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I tried first creating the auxiliary buffer the same time with the
color buffer. That, however, led me into a situation where we would
later create the rest of the mip-levels and the compression would
need to be disabled (it is only supported for single level buffers).
Here we try to create it on demand just before the hardware starts
to render. This is similar what we do with fast clear buffers,
their creation is deferred until the first clear.
This setup also gives the opportunity to detect if the miptree
represents the temporaty texture used internally in the mesa core.
This texture is mostly written by cpu and therefore enabling
compression for it doesn't make much sense.
Note that a heuristic is included. Floating point formats are not
enabled yet as they are only seen to hurt performance.
Some highlights with window system driver kept fixed to default
and only the application driver changing:
Manhattan: 8.32152% +/- 0.355881%
Offscreen: 9.09713% +/- 0.340763%
Glb trex: 8.46231% +/- 0.460624%
Offscreen: 9.31872% +/- 0.463743%
v2 (Ben): Re-use msaa layout type for single sampled case.
v3: Moved the deferred allocation of mcs to brw_try_draw_prims() and
brw_blorp_blit_miptrees() instead.
v4: (Ken): Drop MIPTREE_LAYOUT_ACCELERATED_UPLOAD when allocating mcs.
Do not enable for scanout buffers
Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
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| appveyor.yml | ||
| autogen.sh | ||
| CleanSpec.mk | ||
| common.py | ||
| configure.ac | ||
| install-gallium-links.mk | ||
| install-lib-links.mk | ||
| Makefile.am | ||
| REVIEWERS | ||
| 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 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. - install python 2.7 - install scons (latest) - install mingw, flex, and bison - install pywin32 from here: http://www.lfd.uci.edu/~gohlke/pythonlibs get pywin32-218.4.win-amd64-py2.7.exe - install git - download mesa from git see http://www.mesa3d.org/repository.html - 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.