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Iago Toral Quiroga 845ad2667a i965: Fix textureSize for Lod > 0 with non-mipmap filters
Currently, when the MinFilter is GL_LINEAR or GL_NEAREST we hide the
actual miplevel count from the hardware (and we avoid re-creating
the miptree structure with all the levels), since we don't expect
levels other than the base level to be needed. Unfortunately,
GLSL's textureSize() function is an exception to this rule. This
function takes a lod parameter that we need to use to return the
size of the appropriate miplevel (if it exists). The spec only
requires that the miplevel exists, so even if the sampler is
configured with a linear or nearest MinFilter, as far as the user
has uploaded miplevels for the texture, textureSize() should return
the appropriate sizes.

This patch fixes this by exposing the actual miplevel count for all
sampling engine textures while keeping the original implementation
for render targets (for render targets textures we do not provide
the miplevel count but the actual LOD we are wrting to, so we
want to make sure that we make this the base level).

Fixes 28 dEQP tests in the following category:
dEQP-GLES3.functional.shaders.texture_functions.texturesize.*

Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
2015-05-18 11:23:17 +02:00
bin get-pick-list: Allow for non-whitespace between "CC:" and "mesa-stable" 2013-07-31 15:49:48 -07:00
docs docs/relnotes: Mark off ARB_direct_state_access for 10.6 2015-05-14 15:48:18 +02:00
doxygen mesa: remove empty glthread.h file 2014-03-03 13:08:59 -07:00
include egl: remove remaining EGL_MESA_copy_context skeleton 2015-05-14 21:05:16 +00:00
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 i965: Fix textureSize for Lod > 0 with non-mipmap filters 2015-05-18 11:23:17 +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
autogen.sh autogen.sh: pass --force to autoreconf, quote ORIGDIR 2015-03-11 23:28:26 +00:00
CleanSpec.mk android: re-build all mesa binaries properly 2015-04-22 15:57:00 +01:00
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
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

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.