Mesa3D Graphics Library (Bleeding edge ray tracing branches)
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Chad Versace c4b87f129e meta: Disable dithering during glGenerateMipmap
Fixes tests 'dEQP-GLES3.functional.texture.mipmap.*.generate.rgba5551*' on
Intel Broadwell 0x1616.

The GL 4.5 spec describes the algorithm of glGenerateMipmap as:

    The contents of the derived images are computed by repeated, filtered
    reduction of the level base image.  [...] No particular filter algorithm is
    required, though a box filter is recommended as the default filter.

Consider a texture for which all pixels are identical at level 0.
From the spec's description above, one may reasonably assume that the "filtered
reduction" of level 0 produces a new miplevel for which again all pixels are
identical. For any 2x2 subspan of identical pixels, it is difficult to see how
the "filtered reduction" of that subspan can produce a pixel that differs from
the source pixels.

Dithering during _mesa_meta_GenerateMipmap() violated that reasonable
assumption.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99210
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: mesa-stable@lists.freedesktop.org
2017-01-03 08:22:23 -08:00
bin Introduce .editorconfig 2016-08-31 17:06:54 -07:00
docs doc/features.txt: update for freedreno 2017-01-03 10:46:13 -05:00
doxygen doxygen: Plumb through gallium/ to automated documentation 2016-05-30 17:53:45 +01:00
include dri: Add __DRI_IMAGE_FORMAT_ARGB1555 2016-12-27 09:13:43 -08:00
m4 build: Remove unused AX_CHECK_COMPILE_FLAG macro 2016-07-25 15:14:12 +02:00
scons scons: Recognize LLVM_CONFIG environment variable. 2016-11-24 13:37:33 -08:00
scripts get_reviewer.pl: fix mesa check 2016-08-30 16:44:00 -04:00
src meta: Disable dithering during glGenerateMipmap 2017-01-03 08:22:23 -08:00
.dir-locals.el dir-locals.el: Adds White Space support 2016-11-14 19:17:49 +02:00
.editorconfig Introduce .editorconfig 2016-08-31 17:06:54 -07:00
.gitattributes
.gitignore .gitignore: Ignore tags generated by `make tags` 2016-08-24 11:33:48 +01:00
.mailmap .mailmap: Update my address again 2016-08-25 13:55:52 -07:00
.travis.yml travis: remove no longer needed libudev-dev dependency 2016-10-18 17:06:24 +01:00
Android.common.mk android: avoid using libdrm with host modules 2016-11-02 14:43:26 +00:00
Android.mk android: add support for libmesa_amdgpu_addrlib 2016-09-13 10:06:04 +10:00
CleanSpec.mk android: Depend on gallium_dri from EGL, instead of linking in gallium. 2015-06-09 11:38:45 -07:00
Makefile.am automake: don't forget to pick wglext.h in the tarball 2016-10-24 09:44:26 +01:00
REVIEWERS reviewers: add Rob H for the Android EGL+build parts 2016-11-21 16:01:06 +00:00
SConstruct scons: whitespace cleanup 2016-05-25 12:23:12 -06:00
VERSION docs: add 13.1.0-devel release notes template, bump version 2016-10-19 19:10:16 +01:00
appveyor.yml appveyor: Update winflexbison download URL. 2016-09-13 17:54:51 +01:00
autogen.sh autogen.sh: pass --force to autoreconf, quote ORIGDIR 2015-03-11 23:28:26 +00:00
common.py scons: Recognize LLVM_CONFIG environment variable. 2016-11-24 13:37:33 -08:00
configure.ac configure: cleanup GLX_USE_TLS handling 2016-12-09 19:22:03 +00:00
install-gallium-links.mk gallium: Fix install-gallium-links.mk on non-bash /bin/sh 2016-10-10 08:56:12 -07:00
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.