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author | Tor Arne Vestbø <tor.arne.vestbo@digia.com> | 2012-10-26 12:28:31 +0200 |
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committer | Tor Arne Vestbø <tor.arne.vestbo@digia.com> | 2012-10-26 12:28:53 +0200 |
commit | 6e5818f2bbc8443b9308252a5e1543e014ef439d (patch) | |
tree | 07922adee2f13e818b9439c8a0bdf871dda59039 /src/3rdparty/angle/src/compiler/VariablePacker.h | |
parent | 32aac0a1c009ee940920fd12f277180dd80b8eff (diff) | |
parent | deac55becd18efa4504eb686a1bb8081a5cd488a (diff) |
Merge remote-tracking branch 'gerrit/master' into newdocs
Change-Id: I10cf9f915c602c8e5a0e7d7c9e17b7bc5ca00640
Diffstat (limited to 'src/3rdparty/angle/src/compiler/VariablePacker.h')
-rw-r--r-- | src/3rdparty/angle/src/compiler/VariablePacker.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/compiler/VariablePacker.h b/src/3rdparty/angle/src/compiler/VariablePacker.h new file mode 100644 index 0000000000..8987066cc3 --- /dev/null +++ b/src/3rdparty/angle/src/compiler/VariablePacker.h @@ -0,0 +1,41 @@ +// +// 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. +// + +#ifndef _VARIABLEPACKER_INCLUDED_ +#define _VARIABLEPACKER_INCLUDED_ + +#include <vector> +#include "compiler/ShHandle.h" + +class VariablePacker { + public: + // Returns true if the passed in variables pack in maxVectors following + // the packing rules from the GLSL 1.017 spec, Appendix A, section 7. + bool CheckVariablesWithinPackingLimits( + int maxVectors, + const TVariableInfoList& in_variables); + + // Gets how many components in a row a data type takes. + static int GetNumComponentsPerRow(ShDataType type); + + // Gets how many rows a data type takes. + static int GetNumRows(ShDataType type); + + private: + static const int kNumColumns = 4; + static const unsigned kColumnMask = (1 << kNumColumns) - 1; + + unsigned makeColumnFlags(int column, int numComponentsPerRow); + void fillColumns(int topRow, int numRows, int column, int numComponentsPerRow); + bool searchColumn(int column, int numRows, int* destRow, int* destSize); + + int topNonFullRow_; + int bottomNonFullRow_; + int maxRows_; + std::vector<unsigned> rows_; +}; + +#endif // _VARIABLEPACKER_INCLUDED_ |