| OLD | NEW |
|---|
| (Empty) |
| 1 /* libs/graphics/animator/SkScript.h | |
| 2 ** | |
| 3 ** Copyright 2006, The Android Open Source Project | |
| 4 ** | |
| 5 ** Licensed under the Apache License, Version 2.0 (the "License"); | |
| 6 ** you may not use this file except in compliance with the License. | |
| 7 ** You may obtain a copy of the License at | |
| 8 ** | |
| 9 ** http://www.apache.org/licenses/LICENSE-2.0 | |
| 10 ** | |
| 11 ** Unless required by applicable law or agreed to in writing, software | |
| 12 ** distributed under the License is distributed on an "AS IS" BASIS, | |
| 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 14 ** See the License for the specific language governing permissions and | |
| 15 ** limitations under the License. | |
| 16 */ | |
| 17 | |
| 18 #ifndef SkScript_DEFINED | |
| 19 #define SkScript_DEFINED | |
| 20 | |
| 21 #include "SkOperand.h" | |
| 22 #include "SkIntArray.h" | |
| 23 #include "SkTDict.h" | |
| 24 #include "SkTDStack.h" | |
| 25 | |
| 26 class SkAnimateMaker; | |
| 27 | |
| 28 class SkScriptEngine { | |
| 29 public: | |
| 30 enum Error { | |
| 31 kNoError, | |
| 32 kArrayIndexOutOfBounds, | |
| 33 kCouldNotFindReferencedID, | |
| 34 kDotOperatorExpectsObject, | |
| 35 kErrorInArrrayIndex, | |
| 36 kErrorInFunctionParameters, | |
| 37 kExpectedArray, | |
| 38 kExpectedBooleanExpression, | |
| 39 kExpectedFieldName, | |
| 40 kExpectedHex, | |
| 41 kExpectedIntForConditionOperator, | |
| 42 kExpectedNumber, | |
| 43 kExpectedNumberForArrayIndex, | |
| 44 kExpectedOperator, | |
| 45 kExpectedToken, | |
| 46 kExpectedTokenBeforeDotOperator, | |
| 47 kExpectedValue, | |
| 48 kHandleMemberFailed, | |
| 49 kHandleMemberFunctionFailed, | |
| 50 kHandleUnboxFailed, | |
| 51 kIndexOutOfRange, | |
| 52 kMismatchedArrayBrace, | |
| 53 kMismatchedBrackets, | |
| 54 kNoFunctionHandlerFound, | |
| 55 kPrematureEnd, | |
| 56 kTooManyParameters, | |
| 57 kTypeConversionFailed, | |
| 58 kUnterminatedString | |
| 59 }; | |
| 60 | |
| 61 enum SkOpType { | |
| 62 kNoType, | |
| 63 kInt = 1, | |
| 64 kScalar = 2, | |
| 65 kString = 4, | |
| 66 kArray = 8, | |
| 67 kObject = 16 | |
| 68 // kStruct = 32 | |
| 69 }; | |
| 70 | |
| 71 typedef bool (*_boxCallBack)(void* userStorage, SkScriptValue* result); | |
| 72 typedef bool (*_functionCallBack)(const char* func, size_t len, SkTDArray<Sk
ScriptValue>& params, | |
| 73 void* userStorage, SkScriptValue* result); | |
| 74 typedef bool (*_memberCallBack)(const char* member, size_t len, void* object
, | |
| 75 void* userStorage, SkScriptValue* result); | |
| 76 typedef bool (*_memberFunctionCallBack)(const char* member, size_t len, void
* object, | |
| 77 SkTDArray<SkScriptValue>& params, void* userStorage, SkScriptValue* resu
lt); | |
| 78 // typedef bool (*_objectToStringCallBack)(void* object, void* userStorage, SkS
criptValue* result); | |
| 79 typedef bool (*_propertyCallBack)(const char* prop, size_t len, void* userSt
orage, SkScriptValue* result); | |
| 80 typedef bool (*_unboxCallBack)(void* userStorage, SkScriptValue* result); | |
| 81 SkScriptEngine(SkOpType returnType); | |
| 82 ~SkScriptEngine(); | |
| 83 void boxCallBack(_boxCallBack func, void* userStorage); | |
| 84 bool convertTo(SkDisplayTypes , SkScriptValue* ); | |
| 85 bool evaluateScript(const char** script, SkScriptValue* value); | |
| 86 void forget(SkTypedArray* array); | |
| 87 void functionCallBack(_functionCallBack func, void* userStorage); | |
| 88 Error getError() const { return fError; } | |
| 89 #ifdef SK_DEBUG | |
| 90 bool getErrorString(SkString* err) const; | |
| 91 #endif | |
| 92 void memberCallBack(_memberCallBack , void* userStorage); | |
| 93 void memberFunctionCallBack(_memberFunctionCallBack , void* userStorage); | |
| 94 // void objectToStringCallBack(_objectToStringCallBack , void* userStorage); | |
| 95 void propertyCallBack(_propertyCallBack prop, void* userStorage); | |
| 96 void track(SkTypedArray* array); | |
| 97 void track(SkString* string); | |
| 98 void unboxCallBack(_unboxCallBack func, void* userStorage); | |
| 99 static bool ConvertTo(SkScriptEngine* , SkDisplayTypes toType, SkScriptValue
* value); | |
| 100 static SkScalar IntToScalar(int32_t ); | |
| 101 static SkDisplayTypes ToDisplayType(SkOpType type); | |
| 102 static SkOpType ToOpType(SkDisplayTypes type); | |
| 103 static bool ValueToString(SkScriptValue value, SkString* string); | |
| 104 | |
| 105 enum CallBackType { | |
| 106 kBox, | |
| 107 kFunction, | |
| 108 kMember, | |
| 109 kMemberFunction, | |
| 110 // kObjectToString, | |
| 111 kProperty, | |
| 112 kUnbox | |
| 113 }; | |
| 114 | |
| 115 struct UserCallBack { | |
| 116 CallBackType fCallBackType; | |
| 117 void* fUserStorage; | |
| 118 union { | |
| 119 _boxCallBack fBoxCallBack; | |
| 120 _functionCallBack fFunctionCallBack; | |
| 121 _memberCallBack fMemberCallBack; | |
| 122 _memberFunctionCallBack fMemberFunctionCallBack; | |
| 123 // _objectToStringCallBack fObjectToStringCallBack; | |
| 124 _propertyCallBack fPropertyCallBack; | |
| 125 _unboxCallBack fUnboxCallBack; | |
| 126 }; | |
| 127 }; | |
| 128 | |
| 129 enum SkOp { | |
| 130 kUnassigned, | |
| 131 kAdd, | |
| 132 kAddInt = kAdd, | |
| 133 kAddScalar, | |
| 134 kAddString, // string concat | |
| 135 kArrayOp, | |
| 136 kBitAnd, | |
| 137 kBitNot, | |
| 138 kBitOr, | |
| 139 kDivide, | |
| 140 kDivideInt = kDivide, | |
| 141 kDivideScalar, | |
| 142 kElse, | |
| 143 kEqual, | |
| 144 kEqualInt = kEqual, | |
| 145 kEqualScalar, | |
| 146 kEqualString, | |
| 147 kFlipOps, | |
| 148 kGreaterEqual, | |
| 149 kGreaterEqualInt = kGreaterEqual, | |
| 150 kGreaterEqualScalar, | |
| 151 kGreaterEqualString, | |
| 152 kIf, | |
| 153 kLogicalAnd, | |
| 154 kLogicalNot, | |
| 155 kLogicalOr, | |
| 156 kMinus, | |
| 157 kMinusInt = kMinus, | |
| 158 kMinusScalar, | |
| 159 kModulo, | |
| 160 kModuloInt = kModulo, | |
| 161 kModuloScalar, | |
| 162 kMultiply, | |
| 163 kMultiplyInt = kMultiply, | |
| 164 kMultiplyScalar, | |
| 165 kParen, | |
| 166 kShiftLeft, | |
| 167 kShiftRight, // signed | |
| 168 kSubtract, | |
| 169 kSubtractInt = kSubtract, | |
| 170 kSubtractScalar, | |
| 171 kXor, | |
| 172 kArtificialOp = 0x40 | |
| 173 }; | |
| 174 | |
| 175 enum SkOpBias { | |
| 176 kNoBias, | |
| 177 kTowardsNumber = 0, | |
| 178 kTowardsString | |
| 179 }; | |
| 180 | |
| 181 protected: | |
| 182 | |
| 183 struct SkOperatorAttributes { | |
| 184 unsigned int fLeftType : 3; // SkOpType, but only lower values | |
| 185 unsigned int fRightType : 3; // SkOpType, but only lower values | |
| 186 SkOpBias fBias : 1; | |
| 187 }; | |
| 188 | |
| 189 struct SkSuppress { // !!! could be compressed to a long | |
| 190 SkOp fOperator; // operand which enabled suppression | |
| 191 int fOpStackDepth; // depth when suppression operator was found | |
| 192 SkBool8 fSuppress; // set if suppression happens now, as opposed to late
r | |
| 193 SkBool8 fElse; // set on the : half of ? : | |
| 194 }; | |
| 195 | |
| 196 static const SkOperatorAttributes gOpAttributes[]; | |
| 197 static const signed char gPrecedence[]; | |
| 198 int arithmeticOp(char ch, char nextChar, bool lastPush); | |
| 199 void commonCallBack(CallBackType type, UserCallBack& callBack, void* userSto
rage); | |
| 200 bool convertParams(SkTDArray<SkScriptValue>&, const SkFunctionParamType* , | |
| 201 int paramTypeCount); | |
| 202 void convertToString(SkOperand& operand, SkDisplayTypes type) { | |
| 203 SkScriptValue scriptValue; | |
| 204 scriptValue.fOperand = operand; | |
| 205 scriptValue.fType = type; | |
| 206 convertTo(SkType_String, &scriptValue); | |
| 207 operand = scriptValue.fOperand; | |
| 208 } | |
| 209 bool evaluateDot(const char*& script, bool suppressed); | |
| 210 bool evaluateDotParam(const char*& script, bool suppressed, const char* fiel
d, size_t fieldLength); | |
| 211 bool functionParams(const char** scriptPtr, SkTDArray<SkScriptValue>& params
); | |
| 212 bool handleArrayIndexer(const char** scriptPtr, bool suppressed); | |
| 213 bool handleBox(SkScriptValue* value); | |
| 214 bool handleFunction(const char** scriptPtr, bool suppressed); | |
| 215 bool handleMember(const char* field, size_t len, void* object); | |
| 216 bool handleMemberFunction(const char* field, size_t len, void* object, SkTDA
rray<SkScriptValue>& params); | |
| 217 // bool handleObjectToString(void* object); | |
| 218 bool handleProperty(bool suppressed); | |
| 219 bool handleUnbox(SkScriptValue* scriptValue); | |
| 220 bool innerScript(const char** scriptPtr, SkScriptValue* value); | |
| 221 int logicalOp(char ch, char nextChar); | |
| 222 Error opError(); | |
| 223 bool processOp(); | |
| 224 void setAnimateMaker(SkAnimateMaker* maker) { fMaker = maker; } | |
| 225 bool setError(Error , const char* pos); | |
| 226 enum SkBraceStyle { | |
| 227 // kStructBrace, | |
| 228 kArrayBrace, | |
| 229 kFunctionBrace | |
| 230 }; | |
| 231 | |
| 232 #if 0 | |
| 233 SkIntArray(SkBraceStyle) fBraceStack; // curly, square, function paren | |
| 234 SkIntArray(SkOp) fOpStack; | |
| 235 SkIntArray(SkOpType) fTypeStack; | |
| 236 SkTDOperandArray fOperandStack; | |
| 237 SkTDArray<SkSuppress> fSuppressStack; | |
| 238 #else | |
| 239 SkTDStack<SkBraceStyle> fBraceStack; // curly, square, function paren | |
| 240 SkTDStack<SkOp> fOpStack; | |
| 241 SkTDStack<SkOpType> fTypeStack; | |
| 242 SkTDStack<SkOperand> fOperandStack; | |
| 243 SkTDStack<SkSuppress> fSuppressStack; | |
| 244 #endif | |
| 245 SkAnimateMaker* fMaker; | |
| 246 SkTDTypedArrayArray fTrackArray; | |
| 247 SkTDStringArray fTrackString; | |
| 248 const char* fToken; // one-deep stack | |
| 249 size_t fTokenLength; | |
| 250 SkTDArray<UserCallBack> fUserCallBacks; | |
| 251 SkOpType fReturnType; | |
| 252 Error fError; | |
| 253 int fErrorPosition; | |
| 254 private: | |
| 255 friend class SkTypedArray; | |
| 256 #ifdef SK_SUPPORT_UNITTEST | |
| 257 public: | |
| 258 static void UnitTest(); | |
| 259 #endif | |
| 260 }; | |
| 261 | |
| 262 #ifdef SK_SUPPORT_UNITTEST | |
| 263 | |
| 264 struct SkScriptNAnswer { | |
| 265 const char* fScript; | |
| 266 SkDisplayTypes fType; | |
| 267 int32_t fIntAnswer; | |
| 268 SkScalar fScalarAnswer; | |
| 269 const char* fStringAnswer; | |
| 270 }; | |
| 271 | |
| 272 #endif | |
| 273 | |
| 274 #endif // SkScript_DEFINED | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 113827:
Remove the remainder of the skia source code from the Chromium repo.... (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/