michael@0: //
michael@0: // Copyright (c) 2012 The ANGLE Project Authors. All rights reserved.
michael@0: // Use of this source code is governed by a BSD-style license that can be
michael@0: // found in the LICENSE file.
michael@0: //
michael@0: 
michael@0: #ifndef COMPILER_TIMING_RESTRICT_FRAGMENT_SHADER_TIMING_H_
michael@0: #define COMPILER_TIMING_RESTRICT_FRAGMENT_SHADER_TIMING_H_
michael@0: 
michael@0: #include "GLSLANG/ShaderLang.h"
michael@0: 
michael@0: #include "compiler/intermediate.h"
michael@0: #include "compiler/depgraph/DependencyGraph.h"
michael@0: 
michael@0: class TInfoSinkBase;
michael@0: 
michael@0: class RestrictFragmentShaderTiming : TDependencyGraphTraverser {
michael@0: public:
michael@0:     RestrictFragmentShaderTiming(TInfoSinkBase& sink);
michael@0:     void enforceRestrictions(const TDependencyGraph& graph);
michael@0:     int numErrors() const { return mNumErrors; }
michael@0: 
michael@0:     virtual void visitArgument(TGraphArgument* parameter);
michael@0:     virtual void visitSelection(TGraphSelection* selection);
michael@0:     virtual void visitLoop(TGraphLoop* loop);
michael@0:     virtual void visitLogicalOp(TGraphLogicalOp* logicalOp);
michael@0: 
michael@0: private:
michael@0:     void beginError(const TIntermNode* node);
michael@0:     void validateUserDefinedFunctionCallUsage(const TDependencyGraph& graph);
michael@0:     bool isSamplingOp(const TIntermAggregate* intermFunctionCall) const;
michael@0: 
michael@0:     TInfoSinkBase& mSink;
michael@0:     int mNumErrors;
michael@0: 
michael@0:     typedef std::set<TString> StringSet;
michael@0:     StringSet mSamplingOps;
michael@0: };
michael@0: 
michael@0: #endif  // COMPILER_TIMING_RESTRICT_FRAGMENT_SHADER_TIMING_H_