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| 1 | 1 |
| 2 /* | 2 /* |
| 3 * Copyright 2007 The Android Open Source Project | 3 * Copyright 2007 The Android Open Source Project |
| 4 * | 4 * |
| 5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
| 6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
| 7 */ | 7 */ |
| 8 | 8 |
| 9 | 9 |
| 10 #include "SkPictureFlat.h" | 10 #include "SkPictureFlat.h" |
| (...skipping 238 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 249 } | 249 } |
| 250 } | 250 } |
| 251 | 251 |
| 252 /////////////////////////////////////////////////////////////////////////////// | 252 /////////////////////////////////////////////////////////////////////////////// |
| 253 | 253 |
| 254 #include "SkStream.h" | 254 #include "SkStream.h" |
| 255 | 255 |
| 256 static const char kMagic[] = { 's', 'k', 'i', 'a', 'p', 'i', 'c', 't' }; | 256 static const char kMagic[] = { 's', 'k', 'i', 'a', 'p', 'i', 'c', 't' }; |
| 257 static const size_t kHeaderSize = sizeof(kMagic) + sizeof(SkPictInfo); | 257 static const size_t kHeaderSize = sizeof(kMagic) + sizeof(SkPictInfo); |
| 258 | 258 |
| 259 bool SkPicture::StreamIsSKP(SkStream* stream, SkPictInfo* pInfo) { | 259 bool SkPicture::InternalOnly_StreamIsSKP(SkStream* stream, SkPictInfo* pInfo) { |
| 260 if (NULL == stream) { | 260 if (NULL == stream) { |
| 261 return false; | 261 return false; |
| 262 } | 262 } |
| 263 | 263 |
| 264 // Check magic bytes. | 264 // Check magic bytes. |
| 265 char magic[sizeof(kMagic)]; | 265 char magic[sizeof(kMagic)]; |
| 266 if (!stream->read(magic, sizeof(kMagic)) || | 266 if (!stream->read(magic, sizeof(kMagic)) || |
| 267 (0 != memcmp(magic, kMagic, sizeof(kMagic)))) { | 267 (0 != memcmp(magic, kMagic, sizeof(kMagic)))) { |
| 268 return false; | 268 return false; |
| 269 } | 269 } |
| 270 | 270 |
| 271 SkPictInfo info; | 271 SkPictInfo info; |
| 272 if (!stream->read(&info, sizeof(SkPictInfo))) { | 272 if (!stream->read(&info, sizeof(SkPictInfo))) { |
| 273 return false; | 273 return false; |
| 274 } | 274 } |
| 275 | 275 |
| 276 if (info.fVersion < MIN_PICTURE_VERSION || info.fVersion > CURRENT_PICTURE_V
ERSION) { | 276 if (info.fVersion < MIN_PICTURE_VERSION || info.fVersion > CURRENT_PICTURE_V
ERSION) { |
| 277 return false; | 277 return false; |
| 278 } | 278 } |
| 279 | 279 |
| 280 if (pInfo != NULL) { | 280 if (pInfo != NULL) { |
| 281 *pInfo = info; | 281 *pInfo = info; |
| 282 } | 282 } |
| 283 return true; | 283 return true; |
| 284 } | 284 } |
| 285 | 285 |
| 286 bool SkPicture::BufferIsSKP(SkReadBuffer& buffer, SkPictInfo* pInfo) { | 286 bool SkPicture::InternalOnly_BufferIsSKP(SkReadBuffer& buffer, SkPictInfo* pInfo
) { |
| 287 // Check magic bytes. | 287 // Check magic bytes. |
| 288 char magic[sizeof(kMagic)]; | 288 char magic[sizeof(kMagic)]; |
| 289 | 289 |
| 290 if (!buffer.readByteArray(magic, sizeof(kMagic)) || | 290 if (!buffer.readByteArray(magic, sizeof(kMagic)) || |
| 291 (0 != memcmp(magic, kMagic, sizeof(kMagic)))) { | 291 (0 != memcmp(magic, kMagic, sizeof(kMagic)))) { |
| 292 return false; | 292 return false; |
| 293 } | 293 } |
| 294 | 294 |
| 295 SkPictInfo info; | 295 SkPictInfo info; |
| 296 if (!buffer.readByteArray(&info, sizeof(SkPictInfo))) { | 296 if (!buffer.readByteArray(&info, sizeof(SkPictInfo))) { |
| (...skipping 12 matching lines...) Expand all Loading... |
| 309 | 309 |
| 310 SkPicture::SkPicture(SkPicturePlayback* playback, int width, int height) | 310 SkPicture::SkPicture(SkPicturePlayback* playback, int width, int height) |
| 311 : fPlayback(playback) | 311 : fPlayback(playback) |
| 312 , fRecord(NULL) | 312 , fRecord(NULL) |
| 313 , fWidth(width) | 313 , fWidth(width) |
| 314 , fHeight(height) {} | 314 , fHeight(height) {} |
| 315 | 315 |
| 316 SkPicture* SkPicture::CreateFromStream(SkStream* stream, InstallPixelRefProc pro
c) { | 316 SkPicture* SkPicture::CreateFromStream(SkStream* stream, InstallPixelRefProc pro
c) { |
| 317 SkPictInfo info; | 317 SkPictInfo info; |
| 318 | 318 |
| 319 if (!StreamIsSKP(stream, &info)) { | 319 if (!InternalOnly_StreamIsSKP(stream, &info)) { |
| 320 return NULL; | 320 return NULL; |
| 321 } | 321 } |
| 322 | 322 |
| 323 SkPicturePlayback* playback; | 323 SkPicturePlayback* playback; |
| 324 // Check to see if there is a playback to recreate. | 324 // Check to see if there is a playback to recreate. |
| 325 if (stream->readBool()) { | 325 if (stream->readBool()) { |
| 326 playback = SkPicturePlayback::CreateFromStream(stream, info, proc); | 326 playback = SkPicturePlayback::CreateFromStream(stream, info, proc); |
| 327 if (NULL == playback) { | 327 if (NULL == playback) { |
| 328 return NULL; | 328 return NULL; |
| 329 } | 329 } |
| 330 } else { | 330 } else { |
| 331 playback = NULL; | 331 playback = NULL; |
| 332 } | 332 } |
| 333 | 333 |
| 334 return SkNEW_ARGS(SkPicture, (playback, info.fWidth, info.fHeight)); | 334 return SkNEW_ARGS(SkPicture, (playback, info.fWidth, info.fHeight)); |
| 335 } | 335 } |
| 336 | 336 |
| 337 SkPicture* SkPicture::CreateFromBuffer(SkReadBuffer& buffer) { | 337 SkPicture* SkPicture::CreateFromBuffer(SkReadBuffer& buffer) { |
| 338 SkPictInfo info; | 338 SkPictInfo info; |
| 339 | 339 |
| 340 if (!BufferIsSKP(buffer, &info)) { | 340 if (!InternalOnly_BufferIsSKP(buffer, &info)) { |
| 341 return NULL; | 341 return NULL; |
| 342 } | 342 } |
| 343 | 343 |
| 344 SkPicturePlayback* playback; | 344 SkPicturePlayback* playback; |
| 345 // Check to see if there is a playback to recreate. | 345 // Check to see if there is a playback to recreate. |
| 346 if (buffer.readBool()) { | 346 if (buffer.readBool()) { |
| 347 playback = SkPicturePlayback::CreateFromBuffer(buffer); | 347 playback = SkPicturePlayback::CreateFromBuffer(buffer); |
| 348 if (NULL == playback) { | 348 if (NULL == playback) { |
| 349 return NULL; | 349 return NULL; |
| 350 } | 350 } |
| 351 } else { | 351 } else { |
| 352 playback = NULL; | 352 playback = NULL; |
| 353 } | 353 } |
| 354 | 354 |
| 355 return SkNEW_ARGS(SkPicture, (playback, info.fWidth, info.fHeight)); | 355 return SkNEW_ARGS(SkPicture, (playback, info.fWidth, info.fHeight)); |
| 356 } | 356 } |
| 357 | 357 |
| 358 void SkPicture::createHeader(void* header) const { | 358 void SkPicture::createHeader(void* header) const { |
| 359 // Copy magic bytes at the beginning of the header | 359 // Copy magic bytes at the beginning of the header |
| 360 SkASSERT(sizeof(kMagic) == 8); | 360 SkASSERT(sizeof(kMagic) == 8); |
| 361 memcpy(header, kMagic, sizeof(kMagic)); | 361 memcpy(header, kMagic, sizeof(kMagic)); |
| 362 | 362 |
| 363 // Set piture info after magic bytes in the header | 363 // Set picture info after magic bytes in the header |
| 364 SkPictInfo* info = (SkPictInfo*)(((char*)header) + sizeof(kMagic)); | 364 SkPictInfo* info = (SkPictInfo*)(((char*)header) + sizeof(kMagic)); |
| 365 info->fVersion = CURRENT_PICTURE_VERSION; | 365 info->fVersion = CURRENT_PICTURE_VERSION; |
| 366 info->fWidth = fWidth; | 366 info->fWidth = fWidth; |
| 367 info->fHeight = fHeight; | 367 info->fHeight = fHeight; |
| 368 info->fFlags = SkPictInfo::kCrossProcess_Flag; | 368 info->fFlags = SkPictInfo::kCrossProcess_Flag; |
| 369 // TODO: remove this flag, since we're always float (now) | 369 // TODO: remove this flag, since we're always float (now) |
| 370 info->fFlags |= SkPictInfo::kScalarIsFloat_Flag; | 370 info->fFlags |= SkPictInfo::kScalarIsFloat_Flag; |
| 371 | 371 |
| 372 if (8 == sizeof(void*)) { | 372 if (8 == sizeof(void*)) { |
| 373 info->fFlags |= SkPictInfo::kPtrIs64Bit_Flag; | 373 info->fFlags |= SkPictInfo::kPtrIs64Bit_Flag; |
| 374 } | 374 } |
| 375 } | 375 } |
| 376 | 376 |
| 377 void SkPicture::serialize(SkWStream* stream, EncodeBitmap encoder) const { | 377 void SkPicture::serialize(SkWStream* stream, EncodeBitmap encoder) const { |
| 378 SkPicturePlayback* playback = fPlayback; | 378 SkPicturePlayback* playback = fPlayback; |
| 379 | 379 |
| 380 if (NULL == playback && fRecord) { | 380 if (NULL == playback && fRecord) { |
| 381 playback = SkNEW_ARGS(SkPicturePlayback, (*fRecord)); | 381 playback = SkNEW_ARGS(SkPicturePlayback, (*fRecord)); |
| 382 } | 382 } |
| 383 | 383 |
| 384 char header[kHeaderSize]; | 384 char header[kHeaderSize]; |
| 385 createHeader(&header); | 385 this->createHeader(&header); |
| 386 stream->write(header, kHeaderSize); | 386 stream->write(header, kHeaderSize); |
| 387 if (playback) { | 387 if (playback) { |
| 388 stream->writeBool(true); | 388 stream->writeBool(true); |
| 389 playback->serialize(stream, encoder); | 389 playback->serialize(stream, encoder); |
| 390 // delete playback if it is a local version (i.e. cons'd up just now) | 390 // delete playback if it is a local version (i.e. cons'd up just now) |
| 391 if (playback != fPlayback) { | 391 if (playback != fPlayback) { |
| 392 SkDELETE(playback); | 392 SkDELETE(playback); |
| 393 } | 393 } |
| 394 } else { | 394 } else { |
| 395 stream->writeBool(false); | 395 stream->writeBool(false); |
| 396 } | 396 } |
| 397 } | 397 } |
| 398 | 398 |
| 399 void SkPicture::flatten(SkWriteBuffer& buffer) const { | 399 void SkPicture::flatten(SkWriteBuffer& buffer) const { |
| 400 SkPicturePlayback* playback = fPlayback; | 400 SkPicturePlayback* playback = fPlayback; |
| 401 | 401 |
| 402 if (NULL == playback && fRecord) { | 402 if (NULL == playback && fRecord) { |
| 403 playback = SkNEW_ARGS(SkPicturePlayback, (*fRecord)); | 403 playback = SkNEW_ARGS(SkPicturePlayback, (*fRecord)); |
| 404 } | 404 } |
| 405 | 405 |
| 406 char header[kHeaderSize]; | 406 char header[kHeaderSize]; |
| 407 createHeader(&header); | 407 this->createHeader(&header); |
| 408 buffer.writeByteArray(header, kHeaderSize); | 408 buffer.writeByteArray(header, kHeaderSize); |
| 409 if (playback) { | 409 if (playback) { |
| 410 buffer.writeBool(true); | 410 buffer.writeBool(true); |
| 411 playback->flatten(buffer); | 411 playback->flatten(buffer); |
| 412 // delete playback if it is a local version (i.e. cons'd up just now) | 412 // delete playback if it is a local version (i.e. cons'd up just now) |
| 413 if (playback != fPlayback) { | 413 if (playback != fPlayback) { |
| 414 SkDELETE(playback); | 414 SkDELETE(playback); |
| 415 } | 415 } |
| 416 } else { | 416 } else { |
| 417 buffer.writeBool(false); | 417 buffer.writeBool(false); |
| 418 } | 418 } |
| 419 } | 419 } |
| 420 | 420 |
| 421 bool SkPicture::willPlayBackBitmaps() const { | 421 bool SkPicture::willPlayBackBitmaps() const { |
| 422 if (!fPlayback) return false; | 422 if (!fPlayback) return false; |
| 423 return fPlayback->containsBitmaps(); | 423 return fPlayback->containsBitmaps(); |
| 424 } | 424 } |
| 425 | 425 |
| 426 #ifdef SK_BUILD_FOR_ANDROID | 426 #ifdef SK_BUILD_FOR_ANDROID |
| 427 void SkPicture::abortPlayback() { | 427 void SkPicture::abortPlayback() { |
| 428 if (NULL == fPlayback) { | 428 if (NULL == fPlayback) { |
| 429 return; | 429 return; |
| 430 } | 430 } |
| 431 fPlayback->abort(); | 431 fPlayback->abort(); |
| 432 } | 432 } |
| 433 #endif | 433 #endif |
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