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1 /* | 1 /* |
2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "SkBitmapRegionCanvas.h" | 8 #include "SkBitmapRegionCanvas.h" |
9 #include "SkBitmapRegionCodec.h" | 9 #include "SkBitmapRegionCodec.h" |
10 #include "SkBitmapRegionDecoder.h" | 10 #include "SkBitmapRegionDecoder.h" |
11 #include "SkAndroidCodec.h" | 11 #include "SkAndroidCodec.h" |
12 #include "SkCodec.h" | 12 #include "SkCodec.h" |
13 #include "SkCodecPriv.h" | 13 #include "SkCodecPriv.h" |
14 #include "SkImageDecoder.h" | 14 #include "SkImageDecoder.h" |
15 | 15 |
16 SkBitmapRegionDecoder* SkBitmapRegionDecoder::Create( | 16 SkBitmapRegionDecoder* SkBitmapRegionDecoder::Create( |
17 SkData* data, Strategy strategy) { | 17 SkData* data, Strategy strategy) { |
18 return SkBitmapRegionDecoder::Create(new SkMemoryStream(data), | 18 return SkBitmapRegionDecoder::Create(new SkMemoryStream(data), |
19 strategy); | 19 strategy); |
20 } | 20 } |
21 | 21 |
22 SkBitmapRegionDecoder* SkBitmapRegionDecoder::Create( | 22 SkBitmapRegionDecoder* SkBitmapRegionDecoder::Create( |
23 SkStreamRewindable* stream, Strategy strategy) { | 23 SkStreamRewindable* stream, Strategy strategy) { |
24 SkAutoTDelete<SkStreamRewindable> streamDeleter(stream); | 24 SkAutoTDelete<SkStreamRewindable> streamDeleter(stream); |
25 switch (strategy) { | 25 switch (strategy) { |
26 case kCanvas_Strategy: { | 26 case kCanvas_Strategy: { |
27 SkAutoTDelete<SkCodec> codec(SkCodec::NewFromStream(streamDeleter.de
tach())); | 27 SkAutoTDelete<SkCodec> codec(SkCodec::NewFromStream(streamDeleter.re
lease())); |
28 if (nullptr == codec) { | 28 if (nullptr == codec) { |
29 SkCodecPrintf("Error: Failed to create decoder.\n"); | 29 SkCodecPrintf("Error: Failed to create decoder.\n"); |
30 return nullptr; | 30 return nullptr; |
31 } | 31 } |
32 | 32 |
33 SkEncodedFormat format = codec->getEncodedFormat(); | 33 SkEncodedFormat format = codec->getEncodedFormat(); |
34 switch (format) { | 34 switch (format) { |
35 case SkEncodedFormat::kJPEG_SkEncodedFormat: | 35 case SkEncodedFormat::kJPEG_SkEncodedFormat: |
36 case SkEncodedFormat::kPNG_SkEncodedFormat: | 36 case SkEncodedFormat::kPNG_SkEncodedFormat: |
37 break; | 37 break; |
38 default: | 38 default: |
39 // FIXME: Support webp using a special case. Webp does not
support | 39 // FIXME: Support webp using a special case. Webp does not
support |
40 // scanline decoding. | 40 // scanline decoding. |
41 return nullptr; | 41 return nullptr; |
42 } | 42 } |
43 | 43 |
44 // If the image is a jpeg or a png, the scanline ordering should alw
ays be | 44 // If the image is a jpeg or a png, the scanline ordering should alw
ays be |
45 // kTopDown or kNone. It is relevant to check because this implemen
tation | 45 // kTopDown or kNone. It is relevant to check because this implemen
tation |
46 // only supports these two scanline orderings. | 46 // only supports these two scanline orderings. |
47 SkASSERT(SkCodec::kTopDown_SkScanlineOrder == codec->getScanlineOrde
r() || | 47 SkASSERT(SkCodec::kTopDown_SkScanlineOrder == codec->getScanlineOrde
r() || |
48 SkCodec::kNone_SkScanlineOrder == codec->getScanlineOrder())
; | 48 SkCodec::kNone_SkScanlineOrder == codec->getScanlineOrder())
; |
49 | 49 |
50 return new SkBitmapRegionCanvas(codec.detach()); | 50 return new SkBitmapRegionCanvas(codec.release()); |
51 } | 51 } |
52 case kAndroidCodec_Strategy: { | 52 case kAndroidCodec_Strategy: { |
53 SkAutoTDelete<SkAndroidCodec> codec = | 53 SkAutoTDelete<SkAndroidCodec> codec = |
54 SkAndroidCodec::NewFromStream(streamDeleter.detach()); | 54 SkAndroidCodec::NewFromStream(streamDeleter.release()); |
55 if (nullptr == codec) { | 55 if (nullptr == codec) { |
56 SkCodecPrintf("Error: Failed to create codec.\n"); | 56 SkCodecPrintf("Error: Failed to create codec.\n"); |
57 return NULL; | 57 return NULL; |
58 } | 58 } |
59 | 59 |
60 SkEncodedFormat format = codec->getEncodedFormat(); | 60 SkEncodedFormat format = codec->getEncodedFormat(); |
61 switch (format) { | 61 switch (format) { |
62 case SkEncodedFormat::kJPEG_SkEncodedFormat: | 62 case SkEncodedFormat::kJPEG_SkEncodedFormat: |
63 case SkEncodedFormat::kPNG_SkEncodedFormat: | 63 case SkEncodedFormat::kPNG_SkEncodedFormat: |
64 case SkEncodedFormat::kWEBP_SkEncodedFormat: | 64 case SkEncodedFormat::kWEBP_SkEncodedFormat: |
65 break; | 65 break; |
66 default: | 66 default: |
67 return nullptr; | 67 return nullptr; |
68 } | 68 } |
69 | 69 |
70 return new SkBitmapRegionCodec(codec.detach()); | 70 return new SkBitmapRegionCodec(codec.release()); |
71 } | 71 } |
72 default: | 72 default: |
73 SkASSERT(false); | 73 SkASSERT(false); |
74 return nullptr; | 74 return nullptr; |
75 } | 75 } |
76 } | 76 } |
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