mirror of https://github.com/mpv-player/mpv
Less ugly and easier to extend getFunctions
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@17336 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
reimar
parent
e20d2d8c60
commit
c9c88c1530
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@ -246,6 +246,41 @@ static void *setNull(const GLubyte *s) {
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return NULL;
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}
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typedef struct {
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void **funcptr;
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char *extstr;
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char *funcnames[7];
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} extfunc_desc_t;
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static const extfunc_desc_t extfuncs[] = {
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{(void **)&GenBuffers, NULL, {"glGenBuffers", "glGenBuffersARB", NULL}},
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{(void **)&DeleteBuffers, NULL, {"glDeleteBuffers", "glDeleteBuffersARB", NULL}},
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{(void **)&BindBuffer, NULL, {"glBindBuffer", "glBindBufferARB", NULL}},
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{(void **)&MapBuffer, NULL, {"glMapBuffer", "glMapBufferARB", NULL}},
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{(void **)&UnmapBuffer, NULL, {"glUnmapBuffer", "glUnmapBufferARB", NULL}},
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{(void **)&BufferData, NULL, {"glBufferData", "glBufferDataARB", NULL}},
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{(void **)&CombinerParameterfv, NULL, {"glCombinerParameterfv", "glCombinerParameterfvNV", NULL}},
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{(void **)&CombinerParameteri, NULL, {"glCombinerParameteri", "glCombinerParameteriNV", NULL}},
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{(void **)&CombinerInput, NULL, {"glCombinerInput", "glCombinerInputNV", NULL}},
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{(void **)&CombinerOutput, NULL, {"glCombinerOutput", "glCombinerOutputNV", NULL}},
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{(void **)&BeginFragmentShader, NULL, {"glBeginFragmentShaderATI", NULL}},
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{(void **)&EndFragmentShader, NULL, {"glEndFragmentShaderATI", NULL}},
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{(void **)&SampleMap, NULL, {"glSampleMapATI", NULL}},
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{(void **)&ColorFragmentOp2, NULL, {"glColorFragmentOp2ATI", NULL}},
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{(void **)&ColorFragmentOp3, NULL, {"glColorFragmentOp3ATI", NULL}},
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{(void **)&SetFragmentShaderConstant, NULL, {"glSetFragmentShaderConstantATI", NULL}},
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{(void **)&ActiveTexture, NULL, {"glActiveTexture", "glActiveTextureARB", NULL}},
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{(void **)&BindTexture, NULL, {"glBindTexture", "glBindTextureARB", NULL}},
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{(void **)&MultiTexCoord2f, NULL, {"glMultiTexCoord2f", "glMultiTexCoord2fARB", NULL}},
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{(void **)&GenPrograms, NULL, {"glGenPrograms", "glGenProgramsARB", "glGenProgramsNV", NULL}},
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{(void **)&DeletePrograms, NULL, {"glDeletePrograms", "glDeleteProgramsARB", "glDeleteProgramsNV", NULL}},
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{(void **)&BindProgram, NULL, {"glBindProgram", "glBindProgramARB", "glBindProgramNV", NULL}},
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{(void **)&ProgramString, NULL, {"glProgramString", "glProgramStringARB", "glProgramStringNV", NULL}},
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{(void **)&ProgramEnvParameter4f, NULL, {"glProgramEnvParameter4f", "glProgramEnvParameter4fARB", "glProgramEnvParameter4fNV", NULL}},
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{(void **)&SwapInterval, "_swap_control", {"glXSwapInterval", "glXSwapIntervalEXT", "glXSwapIntervalSGI", "wglSwapInterval", "wglSwapIntervalEXT", "wglSwapIntervalSGI", NULL}},
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{NULL}
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};
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/**
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* \brief find the function pointers of some useful OpenGL extensions
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* \param getProcAddress function to resolve function names, may be NULL
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@ -253,96 +288,27 @@ static void *setNull(const GLubyte *s) {
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*/
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static void getFunctions(void *(*getProcAddress)(const GLubyte *),
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const char *ext2) {
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const extfunc_desc_t *dsc;
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const char *extensions = glGetString(GL_EXTENSIONS);
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char *allexts;
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if (!extensions) extensions = "";
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if (!ext2) ext2 = "";
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allexts = (char *)malloc(strlen(extensions) + strlen(ext2) + 2);
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strcpy(allexts, extensions);
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strcat(allexts, " ");
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strcat(allexts, ext2);
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if (!getProcAddress)
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getProcAddress = setNull;
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GenBuffers = getProcAddress("glGenBuffers");
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if (!GenBuffers)
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GenBuffers = getProcAddress("glGenBuffersARB");
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DeleteBuffers = getProcAddress("glDeleteBuffers");
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if (!DeleteBuffers)
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DeleteBuffers = getProcAddress("glDeleteBuffersARB");
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BindBuffer = getProcAddress("glBindBuffer");
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if (!BindBuffer)
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BindBuffer = getProcAddress("glBindBufferARB");
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MapBuffer = getProcAddress("glMapBuffer");
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if (!MapBuffer)
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MapBuffer = getProcAddress("glMapBufferARB");
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UnmapBuffer = getProcAddress("glUnmapBuffer");
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if (!UnmapBuffer)
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UnmapBuffer = getProcAddress("glUnmapBufferARB");
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BufferData = getProcAddress("glBufferData");
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if (!BufferData)
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BufferData = getProcAddress("glBufferDataARB");
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CombinerParameterfv = getProcAddress("glCombinerParameterfv");
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if (!CombinerParameterfv)
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CombinerParameterfv = getProcAddress("glCombinerParameterfvNV");
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CombinerParameteri = getProcAddress("glCombinerParameteri");
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if (!CombinerParameteri)
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CombinerParameteri = getProcAddress("glCombinerParameteriNV");
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CombinerInput = getProcAddress("glCombinerInput");
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if (!CombinerInput)
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CombinerInput = getProcAddress("glCombinerInputNV");
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CombinerOutput = getProcAddress("glCombinerOutput");
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if (!CombinerOutput)
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CombinerOutput = getProcAddress("glCombinerOutputNV");
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BeginFragmentShader = getProcAddress("glBeginFragmentShaderATI");
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EndFragmentShader = getProcAddress("glEndFragmentShaderATI");
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SampleMap = getProcAddress("glSampleMapATI");
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ColorFragmentOp2 = getProcAddress("glColorFragmentOp2ATI");
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ColorFragmentOp3 = getProcAddress("glColorFragmentOp3ATI");
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SetFragmentShaderConstant = getProcAddress("glSetFragmentShaderConstantATI");
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ActiveTexture = getProcAddress("glActiveTexture");
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if (!ActiveTexture)
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ActiveTexture = getProcAddress("glActiveTextureARB");
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BindTexture = getProcAddress("glBindTexture");
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if (!BindTexture)
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BindTexture = getProcAddress("glBindTextureARB");
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MultiTexCoord2f = getProcAddress("glMultiTexCoord2f");
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if (!MultiTexCoord2f)
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MultiTexCoord2f = getProcAddress("glMultiTexCoord2fARB");
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GenPrograms = getProcAddress("glGenPrograms");
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if (!GenPrograms)
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GenPrograms = getProcAddress("glGenProgramsARB");
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if (!GenPrograms)
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GenPrograms = getProcAddress("glGenProgramsNV");
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DeletePrograms = getProcAddress("glDeletePrograms");
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if (!DeletePrograms)
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DeletePrograms = getProcAddress("glDeleteProgramsARB");
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if (!DeletePrograms)
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DeletePrograms = getProcAddress("glDeleteProgramsNV");
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BindProgram = getProcAddress("glBindProgram");
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if (!BindProgram)
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BindProgram = getProcAddress("glBindProgramARB");
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if (!BindProgram)
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BindProgram = getProcAddress("glBindProgramNV");
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ProgramString = getProcAddress("glProgramString");
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if (!ProgramString)
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ProgramString = getProcAddress("glProgramStringARB");
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if (!ProgramString)
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ProgramString = getProcAddress("glProgramStringNV");
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ProgramEnvParameter4f = getProcAddress("glProgramEnvParameter4f");
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if (!ProgramEnvParameter4f)
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ProgramEnvParameter4f = getProcAddress("glProgramEnvParameter4fARB");
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if (!ProgramEnvParameter4f)
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ProgramEnvParameter4f = getProcAddress("glProgramEnvParameter4fNV");
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if (!strstr(extensions, "_swap_control") && !strstr(ext2, "_swap_control"))
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SwapInterval = NULL;
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else {
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SwapInterval = getProcAddress("glXSwapInterval");
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if (!SwapInterval)
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SwapInterval = getProcAddress("glXSwapIntervalEXT");
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if (!SwapInterval)
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SwapInterval = getProcAddress("glXSwapIntervalSGI");
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if (!SwapInterval)
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SwapInterval = getProcAddress("wglSwapInterval");
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if (!SwapInterval)
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SwapInterval = getProcAddress("wglSwapIntervalEXT");
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if (!SwapInterval)
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SwapInterval = getProcAddress("wglSwapIntervalSGI");
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for (dsc = extfuncs; dsc->funcptr; dsc++) {
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void *ptr = NULL;
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int i;
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if (!dsc->extstr || strstr(allexts, dsc->extstr)) {
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for (i = 0; !ptr && dsc->funcnames[i]; i++)
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ptr = getProcAddress((const GLubyte *)dsc->funcnames[i]);
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}
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*(dsc->funcptr) = ptr;
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}
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free(allexts);
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}
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/**
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