framework/randomshaders/rsgParameters.hpp

#ifndef _RSGPARAMETERS_HPP
#define _RSGPARAMETERS_HPP
/*-------------------------------------------------------------------------
 * 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 generator parameters.
 *//*--------------------------------------------------------------------*/

#include "rsgDefs.hpp"

#include <set>
#include <string>
#include <vector>

namespace rsg
{

enum
{
	NUM_RESERVED_SHADER_INPUTS = 1 // Taken by dEQP_Position
};

enum Version
{
	VERSION_100,		//!< GLSL ES 1.0
	VERSION_300,		//!< GLSL ES 3.0

	VERSION_LAST
};

class ShaderParameters
{
public:
	ShaderParameters (void)
		: randomize						(false)
		, maxStatementDepth				(2)
		, maxStatementsPerBlock			(10)
		, maxExpressionDepth			(5)
		, maxCombinedVariableScalars	(32)
		, maxUniformScalars				(512)
		, maxInputVariables				(8)
		, texLookupBaseWeight			(0.0f)
		, maxSamplers					(8)
		, useTexture2D					(false)
		, useTextureCube				(false)
	{
	}

	bool					randomize;					//!< If not enabled, only simple passthrough will be generated
	int						maxStatementDepth;
	int						maxStatementsPerBlock;
	int						maxExpressionDepth;
	int						maxCombinedVariableScalars;
	int						maxUniformScalars;
	int						maxInputVariables;

	float					texLookupBaseWeight;
	int						maxSamplers;
	bool					useTexture2D;
	bool					useTextureCube;
};

class ProgramParameters
{
public:
	ProgramParameters (void)
		: seed								(0)
		, version							(VERSION_100)
		, declarationStatementBaseWeight	(1.0f)
		, useScalarConversions				(false)
		, useSwizzle						(false)
		, useComparisonOps					(false)
		, useConditionals					(false)
		, trigonometricBaseWeight			(0.0f)
		, exponentialBaseWeight				(0.0f)
	{
	}

	deUint32				seed;
	Version					version;
	ShaderParameters		vertexParameters;
	ShaderParameters		fragmentParameters;

	bool					declarationStatementBaseWeight;
	bool					useScalarConversions;
	bool					useSwizzle;
	bool					useComparisonOps;
	bool					useConditionals;

	float					trigonometricBaseWeight;
	float					exponentialBaseWeight;
};

} // rsg

#endif // _RSGPARAMETERS_HPP