| d07c171f |
1 | /* OGLExtensions.h |
| 2 | Copyright (C) 2009 Richard Goedeken |
| 3 | |
| 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. |
| 8 | |
| 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. |
| 13 | |
| 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. |
| 17 | */ |
| 18 | |
| 19 | /* This header file contains function pointers to some OpenGL functions */ |
| 20 | /* This is only necessary because Windows does not contain development support for OpenGL versions beyond 1.1 */ |
| 21 | |
| 22 | #if !defined(OGL_EXTENSIONS_H) |
| 23 | #define OGL_EXTENSIONS_H |
| 24 | |
| 25 | #ifdef HAVE_GLES |
| 26 | #include <SDL_opengles.h> |
| 27 | #define APIENTRYP GL_API |
| 28 | #else |
| 29 | #include <SDL_opengl.h> |
| 30 | #endif |
| 31 | |
| 32 | /* Just call this one function to load up the function pointers. */ |
| 33 | void OGLExtensions_Init(void); |
| 34 | |
| 35 | /* The function pointer types are defined here because as of 2009 some OpenGL drivers under Linux do 'incorrect' things which |
| 36 | mess up the SDL_opengl.h header, resulting in no function pointer typedefs at all, and thus compilation errors. |
| 37 | */ |
| 38 | #ifdef HAVE_GLES |
| 39 | static void myglMultiTexCoord2f(GLenum target, GLfloat s, GLfloat t) |
| 40 | { |
| 41 | glMultiTexCoord4f(target, s, t, 0.0f, 1.0f); |
| 42 | } |
| 43 | static void myglMultiTexCoord2fv(GLenum target, const GLfloat *v) |
| 44 | { |
| 45 | glMultiTexCoord4f(target, v[0], v[1], 0.0f, 1.0f); |
| 46 | } |
| 47 | |
| 48 | #define pglActiveTexture glActiveTexture |
| 49 | #define pglActiveTextureARB glActiveTexture |
| 50 | #define pglMultiTexCoord2f myglMultiTexCoord2f |
| 51 | #define pglMultiTexCoord2fv myglMultiTexCoord2fv |
| 52 | #define pglDeleteProgramsARB(a,b) {} |
| 53 | #define pglProgramStringARB(a,b,c,d) {} |
| 54 | #define pglBindProgramARB(a,b) {} |
| 55 | #define pglGenProgramsARB(a,b) {} |
| 56 | #define pglProgramEnvParameter4fvARB(a,b,c) {} |
| 57 | #define pglFogCoordPointerEXT(a,b,c) {} |
| 58 | #define pglClientActiveTextureARB glClientActiveTexture |
| 59 | |
| 60 | #else |
| 61 | typedef void (APIENTRYP PFUNCGLCOMBINERPARAMETERFVNVPROC) (GLenum pname, const GLfloat *params); |
| 62 | typedef void (APIENTRYP PFUNCGLFINALCOMBINERINPUTNVPROC) (GLenum variable, GLenum input, GLenum mapping, GLenum componentUsage); |
| 63 | typedef void (APIENTRYP PFUNCGLCOMBINEROUTPUTNVPROC) (GLenum stage, GLenum portion, GLenum abOutput, GLenum cdOutput, GLenum sumOutput, GLenum scale, GLenum bias, GLboolean abDotProduct, GLboolean cdDotProduct, GLboolean muxSum); |
| 64 | typedef void (APIENTRYP PFUNCGLCOMBINERINPUTNVPROC) (GLenum stage, GLenum portion, GLenum variable, GLenum input, GLenum mapping, GLenum componentUsage); |
| 65 | typedef void (APIENTRYP PFUNCGLCOMBINERPARAMETERINVPROC) (GLenum pname, GLint param); |
| 66 | |
| 67 | typedef void (APIENTRYP PFUNCGLACTIVETEXTUREPROC) (GLenum texture); |
| 68 | typedef void (APIENTRYP PFUNCGLACTIVETEXTUREARBPROC) (GLenum texture); |
| 69 | typedef void (APIENTRYP PFUNCGLMULTITEXCOORD2FPROC) (GLenum target, GLfloat s, GLfloat t); |
| 70 | typedef void (APIENTRYP PFUNCGLMULTITEXCOORD2FVPROC) (GLenum target, const GLfloat *v); |
| 71 | typedef void (APIENTRYP PFUNCGLDELETEPROGRAMSARBPROC) (GLsizei n, const GLuint *programs); |
| 72 | typedef void (APIENTRYP PFUNCGLPROGRAMSTRINGARBPROC) (GLenum target, GLenum format, GLsizei len, const GLvoid *string); |
| 73 | typedef void (APIENTRYP PFUNCGLBINDPROGRAMARBPROC) (GLenum target, GLuint program); |
| 74 | typedef void (APIENTRYP PFUNCGLGENPROGRAMSARBPROC) (GLsizei n, GLuint *programs); |
| 75 | typedef void (APIENTRYP PFUNCGLPROGRAMENVPARAMETER4FVARBPROC) (GLenum target, GLuint index, const GLfloat *params); |
| 76 | typedef void (APIENTRYP PFUNCGLFOGCOORDPOINTEREXTPROC) (GLenum type, GLsizei stride, const GLvoid *pointer); |
| 77 | typedef void (APIENTRYP PFUNCGLCLIENTACTIVETEXTUREARBPROC) (GLenum texture); |
| 78 | #endif |
| 79 | extern bool bNvidiaExtensionsSupported; |
| 80 | #ifndef HAVE_GLES |
| 81 | extern PFUNCGLCOMBINERPARAMETERFVNVPROC pglCombinerParameterfvNV; |
| 82 | extern PFUNCGLFINALCOMBINERINPUTNVPROC pglFinalCombinerInputNV; |
| 83 | extern PFUNCGLCOMBINEROUTPUTNVPROC pglCombinerOutputNV; |
| 84 | extern PFUNCGLCOMBINERINPUTNVPROC pglCombinerInputNV; |
| 85 | extern PFUNCGLCOMBINERPARAMETERINVPROC pglCombinerParameteriNV; |
| 86 | |
| 87 | extern PFUNCGLACTIVETEXTUREPROC pglActiveTexture; |
| 88 | extern PFUNCGLACTIVETEXTUREARBPROC pglActiveTextureARB; |
| 89 | extern PFUNCGLMULTITEXCOORD2FPROC pglMultiTexCoord2f; |
| 90 | extern PFUNCGLMULTITEXCOORD2FVPROC pglMultiTexCoord2fv; |
| 91 | extern PFUNCGLDELETEPROGRAMSARBPROC pglDeleteProgramsARB; |
| 92 | extern PFUNCGLPROGRAMSTRINGARBPROC pglProgramStringARB; |
| 93 | extern PFUNCGLBINDPROGRAMARBPROC pglBindProgramARB; |
| 94 | extern PFUNCGLGENPROGRAMSARBPROC pglGenProgramsARB; |
| 95 | extern PFUNCGLPROGRAMENVPARAMETER4FVARBPROC pglProgramEnvParameter4fvARB; |
| 96 | extern PFUNCGLFOGCOORDPOINTEREXTPROC pglFogCoordPointerEXT; |
| 97 | extern PFUNCGLCLIENTACTIVETEXTUREARBPROC pglClientActiveTextureARB; |
| 98 | #endif |
| 99 | #endif // OGL_EXTENSIONS_H |
| 100 | |
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