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

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• Author : Olli Etuaho
  Date : 2017-02-13 12:31:03
  Hash : ceb1048f
  Message : Add classification of image type enums Implement classifying image enums in utilities and plumb the image type check to Uniform objects as well. This functionality will be used to add API support for images. BUG=angleproject:1442 Change-Id: Idd2ee5ebacd38290aeeace1177165c740bc42c7e Reviewed-on: https://chromium-review.googlesource.com/441585 Commit-Queue: Olli Etuaho <oetuaho@nvidia.com> Reviewed-by: Corentin Wallez <cwallez@chromium.org>

• src/libANGLE/Uniform.cpp

• //
  // Copyright (c) 2010-2013 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.
  //
  
  #include "libANGLE/Uniform.h"
  
  #include "common/utilities.h"
  
  #include <cstring>
  
  namespace gl
  {
  
  LinkedUniform::LinkedUniform()
      : blockIndex(-1), blockInfo(sh::BlockMemberInfo::getDefaultBlockInfo())
  {
  }
  
  LinkedUniform::LinkedUniform(GLenum typeIn,
                               GLenum precisionIn,
                               const std::string &nameIn,
                               unsigned int arraySizeIn,
                               const int blockIndexIn,
                               const sh::BlockMemberInfo &blockInfoIn)
      : blockIndex(blockIndexIn), blockInfo(blockInfoIn)
  {
      type      = typeIn;
      precision = precisionIn;
      name      = nameIn;
      arraySize = arraySizeIn;
  }
  
  LinkedUniform::LinkedUniform(const sh::Uniform &uniform)
      : sh::Uniform(uniform), blockIndex(-1), blockInfo(sh::BlockMemberInfo::getDefaultBlockInfo())
  {
  }
  
  LinkedUniform::LinkedUniform(const LinkedUniform &uniform)
      : sh::Uniform(uniform), blockIndex(uniform.blockIndex), blockInfo(uniform.blockInfo)
  {
      // This function is not intended to be called during runtime.
      ASSERT(uniform.mLazyData.empty());
  }
  
  LinkedUniform &LinkedUniform::operator=(const LinkedUniform &uniform)
  {
      // This function is not intended to be called during runtime.
      ASSERT(uniform.mLazyData.empty());
  
      sh::Uniform::operator=(uniform);
      blockIndex           = uniform.blockIndex;
      blockInfo            = uniform.blockInfo;
  
      return *this;
  }
  
  LinkedUniform::~LinkedUniform()
  {
  }
  
  bool LinkedUniform::isInDefaultBlock() const
  {
      return blockIndex == -1;
  }
  
  size_t LinkedUniform::dataSize() const
  {
      ASSERT(type != GL_STRUCT_ANGLEX);
      if (mLazyData.empty())
      {
          mLazyData.resize(VariableExternalSize(type) * elementCount());
          ASSERT(!mLazyData.empty());
      }
  
      return mLazyData.size();
  }
  
  uint8_t *LinkedUniform::data()
  {
      if (mLazyData.empty())
      {
          // dataSize() will init the data store.
          size_t size = dataSize();
          memset(mLazyData.data(), 0, size);
      }
  
      return mLazyData.data();
  }
  
  const uint8_t *LinkedUniform::data() const
  {
      return const_cast<LinkedUniform *>(this)->data();
  }
  
  bool LinkedUniform::isSampler() const
  {
      return IsSamplerType(type);
  }
  
  bool LinkedUniform::isImage() const
  {
      return IsImageType(type);
  }
  
  bool LinkedUniform::isField() const
  {
      return name.find('.') != std::string::npos;
  }
  
  size_t LinkedUniform::getElementSize() const
  {
      return VariableExternalSize(type);
  }
  
  size_t LinkedUniform::getElementComponents() const
  {
      return VariableComponentCount(type);
  }
  
  uint8_t *LinkedUniform::getDataPtrToElement(size_t elementIndex)
  {
      ASSERT((!isArray() && elementIndex == 0) || (isArray() && elementIndex < arraySize));
      return data() + (elementIndex > 0 ? (getElementSize() * elementIndex) : 0u);
  }
  
  const uint8_t *LinkedUniform::getDataPtrToElement(size_t elementIndex) const
  {
      return const_cast<LinkedUniform *>(this)->getDataPtrToElement(elementIndex);
  }
  
  UniformBlock::UniformBlock()
      : isArray(false),
        arrayElement(0),
        dataSize(0),
        vertexStaticUse(false),
        fragmentStaticUse(false),
        computeStaticUse(false)
  {
  }
  
  UniformBlock::UniformBlock(const std::string &nameIn, bool isArrayIn, unsigned int arrayElementIn)
      : name(nameIn),
        isArray(isArrayIn),
        arrayElement(arrayElementIn),
        dataSize(0),
        vertexStaticUse(false),
        fragmentStaticUse(false),
        computeStaticUse(false)
  {
  }
  
  std::string UniformBlock::nameWithArrayIndex() const
  {
      std::stringstream fullNameStr;
      fullNameStr << name;
      if (isArray)
      {
          fullNameStr << "[" << arrayElement << "]";
      }
  
      return fullNameStr.str();
  }
  }