mirror of
https://gitlab.freedesktop.org/mesa/mesa.git
synced 2026-01-03 18:00:10 +01:00
read-only mirror of https://gitlab.freedesktop.org/mesa/mesa
8c80bdc4a8
According to bug #54524, I regressed oglconform's multicontext test when I reenabled the fragment shader precompile. However, these test cases only passed by miraculous coincedence. We assign each fragment program a unique ID (brw_fragment_program::id which becomes brw_wm_prog_key::program_string_id) which we obtain by storing a per-context counter. The test case uses GLX context sharing to access the same fragment program from two different contexts. This means that we share a program cache. Before the precompile, if both contexts happened to use the same shaders in the same order, we'd obtain the same program_string_ids (by virtue of doing the same computation twice). However, the more likely scenario is that they completely disagree on program_string_id. This meant that we'd have two completely different fragment shaders in the cache with the same ID, tricking us to think they were the same (aside from NOS), so we'd render using the wrong program. This patch implements a simple fix suggested by Eric: it moves the global counter out of brw_context and into intel_screen, which is shared across all contexts. A mutex protects it from concurrent access. This is also the first direct usage of pthreads in the i965 driver. Fixes 10 subcases of oglconform's multicontext test. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=54524 Reviewed-by: Eric Anholt <eric@anholt.net> |
||
|---|---|---|
| bin | ||
| docs | ||
| doxygen | ||
| include | ||
| m4 | ||
| scons | ||
| src | ||
| .dir-locals.el | ||
| .gitattributes | ||
| .gitignore | ||
| Android.common.mk | ||
| Android.mk | ||
| autogen.sh | ||
| common.py | ||
| configure.ac | ||
| Makefile.am | ||
| SConstruct | ||
File: docs/README.WIN32 Last updated: 23 April 2011 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. 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.