Mesa3D Graphics Library (Bleeding edge ray tracing branches)
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Samuel Iglesias Gonsalvez 08a4639e81 glsl: don't lower fragdata array if the output data types don't match
Commit 7e414b5864 broke the gl_FragData array
into separate gl_FragData[i] variables, so drivers can eliminate useless
writes to gl_FragData improving their performance.

The problem occurs when GLSL IR code is linked in the following case:

* The FS output variable base data type does not match gl_FragData one (float
  vector)
* The FS output variable is replaced by gl_out_FragDataX because of commit
  7e414b5864 with X from 0 to GL_MAX_DRAW_BUFFERS.

Then the FS output variable base data type is lost in the resulting GLSL IR,
making that the driver does a wrong assignment to gl_out_FragData components
because of unmatching data types.

This patch reverts the fragdata array lowering when the output var base data type
doesn't match gl_out_FragData, i.e., when output variable base data type is
not a float or a float vector.

This patch fixes 250 dEQP tests (tested in an Intel Haswell machine)

dEQP-GLES3.functional.fragment_out.random.* (22 failed tests)
dEQP-GLES3.functional.fragment_out.array.uint.* (120 failed tests)
dEQP-GLES3.functional.fragment_out.array.int.* (108 failed tests)

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2015-05-05 12:50:22 +02:00
bin get-pick-list: Allow for non-whitespace between "CC:" and "mesa-stable" 2013-07-31 15:49:48 -07:00
docs egl: image_dma_buf_export - use KHR 64-bit type 2015-05-05 12:19:40 +10:00
doxygen mesa: remove empty glthread.h file 2014-03-03 13:08:59 -07:00
include egl: image_dma_buf_export - use KHR 64-bit type 2015-05-05 12:19:40 +10:00
m4 configure.ac: move AC_MSG_RESULT reporting back into the m4 macro 2015-03-24 20:49:32 +00:00
scons scons: Support LLVM 3.5 and 3.6 on windows. 2015-04-27 21:47:27 +01:00
src glsl: don't lower fragdata array if the output data types don't match 2015-05-05 12:50:22 +02:00
.dir-locals.el dir-locals.el: Don't set variables for non-programming modes 2015-02-02 12:02:55 +00:00
.gitattributes Disable autocrlf for Visual Studio project files. 2008-02-28 12:34:01 +09:00
.gitignore mesa: add .mesa-install-links files to gitignore 2015-04-17 15:24:14 -04:00
Android.common.mk android: fix building issues of host binaries 2015-04-22 15:53:35 +01:00
Android.mk android: fix the building rules for Android 5.0 2015-04-22 15:53:35 +01:00
CleanSpec.mk android: re-build all mesa binaries properly 2015-04-22 15:57:00 +01:00
Makefile.am makefile: add all headers to the tarball 2015-03-24 20:49:31 +00:00
SConstruct scons: Don't use bundled C99 headers for VS 2013. 2014-05-02 22:04:46 +01:00
VERSION Post-branch version bump to 10.6.0-devel, add release notes template 2015-02-07 19:12:20 +00:00
autogen.sh autogen.sh: pass --force to autoreconf, quote ORIGDIR 2015-03-11 23:28:26 +00:00
common.py common.py: Fix PEP 8 issues. 2015-03-16 22:55:08 -07:00
configure.ac clover: make llvm >= 3.5.0 and c++11 mandatory 2015-04-20 18:10:29 +00:00
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 install-lib-links: remove the .install-lib-links file 2015-02-24 15:33:25 +00:00

docs/README.WIN32

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.