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| 1 | |
| 2 /* | |
| 3 * Copyright 2008 The Android Open Source Project | |
| 4 * | |
| 5 * Use of this source code is governed by a BSD-style license that can be | |
| 6 * found in the LICENSE file. | |
| 7 */ | |
| 8 | |
| 9 | |
| 10 #ifndef SkMovie_DEFINED | |
| 11 #define SkMovie_DEFINED | |
| 12 | |
| 13 #include "SkRefCnt.h" | |
| 14 #include "SkCanvas.h" | |
| 15 | |
| 16 class SkStreamRewindable; | |
| 17 | |
| 18 class SkMovie : public SkRefCnt { | |
| 19 public: | |
| 20 | |
| 21 | |
| 22 /** Try to create a movie from the stream. If the stream format is not | |
| 23 supported, return NULL. | |
| 24 */ | |
| 25 static SkMovie* DecodeStream(SkStreamRewindable*); | |
| 26 /** Try to create a movie from the specified file path. If the file is not | |
| 27 found, or the format is not supported, return NULL. If a movie is | |
| 28 returned, the stream may be retained by the movie (via ref()) until | |
| 29 the movie is finished with it (by calling unref()). | |
| 30 */ | |
| 31 static SkMovie* DecodeFile(const char path[]); | |
| 32 /** Try to create a movie from the specified memory. | |
| 33 If the format is not supported, return NULL. If a movie is returned, | |
| 34 the data will have been read or copied, and so the caller may free | |
| 35 it. | |
| 36 */ | |
| 37 static SkMovie* DecodeMemory(const void* data, size_t length); | |
| 38 | |
| 39 SkMSec duration(); | |
| 40 int width(); | |
| 41 int height(); | |
| 42 int isOpaque(); | |
| 43 | |
| 44 /** Specify the time code (between 0...duration) to sample a bitmap | |
| 45 from the movie. Returns true if this time code generated a different | |
| 46 bitmap/frame from the previous state (i.e. true means you need to | |
| 47 redraw). | |
| 48 */ | |
| 49 bool setTime(SkMSec); | |
| 50 | |
| 51 // return the right bitmap for the current time code | |
| 52 const SkBitmap& bitmap(); | |
| 53 | |
| 54 protected: | |
| 55 struct Info { | |
| 56 SkMSec fDuration; | |
| 57 int fWidth; | |
| 58 int fHeight; | |
| 59 bool fIsOpaque; | |
| 60 }; | |
| 61 | |
| 62 virtual bool onGetInfo(Info*) = 0; | |
| 63 virtual bool onSetTime(SkMSec) = 0; | |
| 64 virtual bool onGetBitmap(SkBitmap*) = 0; | |
| 65 | |
| 66 // visible for subclasses | |
| 67 SkMovie(); | |
| 68 | |
| 69 private: | |
| 70 Info fInfo; | |
| 71 SkMSec fCurrTime; | |
| 72 SkBitmap fBitmap; | |
| 73 bool fNeedBitmap; | |
| 74 | |
| 75 void ensureInfo(); | |
| 76 | |
| 77 typedef SkRefCnt INHERITED; | |
| 78 }; | |
| 79 | |
| 80 #endif | |
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Chromium Code Reviews
Issue 2449213004:
Remove SkMovie and giflib (Closed)
