Hash :
26cf35a8
Author :
Date :
2017-07-26T11:01:02
Revert "Fix BlitFramebuffer validation for BGRA sources and targets." This reverts commit 17d270311efcd8c72f251a67e726518278e81c26. Reason for revert: - New test fails on NVIDIA and AMD on Windows when using the backbuffer FAST_PATH. - SetUp code ASSERT_GL_NO_ERROR (line 269) but a GL error happens on all Windows and Linux Intel OpenGL. Original change's description: > Fix BlitFramebuffer validation for BGRA sources and targets. > > It is legal to blit between GL_RGBA8 and GL_BGRA8 sources and > destinations when resolving multisampled renderbuffers. Expand > BlitFramebuffer's validation to handle this case. > > Work around a bug in macOS' OpenGL driver querying the number of > samples for GL_BGRA8. > > Query GL_MAX_VERTEX_OUTPUT_COMPONENTS on the Core Profile to work > around an error generated on macOS when querying > GL_MAX_VARYING_COMPONENTS. > > Expand the BlitFramebuffer tests to cover these cases and start > running them on the OpenGL backend. > > BUG=angleproject:891 > > Change-Id: I4829585d2b6428ce0bc7509c4734d33709a0930b > Reviewed-on: https://chromium-review.googlesource.com/582268 > Commit-Queue: Geoff Lang <geofflang@chromium.org> > Reviewed-by: Kenneth Russell <kbr@chromium.org> > Reviewed-by: Geoff Lang <geofflang@chromium.org> TBR=geofflang@chromium.org,kbr@chromium.org Change-Id: I220bc482194cf7fad5e7e732a6d043ce0d504d79 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: angleproject:891 Reviewed-on: https://chromium-review.googlesource.com/586428 Reviewed-by: Corentin Wallez <cwallez@chromium.org> Commit-Queue: Corentin Wallez <cwallez@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!