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Diffstat (limited to 'src/3rdparty/angle/src/compiler/translator/RecordConstantPrecision.h')
-rw-r--r-- | src/3rdparty/angle/src/compiler/translator/RecordConstantPrecision.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/compiler/translator/RecordConstantPrecision.h b/src/3rdparty/angle/src/compiler/translator/RecordConstantPrecision.h new file mode 100644 index 0000000000..2cd401b418 --- /dev/null +++ b/src/3rdparty/angle/src/compiler/translator/RecordConstantPrecision.h @@ -0,0 +1,23 @@ +// +// Copyright (c) 2002-2015 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. +// +// During parsing, all constant expressions are folded to constant union nodes. The expressions that have been +// folded may have had precision qualifiers, which should affect the precision of the consuming operation. +// If the folded constant union nodes are written to output as such they won't have any precision qualifiers, +// and their effect on the precision of the consuming operation is lost. +// +// RecordConstantPrecision is an AST traverser that inspects the precision qualifiers of constants and hoists +// the constants outside the containing expression as precision qualified named variables in case that is +// required for correct precision propagation. +// + +#ifndef COMPILER_TRANSLATOR_RECORDCONSTANTPRECISION_H_ +#define COMPILER_TRANSLATOR_RECORDCONSTANTPRECISION_H_ + +class TIntermNode; + +void RecordConstantPrecision(TIntermNode *root, unsigned int *temporaryIndex); + +#endif // COMPILER_TRANSLATOR_RECORDCONSTANTPRECISION_H_ |