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comparison: gfx/angle/src/compiler/VariablePacker.h
gfx/angle/src/compiler/VariablePacker.h
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
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| -1:000000000000 | 0:bd65f605d9ce |
|---|---|
| 1 // | |
| 2 // Copyright (c) 2002-2012 The ANGLE Project Authors. All rights reserved. | |
| 3 // Use of this source code is governed by a BSD-style license that can be | |
| 4 // found in the LICENSE file. | |
| 5 // | |
| 6 | |
| 7 #ifndef _VARIABLEPACKER_INCLUDED_ | |
| 8 #define _VARIABLEPACKER_INCLUDED_ | |
| 9 | |
| 10 #include <vector> | |
| 11 #include "compiler/ShHandle.h" | |
| 12 | |
| 13 class VariablePacker { | |
| 14 public: | |
| 15 // Returns true if the passed in variables pack in maxVectors following | |
| 16 // the packing rules from the GLSL 1.017 spec, Appendix A, section 7. | |
| 17 bool CheckVariablesWithinPackingLimits( | |
| 18 int maxVectors, | |
| 19 const TVariableInfoList& in_variables); | |
| 20 | |
| 21 // Gets how many components in a row a data type takes. | |
| 22 static int GetNumComponentsPerRow(ShDataType type); | |
| 23 | |
| 24 // Gets how many rows a data type takes. | |
| 25 static int GetNumRows(ShDataType type); | |
| 26 | |
| 27 private: | |
| 28 static const int kNumColumns = 4; | |
| 29 static const unsigned kColumnMask = (1 << kNumColumns) - 1; | |
| 30 | |
| 31 unsigned makeColumnFlags(int column, int numComponentsPerRow); | |
| 32 void fillColumns(int topRow, int numRows, int column, int numComponentsPerRow); | |
| 33 bool searchColumn(int column, int numRows, int* destRow, int* destSize); | |
| 34 | |
| 35 int topNonFullRow_; | |
| 36 int bottomNonFullRow_; | |
| 37 int maxRows_; | |
| 38 std::vector<unsigned> rows_; | |
| 39 }; | |
| 40 | |
| 41 #endif // _VARIABLEPACKER_INCLUDED_ |
