kc3-lang/angle/src/libANGLE/renderer/null/SurfaceNULL.cpp

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• Hash : bf7b95db
  Author :
  Date : 2018-05-01T16:48:21
  

  Create a default framebuffer per surface/context pair on MakeCurrent.
  
  Sharing a gl::Framebuffer object between multiple contexts causes problems if
  contexts are not virtualized because the native framebuffer objects are not
  shared between these contexts.  The FramebufferImpl created should be the glue
  that binds a specific context to a specific surface.
  
  Update the SurfaceImpl implementations to re-create the framebuffer
  object before passing it to FramebufferGL.  No backing resources will be
  re-created.
  
  BUG=angleproject:2464
  
  Change-Id: Id0b13a221c22b71517b25cb5b1ef2392ad2ecdd6
  Reviewed-on: https://chromium-review.googlesource.com/1039985
  Commit-Queue: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Frank Henigman <fjhenigman@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/renderer/null/SurfaceNULL.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.
  //
  // SurfaceNULL.cpp:
  //    Implements the class methods for SurfaceNULL.
  //
  
  #include "libANGLE/renderer/null/SurfaceNULL.h"
  
  #include "common/debug.h"
  
  #include "libANGLE/renderer/null/FramebufferNULL.h"
  
  namespace rx
  {
  
  SurfaceNULL::SurfaceNULL(const egl::SurfaceState &surfaceState) : SurfaceImpl(surfaceState)
  {
  }
  
  SurfaceNULL::~SurfaceNULL()
  {
  }
  
  egl::Error SurfaceNULL::initialize(const egl::Display *display)
  {
      return egl::NoError();
  }
  
  FramebufferImpl *SurfaceNULL::createDefaultFramebuffer(const gl::Context *context,
                                                         const gl::FramebufferState &state)
  {
      return new FramebufferNULL(state);
  }
  
  egl::Error SurfaceNULL::swap(const gl::Context *context)
  {
      return egl::NoError();
  }
  
  egl::Error SurfaceNULL::postSubBuffer(const gl::Context *context,
                                        EGLint x,
                                        EGLint y,
                                        EGLint width,
                                        EGLint height)
  {
      return egl::NoError();
  }
  
  egl::Error SurfaceNULL::querySurfacePointerANGLE(EGLint attribute, void **value)
  {
      UNREACHABLE();
      return egl::NoError();
  }
  
  egl::Error SurfaceNULL::bindTexImage(const gl::Context *context,
                                       gl::Texture *texture,
                                       EGLint buffer)
  {
      return egl::NoError();
  }
  
  egl::Error SurfaceNULL::releaseTexImage(const gl::Context *context, EGLint buffer)
  {
      return egl::NoError();
  }
  
  egl::Error SurfaceNULL::getSyncValues(EGLuint64KHR *ust, EGLuint64KHR *msc, EGLuint64KHR *sbc)
  {
      UNIMPLEMENTED();
      return egl::EglBadAccess();
  }
  
  void SurfaceNULL::setSwapInterval(EGLint interval)
  {
  }
  
  EGLint SurfaceNULL::getWidth() const
  {
      // TODO(geofflang): Read from an actual window?
      return 100;
  }
  
  EGLint SurfaceNULL::getHeight() const
  {
      // TODO(geofflang): Read from an actual window?
      return 100;
  }
  
  EGLint SurfaceNULL::isPostSubBufferSupported() const
  {
      return EGL_TRUE;
  }
  
  EGLint SurfaceNULL::getSwapBehavior() const
  {
      return EGL_BUFFER_PRESERVED;
  }
  
  gl::Error SurfaceNULL::initializeContents(const gl::Context *context,
                                            const gl::ImageIndex &imageIndex)
  {
      return gl::NoError();
  }
  
  }  // namespace rx
  

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