kc3-lang/angle/src/libANGLE/renderer/d3d/d3d11/VertexBuffer11.cpp

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• Hash : f015ae81
  Author :
  Date : 2021-08-02T12:47:32
  

  Implement onLabelUpdate method.
  
  This change will implement the onLabelUpdate method by calling from
  every TextureStorage object. Instead of using setDebugName,
  introduced two new functions, setInternalName and setKHRDebugLabel,
  which will set the internal name and KHR label respectively that will
  further be sent to D3D string.
  
  Bug: chromium:1164111
  Change-Id: I401ca9f6e8a2099a8807f0d7f321efe74269f9f0
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3067921
  Reviewed-by: Rafael Cintron <rafael.cintron@microsoft.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Commit-Queue: Rafael Cintron <rafael.cintron@microsoft.com>
  

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• src/libANGLE/renderer/d3d/d3d11/VertexBuffer11.cpp

• //
  // Copyright 2013 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.
  //
  
  // VertexBuffer11.cpp: Defines the D3D11 VertexBuffer implementation.
  
  #include "libANGLE/renderer/d3d/d3d11/VertexBuffer11.h"
  
  #include "libANGLE/Buffer.h"
  #include "libANGLE/Context.h"
  #include "libANGLE/VertexAttribute.h"
  #include "libANGLE/formatutils.h"
  #include "libANGLE/renderer/d3d/d3d11/Buffer11.h"
  #include "libANGLE/renderer/d3d/d3d11/Context11.h"
  #include "libANGLE/renderer/d3d/d3d11/Renderer11.h"
  #include "libANGLE/renderer/d3d/d3d11/formatutils11.h"
  #include "libANGLE/renderer/d3d/d3d11/renderer11_utils.h"
  
  namespace rx
  {
  
  VertexBuffer11::VertexBuffer11(Renderer11 *const renderer)
      : mRenderer(renderer),
        mBuffer(),
        mBufferSize(0),
        mDynamicUsage(false),
        mMappedResourceData(nullptr)
  {}
  
  VertexBuffer11::~VertexBuffer11()
  {
      ASSERT(mMappedResourceData == nullptr);
  }
  
  angle::Result VertexBuffer11::initialize(const gl::Context *context,
                                           unsigned int size,
                                           bool dynamicUsage)
  {
      mBuffer.reset();
      updateSerial();
  
      if (size > 0)
      {
          D3D11_BUFFER_DESC bufferDesc;
          bufferDesc.ByteWidth           = size;
          bufferDesc.Usage               = D3D11_USAGE_DYNAMIC;
          bufferDesc.BindFlags           = D3D11_BIND_VERTEX_BUFFER;
          bufferDesc.CPUAccessFlags      = D3D11_CPU_ACCESS_WRITE;
          bufferDesc.MiscFlags           = 0;
          bufferDesc.StructureByteStride = 0;
  
          ANGLE_TRY(mRenderer->allocateResource(GetImplAs<Context11>(context), bufferDesc, &mBuffer));
  
          if (dynamicUsage)
          {
              mBuffer.setInternalName("VertexBuffer11(dynamic)");
          }
          else
          {
              mBuffer.setInternalName("VertexBuffer11(static)");
          }
      }
  
      mBufferSize   = size;
      mDynamicUsage = dynamicUsage;
  
      return angle::Result::Continue;
  }
  
  angle::Result VertexBuffer11::mapResource(const gl::Context *context)
  {
      if (mMappedResourceData == nullptr)
      {
          D3D11_MAPPED_SUBRESOURCE mappedResource;
  
          ANGLE_TRY(mRenderer->mapResource(context, mBuffer.get(), 0, D3D11_MAP_WRITE_NO_OVERWRITE, 0,
                                           &mappedResource));
  
          mMappedResourceData = static_cast<uint8_t *>(mappedResource.pData);
      }
  
      return angle::Result::Continue;
  }
  
  void VertexBuffer11::hintUnmapResource()
  {
      if (mMappedResourceData != nullptr)
      {
          ID3D11DeviceContext *dxContext = mRenderer->getDeviceContext();
          dxContext->Unmap(mBuffer.get(), 0);
  
          mMappedResourceData = nullptr;
      }
  }
  
  angle::Result VertexBuffer11::storeVertexAttributes(const gl::Context *context,
                                                      const gl::VertexAttribute &attrib,
                                                      const gl::VertexBinding &binding,
                                                      gl::VertexAttribType currentValueType,
                                                      GLint start,
                                                      size_t count,
                                                      GLsizei instances,
                                                      unsigned int offset,
                                                      const uint8_t *sourceData)
  {
      ASSERT(mBuffer.valid());
  
      int inputStride = static_cast<int>(ComputeVertexAttributeStride(attrib, binding));
  
      // This will map the resource if it isn't already mapped.
      ANGLE_TRY(mapResource(context));
  
      uint8_t *output = mMappedResourceData + offset;
  
      const uint8_t *input = sourceData;
  
      if (instances == 0 || binding.getDivisor() == 0)
      {
          input += inputStride * start;
      }
  
      angle::FormatID vertexFormatID       = gl::GetVertexFormatID(attrib, currentValueType);
      const D3D_FEATURE_LEVEL featureLevel = mRenderer->getRenderer11DeviceCaps().featureLevel;
      const d3d11::VertexFormat &vertexFormatInfo =
          d3d11::GetVertexFormatInfo(vertexFormatID, featureLevel);
      ASSERT(vertexFormatInfo.copyFunction != nullptr);
      vertexFormatInfo.copyFunction(input, inputStride, count, output);
  
      return angle::Result::Continue;
  }
  
  unsigned int VertexBuffer11::getBufferSize() const
  {
      return mBufferSize;
  }
  
  angle::Result VertexBuffer11::setBufferSize(const gl::Context *context, unsigned int size)
  {
      if (size > mBufferSize)
      {
          return initialize(context, size, mDynamicUsage);
      }
  
      return angle::Result::Continue;
  }
  
  angle::Result VertexBuffer11::discard(const gl::Context *context)
  {
      ASSERT(mBuffer.valid());
  
      D3D11_MAPPED_SUBRESOURCE mappedResource;
      ANGLE_TRY(mRenderer->mapResource(context, mBuffer.get(), 0, D3D11_MAP_WRITE_DISCARD, 0,
                                       &mappedResource));
  
      mRenderer->getDeviceContext()->Unmap(mBuffer.get(), 0);
  
      return angle::Result::Continue;
  }
  
  const d3d11::Buffer &VertexBuffer11::getBuffer() const
  {
      return mBuffer;
  }
  
  }  // namespace rx
  

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