daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 1 | // |
Nicolas Capens | 01df23e | 2014-06-11 10:56:03 -0400 | [diff] [blame] | 2 | // Copyright (c) 2002-2014 The ANGLE Project Authors. All rights reserved. |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 3 | // Use of this source code is governed by a BSD-style license that can be |
| 4 | // found in the LICENSE file. |
| 5 | // |
| 6 | |
Jamie Madill | 6b9cb25 | 2013-10-17 10:45:47 -0400 | [diff] [blame] | 7 | #include "compiler/translator/ParseContext.h" |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 8 | |
| 9 | // |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 10 | // Use this class to carry along data from node to node in |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 11 | // the traversal |
| 12 | // |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 13 | class TConstTraverser : public TIntermTraverser |
| 14 | { |
| 15 | public: |
| 16 | TConstTraverser(ConstantUnion *cUnion, bool singleConstParam, |
| 17 | TOperator constructType, TInfoSink &sink, TType &t) |
alokp@chromium.org | b2dfd8e | 2010-08-09 22:28:19 +0000 | [diff] [blame] | 18 | : error(false), |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 19 | mIndex(0), |
| 20 | mUnionArray(cUnion), |
| 21 | mType(t), |
| 22 | mConstructorType(constructType), |
| 23 | mSingleConstantParam(singleConstParam), |
| 24 | mInfoSink(sink), |
| 25 | mSize(0), |
| 26 | mIsDiagonalMatrixInit(false), |
| 27 | mMatrixCols(0), |
| 28 | mMatrixRows(0) |
| 29 | { |
alokp@chromium.org | b2dfd8e | 2010-08-09 22:28:19 +0000 | [diff] [blame] | 30 | } |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 31 | |
alokp@chromium.org | b2dfd8e | 2010-08-09 22:28:19 +0000 | [diff] [blame] | 32 | bool error; |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 33 | |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 34 | protected: |
| 35 | void visitSymbol(TIntermSymbol *); |
| 36 | void visitConstantUnion(TIntermConstantUnion *); |
| 37 | bool visitBinary(Visit visit, TIntermBinary *); |
| 38 | bool visitUnary(Visit visit, TIntermUnary *); |
| 39 | bool visitSelection(Visit visit, TIntermSelection *); |
| 40 | bool visitAggregate(Visit visit, TIntermAggregate *); |
| 41 | bool visitLoop(Visit visit, TIntermLoop *); |
| 42 | bool visitBranch(Visit visit, TIntermBranch *); |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 43 | |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 44 | size_t mIndex; |
| 45 | ConstantUnion *mUnionArray; |
| 46 | TType mType; |
| 47 | TOperator mConstructorType; |
| 48 | bool mSingleConstantParam; |
| 49 | TInfoSink &mInfoSink; |
| 50 | size_t mSize; // size of the constructor ( 4 for vec4) |
| 51 | bool mIsDiagonalMatrixInit; |
| 52 | int mMatrixCols; // columns of the matrix |
| 53 | int mMatrixRows; // rows of the matrix |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 54 | }; |
| 55 | |
| 56 | // |
| 57 | // The rest of the file are the traversal functions. The last one |
| 58 | // is the one that starts the traversal. |
| 59 | // |
| 60 | // Return true from interior nodes to have the external traversal |
| 61 | // continue on to children. If you process children yourself, |
| 62 | // return false. |
| 63 | // |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 64 | void TConstTraverser::visitSymbol(TIntermSymbol *node) |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 65 | { |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 66 | mInfoSink.info.message(EPrefixInternalError, node->getLine(), |
| 67 | "Symbol Node found in constant constructor"); |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 68 | return; |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 69 | } |
| 70 | |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 71 | bool TConstTraverser::visitBinary(Visit visit, TIntermBinary *node) |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 72 | { |
| 73 | TQualifier qualifier = node->getType().getQualifier(); |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 74 | |
| 75 | if (qualifier != EvqConst) |
| 76 | { |
alokp@chromium.org | 4e4facd | 2010-06-02 15:21:22 +0000 | [diff] [blame] | 77 | TString buf; |
| 78 | buf.append("'constructor' : assigning non-constant to "); |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 79 | buf.append(mType.getCompleteString()); |
| 80 | mInfoSink.info.message(EPrefixError, node->getLine(), buf.c_str()); |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 81 | error = true; |
| 82 | return false; |
| 83 | } |
| 84 | |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 85 | mInfoSink.info.message(EPrefixInternalError, node->getLine(), |
| 86 | "Binary Node found in constant constructor"); |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 87 | return false; |
| 88 | } |
| 89 | |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 90 | bool TConstTraverser::visitUnary(Visit visit, TIntermUnary *node) |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 91 | { |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 92 | TString buf; |
| 93 | buf.append("'constructor' : assigning non-constant to "); |
| 94 | buf.append(mType.getCompleteString()); |
| 95 | mInfoSink.info.message(EPrefixError, node->getLine(), buf.c_str()); |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 96 | error = true; |
| 97 | return false; |
| 98 | } |
| 99 | |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 100 | bool TConstTraverser::visitAggregate(Visit visit, TIntermAggregate *node) |
| 101 | { |
| 102 | if (!node->isConstructor() && node->getOp() != EOpComma) |
| 103 | { |
| 104 | TString buf; |
| 105 | buf.append("'constructor' : assigning non-constant to "); |
| 106 | buf.append(mType.getCompleteString()); |
| 107 | mInfoSink.info.message(EPrefixError, node->getLine(), buf.c_str()); |
| 108 | error = true; |
| 109 | return false; |
| 110 | } |
| 111 | |
| 112 | if (node->getSequence()->size() == 0) |
| 113 | { |
| 114 | error = true; |
| 115 | return false; |
| 116 | } |
| 117 | |
| 118 | bool flag = node->getSequence()->size() == 1 && |
| 119 | (*node->getSequence())[0]->getAsTyped()->getAsConstantUnion(); |
| 120 | if (flag) |
| 121 | { |
| 122 | mSingleConstantParam = true; |
| 123 | mConstructorType = node->getOp(); |
| 124 | mSize = node->getType().getObjectSize(); |
| 125 | |
| 126 | if (node->getType().isMatrix()) |
| 127 | { |
| 128 | mIsDiagonalMatrixInit = true; |
| 129 | mMatrixCols = node->getType().getCols(); |
| 130 | mMatrixRows = node->getType().getRows(); |
| 131 | } |
| 132 | } |
| 133 | |
| 134 | for (TIntermSequence::iterator p = node->getSequence()->begin(); |
| 135 | p != node->getSequence()->end(); p++) |
| 136 | { |
| 137 | if (node->getOp() == EOpComma) |
| 138 | mIndex = 0; |
| 139 | (*p)->traverse(this); |
| 140 | } |
| 141 | if (flag) |
| 142 | { |
| 143 | mSingleConstantParam = false; |
| 144 | mConstructorType = EOpNull; |
| 145 | mSize = 0; |
| 146 | mIsDiagonalMatrixInit = false; |
| 147 | mMatrixCols = 0; |
| 148 | mMatrixRows = 0; |
| 149 | } |
| 150 | return false; |
| 151 | } |
| 152 | |
| 153 | bool TConstTraverser::visitSelection(Visit visit, TIntermSelection *node) |
| 154 | { |
| 155 | mInfoSink.info.message(EPrefixInternalError, node->getLine(), |
| 156 | "Selection Node found in constant constructor"); |
| 157 | error = true; |
| 158 | return false; |
| 159 | } |
| 160 | |
| 161 | void TConstTraverser::visitConstantUnion(TIntermConstantUnion *node) |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 162 | { |
shannon.woods%transgaming.com@gtempaccount.com | 6df256c | 2013-04-13 03:29:46 +0000 | [diff] [blame] | 163 | if (!node->getUnionArrayPointer()) |
| 164 | { |
| 165 | // The constant was not initialized, this should already have been logged |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 166 | ASSERT(mInfoSink.info.size() != 0); |
shannon.woods%transgaming.com@gtempaccount.com | 6df256c | 2013-04-13 03:29:46 +0000 | [diff] [blame] | 167 | return; |
| 168 | } |
| 169 | |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 170 | ConstantUnion *leftUnionArray = mUnionArray; |
| 171 | size_t instanceSize = mType.getObjectSize(); |
| 172 | TBasicType basicType = mType.getBasicType(); |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 173 | |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 174 | if (mIndex >= instanceSize) |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 175 | return; |
| 176 | |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 177 | if (!mSingleConstantParam) |
| 178 | { |
Jamie Madill | 94bf7f2 | 2013-07-08 13:31:15 -0400 | [diff] [blame] | 179 | size_t objectSize = node->getType().getObjectSize(); |
alokp@chromium.org | 6ff56fd | 2010-05-05 16:37:50 +0000 | [diff] [blame] | 180 | ConstantUnion *rightUnionArray = node->getUnionArrayPointer(); |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 181 | for (size_t i=0; i < objectSize; i++) |
| 182 | { |
| 183 | if (mIndex >= instanceSize) |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 184 | return; |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 185 | leftUnionArray[mIndex].cast(basicType, rightUnionArray[i]); |
| 186 | mIndex++; |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 187 | } |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 188 | } |
| 189 | else |
| 190 | { |
| 191 | size_t totalSize = mIndex + mSize; |
alokp@chromium.org | 6ff56fd | 2010-05-05 16:37:50 +0000 | [diff] [blame] | 192 | ConstantUnion *rightUnionArray = node->getUnionArrayPointer(); |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 193 | if (!mIsDiagonalMatrixInit) |
| 194 | { |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 195 | int count = 0; |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 196 | for (size_t i = mIndex; i < totalSize; i++) |
| 197 | { |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 198 | if (i >= instanceSize) |
| 199 | return; |
Nicolas Capens | 01df23e | 2014-06-11 10:56:03 -0400 | [diff] [blame] | 200 | leftUnionArray[i].cast(basicType, rightUnionArray[count]); |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 201 | mIndex++; |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 202 | if (node->getType().getObjectSize() > 1) |
| 203 | count++; |
| 204 | } |
shannonwoods@chromium.org | 9bd22fa | 2013-05-30 00:18:47 +0000 | [diff] [blame] | 205 | } |
| 206 | else |
| 207 | { |
| 208 | // for matrix diagonal constructors from a single scalar |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 209 | for (int i = 0, col = 0; col < mMatrixCols; col++) |
shannonwoods@chromium.org | 9bd22fa | 2013-05-30 00:18:47 +0000 | [diff] [blame] | 210 | { |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 211 | for (int row = 0; row < mMatrixRows; row++, i++) |
shannonwoods@chromium.org | 9bd22fa | 2013-05-30 00:18:47 +0000 | [diff] [blame] | 212 | { |
| 213 | if (col == row) |
| 214 | { |
Nicolas Capens | 01df23e | 2014-06-11 10:56:03 -0400 | [diff] [blame] | 215 | leftUnionArray[i].cast(basicType, rightUnionArray[0]); |
shannonwoods@chromium.org | 9bd22fa | 2013-05-30 00:18:47 +0000 | [diff] [blame] | 216 | } |
| 217 | else |
| 218 | { |
| 219 | leftUnionArray[i].setFConst(0.0f); |
| 220 | } |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 221 | mIndex++; |
shannonwoods@chromium.org | 9bd22fa | 2013-05-30 00:18:47 +0000 | [diff] [blame] | 222 | } |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 223 | } |
| 224 | } |
| 225 | } |
| 226 | } |
| 227 | |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 228 | bool TConstTraverser::visitLoop(Visit visit, TIntermLoop *node) |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 229 | { |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 230 | mInfoSink.info.message(EPrefixInternalError, node->getLine(), |
| 231 | "Loop Node found in constant constructor"); |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 232 | error = true; |
| 233 | return false; |
| 234 | } |
| 235 | |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 236 | bool TConstTraverser::visitBranch(Visit visit, TIntermBranch *node) |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 237 | { |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 238 | mInfoSink.info.message(EPrefixInternalError, node->getLine(), |
| 239 | "Branch Node found in constant constructor"); |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 240 | error = true; |
| 241 | return false; |
| 242 | } |
| 243 | |
| 244 | // |
| 245 | // This function is the one to call externally to start the traversal. |
| 246 | // Individual functions can be initialized to 0 to skip processing of that |
| 247 | // type of node. It's children will still be processed. |
| 248 | // |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 249 | bool TIntermediate::parseConstTree( |
| 250 | const TSourceLoc &line, TIntermNode *root, ConstantUnion *unionArray, |
| 251 | TOperator constructorType, TType t, bool singleConstantParam) |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 252 | { |
| 253 | if (root == 0) |
| 254 | return false; |
| 255 | |
Zhenyao Mo | e40d1e9 | 2014-07-16 17:40:36 -0700 | [diff] [blame] | 256 | TConstTraverser it(unionArray, singleConstantParam, constructorType, |
| 257 | mInfoSink, t); |
daniel@transgaming.com | 4f39fd9 | 2010-03-08 20:26:45 +0000 | [diff] [blame] | 258 | |
| 259 | root->traverse(&it); |
| 260 | if (it.error) |
| 261 | return true; |
| 262 | else |
| 263 | return false; |
| 264 | } |