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| 1 | 1 |
| 2 /* | 2 /* |
| 3 * Copyright 2011 Google Inc. | 3 * Copyright 2011 Google Inc. |
| 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 #ifndef SkImageEncoder_DEFINED | 8 #ifndef SkImageEncoder_DEFINED |
| 9 #define SkImageEncoder_DEFINED | 9 #define SkImageEncoder_DEFINED |
| 10 | 10 |
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| 69 /** | 69 /** |
| 70 * Encode bitmap 'bm' in the desired format, writing results to | 70 * Encode bitmap 'bm' in the desired format, writing results to |
| 71 * stream 'stream', at quality level 'quality' (which can be in | 71 * stream 'stream', at quality level 'quality' (which can be in |
| 72 * range 0-100). | 72 * range 0-100). |
| 73 * | 73 * |
| 74 * This must be overridden by each SkImageEncoder implementation. | 74 * This must be overridden by each SkImageEncoder implementation. |
| 75 */ | 75 */ |
| 76 virtual bool onEncode(SkWStream* stream, const SkBitmap& bm, int quality) =
0; | 76 virtual bool onEncode(SkWStream* stream, const SkBitmap& bm, int quality) =
0; |
| 77 }; | 77 }; |
| 78 | 78 |
| 79 // This macro declares a global (i.e., non-class owned) creation entry point | |
| 80 // for each encoder (e.g., CreateJPEGImageEncoder) | |
| 81 #define DECLARE_ENCODER_CREATOR(codec) \ | |
| 82 SkImageEncoder *Create ## codec (); | |
| 83 | |
| 84 // This macro defines the global creation entry point for each encoder. Each | |
| 85 // encoder implementation that registers with the encoder factory must call it. | |
| 86 #define DEFINE_ENCODER_CREATOR(codec) \ | |
| 87 SkImageEncoder *Create ## codec () { \ | |
| 88 return SkNEW( Sk ## codec ); \ | |
| 89 } | |
| 90 | |
| 91 // All the encoders known by Skia. Note that, depending on the compiler settings
, | |
| 92 // not all of these will be available | |
| 93 /** An ARGBImageEncoder will always write out | |
| 94 * bitmap.width() * bitmap.height() * 4 | |
| 95 * bytes. | |
| 96 */ | |
| 97 DECLARE_ENCODER_CREATOR(ARGBImageEncoder); | |
| 98 DECLARE_ENCODER_CREATOR(JPEGImageEncoder); | |
| 99 DECLARE_ENCODER_CREATOR(PNGImageEncoder); | |
| 100 DECLARE_ENCODER_CREATOR(KTXImageEncoder); | |
| 101 DECLARE_ENCODER_CREATOR(WEBPImageEncoder); | |
| 102 | |
| 103 #ifdef SK_BUILD_FOR_IOS | |
| 104 DECLARE_ENCODER_CREATOR(PNGImageEncoder_IOS); | |
| 105 #endif | 79 #endif |
| 106 | |
| 107 // Typedef to make registering encoder callback easier | |
| 108 // This has to be defined outside SkImageEncoder. :( | |
| 109 typedef SkTRegistry<SkImageEncoder*(*)(SkImageEncoder::Type)> SkImageEncoder_Enc
odeReg; | |
| 110 #endif | |
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