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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2008 The Android Open Source Project | 3 * Copyright 2008 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 "SkBitmap.h" | 10 #include "SkBitmap.h" |
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326 } | 326 } |
327 | 327 |
328 bool SkBitmap::setAlphaType(SkAlphaType alphaType) { | 328 bool SkBitmap::setAlphaType(SkAlphaType alphaType) { |
329 if (!validate_alphaType(this->config(), alphaType, &alphaType)) { | 329 if (!validate_alphaType(this->config(), alphaType, &alphaType)) { |
330 return false; | 330 return false; |
331 } | 331 } |
332 fAlphaType = SkToU8(alphaType); | 332 fAlphaType = SkToU8(alphaType); |
333 return true; | 333 return true; |
334 } | 334 } |
335 | 335 |
336 SkPixelRef* SkBitmap::installPixelRef(SkPixelRef* pr, const SkIRect* subset) { | |
337 if (NULL == pr) { | |
338 this->reset(); | |
339 return NULL; | |
340 } | |
341 | |
342 const SkImageInfo& info = pr->info(); | |
343 | |
344 fConfig = SkColorTypeToBitmapConfig(info.fColorType); | |
345 fAlphaType = info.fAlphaType; | |
346 fBytesPerPixel = info.bytesPerPixel(); | |
347 // not known until we're locked | |
348 fRowBytes = 0; | |
349 | |
350 SkIRect bounds = { 0, 0, info.fWidth, info.fHeight }; | |
351 if (subset && !bounds.intersect(*subset)) { | |
352 bounds.setEmpty(); | |
353 } | |
354 | |
355 fWidth = bounds.width(); | |
356 fHeight = bounds.height(); | |
357 return this->setPixelRef(pr, bounds.left(), bounds.top()); | |
358 } | |
359 | |
360 void SkBitmap::updatePixelsFromRef() const { | 336 void SkBitmap::updatePixelsFromRef() const { |
361 if (NULL != fPixelRef) { | 337 if (NULL != fPixelRef) { |
362 if (fPixelLockCount > 0) { | 338 if (fPixelLockCount > 0) { |
363 SkASSERT(fPixelRef->isLocked()); | 339 SkASSERT(fPixelRef->isLocked()); |
364 | 340 |
365 void* p = fPixelRef->pixels(); | 341 void* p = fPixelRef->pixels(); |
366 if (NULL != p) { | 342 if (NULL != p) { |
367 p = (char*)p | 343 p = (char*)p |
368 + fPixelRefOrigin.fY * fRowBytes | 344 + fPixelRefOrigin.fY * fRowBytes |
369 + fPixelRefOrigin.fX * fBytesPerPixel; | 345 + fPixelRefOrigin.fX * fBytesPerPixel; |
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1660 if (NULL != uri) { | 1636 if (NULL != uri) { |
1661 str->appendf(" uri:\"%s\"", uri); | 1637 str->appendf(" uri:\"%s\"", uri); |
1662 } else { | 1638 } else { |
1663 str->appendf(" pixelref:%p", pr); | 1639 str->appendf(" pixelref:%p", pr); |
1664 } | 1640 } |
1665 } | 1641 } |
1666 | 1642 |
1667 str->append(")"); | 1643 str->append(")"); |
1668 } | 1644 } |
1669 #endif | 1645 #endif |
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