# Mesa Release Notes

# The Mesa 3D Graphics Library

# Mesa 11.2.0 Release Notes / 4 April 2016

Mesa 11.2.0 is a new development release. People who are concerned with stability and reliability should stick with a previous release or wait for Mesa 11.2.1.

Mesa 11.2.0 implements the OpenGL 4.1 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 4.1. OpenGL 4.1 is only available if requested at context creation because compatibility contexts are not supported.

## SHA256 checksums

    dea3d8143929aad5c24ef0993ddb05807b30c284b488fc62903adfcc1c127887  mesa-11.2.0.tar.gz
    1c1fed2674abf3f16ed2623e9a5694d6752c293194e18462ebc644a19cfaafb2  mesa-11.2.0.tar.xz

## New features

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

- GL_ARB_arrays_of_arrays on all gallium drivers that provide GLSL 1.30
- GL_ARB_base_instance on freedreno/a4xx
- GL_ARB_compute_shader on i965
- GL_ARB_copy_image on r600
- GL_ARB_indirect_parameters on nvc0
- GL_ARB_query_buffer_object on nvc0
- GL_ARB_shader_atomic_counters on nvc0
- GL_ARB_shader_draw_parameters on i965, nvc0
- GL_ARB_shader_storage_buffer_object on nvc0
- GL_ARB_tessellation_shader on i965 and r600 (evergreen/cayman only)
- GL_ARB_texture_buffer_object_rgb32 on freedreno/a4xx
- GL_ARB_texture_buffer_range on freedreno/a4xx
- GL_ARB_texture_query_lod on freedreno/a4xx
- GL_ARB_texture_rgb10_a2ui on freedreno/a4xx
- GL_ARB_texture_view on freedreno/a4xx
- GL_ARB_vertex_type_10f_11f_11f_rev on freedreno/a4xx
- GL_KHR_texture_compression_astc_ldr on freedreno/a4xx
- GL_AMD_performance_monitor on radeonsi (CIK+ only)
- GL_ATI_meminfo on r600, radeonsi
- GL_NVX_gpu_memory_info on r600, radeonsi
- New OSMesaCreateContextAttribs() function (for creating core profile contexts)

## Bug fixes

- Bug 27512 - Illegal instruction _mesa_x86_64_transform_points4_general
- Bug 75165 - compute.c:464:49: error: function definition is not allowed here
- Bug 79783 - Distorted output in obs-studio where other vendors "work"
- Bug 89330 - piglit glsl-1.50 invariant-qualifier-in-out-block-01 regression
- Bug 89969 - nouveau: add support for chunk decoding in order to support vaapi (st/va)
- Bug 90348 - Spilling failure of b96 merged value
- Bug 91526 - World of Warcraft (on Wine) has UI corruption with nouveau
- Bug 91596 - EGL_KHR_gl_colorspace (v2) causes problem with Android-x86 GUI
- Bug 91806 - configure does not test whether assembler supports sse4.1
- Bug 91927 - [SKL] [regression] piglit compressed textures tests fail with kernel upgrade
- Bug 92193 - [SKL] ES2-CTS.gtf.GL2ExtensionTests.compressed_astc_texture.compressed_astc_texture fails
- Bug 92229 - [APITRACE] SOMA have serious graphical errors
- Bug 92233 - Unigine Heaven 4.0 silhuette run
- Bug 92363 - [BSW/BDW] ogles1conform Gets test fails
- Bug 92438 - Segfault in pushbuf_kref when running the android emulator (qemu) on nv50
- Bug 92589 - [BDW BSW SKL CTS] ES31-CTS.texture_gather.* GPU_HANG
- Bug 92595 - [HSW,BDW,SKL][GLES 3.1 CTS] Big difference in the results for the ES31-CTS.shader_bitfield_operation.* tests
- Bug 92609 - [BDW, BSW] piglit sampling-2d-array-as-2d-layer fails
- Bug 92687 - Add support for ARB_internalformat_query2
- Bug 92706 - glBlitFramebuffer refuses to blit RGBA to RGB with MSAA
- Bug 92709 - "LLVM triggered Diagnostic Handler: unsupported call to function ldexpf in main" when starting race in stuntrally
- Bug 92743 - Centroid shouldn't have to match between the FS and the VS
- Bug 92759 - [Regression, bisected] Visuals without alpha bits are not sRGB-capable
- Bug 92849 - [IVB HSW BDW] piglit image load/store load-from-cleared-image.shader_test fails
- Bug 92909 - Offset/alignment issue with layout std140 and vec3
- Bug 93004 - Guild Wars 2 crash on nouveau DX11 cards
- Bug 93048 - [CTS regression] mesa af2723 breaks GL Conformance for debug extension
- Bug 93063 - drm_helper.h:227:1: error: static declaration of ‘pipe_virgl_create_screen’ follows non-static declaration
- Bug 93091 - [opencl] segfault when running any opencl programs (like clinfo)
- Bug 93092 - lp_test_format regression
- Bug 93126 - wrongly claim supporting GL_EXT_texture_rg
- Bug 93180 - [regression] arb_separate_shader_objects.active sampler conflict fails
- Bug 93189 - "./util/u_inlines.h", line 83: operands have incompatible types: void ":" int
- Bug 93215 - [Regression bisected] Ogles1conform Automatic mipmap generation test is fail
- Bug 93235 - [regression] dispatch sanity broken by GetPointerv
- Bug 93257 - [SKL, bisected] ASTC dEQP tests segfault
- Bug 93264 - Tonga VM Faults since llvm ScheduleDAGInstrs: Rework schedule graph builder.
- Bug 93266 - gl_arb_shading_language_420pack does not allow binding of image variables
- Bug 93300 - Two Worlds 2 renders water incorrectly
- Bug 93312 - [SKL][GLES 3.1 CTS] ES31-CTS.layout_binding* GPU_HANG
- Bug 93320 - [HSW,BDW,SKL][GLES 3.1 CTS] ES31-CTS.vertex_attrib_binding.advanced-bindingUpdate fail
- Bug 93322 - [HSW,BDW,SKL][GLES 3.1 CTS] ES31-CTS.compute_shader.resource-ubo fail
- Bug 93323 - [HSW,BDW,SKL][GLES 3.1 CTS]ES31-CTS.shader_image_load_store.basic-allTargets-store-fs fail
- Bug 93325 - [HSW,BDW,SKL]ES31-CTS.explicit_uniform_location.uniform-loc-* 2 tests fail
- Bug 93339 - glLinkProgram() should fail when a varying is never written to in a previous stage
- Bug 93348 - [HSW,BDW,SKL][GLES 3.1 CTS] ES31-CTS.compute_shader.* segfault
- Bug 93358 - [HSW] Unreal Elemental demo - assertion error in copy_image_with_blitter
- Bug 93387 - inverse() shouldn’t be exposed in GLSL 1.20 and 1.30
- Bug 93388 - [i965, regression, bisection] MESA_FORMAT_B8G8R8X8_SRGB changes break kwin
- Bug 93407 - [SKL][GLES 3.1 CTS]ES31-CTS.compute_shader.resources-texture fail
- Bug 93410 - [BDW,SKL][GLES 3.1 CTS]ES31-CTS.shader_image_load_store.negative-linkErrors fail
- Bug 93418 - Geometry Shaders output wrong vertices on Sandy Bridge
- Bug 93426 - [SKL,BDW,BSW,BXT] CTS regression: es2-cts.gtf.gl2fixedtests.buffer_objects.buffer_object,s
- Bug 93524 - Clover doesn't build
- Bug 93526 - GfxBench 4 tessellation demos misrender
- Bug 93532 - [HSW,BDW,SKL][GLES 3.1 CTS] ES31-CTS.compute_shader.*. Regression, bisected.
- Bug 93540 - [BISECTED, HSW] Rendering issue in Heaven (and other benchmarks)
- Bug 93560 - opt_combine_constants failing fabsf(reg->f) == table.imm[i].val assertion
- Bug 93599 - Strange green flashes with "Metro: Last Light Redux" + "Metro 2033 Redux" with Intel Mesa driver
- Bug 93648 - Random lines being rendered when playing Dolphin (geometry shaders related, w/ apitrace)
- Bug 93650 - GL_ARB_separate_shader_objects is buggy (PCSX2)
- Bug 93667 - Crash in eglCreateImageKHR with huge texture size
- Bug 93696 - [HSW,BDW;SKL][GLES 3.1 CTS]ES31-CTS.explicit_uniform_location.uniform-loc-mix-with-implicit-max-* fail
- Bug 93700 - [SKL, regression] deqp-gles2.functional.texture.completeness
- Bug 93717 - Meta mipmap generation can corrupt texture state
- Bug 93722 - Segfault when compiling shader with a subroutine that takes a parameter
- Bug 93725 - [HSW, regression, bisected] ES31-CTS.texture_gather.*depth*
- Bug 93731 - glUniformSubroutinesuiv segfaults when subroutine uniform is bound to a specific location
- Bug 93761 - A conditional discard in a fragment shader causes no depth writing at all
- Bug 93790 - [HSW] Use after free with compute programs
- Bug 93792 - [HSW] intel_mipmap_tree.c:1325: intel_miptree_copy_slice: Assertion `src_mt->format == dst_mt->format
- Bug 93813 - Incorrect viewport range when GL_CLIP_ORIGIN is GL_UPPER_LEFT
- Bug 93840 - [i965] Alien: Isolation fails with GL_ARB_compute_shader enabled
- Bug 93862 - [Bisected] "drm/amdgpu: fix amdgpu_bo_pin_restricted VRAM placing v2" is bad
- Bug 93878 - [llvmpipe][softpipe] piglit arb_gpu_shader_fp64-double-gettransformfeedbackvarying regression
- Bug 93957 - [HSW] Mishandling of sample count when using an attachment-less framebuffer (assertion error)
- Bug 93961 - virgl build failure after 2016-02-01 changes - no previous prototype for 'virgl_drm_winsys_create'
- Bug 93962 - [HSW, regression, bisected, CTS] ES2-CTS.gtf.GL2FixedTests.scissor.scissor - segfault/asserts
- Bug 93989 - build: flex-2.5.39 seems to be failing for glsl_lexer.ll
- Bug 94016 - make check MesaExtensionsTest.AlphabeticallySorted regression
- Bug 94019 - [bisected] 3D acceleration broken with gallium/radeon: just get num_tile_pipes from the winsys
- Bug 94050 - test_vec4_register_coalesce regression
- Bug 94073 - Miscompilation of abs_vec3_vert_xvary_ref.vert in WebGL conformance
- Bug 94081 - [HSW] compute shader shared var + atomic op = fail
- Bug 94088 - [llvmpipe] SIGFPE pthread_barrier_destroy.c:40
- Bug 94091 - Tonga unreal elemental segfault since radeonsi: put image, fmask, and sampler descriptors into one array
- Bug 94100 - [HSW] compute indirect dispatch with 0 work groups causes gpu hang
- Bug 94134 - [regression] piglit.spec.arb_texture_view.sampling-2d-array-as-2d-layer assertion
- Bug 94139 - [regression, HSW, IVB] piglit.spec.arb_compute_shader.minmax
- Bug 94150 - UE4 Suntemple rendering errors
- Bug 94186 - Crash when launching glxinfo and World of Warcraft with RV790
- Bug 94188 - define (or undef) defined behaves stupidly
- Bug 94193 - [llvmpipe] Line antialiasing looks different when GL_LINE_STIPPLE is enabled with pattern 0xffff
- Bug 94199 - Shader abort/crash
- Bug 94253 - [llvmpipe] piglit gl-1.0-swapbuffers-behavior regression
- Bug 94254 - [llvmpipe] [softpipe] piglit read-front regression
- Bug 94257 - [softpipe] piglit glx-copy-sub-buffer regression
- Bug 94274 - [swrast] piglit arb_occlusion_query2-render regression
- Bug 94284 - [radeonsi] outlast segfault on start
- Bug 94388 - r600_blit.c:281: r600_decompress_depth_textures: Assertion `tex->is_depth && !tex->is_flushing_texture' failed.
- Bug 94412 - Trine 3 misrender
- Bug 94481 - softpipe - access violation in img_filter_2d_nearest
- Bug 94524 - Wrong gl_TessLevelOuter interpretation for isolines
- Bug 94595 - [Mesa AMD&swrast] Texture views attached as framebuffers return their viewed tecture's color encoding and render incorrectly

## Changes

Microsoft Visual Studio 2013 or later is now required for building on Windows. Previously, Visual Studio 2008 and later were supported.