e94eb5e600
Add a new helper that drivers can use to emulate various things that
need special handling in particular in transfer_map:
1) z32_s8x24.. gl/gallium treats this as a single buffer with depth
and stencil interleaved but hardware frequently treats this as
separate z32 and s8 buffers. Special pack/unpack handling is
needed in transfer_map/unmap to pack/unpack the exposed buffer
2) fake RGTC.. GPUs designed with GLES in mind, but which can other-
wise do GL3, if native RGTC is not supported it can be emulated
by converting to uncompressed internally, but needs pack/unpack
in transfer_map/unmap
3) MSAA resolves in the transfer_map() case
v2: add MSAA resolve based on Eric's "gallium: Add helpers for MSAA
resolves in pipe_transfer_map()/unmap()." patch; avoid wrapping
pipe_resource, to make it possible for drivers to use both this
and threaded_context.
Signed-off-by: Rob Clark <robdclark@gmail.com>
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 https://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.