Topi Pohjolainen a6022e5405 meta/blit: Use gl_FragColor also in the msaa blit shader
Fixes framebuffer_blit_functionality_multisampled_to_singlesampled_blit
es3 cts test on bdw. Also fixes this on ivb when ivb is forced to use
the meta path.

No piglit regressions on IVB.

Further input from Ken:

 "Unfortunately, this doesn't fix MRT for integer data.

  In the single-sampled case, since we're directly copying data, we were
  read/copy/write data as "float" values, which actually contained the
  integer bits.  Here, we can't do that since we need to process the
  actual integer data.

  I do wonder if we could use intBitsToFloat/uintBitsToFloat to stuff the
  integer bits in the float gl_FragColor output.  Just a crazy idea.

  In the long term (post 10.2), I think we should draft an extension that
  allows you to do "layout(location = all)" on user-defined fragment
  shader outputs.  (Or some similar syntax.)"

Signed-off-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Cc: "10.2" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
2014-05-28 10:32:29 +03:00
2014-05-23 11:37:47 +01:00
2013-01-10 22:01:31 +01:00
2014-05-02 21:43:48 -07:00

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 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.

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.
S
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