--- /dev/null
+##########################################################################
+#
+# Copyright 2010 VMware, Inc.
+# All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+##########################################################################/
+
+
+import stdapi
+from glapi import glapi
+from glxapi import glxapi
+from wglapi import wglapi
+
+
+public_symbols = set([
+ "glAccum",
+ "glAlphaFunc",
+ "glAreTexturesResident",
+ "glArrayElement",
+ "glBegin",
+ "glBindTexture",
+ "glBitmap",
+ "glBlendFunc",
+ "glCallList",
+ "glCallLists",
+ "glClear",
+ "glClearAccum",
+ "glClearColor",
+ "glClearDepth",
+ "glClearIndex",
+ "glClearStencil",
+ "glClipPlane",
+ "glColor3b",
+ "glColor3bv",
+ "glColor3d",
+ "glColor3dv",
+ "glColor3f",
+ "glColor3fv",
+ "glColor3i",
+ "glColor3iv",
+ "glColor3s",
+ "glColor3sv",
+ "glColor3ub",
+ "glColor3ubv",
+ "glColor3ui",
+ "glColor3uiv",
+ "glColor3us",
+ "glColor3usv",
+ "glColor4b",
+ "glColor4bv",
+ "glColor4d",
+ "glColor4dv",
+ "glColor4f",
+ "glColor4fv",
+ "glColor4i",
+ "glColor4iv",
+ "glColor4s",
+ "glColor4sv",
+ "glColor4ub",
+ "glColor4ubv",
+ "glColor4ui",
+ "glColor4uiv",
+ "glColor4us",
+ "glColor4usv",
+ "glColorMask",
+ "glColorMaterial",
+ "glColorPointer",
+ "glCopyPixels",
+ "glCopyTexImage1D",
+ "glCopyTexImage2D",
+ "glCopyTexSubImage1D",
+ "glCopyTexSubImage2D",
+ "glCullFace",
+# "glDebugEntry",
+ "glDeleteLists",
+ "glDeleteTextures",
+ "glDepthFunc",
+ "glDepthMask",
+ "glDepthRange",
+ "glDisable",
+ "glDisableClientState",
+ "glDrawArrays",
+ "glDrawBuffer",
+ "glDrawElements",
+ "glDrawPixels",
+ "glEdgeFlag",
+ "glEdgeFlagPointer",
+ "glEdgeFlagv",
+ "glEnable",
+ "glEnableClientState",
+ "glEnd",
+ "glEndList",
+ "glEvalCoord1d",
+ "glEvalCoord1dv",
+ "glEvalCoord1f",
+ "glEvalCoord1fv",
+ "glEvalCoord2d",
+ "glEvalCoord2dv",
+ "glEvalCoord2f",
+ "glEvalCoord2fv",
+ "glEvalMesh1",
+ "glEvalMesh2",
+ "glEvalPoint1",
+ "glEvalPoint2",
+ "glFeedbackBuffer",
+ "glFinish",
+ "glFlush",
+ "glFogf",
+ "glFogfv",
+ "glFogi",
+ "glFogiv",
+ "glFrontFace",
+ "glFrustum",
+ "glGenLists",
+ "glGenTextures",
+ "glGetBooleanv",
+ "glGetClipPlane",
+ "glGetDoublev",
+ "glGetError",
+ "glGetFloatv",
+ "glGetIntegerv",
+ "glGetLightfv",
+ "glGetLightiv",
+ "glGetMapdv",
+ "glGetMapfv",
+ "glGetMapiv",
+ "glGetMaterialfv",
+ "glGetMaterialiv",
+ "glGetPixelMapfv",
+ "glGetPixelMapuiv",
+ "glGetPixelMapusv",
+ "glGetPointerv",
+ "glGetPolygonStipple",
+ "glGetString",
+ "glGetTexEnvfv",
+ "glGetTexEnviv",
+ "glGetTexGendv",
+ "glGetTexGenfv",
+ "glGetTexGeniv",
+ "glGetTexImage",
+ "glGetTexLevelParameterfv",
+ "glGetTexLevelParameteriv",
+ "glGetTexParameterfv",
+ "glGetTexParameteriv",
+ "glHint",
+ "glIndexMask",
+ "glIndexPointer",
+ "glIndexd",
+ "glIndexdv",
+ "glIndexf",
+ "glIndexfv",
+ "glIndexi",
+ "glIndexiv",
+ "glIndexs",
+ "glIndexsv",
+ "glIndexub",
+ "glIndexubv",
+ "glInitNames",
+ "glInterleavedArrays",
+ "glIsEnabled",
+ "glIsList",
+ "glIsTexture",
+ "glLightModelf",
+ "glLightModelfv",
+ "glLightModeli",
+ "glLightModeliv",
+ "glLightf",
+ "glLightfv",
+ "glLighti",
+ "glLightiv",
+ "glLineStipple",
+ "glLineWidth",
+ "glListBase",
+ "glLoadIdentity",
+ "glLoadMatrixd",
+ "glLoadMatrixf",
+ "glLoadName",
+ "glLogicOp",
+ "glMap1d",
+ "glMap1f",
+ "glMap2d",
+ "glMap2f",
+ "glMapGrid1d",
+ "glMapGrid1f",
+ "glMapGrid2d",
+ "glMapGrid2f",
+ "glMaterialf",
+ "glMaterialfv",
+ "glMateriali",
+ "glMaterialiv",
+ "glMatrixMode",
+ "glMultMatrixd",
+ "glMultMatrixf",
+ "glNewList",
+ "glNormal3b",
+ "glNormal3bv",
+ "glNormal3d",
+ "glNormal3dv",
+ "glNormal3f",
+ "glNormal3fv",
+ "glNormal3i",
+ "glNormal3iv",
+ "glNormal3s",
+ "glNormal3sv",
+ "glNormalPointer",
+ "glOrtho",
+ "glPassThrough",
+ "glPixelMapfv",
+ "glPixelMapuiv",
+ "glPixelMapusv",
+ "glPixelStoref",
+ "glPixelStorei",
+ "glPixelTransferf",
+ "glPixelTransferi",
+ "glPixelZoom",
+ "glPointSize",
+ "glPolygonMode",
+ "glPolygonOffset",
+ "glPolygonStipple",
+ "glPopAttrib",
+ "glPopClientAttrib",
+ "glPopMatrix",
+ "glPopName",
+ "glPrioritizeTextures",
+ "glPushAttrib",
+ "glPushClientAttrib",
+ "glPushMatrix",
+ "glPushName",
+ "glRasterPos2d",
+ "glRasterPos2dv",
+ "glRasterPos2f",
+ "glRasterPos2fv",
+ "glRasterPos2i",
+ "glRasterPos2iv",
+ "glRasterPos2s",
+ "glRasterPos2sv",
+ "glRasterPos3d",
+ "glRasterPos3dv",
+ "glRasterPos3f",
+ "glRasterPos3fv",
+ "glRasterPos3i",
+ "glRasterPos3iv",
+ "glRasterPos3s",
+ "glRasterPos3sv",
+ "glRasterPos4d",
+ "glRasterPos4dv",
+ "glRasterPos4f",
+ "glRasterPos4fv",
+ "glRasterPos4i",
+ "glRasterPos4iv",
+ "glRasterPos4s",
+ "glRasterPos4sv",
+ "glReadBuffer",
+ "glReadPixels",
+ "glRectd",
+ "glRectdv",
+ "glRectf",
+ "glRectfv",
+ "glRecti",
+ "glRectiv",
+ "glRects",
+ "glRectsv",
+ "glRenderMode",
+ "glRotated",
+ "glRotatef",
+ "glScaled",
+ "glScalef",
+ "glScissor",
+ "glSelectBuffer",
+ "glShadeModel",
+ "glStencilFunc",
+ "glStencilMask",
+ "glStencilOp",
+ "glTexCoord1d",
+ "glTexCoord1dv",
+ "glTexCoord1f",
+ "glTexCoord1fv",
+ "glTexCoord1i",
+ "glTexCoord1iv",
+ "glTexCoord1s",
+ "glTexCoord1sv",
+ "glTexCoord2d",
+ "glTexCoord2dv",
+ "glTexCoord2f",
+ "glTexCoord2fv",
+ "glTexCoord2i",
+ "glTexCoord2iv",
+ "glTexCoord2s",
+ "glTexCoord2sv",
+ "glTexCoord3d",
+ "glTexCoord3dv",
+ "glTexCoord3f",
+ "glTexCoord3fv",
+ "glTexCoord3i",
+ "glTexCoord3iv",
+ "glTexCoord3s",
+ "glTexCoord3sv",
+ "glTexCoord4d",
+ "glTexCoord4dv",
+ "glTexCoord4f",
+ "glTexCoord4fv",
+ "glTexCoord4i",
+ "glTexCoord4iv",
+ "glTexCoord4s",
+ "glTexCoord4sv",
+ "glTexCoordPointer",
+ "glTexEnvf",
+ "glTexEnvfv",
+ "glTexEnvi",
+ "glTexEnviv",
+ "glTexGend",
+ "glTexGendv",
+ "glTexGenf",
+ "glTexGenfv",
+ "glTexGeni",
+ "glTexGeniv",
+ "glTexImage1D",
+ "glTexImage2D",
+ "glTexParameterf",
+ "glTexParameterfv",
+ "glTexParameteri",
+ "glTexParameteriv",
+ "glTexSubImage1D",
+ "glTexSubImage2D",
+ "glTranslated",
+ "glTranslatef",
+ "glVertex2d",
+ "glVertex2dv",
+ "glVertex2f",
+ "glVertex2fv",
+ "glVertex2i",
+ "glVertex2iv",
+ "glVertex2s",
+ "glVertex2sv",
+ "glVertex3d",
+ "glVertex3dv",
+ "glVertex3f",
+ "glVertex3fv",
+ "glVertex3i",
+ "glVertex3iv",
+ "glVertex3s",
+ "glVertex3sv",
+ "glVertex4d",
+ "glVertex4dv",
+ "glVertex4f",
+ "glVertex4fv",
+ "glVertex4i",
+ "glVertex4iv",
+ "glVertex4s",
+ "glVertex4sv",
+ "glVertexPointer",
+ "glViewport",
+ "wglChoosePixelFormat",
+ "wglCopyContext",
+ "wglCreateContext",
+ "wglCreateLayerContext",
+ "wglDeleteContext",
+ "wglDescribeLayerPlane",
+ "wglDescribePixelFormat",
+ "wglGetCurrentContext",
+ "wglGetCurrentDC",
+ "wglGetDefaultProcAddress",
+ "wglGetLayerPaletteEntries",
+ "wglGetPixelFormat",
+ "wglGetProcAddress",
+ "wglMakeCurrent",
+ "wglRealizeLayerPalette",
+ "wglSetLayerPaletteEntries",
+ "wglSetPixelFormat",
+ "wglShareLists",
+ "wglSwapBuffers",
+ "wglSwapLayerBuffers",
+ "wglSwapMultipleBuffers",
+ "wglUseFontBitmapsA",
+ "wglUseFontBitmapsW",
+ "wglUseFontOutlinesA",
+ "wglUseFontOutlinesW",
+])
+
+
+class Dispatcher:
+
+ def function_pointer_type(self, function):
+ return '__PFN' + function.name.upper()
+
+ def function_pointer_value(self, function):
+ return '__' + function.name + '_ptr'
+
+ def dispatch_function(self, function):
+ if function.name in public_symbols:
+ return
+
+ ptype = self.function_pointer_type(function)
+ pvalue = self.function_pointer_value(function)
+ print 'typedef ' + function.prototype('* %s' % ptype) + ';'
+ print 'static %s %s = NULL;' % (ptype, pvalue)
+ print
+ print 'static inline ' + function.prototype('__' + function.name) + ' {'
+ if function.type is stdapi.Void:
+ ret = ''
+ else:
+ ret = 'return '
+ self.get_true_pointer(function)
+ pvalue = self.function_pointer_value(function)
+ print ' %s%s(%s);' % (ret, pvalue, ', '.join([str(arg.name) for arg in function.args]))
+ print '}'
+ print
+ print '#define %s __%s' % (function.name, function.name)
+
+ def get_true_pointer(self, function):
+ ptype = self.function_pointer_type(function)
+ pvalue = self.function_pointer_value(function)
+ if function.name in public_symbols:
+ get_proc_address = '__getProcAddress'
+ else:
+ get_proc_address = '__glGetProcAddress'
+ print ' if (!%s) {' % (pvalue,)
+ print ' %s = (%s)%s("%s");' % (pvalue, ptype, get_proc_address, function.name)
+ print ' if (!%s) {' % (pvalue,)
+ self.fail_function(function)
+ print ' }'
+ print ' }'
+
+ def fail_function(self, function):
+ print ' std::cerr << "error: unavailable function \\"%s\\"\\n";' % function.name
+ if function.fail is not None:
+ if function.type is stdapi.Void:
+ assert function.fail == ''
+ print ' return;'
+ else:
+ assert function.fail != ''
+ print ' return %s;' % function.fail
+ else:
+ print ' abort();'
+
+
+if __name__ == '__main__':
+ print
+ print '#include "glimports.hpp"'
+ print '#include "os.hpp"'
+ print
+ if 0:
+ print 'typedef void (*__PROC)(void);'
+ print
+ print 'static __PROC __getProcAddress(const char *name);'
+ print
+ print 'static __PROC __glGetProcAddress(const char *name);'
+ else:
+ print '#ifdef WIN32'
+ print '#define __glGetProcAddress wglGetProcAddress'
+ print '#else'
+ print '#define __glGetProcAddress(name) glXGetProcAddress((const GLubyte *)(name))'
+ print '#endif'
+ print
+ dispatcher = Dispatcher()
+ for function in glapi.functions:
+ dispatcher.dispatch_function(function)
+ print
+ if 0:
+ print '''
+
+#ifdef WIN32
+
+static HINSTANCE g_hDll = NULL;
+
+static __PROC
+__getProcAddress(const char *name)
+{
+ if (!g_hDll) {
+ char szDll[MAX_PATH] = {0};
+
+ if (!GetSystemDirectoryA(szDll, MAX_PATH)) {
+ return NULL;
+ }
+
+ strcat(szDll, "\\\\opengl32.dll");
+
+ g_hDll = LoadLibraryA(szDll);
+ if (!g_hDll) {
+ return NULL;
+ }
+ }
+
+ return GetProcAddress(g_hDll, name);
+}
+
+static inline __PROC
+__glGetProcAddress(const char *name) {
+ return __wglGetProcAddress(name);
+}
+
+#else
+
+static void g_module = NULL;
+
+static __PROC
+__getProcAddress(const char *name)
+{
+ if (!g_module) {
+ g_module = dlopen("libGL.so", RTLD_LAZY);
+ if (!g_module) {
+ return NULL;
+ }
+ }
+
+ return (__PROC)dlsym(g_module, name);
+}
+
+static inline __PROC
+__glGetProcAddress(const char *name) {
+ return __glXGetProcAddress(name);
+}
+
+#endif
+
+ '''
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