Find a file
Kenneth Graunke 66a725570c i965: Only enable oMask output when there's a multisample FBO.
The ARB_sample_shading specification says that setting gl_SampleMask
bits to 0 means that the corresponding sample "should be considered
uncovered for the purposes of multisample fragment operations
(Section 4.1.3)."

The OpenGL 4.4 specification, section 17.3.3 ("Multisample Fragment
Operations") specifies:

"No changes to the fragment alpha or coverage values are made at this
 step if MULTISAMPLE is disabled, or if the value of SAMPLE_BUFFERS
 is not one."

oMask output alters coverage masks and can kill pixels.  We need to
disable it in the above case, which conveniently corresponds to
key->multisample_fbo being false.

Khronos bug #12188 also spells this out clearly:
https://cvs.khronos.org/bugzilla/show_bug.cgi?id=12188

Fixes two Piglit tests:
tests/spec/arb_sample_shading/builtin-gl-sample-mask-simple 0
tests/spec/arb_sample_shading/builtin-gl-sample-mask 0

Fixes 21 ES3 conformance tests:
ES31-CTS.sample_variables.mask.rgba8.samples_0.mask_zero
ES31-CTS.sample_variables.mask.rgba8.samples_0.mask_0
ES31-CTS.sample_variables.mask.rgba8.samples_0.mask_1
ES31-CTS.sample_variables.mask.rgba8.samples_0.mask_2
ES31-CTS.sample_variables.mask.rgba8.samples_0.mask_3
ES31-CTS.sample_variables.mask.rgba8.samples_0.mask_7
ES31-CTS.sample_variables.mask.rgba8i.samples_0.mask_zero
ES31-CTS.sample_variables.mask.rgba8i.samples_0.mask_3
ES31-CTS.sample_variables.mask.rgba8i.samples_0.mask_4
ES31-CTS.sample_variables.mask.rgba8i.samples_0.mask_5
ES31-CTS.sample_variables.mask.rgba8i.samples_0.mask_7
ES31-CTS.sample_variables.mask.rgba8ui.samples_0.mask_zero
ES31-CTS.sample_variables.mask.rgba8ui.samples_0.mask_2
ES31-CTS.sample_variables.mask.rgba8ui.samples_0.mask_3
ES31-CTS.sample_variables.mask.rgba8ui.samples_0.mask_4
ES31-CTS.sample_variables.mask.rgba8ui.samples_0.mask_6
ES31-CTS.sample_variables.mask.rgba32f.samples_0.mask_zero
ES31-CTS.sample_variables.mask.rgba32f.samples_0.mask_0
ES31-CTS.sample_variables.mask.rgba32f.samples_0.mask_2
ES31-CTS.sample_variables.mask.rgba32f.samples_0.mask_5
ES31-CTS.sample_variables.mask.rgba32f.samples_0.mask_7

Fixes 9 dEQP-GLES31.functional.shaders.sample_variables tests:
sample_mask.discard_half_per_pixel.default_framebuffer
sample_mask.discard_half_per_pixel.singlesample_rbo
sample_mask.discard_half_per_pixel.singlesample_texture
sample_mask.discard_half_per_sample.default_framebuffer
sample_mask.discard_half_per_sample.singlesample_rbo
sample_mask.discard_half_per_sample.singlesample_texture
sample_mask.discard_half_per_two_samples.default_framebuffer
sample_mask.discard_half_per_two_samples.singlesample_rbo
sample_mask.discard_half_per_two_samples.singlesample_texture

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
2016-04-20 16:18:47 -07:00
bin mesa; add get-extra-pick-list.sh script into bin/ 2016-02-29 11:25:35 +00:00
docs radeonsi: enable TGSI support cap for compute shaders 2016-04-19 18:31:23 +02:00
doxygen doxygen: remove git rebase fallouts 2016-04-14 09:49:09 +01:00
include dri_interface: add interface for GL interop with other APIs (v2) 2016-04-20 12:18:47 +02:00
m4 gallium/swr: confine c++11 flag to swr driver 2016-04-15 14:43:01 -05:00
scons scons: Show the unit test full path. 2016-04-19 11:31:11 +01:00
src i965: Only enable oMask output when there's a multisample FBO. 2016-04-20 16:18:47 -07:00
.dir-locals.el dir-locals.el: set case-label offset to 0 2016-02-03 15:44:51 -05:00
.gitattributes Disable autocrlf for Visual Studio project files. 2008-02-28 12:34:01 +09:00
.gitignore opencl: fix .gitignore for .install-gallium-links 2016-03-09 17:16:52 +00:00
.travis.yml travis: Add a test build with scons. 2015-12-01 15:09:56 -08:00
Android.common.mk Android: remove headers from LOCAL_SRC_FILES 2016-02-29 10:51:44 +00:00
Android.mk glsl: move the android build scripts a level up 2016-04-11 19:08:23 +01:00
appveyor.yml appveyor: Run unit tests. 2016-04-14 07:19:04 +01:00
autogen.sh autogen.sh: pass --force to autoreconf, quote ORIGDIR 2015-03-11 23:28:26 +00:00
CleanSpec.mk android: Depend on gallium_dri from EGL, instead of linking in gallium. 2015-06-09 11:38:45 -07:00
common.py scons: Allow building with Address Sanitizer. 2016-04-13 06:54:32 +01:00
configure.ac Merge remote-tracking branch 'public/master' into vulkan 2016-04-15 13:35:16 -07:00
install-gallium-links.mk install-gallium-links.mk: handle multiple libraries 2016-04-14 16:30:57 +01:00
install-lib-links.mk install-lib-links: remove the .install-lib-links file 2015-02-24 15:33:25 +00:00
Makefile.am automake: explicitly set distcheck configure flags 2016-02-29 10:51:45 +00:00
SConstruct scons: Add a "check" target to run all unit tests. 2016-04-14 07:19:04 +01:00
VERSION mesa: bump version 2016-02-22 10:38:37 -05:00

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 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.