necessary because Windows does not contain development support for OpenGL versions beyond 1.1 */
23 #include <SDL_opengles.h>
25 #include <SDL_opengl.h>
27 #include "OGLExtensions.h"
30 static void APIENTRY EmptyFunc(void) { return; }
33 bool bNvidiaExtensionsSupported = false;
35 PFUNCGLCOMBINERPARAMETERFVNVPROC pglCombinerParameterfvNV = (PFUNCGLCOMBINERPARAMETERFVNVPROC) EmptyFunc3;
36 PFUNCGLFINALCOMBINERINPUTNVPROC pglFinalCombinerInputNV = (PFUNCGLFINALCOMBINERINPUTNVPROC) EmptyFunc;
37 PFUNCGLCOMBINEROUTPUTNVPROC pglCombinerOutputNV = (PFUNCGLCOMBINEROUTPUTNVPROC) EmptyFunc;
38 PFUNCGLCOMBINERINPUTNVPROC pglCombinerInputNV = (PFUNCGLCOMBINERINPUTNVPROC) EmptyFunc;
39 PFUNCGLCOMBINERPARAMETERINVPROC pglCombinerParameteriNV = (PFUNCGLCOMBINERPARAMETERINVPROC) EmptyFunc;
41 PFUNCGLACTIVETEXTUREPROC pglActiveTexture = (PFUNCGLACTIVETEXTUREPROC) EmptyFunc;
42 PFUNCGLACTIVETEXTUREARBPROC pglActiveTextureARB = (PFUNCGLACTIVETEXTUREARBPROC) EmptyFunc;
43 PFUNCGLMULTITEXCOORD2FPROC pglMultiTexCoord2f = (PFUNCGLMULTITEXCOORD2FPROC) EmptyFunc;
44 PFUNCGLMULTITEXCOORD2FVPROC pglMultiTexCoord2fv = (PFUNCGLMULTITEXCOORD2FVPROC) EmptyFunc;
45 PFUNCGLDELETEPROGRAMSARBPROC pglDeleteProgramsARB = (PFUNCGLDELETEPROGRAMSARBPROC) EmptyFunc;
46 PFUNCGLPROGRAMSTRINGARBPROC pglProgramStringARB = (PFUNCGLPROGRAMSTRINGARBPROC) EmptyFunc;
47 PFUNCGLBINDPROGRAMARBPROC pglBindProgramARB = (PFUNCGLBINDPROGRAMARBPROC) EmptyFunc;
48 PFUNCGLGENPROGRAMSARBPROC pglGenProgramsARB = (PFUNCGLGENPROGRAMSARBPROC) EmptyFunc;
49 PFUNCGLPROGRAMENVPARAMETER4FVARBPROC pglProgramEnvParameter4fvARB = (PFUNCGLPROGRAMENVPARAMETER4FVARBPROC) EmptyFunc;
50 PFUNCGLFOGCOORDPOINTEREXTPROC pglFogCoordPointerEXT = (PFUNCGLFOGCOORDPOINTEREXTPROC) EmptyFunc;
51 PFUNCGLCLIENTACTIVETEXTUREARBPROC pglClientActiveTextureARB = (PFUNCGLCLIENTACTIVETEXTUREARBPROC) EmptyFunc2;
53 #define INIT_ENTRY_POINT(type, funcname) \
54 p##funcname = (type) CoreVideo_GL_GetProcAddress(#funcname); \
55 if (p##funcname == NULL) { DebugMessage(M64MSG_WARNING, \
56 "Couldn't get address of OpenGL function: '%s'", #funcname); p##funcname = (type) EmptyFunc; }
60 void OGLExtensions_Init(void)
63 bNvidiaExtensionsSupported = false;
65 /* nvidia extensions are a special case */
66 bNvidiaExtensionsSupported = true;
67 pglCombinerParameterfvNV = (PFUNCGLCOMBINERPARAMETERFVNVPROC) CoreVideo_GL_GetProcAddress("glCombinerParameterfvNV");
68 if (pglCombinerParameterfvNV == NULL) bNvidiaExtensionsSupported = false;
69 pglFinalCombinerInputNV = (PFUNCGLFINALCOMBINERINPUTNVPROC) CoreVideo_GL_GetProcAddress("glFinalCombinerInputNV");
70 if (pglFinalCombinerInputNV == NULL) bNvidiaExtensionsSupported = false;
71 pglCombinerOutputNV = (PFUNCGLCOMBINEROUTPUTNVPROC) CoreVideo_GL_GetProcAddress("glCombinerOutputNV");
72 if (pglCombinerOutputNV == NULL) bNvidiaExtensionsSupported = false;
73 pglCombinerInputNV = (PFUNCGLCOMBINERINPUTNVPROC) CoreVideo_GL_GetProcAddress("glCombinerInputNV");
74 if (pglCombinerInputNV == NULL) bNvidiaExtensionsSupported = false;
75 pglCombinerParameteriNV = (PFUNCGLCOMBINERPARAMETERINVPROC) CoreVideo_GL_GetProcAddress("glCombinerParameteriNV");
76 if (pglCombinerParameteriNV == NULL) bNvidiaExtensionsSupported = false;
78 INIT_ENTRY_POINT(PFUNCGLACTIVETEXTUREPROC, glActiveTexture);
79 INIT_ENTRY_POINT(PFUNCGLACTIVETEXTUREARBPROC, glActiveTextureARB);
80 INIT_ENTRY_POINT(PFUNCGLMULTITEXCOORD2FPROC, glMultiTexCoord2f);
81 INIT_ENTRY_POINT(PFUNCGLMULTITEXCOORD2FVPROC, glMultiTexCoord2fv);
82 INIT_ENTRY_POINT(PFUNCGLDELETEPROGRAMSARBPROC, glDeleteProgramsARB);
83 INIT_ENTRY_POINT(PFUNCGLPROGRAMSTRINGARBPROC, glProgramStringARB);
84 INIT_ENTRY_POINT(PFUNCGLBINDPROGRAMARBPROC, glBindProgramARB);
85 INIT_ENTRY_POINT(PFUNCGLGENPROGRAMSARBPROC, glGenProgramsARB);
86 INIT_ENTRY_POINT(PFUNCGLPROGRAMENVPARAMETER4FVARBPROC, glProgramEnvParameter4fvARB);
87 INIT_ENTRY_POINT(PFUNCGLFOGCOORDPOINTEREXTPROC, glFogCoordPointerEXT);
88 INIT_ENTRY_POINT(PFUNCGLCLIENTACTIVETEXTUREARBPROC, glClientActiveTextureARB);