# Mesa 18.2.1 Release Notes / September 21, 2018

Mesa 18.2.1 is a bug fix release which fixes bugs found since the 18.2.0 release.

Mesa 18.2.0 implements the OpenGL 4.5 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 4.5. OpenGL 4.5 is only available if requested at context creation. Compatibility contexts may report a lower version depending on each driver.

## SHA256 checksums

    SHA256: 45419ccbe1bf9a2e15ffe71ced34615002e1b42c24b917fbe2b2f58ab1970562  mesa-18.2.1.tar.gz
    SHA256: 9636dc6f3d188abdcca02da97cedd73640d9035224efd5db724187d062c81056  mesa-18.2.1.tar.xz

## New features

None

## Bug fixes

- Bug 103241 - Anv crashes when using 64-bit vertex inputs

- Bug 107280 - [DXVK] Batman: Arkham City with tessellation enabled hangs on SKL GT4

- Bug 107772 - Mesa preprocessor matches if(def)s & endifs incorrectly

- Bug 107779 - Access violation with some games

- Bug 107810 - The ‘va_end’ call is missed after ‘va_copy’ in ‘util_vsnprintf’ function under windows

- Bug 107832 - Gallium picking A16L16 formats when emulating INTENSITY16 conflicts with mesa

- Bug 107843 - 32bit Mesa build failes with meson.

- Bug 107879 - crash happens when link program

- Bug 107891 - [wine, regression, bisected] RAGE, Wolfenstein The New Order hangs in menu

## Changes

Andres Gomez (3):

- docs: add sha256 checksums for 18.2.0

- Revert “Revert “glsl: skip stringification in preprocessor if in unreachable branch””

- cherry-ignore: i965/tools: 32bit compilation with meson

Andrii Simiklit (4):

- apple/glx/log: added missing va_end() after va_copy()

- mesa/util: don’t use the same ‘va_list’ instance twice

- mesa/util: don’t ignore NULL returned from ‘malloc’

- mesa/util: add missing va_end() after va_copy()

Bas Nieuwenhuizen (5):

- radv: Support v3 of VK_EXT_vertex_attribute_divisor.

- radv: Set the user SGPR MSB for Vega.

- radv: Only allow 16 user SGPRs for compute on GFX9+.

- radv: Use build ID if available for cache UUID.

- radv: Fix driver UUID SHA1 init.

Christopher Egert (1):

- radeon: fix ColorMask

Dave Airlie (1):

- virgl: don’t send a shader create with no data. (v2)

Dylan Baker (1):

- meson: Print a message about why a libdrm version was selected

Eric Anholt (2):

- v3d: Fix SRC_ALPHA_SATURATE blending for RTs without alpha.

- v3d: Fix setup of the VCM cache size.

Erik Faye-Lund (2):

- winsys/virgl: avoid unintended behavior

- virgl: adjust strides when mapping temp-resources

Fritz Koenig (2):

- mesa: Additional FlipY applications

- mesa: FramebufferParameteri parameter checking

Gert Wollny (2):

- winsys/virgl: correct resource and handle allocation (v2)

- mesa/texture: Also check for LA texture when querying intensity component size

Ian Romanick (1):

- i965/fs: Don’t propagate conditional modifiers from integer compares to adds

Faith Ekstrand (11):

- anv/pipeline: Only consider double elements which actually exist

- i965: Workaround the gen9 hw astc5x5 sampler bug

- anv: Re-emit vertex buffers when the pipeline changes

- anv: Disable the vertex cache when tessellating on SKL GT4

- anv: Clamp scissors to the framebuffer boundary

- vulkan: Update the XML and headers to 1.1.84

- anv: Support v3 of VK_EXT_vertex_attribute_divisor

- anv/query: Write both dwords in emit_zero_queries

- nir: Add a small pass to rematerialize derefs per-block

- nir/loop_unroll: Re-materialize derefs in use blocks before unrolling

- nir/opt_if: Re-materialize derefs in use blocks before peeling loops

Josh Pieper (1):

- st/mesa: Validate the result of pipe_transfer_map in make_texture (v2)

Juan A. Suarez Romero (2):

- cherry-ignore: radv: fix descriptor pool allocation size

- Update version to 18.2.1

Kenneth Feng (1):

- amd: Add Picasso device id

Marek Olšák (5):

- radeonsi: fix HTILE for NPOT textures with mipmapping on SI/CI

- winsys/radeon: fix CMASK fast clear for NPOT textures with mipmapping on SI/CI

- r600: fix HTILE for NPOT textures with mipmapping

- radeonsi: fix printing a BO list into ddebug reports

- ac: revert new LLVM 7.0 behavior for fdiv

Mathias Fröhlich (1):

- tnl: Fix green gun regression in xonotic.

Mauro Rossi (3):

- android: broadcom/genxml: fix collision with intel/genxml header-gen macro

- android: broadcom/cle: add gallium include path

- android: broadcom/cle: export the broadcom top level path headers

Michel Dänzer (1):

- loader/dri3: Only wait for back buffer fences in dri3_get_buffer

Pierre Moreau (1):

- nvir: Always split 64-bit IMAD/IMUL operations

Samuel Pitoiset (7):

- radv: fix function names for VK_EXT_conditional_rendering

- radv: fix VK_EXT_conditional_rendering visibility

- radv: bump the maximum number of arguments to 64

- radv: handle loc->indirect correctly for the first descriptor

- radv: fix GPU hangs with 32-bit indirect descriptors

- radv: fix flushing indirect descriptors

- radv: fix setting global locations for indirect descriptors

Sergii Romantsov (3):

- intel: compiler option msse2 and mstackrealign

- i965/tools: 32bit compilation with meson

- mesa/meson: 32bit xmlconfig linkage

Timothy Arceri (2):

- glsl: fixer lexer for unreachable defines

- Revert “radeonsi: avoid syncing the driver thread in si_fence_finish”