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Graphics

The Graphics channel is devoted to topics concerning Linux/BSD open-source graphics (GPU) hardware drivers, graphics rendering APIs, display servers, and related graphics/display projects.

Beignet

Beignet is an open-source OpenCL implementation for Intel graphics cores on Linux.

Cairo

Cairo is a vector graphics drawing API that offers multiple hardware and software-accelerated back-ends. Cairo is used by a variety of projects from X.Org to Mozilla and WebKit.

GLVND

The libglvnd project by NVIDIA is an attempt to create an OpenGL venture-neutral dispatch library for Linux systems. Advertised as the new Linux OpenGL ABI, GLVND is designed to make it easier for multiple GPU drivers to co-exist on the same system.

Mesa 3D Graphics Library

This sub-channel is devoted to everything Mesa, including Gallium3D drivers.

Pixman

Pixman is a pixel manipulation and rendering library.

POCL

POCL is the Portable Computing Language and most notably provides an open-source OpenCL library implementation.

Video Acceleration

Projects concerning video acceleration and video playback on graphics adapters are found within this sub-channel.

Wayland

Wayland and its related components are tracked here.

X.Org

The X.Org Server projects and other X.Org projects are tracked via this sub-channel.

Today's Activity

radv: Use structured intrinsics instead of indexing workaround for GFX9.
Mesa - Bas Nieuwenhuizen: These force the index to be used in the instruction so we don't need the workaround.

nir: Make nir_lower_clip_vs optionally work with variables
Mesa - Kenneth Graunke: The way nir_lower_clip_vs() works with store_output intrinsics makes a ton of assumptions about the driver_location field. In i965 and iris, I'd rather do this lowering early and work with variables.

radv: implement fast HTILE clears for depth or stencil only on GFX9
Mesa - Samuel Pitoiset: This allows to fast clear the depth part (or the stencil part) of a depth+stencil surface when HTILE is enabled.

i965: Add support for and expose EXT_texture_sRGB_R8
Mesa - Gert Wollny: Emulate MESA_FORMAT_R_SRGB8 by using L8_UNORM_SRGB.

Yesterday's Activity

virgl: Clean up fences commit
Mesa - Robert Foss: Remove a dead variable, a int->bool conversion and some whitespace changes.

This Week's Activity

loader: Factor out the common driver opening logic from each loader
Mesa - Eric Anholt: I copied the code from egl_dri2.c, but the functionality was equivalent between all the loaders other than their particular environment variables. v2: Drop the logging function equivalent to loader_default_logger() (requested by Eric, Emil).

radv: enable primitive binning by default
Mesa - Samuel Pitoiset: After doing a bunch of benchmarks, primitive binning helps some games like The Talos Principle (+5%) or Serious Sam 2017 (+3%).

virgl: native fence fd support
Mesa - Robert Foss: Following the support for fences on the virtio driver add support for native fence on virgl.

vc4: Make sure we make ro scanout resources for create_with_modifiers
Mesa - Eric Anholt: The DRI3 create_with_modifiers paths don't set tmpl.bind to SCANOUT or SHARED, with the theory that given that you've got modifiers, that's all you need.

nir: add const_index parameters to system value builder function
Mesa - Karol Herbst

sna: Added AYUV format support for textured and sprite video adapters
xf86-video-intel - Stanislav Lisovskiy: v2: Renamed DRM_FORMAT_XYUV to DRM_FORMAT_XYUV8888.

anv/lower_ycbcr: make sure to set 0s on all components
Mesa - Lionel Landwerlin: To play around with debugging, we might want to disable one or the other component.

mesa: Reference count shaders that are used by transform feedback objects
Mesa - Gert Wollny: Transform feedback objects may hold a pointer to a shader program, and at least in Gallium, this must be a valid pointer until ctx->Driver.EndTransformFeedback in glEndTransformFeedback has been called- which is conform with the spec that any program that is part of a current rendering state should only be flagged for deletion by glDeleteProgram.

util/ralloc: Make sizeof(linear_header) a multiple of 8
Mesa - Matt Turner: Prior to this patch sizeof(linear_header) was 20 bytes in a non-debug build on 32-bit platforms.

nir: add support for removing redundant stores to copy prop var
Mesa - Timothy Arceri: For example the following type of thing is seen in TCS from a number of Vulkan and DXVK games: vec1 32 ssa_557 = deref_var &oPatch (shader_out float) vec1 32 ssa_558 = intrinsic load_deref (ssa_557) () vec1 32 ssa_559 = deref_var &oPatch@42 (shader_out float) vec1 32 ssa_560 = intrinsic load_deref (ssa_559) () vec1 32 ssa_561 = deref_var &oPatch@43 (shader_out float) vec1 32 ssa_562 = intrinsic load_deref (ssa_561) () intrinsic store_deref (ssa_557, ssa_558) (1) /* wrmask=x */ intrinsic store_deref (ssa_559, ssa_560) (1) /* wrmask=x */ intrinsic store_deref (ssa_561, ssa_562) (1) /* wrmask=x */ No shader-db changes on i965 (SKL). vkpipeline-db results RADV (VEGA): Totals from affected shaders: SGPRS: 7832 -> 7728 (-1.33 %) VGPRS: 6476 -> 6740 (4.08 %) Spilled SGPRs: 0 -> 0 (0.00 %) Spilled VGPRs: 0 -> 0 (0.00 %) Private memory VGPRs: 0 -> 0 (0.00 %) Scratch size: 0 -> 0 (0.00 %) dwords per thread Code Size: 469572 -> 456596 (-2.76 %) bytes LDS: 0 -> 0 (0.00 %) blocks Max Waves: 989 -> 960 (-2.93 %) Wait states: 0 -> 0 (0.00 %) The Max Waves and VGPRS changes here are misleading.

This Month's Activity

intel/fs,vec4: Clean up a repeated pattern with SSBOs
Mesa - Jason Ekstrand: Everywhere we handle SSBO intrinsics, we have exactly the same pattern for computing the index so we may as well make a helper for it.

intel/dump_gpu: add platform option
Mesa - Lionel Landwerlin: Got tired of remembering the PCI ids.

gm107/ir: use scalar tex instructions where possible
Mesa - Karol Herbst: TEXS, TLD4 and TLD4S are variants of tex instructions which are more scalar, which gives RA more freedom and is less likely to insert silly MOVs to satisfy quad registers.

pixman: Add support for argb/xrgb float formats, v5.
Pixman - Maarten Lankhorst: Pixman is already using the floating point formats internally, expose this capability in case someone wants to support higher bit per component formats. This is useful for igt which depends on cairo to do the rendering.

wayland/egl: Resize EGL surface on update buffer for swrast
Mesa - Olivier Fourdan: After commit a9fb331ea ("wayland/egl: update surface size on window resize"), the surface size is updated as soon as the resize is done, and `update_buffers()` would resize only if the surface size differs from the attached size.

egl: add EGL_EXT_device_base entrypoints
Mesa - Emil Velikov: eglQueryDevicesEXT (unlike the other three functions) does not depend on the display.

android: radv: add libmesa_git_sha1 static dependency
Mesa - Mauro Rossi: libmesa_git_sha1 whole static dependency is added to get git_sha1.h header and avoid following building error:

amd: Make vgpr-spilling depend on llvm version
Mesa - Jan Vesely

virgl/vtest-winsys: Use virgl version of bind flags
Mesa - Gert Wollny: The bind flags defined by mesa/gallium might not always be in sync with the ones copied to virglrenderer/gallium.

Gallium: Add format PIPE_FORMAT_R8_SRGB
Mesa - Gert Wollny: This format is needed to support EXT_texture_sRGB_R8.

Recent Releases

1.16.0 release
Cairo - Bryce Harrington: ### diff --git a/NEWS b/NEWS index 256ed696e..a50b0a001 100644 --- a/NEWS +++ b/NEWS @@ -1,3 +1,160 @@ +Release 1.16.0 (2018-10-19 Bryce Harrington <bryce@bryceharrington.org>) +======================================================================== +This new stable release incorporates a number of improvements made in +the four years since 1.14.0. + +Of particular note is a wealth of work by Adrian Johnson to enhance PDF +functionality, including restoring support for MacOSX 10.4, metadata, +hyperlinks, and more. + +Much attention also went into fonts, including new colored emoji glyph +support, variable fonts, and fixes for various font idiosyncrasies. + +Other noteworthy changes include GLESv3 support for the cairo_gl +backend, tracking of SVG units in generated SVG documents, and cleanups +for numerous test failures and related issues in the PDF and Postscript +backends. + +For a complete log of changes, please see + +

Bump to version 2.4.96
libdrm - Rob Clark

Revert "Bump to version 2.4.95"
libdrm - Emil Velikov: This reverts commit 6e50a309afb340088d7da762f4434d409216caf2.

Bump to version 2.4.95
libdrm - Emil Velikov

configure.ac: bump to version 5.0.0 for the official release
Weston - Derek Foreman

configure.ac: bump to version 1.16.0 for the official release
Wayland - Derek Foreman

configure.ac: bump to version 4.0.94 for the RC2 release
Weston - Derek Foreman

configure.ac: bump to version 1.15.94 for the RC2 release
Wayland - Derek Foreman

configure.ac: bump to version 4.0.93 for the RC1 release
Weston - Derek Foreman

configure.ac: bump version to 2.4.93
libdrm - Marek Olšák

Popular Activity In The Past Month

egl: add EGL_EXT_device_drm support
Mesa - Emil Velikov

gen: Add EXT_vertex_attrib_64bit.xml to dependency lists
Mesa - Dylan Baker

egl: add base EGL_EXT_device_base implementation
Mesa - Emil Velikov

amd: Make vgpr-spilling depend on llvm version
Mesa - Jan Vesely

meson: fix formatting and add extra_files to i965
Mesa - Dylan Baker

radv: Add support for VK_KHR_driver_properties
Mesa - Bas Nieuwenhuizen

intel: tools: Add handling for video pipe
Mesa - Toni Lönnberg

Gallium: Add format PIPE_FORMAT_R8_SRGB
Mesa - Gert Wollny

nir: Add a pass for gathering transform feedback info
Mesa - Jason Ekstrand

radv: remove duplicate brackets in version string
Mesa - Eric Engestrom

egl: add EGL_MESA_device_software support
Mesa - Emil Velikov

radv: add multiple streams support for the GS copy shader
Mesa - Samuel Pitoiset

meson: add note about intel tools build options
Mesa - Eric Engestrom

radv: add support for Raven2
Mesa - Samuel Pitoiset

egl: add EGL_EXT_device_base entrypoints
Mesa - Emil Velikov

nir: add support for removing redundant stores to copy prop var
Mesa - Timothy Arceri

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