Rice Video Plugin for GLES1.1

[mupen64plus-pandora.git] / source / rice_gles / src / OGLExtensions.h

diff --git a/source/rice_gles/src/OGLExtensions.h b/source/rice_gles/src/OGLExtensions.h
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+/* OGLExtensions.h
+Copyright (C) 2009 Richard Goedeken
+
+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.
+*/
+
+/* This header file contains function pointers to some OpenGL functions */
+/* This is only necessary because Windows does not contain development support for OpenGL versions beyond 1.1 */
+
+#if !defined(OGL_EXTENSIONS_H)
+#define OGL_EXTENSIONS_H
+
+#ifdef HAVE_GLES
+#include <SDL_opengles.h>
+#define APIENTRYP              GL_API
+#else
+#include <SDL_opengl.h>
+#endif
+
+/* Just call this one function to load up the function pointers. */
+void OGLExtensions_Init(void);
+
+/* The function pointer types are defined here because as of 2009 some OpenGL drivers under Linux do 'incorrect' things which
+   mess up the SDL_opengl.h header, resulting in no function pointer typedefs at all, and thus compilation errors.
+*/
+#ifdef HAVE_GLES
+static void myglMultiTexCoord2f(GLenum target, GLfloat s, GLfloat t)
+{
+       glMultiTexCoord4f(target, s, t, 0.0f, 1.0f);
+}
+static void myglMultiTexCoord2fv(GLenum target, const GLfloat *v)
+{
+       glMultiTexCoord4f(target, v[0], v[1], 0.0f, 1.0f);
+}
+
+#define    pglActiveTexture                    glActiveTexture
+#define    pglActiveTextureARB                 glActiveTexture
+#define    pglMultiTexCoord2f                  myglMultiTexCoord2f
+#define    pglMultiTexCoord2fv                 myglMultiTexCoord2fv
+#define    pglDeleteProgramsARB(a,b)           {}
+#define    pglProgramStringARB(a,b,c,d)                {}
+#define    pglBindProgramARB(a,b)              {}
+#define    pglGenProgramsARB(a,b)              {}
+#define    pglProgramEnvParameter4fvARB(a,b,c) {}
+#define    pglFogCoordPointerEXT(a,b,c)                {}
+#define    pglClientActiveTextureARB           glClientActiveTexture
+
+#else
+typedef void (APIENTRYP PFUNCGLCOMBINERPARAMETERFVNVPROC) (GLenum pname, const GLfloat *params);
+typedef void (APIENTRYP PFUNCGLFINALCOMBINERINPUTNVPROC) (GLenum variable, GLenum input, GLenum mapping, GLenum componentUsage);
+typedef void (APIENTRYP PFUNCGLCOMBINEROUTPUTNVPROC) (GLenum stage, GLenum portion, GLenum abOutput, GLenum cdOutput, GLenum sumOutput, GLenum scale, GLenum bias, GLboolean abDotProduct, GLboolean cdDotProduct, GLboolean muxSum);
+typedef void (APIENTRYP PFUNCGLCOMBINERINPUTNVPROC) (GLenum stage, GLenum portion, GLenum variable, GLenum input, GLenum mapping, GLenum componentUsage);
+typedef void (APIENTRYP PFUNCGLCOMBINERPARAMETERINVPROC) (GLenum pname, GLint param);
+
+typedef void (APIENTRYP PFUNCGLACTIVETEXTUREPROC) (GLenum texture);
+typedef void (APIENTRYP PFUNCGLACTIVETEXTUREARBPROC) (GLenum texture);
+typedef void (APIENTRYP PFUNCGLMULTITEXCOORD2FPROC) (GLenum target, GLfloat s, GLfloat t);
+typedef void (APIENTRYP PFUNCGLMULTITEXCOORD2FVPROC) (GLenum target, const GLfloat *v);
+typedef void (APIENTRYP PFUNCGLDELETEPROGRAMSARBPROC) (GLsizei n, const GLuint *programs);
+typedef void (APIENTRYP PFUNCGLPROGRAMSTRINGARBPROC) (GLenum target, GLenum format, GLsizei len, const GLvoid *string);
+typedef void (APIENTRYP PFUNCGLBINDPROGRAMARBPROC) (GLenum target, GLuint program);
+typedef void (APIENTRYP PFUNCGLGENPROGRAMSARBPROC) (GLsizei n, GLuint *programs);
+typedef void (APIENTRYP PFUNCGLPROGRAMENVPARAMETER4FVARBPROC) (GLenum target, GLuint index, const GLfloat *params);
+typedef void (APIENTRYP PFUNCGLFOGCOORDPOINTEREXTPROC) (GLenum type, GLsizei stride, const GLvoid *pointer);
+typedef void (APIENTRYP PFUNCGLCLIENTACTIVETEXTUREARBPROC) (GLenum texture);
+#endif
+extern bool                                 bNvidiaExtensionsSupported;
+#ifndef HAVE_GLES
+extern PFUNCGLCOMBINERPARAMETERFVNVPROC     pglCombinerParameterfvNV;
+extern PFUNCGLFINALCOMBINERINPUTNVPROC      pglFinalCombinerInputNV;
+extern PFUNCGLCOMBINEROUTPUTNVPROC          pglCombinerOutputNV;
+extern PFUNCGLCOMBINERINPUTNVPROC           pglCombinerInputNV;
+extern PFUNCGLCOMBINERPARAMETERINVPROC      pglCombinerParameteriNV;
+
+extern PFUNCGLACTIVETEXTUREPROC             pglActiveTexture;
+extern PFUNCGLACTIVETEXTUREARBPROC          pglActiveTextureARB;
+extern PFUNCGLMULTITEXCOORD2FPROC           pglMultiTexCoord2f;
+extern PFUNCGLMULTITEXCOORD2FVPROC          pglMultiTexCoord2fv;
+extern PFUNCGLDELETEPROGRAMSARBPROC         pglDeleteProgramsARB;
+extern PFUNCGLPROGRAMSTRINGARBPROC          pglProgramStringARB;
+extern PFUNCGLBINDPROGRAMARBPROC            pglBindProgramARB;
+extern PFUNCGLGENPROGRAMSARBPROC            pglGenProgramsARB;
+extern PFUNCGLPROGRAMENVPARAMETER4FVARBPROC pglProgramEnvParameter4fvARB;
+extern PFUNCGLFOGCOORDPOINTEREXTPROC        pglFogCoordPointerEXT;
+extern PFUNCGLCLIENTACTIVETEXTUREARBPROC    pglClientActiveTextureARB;
+#endif
+#endif  // OGL_EXTENSIONS_H
+