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##########################################################################
#
# Copyright 2011 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.
#
##########################################################################/
"""Cgl tracing generator."""
from specs.stdapi import API
from specs.glapi import glapi
from specs.cglapi import cglapi
from gltrace import GlTracer
class CglTracer(GlTracer):
def is_public_function(self, function):
# The symbols visible in libGL.dylib can vary, so expose them all
return True
if __name__ == '__main__':
print
print '#include <stdlib.h>'
print '#include <string.h>'
print '#include <unistd.h>'
print
print '#ifndef _GNU_SOURCE'
print '#define _GNU_SOURCE // for dladdr'
print '#endif'
print '#include <dlfcn.h>'
print
print '#include "trace_writer.hpp"'
print
print '// To validate our prototypes'
print '#define GL_GLEXT_PROTOTYPES'
print
print '#include "glproc.hpp"'
print '#include "glsize.hpp"'
print
api = API()
api.add_api(cglapi)
api.add_api(glapi)
tracer = CglTracer()
tracer.trace_api(api)
print r'''
/*
* Path to the true OpenGL framework
*/
static const char *libgl_filename = "/System/Library/Frameworks/OpenGL.framework/OpenGL";
/*
* Handle to the true OpenGL framework.
*/
static void *libgl_handle = NULL;
/*
* Lookup a libGL symbol
*/
void * __libgl_sym(const char *symbol)
{
void *result;
if (!libgl_handle) {
/*
* Unfortunately we can't just dlopen the true dynamic library because
* DYLD_LIBRARY_PATH/DYLD_FRAMEWORK_PATH take precedence, even for
* absolute paths. So we create a temporary symlink, and dlopen that
* instead.
*/
char temp_filename[] = "/tmp/tmp.XXXXXX";
if (mktemp(temp_filename) != NULL) {
if (symlink(libgl_filename, temp_filename) == 0) {
libgl_handle = dlopen(temp_filename, RTLD_LOCAL | RTLD_NOW | RTLD_FIRST);
remove(temp_filename);
}
}
if (!libgl_handle) {
OS::DebugMessage("apitrace: error: couldn't load %s\n", libgl_filename);
OS::Abort();
return NULL;
}
}
result = dlsym(libgl_handle, symbol);
if (result == dlsym(RTLD_SELF, symbol)) {
OS::DebugMessage("apitrace: error: symbol lookup recursion\n");
OS::Abort();
return NULL;
}
return result;
}
PUBLIC
void * gll_noop = 0;
'''
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