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Paul Berry d3150ebc8c mesa: Move transform feedback error check to reduce array overflow risk.
Previous to this patch, we didn't do the limit check for
MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS until the end of the
store_tfeedback_info() function, *after* storing all of the transform
feedback info in the gl_transform_feedback_info::Outputs array.  This
meant that the limit check wouldn't prevent us from overflowing the
array and corrupting memory.

This patch moves the limit check to the top of tfeedback_decl::store()
so that there is no risk of overflowing the array.  It also adds
assertions to verify that the checks for
MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS and
MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS are sufficient to avoid
array overflow.

Note: strictly speaking this patch isn't necessary, since the maximum
possible number of varyings is MAX_VARYING (16), whereas the size of
the Outputs array is MAX_PROGRAM_OUTPUTS (64), so it's impossible to
have enough varyings to overflow the array.  However it seems prudent
to do the limit check before the array access in case these limits
change in the future.

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
2012-01-11 07:57:56 -08:00
bin Add .gitignore files to exclude unit test build artifacts from git 2012-01-05 13:27:12 -08:00
configs mesa: Bump version to 8.0 (devel) 2012-01-09 12:01:55 -08:00
docs softpipe: Document new llvm flag 2012-01-09 21:39:32 +01:00
doxygen gallium/failover: Remove the deprecated module. 2011-11-30 17:26:40 +00:00
include dri2: Add createContextAttribs entry point for DRISW version 3 2011-12-23 08:49:53 -08:00
scons scons: Fix libGL.so build. 2012-01-10 17:42:02 +00:00
src mesa: Move transform feedback error check to reduce array overflow risk. 2012-01-11 07:57:56 -08:00
tests Add .gitignore files to exclude unit test build artifacts from git 2012-01-05 13:27:12 -08:00
.emacs-dirvars Add emacs dirvars file with Mesa indention definition. 2007-09-18 10:02:51 -04:00
.gitattributes Allow CRLF automatic conversion on MSVC project files. 2008-06-24 22:25:52 +09:00
.gitignore Ignore all shared objects 2011-10-04 07:48:45 -06:00
acinclude.m4 autoconf: Attempt to figure out the PIC flags for the platform 2008-05-09 07:05:16 -07:00
Android.common.mk android: pass -std=c99 by default 2011-11-26 11:42:08 +08:00
Android.mk android: move libGLES_mesa build rules to src/egl/main/. 2011-11-26 11:42:08 +08:00
autogen.sh autogen.sh: Honor NOCONFIGURE environment variable 2011-09-19 19:53:49 +01:00
common.py gallium/cell: Remove the driver. 2011-11-29 20:26:53 +00:00
configure.ac configure.ac: Remove unused GLUT substitutions. 2012-01-06 18:16:10 -08:00
Makefile mesa: Bump version to 8.0 (devel) 2012-01-09 12:01:55 -08:00
SConstruct scons: Disable saving options automatically. 2011-07-01 19:04:57 +01:00

File: docs/README.WIN32

Last updated: 23 April 2011


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.


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.