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Matt Turner c638ea3d19 i965: Don't make instructions with a null dest a barrier to scheduling.
Now that we properly track accumulator dependencies, the scheduler is
able to schedule instructions between the mach and mov in the common
the integer multiplication pattern:

   mul  acc0, x, y
   mach null, x, y
   mov  dest, acc0

Since a null destination implies no dependency on the destination, we
can also safely schedule instructions (that don't write the accumulator)
between the mul and mach.

GAINED:                                103
LOST:                                  43

Causes one program to spill (643 -> 1076 instructions).

I committed this patch last year (commit 42a26cb5) but reverted it
(commit 0d3f83f4) after inexplicable artifacts in Kerbal Space Program
(bug 78648). Tapani reapplied this patch and could not reproduce the bug
with current Mesa.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
2015-01-23 17:57:39 -08:00
bin get-pick-list: Allow for non-whitespace between "CC:" and "mesa-stable" 2013-07-31 15:49:48 -07:00
docs configure: require python mako module 2015-01-12 11:20:28 +01:00
doxygen mesa: remove empty glthread.h file 2014-03-03 13:08:59 -07:00
include st/nine: Add new texture format strings 2015-01-22 22:16:17 +00:00
m4 configure: require python mako module 2015-01-12 11:20:28 +01:00
scons scons: Add X11 include path if X11 is available. 2015-01-22 21:29:43 +00:00
src i965: Don't make instructions with a null dest a barrier to scheduling. 2015-01-23 17:57:39 -08:00
.dir-locals.el dir-locals.el: Set indent-tabs-mode true for makefile-mode 2014-01-29 11:45:49 -08:00
.gitattributes Disable autocrlf for Visual Studio project files. 2008-02-28 12:34:01 +09:00
.gitignore gitignore: Ignore .tar.xz files. 2015-01-23 14:28:44 -08:00
Android.common.mk build: unify mesa version by using a VERSION file 2013-07-29 13:39:29 -07:00
Android.mk util: Include in Android builds 2014-10-03 01:25:28 +01:00
autogen.sh build: Fix autogen.sh to allow out-of-tree builds 2012-08-14 10:54:39 -07:00
CleanSpec.mk android: add CleanSpec.mk 2014-08-13 00:46:57 +01:00
common.py scons: Don't restrict MSVC_VERSION values. 2014-05-02 22:04:46 +01:00
configure.ac mapi: Remove vgapi from SUBDIRS. 2015-01-23 14:28:44 -08:00
install-gallium-links.mk targets/radeonsi/vdpau: convert to static/shared pipe-drivers 2014-06-22 23:06:01 +01:00
install-lib-links.mk mesa: Add clean-local rule to remove .lib links. 2014-12-12 12:11:49 -08:00
Makefile.am mesa: Remove tarballs/checksum rules. 2014-12-17 17:54:33 -08:00
SConstruct scons: Don't use bundled C99 headers for VS 2013. 2014-05-02 22:04:46 +01:00
VERSION mesa: Bump version to 10.5.0-devel. 2014-11-18 02:02:54 +00:00

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.

- 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.