/*-------------------------------------------------------------------------
|
* 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 Program generator.
|
*//*--------------------------------------------------------------------*/
|
|
#include "rsgProgramGenerator.hpp"
|
#include "rsgShaderGenerator.hpp"
|
#include "rsgGeneratorState.hpp"
|
|
using std::vector;
|
|
namespace rsg
|
{
|
|
ProgramGenerator::ProgramGenerator (void)
|
{
|
}
|
|
ProgramGenerator::~ProgramGenerator (void)
|
{
|
}
|
|
void ProgramGenerator::generate (
|
const ProgramParameters& programParams,
|
Shader& vertexShader,
|
Shader& fragmentShader)
|
{
|
// Random number generator
|
de::Random rnd(programParams.seed);
|
|
GeneratorState state(programParams, rnd);
|
|
// Fragment shader
|
{
|
ShaderGenerator shaderGen(state);
|
vector<ShaderInput*> emptyOutputs; // \note [pyry] gl_FragColor is added in ShaderGenerator
|
shaderGen.generate(programParams.fragmentParameters, fragmentShader, emptyOutputs);
|
}
|
|
// Vertex shader
|
{
|
ShaderGenerator shaderGen(state);
|
|
// Initialize outputs from fragment shader inputs
|
const vector<ShaderInput*>& fragmentInputs = fragmentShader.getInputs(); // \note gl_Position and dEQP_Position are handled in ShaderGenerator
|
|
shaderGen.generate(programParams.vertexParameters, vertexShader, fragmentInputs);
|
}
|
|
// Allocate samplers \todo [pyry] Randomize allocation.
|
{
|
const vector<ShaderInput*>& vertexUniforms = vertexShader.getUniforms();
|
const vector<ShaderInput*>& fragmentUniforms = fragmentShader.getUniforms();
|
vector<ShaderInput*> unifiedSamplers;
|
int curSamplerNdx = 0;
|
|
// Build unified sampler list.
|
for (vector<ShaderInput*>::const_iterator i = vertexUniforms.begin(); i != vertexUniforms.end(); i++)
|
{
|
if ((*i)->getVariable()->getType().isSampler())
|
unifiedSamplers.push_back(*i);
|
}
|
|
for (vector<ShaderInput*>::const_iterator i = fragmentUniforms.begin(); i != fragmentUniforms.end(); i++)
|
{
|
if ((*i)->getVariable()->getType().isSampler())
|
unifiedSamplers.push_back(*i);
|
}
|
|
// Assign sampler indices.
|
for (vector<ShaderInput*>::const_iterator i = unifiedSamplers.begin(); i != unifiedSamplers.end(); i++)
|
{
|
ShaderInput* input = *i;
|
if (input->getVariable()->getType().isSampler())
|
{
|
input->getValueRange().getMin() = curSamplerNdx;
|
input->getValueRange().getMax() = curSamplerNdx;
|
curSamplerNdx += 1;
|
}
|
}
|
}
|
}
|
|
} // rsg
|
