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

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• Hash : c4197713
  Author :
  Date : 2019-06-03T19:23:02
  

  Implement glImportMemoryZirconHandle & glImportSemaphoreZirconHandle
  
  Implement import of fuchsia external objects passed by zircon handle. This
  works exactly the same as with file descriptors.
  
  Bug: angleproject:3492
  Change-Id: I4d46917dfc5902f00c94550158a9f8073097f0a4
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1642334
  Commit-Queue: Michael Spang <spang@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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

• //
  // Copyright 2019 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.
  //
  
  #include "libANGLE/renderer/gl/SemaphoreGL.h"
  
  #include "libANGLE/Context.h"
  #include "libANGLE/renderer/gl/BufferGL.h"
  #include "libANGLE/renderer/gl/ContextGL.h"
  #include "libANGLE/renderer/gl/FunctionsGL.h"
  #include "libANGLE/renderer/gl/TextureGL.h"
  #include "libANGLE/renderer/gl/renderergl_utils.h"
  
  namespace rx
  {
  namespace
  {
  void GatherNativeBufferIDs(const gl::BufferBarrierVector &bufferBarriers,
                             gl::BarrierVector<GLuint> *outIDs)
  {
      outIDs->resize(bufferBarriers.size());
      for (GLuint bufferIdx = 0; bufferIdx < bufferBarriers.size(); bufferIdx++)
      {
          (*outIDs)[bufferIdx] = GetImplAs<BufferGL>(bufferBarriers[bufferIdx])->getBufferID();
      }
  }
  
  void GatherNativeTextureIDs(const gl::TextureBarrierVector &textureBarriers,
                              gl::BarrierVector<GLuint> *outIDs,
                              gl::BarrierVector<GLenum> *outLayouts)
  {
      outIDs->resize(textureBarriers.size());
      outLayouts->resize(textureBarriers.size());
      for (GLuint textureIdx = 0; textureIdx < textureBarriers.size(); textureIdx++)
      {
          (*outIDs)[textureIdx] =
              GetImplAs<TextureGL>(textureBarriers[textureIdx].texture)->getTextureID();
          (*outLayouts)[textureIdx] = textureBarriers[textureIdx].layout;
      }
  }
  
  }  // anonymous namespace
  
  SemaphoreGL::SemaphoreGL(GLuint semaphoreID) : mSemaphoreID(semaphoreID)
  {
      ASSERT(mSemaphoreID != 0);
  }
  
  SemaphoreGL::~SemaphoreGL()
  {
      ASSERT(mSemaphoreID == 0);
  }
  
  void SemaphoreGL::onDestroy(const gl::Context *context)
  {
      const FunctionsGL *functions = GetFunctionsGL(context);
      functions->deleteSemaphoresEXT(1, &mSemaphoreID);
      mSemaphoreID = 0;
  }
  
  angle::Result SemaphoreGL::importFd(gl::Context *context, gl::HandleType handleType, GLint fd)
  {
      const FunctionsGL *functions = GetFunctionsGL(context);
      functions->importSemaphoreFdEXT(mSemaphoreID, ToGLenum(handleType), fd);
      return angle::Result::Continue;
  }
  
  angle::Result SemaphoreGL::importZirconHandle(gl::Context *context,
                                                gl::HandleType handleType,
                                                GLuint handle)
  {
      UNREACHABLE();
      return angle::Result::Stop;
  }
  
  angle::Result SemaphoreGL::wait(gl::Context *context,
                                  const gl::BufferBarrierVector &bufferBarriers,
                                  const gl::TextureBarrierVector &textureBarriers)
  {
      const FunctionsGL *functions = GetFunctionsGL(context);
  
      gl::BarrierVector<GLuint> bufferIDs(bufferBarriers.size());
      GatherNativeBufferIDs(bufferBarriers, &bufferIDs);
  
      gl::BarrierVector<GLuint> textureIDs(textureBarriers.size());
      gl::BarrierVector<GLenum> textureLayouts(textureBarriers.size());
      GatherNativeTextureIDs(textureBarriers, &textureIDs, &textureLayouts);
      ASSERT(textureIDs.size() == textureLayouts.size());
  
      functions->waitSemaphoreEXT(mSemaphoreID, static_cast<GLuint>(bufferIDs.size()),
                                  bufferIDs.data(), static_cast<GLuint>(textureIDs.size()),
                                  textureIDs.data(), textureLayouts.data());
  
      return angle::Result::Continue;
  }
  
  angle::Result SemaphoreGL::signal(gl::Context *context,
                                    const gl::BufferBarrierVector &bufferBarriers,
                                    const gl::TextureBarrierVector &textureBarriers)
  {
      const FunctionsGL *functions = GetFunctionsGL(context);
  
      gl::BarrierVector<GLuint> bufferIDs(bufferBarriers.size());
      GatherNativeBufferIDs(bufferBarriers, &bufferIDs);
  
      gl::BarrierVector<GLuint> textureIDs(textureBarriers.size());
      gl::BarrierVector<GLenum> textureLayouts(textureBarriers.size());
      GatherNativeTextureIDs(textureBarriers, &textureIDs, &textureLayouts);
      ASSERT(textureIDs.size() == textureLayouts.size());
  
      functions->signalSemaphoreEXT(mSemaphoreID, static_cast<GLuint>(bufferIDs.size()),
                                    bufferIDs.data(), static_cast<GLuint>(textureIDs.size()),
                                    textureIDs.data(), textureLayouts.data());
  
      return angle::Result::Continue;
  }
  
  GLuint SemaphoreGL::getSemaphoreID() const
  {
      return mSemaphoreID;
  }
  }  // namespace rx
  

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