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Mesa

Mesa is an open-source 3D graphics library that provides the commonly-used DRI and Gallium3D open-source Linux graphics drivers.

Yesterday's Activity

meson: Prefer 'iris' by default over 'i965'.
Kenneth Graunke: This changes the default driver for Intel Gen8-11 hardware to be the newer 'iris' driver rather than the older 'i965' driver.

turnip: Port krh's packing macros from freedreno to tu
Eric Anholt: This introduces some minor unpacking of the temporary fd_reg_pair structs to code that previously was packing a whole register field.

turnip: Add support for fine derivatives
Eric Anholt: This does appear to be the required instruction sequence (dsxpp_1 dst src; dsxpp_1.p dst src) as dropping either instruction fails the testsuite.

winsys/amdgpu: Keep track of retrieved KMS handles using hash tables
Michel Dänzer: The assumption being that KMS handles are only retrieved for relatively few BOs, so hash tables should be efficient both in terms of performance and memory consumption.

gallium/swr: add option for static link
Krzysztof Raszkowski: Set swr-shared to 'false' to link SWR statically into Mesa.

spirv: add support for SpvOpFragment{Mask}FetchAMD operations
Samuel Pitoiset: nir_tex_src_ms_index is re-used for the fragment index with nir_texop_fragment_fetch to avoid introducing a new texture source type.

nir: add two new texture ops for multisample fragment color/mask fetches
Samuel Pitoiset: This introduces:- nir_texop_fragment_mask_fetch (fetch a fragment mask from a compressed multisampled color surface)- nir_texop_fragment_fetch (fetch a color fragment for a particular sample at corresponding fragment mask index).

radv: add explicit external subpass dependencies to meta operations
Samuel Pitoiset: No functional changes because a subpass dependency with dstStageMask set to VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT is a no-op.

turnip: Add support for uniform texel buffers
Eric Anholt: Pretty straightforward: Port texture descriptor code from freedreno, fill in alignment limits from closed vk, and tu_cmd_buffer.c was already uploading the texture descriptor. This doesn't implement storage texel buffers (required in the compute pipeline) yet, since those will need an IBO descriptor for the store path.

Other Activity This Week

panfrost/midgard: Add 64 bits float <-> int converters
Boris Brezillon: The 64 bit converter cases were missing, add them now.

panfrost/midgard: Add f2f64 support
Boris Brezillon: So we can convert floats into doubles.

panfrost/midgard: Factorize f2f and u2u handling
Boris Brezillon: Those size conversion operations work the same way apart from f2f using an fmov op code and u2u using an imov.

egl: Fix _eglPointerIsDereferencable w/o mincore()
Alexander van der Grinten: On platforms without mincore(), _eglPointerIsDereferencable() currently just checks whether p != NULL.

turnip: Add support for non-zero (still constant) UBO buffer indices
Eric Anholt: This was actually all ready to go at this point, and just needed to increment by the value.

r300: Remove a bunch of default handling of pipe caps
Eric Anholt: u_screen will return 0 for all of these, which means that this is one less driver to see in git grep when I'm checking who exposes a cap.

r600: Remove a bunch of default handling of pipe caps
Eric Anholt: u_screen will return 0 for all of these, which means that this is one less driver to see in git grep when I'm checking who exposes a cap.

compiler: Add a note about how num_ssbos works in the program info
Eric Anholt: These numbers are always confusing, and it's particularly so for this field where it has a different meaning in different info structs.

mesa: Make atomic lowering put atomics above SSBOs
Eric Anholt: Gallium arbitrarily (it seems) put atomics below SSBOs, resulting in a bunch of extra index management, and surprising shader code when you would see your SSBOs up at index 16.

anv: Move the physical device dispatch table to anv_instance
Jason Ekstrand: We don't actually have genX versions of any physical device level commands so we don't need the trampoline versions and we don't need to have a separate table per physical device.

radeonsi/gfx10: enable GS fast launch for triangles and strips with NGG culling
Marek Olšák: Only non-indexed triangle lists and strips are supported.

radeonsi/gfx10: implement NGG culling for 4x wave32 subgroups
Marek Olšák

aco: add new addr64 bit to MUBUF instructions on GFX6-GFX7
Samuel Pitoiset: According to the different ISA docs (and to LLVM), this bit seems to only exists on GFX6-GFX7.

zink: support arrays of samplers
Erik Faye-Lund

Mesa Release Tags

Bump VERSION to 20.0.0-devel
Dylan Baker

ac: replace HAVE_LLVM with LLVM_VERSION_MAJOR for atomic-optimizations
Marek Olšák: trivial

scons: define MESA_LLVM_VERSION_STRING like the other build systems do
Eric Engestrom

lima/ppir: use ra_get_best_spill_node to select spill node
Erico Nunes: ra_get_best_spill_node is what other users of the mesa register allocator use.

radv: consider MESA_VK_VERSION_OVERRIDE when setting the api version
Eleni Maria Stea: Before setting the physical device API version, we should check if the MESA_VK_VERSION_OVERRIDE environment variable is set and take it into account.

simplify LLVM version string printing
Eric Engestrom: Figure it out once in the build system, then just use that all over the place.

freedreno: fix release tarball
Rob Clark: Fixes: b4476138d5a freedreno: move drm to common location

freedreno: more fixing release tarball
Rob Clark: Fixes: aa0fed10d35 freedreno: move ir3 to common location

vulkan/utils: s/VERSION/PACKAGE_VERSION/
Eric Engestrom: Everything else uses PACKAGE_VERSION, so let's be consistent, and

build: stop defining unused VERSION
Eric Engestrom: Scons and autotools don't define it, and as of last commit nothing uses it.

Most Popular In The Past Month

llvmpipe: add support for compute shader params
Dave Airlie

radv: Expose all sample counts for integer formats as well
Bas Nieuwenhuizen: Things work the same between float and integer.

radeonsi: remove TGSI
Marek Olšák

anv: Only enable EWA LOD algorithm when doing anisotropic filtering
Kenneth Graunke: Updated documentation renames "Anisotropic Algorithm" to "LOD Algorithm" and adds a note for Gen9+ saying "The EWA Algorithm should only be enabled for Anisotropic Filtering modes.

panfrost: Implement remaining texture wrap modes
Alyssa Rosenzweig: Somehow we have native hardware for all of these.

panfrost: Implement sRGB blend shaders
Alyssa Rosenzweig: We use the lowering in nir_format_convert.

iris: Disable ASTC 5x5 support on Gen9 for now
Kenneth Graunke: Intel Gen9 hardware has some nasty restrictions where ASTC 5x5 formats and color compression can't both live in the sampler cache at the same time.

etnaviv: Report correct number of vertex buffers
Marek Vasut: The GCnano has only 4 vertex buffers instead of 16.

gitlab-ci: Switch LAVA jobs to use shared dEQP runner
Tomeu Vizoso: Take one step towards sharing code between the LAVA and non-LAVA jobs, with the goals of reducing maintenance burden and use of computational resources.

blorp: Stop whacking Z24 depth to BGRA8
Jason Ekstrand: The shader code required to do this is int(sat(x) * UINT24_MAX) which isn't really worth all the effort to avoid.

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