kc3-lang/angle/src/libANGLE/renderer/d3d/d3d11/TransformFeedback11.cpp

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• Hash : b19d17b8
  Author :
  Date : 2022-12-09T14:38:08
  

  Vulkan: Split Serial class into UniqueSerial and Serial
  
  This CL splits Serial class into two classes: UniqueSerial and Serial.
  UniqueSerial supports the object unique serial usage where there is ==
  and != operator but no > or < comparison. UniqueSerial can have invalid
  value, but Serial will not have invalid value (in next CL). The main
  reason is for next CL we can further optimize out the invalid value
  check in the QueueSerial comparison.
  
  Bug: b/262047600
  Change-Id: Ieaed2a0d5546b012a6d63aa18b6006595e4aee1b
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4093557
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Commit-Queue: Charlie Lao <cclao@google.com>
  Reviewed-by: Amirali Abdolrashidi <abdolrashidi@google.com>
  

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• src/libANGLE/renderer/d3d/d3d11/TransformFeedback11.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.
  //
  
  // TransformFeedbackD3D.cpp is a no-op implementation for both the D3D9 and D3D11 renderers.
  
  #include "libANGLE/renderer/d3d/d3d11/TransformFeedback11.h"
  
  #include "libANGLE/Buffer.h"
  #include "libANGLE/renderer/d3d/d3d11/Buffer11.h"
  #include "libANGLE/renderer/d3d/d3d11/Renderer11.h"
  
  namespace rx
  {
  
  TransformFeedback11::TransformFeedback11(const gl::TransformFeedbackState &state,
                                           Renderer11 *renderer)
      : TransformFeedbackImpl(state),
        mRenderer(renderer),
        mIsDirty(true),
        mBuffers(state.getIndexedBuffers().size(), nullptr),
        mBufferOffsets(state.getIndexedBuffers().size(), 0),
        mSerial(mRenderer->generateSerial())
  {}
  
  TransformFeedback11::~TransformFeedback11() {}
  
  angle::Result TransformFeedback11::begin(const gl::Context *context,
                                           gl::PrimitiveMode primitiveMode)
  {
      // Reset all the cached offsets to the binding offsets
      mIsDirty = true;
      for (size_t bindingIdx = 0; bindingIdx < mBuffers.size(); bindingIdx++)
      {
          const auto &binding = mState.getIndexedBuffer(bindingIdx);
          if (binding.get() != nullptr)
          {
              mBufferOffsets[bindingIdx] = static_cast<UINT>(binding.getOffset());
          }
          else
          {
              mBufferOffsets[bindingIdx] = 0;
          }
      }
      mRenderer->getStateManager()->invalidateTransformFeedback();
      return angle::Result::Continue;
  }
  
  angle::Result TransformFeedback11::end(const gl::Context *context)
  {
      mRenderer->getStateManager()->invalidateTransformFeedback();
      if (mRenderer->getFeatures().flushAfterEndingTransformFeedback.enabled)
      {
          mRenderer->getDeviceContext()->Flush();
      }
      return angle::Result::Continue;
  }
  
  angle::Result TransformFeedback11::pause(const gl::Context *context)
  {
      mRenderer->getStateManager()->invalidateTransformFeedback();
      return angle::Result::Continue;
  }
  
  angle::Result TransformFeedback11::resume(const gl::Context *context)
  {
      mRenderer->getStateManager()->invalidateTransformFeedback();
      return angle::Result::Continue;
  }
  
  angle::Result TransformFeedback11::bindIndexedBuffer(
      const gl::Context *context,
      size_t index,
      const gl::OffsetBindingPointer<gl::Buffer> &binding)
  {
      mIsDirty              = true;
      mBufferOffsets[index] = static_cast<UINT>(binding.getOffset());
      mRenderer->getStateManager()->invalidateTransformFeedback();
      return angle::Result::Continue;
  }
  
  void TransformFeedback11::onApply()
  {
      mIsDirty = false;
  
      // Change all buffer offsets to -1 so that if any of them need to be re-applied, the are set to
      // append
      std::fill(mBufferOffsets.begin(), mBufferOffsets.end(), -1);
  }
  
  bool TransformFeedback11::isDirty() const
  {
      return mIsDirty;
  }
  
  UINT TransformFeedback11::getNumSOBuffers() const
  {
      return static_cast<UINT>(mBuffers.size());
  }
  
  angle::Result TransformFeedback11::getSOBuffers(const gl::Context *context,
                                                  const std::vector<ID3D11Buffer *> **buffersOut)
  {
      for (size_t bindingIdx = 0; bindingIdx < mBuffers.size(); bindingIdx++)
      {
          const auto &binding = mState.getIndexedBuffer(bindingIdx);
          if (binding.get() != nullptr)
          {
              Buffer11 *storage = GetImplAs<Buffer11>(binding.get());
              ANGLE_TRY(storage->getBuffer(context, BUFFER_USAGE_VERTEX_OR_TRANSFORM_FEEDBACK,
                                           &mBuffers[bindingIdx]));
          }
      }
  
      *buffersOut = &mBuffers;
      return angle::Result::Continue;
  }
  
  const std::vector<UINT> &TransformFeedback11::getSOBufferOffsets() const
  {
      return mBufferOffsets;
  }
  
  UniqueSerial TransformFeedback11::getSerial() const
  {
      return mSerial;
  }
  
  }  // namespace rx
  

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