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##########################################################################
#
# Copyright 2011 LunarG, Inc.
# All Rights Reserved.
#
# Based on glxtrace.py, which has
#
# Copyright 2011 Jose Fonseca
# Copyright 2008-2010 VMware, Inc.
#
# 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.
#
##########################################################################/
"""EGL tracing generator."""
from gltrace import GlTracer
from specs.stdapi import Module, API
from specs.glapi import glapi
from specs.eglapi import eglapi
from specs.glesapi import glesapi
class EglTracer(GlTracer):
def isFunctionPublic(self, function):
# The symbols visible in libEGL.so can vary, so expose them all
return True
getProcAddressFunctionNames = [
"eglGetProcAddress",
]
def traceFunctionImplBody(self, function):
GlTracer.traceFunctionImplBody(self, function)
if function.name == 'eglCreateContext':
print ' if (_result != EGL_NO_CONTEXT)'
print ' gltrace::createContext((uintptr_t)_result);'
if function.name == 'eglMakeCurrent':
print ' if (_result) {'
print ' // update the profile'
print ' if (ctx != EGL_NO_CONTEXT) {'
print ' EGLint api = EGL_OPENGL_ES_API, version = 1;'
print ' gltrace::setContext((uintptr_t)ctx);'
print ' gltrace::Context *tr = gltrace::getContext();'
print ' _eglQueryContext(dpy, ctx, EGL_CONTEXT_CLIENT_TYPE, &api);'
print ' _eglQueryContext(dpy, ctx, EGL_CONTEXT_CLIENT_VERSION, &version);'
print ' if (api == EGL_OPENGL_API)'
print ' tr->profile = gltrace::PROFILE_COMPAT;'
print ' else if (version == 1)'
print ' tr->profile = gltrace::PROFILE_ES1;'
print ' else'
print ' tr->profile = gltrace::PROFILE_ES2;'
print ' } else {'
print ' gltrace::clearContext();'
print ' }'
print ' }'
if function.name == 'eglDestroyContext':
print ' if (_result) {'
print ' gltrace::releaseContext((uintptr_t)ctx);'
print ' }'
if function.name == 'glEGLImageTargetTexture2DOES':
print ' image_info *info = _EGLImageKHR_get_image_info(target, image);'
print ' if (info) {'
print ' GLint level = 0;'
print ' GLint internalformat = info->internalformat;'
print ' GLsizei width = info->width;'
print ' GLsizei height = info->height;'
print ' GLint border = 0;'
print ' GLenum format = info->format;'
print ' GLenum type = info->type;'
print ' const GLvoid * pixels = info->pixels;'
self.emitFakeTexture2D()
print ' _EGLImageKHR_free_image_info(info);'
print ' }'
if __name__ == '__main__':
print '#include <stdlib.h>'
print '#include <string.h>'
print
print '#include "trace_writer_local.hpp"'
print
print '// To validate our prototypes'
print '#define GL_GLEXT_PROTOTYPES'
print '#define EGL_EGLEXT_PROTOTYPES'
print
print '#include "dlopen.hpp"'
print '#include "glproc.hpp"'
print '#include "glsize.hpp"'
print '#include "eglsize.hpp"'
print
module = Module()
module.mergeModule(eglapi)
module.mergeModule(glapi)
module.mergeModule(glesapi)
api = API()
api.addModule(module)
tracer = EglTracer()
tracer.traceApi(api)
print r'''
/*
* Several applications, such as Quake3, use dlopen("libGL.so.1"), but
* LD_PRELOAD does not intercept symbols obtained via dlopen/dlsym, therefore
* we need to intercept the dlopen() call here, and redirect to our wrapper
* shared object.
*/
extern "C" PUBLIC
void * dlopen(const char *filename, int flag)
{
bool intercept = false;
if (filename) {
intercept =
strcmp(filename, "libEGL.so") == 0 ||
strcmp(filename, "libEGL.so.1") == 0 ||
strcmp(filename, "libGLESv1_CM.so") == 0 ||
strcmp(filename, "libGLESv1_CM.so.1") == 0 ||
strcmp(filename, "libGLESv2.so") == 0 ||
strcmp(filename, "libGLESv2.so.2") == 0 ||
strcmp(filename, "libGL.so") == 0 ||
strcmp(filename, "libGL.so.1") == 0;
if (intercept) {
os::log("apitrace: redirecting dlopen(\"%s\", 0x%x)\n", filename, flag);
/* The current dispatch implementation relies on core entry-points to be globally available, so force this.
*
* TODO: A better approach would be note down the entry points here and
* use them latter. Another alternative would be to reopen the library
* with RTLD_NOLOAD | RTLD_GLOBAL.
*/
flag &= ~RTLD_LOCAL;
flag |= RTLD_GLOBAL;
}
}
void *handle = _dlopen(filename, flag);
if (intercept) {
// Get the file path for our shared object, and use it instead
static int dummy = 0xdeedbeef;
Dl_info info;
if (dladdr(&dummy, &info)) {
handle = _dlopen(info.dli_fname, flag);
} else {
os::log("apitrace: warning: dladdr() failed\n");
}
}
return handle;
}
#if defined(ANDROID)
/*
* Undocumented Android extensions used by Dalvik which have bound information
* passed to it, but is currently ignored, so probably unreliable.
*
* See:
* https://github.com/android/platform_frameworks_base/blob/master/opengl/libs/GLES_CM/gl.cpp
*/
extern "C" PUBLIC
void APIENTRY glColorPointerBounds(GLint size, GLenum type, GLsizei stride, const GLvoid * pointer, GLsizei count) {
(void)count;
glColorPointer(size, type, stride, pointer);
}
extern "C" PUBLIC
void APIENTRY glNormalPointerBounds(GLenum type, GLsizei stride, const GLvoid * pointer, GLsizei count) {
(void)count;
glNormalPointer(type, stride, pointer);
}
extern "C" PUBLIC
void APIENTRY glTexCoordPointerBounds(GLint size, GLenum type, GLsizei stride, const GLvoid * pointer, GLsizei count) {
(void)count;
glTexCoordPointer(size, type, stride, pointer);
}
extern "C" PUBLIC
void APIENTRY glVertexPointerBounds(GLint size, GLenum type, GLsizei stride, const GLvoid * pointer, GLsizei count) {
(void)count;
glVertexPointer(size, type, stride, pointer);
}
extern "C" PUBLIC
void GL_APIENTRY glPointSizePointerOESBounds(GLenum type, GLsizei stride, const GLvoid *pointer, GLsizei count) {
(void)count;
glPointSizePointerOES(type, stride, pointer);
}
extern "C" PUBLIC
void APIENTRY glMatrixIndexPointerOESBounds(GLint size, GLenum type, GLsizei stride, const GLvoid *pointer, GLsizei count) {
(void)count;
glMatrixIndexPointerOES(size, type, stride, pointer);
}
extern "C" PUBLIC
void APIENTRY glWeightPointerOESBounds(GLint size, GLenum type, GLsizei stride, const GLvoid *pointer, GLsizei count) {
(void)count;
glWeightPointerOES(size, type, stride, pointer);
}
/*
* There is also a glVertexAttribPointerBounds in
* https://github.com/android/platform_frameworks_base/blob/master/opengl/tools/glgen/stubs/gles11/GLES20cHeader.cpp
* but is it not exported.
*/
#endif /* ANDROID */
'''
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