Featured content is also available via:

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.

This Week's Activity

st: Sweep NIR after linking phase to free held memory
Mesa - Danylo Piliaiev: After optimization passes and many trasfromations most of memory NIR holds is a garbage which was being freed only after shader deletion.

virgl: Allow RGB32* textures only as buffer objects
Mesa - Gert Wollny: When requesting a texture of the internal format GL_RGB32F Gallium will try to allocate a renderable texture and returns RGBA32F or RGBX32F, but when one requests GL_RGB32I or GL_RGB32UI the according 3-component texture will be returned.

intel: tools: dump: make dump tool reliable under gdb
Mesa - Lionel Landwerlin: The problem with passing the configuration of the dump lib through a file descriptor is that it can be read only once.

nv50/ir: handle SHLADD in IndirectPropagation
Mesa - Rhys Perry: An alternative solution to the problem fixed in 0bd83d0 ("nv50/ir: move LateAlgebraicOpt to the very end").

ac/nir: add a workaround for bitfield_extract when count is 0
Mesa - Samuel Pitoiset: LLVM 7 returns incorrect results when count is 0, something has been broken since LLVM 6.

intel/isl/gen4: Make depth/stencil buffers Y-Tiled
Mesa - Nanley Chery: Rendering to a linear depth buffer on gen4 is causing a GPU hang in the CI system.

intel: tools: dump: remove command execution feature
Mesa - Lionel Landwerlin: In commit 86cb05a6d35a52 ("intel: aubinator: remove standard input processing option") we removed the ability to process aub as an input stream because we're now rely on mmapping the aub file to back the buffers aubinator is parsing.

radv: Enable binning and dfsm by default on Raven
Mesa - Bas Nieuwenhuizen: Seems like it increases performance by 2-3% for some demos and games.

v3d: Fix tiling modifier support to use the new UIF define
Mesa - Eric Anholt: You can't use T tiled buffers on V3D 3.

intel/tools: Add an error state to aub translator
Mesa - Jason Ekstrand

This Month's Activity

intel/blorp: Handle 3-component formats in clears
Mesa - Jason Ekstrand: This fixes a nasty hang in Batman: Arkham City which apparently calls

r600: Add spill output to group only if register or target index changes
Mesa - Gert Wollny: The current spill code checks in each instruction of an instruction group whether spilling is needed and if so, it adds spilling for each component as a seperate instruction and it allocates a new temporary for each component and since it takes the write mask from the TGSI representation, all components might be written each time and as a result already written components might be overwritten with garbage like:

configure.ac: bump to version 4.0.91 for the alpha release
Weston - Derek Foreman

i965: Make blt_pitch public
Mesa - Nanley Chery: We'd like to reuse this helper.

radeonsi: add support for Vega20
Mesa - Marek Olšák

u_blitter: Add an option to draw the triangles using an index buffer
Mesa - Eric Anholt: For V3D, the HW will interpolate slightly differently along the shared edge of the trifan.

Add RandR leases support
xf86-video-ati - Keith Packard

modesetting: Record non-desktop kernel property at PreInit time
xf86-video-ati - Keith Packard: Save any value of the kernel non-desktop property in the xf86Output structure to avoid non-desktop outputs in the default configuration.

radv: add support for VK_KHR_create_renderpass2
Mesa - Samuel Pitoiset: VkCreateRenderPass2KHR() is quite similar to VkCreateRenderPass() but refactoring the code is a bit painful.

st/mesa: Only enable depth writes if the function isn't EQUAL.
Mesa - Kenneth Graunke: If the depth function is EQUAL, then we'll only write the depth value when it already matches what's in the buffer, which is pointless.

Recent Releases

configure.ac: bump to version 4.0.91 for the alpha release
Weston - Derek Foreman

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

configure.ac: bump to version 1.15.0 for the official release
Wayland - Derek Foreman

mesa: simplify MESA_GL_VERSION_OVERRIDE behavior of API override
Mesa - 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
Mesa - Andres Gomez: Fixes: 03fd6704db9 ("mesa: Add support for a new override string MESA_GLES_VERSION_OVERRIDE")

configure.ac: bump to version 3.0.93 for the RC1 release
Weston - Derek Foreman

configure.ac: bump to version 1.14.93 for the RC1 release
Wayland - Derek Foreman

dri3: Fix typo in version check
Mesa - 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.

configure.ac: bump to version 3.0.92 for the beta release
Weston - Derek Foreman

configure.ac: bump to version 1.14.92 for the beta release
Wayland - Derek Foreman

Popular Activity In The Past Month

nir: Remove old-school deref chain support
Mesa - Jason Ekstrand

compositor-drm: Add aspect-ratio parsing support
Weston - Ankit Nautiyal

anv: Add support for the on-disk shader cache
Mesa - Jason Ekstrand

Add RandR leases support
xf86-video-ati - Keith Packard

weston: support clone mode on DRM-frontend
Weston - Pekka Paalanen

util: rb-tree: A simple, invasive, red-black tree
Mesa - Jason Ekstrand

radv: add support for VK_KHR_create_renderpass2
Mesa - Samuel Pitoiset

nir: Remove deref chain support from analyze_loops
Mesa - Jason Ekstrand

meson: Add configuration of listening on tcp, unix and local
X.Org Server - Laurent Carlier

anv: Add support for VK_KHR_create_renderpass2
Mesa - Jason Ekstrand

r600: Add R4G4B4A4 and A1B5G5R5 to supported vertex formats
Mesa - Gert Wollny

compositor-fbdev: detect the first fb device in the seat
Weston - nerdopolis

util: u_queue: fix android build error
Mesa - Lionel Landwerlin

intel: tools: import intel_aubdump
Mesa - Lionel Landwerlin

mesa: add outstanding ARB_vertex_attrib_64bit dlist support
Mesa - Timothy Arceri

mesa: add ARB_viewport_array display list support
Mesa - Timothy Arceri

Legal Disclaimer & Disclosure | Contact Us
Copyright © 2010 - 2018 by Phoronix Media. All rights reserved.
All trademarks and copyrights used are properties of their respective owners.
Powered by the Phoronix Content Management System (PHXCMS-8).