kc3-lang/angle/src/libANGLE/renderer/gl/SurfaceGL.cpp

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• Hash : 1a1a1427
  Author :
  Date : 2020-01-23T13:57:21
  

  Expose eglGetMscRateCHROMIUM from EGL_CHROMIUM_sync_control
  
  When ANGLE is using the GL backend on GLX, we can expose
  eglGetMscRateCHROMIUM via glXGetMscRateOML. Otherwise, this function
  should return false.
  
  Bug: chromium:1042393
  Change-Id: Id9b308c2217e07ee9860e2869be0e23b7a0c7411
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2017048
  Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  

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• src/libANGLE/renderer/gl/SurfaceGL.cpp

• //
  // Copyright 2015 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.
  //
  
  // SurfaceGL.cpp: OpenGL implementation of egl::Surface
  
  #include "libANGLE/renderer/gl/SurfaceGL.h"
  
  #include "libANGLE/Context.h"
  #include "libANGLE/Surface.h"
  #include "libANGLE/renderer/gl/BlitGL.h"
  #include "libANGLE/renderer/gl/ContextGL.h"
  #include "libANGLE/renderer/gl/FramebufferGL.h"
  #include "libANGLE/renderer/gl/RendererGL.h"
  
  namespace rx
  {
  
  SurfaceGL::SurfaceGL(const egl::SurfaceState &state) : SurfaceImpl(state) {}
  
  SurfaceGL::~SurfaceGL() {}
  
  FramebufferImpl *SurfaceGL::createDefaultFramebuffer(const gl::Context *context,
                                                       const gl::FramebufferState &data)
  {
      return new FramebufferGL(data, 0, true, false);
  }
  
  egl::Error SurfaceGL::getSyncValues(EGLuint64KHR *ust, EGLuint64KHR *msc, EGLuint64KHR *sbc)
  {
      UNREACHABLE();
      return egl::EglBadSurface();
  }
  
  egl::Error SurfaceGL::getMscRate(EGLint *numerator, EGLint *denominator)
  {
      UNIMPLEMENTED();
      return egl::EglBadAccess();
  }
  
  angle::Result SurfaceGL::initializeContents(const gl::Context *context,
                                              const gl::ImageIndex &imageIndex)
  {
      FramebufferGL *framebufferGL = GetImplAs<FramebufferGL>(context->getFramebuffer({0}));
      ASSERT(framebufferGL->isDefault());
  
      BlitGL *blitter = GetBlitGL(context);
      ANGLE_TRY(blitter->clearFramebuffer(context, framebufferGL));
  
      return angle::Result::Continue;
  }
  
  bool SurfaceGL::hasEmulatedAlphaChannel() const
  {
      return false;
  }
  
  }  // namespace rx
  

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