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//
// 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::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() + getElementSize() * elementIndex;
}
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();
}
}
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