kc3-lang/angle/src/libANGLE/renderer/gl/egl/ContextEGL.h

• Show log

  Commit

• Hash : 043fcf18
  Author :
  Date : 2021-01-07T13:23:57
  

  Support create ANGLE EGLContext from an external EGLContext
  
  For Android WebView, Android creates an EGLContext, EGLSurface
  and FBO, and makeCurrent on them, and then calls WebView draw
  function to draw the WebView content on the current EGLSurface or
  binded FBO. So to use ANGLE in WebView, this CL adds a way to
  create ANGLE EGLContext from an external EGLContext, and save
  and restore GL state in eglMakeCurrent().
  
  Bug: angleproject:5509
  Change-Id: I874986813117f125e23e975ea1adc51ac5b3a631
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2615239
  Commit-Queue: Peng Huang <penghuang@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
  

Download

• src/libANGLE/renderer/gl/egl/ContextEGL.h

• //
  // Copyright 2018 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // ContextEGL.h: Context class for GL on Android/ChromeOS.  Wraps a RendererEGL.
  
  #ifndef LIBANGLE_RENDERER_GL_EGL_CONTEXTEGL_H_
  #define LIBANGLE_RENDERER_GL_EGL_CONTEXTEGL_H_
  
  #include "libANGLE/renderer/gl/ContextGL.h"
  #include "libANGLE/renderer/gl/egl/RendererEGL.h"
  
  namespace rx
  {
  
  struct ExternalContextState;
  
  class ContextEGL : public ContextGL
  {
    public:
      ContextEGL(const gl::State &state,
                 gl::ErrorSet *errorSet,
                 const std::shared_ptr<RendererEGL> &renderer,
                 RobustnessVideoMemoryPurgeStatus robustnessVideoMemoryPurgeStatus);
      ~ContextEGL() override;
  
      angle::Result onMakeCurrent(const gl::Context *context) override;
      angle::Result onUnMakeCurrent(const gl::Context *context) override;
  
      EGLContext getContext() const;
  
    private:
      std::shared_ptr<RendererEGL> mRendererEGL;
      std::unique_ptr<ExternalContextState> mExtState;
  };
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_GL_EGL_RENDEREREGL_H_
  

Download