1 2 /* 3 * Copyright 2006 The Android Open Source Project 4 * 5 * Use of this source code is governed by a BSD-style license that can be 6 * found in the LICENSE file. 7 */ 8 9 10 #ifndef SkMemberInfo_DEFINED 11 #define SkMemberInfo_DEFINED 12 13 #if defined SK_BUILD_CONDENSED 14 #define SK_USE_CONDENSED_INFO 0 15 #endif 16 17 #include "SkDisplayType.h" 18 #include "SkScript.h" 19 #include "SkString.h" 20 #include "SkIntArray.h" 21 #include <utility> 22 23 class SkAnimateMaker; 24 class SkDisplayable; 25 class SkScriptEngine; 26 27 // temporary hacks until name change is more complete 28 #define SkFloat SkScalar 29 #define SkInt SkS32 30 31 struct SkMemberInfo { 32 //!!! alternative: 33 // if fCount == 0, record is member property 34 // then fType can be type, so caller doesn't have to check 35 #if SK_USE_CONDENSED_INFO == 0 36 const char* fName; // may be nullptr for anonymous functions 37 size_t fOffset; // if negative, is index into member pointer table (for properties and functions) 38 SkDisplayTypes fType; 39 int fCount; // for properties, actual type (count is always assumed to be 1) 40 #else 41 unsigned char fName; 42 signed char fOffset; 43 unsigned char fType; 44 signed char fCount; 45 #endif 46 SkDisplayTypes arrayType() const { 47 SkASSERT(fType == SkType_Array); 48 return (SkDisplayTypes) fCount; // hack, but worth it? 49 } 50 int functionIndex() const { 51 SkASSERT(fType == SkType_MemberFunction); 52 return (signed) fOffset > 0 ? -1 + (int) fOffset : -1 - (int) fOffset; 53 } 54 bool getArrayValue(const SkDisplayable* displayable, int index, SkOperand* value) const; 55 int getCount() const { 56 return fType == SkType_MemberProperty || fType == SkType_Array || 57 fType == SkType_MemberFunction ? 1 : fCount; 58 } 59 const SkMemberInfo* getInherited() const; 60 size_t getSize(const SkDisplayable* ) const; 61 void getString(const SkDisplayable* , SkString** string) const; 62 SkDisplayTypes getType() const { 63 return fType == SkType_MemberProperty || fType == SkType_Array || 64 fType == SkType_MemberFunction ? (SkDisplayTypes) fCount : (SkDisplayTypes) fType; 65 } 66 void getValue(const SkDisplayable* , SkOperand values[], int count) const; 67 bool isEnum() const; 68 const char* mapEnums(const char* match, int* value) const; 69 void* memberData(const SkDisplayable* displayable) const { 70 SkASSERT(fType != SkType_MemberProperty && fType != SkType_MemberFunction); 71 return (void*) ((const char*) displayable + fOffset); 72 } 73 int propertyIndex() const { 74 SkASSERT(fType == SkType_MemberProperty); 75 return (signed) fOffset > 0 ? -1 + (int) fOffset : -1 - (int) fOffset; 76 } 77 SkDisplayTypes propertyType() const { 78 SkASSERT(fType == SkType_MemberProperty || fType == SkType_Array); 79 return (SkDisplayTypes) fCount; // hack, but worth it? 80 } 81 void setMemberData(SkDisplayable* displayable, const void* child, size_t size) const { 82 SkASSERT(fType != SkType_MemberProperty && fType != SkType_MemberFunction); 83 memcpy((char*) displayable + fOffset, child, size); 84 } 85 void setString(SkDisplayable* , SkString* ) const; 86 void setValue(SkDisplayable* , const SkOperand values[], int count) const; 87 bool setValue(SkAnimateMaker& , SkTDOperandArray* storage, 88 int storageOffset, int maxStorage, SkDisplayable* , 89 SkDisplayTypes outType, const char value[], size_t len) const; 90 bool setValue(SkAnimateMaker& , SkTDOperandArray* storage, 91 int storageOffset, int maxStorage, SkDisplayable* , 92 SkDisplayTypes outType, SkString& str) const; 93 // void setValue(SkDisplayable* , const char value[], const char name[]) const; 94 bool writeValue(SkDisplayable* displayable, SkTDOperandArray* arrayStorage, 95 int storageOffset, int maxStorage, void* untypedStorage, SkDisplayTypes outType, 96 SkScriptValue& scriptValue) const; 97 #if SK_USE_CONDENSED_INFO == 0 98 static const SkMemberInfo* Find(const SkMemberInfo [], int count, int* index); 99 static const SkMemberInfo* Find(const SkMemberInfo [], int count, const char** name); 100 #else 101 static const SkMemberInfo* Find(SkDisplayTypes type, int* index); 102 static const SkMemberInfo* Find(SkDisplayTypes type, const char** name); 103 #endif 104 static size_t GetSize(SkDisplayTypes type); // size of simple types only 105 // static bool SetValue(void* value, const char* name, SkDisplayTypes , int count); 106 }; 107 108 #ifndef SK_OFFSETOF 109 // This is offsetof for types which are not standard layout. 110 #define SK_OFFSETOF(type, field) (size_t)((char*)&(((type*)1024)->field) - (char*)1024) 111 #endif 112 113 #define SK_MEMBER(_member, _type) \ 114 { #_member, SK_OFFSETOF(BASE_CLASS, _member), SkType_##_type, \ 115 sizeof(std::declval<BASE_CLASS>()._member) / sizeof(SkScalar) } 116 117 #define SK_MEMBER_ALIAS(_member, _alias, _type) \ 118 { #_member, SK_OFFSETOF(BASE_CLASS, _alias), SkType_##_type, \ 119 sizeof(std::declval<BASE_CLASS>()._alias) / sizeof(SkScalar) } 120 121 #define SK_MEMBER_ARRAY(_member, _type) \ 122 { #_member, SK_OFFSETOF(BASE_CLASS, _member), SkType_Array, \ 123 (int) SkType_##_type } 124 125 #define SK_MEMBER_INHERITED \ 126 { (const char*) INHERITED::fInfo, 0, SkType_BaseClassInfo, INHERITED::fInfoCount } 127 128 // #define SK_MEMBER_KEY_TYPE(_member, _type) 129 // {#_member, (size_t) -1, SkType_##_type, 0} 130 131 #define SK_FUNCTION(_member) \ 132 k_##_member##Function 133 134 #define SK_PROPERTY(_member) \ 135 k_##_member##Property 136 137 #define SK_MEMBER_DYNAMIC_FUNCTION(_member, _type) \ 138 {#_member, (size_t) (+1 + SK_FUNCTION(_member)), SkType_MemberFunction, \ 139 (int) SkType_##_type } 140 141 #define SK_MEMBER_DYNAMIC_PROPERTY(_member, _type) \ 142 {#_member, (size_t) (1 + SK_PROPERTY(_member)), SkType_MemberProperty, \ 143 (int) SkType_##_type } 144 145 #define SK_MEMBER_FUNCTION(_member, _type) \ 146 {#_member, (size_t) (-1 - SK_FUNCTION(_member)), SkType_MemberFunction, \ 147 (int) SkType_##_type } 148 149 #define SK_MEMBER_PROPERTY(_member, _type) \ 150 {#_member, (size_t) (-1 - SK_PROPERTY(_member)), SkType_MemberProperty, \ 151 (int) SkType_##_type } 152 153 #if SK_USE_CONDENSED_INFO == 0 154 155 #define DECLARE_PRIVATE_MEMBER_INFO(_type) \ 156 public: \ 157 static const SkMemberInfo fInfo[]; \ 158 static const int fInfoCount; \ 159 const SkMemberInfo* getMember(int index) override; \ 160 const SkMemberInfo* getMember(const char name[]) override; \ 161 typedef Sk##_type BASE_CLASS 162 163 #define DECLARE_MEMBER_INFO(_type) \ 164 public: \ 165 static const SkMemberInfo fInfo[]; \ 166 static const int fInfoCount; \ 167 const SkMemberInfo* getMember(int index) override; \ 168 const SkMemberInfo* getMember(const char name[]) override; \ 169 SkDisplayTypes getType() const override { return SkType_##_type; } \ 170 typedef Sk##_type BASE_CLASS 171 172 #define DECLARE_DRAW_MEMBER_INFO(_type) \ 173 public: \ 174 static const SkMemberInfo fInfo[]; \ 175 static const int fInfoCount; \ 176 const SkMemberInfo* getMember(int index) override; \ 177 const SkMemberInfo* getMember(const char name[]) override; \ 178 SkDisplayTypes getType() const override { return SkType_##_type; } \ 179 typedef SkDraw##_type BASE_CLASS 180 181 #define DECLARE_DISPLAY_MEMBER_INFO(_type) \ 182 public: \ 183 static const SkMemberInfo fInfo[]; \ 184 static const int fInfoCount; \ 185 const SkMemberInfo* getMember(int index) override; \ 186 const SkMemberInfo* getMember(const char name[]) override; \ 187 SkDisplayTypes getType() const override { return SkType_##_type; } \ 188 typedef SkDisplay##_type BASE_CLASS 189 190 #define DECLARE_EMPTY_MEMBER_INFO(_type) \ 191 public: \ 192 SkDisplayTypes getType() const override { return SkType_##_type; } 193 194 #define DECLARE_EXTRAS_MEMBER_INFO(_type) \ 195 public: \ 196 static const SkMemberInfo fInfo[]; \ 197 static const int fInfoCount; \ 198 const SkMemberInfo* getMember(int index) override; \ 199 const SkMemberInfo* getMember(const char name[]) override; \ 200 SkDisplayTypes fType; \ 201 SkDisplayTypes getType() const override { return fType; } \ 202 typedef _type BASE_CLASS 203 204 #define DECLARE_NO_VIRTUALS_MEMBER_INFO(_type) \ 205 public: \ 206 static const SkMemberInfo fInfo[]; \ 207 static const int fInfoCount; \ 208 typedef Sk##_type BASE_CLASS 209 210 #define DEFINE_GET_MEMBER(_class) \ 211 const SkMemberInfo* _class::getMember(int index) { \ 212 const SkMemberInfo* result = SkMemberInfo::Find(fInfo, SK_ARRAY_COUNT(fInfo), &index); \ 213 return result; \ 214 } \ 215 const SkMemberInfo* _class::getMember(const char name[]) { \ 216 const SkMemberInfo* result = SkMemberInfo::Find(fInfo, SK_ARRAY_COUNT(fInfo), &name); \ 217 return result; \ 218 } \ 219 const int _class::fInfoCount = SK_ARRAY_COUNT(fInfo) 220 221 #define DEFINE_NO_VIRTUALS_GET_MEMBER(_class) \ 222 const int _class::fInfoCount = SK_ARRAY_COUNT(fInfo) 223 224 #else 225 226 #define DECLARE_PRIVATE_MEMBER_INFO(_type) \ 227 public: \ 228 typedef Sk##_type BASE_CLASS 229 230 #define DECLARE_MEMBER_INFO(_type) \ 231 public: \ 232 virtual const SkMemberInfo* getMember(int index) { \ 233 return SkDisplayType::GetMember(nullptr, SkType_##_type, &index); } \ 234 virtual const SkMemberInfo* getMember(const char name[]) { \ 235 return SkDisplayType::GetMember(nullptr, SkType_##_type, &name); } \ 236 virtual SkDisplayTypes getType() const { return SkType_##_type; } \ 237 typedef Sk##_type BASE_CLASS 238 239 #define DECLARE_DRAW_MEMBER_INFO(_type) \ 240 public: \ 241 virtual const SkMemberInfo* getMember(int index) { \ 242 return SkDisplayType::GetMember(nullptr, SkType_##_type, &index); } \ 243 virtual const SkMemberInfo* getMember(const char name[]) { \ 244 return SkDisplayType::GetMember(nullptr, SkType_##_type, &name); } \ 245 virtual SkDisplayTypes getType() const { return SkType_##_type; } \ 246 typedef SkDraw##_type BASE_CLASS 247 248 #define DECLARE_DISPLAY_MEMBER_INFO(_type) \ 249 public: \ 250 virtual const SkMemberInfo* getMember(int index) { \ 251 return SkDisplayType::GetMember(nullptr, SkType_##_type, &index); } \ 252 virtual const SkMemberInfo* getMember(const char name[]) { \ 253 return SkDisplayType::GetMember(nullptr, SkType_##_type, &name); } \ 254 virtual SkDisplayTypes getType() const { return SkType_##_type; } \ 255 typedef SkDisplay##_type BASE_CLASS 256 257 #define DECLARE_EXTRAS_MEMBER_INFO(_type) \ 258 public: \ 259 virtual const SkMemberInfo* getMember(int index) { \ 260 return SkDisplayType::GetMember(nullptr, SkType_##_type, &index); } \ 261 virtual const SkMemberInfo* getMember(const char name[]) { \ 262 return SkDisplayType::GetMember(nullptr, fType, &name); } \ 263 SkDisplayTypes fType; \ 264 virtual SkDisplayTypes getType() const { return fType; } \ 265 typedef _type BASE_CLASS 266 267 #define DECLARE_NO_VIRTUALS_MEMBER_INFO(_type) \ 268 public: \ 269 typedef Sk##_type BASE_CLASS 270 271 #define DEFINE_GET_MEMBER(_class) 272 #define DEFINE_NO_VIRTUALS_GET_MEMBER(_class) 273 274 #endif 275 276 #endif // SkMemberInfo_DEFINED 277
