6 This includes a set of tools for:
7 - trace OpenGL, D3D8, and D3D9 APIs calls to a file;
8 - retrace OpenGL calls from a file;
9 - visualize trace files, and inspect state.
14 * It has not been tested with many applications. Bugs in less used features may
15 cause application crashes.
16 * Direct3D 8 support is currently broken.
17 * No Direct3D retrace support
20 = Building from source =
22 Requirements common for all platforms:
23 * Python (requires version 2.6)
24 * CMake (tested with version 2.8)
26 Requirements to build the GUI (optional):
27 * Qt (tested with version 4.7)
28 * QJSON (tested with version 0.7.1)
38 You can also build the 32bit GL wrapper on 64bit distro with a multilib gcc by
41 cmake -H. -Bbuild32 -DCMAKE_C_FLAGS=-m32 -DCMAKE_CXX_FLAGS=-m32 -DCMAKE_LINK_FLAGS=-m32
42 make -C build32 glxtrace
47 Additional requirements:
49 * Microsoft Visual Studio (tested with 2008 version) or MinGW (tested with gcc version 4.4)
51 * Microsoft DirectX SDK (tested with August 2007 release)
53 To build with Visual Studio invoke CMake as:
55 cmake -G "Visual Studio 9 2008" -H. -Bbuild
56 cmake --build build --config MinSizeRel
58 If you are building with GUI support (i.e, with QT and QJSON), it should detect
59 the official QT sdk automatically, but you will need to build QJSON yourself
60 and also set the QJSON_INCLUDE_DIR and QJSON_LIBRARIES variables in the
61 generated CMakeCache.txt when building apitrace and repeat the above sequence.
63 It's also possible to build for Windows on Linux with MinGW cross compilers.
64 See http://www.cmake.org/Wiki/CmakeMingw for detailed instructions.
72 Run the application you want to trace as
74 LD_PRELOAD=/path/to/glxtrace.so /path/to/application
76 and it will generate a trace named "application.trace" in the current
77 directory. You can specify the written trace filename by setting the
78 TRACE_FILE envirnment variable before running.
82 /path/to/tracedump application.trace | less -R
86 /path/to/glretrace application.trace
88 Pass the -db option to use a double buffered visual. Pass --help to glretrace
93 /path/to/qapitrace application.trace
96 The LD_PRELOAD mechanism should work with most applications. There are some
97 applications, e.g., Unigine Heaven, which global function pointers with the
98 same name as GL entrypoints, living in a shared object that wasn't linked with
99 -Bsymbolic flag, so relocations to those globals function pointers get
100 overwritten with the address to our wrapper library, and the application will
101 segfault when trying to write to them. For these applications it is possible
102 to trace by using glxtrace.so as an ordinary libGL.so and injecting into
105 ln -s glxtrace.so libGL.so
106 ln -s glxtrace.so libGL.so.1
107 ln -s glxtrace.so libGL.so.1.2
108 export LD_LIBRARY_PATH=/path/to/directory/where/glxtrace/is:$LD_LIBRARY_PATH
109 export TRACE_LIBGL=/path/to/real/libGL.so.1
115 * Copy opengl32.dll, d3d8.dll, or d3d9.dll from build/wrappers directory to the
116 directory with the application you want to trace.
118 * Run the application.
120 * View the trace with
122 /path/to/tracedump application.trace
124 * Replay the trace with
126 /path/to/glretrace application.trace
131 * http://zrusin.blogspot.com/2011/04/apitrace.html
132 * http://jrfonseca.blogspot.com/2008/07/tracing-d3d-applications.html
138 * [http://www.mikoweb.eu/index.php?node=21 Proxy DLL]
139 * [http://www.codeguru.com/cpp/g-m/directx/directx8/article.php/c11453/ Intercept Calls to DirectX with a Proxy DLL]
140 * [http://graphics.stanford.edu/~mdfisher/D3D9Interceptor.html Direct3D 9 API Interceptor]
143 * [http://msdn.microsoft.com/en-us/library/ee417062.aspx Microsoft PIX]
144 * [http://doc.51windows.net/Directx9_SDK/?url=/directx9_sdk/graphics/programmingguide/TutorialsAndSamplesAndToolsAndTips/Tools/D3DSpy.htm D3DSpy]: the predecessor of PIX
145 * [http://developer.amd.com/gpu/PerfStudio/pages/APITraceWindow.aspx AMD GPU PerfStudio]
151 * [http://www.opengl.org/sdk/tools/BuGLe/ BuGLe]
152 * [http://code.google.com/p/glintercept/ GLIntercept]
153 * [https://gitorious.org/tracy tracy]: OpenGL ES and OpenVG trace, retrace, and state inspection
156 * [http://www.gremedy.com/products.php gDEBugger]
157 * [http://cumbia.informatik.uni-stuttgart.de/glsldevil/index.html glslDevil]
158 * [http://developer.amd.com/gpu/PerfStudio/pages/APITraceWindow.aspx AMD GPU PerfStudio]