kc3-lang/angle/src/libANGLE/TransformFeedback.cpp

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• Hash : 7aea7e05
  Author :
  Date : 2016-05-10T10:39:45
  

  Add EGLImplFactory.
  
  Also rename ImplFactory to GLImplFactory.
  
  This will allow us to use the same factory design pattern for EGL
  objects, and to use State helper classes to share data with Impls.
  
  BUG=angleproject:1363
  BUG=angleproject:1369
  
  Change-Id: I07a8fe40838d5d4ca32b04910c306edeab4d25a7
  Reviewed-on: https://chromium-review.googlesource.com/342051
  Reviewed-by: Corentin Wallez <cwallez@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/TransformFeedback.cpp

• //
  // Copyright (c) 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.
  //
  
  #include "libANGLE/TransformFeedback.h"
  
  #include "libANGLE/Buffer.h"
  #include "libANGLE/Caps.h"
  #include "libANGLE/ContextState.h"
  #include "libANGLE/Program.h"
  #include "libANGLE/renderer/GLImplFactory.h"
  #include "libANGLE/renderer/TransformFeedbackImpl.h"
  
  namespace gl
  {
  
  TransformFeedback::TransformFeedback(rx::GLImplFactory *implFactory, GLuint id, const Caps &caps)
      : RefCountObject(id),
        mImplementation(implFactory->createTransformFeedback()),
        mLabel(),
        mActive(false),
        mPrimitiveMode(GL_NONE),
        mPaused(false),
        mProgram(nullptr),
        mGenericBuffer(),
        mIndexedBuffers(caps.maxTransformFeedbackSeparateAttributes)
  {
      ASSERT(mImplementation != nullptr);
  }
  
  TransformFeedback::~TransformFeedback()
  {
      if (mProgram)
      {
          mProgram->release();
          mProgram = nullptr;
      }
      mGenericBuffer.set(nullptr);
      for (size_t i = 0; i < mIndexedBuffers.size(); i++)
      {
          mIndexedBuffers[i].set(nullptr);
      }
  
      SafeDelete(mImplementation);
  }
  
  void TransformFeedback::setLabel(const std::string &label)
  {
      mLabel = label;
  }
  
  const std::string &TransformFeedback::getLabel() const
  {
      return mLabel;
  }
  
  void TransformFeedback::begin(GLenum primitiveMode, Program *program)
  {
      mActive = true;
      mPrimitiveMode = primitiveMode;
      mPaused = false;
      mImplementation->begin(primitiveMode);
      bindProgram(program);
  }
  
  void TransformFeedback::end()
  {
      mActive = false;
      mPrimitiveMode = GL_NONE;
      mPaused = false;
      mImplementation->end();
      if (mProgram)
      {
          mProgram->release();
          mProgram = nullptr;
      }
  }
  
  void TransformFeedback::pause()
  {
      mPaused = true;
      mImplementation->pause();
  }
  
  void TransformFeedback::resume()
  {
      mPaused = false;
      mImplementation->resume();
  }
  
  bool TransformFeedback::isActive() const
  {
      return mActive;
  }
  
  bool TransformFeedback::isPaused() const
  {
      return mPaused;
  }
  
  GLenum TransformFeedback::getPrimitiveMode() const
  {
      return mPrimitiveMode;
  }
  
  void TransformFeedback::bindProgram(Program *program)
  {
      if (mProgram != program)
      {
          if (mProgram != nullptr)
          {
              mProgram->release();
          }
          mProgram = program;
          if (mProgram != nullptr)
          {
              mProgram->addRef();
          }
      }
  }
  
  bool TransformFeedback::hasBoundProgram(GLuint program) const
  {
      return mProgram != nullptr && mProgram->id() == program;
  }
  
  void TransformFeedback::bindGenericBuffer(Buffer *buffer)
  {
      mGenericBuffer.set(buffer);
      mImplementation->bindGenericBuffer(mGenericBuffer);
  }
  
  void TransformFeedback::detachBuffer(GLuint bufferName)
  {
      for (size_t index = 0; index < mIndexedBuffers.size(); index++)
      {
          if (mIndexedBuffers[index].id() == bufferName)
          {
              mIndexedBuffers[index].set(nullptr);
              mImplementation->bindIndexedBuffer(index, mIndexedBuffers[index]);
          }
      }
  
      if (mGenericBuffer.id() == bufferName)
      {
          mGenericBuffer.set(nullptr);
          mImplementation->bindGenericBuffer(mGenericBuffer);
      }
  }
  
  const BindingPointer<Buffer> &TransformFeedback::getGenericBuffer() const
  {
      return mGenericBuffer;
  }
  
  void TransformFeedback::bindIndexedBuffer(size_t index, Buffer *buffer, size_t offset, size_t size)
  {
      ASSERT(index < mIndexedBuffers.size());
      mIndexedBuffers[index].set(buffer, offset, size);
      mImplementation->bindIndexedBuffer(index, mIndexedBuffers[index]);
  }
  
  const OffsetBindingPointer<Buffer> &TransformFeedback::getIndexedBuffer(size_t index) const
  {
      ASSERT(index < mIndexedBuffers.size());
      return mIndexedBuffers[index];
  }
  
  size_t TransformFeedback::getIndexedBufferCount() const
  {
      return mIndexedBuffers.size();
  }
  
  rx::TransformFeedbackImpl *TransformFeedback::getImplementation()
  {
      return mImplementation;
  }
  
  const rx::TransformFeedbackImpl *TransformFeedback::getImplementation() const
  {
      return mImplementation;
  }
  
  }
  

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