| commit | 1239ee94fbd8163e872023d2648d58a7d17e7819 | [log] [tgz] |
|---|---|---|
| author | Corentin Wallez <cwallez@chromium.org> | Thu Mar 19 14:38:02 2015 -0700 |
| committer | Corentin Wallez <cwallez@chromium.org> | Thu Apr 09 21:01:35 2015 +0000 |
| tree | dc9b7ace32b872f5de4de7f5369f3fdc4c623eed | |
| parent | 794e0009ef747b49cd98d7d84434841a7ce5b222 [diff] |
Use the AST analyses to narrow the usage of [[loop]] and [[unroll]] These attributes are now used exactly in the loops and ifs that require them, limiting the number of failed compilations due to excessive unrolling and flattening. Also output Lod0 functions only when needed. Adds unit tests for LOOP, FLATTEN and Lod0 generation. The patch was tested against the WebGL CTS 1.0.4 for which all the failures existed prior to this patch and seem to be unrelated to this change. It also works correctly on the following sites that had trouble with [[loop]] and [[unroll]]: * dev.miaumiau.cat/rayTracer "Skull Demo" * The turbulenz engine particle demo * Lots of ShaderToy samples (including "Volcanic" and "Metropolis") * Google Maps Earth mode * Lots of Chrome Experiments * Lagoa * madebyevan.com/webgl-water * SketchFab * Unit Tests BUG=angleproject:937 BUG=395048 Change-Id: I856de9025f10b79781929ec212dbffc2064a940e Reviewed-on: https://chromium-review.googlesource.com/264791 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Corentin Wallez <cwallez@chromium.org>
#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