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kc3-lang/angle

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  • Author : Shahbaz Youssefi
    Date : 2020-10-10 22:58:41
    Hash : 68bd685a
    Message : Reland: "4 Vulkan content defined CLs." Reland "Vulkan: Avoid content restore by detecting no-op stencil" This relands commit 243d0f899e443cd931c78aba7489382dff79edbb. Reland "Vulkan: Restore at the end of RP if write-after-invalidate" This relands commit e5d52ac3b9a00656acdd912ee8cd62dd14784075. Reland "Vulkan: Invalidate/restore depth/stencil separately." This relands commit 61fa0878964a796f6d3b3c13bc3a3849403ecdbd. Reland "Vulkan: Move content-defined tracking to ImageHelper" This relands commit 2392e6b34c0ddfbfd7b4c3cb67323ba463e11a57. Reason for revert: Caused crashes in Fuchsia x64 and on ARM. Reland fixes content defined for external images. Original CL message: Content-defined tracking was done in render targets prior to this change. This had multiple drawbacks: - When a framebuffer attachment is changed (including the first time it's set), it's unknown whether the contents of the attachment is defined. - Invalidate takes effect at the end of render pass, at which point the render target objects may be gone. Attachment ImageHelpers are however correctly tracked. This change moves content-defined tracking to the ImageHelper itself, and tracks it per subresource. ImageHelper::onWrite() now receives the subresource that is being written, and marks it as having defined content. A future optimization can make use of this change to ImageHelper::onWrite to track "dirty" subresources. This can lead to the removal of unnecessary barriers when same-kind writes are done on different subresources of the image. See http://anglebug.com/3347#c15 Bug: b/167275320 Bug: angleproject:4836 Bug: angleproject:5159 Change-Id: If5c1ae7152657fd7c94db7d55bea4fb9ddf835ba Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2464825 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>

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    Git SSH git@git.kmx.io:kc3-lang/angle.git
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    A conformant OpenGL ES implementation for Windows, Mac, Linux, iOS and Android.

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    Users thodg git_deploy kc3_lang_org thodg_l thodg_m thodg_w www_kmx_io
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  • 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, 3.0 and 3.1 to Vulkan, desktop OpenGL, OpenGL ES, Direct3D 9, and Direct3D 11. Future plans include ES 3.2, translation to Metal and MacOS, Chrome OS, and Fuchsia support.

    Level of OpenGL ES support via backing renderers

    | | Direct3D 9 | Direct3D 11 | Desktop GL | GL ES | Vulkan | Metal | |----------------|:-------------:|:----------------:|:--------------:|:-------------:|:-------------:|:-------------:| | OpenGL ES 2.0 | complete | complete | complete | complete | complete | complete | | OpenGL ES 3.0 | | complete | complete | complete | complete | in progress | | OpenGL ES 3.1 | | in progress | complete | complete | complete | | | OpenGL ES 3.2 | | | in progress | in progress | in progress | |

    Platform support via backing renderers

    | | Direct3D 9 | Direct3D 11 | Desktop GL | GL ES | Vulkan | Metal | |-------------:|:--------------:|:--------------:|:-------------:|:-----------:|:-----------:|:-----------:| | Windows | complete | complete | complete | complete | complete | | | Linux | | | complete | | complete | | | Mac OS X | | | complete | | | in progress | | iOS | | | | | | planned | | Chrome OS | | | | complete | planned | | | Android | | | | complete | complete | | | GGP (Stadia) | | | | | complete | | | Fuchsia | | | | | in progress | |

    ANGLE v1.0.772 was certified compliant by passing the OpenGL ES 2.0.3 conformance tests in October 2011.

    ANGLE has received the following certifications with the Vulkan backend:

    • OpenGL ES 2.0: ANGLE 2.1.0.d46e2fb1e341 (Nov, 2019)
    • OpenGL ES 3.0: ANGLE 2.1.0.f18ff947360d (Feb, 2020)
    • OpenGL ES 3.1: ANGLE 2.1.0.f5dace0f1e57 (Jul, 2020)

    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, Vulkan 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.

    Contributing