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

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• Hash : 55def583
  Author :
  Date : 2015-05-04T11:24:57
  

  translator: Fix variable collection for gl_DepthRange.
  
  *re-land with Linux fixes, and fix for locations*
  
  This built-in uniform wasn't being collected in VariableInfo.cpp.
  Also remove the existing workaround for D3D gl_DepthRange
  collection.
  
  BUG=angleproject:991
  BUG=478570
  
  Change-Id: Iba84651bfc58f82fd4ce039421874f561f83c348
  Reviewed-on: https://chromium-review.googlesource.com/268840
  Tested-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• 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(GLenum type, GLenum precision, const std::string &name, unsigned int arraySize,
                               const int blockIndex, const sh::BlockMemberInfo &blockInfo)
      : type(type),
        precision(precision),
        name(name),
        arraySize(arraySize),
        blockIndex(blockIndex),
        blockInfo(blockInfo),
        data(NULL),
        dirty(true),
        psRegisterIndex(GL_INVALID_INDEX),
        vsRegisterIndex(GL_INVALID_INDEX),
        registerCount(0),
        registerElement(0)
  {
      // We use data storage for default block uniforms to cache values that are sent to D3D during rendering
      // Uniform blocks/buffers are treated separately by the Renderer (ES3 path only)
      if (isInDefaultBlock())
      {
          size_t bytes = dataSize();
          data = new unsigned char[bytes];
          memset(data, 0, bytes);
          registerCount = VariableRowCount(type) * elementCount();
      }
  }
  
  LinkedUniform::~LinkedUniform()
  {
      delete[] data;
  }
  
  bool LinkedUniform::isArray() const
  {
      return arraySize > 0;
  }
  
  unsigned int LinkedUniform::elementCount() const
  {
      return arraySize > 0 ? arraySize : 1;
  }
  
  bool LinkedUniform::isReferencedByVertexShader() const
  {
      return vsRegisterIndex != GL_INVALID_INDEX;
  }
  
  bool LinkedUniform::isReferencedByFragmentShader() const
  {
      return psRegisterIndex != GL_INVALID_INDEX;
  }
  
  bool LinkedUniform::isInDefaultBlock() const
  {
      return blockIndex == -1;
  }
  
  size_t LinkedUniform::dataSize() const
  {
      ASSERT(type != GL_STRUCT_ANGLEX);
      return VariableInternalSize(type) * elementCount();
  }
  
  bool LinkedUniform::isSampler() const
  {
      return IsSamplerType(type);
  }
  
  bool LinkedUniform::isBuiltIn() const
  {
      return name.compare(0, 3, "gl_") == 0;
  }
  
  UniformBlock::UniformBlock(const std::string &name, unsigned int elementIndex, unsigned int dataSize)
      : name(name),
        elementIndex(elementIndex),
        dataSize(dataSize),
        psRegisterIndex(GL_INVALID_INDEX),
        vsRegisterIndex(GL_INVALID_INDEX)
  {
  }
  
  bool UniformBlock::isArrayElement() const
  {
      return elementIndex != GL_INVALID_INDEX;
  }
  
  bool UniformBlock::isReferencedByVertexShader() const
  {
      return vsRegisterIndex != GL_INVALID_INDEX;
  }
  
  bool UniformBlock::isReferencedByFragmentShader() const
  {
      return psRegisterIndex != GL_INVALID_INDEX;
  }
  
  }
  

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