| // |
| // 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_ |
