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1 /* | |
2 * Copyright 2015 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 "SkCodec.h" | |
9 #include "SkImageGenerator.h" | |
10 | |
11 class SkCodecImageGenerator : SkImageGenerator { | |
12 public: | |
13 /* | |
14 * Takes ownership of codec | |
15 */ | |
16 static SkImageGenerator* Create(SkCodec* codec); | |
17 | |
18 protected: | |
19 | |
20 bool onGetPixels(const SkImageInfo& info, void* pixels, size_t rowBytes, SkP MColor ctable[], | |
21 int* ctableCount) override; | |
22 | |
23 private: | |
24 SkCodecImageGenerator(SkCodec* codec); | |
25 | |
26 SkAutoTDelete<SkCodec> fCodec; // Owned | |
scroggo
2015/12/02 20:22:55
nit: I think it's obvious that fCodec is owned, si
msarett
2015/12/02 22:56:01
I think so too. Removing the comment.
| |
27 | |
28 typedef SkImageGenerator INHERITED; | |
29 }; | |
30 | |
31 SkImageGenerator* SkCodecImageGenerator::Create(SkCodec* codec) { | |
32 if (nullptr == codec) { | |
33 return nullptr; | |
34 } | |
35 | |
36 return new SkCodecImageGenerator(codec); | |
37 } | |
38 | |
39 SkCodecImageGenerator::SkCodecImageGenerator(SkCodec* codec) | |
40 : INHERITED(codec->getInfo()) | |
41 , fCodec(codec) | |
42 {} | |
43 | |
44 bool SkCodecImageGenerator::onGetPixels(const SkImageInfo& info, void* pixels, s ize_t rowBytes, | |
45 SkPMColor ctable[], int* ctableCount) { | |
46 | |
47 SkCodec::Result result = fCodec->getPixels(info, pixels, rowBytes, nullptr, ctable, | |
48 ctableCount); | |
49 switch (result) { | |
50 case SkCodec::kSuccess: | |
51 case SkCodec::kIncompleteInput: | |
52 return true; | |
53 default: | |
54 return false; | |
55 } | |
56 } | |
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