Hash :
7bb425c6
Author :
Date :
2017-02-03T18:10:05
Revert "D3D11: Clean up blendState code." This reverts commit 786ad3876730c72311c64cf2f297e671ced847a5. Reason for revert: Seems to have a bug with binding the BlendStates, causing a crash on Intel. https://luci-milo.appspot.com/buildbot/chromium.gpu.fyi/Win10%20Release%20%28Intel%20HD%20530%29/141 Failing WebGL 2 tests WebglConformance_conformance2_reading_read_pixels_from_fbo_test WebglConformance_deqp_functional_gles3_readpixel Also generates D3D11 runtime warnings: D3D11 ERROR: ID3D11DeviceContext::Draw: The renderTarget bound to slot 0 has a format (R8_UINT) that does not support blending. The Pixel Shader output signature indicates this output could be written, and the Blend State indicates blending is enabled for this slot. [ EXECUTION ERROR #376: DEVICE_DRAW_OM_RENDER_TARGET_DOES_NOT_SUPPORT_BLENDING] BUG=angleproject:1632 BUG=chromium:688419 Original change's description: > D3D11: Clean up blendState code. > > Masked Clear Draw Changes: > - Use universal blendstate object > - Eliminate blendState cache for masked clears > - Use rasterState and scissor rect for scissoring instead of adjusting vertex positions > - VB contains only static position data (per vertex color removed) > - Clear color(s) and depth clear values now passed in using a constant buffer > - MultiColorclear shader used for float clears to workaround alpha rounding issues > - Update shader compile script and shader source and bytecode headers > - Remove unused shaders (source and bytecode headers) > - Use com pointers where possible for D3D11 objects > > BUG=angleproject:1632 > > Change-Id: I98e38451bd453f53b772fe93ec9dcceb4196ea58 > Reviewed-on: https://chromium-review.googlesource.com/413736 > Reviewed-by: Geoff Lang <geofflang@chromium.org> > Reviewed-by: Jamie Madill <jmadill@chromium.org> > Commit-Queue: Shahmeer Esmail <shahmeer.esmail@intel.com> > Commit-Queue: Jamie Madill <jmadill@chromium.org> > TBR=geofflang@chromium.org,jmadill@chromium.org,shahmeer.esmail@intel.com NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=angleproject:1632 Change-Id: Iea537505d8cce7241edaba1f1d9f404abb1d9a10 Reviewed-on: https://chromium-review.googlesource.com/437306 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>
The goal of ANGLE is to allow users of multiple operating systems to seamlessly run WebGL and other OpenGL ES content by translating OpenGL ES API calls to one of the hardware-supported APIs available for that platform. ANGLE currently provides translation from OpenGL ES 2.0 and 3.0 to desktop OpenGL, OpenGL ES, Direct3D 9, and Direct3D 11. Support for translation from OpenGL ES to Vulkan is underway, and future plans include compute shader support (ES 3.1) and MacOS support.
| Direct3D 9 | Direct3D 11 | Desktop GL | GL ES | Vulkan | |
|---|---|---|---|---|---|
| OpenGL ES 2.0 | complete | complete | complete | complete | in progress |
| OpenGL ES 3.0 | complete | complete | in progress | not started | |
| OpenGL ES 3.1 | not started | in progress | in progress | not started |
| Direct3D 9 | Direct3D 11 | Desktop GL | GL ES | Vulkan | |
|---|---|---|---|---|---|
| Windows | complete | complete | complete | complete | in progress |
| Linux | complete | planned | |||
| Mac OS X | in progress | ||||
| Chrome OS | complete | planned | |||
| Android | complete | planned |
ANGLE v1.0.772 was certified compliant by passing the ES 2.0.3 conformance tests in October 2011. ANGLE also provides an implementation of the EGL 1.4 specification.
ANGLE is used as the default WebGL backend for both Google Chrome and Mozilla Firefox on Windows platforms. Chrome uses ANGLE for all graphics rendering on Windows, including the accelerated Canvas2D implementation and the Native Client sandbox environment.
Portions of the ANGLE shader compiler are used as a shader validator and translator by WebGL implementations across multiple platforms. It is used on Mac OS X, Linux, and in mobile variants of the browsers. Having one shader validator helps to ensure that a consistent set of GLSL ES shaders are accepted across browsers and platforms. The shader translator can be used to translate shaders to other shading languages, and to optionally apply shader modifications to work around bugs or quirks in the native graphics drivers. The translator targets Desktop GLSL, Direct3D HLSL, and even ESSL for native GLES2 platforms.
ANGLE repository is hosted by Chromium project and can be browsed online or cloned with
git clone https://chromium.googlesource.com/angle/angle
View the Dev setup instructions. For generating a Windows Store version of ANGLE view the Windows Store instructions
Join our Google group to keep up to date.
Join us on IRC in the #ANGLEproject channel on FreeNode.
File bugs in the issue tracker (preferably with an isolated test-case).
Choose an ANGLE branch to track in your own project.
Read ANGLE development documentation.
Become a code contributor.
Use ANGLE’s coding standard.
Learn how to build ANGLE for Chromium development.
Get help on debugging ANGLE.
Read about WebGL on the Khronos WebGL Wiki.
Learn about implementation details in the OpenGL Insights chapter on ANGLE and this ANGLE presentation.
Learn about the past, present, and future of the ANGLE implementation in this recent presentation.
If you use ANGLE in your own project, we’d love to hear about it!