epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 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 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 9 | |
| 10 | #include "SkMetaData.h" |
reed@google.com | e733071 | 2011-03-30 18:23:21 +0000 | [diff] [blame] | 11 | #include "SkRefCnt.h" |
| 12 | |
| 13 | struct PtrPair { |
| 14 | void* fPtr; |
| 15 | SkMetaData::PtrProc fProc; |
| 16 | }; |
| 17 | |
| 18 | void* SkMetaData::RefCntProc(void* ptr, bool doRef) { |
| 19 | SkASSERT(ptr); |
| 20 | SkRefCnt* refcnt = reinterpret_cast<SkRefCnt*>(ptr); |
| 21 | |
| 22 | if (doRef) { |
| 23 | refcnt->ref(); |
| 24 | } else { |
| 25 | refcnt->unref(); |
| 26 | } |
| 27 | return ptr; |
| 28 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 29 | |
| 30 | SkMetaData::SkMetaData() : fRec(NULL) |
| 31 | { |
| 32 | } |
| 33 | |
| 34 | SkMetaData::SkMetaData(const SkMetaData& src) : fRec(NULL) |
| 35 | { |
| 36 | *this = src; |
| 37 | } |
| 38 | |
| 39 | SkMetaData::~SkMetaData() |
| 40 | { |
| 41 | this->reset(); |
| 42 | } |
| 43 | |
| 44 | void SkMetaData::reset() |
| 45 | { |
| 46 | Rec* rec = fRec; |
reed@google.com | e733071 | 2011-03-30 18:23:21 +0000 | [diff] [blame] | 47 | while (rec) { |
| 48 | if (kPtr_Type == rec->fType) { |
| 49 | PtrPair* pair = (PtrPair*)rec->data(); |
| 50 | if (pair->fProc && pair->fPtr) { |
| 51 | pair->fPtr = pair->fProc(pair->fPtr, false); |
| 52 | } |
| 53 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 54 | Rec* next = rec->fNext; |
| 55 | Rec::Free(rec); |
| 56 | rec = next; |
| 57 | } |
| 58 | fRec = NULL; |
| 59 | } |
| 60 | |
| 61 | SkMetaData& SkMetaData::operator=(const SkMetaData& src) |
| 62 | { |
| 63 | this->reset(); |
| 64 | |
| 65 | const Rec* rec = src.fRec; |
| 66 | while (rec) |
| 67 | { |
| 68 | this->set(rec->name(), rec->data(), rec->fDataLen, (Type)rec->fType, rec->fDataCount); |
| 69 | rec = rec->fNext; |
| 70 | } |
| 71 | return *this; |
| 72 | } |
| 73 | |
| 74 | void SkMetaData::setS32(const char name[], int32_t value) |
| 75 | { |
| 76 | (void)this->set(name, &value, sizeof(int32_t), kS32_Type, 1); |
| 77 | } |
| 78 | |
| 79 | void SkMetaData::setScalar(const char name[], SkScalar value) |
| 80 | { |
| 81 | (void)this->set(name, &value, sizeof(SkScalar), kScalar_Type, 1); |
| 82 | } |
| 83 | |
| 84 | SkScalar* SkMetaData::setScalars(const char name[], int count, const SkScalar values[]) |
| 85 | { |
| 86 | SkASSERT(count > 0); |
| 87 | if (count > 0) |
| 88 | return (SkScalar*)this->set(name, values, sizeof(SkScalar), kScalar_Type, count); |
| 89 | return NULL; |
| 90 | } |
| 91 | |
| 92 | void SkMetaData::setString(const char name[], const char value[]) |
| 93 | { |
commit-bot@chromium.org | a8c7f77 | 2014-01-24 21:46:29 +0000 | [diff] [blame] | 94 | (void)this->set(name, value, sizeof(char), kString_Type, SkToInt(strlen(value) + 1)); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 95 | } |
| 96 | |
reed@google.com | e733071 | 2011-03-30 18:23:21 +0000 | [diff] [blame] | 97 | void SkMetaData::setPtr(const char name[], void* ptr, PtrProc proc) { |
| 98 | PtrPair pair = { ptr, proc }; |
| 99 | (void)this->set(name, &pair, sizeof(PtrPair), kPtr_Type, 1); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 100 | } |
| 101 | |
| 102 | void SkMetaData::setBool(const char name[], bool value) |
| 103 | { |
| 104 | (void)this->set(name, &value, sizeof(bool), kBool_Type, 1); |
| 105 | } |
| 106 | |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 107 | void SkMetaData::setData(const char name[], const void* data, size_t byteCount) { |
commit-bot@chromium.org | a8c7f77 | 2014-01-24 21:46:29 +0000 | [diff] [blame] | 108 | (void)this->set(name, data, sizeof(char), kData_Type, SkToInt(byteCount)); |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 109 | } |
| 110 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 111 | void* SkMetaData::set(const char name[], const void* data, size_t dataSize, Type type, int count) |
| 112 | { |
| 113 | SkASSERT(name); |
| 114 | SkASSERT(dataSize); |
| 115 | SkASSERT(count > 0); |
| 116 | |
| 117 | (void)this->remove(name, type); |
| 118 | |
| 119 | size_t len = strlen(name); |
| 120 | Rec* rec = Rec::Alloc(sizeof(Rec) + dataSize * count + len + 1); |
| 121 | |
| 122 | #ifndef SK_DEBUG |
| 123 | rec->fType = SkToU8(type); |
| 124 | #else |
| 125 | rec->fType = type; |
| 126 | #endif |
| 127 | rec->fDataLen = SkToU8(dataSize); |
| 128 | rec->fDataCount = SkToU16(count); |
| 129 | if (data) |
| 130 | memcpy(rec->data(), data, dataSize * count); |
| 131 | memcpy(rec->name(), name, len + 1); |
| 132 | |
reed@google.com | e733071 | 2011-03-30 18:23:21 +0000 | [diff] [blame] | 133 | if (kPtr_Type == type) { |
| 134 | PtrPair* pair = (PtrPair*)rec->data(); |
| 135 | if (pair->fProc && pair->fPtr) { |
| 136 | pair->fPtr = pair->fProc(pair->fPtr, true); |
| 137 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 138 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 139 | |
| 140 | rec->fNext = fRec; |
| 141 | fRec = rec; |
| 142 | return rec->data(); |
| 143 | } |
| 144 | |
| 145 | bool SkMetaData::findS32(const char name[], int32_t* value) const |
| 146 | { |
| 147 | const Rec* rec = this->find(name, kS32_Type); |
| 148 | if (rec) |
| 149 | { |
| 150 | SkASSERT(rec->fDataCount == 1); |
| 151 | if (value) |
| 152 | *value = *(const int32_t*)rec->data(); |
| 153 | return true; |
| 154 | } |
| 155 | return false; |
| 156 | } |
| 157 | |
| 158 | bool SkMetaData::findScalar(const char name[], SkScalar* value) const |
| 159 | { |
| 160 | const Rec* rec = this->find(name, kScalar_Type); |
| 161 | if (rec) |
| 162 | { |
| 163 | SkASSERT(rec->fDataCount == 1); |
| 164 | if (value) |
| 165 | *value = *(const SkScalar*)rec->data(); |
| 166 | return true; |
| 167 | } |
| 168 | return false; |
| 169 | } |
| 170 | |
| 171 | const SkScalar* SkMetaData::findScalars(const char name[], int* count, SkScalar values[]) const |
| 172 | { |
| 173 | const Rec* rec = this->find(name, kScalar_Type); |
| 174 | if (rec) |
| 175 | { |
| 176 | if (count) |
| 177 | *count = rec->fDataCount; |
| 178 | if (values) |
| 179 | memcpy(values, rec->data(), rec->fDataCount * rec->fDataLen); |
| 180 | return (const SkScalar*)rec->data(); |
| 181 | } |
| 182 | return NULL; |
| 183 | } |
| 184 | |
reed@google.com | e733071 | 2011-03-30 18:23:21 +0000 | [diff] [blame] | 185 | bool SkMetaData::findPtr(const char name[], void** ptr, PtrProc* proc) const { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 186 | const Rec* rec = this->find(name, kPtr_Type); |
reed@google.com | e733071 | 2011-03-30 18:23:21 +0000 | [diff] [blame] | 187 | if (rec) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 188 | SkASSERT(rec->fDataCount == 1); |
reed@google.com | e733071 | 2011-03-30 18:23:21 +0000 | [diff] [blame] | 189 | const PtrPair* pair = (const PtrPair*)rec->data(); |
| 190 | if (ptr) { |
| 191 | *ptr = pair->fPtr; |
| 192 | } |
| 193 | if (proc) { |
| 194 | *proc = pair->fProc; |
| 195 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 196 | return true; |
| 197 | } |
| 198 | return false; |
| 199 | } |
| 200 | |
| 201 | const char* SkMetaData::findString(const char name[]) const |
| 202 | { |
| 203 | const Rec* rec = this->find(name, kString_Type); |
| 204 | SkASSERT(rec == NULL || rec->fDataLen == sizeof(char)); |
| 205 | return rec ? (const char*)rec->data() : NULL; |
| 206 | } |
| 207 | |
| 208 | bool SkMetaData::findBool(const char name[], bool* value) const |
| 209 | { |
| 210 | const Rec* rec = this->find(name, kBool_Type); |
| 211 | if (rec) |
| 212 | { |
| 213 | SkASSERT(rec->fDataCount == 1); |
| 214 | if (value) |
| 215 | *value = *(const bool*)rec->data(); |
| 216 | return true; |
| 217 | } |
| 218 | return false; |
| 219 | } |
| 220 | |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 221 | const void* SkMetaData::findData(const char name[], size_t* length) const { |
| 222 | const Rec* rec = this->find(name, kData_Type); |
| 223 | if (rec) { |
| 224 | SkASSERT(rec->fDataLen == sizeof(char)); |
| 225 | if (length) { |
| 226 | *length = rec->fDataCount; |
| 227 | } |
| 228 | return rec->data(); |
| 229 | } |
| 230 | return NULL; |
| 231 | } |
| 232 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 233 | const SkMetaData::Rec* SkMetaData::find(const char name[], Type type) const |
| 234 | { |
| 235 | const Rec* rec = fRec; |
| 236 | while (rec) |
| 237 | { |
| 238 | if (rec->fType == type && !strcmp(rec->name(), name)) |
| 239 | return rec; |
| 240 | rec = rec->fNext; |
| 241 | } |
| 242 | return NULL; |
| 243 | } |
| 244 | |
reed@google.com | e733071 | 2011-03-30 18:23:21 +0000 | [diff] [blame] | 245 | bool SkMetaData::remove(const char name[], Type type) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 246 | Rec* rec = fRec; |
| 247 | Rec* prev = NULL; |
reed@google.com | e733071 | 2011-03-30 18:23:21 +0000 | [diff] [blame] | 248 | while (rec) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 249 | Rec* next = rec->fNext; |
reed@google.com | e733071 | 2011-03-30 18:23:21 +0000 | [diff] [blame] | 250 | if (rec->fType == type && !strcmp(rec->name(), name)) { |
| 251 | if (prev) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 252 | prev->fNext = next; |
reed@google.com | e733071 | 2011-03-30 18:23:21 +0000 | [diff] [blame] | 253 | } else { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 254 | fRec = next; |
reed@google.com | e733071 | 2011-03-30 18:23:21 +0000 | [diff] [blame] | 255 | } |
| 256 | |
| 257 | if (kPtr_Type == type) { |
| 258 | PtrPair* pair = (PtrPair*)rec->data(); |
| 259 | if (pair->fProc && pair->fPtr) { |
| 260 | (void)pair->fProc(pair->fPtr, false); |
| 261 | } |
| 262 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 263 | Rec::Free(rec); |
| 264 | return true; |
| 265 | } |
| 266 | prev = rec; |
| 267 | rec = next; |
| 268 | } |
| 269 | return false; |
| 270 | } |
| 271 | |
| 272 | bool SkMetaData::removeS32(const char name[]) |
| 273 | { |
| 274 | return this->remove(name, kS32_Type); |
| 275 | } |
| 276 | |
| 277 | bool SkMetaData::removeScalar(const char name[]) |
| 278 | { |
| 279 | return this->remove(name, kScalar_Type); |
| 280 | } |
| 281 | |
| 282 | bool SkMetaData::removeString(const char name[]) |
| 283 | { |
| 284 | return this->remove(name, kString_Type); |
| 285 | } |
| 286 | |
| 287 | bool SkMetaData::removePtr(const char name[]) |
| 288 | { |
| 289 | return this->remove(name, kPtr_Type); |
| 290 | } |
| 291 | |
| 292 | bool SkMetaData::removeBool(const char name[]) |
| 293 | { |
| 294 | return this->remove(name, kBool_Type); |
| 295 | } |
| 296 | |
reed@android.com | f2b98d6 | 2010-12-20 18:26:13 +0000 | [diff] [blame] | 297 | bool SkMetaData::removeData(const char name[]) { |
| 298 | return this->remove(name, kData_Type); |
| 299 | } |
| 300 | |
reed@google.com | e733071 | 2011-03-30 18:23:21 +0000 | [diff] [blame] | 301 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 302 | |
reed@google.com | e733071 | 2011-03-30 18:23:21 +0000 | [diff] [blame] | 303 | SkMetaData::Iter::Iter(const SkMetaData& metadata) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 304 | fRec = metadata.fRec; |
| 305 | } |
| 306 | |
reed@google.com | e733071 | 2011-03-30 18:23:21 +0000 | [diff] [blame] | 307 | void SkMetaData::Iter::reset(const SkMetaData& metadata) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 308 | fRec = metadata.fRec; |
| 309 | } |
| 310 | |
reed@google.com | e733071 | 2011-03-30 18:23:21 +0000 | [diff] [blame] | 311 | const char* SkMetaData::Iter::next(SkMetaData::Type* t, int* count) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 312 | const char* name = NULL; |
| 313 | |
reed@google.com | e733071 | 2011-03-30 18:23:21 +0000 | [diff] [blame] | 314 | if (fRec) { |
| 315 | if (t) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 316 | *t = (SkMetaData::Type)fRec->fType; |
reed@google.com | e733071 | 2011-03-30 18:23:21 +0000 | [diff] [blame] | 317 | } |
| 318 | if (count) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 319 | *count = fRec->fDataCount; |
reed@google.com | e733071 | 2011-03-30 18:23:21 +0000 | [diff] [blame] | 320 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 321 | name = fRec->name(); |
| 322 | |
| 323 | fRec = fRec->fNext; |
| 324 | } |
| 325 | return name; |
| 326 | } |
| 327 | |
reed@google.com | e733071 | 2011-03-30 18:23:21 +0000 | [diff] [blame] | 328 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 329 | |
reed@google.com | e733071 | 2011-03-30 18:23:21 +0000 | [diff] [blame] | 330 | SkMetaData::Rec* SkMetaData::Rec::Alloc(size_t size) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 331 | return (Rec*)sk_malloc_throw(size); |
| 332 | } |
| 333 | |
reed@google.com | e733071 | 2011-03-30 18:23:21 +0000 | [diff] [blame] | 334 | void SkMetaData::Rec::Free(Rec* rec) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 335 | sk_free(rec); |
| 336 | } |