# The Mesa 3D Graphics Library

# Mesa 19.2.0 Release Notes / 2019.09.25

Mesa 19.2.0 is a new development release. People who are concerned with stability and reliability should stick with a previous release or wait for Mesa 19.2.1.

Mesa 19.2.0 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.

Mesa 19.2.0 implements the Vulkan 1.1 API, but the version reported by the apiVersion property of the VkPhysicalDeviceProperties struct depends on the particular driver being used.

## SHA256 checksums

        b060caa2a00f856431160ff7377d0e8f58f2aa48c16ee5a9e265ebdccb10852a  mesa-19.2.0.tar.xz

## New features

- GL_ARB_post_depth_coverage on radeonsi (Navi)
- GL_ARB_seamless_cubemap_per_texture on etnaviv (if GPU supports SEAMLESS_CUBE_MAP)
- GL_EXT_shader_image_load_store on radeonsi (with LLVM >= 10)
- GL_EXT_shader_samples_identical on iris and radeonsi (if using NIR)
- GL_EXT_texture_shadow_lod on i965, iris
- EGL_EXT_platform_device
- VK_AMD_buffer_marker on radv
- VK_EXT_index_type_uint8 on radv
- VK_EXT_post_depth_coverage on radv
- VK_EXT_queue_family_foreign on radv
- VK_EXT_sample_locations on radv
- VK_EXT_shader_demote_to_helper_invocation on Intel.
- VK_KHR_depth_stencil_resolve on radv
- VK_KHR_imageless_framebuffer on radv
- VK_KHR_shader_atomic_int64 on radv
- VK_KHR_uniform_buffer_standard_layout on radv

## Bug fixes

- Bug 103674 - u_queue.c:173:7: error: implicit declaration of function 'timespec_get' is invalid in C99
- Bug 104395 - [CTS] GTF-GL46.gtf32.GL3Tests.packed_pixels.packed_pixels tests fail on 32bit Mesa
- Bug 110765 - ANV regression: Assertion `pass->attachment_count == framebuffer->attachment_count' failed
- Bug 110814 - KWin compositor crashes on launch
- Bug 111069 - Assertion fails in nir_opt_remove_phis.c during compilation of SPIR-V shader
- Bug 111213 - VA-API nouveau SIGSEGV and asserts
- Bug 111241 - Shadertoy shader causing hang
- Bug 111248 - Navi10 Font rendering issue in Overwatch
- Bug 111271 - Crash in eglMakeCurrent
- Bug 111308 - [Regression, NIR, bisected] Black squares in Unigine Heaven via DXVK
- Bug 111401 - Vulkan overlay layer - async compute not supported, making overlay disappear in Doom
- Bug 111405 - Some infinite 'do{}while' loops lead mesa to an infinite compilation
- Bug 111411 - SPIR-V shader leads to GPU hang, sometimes making machine unstable
- Bug 111414 - [REGRESSION] [BISECTED] Segmentation fault in si_bind_blend_state after removal of the blend state NULL check
- Bug 111467 - WOLF RPG Editor + Gallium Nine Standalone: Rendering issue when using Iris driver
- Bug 111490 - [REGRESSION] [BISECTED] Shadow Tactics: Blades of the Shogun - problems rendering water
- Bug 111493 - In the game The Surge (378540) - textures disappear then appear again when I change the camera angle view
- Bug 111509 - [regression][bisected] piglit.spec.ext_image_dma_buf_import.ext_image_dma_buf_import-export fails on iris
- Bug 111522 - [bisected] Supraland no longer start
- Bug 111529 - EGL_PLATFORM=drm doesn't expose MESA_query_driver extension
- Bug 111552 - Geekbench 5.0 Vulkan compute benchmark fails on Anvil
- Bug 111566 - [REGRESSION] [BISECTED] Large CS workgroup sizes broken in combination with FP64 on Intel.
- Bug 111576 - [bisected] Performance regression in X4:Foundations in 19.2
- Bug 111676 - Tropico 6 apitrace throws error into logs
- Bug 111734 - Geometry shader with double interpolators fails in LLVM

## Changes

Adam Jackson (1):

- docs: Update bug report URLs for the gitlab migration

Alex Smith (1):

- radv: Change memory type order for GPUs without dedicated VRAM

Alyssa Rosenzweig (1):

- pan/midgard: Fix writeout combining

Andres Gomez (1):

- docs: Add the maximum implemented Vulkan API version in 19.2 rel notes

Andres Rodriguez (1):

- radv: additional query fixes

Arcady Goldmints-Orlov (1):

- anv: fix descriptor limits on gen8

Bas Nieuwenhuizen (6):

- radv: Use correct vgpr_comp_cnt for VS if both prim_id and instance_id are needed.
- radv: Emit VGT_GS_ONCHIP_CNTL for tess on GFX10.
- radv: Disable NGG for geometry shaders.
- Revert "ac/nir: Lower large indirect variables to scratch"
- tu: Set up glsl types.
- radv: Add workaround for hang in The Surge 2.

Caio Marcelo de Oliveira Filho (2):

- nir/lower_explicit_io: Handle 1 bit loads and stores
- glsl/nir: Avoid overflow when setting max_uniform_location

Connor Abbott (1):

- radv: Call nir_propagate_invariant()

Danylo Piliaiev (3):

- nir/loop_unroll: Prepare loop for unrolling in wrapper_unroll
- nir/loop_analyze: Treat do{}while(false) loops as 0 iterations
- tgsi_to_nir: Translate TGSI_INTERPOLATE_COLOR as INTERP_MODE_NONE

Dave Airlie (2):

- virgl: fix format conversion for recent gallium changes.
- gallivm: fix atomic compare-and-swap

Dave Stevenson (1):

- broadcom/v3d: Allow importing linear BOs with arbitrary offset/stride.

Dylan Baker (9):

- bump version to 19.2-rc2
- nir: Add is_not_negative helper function
- Bump version for rc3
- meson: don't generate file into subdirs
- add patches to be ignored
- Bump version for 19.2.0-rc4
- cherry-ignore: Add patches
- rehardcode from origin/master to upstream/master
- bin/get-pick-list: use --oneline=pretty instead of --oneline

Emil Velikov (1):

- Update version to 19.2.0-rc1

Eric Engestrom (14):

- ttn: fix 64-bit shift on 32-bit `1`
- egl: fix deadlock in malloc error path
- util/os_file: fix double-close()
- anv: fix format string in error message
- freedreno/drm-shim: fix mem leak
- nir: fix memleak in error path
- anv: add support for driconf
- wsi: add minImageCount override
- anv: add support for vk_x11_override_min_image_count
- amd: move adaptive sync to performance section, as it is defined in xmlpool
- radv: add support for vk_x11_override_min_image_count
- drirc: override minImageCount=2 for gfxbench
- gl: drop incorrect pkg-config file for glvnd
- meson: re-add incorrect pkg-config files with GLVND for backward compatibility

Erik Faye-Lund (2):

- gallium/auxiliary/indices: consistently apply start only to input
- util: fix SSE-version needed for double opcodes

Haihao Xiang (1):

- i965: support AYUV/XYUV for external import only

Hal Gentz (2):

- glx: Fix SEGV due to dereferencing a NULL ptr from XCB-GLX.
- gallium/osmesa: Fix the inability to set no context as current.

Iago Toral Quiroga (1):

- v3d: make sure we have enough space in the CL for the primitive counts packet

Ian Romanick (8):

- nir/algrbraic: Don't optimize open-coded bitfield reverse when lowering is enabled
- intel/compiler: Request bitfield_reverse lowering on pre-Gen7 hardware
- nir/algebraic: Mark some value range analysis-based optimizations imprecise
- nir/range-analysis: Adjust result range of exp2 to account for flush-to-zero
- nir/range-analysis: Adjust result range of multiplication to account for flush-to-zero
- nir/range-analysis: Fix incorrect fadd range result for (ne_zero, ne_zero)
- nir/range-analysis: Handle constants in nir_op_mov just like nir_op_bcsel
- nir/algebraic: Do not apply late DPH optimization in vertex processing stages

Ilia Mirkin (1):

- gallium/vl: use compute preference for all multimedia, not just blit

Jason Ekstrand (9):

- anv: Bump maxComputeWorkgroupSize
- nir: Handle complex derefs in nir_split_array_vars
- nir: Don't infinitely recurse in lower_ssa_defs_to_regs_block
- nir: Add a block_is_unreachable helper
- nir/repair_ssa: Repair dominance for unreachable blocks
- nir/repair_ssa: Insert deref casts when needed
- nir/dead_cf: Repair SSA if the pass makes progress
- intel/fs: Handle UNDEF in split_virtual_grfs
- nir/repair_ssa: Replace the unreachable check with the phi builder

Jonathan Marek (1):

- freedreno/a2xx: ir2: fix lowering of instructions after float lowering

Jose Maria Casanova Crespo (1):

- mesa: recover target_check before get_current_tex_objects

Juan A. Suarez Romero (1):

- bin/get-pick-list.sh: sha1 commits can be smaller than 8 chars

Kenneth Graunke (20):

- gallium/ddebug: Wrap resource_get_param if available
- gallium/trace: Wrap resource_get_param if available
- gallium/rbug: Wrap resource_get_param if available
- gallium/noop: Implement resource_get_param
- iris: Replace devinfo->gen with GEN_GEN
- iris: Fix broken aux.possible/sampler_usages bitmask handling
- iris: Update fast clear colors on Gen9 with direct immediate writes.
- iris: Drop copy format hacks from copy region based transfer path.
- iris: Avoid unnecessary resolves on transfer maps
- iris: Fix large timeout handling in rel2abs()
- isl: Drop UnormPathInColorPipe for buffer surfaces.
- isl: Don't set UnormPathInColorPipe for integer surfaces.
- util: Add a _mesa_i64roundevenf() helper.
- mesa: Fix _mesa_float_to_unorm() on 32-bit systems.
- iris: Fix partial fast clear checks to account for miplevel.
- iris: Report correct number of planes for planar images
- iris: Fix constant buffer sizes for non-UBOs
- gallium: Fix util_format_get_depth_only
- iris: Initialize ice->state.prim_mode to an invalid value
- intel: Increase Gen11 compute shader scratch IDs to 64.

Lepton Wu (1):

- virgl: Fix pipe_resource leaks under multi-sample.

Lionel Landwerlin (9):

- util/timespec: use unsigned 64 bit integers for nsec values
- util: fix compilation on macos
- egl: fix platform selection
- vulkan/overlay: bounce image back to present layout
- radv: store engine name
- driconfig: add a new engine name/version parameter
- vulkan: add vk_x11_strict_image_count option
- util/xmlconfig: fix regexp compile failure check
- drirc: include unreal engine version 0 to 23

Marek Olšák (23):

- radeonsi/gfx10: fix the legacy pipeline by storing as_ngg in the shader cache
- radeonsi: move some global shader cache flags to per-binary flags
- radeonsi/gfx10: fix tessellation for the legacy pipeline
- radeonsi/gfx10: fix the PRIMITIVES_GENERATED query if using legacy streamout
- radeonsi/gfx10: create the GS copy shader if using legacy streamout
- radeonsi/gfx10: add as_ngg variant for VS as ES to select Wave32/64
- radeonsi/gfx10: fix InstanceID for legacy VS+GS
- radeonsi/gfx10: don't initialize VGT_INSTANCE_STEP_RATE_0
- radeonsi/gfx10: always use the legacy pipeline for streamout
- radeonsi/gfx10: finish up Navi14, add PCI ID
- radeonsi/gfx10: add AMD_DEBUG=nongg
- winsys/amdgpu+radeon: process AMD_DEBUG in addition to R600_DEBUG
- radeonsi: add PKT3_CONTEXT_REG_RMW
- radeonsi/gfx10: remove incorrect ngg/pos_writes_edgeflag variables
- radeonsi/gfx10: set PA_CL_VS_OUT_CNTL with CONTEXT_REG_RMW to fix edge flags
- radeonsi: consolidate determining VGPR_COMP_CNT for API VS
- radeonsi: unbind blend/DSA/rasterizer state correctly in delete functions
- radeonsi: fix scratch buffer WAVESIZE setting leading to corruption
- radeonsi/gfx10: don't call gfx10_destroy_query with compute-only contexts
- radeonsi/gfx10: fix wave occupancy computations
- radeonsi: add Navi12 PCI ID
- amd: add more PCI IDs for Navi14
- ac/addrlib: fix chip identification for Vega10, Arcturus, Raven2, Renoir

Mauro Rossi (2):

- android: mesa: revert "Enable asm unconditionally"
- android: anv: libmesa_vulkan_common: add libmesa_util static dependency

Paulo Zanoni (2):

- intel/fs: grab fail_msg from v32 instead of v16 when v32->run_cs fails
- intel/fs: fix SHADER_OPCODE_CLUSTER_BROADCAST for SIMD32

Pierre-Eric Pelloux-Prayer (1):

- glsl: replace 'x + (-x)' with constant 0

Rafael Antognolli (1):

- anv: Only re-emit non-dynamic state that has changed.

Rhys Perry (1):

- radv: always emit a position export in gs copy shaders

Samuel Iglesias Gonsálvez (1):

- intel/nir: do not apply the fsin and fcos trig workarounds for consts

Samuel Pitoiset (11):

- radv: allow to enable VK_AMD_shader_ballot only on GFX8+
- radv: add a new debug option called RADV_DEBUG=noshaderballot
- radv: force enable VK_AMD_shader_ballot for Wolfenstein Youngblood
- ac: fix exclusive scans on GFX8-GFX9
- radv/gfx10: don't initialize VGT_INSTANCE_STEP_RATE_0
- radv/gfx10: do not use NGG with NAVI14
- radv: fix getting the index type size for uint8_t
- nir: do not assume that the result of fexp2(a) is always an integral
- radv: fix allocating number of user sgprs if streamout is used
- radv: fix loading 64-bit GS inputs
- radv/gfx10: fix VK_KHR_pipeline_executable_properties with NGG GS

Sergii Romantsov (2):

- intel/dri: finish proper glthread
- nir/large_constants: more careful data copying

Tapani Pälli (5):

- util: fix os_create_anonymous_file on android
- iris/android: fix build and link with libmesa_intel_perf
- egl: reset blob cache set/get functions on terminate
- iris: close screen fd on iris_destroy_screen
- egl: check for NULL value like eglGetSyncAttribKHR does

Thong Thai (1):

- Revert "radeonsi: don't emit PKT3_CONTEXT_CONTROL on amdgpu"

Timur Kristóf (1):

- st/nine: Properly initialize GLSL types for NIR shaders.

Vinson Lee (2):

- swr: Fix build with llvm-9.0 again.
- travis: Fail build if any command in if statement fails.