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/*-------------------------------------------------------------------------
* drawElements Quality Program Random Shader Generator
* ----------------------------------------------------
*
* Copyright 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*//*!
* \file
* \brief Shader Evaluation Context.
*//*--------------------------------------------------------------------*/
#include "rsgExecutionContext.hpp"
namespace rsg
{
ExecMaskStorage::ExecMaskStorage (bool initVal)
{
for (int i = 0; i < EXEC_VEC_WIDTH; i++)
m_data[i].as<bool>() = initVal;
}
ExecValueAccess ExecMaskStorage::getValue (void)
{
return ExecValueAccess(VariableType::getScalarType(VariableType::TYPE_BOOL), m_data);
}
ExecConstValueAccess ExecMaskStorage::getValue (void) const
{
return ExecConstValueAccess(VariableType::getScalarType(VariableType::TYPE_BOOL), m_data);
}
ExecutionContext::ExecutionContext (const Sampler2DMap& samplers2D, const SamplerCubeMap& samplersCube)
: m_samplers2D (samplers2D)
, m_samplersCube (samplersCube)
{
// Initialize execution mask to true
ExecMaskStorage initVal(true);
pushExecutionMask(initVal.getValue());
}
ExecutionContext::~ExecutionContext (void)
{
for (VarValueMap::iterator i = m_varValues.begin(); i != m_varValues.end(); i++)
delete i->second;
m_varValues.clear();
}
ExecValueAccess ExecutionContext::getValue (const Variable* variable)
{
ExecValueStorage* storage = m_varValues[variable];
if (!storage)
{
storage = new ExecValueStorage(variable->getType());
m_varValues[variable] = storage;
}
return storage->getValue(variable->getType());
}
const Sampler2D& ExecutionContext::getSampler2D (const Variable* sampler) const
{
const ExecValueStorage* samplerVal = m_varValues.find(sampler)->second;
int samplerNdx = samplerVal->getValue(sampler->getType()).asInt(0);
return m_samplers2D.find(samplerNdx)->second;
}
const SamplerCube& ExecutionContext::getSamplerCube (const Variable* sampler) const
{
const ExecValueStorage* samplerVal = m_varValues.find(sampler)->second;
int samplerNdx = samplerVal->getValue(sampler->getType()).asInt(0);
return m_samplersCube.find(samplerNdx)->second;
}
void ExecutionContext::andExecutionMask (ExecConstValueAccess value)
{
ExecMaskStorage tmp;
ExecValueAccess newValue = tmp.getValue();
ExecConstValueAccess oldValue = getExecutionMask();
for (int i = 0; i < EXEC_VEC_WIDTH; i++)
newValue.asBool(i) = oldValue.asBool(i) && value.asBool(i);
pushExecutionMask(newValue);
}
void ExecutionContext::pushExecutionMask (ExecConstValueAccess value)
{
ExecMaskStorage tmp;
tmp.getValue() = value.value();
m_execMaskStack.push_back(tmp);
}
void ExecutionContext::popExecutionMask (void)
{
m_execMaskStack.pop_back();
}
ExecConstValueAccess ExecutionContext::getExecutionMask (void) const
{
return m_execMaskStack[m_execMaskStack.size()-1].getValue();
}
void assignMasked (ExecValueAccess dst, ExecConstValueAccess src, ExecConstValueAccess mask)
{
const VariableType& type = dst.getType();
switch (type.getBaseType())
{
case VariableType::TYPE_ARRAY:
{
int numElems = type.getNumElements();
for (int elemNdx = 0; elemNdx < numElems; elemNdx++)
assignMasked(dst.arrayElement(elemNdx), src.arrayElement(elemNdx), mask);
break;
}
case VariableType::TYPE_STRUCT:
{
int numMembers = (int)type.getMembers().size();
for (int memberNdx = 0; memberNdx < numMembers; memberNdx++)
assignMasked(dst.member(memberNdx), src.member(memberNdx), mask);
break;
}
case VariableType::TYPE_FLOAT:
case VariableType::TYPE_INT:
case VariableType::TYPE_BOOL:
case VariableType::TYPE_SAMPLER_2D:
case VariableType::TYPE_SAMPLER_CUBE:
{
for (int elemNdx = 0; elemNdx < type.getNumElements(); elemNdx++)
{
ExecValueAccess dstElem = dst.component(elemNdx);
ExecConstValueAccess srcElem = src.component(elemNdx);
for (int compNdx = 0; compNdx < EXEC_VEC_WIDTH; compNdx++)
{
if (mask.asBool(compNdx))
dstElem.asScalar(compNdx) = srcElem.asScalar(compNdx);
}
}
break;
}
default:
DE_FATAL("Unsupported");
break;
}
}
} // rsg