kc3-lang/angle/src/libANGLE/renderer/DisplayImpl.cpp

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• Hash : 27af0b2d
  Author :
  Date : 2020-10-19T16:49:48
  

  Reland "ANGLE_platform_angle_device_context_volatile_* extensions"
  
  This is a reland of e70f6aa679dd72eca5c88c71b0932928e92d6067
  
  Original change's description:
  > ANGLE_platform_angle_device_context_volatile_* extensions
  >
  > Change from Kimmo Kinnunen downstream:
  > https://bugs.webkit.org/show_bug.cgi?id=216106
  >
  > Add two extensions for EAGL and CGL backends to declare the
  > underlying platform context being "volatile". It means that
  > the thread-global current context is being modified behind
  > ANGLE. If ANGLE context is marked volatile for a particular
  > API, it will sync the underlying context for every EGL
  > function that needs the context. Most intuitive use is
  > for the client to call eglMakeCurrent before calling any
  > gl function if the client knowns the platform state might
  > be dirty.
  >
  > Implement eglReleaseThread for EAGL and CGL backends.
  > Releasing thread will unset the platform current context.
  >
  > Fix a bug of omitting EGL_ANGLE_device_eagl from being
  > advertised.
  >
  > Bug: angleproject:5104
  > Change-Id: I1ec98ad35bc0caada23556ae8697fdef20f65b1a
  > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2486548
  > Commit-Queue: James Darpinian <jdarpinian@chromium.org>
  > Reviewed-by: Kenneth Russell <kbr@chromium.org>
  > Reviewed-by: Geoff Lang <geofflang@chromium.org>
  
  Bug: angleproject:5104
  Change-Id: I88265625a4bb4c1412532768d17d7b4356c7be41
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2508842
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Commit-Queue: James Darpinian <jdarpinian@chromium.org>
  

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• src/libANGLE/renderer/DisplayImpl.cpp

• //
  // Copyright 2014 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.
  //
  
  // DisplayImpl.cpp: Implementation methods of egl::Display
  
  #include "libANGLE/renderer/DisplayImpl.h"
  
  #include "libANGLE/Display.h"
  #include "libANGLE/Surface.h"
  
  namespace rx
  {
  
  DisplayImpl::DisplayImpl(const egl::DisplayState &state)
      : mState(state), mExtensionsInitialized(false), mCapsInitialized(false), mBlobCache(nullptr)
  {}
  
  DisplayImpl::~DisplayImpl()
  {
      ASSERT(mState.surfaceSet.empty());
  }
  
  egl::Error DisplayImpl::prepareForCall()
  {
      return egl::NoError();
  }
  
  egl::Error DisplayImpl::releaseThread()
  {
      return egl::NoError();
  }
  
  const egl::DisplayExtensions &DisplayImpl::getExtensions() const
  {
      if (!mExtensionsInitialized)
      {
          generateExtensions(&mExtensions);
          mExtensionsInitialized = true;
      }
  
      return mExtensions;
  }
  
  egl::Error DisplayImpl::handleGPUSwitch()
  {
      return egl::NoError();
  }
  
  egl::Error DisplayImpl::validateClientBuffer(const egl::Config *configuration,
                                               EGLenum buftype,
                                               EGLClientBuffer clientBuffer,
                                               const egl::AttributeMap &attribs) const
  {
      UNREACHABLE();
      return egl::EglBadDisplay() << "DisplayImpl::validateClientBuffer unimplemented.";
  }
  
  egl::Error DisplayImpl::validateImageClientBuffer(const gl::Context *context,
                                                    EGLenum target,
                                                    EGLClientBuffer clientBuffer,
                                                    const egl::AttributeMap &attribs) const
  {
      UNREACHABLE();
      return egl::EglBadDisplay() << "DisplayImpl::validateImageClientBuffer unimplemented.";
  }
  
  egl::Error DisplayImpl::validatePixmap(egl::Config *config,
                                         EGLNativePixmapType pixmap,
                                         const egl::AttributeMap &attributes) const
  {
      UNREACHABLE();
      return egl::EglBadDisplay() << "DisplayImpl::valdiatePixmap unimplemented.";
  }
  
  const egl::Caps &DisplayImpl::getCaps() const
  {
      if (!mCapsInitialized)
      {
          generateCaps(&mCaps);
          mCapsInitialized = true;
      }
  
      return mCaps;
  }
  
  }  // namespace rx
  

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