kc3-lang/angle/src/libANGLE/renderer/d3d/ShaderExecutableD3D.cpp

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• Author : Jamie Madill
  Date : 2017-08-31 13:28:28
  Hash : be5e2ec3
  Message : Remove uniform memory copy from GL front-end. This moves the uniform query to the back-end. In D3D, this requires a bit more redesign, especially for matrix uniforms. Gives about a 10% speed improvement in the GL/NULL uniforms stress test on Windows (UniformsBenchmark.Run/gl_null_400_vec4). BUG=angleproject:1390 Change-Id: Idac22a77118e9e94d2f28c585e31ff0bc785ba94 Reviewed-on: https://chromium-review.googlesource.com/623929 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org>

• src/libANGLE/renderer/d3d/ShaderExecutableD3D.cpp

• //
  // Copyright (c) 2012-2015 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.
  //
  
  // ShaderExecutable.cpp: Implements a class to contain D3D shader executable
  // implementation details.
  
  #include "libANGLE/renderer/d3d/ShaderExecutableD3D.h"
  
  #include "common/angleutils.h"
  
  namespace rx
  {
  
  ShaderExecutableD3D::ShaderExecutableD3D(const void *function, size_t length)
      : mFunctionBuffer(length)
  {
      memcpy(mFunctionBuffer.data(), function, length);
  }
  
  ShaderExecutableD3D::~ShaderExecutableD3D()
  {
  }
  
  const uint8_t *ShaderExecutableD3D::getFunction() const
  {
      return mFunctionBuffer.data();
  }
  
  size_t ShaderExecutableD3D::getLength() const
  {
      return mFunctionBuffer.size();
  }
  
  const std::string &ShaderExecutableD3D::getDebugInfo() const
  {
      return mDebugInfo;
  }
  
  void ShaderExecutableD3D::appendDebugInfo(const std::string &info)
  {
      mDebugInfo += info;
  }
  
  UniformStorageD3D::UniformStorageD3D(size_t initialSize) : mUniformData()
  {
      bool result = mUniformData.resize(initialSize);
      ASSERT(result);
  
      // Uniform data is zero-initialized by default.
      mUniformData.fill(0);
  }
  
  UniformStorageD3D::~UniformStorageD3D()
  {
  }
  
  size_t UniformStorageD3D::size() const
  {
      return mUniformData.size();
  }
  
  uint8_t *UniformStorageD3D::getDataPointer(unsigned int registerIndex, unsigned int registerElement)
  {
      size_t offset = ((registerIndex * 4 + registerElement) * sizeof(float));
      return mUniformData.data() + offset;
  }
  
  }  // namespace rx