1 ##########################################################################
3 # Copyright 2011 VMware, Inc.
6 # Permission is hereby granted, free of charge, to any person obtaining a copy
7 # of this software and associated documentation files (the "Software"), to deal
8 # in the Software without restriction, including without limitation the rights
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10 # copies of the Software, and to permit persons to whom the Software is
11 # furnished to do so, subject to the following conditions:
13 # The above copyright notice and this permission notice shall be included in
14 # all copies or substantial portions of the Software.
16 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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24 ##########################################################################/
27 """Cgl tracing generator."""
30 from stdapi import API
31 from glapi import glapi
32 from cglapi import cglapi
33 from gltrace import GlTracer
36 class CglTracer(GlTracer):
38 def is_public_function(self, function):
39 # The symbols visible in libGL.dylib can vary, so expose them all
43 if __name__ == '__main__':
45 print '#include <stdlib.h>'
46 print '#include <string.h>'
48 print '#ifndef _GNU_SOURCE'
49 print '#define _GNU_SOURCE // for dladdr'
51 print '#include <dlfcn.h>'
53 print '#include "trace_write.hpp"'
55 print '// To validate our prototypes'
56 print '#define GL_GLEXT_PROTOTYPES'
58 print '#include "glproc.hpp"'
59 print '#include "glsize.hpp"'
72 * Handle to the true libGL.so
74 static void *libgl_handle = NULL;
78 * Lookup a libGL symbol
80 static void * __dlsym(const char *symbol)
84 const char * libgl_filename;
87 * Unfortunately we can't just dlopen
88 * /System/Library/Frameworks/OpenGL.framework/Libraries/libGL.dylib
89 * because DYLD_LIBRARY_PATH takes precedence, even for absolute paths.
91 libgl_filename = "libGL.system.dylib";
93 libgl_handle = dlopen(libgl_filename, RTLD_LOCAL | RTLD_NOW | RTLD_FIRST);
95 OS::DebugMessage("error: couldn't load %s\n", libgl_filename);
100 result = dlsym(libgl_handle, symbol);
102 if (result == dlsym(RTLD_SELF, symbol)) {
103 OS::DebugMessage("error: symbol lookup recursion\n");