Mesa

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

www.mesa3d.org

Today's Activity

mesa/util: add allow_glsl_relaxed_es driconfig override
Timothy Arceri: This relaxes a number of ES shader restrictions allowing shaders to follow more desktop GLSL like rules.

Yesterday's Activity

mesa: add ff fragment shader support for geom and tess shaders
Timothy Arceri: This is required for compatibility profile support.

swr/rast: Clang-Format most rasterizer source code
Alok Hota

radv: Use less conservative approximation for context rolls
Bas Nieuwenhuizen: Drops the number of time we set the scissor by 4x for F1 2017, which results in a consistent performance improvement of about 4%.

Other Activity This Week

mesa: Unconditionally enable floating-point textures
Timothy Arceri: ARB_texture_float references US Patent #6,650,327 [1] which has a filing date of June 16 1998.

i965/fs: Propagate conditional modifiers from not instructions
Ian Romanick: Skylake total instructions in shared programs: 14399081 -> 14399010 (<.01%) instructions in affected programs: 26961 -> 26890 (-0.26%) helped: 57 HURT: 0 helped stats (abs) min: 1 max: 6 x̄: 1.25 x̃: 1 helped stats (rel) min: 0.16% max: 0.80% x̄: 0.30% x̃: 0.18% 95% mean confidence interval for instructions value: -1.50 -0.99 95% mean confidence interval for instructions %-change: -0.35% -0.25% Instructions are helped. total cycles in shared programs: 532978307 -> 532976050 (<.01%) cycles in affected programs: 468629 -> 466372 (-0.48%) helped: 33 HURT: 20 helped stats (abs) min: 3 max: 360 x̄: 116.52 x̃: 98 helped stats (rel) min: 0.06% max: 3.63% x̄: 1.66% x̃: 1.27% HURT stats (abs) min: 2 max: 172 x̄: 79.40 x̃: 43 HURT stats (rel) min: 0.04% max: 3.02% x̄: 1.48% x̃: 0.44% 95% mean confidence interval for cycles value: -81.29 -3.88 95% mean confidence interval for cycles %-change: -1.07% 0.12% Inconclusive result (%-change mean confidence interval includes 0). All Gen6+ platforms, except Ivy Bridge, had similar results.

i965/vec4: Optimize OR with 0 into a MOV
Ian Romanick: All of the affected shaders are geometry shaders...

i965/fs: Optimize OR with 0 into a MOV
Ian Romanick: fs_visitor::set_gs_stream_control_data_bits generates some code like "control_data_bits | stream_id << ((2 * (vertex_count - 1)) % 32)" as part of EmitVertex.

nvc0: add support for programmable sample locations
Rhys Perry

st/mesa: add support for ARB_sample_locations
Rhys Perry

gallium: add support for programmable sample locations
Rhys Perry

mesa: add support for ARB_sample_locations
Rhys Perry

radv: update the ZRANGE_PRECISION value for the TC-compat bug
Samuel Pitoiset: On GFX8+, there is a bug that affects TC-compatible depth surfaces when the ZRange is not reset after LateZ kills pixels. The workaround is to always set DB_Z_INFO.ZRANGE_PRECISION to match the last fast clear value.

radeonsi/gfx9: implement the scissor bug workaround without performance drop
Marek Olšák: This might improve performance on Vega10 and Raven.

virgl: add ARB_tessellation_shader support. (v2)
Dave Airlie: This should add all the pieces to enable tess shaders on virgl. v2: fixup transform to handle tess and strip out precise.

meson: Make use of optional modules
Dylan Baker: meson 0.43 gained support for optional modules, which clover wold like to use.

meson: Add support for ppc assembly/optimizations
Dylan Baker: v2: - Use -mpower8-vector in compiler test for altivec- rename altivec option to power8- reword power8 option description to be more clear, originally I had made it a boolean, but replaced it with an auto option.

meson: Add support for SPARC assembly
Dylan Baker: This was blindly copied from autotools and tested by a helpful gentoo user.

Mesa Release Tags

autotools, meson: bump up required VA version
Juan A. Suarez Romero: Due using a new VP9 config we use, required VA API 0.39

mesa: simplify MESA_GL_VERSION_OVERRIDE behavior of API override
Marek Olšák: v2: - Provide a correct explanation on the envvars documentation (Ian). - Provide a more correct explanation on the function comments (Andres). v3: - Homogenize documentation and inline comments (Emil). - Correct a typo (Emil). Fixes: 2599b92eb97 ("mesa: allow forcing >=3.1 compatibility contexts with MESA_GL_VERSION_OVERRIDE") Cc: Jordan Justen Cc: Ian Romanick Cc: Eric Engestrom Cc: Emil Velikov

mesa: adds some comments regarding MESA_GLES_VERSION_OVERRIDE usage
Andres Gomez: Fixes: 03fd6704db9 ("mesa: Add support for a new override string MESA_GLES_VERSION_OVERRIDE")

dri3: Fix typo in version check
Daniel Stone: The have-new-DRI3 codepaths would never actually properly trigger, since there was a typo in configure.ac which broke the version check.

freedreno: bump required libdrm version
Christian Gmeiner: Fixes: 26a9321d0a "freedreno: add global_bindings state"

meson: Add script to use VERSION file for getting version
Dylan Baker: Meson has up until this point set it's version in the root meson.build script, while the other build systems read the VERSION file.

mesa: don't use %s for PACKAGE_VERSION macro
Emil Velikov: The macro itself is a well defined string, which cannot cause issues with printf or other printf-like functions. All other places through Mesa already use it directly, so let's update the final two instances.

anv: Add MAX_API_VERSION to anv_extensions.py
Jason Ekstrand: The VkVersion class is probably overkill but it makes it really easy to compare versions in a way that's safe without the caller having to think about patch vs.

docs: add 17.2.0-devel release notes template, bump version
Emil Velikov: ### diff --git a/VERSION b/VERSION index dc99675..250d02e 100644 --- a/VERSION +++ b/VERSION @@ -1 +1 @@ -17.1.0-devel +17.2.0-devel diff --git a/docs/relnotes/17.2.0.html b/docs/relnotes/17.2.0.html new file mode 100644 index 0000000..5d9d7db --- /dev/null +++ b/docs/relnotes/17.2.0.html @@ -0,0 +1,64 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "

util: import sha1 implementation from OpenBSD
Emil Velikov: At the moment we support 5+ different implementations each with varying amount of bugs - from thread safely problems [1], to outright broken implementation(s) [2] In order to accommodate these we have 150+ lines of configure script and extra two configure toggles.

Most Popular In The Past Month

anv: Add vma_heap allocators in anv_device
Scott D Phillips: These will be used to assign virtual addresses to soft pinned buffers in a later patch. Two allocators are added for separate 'low' and 'high' virtual memory areas.

meson: Add support for SPARC assembly
Dylan Baker: This was blindly copied from autotools and tested by a helpful gentoo user.

i965: Emit VF cache invalidates for 48-bit addressing bugs with softpin
Kenneth Graunke: We'd like to start using soft-pin to assign BO addresses up front, and never move them again.

mesa: stop hiding query parameters from OpenGL compat
Timothy Arceri: Just let the extension detection do its job as we will be adding compat profile support in future, also we want these to work with compat profile version overrides.

radv: add support for 32-bit pointers in user data SGPRs
Samuel Pitoiset: We still use 64-bit GPU pointers for all ring buffers because llvm.amdgcn.implicit.buffer.ptr doesn't seem to support 32-bit GPU pointers for now.

i965: Delete the blitter path for CopyTexSubImage
Jason Ekstrand: The blorp path (called first) can do anything the blitter path can do so it's just dead code.

mesa: add display list support for glPatchParameter{i,fv}()
Timothy Arceri: This is required for tessellation shader Compat profile support.

virgl: add ARB_tessellation_shader support. (v2)
Dave Airlie: This should add all the pieces to enable tess shaders on virgl. v2: fixup transform to handle tess and strip out precise.

i965: Remove support for the BLT ring
Jason Ekstrand: We still support the blitter on gen4-5 but it's on the same ring as 3D.

radv: Fix SRGB compute copies
Bas Nieuwenhuizen: SRGB stores are broken.

Mesa

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Mesa Release Tags

Most Popular In The Past Month