Hash :
06ca634e
Author :
Date :
2018-07-12T15:56:53
Vulkan: Refactor for draw call shader patching. This refactors a few methods to enable draw call shader patching. The shader serials in the Pipeline description are inserted right before we query the pipeline cache. This is done during a draw call. Also renames the 'QueueSerial' member of the ObjectAndSerial class to just 'Serial' to more accurately reflect it usage in ShaderAndSerial. Also changes the GlslangWrapper class to have all static methods. If we need to store state we can revert these changes at some point. Also splits the GlslangWrapper link call into two static calls. One call is called to get the linked source code. The second call compiles the linked sources into shader code. Only the second call will be necessary for draw call shader patching to implement OpenGL line rasterization in Vulkan. Bug: angleproject:2598 Change-Id: I7bad3c3eeab1fb062c15a840836db4a28f841a26 Reviewed-on: https://chromium-review.googlesource.com/1127158 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@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 | in progress | |||
| Mac OS X | in progress | ||||
| Chrome OS | complete | planned | |||
| Android | complete | in progress |
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
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