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1 /* | |
2 * Copyright 2013 Google Inc. | |
3 * | |
4 * Use of this source code is governed by a BSD-style license that can be | |
5 * found in the LICENSE file. | |
6 */ | |
7 | |
8 #include "Sk64.h" | |
9 #include "SkColorTable.h" | |
10 #include "SkData.h" | |
11 #include "SkImageDecoder.h" | |
12 #include "SkImagePriv.h" | |
13 #include "SkLazyCachingPixelRef.h" | |
14 #include "SkPostConfig.h" | |
15 | |
16 SkLazyCachingPixelRef::SkLazyCachingPixelRef(const SkImageInfo& info, | |
scroggo
2013/12/06 14:50:33
Deleted by Hal?
| |
17 SkData* data, | |
18 SkBitmapFactory::DecodeProc proc) | |
19 : INHERITED(info) | |
20 , fDecodeProc(proc) | |
21 { | |
22 if (NULL == data) { | |
23 fData = SkData::NewEmpty(); | |
24 } else { | |
25 fData = data; | |
26 fData->ref(); | |
27 } | |
28 if (NULL == fDecodeProc) { // use a reasonable default. | |
29 fDecodeProc = SkImageDecoder::DecodeMemoryToTarget; | |
30 } | |
31 this->setImmutable(); | |
32 } | |
33 | |
34 SkLazyCachingPixelRef::~SkLazyCachingPixelRef() { | |
35 SkASSERT(fData != NULL); | |
36 fData->unref(); | |
37 } | |
38 | |
39 bool SkLazyCachingPixelRef::onDecodePixels(void* pixels, size_t rowBytes) { | |
40 SkASSERT(pixels); | |
41 SkImageInfo info = this->info(); | |
42 SkBitmapFactory::Target target = { pixels, rowBytes }; | |
43 return fDecodeProc(fData->data(), fData->size(), &info, &target); | |
44 } | |
45 | |
46 bool SkLazyCachingPixelRef::Install(SkBitmapFactory::DecodeProc proc, | |
47 SkData* data, | |
48 SkBitmap* destination) { | |
49 SkImageInfo info; | |
50 if (!proc(data->data(), data->size(), &info, NULL)) { | |
51 return false; | |
52 } | |
53 | |
54 SkAutoTUnref<SkLazyCachingPixelRef> ref( | |
55 SkNEW_ARGS(SkLazyCachingPixelRef, (info, data, proc))); | |
56 return ref->configure(destination) && destination->setPixelRef(ref); | |
57 } | |
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