# The Mesa 3D Graphics Library

# Mesa 9.1.3 Release Notes / May 21st, 2013

Mesa 9.1.3 is a bug fix release which fixes bugs found since the 9.1.1 release.

Mesa 9.1 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

    TBD

## New features

None.

## Bug fixes

This list is likely incomplete.

- Bug 39251 - Second Life viewers from release 2.7.4.235167 to the last 3.4.0.264911 crash on start.
- Bug 47478 - [wine] GLX_DONT_CARE does not work for GLX_DRAWABLE_TYPE or GLX_RENDER_TYPE
- Bug 56416 - [SNB bisected] SNB hang with rc6 and hiz on glxgears (and other GL apps) immediately after xinit.
- Bug 57436 - [GLSL1.40 IVB/HSW]Piglit spec/glsl-1.40/compiler_built-in-functions/inverse-mat2.frag fails
- Bug 61554 - [ivb] Mesa 9.1 performance regression on KWin's Lanczos shader
- Bug 61773 - abort is an incredibly not-smart way to handle IR validation
- Bug 62868 - solaris build broken with missing ffsll
- Bug 62999 - glXChooseFBConfig with GLX_DRAWABLE_TYPE, GLX_DONT_CARE fails
- Bug 63078 - EGL X11 Regression: Maximum swap interval is 0 (worked with 9.0)
- Bug 63447 - [i965 Bisected]Ogles1conform/Ogles2conform/Ogles3conform cases segfault
- Bug 64662 - [SNB 9.1 Bisected]Ogles2conform GL2ExtensionTests/depth_texture_cube_map/depth_texture_cube_map.test fail

## Changes

The full set of changes can be viewed by using the following GIT command:

      git log mesa-9.1.2..mesa-9.1.3

Alex Deucher (2):

- r600g: add new richland pci ids
- radeonsi: add new SI pci ids

Alexander Monakov (1):

- Honor GLX_DONT_CARE in MATCH_MASK

Andreas Boll (2):

- mesa: Add a script to generate the list of fixed bugs
- mesa: add usage examples to get-pick-list and shortlog scripts

Aras Pranckevicius (1):

- GLSL: fix lower_jumps to report progress properly

Brian Paul (3):

- mesa: remove platform checks around __builtin_ffs, __builtin_ffsll
- gallium/u_blitter: fix is_blit_generic_supported() stencil checking
- mesa: enable GL_ARB_texture_float if TEXTURE_FLOAT_ENABLED is defined

Chad Versace (2):

- egl/dri2: Fix min/max swap interval of configs
- intel: Allocate hiz in intel_renderbuffer_move_to_temp()

Chris Forbes (2):

- i965/fs: Don't try to use bogus interpolation modes pre-Gen6.
- mesa: don't memcmp() off the end of a cache key.

Dave Airlie (2):

- st/mesa: fix UBO offsets.
- ralloc: don't write to memory in case of alloc fail.

Eric Anholt (11):

- i965/fs: Remove creation of a MOV instruction that's never used.
- i965/fs: Move varying uniform offset compuation into the helper func.
- i965: Make the constant surface interface take a normal byte size.
- i965/fs: Avoid inappropriate optimization with regs_written > 1.
- i965/fs: Do CSE on gen7's varying-index pull constant loads.
- i965/fs: Clean up the setup of gen4 simd16 message destinations.
- i965/gen7: Skip resetting SOL offsets at batch start with HW contexts.
- i965/gen6: Reduce updates of transform feedback offsets with HW contexts.
- i965: Fix SNB GPU hangs when a blorp batch is the first thing to execute.
- i965: Fix hangs on HSW since the gen6 blorp fix.
- i965: Disable write masking when setting up texturing m0.

Haixia Shi (1):

- ACTIVE_UNIFORM_MAX_LENGTH should include 3 extra characters for arrays.

Ian Romanick (11):

- docs: Add 9.1.2 release md5sums
- mesa: Note that patch 0967c36 shouldn't actually get picked to the 9.1 branch
- mesa: NULL check the pointer before trying to dereference it
- egl/dri2: NULL check value returned by dri2_create_surface
- mesa: Don't leak shared state when context initialization fails
- mesa: Don't leak gl_context::BeginEnd at context destruction
- mesa/swrast: Refactor no-memory error checking in blit_linear
- mesa/swrast: Move free calls outside the attachment loop
- intel: Don't dereference a NULL pointer of calloc fails
- mesa: Note that a824692 is already back ported
- mesa: Bump version to 9.1.3

José Fonseca (1):

- winsys/sw/xlib: Prevent shared memory segment leakage.

Kenneth Graunke (9):

- mesa: Add new ctx->Stencil._WriteEnabled derived state flag.
- i965: Fix stencil write enable flag in 3DSTATE_DEPTH_BUFFER on Gen7+.
- mesa: Fix unpack function for ETC2_SRGB8_PUNCHTHROUGH_ALPHA1.
- mesa: Add an unpack function for ARGB2101010_UINT.
- mesa: Add unpack functions for R/RG/RGB [U]INT8/16/32 formats.
- mesa: Add unpack functions for A/I/L/LA [U]INT8/16/32 formats.
- glsl: Ignore redundant prototypes after a function's been defined.
- i965: Lower textureGrad() for samplerCubeShadow.
- i965/vs: Fix textureGrad() with shadow samplers on Haswell.

Maarten Lankhorst (1):

- nvc0: Fix fd leak in nvc0_create_decoder

Marek Olšák (5):

- radeonsi: add more cases for copying unsupported formats to resource_copy_region
- mesa: fix glGet queries depending on derived framebuffer state (v2)
- gallium/u_blitter: implement buffer clearing
- r600g: initialize CMASK and HTILE with the GPU using streamout
- st/mesa: depth-stencil-alpha state also depends on _NEW_BUFFERS

Martin Andersson (1):

- r600g: Fix UMAD on Cayman

Michel Dänzer (1):

- radeonsi: Handle arbitrary 2-byte formats in resource_copy_region

Paul Berry (7):

- glsl: Fix array indexing when constant folding built-in functions.
- i965: Reduce code duplication in handling of depth, stencil, and HiZ.
- glsl/linker: fix varying packing for non-flat integer varyings.
- glsl: Document lower_packed_varyings' "flat" requirement with an assert.
- glsl/linker: Adapt flat varying handling in preparation for geometry shaders.
- glsl/linker: Reduce scope of non-flat integer varying fix.
- intel: Do a depth resolve before copying images between miptrees.

Ralf Jung (1):

- egl/x11: Fix initialisation of swap_interval

Roland Scheidegger (1):

- gallivm: fix small but severe bug in handling multiple lod level strides

Vadim Girlin (1):

- gallium: handle drirc disable_glsl_line_continuations option