Mesa 9.2 Release Notes / (August 27, 2013)
==========================================

Mesa 9.2 is a new development release. People who are concerned with
stability and reliability should stick with a previous release or wait
for Mesa 9.2.1.

Mesa 9.2 implements the OpenGL 3.1 API, but the version reported by
glGetString(GL_VERSION) or glGetIntegerv(GL_MAJOR_VERSION) /
glGetIntegerv(GL_MINOR_VERSION) depends on the particular driver being
used. Some drivers don't support all the features required in OpenGL
3.1. OpenGL 3.1 is **only** available if requested at context creation
because GL_ARB_compatibility is not supported.

MD5 checksums
-------------

::

   4f93c6475ec656fc1f7b93aeffc9b6c4  MesaLib-9.2.0.tar.gz
   4185b6aae890bc62a964f4b24cc1aca8  MesaLib-9.2.0.tar.bz2
   3bc5339bc98b9c37777ffd14e3a8eca4  MesaLib-9.2.0.zip

New features
------------

Note: some of the new features are only available with certain drivers.

-  GL_ARB_shading_language_420pack in all drivers that support GLSL
   1.30.
-  GL_ARB_texture_buffer_range
-  GL_ARB_texture_multisample
-  GL_ARB_texture_storage_multisample
-  GL_ARB_texture_query_lod
-  GL_ARB_texture_storage on radeon, r200, and nouveau
-  GL_EXT_discard_framebuffer in all OpenGL ES (all versions) drivers
-  GL_EXT_framebuffer_multisample_blit_scaled on i965
-  Added new freedreno gallium driver
-  OSMesa interface for gallium llvmpipe/softpipe drivers
-  Gallium Heads-Up Display (HUD) feature for performance monitoring
-  Added support for UVD (2.2 and 3.0) video decoding on r600g and
   radeonsi through VDPAU (requires Kernel 3.10 or later)

Bug fixes
---------

Attempts have been made to **not** include bugs fixed in previous 9.1
releases or bugs that were regressions during 9.2 development. This list
is likely incomplete.

-  `Bug 41787 <https://bugs.freedesktop.org/show_bug.cgi?id=41787>`__ -
   [llvmpipe] stencil broken
-  `Bug 44618 <https://bugs.freedesktop.org/show_bug.cgi?id=44618>`__ -
   Cross-compilation broken by glsl builtin_compiler
-  `Bug 46632 <https://bugs.freedesktop.org/show_bug.cgi?id=46632>`__ -
   Make the alignment checks for the readpixel blit fastpath a bit more
   lenient
-  `Bug 47116 <https://bugs.freedesktop.org/show_bug.cgi?id=47116>`__ -
   Enemy territory freezes with rs880 and commit
   fbebd431ec4e2e461a0cbcd5f3a04a000b8f6bbf
-  `Bug 47248 <https://bugs.freedesktop.org/show_bug.cgi?id=47248>`__ -
   autogen missing dependency on flex and bison, causes infinite loop in
   glsl build
-  `Bug 48694 <https://bugs.freedesktop.org/show_bug.cgi?id=48694>`__ -
   radeonsi_pipe.c:322:7: error: ‘PIPE_CAP_DUAL_SOURCE_BLEND’ undeclared
-  `Bug 50655 <https://bugs.freedesktop.org/show_bug.cgi?id=50655>`__ -
   [r600g][RV670 HD3870] Ioquake games causes GPU lockup (waiting for
   0x00003039 last fence id 0x00003030)
-  `Bug 51471 <https://bugs.freedesktop.org/show_bug.cgi?id=51471>`__ -
   [965gm] Corrupted graphics in corners of screen with pixel shaders
   enabled
-  `Bug 51782 <https://bugs.freedesktop.org/show_bug.cgi?id=51782>`__ -
   mesa-8.0.3: fails to compile against uclibc
-  `Bug 54240 <https://bugs.freedesktop.org/show_bug.cgi?id=54240>`__ -
   [swrast] piglit fbo-generatemipmap-filtering regression
-  `Bug 55503 <https://bugs.freedesktop.org/show_bug.cgi?id=55503>`__ -
   Constant vertex attributes broken
-  `Bug 55783 <https://bugs.freedesktop.org/show_bug.cgi?id=55783>`__ -
   glEnable(GL_FRAMEBUFFER_SRGB) has no effect on the backbuffer
-  `Bug 55825 <https://bugs.freedesktop.org/show_bug.cgi?id=55825>`__ -
   [Bisected i965]Oglc
   max_values(advanced.fragmentProgram.GL_MAX_PROGRAM_ALU_INSTRUCTIONS_ARB)
   causes OOM-killer
-  `Bug 56920 <https://bugs.freedesktop.org/show_bug.cgi?id=56920>`__ -
   [sandybridge][uxa] graphics very glitchy and always flickering
-  `Bug 57753 <https://bugs.freedesktop.org/show_bug.cgi?id=57753>`__ -
   leak in loop_analysis
-  `Bug 57875 <https://bugs.freedesktop.org/show_bug.cgi?id=57875>`__ -
   Second Life viewer bad rendering with git-ec83535
-  `Bug 58666 <https://bugs.freedesktop.org/show_bug.cgi?id=58666>`__ -
   rv670 + llvm = errors.
-  `Bug 58680 <https://bugs.freedesktop.org/show_bug.cgi?id=58680>`__ -
   [IVB] Graphical glitches in 0 A.D
-  `Bug 58872 <https://bugs.freedesktop.org/show_bug.cgi?id=58872>`__ -
   Mac OS X configure: error: Couldn't find clock_gettime
-  `Bug 59322 <https://bugs.freedesktop.org/show_bug.cgi?id=59322>`__ -
   r300g MSAA breaks Half-Life 2 in Wine
-  `Bug 59364 <https://bugs.freedesktop.org/show_bug.cgi?id=59364>`__ -
   [bisected] Mesa build fails: clientattrib.c:33:22: fatal error:
   indirect.h: No such file or directory
-  `Bug 59439 <https://bugs.freedesktop.org/show_bug.cgi?id=59439>`__ -
   glCopyPixels generates no fragments (occlusion_query_meta_fragments
   test fails)
-  `Bug 59440 <https://bugs.freedesktop.org/show_bug.cgi?id=59440>`__ -
   glBitmap generates no fragments (occlusion_query_meta_fragments test
   fails)
-  `Bug 59494 <https://bugs.freedesktop.org/show_bug.cgi?id=59494>`__ -
   [Bisected]Piglit glean_depthStencil fails
-  `Bug 59592 <https://bugs.freedesktop.org/show_bug.cgi?id=59592>`__ -
   Radeon HD 5670: reproducable GPU lockups with htile enabled
-  `Bug 59648 <https://bugs.freedesktop.org/show_bug.cgi?id=59648>`__ -
   [SNB/IVB/HSW Bisected]Piglit
   spec/ARB_uniform_buffer/object_layout-std140-base-size-and-alignment
   fails
-  `Bug 59701 <https://bugs.freedesktop.org/show_bug.cgi?id=59701>`__ -
   lp_test_arit fails on non-sse41 capable machines, breaking make check
-  `Bug 59737 <https://bugs.freedesktop.org/show_bug.cgi?id=59737>`__ -
   [bisected] 0d108116bd80b757fb01a84a9f1946ef870b57b8 breaks osmesa
   when cross compiling
-  `Bug 59740 <https://bugs.freedesktop.org/show_bug.cgi?id=59740>`__ -
   [i965 Bisected]Oglc api-error(negative.glEvalMesh) fails
-  `Bug 59851 <https://bugs.freedesktop.org/show_bug.cgi?id=59851>`__ -
   AC_ARG_WITH misusage leading to mesa configure failure
-  `Bug 59873 <https://bugs.freedesktop.org/show_bug.cgi?id=59873>`__ -
   [swrast] piglit ext_framebuffer_multisample-interpolation 0
   centroid-edges regression
-  `Bug 59876 <https://bugs.freedesktop.org/show_bug.cgi?id=59876>`__ -
   glGetTexLevelParameteriv broken for indirect rendering
-  `Bug 60038 <https://bugs.freedesktop.org/show_bug.cgi?id=60038>`__ -
   [osmesa] [git] building 32-bit mesa on 64 bit fails
-  `Bug 60047 <https://bugs.freedesktop.org/show_bug.cgi?id=60047>`__ -
   [softpipe] piglit masked-clear regression
-  `Bug 60052 <https://bugs.freedesktop.org/show_bug.cgi?id=60052>`__ -
   [Bisected]Piglit glx_extension_string_sanity fail
-  `Bug 60082 <https://bugs.freedesktop.org/show_bug.cgi?id=60082>`__ -
   [ FAILED ] DispatchSanity_test.GL31_CORE
-  `Bug 60086 <https://bugs.freedesktop.org/show_bug.cgi?id=60086>`__ -
   Wayland platform backend crashes if there's no back buffer during
   dri2_swap_buffers
-  `Bug 60098 <https://bugs.freedesktop.org/show_bug.cgi?id=60098>`__ -
   [softpipe] Unexpected PIPE_CAP 78 query
-  `Bug 60172 <https://bugs.freedesktop.org/show_bug.cgi?id=60172>`__ -
   Planeshift: triangles where grass would be
-  `Bug 60200 <https://bugs.freedesktop.org/show_bug.cgi?id=60200>`__ -
   radeon_bo with virtual address referencing mismatch
-  `Bug 60212 <https://bugs.freedesktop.org/show_bug.cgi?id=60212>`__ -
   [Bisected] Weston black output
-  `Bug 60524 <https://bugs.freedesktop.org/show_bug.cgi?id=60524>`__ -
   [softpipe] piglit depthstencil-render-miplevels 146 s=z24_s8
   regression
-  `Bug 60527 <https://bugs.freedesktop.org/show_bug.cgi?id=60527>`__ -
   [softpipe] fbo-stencil GL_DEPTH24_STENCIL8 clear regression
-  `Bug 60633 <https://bugs.freedesktop.org/show_bug.cgi?id=60633>`__ -
   EXT_texture_sRGB does not work in game The Cave on IvyBridge
-  `Bug 60737 <https://bugs.freedesktop.org/show_bug.cgi?id=60737>`__ -
   In GLSL ES, a missing FS precision qualifier does not generate an
   error
-  `Bug 60866 <https://bugs.freedesktop.org/show_bug.cgi?id=60866>`__ -
   GLSL performance issues for uniform buffer objects
-  `Bug 61036 <https://bugs.freedesktop.org/show_bug.cgi?id=61036>`__ -
   Shader fails to build in LLVMpipe, aborts program
-  `Bug 61200 <https://bugs.freedesktop.org/show_bug.cgi?id=61200>`__ -
   insufficient linking of libxatracker.so
-  `Bug 61635 <https://bugs.freedesktop.org/show_bug.cgi?id=61635>`__ -
   glVertexAttribPointer(id, GL_UNSIGNED_BYTE, GL_FALSE,...) does not
   work
-  `Bug 62466 <https://bugs.freedesktop.org/show_bug.cgi?id=62466>`__ -
   r600g hyperz lockups with KSP 0.19
-  `Bug 62669 <https://bugs.freedesktop.org/show_bug.cgi?id=62669>`__ -
   HyperZ freeze when playing PrBoom-Plus demo with lots of monsters
-  `Bug 62721 <https://bugs.freedesktop.org/show_bug.cgi?id=62721>`__ -
   GPU lockup in Minecraft 1.5.1 with HyperZ
-  `Bug 62830 <https://bugs.freedesktop.org/show_bug.cgi?id=62830>`__ -
   [i965 bisected] Wrong Lightning on Freespace 2 SCP (patch attached)
-  `Bug 63124 <https://bugs.freedesktop.org/show_bug.cgi?id=63124>`__ -
   [r600g] HyperZ lockup on REDWOOD in Half Life 2 Deathmatch
-  `Bug 63702 <https://bugs.freedesktop.org/show_bug.cgi?id=63702>`__ -
   tiling2d in radeon trash vdpau UVD textures
-  `Bug 64935 <https://bugs.freedesktop.org/show_bug.cgi?id=64935>`__ -
   [swrast] s_texfetch.c:1335: set_fetch_functions: Assertion
   \`texImage->FetchTexel' failed.
-  `Bug 64959 <https://bugs.freedesktop.org/show_bug.cgi?id=64959>`__ -
   Cannot build against EGL without X11
-  `Bug 65112 <https://bugs.freedesktop.org/show_bug.cgi?id=65112>`__ -
   glcpp hangs parsing line continuations
-  `Bug 65958 <https://bugs.freedesktop.org/show_bug.cgi?id=65958>`__ -
   GPU Lockup on Trinity 7500G
-  `Bug 66450 <https://bugs.freedesktop.org/show_bug.cgi?id=66450>`__ -
   JUNIPER UVD accelerated playback of MPEG 1/2 streams does not work
-  `Bug 66606 <https://bugs.freedesktop.org/show_bug.cgi?id=66606>`__ -
   [i965 bisected]GLBenchmark 2.5.1/2.7.0 sometimes render error with
   gnome-session enabling SNA
-  `Bug 66713 <https://bugs.freedesktop.org/show_bug.cgi?id=66713>`__ -
   Team Fortress 2 crashes with r600-sb on HD4850
-  `Bug 67354 <https://bugs.freedesktop.org/show_bug.cgi?id=67354>`__ -
   glsl_parser.cpp is broken with bison 3.0
-  `Bug 67548 <https://bugs.freedesktop.org/show_bug.cgi?id=67548>`__ -
   glGetAttribLocation seems to be broken
-  `Bug 67927 <https://bugs.freedesktop.org/show_bug.cgi?id=67927>`__ -
   R600_DEBUG=sb: Celestia show 2 earths, one wrongly rendered
-  `Bug 67934 <https://bugs.freedesktop.org/show_bug.cgi?id=67934>`__ -
   [SNB/IVB/HSW 9.2
   Bisected]Ogles2conform/GL2Tests/glUniform/glUniform.test fails with
   gnome-session enable compositing
-  `Bug 68162 <https://bugs.freedesktop.org/show_bug.cgi?id=68162>`__ -
   [radeonsi] texture rendering is broken in Source-Engine games
-  `Bug 68195 <https://bugs.freedesktop.org/show_bug.cgi?id=68195>`__ -
   piglit tests vs-struct-pad and fs-struct-pad both fail

Changes
-------

-  Removed d3d1x state tracker (unused, unmaintained and broken)
-  Removed GL_EXT_clip_volume_hint because no driver had enabled it
   since 2007.
-  Removed GL_MESA_resize_buffers because it was only really implemented
   by the (unsupported) GDI driver.
-  GL_EXT_separate_shader_objects has been removed from all Gallium
   drivers, because it disallows a critical GLSL shader optimization.
   GL_ARB_separate_shader_objects doesn't have this issue.
-  i965 Gen6+ requires Kernel 3.6 or later. (92d2f5a)
