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Diffstat (limited to 'src/3rdparty/angle/src/compiler/DetectDiscontinuity.h')
-rw-r--r-- | src/3rdparty/angle/src/compiler/DetectDiscontinuity.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/compiler/DetectDiscontinuity.h b/src/3rdparty/angle/src/compiler/DetectDiscontinuity.h new file mode 100644 index 0000000000..8bda4c3dea --- /dev/null +++ b/src/3rdparty/angle/src/compiler/DetectDiscontinuity.h @@ -0,0 +1,50 @@ +// +// Copyright (c) 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. +// +// Contains analysis utilities for dealing with HLSL's lack of support for +// the use of intrinsic functions which (implicitly or explicitly) compute +// gradients of functions with discontinuities. +// + +#ifndef COMPILER_DETECTDISCONTINUITY_H_ +#define COMPILER_DETECTDISCONTINUITY_H_ + +#include "compiler/intermediate.h" + +namespace sh +{ +// Checks whether a loop can run for a variable number of iterations +class DetectLoopDiscontinuity : public TIntermTraverser +{ + public: + bool traverse(TIntermNode *node); + + protected: + bool visitBranch(Visit visit, TIntermBranch *node); + bool visitAggregate(Visit visit, TIntermAggregate *node); + + bool mLoopDiscontinuity; +}; + +bool containsLoopDiscontinuity(TIntermNode *node); + +// Checks for intrinsic functions which compute gradients +class DetectGradientOperation : public TIntermTraverser +{ + public: + bool traverse(TIntermNode *node); + + protected: + bool visitUnary(Visit visit, TIntermUnary *node); + bool visitAggregate(Visit visit, TIntermAggregate *node); + + bool mGradientOperation; +}; + +bool containsGradientOperation(TIntermNode *node); + +} + +#endif // COMPILER_DETECTDISCONTINUITY_H_ |