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chromium / angle / angle / 403c1682db7aebdf071f80856c3eeb458919a761
commit403c1682db7aebdf071f80856c3eeb458919a761[log] [tgz]
authorJamie Madill <jmadill@chromium.org>Thu May 18 15:11:46 2017
committerCommit Bot <commit-bot@chromium.org>Thu May 18 16:26:40 2017
tree08bb67d1bf52fddf7d74b945be0951415307f063
parent9f10b775c9b17f901d940157e43e5a74b75c2708 [diff]
D3D11: Add resource manager classes.

The resource manager tracks the allocations and deallocations of all
D3D11 resources that have device memory: Buffers and Textures (which
are either 2D or 3D). It also tracks the number of active Views (DSV,
RTV, and SRV, potentially UAV with ES 3.1).

A new smart pointer type will wrap the resource deallocation so that
the object notifies the manager when ANGLE is done with the resouce.
This allows us to track precisely how much GPU memory we think we're
using at any point, and will help prevent resource leaks for these
object types. It also makes initialization and releasing much more
trivial.

The base class for a resource uses a template template parameter so
that we can use a unique or shared pointer depending on if the object
in question needs unique or shared ownership. For some resources
(in our case, SRVs are shared between the TextureStorage11 and
RenderTarget11 classes, and Textures are shared in many places) we
need to have the ability to have shared ownership. Unique ownership is
a little bit more efficient so supporting both can be helpful.

In this patch RenderTargetView allocation is moved to use the unique
smart pointer.

BUG=angleproject:2034

Change-Id: Idb1245c24cd66733b8b5ca524c727350b2d2c745
Reviewed-on: https://chromium-review.googlesource.com/503248
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
17 files changed
tree: 08bb67d1bf52fddf7d74b945be0951415307f063
  1. doc/
  2. extensions/
  3. gni/
  4. gyp/
  5. include/
  6. infra/
  7. samples/
  8. scripts/
  9. src/
  10. third_party/
  11. util/
  12. .clang-format
  13. .gitattributes
  14. .gitignore
  15. AUTHORS
  16. BUILD.gn
  17. codereview.settings
  18. CONTRIBUTORS
  19. DEPS
  20. DEPS.chromium
  21. LICENSE
  22. README.chromium
  23. README.md
README.md

ANGLE - Almost Native Graphics Layer Engine

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.

Level of OpenGL ES support via backing renderers

Direct3D 9Direct3D 11Desktop GLGL ESVulkan
OpenGL ES 2.0completecompletecompletecompletein progress
OpenGL ES 3.0completecompletein progressnot started
OpenGL ES 3.1not startedin progressin progressnot started

Platform support via backing renderers

Direct3D 9Direct3D 11Desktop GLGL ESVulkan
Windowscompletecompletecompletecompletein progress
Linuxcompleteplanned
Mac OS Xin progress
Chrome OScompleteplanned
Androidcompleteplanned

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.

Sources

ANGLE repository is hosted by Chromium project and can be browsed online or cloned with

git clone https://chromium.googlesource.com/angle/angle

Building

View the Dev setup instructions. For generating a Windows Store version of ANGLE view the Windows Store instructions

Contributing