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This provides an interface for applications (and OpenGL-based tools) to
access GPU performance counters. Since the exact performance counters
available vary between vendors and hardware generations, the extension
provides an API the application can use to get the names, types, and
minimum/maximum values of all available counters. Counters are also
organized into groups.
Applications create "performance monitor" objects, select the counters
they want to track, and Begin/End monitoring, much like OpenGL's query
API. Multiple monitors can be in flight simultaneously.
v2: Pass ctx to all driver hooks (suggested by Christoph), and attempt
to fix overallocation of bitsets (caught by Christoph). Incomplete.
v3: Significantly rework core data structures. Store counters in groups
rather than in a global list. Use their array index in the group's
counter list as the ID rather than trying to store a globally unique
counter ID. Use bitsets for active counters within a group, and
also track which groups are active so that's easy to query.
v4: Remove _mesa_ prefix on static functions; detect out of memory
conditions in new_performance_monitor(); make BeginPerfMonitor hook
return a boolean rather than setting m->Active or raising an error.
Switch to GLuint/unsigned for NumGroups, NumCounters, and
MaxActiveCounters (which also means switching a bunch of temporary
variable types). All suggested by Brian Paul. Also, remove
commented out code at the bottom of the block. Finally, fix the
dispatch sanity test (noticed by Ian Romanick).
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Brian Paul <brianp@vmware.com> [v3]
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
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| common.py | ||
| configure.ac | ||
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| SConstruct | ||
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File: docs/README.WIN32 Last updated: 21 June 2013 Quick Start ----- ----- Windows drivers are build with SCons. Makefiles or Visual Studio projects are no longer shipped or supported. Run scons osmesa mesagdi to build classic mesa Windows GDI drivers; or scons libgl-gdi to build gallium based GDI driver. This will work both with MSVS or Mingw. Windows Drivers ------- ------- At this time, only the gallium GDI driver is known to work. Source code also exists in the tree for other drivers in src/mesa/drivers/windows, but the status of this code is unknown. Recipe ------ Building on windows requires several open-source packages. These are steps that work as of this writing. 1) install python 2.7 2) install scons (latest) 3) install mingw, flex, and bison 4) install libxml2 from here: http://www.lfd.uci.edu/~gohlke/pythonlibs get libxml2-python-2.9.1.win-amd64-py2.7.exe 5) install pywin32 from here: http://www.lfd.uci.edu/~gohlke/pythonlibs get pywin32-218.4.win-amd64-py2.7.exe 6) install git 7) download mesa from git see http://www.mesa3d.org/repository.html 8) run scons General ------- After building, you can copy the above DLL files to a place in your PATH such as $SystemRoot/SYSTEM32. If you don't like putting things in a system directory, place them in the same directory as the executable(s). Be careful about accidentially overwriting files of the same name in the SYSTEM32 directory. The DLL files are built so that the external entry points use the stdcall calling convention. Static LIB files are not built. The LIB files that are built with are the linker import files associated with the DLL files. The si-glu sources are used to build the GLU libs. This was done mainly to get the better tessellator code. If you have a Windows-related build problem or question, please post to the mesa-dev or mesa-users list.