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Kenneth Graunke 28f4be9eb9 i965: Fix out-of-order sampler unit usage in ARB fragment programs. 
ARB fragment programs use texture unit numbers directly, unlike GLSL
which has an extra indirection.  If a fragment program only uses one
texture assigned to GL_TEXTURE1, SamplersUsed will only contain a single
bit, which would make us only upload a single surface/sampler state
entry.  However, it needs to be the second entry.

Using _mesa_fls() instead of _mesa_bitcount() solves this.  For ARB
programs, this makes num_samplers the ID of the highest texture unit
used.  Since GLSL uses consecutive integers assigned by the linker,
_mesa_fls() should give the same result as _mesa_bitcount()..

Fixes a regression since 85e8e9e000,
which caused GPU hangs in ETQW (and probably others), as well as
breaking piglit test fp-fragment-position.

v2: Add a comment, as suggested by Matt.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=54098
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=54179
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Tested-by: meng <mengmeng.meng@intel.com>
2012-09-12 22:13:05 -07:00
bin mesa: remove obsolete confdiff.sh 2012-06-20 01:51:38 -07:00
configs mesa: bump version to 9.1 (devel) 2012-09-09 03:00:17 -07:00
docs Remove libGLU 2012-08-31 10:58:15 -07:00
doxygen Fix building glsl when using automake-1.12 after 68e04cc6 2012-07-15 15:27:26 +01:00
include Remove libGLU 2012-08-31 10:58:15 -07:00
scons scons: Remove leftover print statement. 2012-08-31 08:26:29 -07:00
src i965: Fix out-of-order sampler unit usage in ARB fragment programs. 2012-09-12 22:13:05 -07:00
.dir-locals.el Add emacs setup for the docs/devinfo.html comment wrapping recommendation. 2012-07-11 09:20:21 -07:00
.gitattributes Disable autocrlf for Visual Studio project files. 2008-02-28 12:34:01 +09:00
.gitignore automake: Move top-level makefile to automake. 2012-06-11 09:28:00 -07:00
acinclude.m4 autoconf: Attempt to figure out the PIC flags for the platform 2008-05-09 07:05:16 -07:00
Android.common.mk mesa/dlopen: use HAVE_DLOPEN instead of _GNU_SOURCE 2012-08-24 11:08:19 -07:00
Android.mk radeonsi: initial WIP SI code 2012-04-13 10:32:06 -04:00
autogen.sh build: Fix autogen.sh to allow out-of-tree builds 2012-08-14 10:54:39 -07:00
common.py scons: Add option to enable floating-point textures. 2012-08-15 22:04:24 -07:00
configure.ac build: Don't list glproto and dri2proto in pkg-config file 2012-09-12 11:26:28 -07:00
Makefile.am mesa: bump version to 9.1 (devel) 2012-09-09 03:00:17 -07:00
SConstruct scons: Disable saving options automatically. 2011-07-01 19:04:57 +01:00

docs/README.WIN32 

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.