Re-revert "Re-land r207660 - "Upgrading Mesa to 9.0.3."""

third_party/mesa/README.chromium

 Name: mesa
-Version: 9.0.3
+Version: 7.9
 URL: http://www.mesa3d.org/
 License: MIT and LGPL v2
 Security Critical: Yes
 
 Description:
-This directory contains a copy of the Mesa sources with minor
-modifications to work in Chromium's build infrastructure.
+This directory contains a copy of these MesaLib components:
+
+Main Mesa code    src/mesa/
+Device drivers    src/mesa/drivers/*
+Ext headers       include/GL/glext.h
+                  include/GL/glxext.h
+SGI GLU library   src/glu/sgi/
 
 The license file in this directory is derived from src/docs/license.html
 and src/docs/COPYING.
 
-Modifications made:
+Modifications made with initial commit:
+- Converted to utf-8 with: vim +"argdo write ++enc=utf-8" *.c
+
 - Added the file README.chromium (this file)
 
-- Disabled optimizations using #pragma optimize('', off) in the
-  following files:
-  - src/src/mesa/main/mipmap.c
-  - src/src/mesa/main/pack.c
-  - src/src/mesa/math/m_eval.c
-  - src/src/mesa/swrast/s_texcombine.c
+Later modifications (see chromium.patch):
+- Added OSMesaGetProcAddress to src/src/mesa/drivers/osmesa/osmesa.def
 
-- Checked in sources normally autogenerated during Mesa's build
-  process under src/chromium_gensrc.
+- Added #pragma optimize('', off) to:
+  - src\src\mesa\main\histogram.c
+  - src\src\mesa\main\image.c
+  - src\src\mesa\main\mipmap.c
+  - src\src\mesa\math\m_eval.c
+  - src\src\mesa\swrast\s_texcombine.c
 
-- Modified _mesa_add_parameter to not read from uninitialized
-  memory
+- Deleted src/include/EGL/ - it was conflicting with angle
+  - Also deleted src/include/GLES2/ and src/include/KHR/ for
+    similar reasons
+  - Deleted src/include/GLES/ and src/include/VG/ because they
+    were unneeded
 
-- Added typedefs for EGLNative*Type in eglplatform.h, guarded by an
-  __APPLE__ define
+- Changed these typedefs in glext.h to be the same as khrplatform.h
+    typedef signed long int GLintptr;
+    typedef signed long int GLsizeiptr;
+    typedef signed long int GLintptrARB;
+    typedef signed long int GLsizeiptrARB;
+
+- Commented out this in gl.h:
+#if (defined(__BEOS__) && defined(__POWERPC__)) || defined(__QUICKDRAW__)
+#  define PRAGMA_EXPORT_SUPPORTED               1
+#endif
+
+- Commented out this in osmesa.h:
+#if defined(__BEOS__) || defined(__QUICKDRAW__)
+#pragma export on
+#endif
+
+- Commented out this in gl.h:
+#    define GLAPI __declspec(dllimport)
+
+- Added src/glsl/safe_strcmp.[ch] to handle NULL pointers portably.
+  Changed several files in src/glsl/ to use this new entry point.
+
+- Added src/mesa/drivers/osmesa/empty.cpp to fix linkage of osmesa.so
+  on Mac OS X.
+
+- Changed glcpp-parse.[cy], glcpp.h, ir_function_inlining.cpp, and
+  ir_validate.cpp to avoid including inttypes.h on Windows.
+
+- Changed glapi_nop.c to generate custom OpenGL entry points rather
+  than simply installing NoOpGeneric, because with __stdcall calling
+  convention it is illegal to have a mismatch in the number of
+  arguments passed from caller to callee.
+
+- Guarded #define PUBLIC in compiler.h to avoid warnings about macro
+  redefinitions.
+
+- Changed querymatrix.c to understand availability of fpclassify on
+  Linux.
+
+- Guarded all usage of EGL_Y_INVERTED_NOK with EGL_NOK_texture_from_pixmap
+  so that it can be compiled against standard EGL 1.4 headers.
+
+- Initialized uninitialized mask variable in eglconfig.c line 245.
+
+- Fixed compiler warning about cast to pointer from integer of different size
+  in eglapi.c line 276. Replaced void* with EGLNativeDisplayType.
+
+- Suppressed spurious compiler warning from gcc in eglCompareConfig by
+  reorganizing the .h a little
+
+- Corrected the comparison in src/mesa/main/teximage.c line 2801 to check
+  if width > 0 && height > 0 && depth > 0, instead of checking
+  width > 0 && height > 0 && height > 0 . See
+  https://bugs.freedesktop.org/show_bug.cgi?id=37648
+
+- Suppressed (accurate) compiler warnings about return type conflicts
+  from gl_apinop.c.
+  http://code.google.com/p/chromium/issues/detail?id=92568
+  https://bugs.freedesktop.org/show_bug.cgi?id=40028
+
+- Merged fix for https://bugs.freedesktop.org/show_bug.cgi?id=51574
+  (commit b1802a2115323233352da558430e109ff187b8af)
+
+- Merged the replacement of memcpy() with memmove() in SHIFT_ARRAY declared in
+  s_span.c (commit a44d715d2b19dc2f8f48b01144cc38e4e2c5015a)
+
+- Suppressed the OOB read reported by AddressSanitizer in swizzle_for_size from
+  ir_to_mesa.cpp
+  https://code.google.com/p/chromium/issues/detail?id=139772
+  https://bugs.freedesktop.org/show_bug.cgi?id=52996
+  https://codereview.chromium.org/11549005/
+
+- Suppressed the OOB read reported by AddressSanitizer in _mesa_add_parameter
+  from prog_parameter.c
+  http://code.google.com/p/chromium/issues/detail?id=142316
+  https://codereview.chromium.org/11549005/
+
+- Fix the compile errors on Android
+
+- Added constants for GL_NVX_gpu_memory_info to glext.h
+
+- Added constants for GL_EXT_discard_framebuffer to glext.h
+
+- Disabled the IEEE float optimized UNCLAMPED_FLOAT_TO_UBYTE and
+  CLAMPED_FLOAT_TO_UBYTE (src/mesa/main/macros.h) in chromium version
+  of mesa.  They produce slightly different results than the
+  un-optimized versions that are used when DEBUG is defined.
+
+- Cleaned up redundant comparison in nvvertparse.c.