diff options
Diffstat (limited to 'src/oglfunc.c')
| -rw-r--r-- | src/oglfunc.c | 289 |
1 files changed, 210 insertions, 79 deletions
diff --git a/src/oglfunc.c b/src/oglfunc.c index d1ada9a..fba8fe6 100644 --- a/src/oglfunc.c +++ b/src/oglfunc.c @@ -1,3 +1,4 @@ +#include <stdio.h> #include <stdlib.h> #include <string.h> @@ -5,51 +6,86 @@ #include "oglfunc.h" -PFNGLALPHAFUNCPROC pglAlphaFunc; -PFNGLBINDTEXTUREPROC pglBindTexture; -PFNGLBLENDFUNCPROC pglBlendFunc; -PFNGLCLEARPROC pglClear; -PFNGLCLEARCOLORPROC pglClearColor; -PFNGLCOLOR4FPROC pglColor4f; -PFNGLCOLORPOINTERPROC pglColorPointer; -PFNGLCULLFACEPROC pglCullFace; -PFNGLDELETETEXTURESPROC pglDeleteTextures; -PFNGLDEPTHFUNCPROC pglDepthFunc; -PFNGLDEPTHMASKPROC pglDepthMask; -PFNGLDEPTHRANGEPROC pglDepthRange; -PFNGLDISABLEPROC pglDisable; -PFNGLDISABLECLIENTSTATEPROC pglDisableClientState; -PFNGLDRAWELEMENTSPROC pglDrawElements; -PFNGLENABLEPROC pglEnable; -PFNGLENABLECLIENTSTATEPROC pglEnableClientState; -PFNGLFRONTFACEPROC pglFrontFace; -PFNGLGENTEXTURESPROC pglGenTextures; -PFNGLGETERRORPROC pglGetError; -PFNGLGETFLOATVPROC pglGetFloatv; -PFNGLGETINTEGERVPROC pglGetIntegerv; -PFNGLGETSTRINGPROC pglGetString; -PFNGLGETTEXPARAMETERFVPROC pglGetTexParameterfv; -PFNGLHINTPROC pglHint; -PFNGLPIXELSTOREIPROC pglPixelStorei; -PFNGLPOLYGONOFFSETPROC pglPolygonOffset; -PFNGLREADPIXELSPROC pglReadPixels; -PFNGLSHADEMODELPROC pglShadeModel; -PFNGLTEXCOORDPOINTERPROC pglTexCoordPointer; -PFNGLTEXENVFPROC pglTexEnvf; -PFNGLTEXENVFVPROC pglTexEnvfv; -PFNGLTEXENVIPROC pglTexEnvi; -PFNGLTEXIMAGE2DPROC pglTexImage2D; -PFNGLTEXPARAMETERFPROC pglTexParameterf; -PFNGLTEXPARAMETERIPROC pglTexParameteri; -PFNGLTEXSUBIMAGE2DPROC pglTexSubImage2D; -PFNGLVERTEXPOINTERPROC pglVertexPointer; -PFNGLVIEWPORTPROC pglViewport; +// Base OpenGL / OpenGL ES +avpPFNGLACTIVETEXTUREPROC pglActiveTexture; +avpPFNGLBINDTEXTUREPROC pglBindTexture; +avpPFNGLBLENDFUNCPROC pglBlendFunc; +avpPFNGLCLEARPROC pglClear; +avpPFNGLCLEARCOLORPROC pglClearColor; +avpPFNGLCULLFACEPROC pglCullFace; +avpPFNGLDELETETEXTURESPROC pglDeleteTextures; +avpPFNGLDEPTHFUNCPROC pglDepthFunc; +avpPFNGLDEPTHMASKPROC pglDepthMask; +avpPFNGLDEPTHRANGEPROC pglDepthRange; +avpPFNGLDISABLEPROC pglDisable; +avpPFNGLDRAWELEMENTSPROC pglDrawElements; +avpPFNGLENABLEPROC pglEnable; +avpPFNGLFRONTFACEPROC pglFrontFace; +avpPFNGLGENTEXTURESPROC pglGenTextures; +avpPFNGLGETERRORPROC pglGetError; +avpPFNGLGETFLOATVPROC pglGetFloatv; +avpPFNGLGETINTEGERVPROC pglGetIntegerv; +avpPFNGLGETSTRINGPROC pglGetString; +avpPFNGLGETTEXPARAMETERFVPROC pglGetTexParameterfv; +avpPFNGLHINTPROC pglHint; +avpPFNGLPIXELSTOREIPROC pglPixelStorei; +avpPFNGLPOLYGONOFFSETPROC pglPolygonOffset; +avpPFNGLREADPIXELSPROC pglReadPixels; +avpPFNGLTEXIMAGE2DPROC pglTexImage2D; +avpPFNGLTEXPARAMETERFPROC pglTexParameterf; +avpPFNGLTEXPARAMETERIPROC pglTexParameteri; +avpPFNGLTEXSUBIMAGE2DPROC pglTexSubImage2D; +avpPFNGLVIEWPORTPROC pglViewport; + +// OpenGL 2.1 / OpenGL ES 2.0 +avpPFNGLATTACHSHADERPROC pglAttachShader; +avpPFNGLBINDATTRIBLOCATIONPROC pglBindAttribLocation; +avpPFNGLBINDBUFFERPROC pglBindBuffer; +avpPFNGLBUFFERDATAPROC pglBufferData; +avpPFNGLBUFFERSUBDATAPROC pglBufferSubData; +avpPFNGLCREATEPROGRAMPROC pglCreateProgram; +avpPFNGLCREATESHADERPROC pglCreateShader; +avpPFNGLCOMPILESHADERPROC pglCompileShader; +avpPFNGLDELETEBUFFERSPROC pglDeleteBuffers; +avpPFNGLDELETEPROGRAMPROC pglDeleteProgram; +avpPFNGLDELETESHADERPROC pglDeleteShader; +avpPFNGLDISABLEVERTEXATTRIBARRAYPROC pglDisableVertexAttribArray; +avpPFNGLENABLEVERTEXATTRIBARRAYPROC pglEnableVertexAttribArray; +avpPFNGLGENBUFFERSPROC pglGenBuffers; +avpPFNGLGETATTRIBLOCATIONPROC pglGetAttribLocation; +avpPFNGLGETPROGRAMINFOLOGPROC pglGetProgramInfoLog; +avpPFNGLGETPROGRAMIVPROC pglGetProgramiv; +avpPFNGLGETSHADERINFOLOGPROC pglGetShaderInfoLog; +avpPFNGLGETSHADERIVPROC pglGetShaderiv; +avpPFNGLGETUNIFORMLOCATIONPROC pglGetUniformLocation; +avpPFNGLLINKPROGRAMPROC pglLinkProgram; +avpPFNGLSHADERSOURCEPROC pglShaderSource; +avpPFNGLVALIDATEPROGRAMPROC pglValidateProgram; +avpPFNGLVERTEXATTRIBPOINTERPROC pglVertexAttribPointer; +avpPFNGLUNIFORM1IPROC pglUniform1i; +avpPFNGLUNIFORMMATRIX4FVPROC pglUniformMatrix4fv; +avpPFNGLUSEPROGRAMPROC pglUseProgram; + +// GL_EXT_framebuffer_object / GL_ARB_framebuffer_object / OpenGL ES 2.0 +avpPFNGLBINDFRAMEBUFFERPROC pglBindFramebuffer; +avpPFNGLBINDRENDERBUFFERPROC pglBindRenderbuffer; +avpPFNGLCHECKFRAMEBUFFERSTATUSPROC pglCheckFramebufferStatus; +avpPFNGLDELETEFRAMEBUFFERSPROC pglDeleteFramebuffers; +avpPFNGLDELETERENDERBUFFERSPROC pglDeleteRenderbuffers; +avpPFNGLFRAMEBUFFERRENDERBUFFERPROC pglFramebufferRenderbuffer; +avpPFNGLFRAMEBUFFERTEXTURE2DPROC pglFramebufferTexture2D; +avpPFNGLGENERATEMIPMAPPROC pglGenerateMipmap; +avpPFNGLGENFRAMEBUFFERSPROC pglGenFramebuffers; +avpPFNGLGENRENDERBUFFERSPROC pglGenRenderbuffers; +avpPFNGLRENDERBUFFERSTORAGEPROC pglRenderbufferStorage; int ogl_have_multisample_filter_hint; int ogl_have_texture_filter_anisotropic; +int ogl_have_framebuffer_object; int ogl_use_multisample_filter_hint; int ogl_use_texture_filter_anisotropic; +int ogl_use_framebuffer_object; static void dummyfunc() { @@ -73,6 +109,20 @@ static void dummyfunc() LoadOGLProc_(type, func1, func2); \ } +#define LoadOGLExtProc(e, type, func) \ + if ((e)) { \ + LoadOGLProc(type, func); \ + } else { \ + p##func = NULL; \ + } + +#define LoadOGLExtProc2(e, type, func1, func2) \ + if ((e)) { \ + LoadOGLProc2(type, func1, func2); \ + } else { \ + p##func = NULL; \ + } + static int check_token(const char *string, const char *token) { const char *s = string; @@ -98,47 +148,71 @@ void load_ogl_functions(int mode) const char* ogl_missing_func; const char* ext; + int base_framebuffer_object; + int ext_framebuffer_object; + int arb_framebuffer_object; + ogl_missing_func = NULL; - LoadOGLProc(PFNGLALPHAFUNCPROC, glAlphaFunc); - LoadOGLProc(PFNGLBINDTEXTUREPROC, glBindTexture); - LoadOGLProc(PFNGLBLENDFUNCPROC, glBlendFunc); - LoadOGLProc(PFNGLCLEARPROC, glClear); - LoadOGLProc(PFNGLCLEARCOLORPROC, glClearColor); - LoadOGLProc(PFNGLCOLOR4FPROC, glColor4f); - LoadOGLProc(PFNGLCOLORPOINTERPROC, glColorPointer); - LoadOGLProc(PFNGLCULLFACEPROC, glCullFace); - LoadOGLProc(PFNGLDELETETEXTURESPROC, glDeleteTextures); - LoadOGLProc(PFNGLDEPTHFUNCPROC, glDepthFunc); - LoadOGLProc(PFNGLDEPTHMASKPROC, glDepthMask); - LoadOGLProc2(PFNGLDEPTHRANGEPROC, glDepthRange, glDepthRangef); - LoadOGLProc(PFNGLDISABLEPROC, glDisable); - LoadOGLProc(PFNGLDISABLECLIENTSTATEPROC, glDisableClientState); - LoadOGLProc(PFNGLDRAWELEMENTSPROC, glDrawElements); - LoadOGLProc(PFNGLENABLEPROC, glEnable); - LoadOGLProc(PFNGLENABLECLIENTSTATEPROC, glEnableClientState); - LoadOGLProc(PFNGLFRONTFACEPROC, glFrontFace); - LoadOGLProc(PFNGLGENTEXTURESPROC, glGenTextures); - LoadOGLProc(PFNGLGETERRORPROC, glGetError); - LoadOGLProc(PFNGLGETFLOATVPROC, glGetFloatv); - LoadOGLProc(PFNGLGETINTEGERVPROC, glGetIntegerv); - LoadOGLProc(PFNGLGETSTRINGPROC, glGetString); - LoadOGLProc(PFNGLGETTEXPARAMETERFVPROC, glGetTexParameterfv); - LoadOGLProc(PFNGLHINTPROC, glHint); - LoadOGLProc(PFNGLPIXELSTOREIPROC, glPixelStorei); - LoadOGLProc(PFNGLPOLYGONOFFSETPROC, glPolygonOffset); - LoadOGLProc(PFNGLREADPIXELSPROC, glReadPixels); - LoadOGLProc(PFNGLSHADEMODELPROC, glShadeModel); - LoadOGLProc(PFNGLTEXCOORDPOINTERPROC, glTexCoordPointer); - LoadOGLProc(PFNGLTEXENVFPROC, glTexEnvf); - LoadOGLProc(PFNGLTEXENVFVPROC, glTexEnvfv); - LoadOGLProc(PFNGLTEXENVIPROC, glTexEnvi); - LoadOGLProc(PFNGLTEXIMAGE2DPROC, glTexImage2D); - LoadOGLProc(PFNGLTEXPARAMETERFPROC, glTexParameterf); - LoadOGLProc(PFNGLTEXPARAMETERIPROC, glTexParameteri); - LoadOGLProc(PFNGLTEXSUBIMAGE2DPROC, glTexSubImage2D); - LoadOGLProc(PFNGLVERTEXPOINTERPROC, glVertexPointer); - LoadOGLProc(PFNGLVIEWPORTPROC, glViewport); + // Base OpenGL / OpenGL ES + LoadOGLProc(avpPFNGLACTIVETEXTUREPROC, glActiveTexture); + LoadOGLProc(avpPFNGLBINDTEXTUREPROC, glBindTexture); + LoadOGLProc(avpPFNGLBLENDFUNCPROC, glBlendFunc); + LoadOGLProc(avpPFNGLCLEARPROC, glClear); + LoadOGLProc(avpPFNGLCLEARCOLORPROC, glClearColor); + LoadOGLProc(avpPFNGLCULLFACEPROC, glCullFace); + LoadOGLProc(avpPFNGLDELETETEXTURESPROC, glDeleteTextures); + LoadOGLProc(avpPFNGLDEPTHFUNCPROC, glDepthFunc); + LoadOGLProc(avpPFNGLDEPTHMASKPROC, glDepthMask); + LoadOGLProc2(avpPFNGLDEPTHRANGEPROC, glDepthRange, glDepthRangef); + LoadOGLProc(avpPFNGLDISABLEPROC, glDisable); + LoadOGLProc(avpPFNGLDRAWELEMENTSPROC, glDrawElements); + LoadOGLProc(avpPFNGLENABLEPROC, glEnable); + LoadOGLProc(avpPFNGLFRONTFACEPROC, glFrontFace); + LoadOGLProc(avpPFNGLGENTEXTURESPROC, glGenTextures); + LoadOGLProc(avpPFNGLGETERRORPROC, glGetError); + LoadOGLProc(avpPFNGLGETFLOATVPROC, glGetFloatv); + LoadOGLProc(avpPFNGLGETINTEGERVPROC, glGetIntegerv); + LoadOGLProc(avpPFNGLGETSTRINGPROC, glGetString); + LoadOGLProc(avpPFNGLGETTEXPARAMETERFVPROC, glGetTexParameterfv); + LoadOGLProc(avpPFNGLHINTPROC, glHint); + LoadOGLProc(avpPFNGLPIXELSTOREIPROC, glPixelStorei); + LoadOGLProc(avpPFNGLPOLYGONOFFSETPROC, glPolygonOffset); + LoadOGLProc(avpPFNGLREADPIXELSPROC, glReadPixels); + LoadOGLProc(avpPFNGLTEXIMAGE2DPROC, glTexImage2D); + LoadOGLProc(avpPFNGLTEXPARAMETERFPROC, glTexParameterf); + LoadOGLProc(avpPFNGLTEXPARAMETERIPROC, glTexParameteri); + LoadOGLProc(avpPFNGLTEXSUBIMAGE2DPROC, glTexSubImage2D); + LoadOGLProc(avpPFNGLVIEWPORTPROC, glViewport); + + // OpenGL 2.1 / OpenGL ES 2.0 + LoadOGLProc(avpPFNGLATTACHSHADERPROC, glAttachShader); + LoadOGLProc(avpPFNGLBINDATTRIBLOCATIONPROC, glBindAttribLocation); + LoadOGLProc(avpPFNGLBINDBUFFERPROC, glBindBuffer); + LoadOGLProc(avpPFNGLBUFFERDATAPROC, glBufferData); + LoadOGLProc(avpPFNGLBUFFERSUBDATAPROC, glBufferSubData); + LoadOGLProc(avpPFNGLCREATEPROGRAMPROC, glCreateProgram); + LoadOGLProc(avpPFNGLCREATESHADERPROC, glCreateShader); + LoadOGLProc(avpPFNGLCOMPILESHADERPROC, glCompileShader); + LoadOGLProc(avpPFNGLDELETEBUFFERSPROC, glDeleteBuffers); + LoadOGLProc(avpPFNGLDELETEPROGRAMPROC, glDeleteProgram); + LoadOGLProc(avpPFNGLDELETESHADERPROC, glDeleteShader); + LoadOGLProc(avpPFNGLDISABLEVERTEXATTRIBARRAYPROC, glDisableVertexAttribArray); + LoadOGLProc(avpPFNGLENABLEVERTEXATTRIBARRAYPROC, glEnableVertexAttribArray); + LoadOGLProc(avpPFNGLGENBUFFERSPROC, glGenBuffers); + LoadOGLProc(avpPFNGLGETATTRIBLOCATIONPROC, glGetAttribLocation); + LoadOGLProc(avpPFNGLGETPROGRAMINFOLOGPROC, glGetProgramInfoLog); + LoadOGLProc(avpPFNGLGETPROGRAMIVPROC, glGetProgramiv); + LoadOGLProc(avpPFNGLGETSHADERINFOLOGPROC, glGetShaderInfoLog); + LoadOGLProc(avpPFNGLGETSHADERIVPROC, glGetShaderiv); + LoadOGLProc(avpPFNGLGETUNIFORMLOCATIONPROC, glGetUniformLocation); + LoadOGLProc(avpPFNGLLINKPROGRAMPROC, glLinkProgram); + LoadOGLProc(avpPFNGLSHADERSOURCEPROC, glShaderSource); + LoadOGLProc(avpPFNGLVALIDATEPROGRAMPROC, glValidateProgram); + LoadOGLProc(avpPFNGLVERTEXATTRIBPOINTERPROC, glVertexAttribPointer); + LoadOGLProc(avpPFNGLUNIFORM1IPROC, glUniform1i); + LoadOGLProc(avpPFNGLUNIFORMMATRIX4FVPROC, glUniformMatrix4fv); + LoadOGLProc(avpPFNGLUSEPROGRAMPROC, glUseProgram); if (!mode) { return; @@ -153,17 +227,74 @@ void load_ogl_functions(int mode) printf("GL_VENDOR: %s\n", pglGetString(GL_VENDOR)); printf("GL_RENDERER: %s\n", pglGetString(GL_RENDERER)); printf("GL_VERSION: %s\n", pglGetString(GL_VERSION)); - //printf("GL_SHADING_LANGUAGE_VERSION: %s\n", pglGetString(GL_SHADING_LANGUAGE_VERSION)); + printf("GL_SHADING_LANGUAGE_VERSION: %s\n", pglGetString(GL_SHADING_LANGUAGE_VERSION)); printf("GL_EXTENSIONS: %s\n", pglGetString(GL_EXTENSIONS)); #endif ext = (const char *) pglGetString(GL_EXTENSIONS); + // GL_EXT_framebuffer_object / GL_ARB_framebuffer_object / OpenGL ES 2.0 + // figure out which version of framebuffer objects to use, if any + ext_framebuffer_object = check_token(ext, "GL_EXT_framebuffer_object"); + arb_framebuffer_object = check_token(ext, "GL_ARB_framebuffer_object"); + +#if defined(USE_OPENGL_ES) + // not quite right as ARB fbo includes functionality not present in ES2. + base_framebuffer_object = 1; +#else + base_framebuffer_object = arb_framebuffer_object; +#endif + + ogl_missing_func = NULL; + LoadOGLExtProc(base_framebuffer_object, avpPFNGLBINDFRAMEBUFFERPROC, glBindFramebuffer); + LoadOGLExtProc(base_framebuffer_object, avpPFNGLBINDRENDERBUFFERPROC, glBindRenderbuffer); + LoadOGLExtProc(base_framebuffer_object, avpPFNGLCHECKFRAMEBUFFERSTATUSPROC, glCheckFramebufferStatus); + LoadOGLExtProc(base_framebuffer_object, avpPFNGLDELETEFRAMEBUFFERSPROC, glDeleteFramebuffers); + LoadOGLExtProc(base_framebuffer_object, avpPFNGLDELETERENDERBUFFERSPROC, glDeleteRenderbuffers); + LoadOGLExtProc(base_framebuffer_object, avpPFNGLFRAMEBUFFERRENDERBUFFERPROC, glFramebufferRenderbuffer); + LoadOGLExtProc(base_framebuffer_object, avpPFNGLFRAMEBUFFERTEXTURE2DPROC, glFramebufferTexture2D); + LoadOGLExtProc(base_framebuffer_object, avpPFNGLGENERATEMIPMAPPROC, glGenerateMipmap); + LoadOGLExtProc(base_framebuffer_object, avpPFNGLGENFRAMEBUFFERSPROC, glGenFramebuffers); + LoadOGLExtProc(base_framebuffer_object, avpPFNGLGENRENDERBUFFERSPROC, glGenRenderbuffers); + LoadOGLExtProc(base_framebuffer_object, avpPFNGLRENDERBUFFERSTORAGEPROC, glRenderbufferStorage); + if (base_framebuffer_object != 0 && ogl_missing_func == NULL) { + ogl_have_framebuffer_object = 1; + +#if !defined(NDEBUG) + printf("ARB/ES2 framebuffer objects enabled.\n"); +#endif + } + + if (ext_framebuffer_object != 0 && ogl_have_framebuffer_object == 0) { + // try the EXT suffixed functions + ogl_missing_func = NULL; + LoadOGLProc_(avpPFNGLBINDFRAMEBUFFERPROC, glBindFramebuffer, glBindFramebufferEXT); + LoadOGLProc_(avpPFNGLBINDRENDERBUFFERPROC, glBindRenderbuffer, glBindRenderbufferEXT); + LoadOGLProc_(avpPFNGLCHECKFRAMEBUFFERSTATUSPROC, glCheckFramebufferStatus, glCheckFramebufferStatusEXT); + LoadOGLProc_(avpPFNGLDELETEFRAMEBUFFERSPROC, glDeleteFramebuffers, glDeleteFramebuffersEXT); + LoadOGLProc_(avpPFNGLDELETERENDERBUFFERSPROC, glDeleteRenderbuffers, glDeleteRenderbuffersEXT); + LoadOGLProc_(avpPFNGLFRAMEBUFFERRENDERBUFFERPROC, glFramebufferRenderbuffer, glFramebufferRenderbufferEXT); + LoadOGLProc_(avpPFNGLFRAMEBUFFERTEXTURE2DPROC, glFramebufferTexture2D, glFramebufferTexture2DEXT); + LoadOGLProc_(avpPFNGLGENERATEMIPMAPPROC, glGenerateMipmap, glGenerateMipmapEXT); + LoadOGLProc_(avpPFNGLGENFRAMEBUFFERSPROC, glGenFramebuffers, glGenFramebuffersEXT); + LoadOGLProc_(avpPFNGLGENRENDERBUFFERSPROC, glGenRenderbuffers, glGenRenderbuffersEXT); + LoadOGLProc_(avpPFNGLRENDERBUFFERSTORAGEPROC, glRenderbufferStorage, glRenderbufferStorageEXT); + if (ogl_missing_func == NULL) { + ogl_have_framebuffer_object = 1; + +#if !defined(NDEBUG) + printf("EXT framebuffer objects enabled.\n"); +#endif + } + } + + // other extensions ogl_have_multisample_filter_hint = check_token(ext, "GL_NV_multisample_filter_hint"); ogl_have_texture_filter_anisotropic = check_token(ext, "GL_EXT_texture_filter_anisotropic"); ogl_use_multisample_filter_hint = ogl_have_multisample_filter_hint; ogl_use_texture_filter_anisotropic = ogl_have_texture_filter_anisotropic; + ogl_use_framebuffer_object = ogl_have_framebuffer_object; } int check_for_errors_(const char *file, int line) |