| 1 | /* |
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| 2 | ATI fragment shader Extension program file. |
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| 3 | setup by NFZ |
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| 4 | extracted from ATI 8500 SDK |
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| 5 | |
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| 6 | ** GL_ATI_fragment_shader |
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| 7 | ** |
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| 8 | ** Support: |
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| 9 | ** Rage 128 * based : Not Supported |
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| 10 | ** Radeon * based : Not Supported |
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| 11 | ** R200 * based : Supported |
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| 12 | ** R200 : 8500, 9000, 9100, 9200 |
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| 13 | ** also works on R300 but pointless since ARBFP1.0 supported |
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| 14 | */ |
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| 15 | |
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| 16 | #include "OgreGLATIFSInit.h" |
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| 17 | #include "OgreGLPrerequisites.h" |
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| 18 | |
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| 19 | // ATI_fragment_program functions |
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| 20 | PFNGLGENFRAGMENTSHADERSATIPROC glGenFragmentShadersATI_ptr=NULL; |
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| 21 | PFNGLBINDFRAGMENTSHADERATIPROC glBindFragmentShaderATI_ptr=NULL; |
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| 22 | PFNGLDELETEFRAGMENTSHADERATIPROC glDeleteFragmentShaderATI_ptr=NULL; |
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| 23 | PFNGLBEGINFRAGMENTSHADERATIPROC glBeginFragmentShaderATI_ptr=NULL; |
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| 24 | PFNGLENDFRAGMENTSHADERATIPROC glEndFragmentShaderATI_ptr=NULL; |
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| 25 | PFNGLPASSTEXCOORDATIPROC glPassTexCoordATI_ptr=NULL; |
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| 26 | PFNGLSAMPLEMAPATIPROC glSampleMapATI_ptr=NULL; |
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| 27 | PFNGLCOLORFRAGMENTOP1ATIPROC glColorFragmentOp1ATI_ptr=NULL; |
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| 28 | PFNGLCOLORFRAGMENTOP2ATIPROC glColorFragmentOp2ATI_ptr=NULL; |
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| 29 | PFNGLCOLORFRAGMENTOP3ATIPROC glColorFragmentOp3ATI_ptr=NULL; |
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| 30 | PFNGLALPHAFRAGMENTOP1ATIPROC glAlphaFragmentOp1ATI_ptr=NULL; |
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| 31 | PFNGLALPHAFRAGMENTOP2ATIPROC glAlphaFragmentOp2ATI_ptr=NULL; |
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| 32 | PFNGLALPHAFRAGMENTOP3ATIPROC glAlphaFragmentOp3ATI_ptr=NULL; |
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| 33 | PFNGLSETFRAGMENTSHADERCONSTANTATIPROC glSetFragmentShaderConstantATI_ptr=NULL; |
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| 34 | |
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| 35 | bool InitATIFragmentShaderExtensions(Ogre::GLSupport& glSupport) |
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| 36 | { |
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| 37 | static bool init = false; |
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| 38 | //char *extList; |
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| 39 | |
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| 40 | if(init) return init; |
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| 41 | |
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| 42 | |
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| 43 | /* confirm that the version of OpenGL supports ATI fragment shader */ |
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| 44 | /* done in GLRenderSystem |
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| 45 | extList = (char *)glGetString(GL_EXTENSIONS); |
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| 46 | |
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| 47 | if (strstr(extList, "GL_ATI_fragment_shader") == NULL) { |
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| 48 | //MessageBox(NULL, "GL_ATI_fragment_shader extension not supported", "GL Extension error", MB_OK); |
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| 49 | // ** should raise exception |
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| 50 | init = false; |
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| 51 | return false; |
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| 52 | } |
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| 53 | |
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| 54 | */ |
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| 55 | |
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| 56 | |
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| 57 | glGenFragmentShadersATI_ptr = (PFNGLGENFRAGMENTSHADERSATIPROC) glSupport.getProcAddress("glGenFragmentShadersATI"); |
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| 58 | glBindFragmentShaderATI_ptr = (PFNGLBINDFRAGMENTSHADERATIPROC) glSupport.getProcAddress("glBindFragmentShaderATI"); |
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| 59 | glDeleteFragmentShaderATI_ptr = (PFNGLDELETEFRAGMENTSHADERATIPROC) glSupport.getProcAddress("glDeleteFragmentShaderATI"); |
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| 60 | glBeginFragmentShaderATI_ptr = (PFNGLBEGINFRAGMENTSHADERATIPROC) glSupport.getProcAddress("glBeginFragmentShaderATI"); |
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| 61 | glEndFragmentShaderATI_ptr = (PFNGLENDFRAGMENTSHADERATIPROC) glSupport.getProcAddress("glEndFragmentShaderATI"); |
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| 62 | glPassTexCoordATI_ptr = (PFNGLPASSTEXCOORDATIPROC) glSupport.getProcAddress("glPassTexCoordATI"); |
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| 63 | glSampleMapATI_ptr = (PFNGLSAMPLEMAPATIPROC) glSupport.getProcAddress("glSampleMapATI"); |
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| 64 | glColorFragmentOp1ATI_ptr = (PFNGLCOLORFRAGMENTOP1ATIPROC) glSupport.getProcAddress("glColorFragmentOp1ATI"); |
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| 65 | glColorFragmentOp2ATI_ptr = (PFNGLCOLORFRAGMENTOP2ATIPROC) glSupport.getProcAddress("glColorFragmentOp2ATI"); |
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| 66 | glColorFragmentOp3ATI_ptr = (PFNGLCOLORFRAGMENTOP3ATIPROC) glSupport.getProcAddress("glColorFragmentOp3ATI"); |
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| 67 | glAlphaFragmentOp1ATI_ptr = (PFNGLALPHAFRAGMENTOP1ATIPROC) glSupport.getProcAddress("glAlphaFragmentOp1ATI"); |
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| 68 | glAlphaFragmentOp2ATI_ptr = (PFNGLALPHAFRAGMENTOP2ATIPROC) glSupport.getProcAddress("glAlphaFragmentOp2ATI"); |
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| 69 | glAlphaFragmentOp3ATI_ptr = (PFNGLALPHAFRAGMENTOP3ATIPROC) glSupport.getProcAddress("glAlphaFragmentOp3ATI"); |
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| 70 | glSetFragmentShaderConstantATI_ptr = (PFNGLSETFRAGMENTSHADERCONSTANTATIPROC) glSupport.getProcAddress("glSetFragmentShaderConstantATI"); |
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| 71 | |
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| 72 | if (glGenFragmentShadersATI_ptr == NULL) return false; |
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| 73 | |
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| 74 | if (glBindFragmentShaderATI_ptr == NULL) return false; |
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| 75 | |
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| 76 | if (glDeleteFragmentShaderATI_ptr == NULL) return false; |
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| 77 | |
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| 78 | if (glBeginFragmentShaderATI_ptr == NULL) return false; |
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| 79 | |
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| 80 | if (glEndFragmentShaderATI_ptr == NULL) return false; |
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| 81 | |
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| 82 | if (glPassTexCoordATI_ptr == NULL) return false; |
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| 83 | |
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| 84 | if (glColorFragmentOp1ATI_ptr == NULL) return false; |
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| 85 | |
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| 86 | if (glColorFragmentOp2ATI_ptr == NULL) return false; |
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| 87 | |
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| 88 | if (glColorFragmentOp3ATI_ptr == NULL) return false; |
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| 89 | |
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| 90 | if (glAlphaFragmentOp1ATI_ptr == NULL) return false; |
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| 91 | |
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| 92 | if (glAlphaFragmentOp2ATI_ptr == NULL) return false; |
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| 93 | |
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| 94 | if (glAlphaFragmentOp2ATI_ptr == NULL) return false; |
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| 95 | |
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| 96 | if (glAlphaFragmentOp3ATI_ptr == NULL) return false; |
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| 97 | |
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| 98 | if (glSetFragmentShaderConstantATI_ptr == NULL) return false; |
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| 99 | |
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| 100 | init = true; |
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| 101 | |
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| 102 | return true; |
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| 103 | } |
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| 104 | |
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