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//
// Copyright (c) 2002-2012 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.
//
// Check whether variables fit within packing limits according to the packing rules from the GLSL ES
// 1.00.17 spec, Appendix A, section 7.
#ifndef COMPILER_TRANSLATOR_VARIABLEPACKER_H_
#define COMPILER_TRANSLATOR_VARIABLEPACKER_H_
#include <vector>
#include <GLSLANG/ShaderLang.h>
namespace sh
{
// Gets how many components in a row a data type takes.
int GetTypePackingComponentsPerRow(sh::GLenum type);
// Gets how many rows a data type takes.
int GetTypePackingRows(sh::GLenum type);
// Returns true if the passed in variables pack in maxVectors.
// T should be ShaderVariable or one of the subclasses of ShaderVariable.
template <typename T>
bool CheckVariablesInPackingLimits(unsigned int maxVectors, const std::vector<T> &variables);
} // namespace sh
#endif // COMPILER_TRANSLATOR_VARIABLEPACKER_H_
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