gfx/angle/src/compiler/VariablePacker.h@97036ab72558 (annotated)
gfx/angle/src/compiler/VariablePacker.h
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | // |
| michael@0 | 2 | // Copyright (c) 2002-2012 The ANGLE Project Authors. All rights reserved. |
| michael@0 | 3 | // Use of this source code is governed by a BSD-style license that can be |
| michael@0 | 4 | // found in the LICENSE file. |
| michael@0 | 5 | // |
| michael@0 | 6 | |
| michael@0 | 7 | #ifndef _VARIABLEPACKER_INCLUDED_ |
| michael@0 | 8 | #define _VARIABLEPACKER_INCLUDED_ |
| michael@0 | 9 | |
| michael@0 | 10 | #include <vector> |
| michael@0 | 11 | #include "compiler/ShHandle.h" |
| michael@0 | 12 | |
| michael@0 | 13 | class VariablePacker { |
| michael@0 | 14 | public: |
| michael@0 | 15 | // Returns true if the passed in variables pack in maxVectors following |
| michael@0 | 16 | // the packing rules from the GLSL 1.017 spec, Appendix A, section 7. |
| michael@0 | 17 | bool CheckVariablesWithinPackingLimits( |
| michael@0 | 18 | int maxVectors, |
| michael@0 | 19 | const TVariableInfoList& in_variables); |
| michael@0 | 20 | |
| michael@0 | 21 | // Gets how many components in a row a data type takes. |
| michael@0 | 22 | static int GetNumComponentsPerRow(ShDataType type); |
| michael@0 | 23 | |
| michael@0 | 24 | // Gets how many rows a data type takes. |
| michael@0 | 25 | static int GetNumRows(ShDataType type); |
| michael@0 | 26 | |
| michael@0 | 27 | private: |
| michael@0 | 28 | static const int kNumColumns = 4; |
| michael@0 | 29 | static const unsigned kColumnMask = (1 << kNumColumns) - 1; |
| michael@0 | 30 | |
| michael@0 | 31 | unsigned makeColumnFlags(int column, int numComponentsPerRow); |
| michael@0 | 32 | void fillColumns(int topRow, int numRows, int column, int numComponentsPerRow); |
| michael@0 | 33 | bool searchColumn(int column, int numRows, int* destRow, int* destSize); |
| michael@0 | 34 | |
| michael@0 | 35 | int topNonFullRow_; |
| michael@0 | 36 | int bottomNonFullRow_; |
| michael@0 | 37 | int maxRows_; |
| michael@0 | 38 | std::vector<unsigned> rows_; |
| michael@0 | 39 | }; |
| michael@0 | 40 | |
| michael@0 | 41 | #endif // _VARIABLEPACKER_INCLUDED_ |
