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      1 //
      2 // Copyright (c) 2012 The ANGLE Project Authors. All rights reserved.
      3 // Use of this source code is governed by a BSD-style license that can be
      4 // found in the LICENSE file.
      5 //
      6 
      7 #pragma warning(disable: 4718)
      8 
      9 #include "compiler/translator/depgraph/DependencyGraph.h"
     10 #include "compiler/translator/depgraph/DependencyGraphBuilder.h"
     11 
     12 TDependencyGraph::TDependencyGraph(TIntermNode* intermNode)
     13 {
     14     TDependencyGraphBuilder::build(intermNode, this);
     15 }
     16 
     17 TDependencyGraph::~TDependencyGraph()
     18 {
     19     for (TGraphNodeVector::const_iterator iter = mAllNodes.begin(); iter != mAllNodes.end(); ++iter)
     20     {
     21         TGraphNode* node = *iter;
     22         delete node;
     23     }
     24 }
     25 
     26 TGraphArgument* TDependencyGraph::createArgument(TIntermAggregate* intermFunctionCall,
     27                                                  int argumentNumber)
     28 {
     29     TGraphArgument* argument = new TGraphArgument(intermFunctionCall, argumentNumber);
     30     mAllNodes.push_back(argument);
     31     return argument;
     32 }
     33 
     34 TGraphFunctionCall* TDependencyGraph::createFunctionCall(TIntermAggregate* intermFunctionCall)
     35 {
     36     TGraphFunctionCall* functionCall = new TGraphFunctionCall(intermFunctionCall);
     37     mAllNodes.push_back(functionCall);
     38     if (functionCall->getIntermFunctionCall()->isUserDefined())
     39         mUserDefinedFunctionCalls.push_back(functionCall);
     40     return functionCall;
     41 }
     42 
     43 TGraphSymbol* TDependencyGraph::getOrCreateSymbol(TIntermSymbol* intermSymbol)
     44 {
     45     TSymbolIdMap::const_iterator iter = mSymbolIdMap.find(intermSymbol->getId());
     46 
     47     TGraphSymbol* symbol = NULL;
     48 
     49     if (iter != mSymbolIdMap.end()) {
     50         TSymbolIdPair pair = *iter;
     51         symbol = pair.second;
     52     } else {
     53         symbol = new TGraphSymbol(intermSymbol);
     54         mAllNodes.push_back(symbol);
     55 
     56         TSymbolIdPair pair(intermSymbol->getId(), symbol);
     57         mSymbolIdMap.insert(pair);
     58 
     59         // We save all sampler symbols in a collection, so we can start graph traversals from them quickly.
     60         if (IsSampler(intermSymbol->getBasicType()))
     61             mSamplerSymbols.push_back(symbol);
     62     }
     63 
     64     return symbol;
     65 }
     66 
     67 TGraphSelection* TDependencyGraph::createSelection(TIntermSelection* intermSelection)
     68 {
     69     TGraphSelection* selection = new TGraphSelection(intermSelection);
     70     mAllNodes.push_back(selection);
     71     return selection;
     72 }
     73 
     74 TGraphLoop* TDependencyGraph::createLoop(TIntermLoop* intermLoop)
     75 {
     76     TGraphLoop* loop = new TGraphLoop(intermLoop);
     77     mAllNodes.push_back(loop);
     78     return loop;
     79 }
     80 
     81 TGraphLogicalOp* TDependencyGraph::createLogicalOp(TIntermBinary* intermLogicalOp)
     82 {
     83     TGraphLogicalOp* logicalOp = new TGraphLogicalOp(intermLogicalOp);
     84     mAllNodes.push_back(logicalOp);
     85     return logicalOp;
     86 }
     87 
     88 const char* TGraphLogicalOp::getOpString() const
     89 {
     90     const char* opString = NULL;
     91     switch (getIntermLogicalOp()->getOp()) {
     92         case EOpLogicalAnd: opString = "and"; break;
     93         case EOpLogicalOr: opString = "or"; break;
     94         default: opString = "unknown"; break;
     95     }
     96     return opString;
     97 }
     98