kc3-lang/angle/src/libANGLE/renderer/gl/egl/gbm/SurfaceGbm.cpp

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• Hash : 79aa846e
  Author :
  Date : 2022-08-17T13:40:33
  

  Reland "Not recreate Framebuffer for eglMakeCurrent() call"
  
  This is a reland of commit bf9c815263455403e587a9d2b0fdb9fb8e964208
  
  Original change's description:
  > Not recreate Framebuffer for eglMakeCurrent() call
  >
  > Right now, in eglMakeCurrent() call, ANGLE always release the
  > default framebuffer object associated to the current context,
  > and create a new default framebuffer object for the new current
  > context. It impacts chrome performance, since chrome call
  > eglMakeCurrent() a lot. With this CL, the default framebuffer
  > will be created with gl::Context. When the surface is changed
  > by eglMakeCurrent() call, ANGLE will detach the previous surface
  > from the associated framebuffer, and attach the new surface to
  > the next current context's default framebuffer.
  >
  > Bug: chromium:1336126
  > Change-Id: Iaa747669250ae250245db383a716b4634df59ea4
  > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3827751
  > Commit-Queue: Peng Huang <penghuang@chromium.org>
  > Reviewed-by: Jamie Madill <jmadill@chromium.org>
  > Reviewed-by: Geoff Lang <geofflang@chromium.org>
  
  Bug: chromium:1336126
  Change-Id: Iade19004a4335ac7bc6ca176a3c14d34afff8c9e
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3877405
  Auto-Submit: Peng Huang <penghuang@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/renderer/gl/egl/gbm/SurfaceGbm.cpp

• //
  // Copyright 2016 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.
  //
  
  // SurfaceGbm.cpp: Gbm implementation of egl::SurfaceGL
  
  #include "libANGLE/renderer/gl/egl/gbm/SurfaceGbm.h"
  
  #include "libANGLE/renderer/gl/FramebufferGL.h"
  #include "libANGLE/renderer/gl/egl/gbm/DisplayGbm.h"
  
  namespace rx
  {
  
  SurfaceGbm::SurfaceGbm(const egl::SurfaceState &state, DisplayGbm::Buffer *buffer)
      : SurfaceGL(state), mBuffer(buffer)
  {}
  
  SurfaceGbm::~SurfaceGbm()
  {
      delete mBuffer;
  }
  
  egl::Error SurfaceGbm::initialize(const egl::Display *display)
  {
      return egl::NoError();
  }
  
  egl::Error SurfaceGbm::attachToFramebuffer(const gl::Context *context, gl::Framebuffer *framebuffer)
  {
      return mBuffer->attachToFramebuffer(context, GetImplAs<FramebufferGL>(framebuffer));
  }
  
  egl::Error SurfaceGbm::detachFromFramebuffer(const gl::Context *context,
                                               gl::Framebuffer *framebuffer)
  {
      return mBuffer->detachFromFramebuffer(context, GetImplAs<FramebufferGL>(framebuffer));
  }
  
  egl::Error SurfaceGbm::makeCurrent(const gl::Context *context)
  {
      return egl::NoError();
  }
  
  egl::Error SurfaceGbm::swap(const gl::Context *context)
  {
      mBuffer->present(context);
      return egl::NoError();
  }
  
  egl::Error SurfaceGbm::postSubBuffer(const gl::Context *context,
                                       EGLint x,
                                       EGLint y,
                                       EGLint width,
                                       EGLint height)
  {
      UNIMPLEMENTED();
      return egl::NoError();
  }
  
  egl::Error SurfaceGbm::querySurfacePointerANGLE(EGLint attribute, void **value)
  {
      UNIMPLEMENTED();
      return egl::NoError();
  }
  
  egl::Error SurfaceGbm::bindTexImage(const gl::Context *context, gl::Texture *texture, EGLint buffer)
  {
      mBuffer->bindTexImage();
      return egl::NoError();
  }
  
  egl::Error SurfaceGbm::releaseTexImage(const gl::Context *context, EGLint buffer)
  {
      return egl::NoError();
  }
  
  void SurfaceGbm::setSwapInterval(EGLint interval)
  {
      mSwapControl.targetSwapInterval = interval;
  }
  
  EGLint SurfaceGbm::getWidth() const
  {
      return mBuffer->getWidth();
  }
  
  EGLint SurfaceGbm::getHeight() const
  {
      return mBuffer->getHeight();
  }
  
  EGLint SurfaceGbm::isPostSubBufferSupported() const
  {
      UNIMPLEMENTED();
      return EGL_FALSE;
  }
  
  EGLint SurfaceGbm::getSwapBehavior() const
  {
      return EGL_BUFFER_PRESERVED;
  }
  
  }  // namespace rx
  

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