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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2006 The Android Open Source Project | 3 * Copyright 2006 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 #ifndef SkImageDecoder_DEFINED | 10 #ifndef SkImageDecoder_DEFINED |
11 #define SkImageDecoder_DEFINED | 11 #define SkImageDecoder_DEFINED |
12 | 12 |
13 #include "SkBitmap.h" | 13 #include "SkBitmap.h" |
14 #include "SkBitmapFactory.h" | 14 #include "SkBitmapFactory.h" |
15 #include "SkImage.h" | 15 #include "SkImage.h" |
16 #include "SkRect.h" | 16 #include "SkRect.h" |
17 #include "SkRefCnt.h" | 17 #include "SkRefCnt.h" |
18 | 18 |
19 class SkStream; | 19 class SkStream; |
20 | 20 |
21 /** \class SkImageDecoder | 21 /** \class SkImageDecoder |
22 | 22 |
23 Base class for decoding compressed images into a SkBitmap | 23 Base class for decoding compressed images into a SkBitmap |
24 */ | 24 */ |
25 class SkImageDecoder { | 25 class SkImageDecoder { |
26 public: | 26 public: |
27 virtual ~SkImageDecoder(); | 27 virtual ~SkImageDecoder(); |
28 | 28 |
29 // Should be consistent with kFormatName | 29 // Should be consistent with sFormatName |
30 enum Format { | 30 enum Format { |
31 kUnknown_Format, | 31 kUnknown_Format, |
32 kBMP_Format, | 32 kBMP_Format, |
33 kGIF_Format, | 33 kGIF_Format, |
34 kICO_Format, | 34 kICO_Format, |
35 kJPEG_Format, | 35 kJPEG_Format, |
36 kPNG_Format, | 36 kPNG_Format, |
37 kWBMP_Format, | 37 kWBMP_Format, |
38 kWEBP_Format, | 38 kWEBP_Format, |
39 | 39 |
40 kLastKnownFormat = kWEBP_Format | 40 kLastKnownFormat = kWEBP_Format |
41 }; | 41 }; |
42 | 42 |
43 /** Return the compressed data's format (see Format enum) | 43 /** Return the format of image this decoder can decode. If this decoder can
decode multiple |
| 44 formats, kUnknown_Format will be returned. |
44 */ | 45 */ |
45 virtual Format getFormat() const; | 46 virtual Format getFormat() const; |
46 | 47 |
47 /** Return the compressed data's format name. | 48 /** Return a readable string of the value returned by getFormat(). |
48 */ | 49 */ |
49 const char* getFormatName() const; | 50 const char* getFormatName() const; |
50 | 51 |
51 /** Returns true if the decoder should try to dither the resulting image. | 52 /** Returns true if the decoder should try to dither the resulting image. |
52 The default setting is true. | 53 The default setting is true. |
53 */ | 54 */ |
54 bool getDitherImage() const { return fDitherImage; } | 55 bool getDitherImage() const { return fDitherImage; } |
55 | 56 |
56 /** Set to true if the the decoder should try to dither the resulting image. | 57 /** Set to true if the the decoder should try to dither the resulting image. |
57 The default setting is true. | 58 The default setting is true. |
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467 // not all of these will be available | 468 // not all of these will be available |
468 DECLARE_DECODER_CREATOR(BMPImageDecoder); | 469 DECLARE_DECODER_CREATOR(BMPImageDecoder); |
469 DECLARE_DECODER_CREATOR(GIFImageDecoder); | 470 DECLARE_DECODER_CREATOR(GIFImageDecoder); |
470 DECLARE_DECODER_CREATOR(ICOImageDecoder); | 471 DECLARE_DECODER_CREATOR(ICOImageDecoder); |
471 DECLARE_DECODER_CREATOR(JPEGImageDecoder); | 472 DECLARE_DECODER_CREATOR(JPEGImageDecoder); |
472 DECLARE_DECODER_CREATOR(PNGImageDecoder); | 473 DECLARE_DECODER_CREATOR(PNGImageDecoder); |
473 DECLARE_DECODER_CREATOR(WBMPImageDecoder); | 474 DECLARE_DECODER_CREATOR(WBMPImageDecoder); |
474 DECLARE_DECODER_CREATOR(WEBPImageDecoder); | 475 DECLARE_DECODER_CREATOR(WEBPImageDecoder); |
475 | 476 |
476 #endif | 477 #endif |
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