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android/platform/external/angle/3f2e61dea6
commit
3f2e61dea6c447ed7b98483fa0ce9ccc3cb5cc3c
[log]
author
Jamie Madill <jmadill@chromium.org>
Fri Sep 05 10:38:05 2014 -0400
committer
Jamie Madill <jmadill@chromium.org>
Fri Sep 05 17:01:42 2014 +0000
tree
c628a2e3e23f0367b5baa2a8c24b3353561373ae
parent
aef95dec1cb82857fbe0dd88ad92eb3451e482f2 [diff]
Enable MRT pixel shader rewriting.

Writing to all 8 pixel outputs was causing performance problems on
Intel and AMD. Enabling Geoff's work to rewrite our pixel shaders
solves the regression.

This patch also includes a workaround to the nVidia driver bug
where it would ignore NULL RT values in OMSetRenderTargets, by
compacting the RT list to skip NULL values.

BUG=angle:705
BUG=365078

Change-Id: Ia68af6f0ccd5f10c484d6f76297a0bec694948f0
Reviewed-on: https://chromium-review.googlesource.com/214852
Tested-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
6 files changed
tree: c628a2e3e23f0367b5baa2a8c24b3353561373ae
  1. build/
  2. extensions/
  3. include/
  4. projects/
  5. samples/
  6. src/
  7. tests/
  8. util/
  9. .gitattributes
  10. .gitignore
  11. AUTHORS
  12. BUILD.gn
  13. codereview.settings
  14. CONTRIBUTORS
  15. DEPS
  16. enumerate_files.py
  17. generate_projects
  18. LICENSE
  19. README.chromium
  20. README.md
README.md

#ANGLE The goal of ANGLE is to allow Windows users to seamlessly run WebGL and other OpenGL ES content by translating OpenGL ES API calls to DirectX 9 or DirectX 11 API calls.

ANGLE is a conformant implementation of the OpenGL ES 2.0 specification that is hardware‐accelerated via Direct3D. 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. Work on ANGLE's OpenGL ES 3.0 implementation is currently in progress, but should not be considered stable.

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.

##Building For building instructions, visit the dev setup wiki.

##Contributing