The Tor Browser / file comparison
comparison: gfx/skia/trunk/src/images/SkMovie.cpp
gfx/skia/trunk/src/images/SkMovie.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:2f0ead8e1881 |
|---|---|
| 1 | |
| 2 /* | |
| 3 * Copyright 2011 Google Inc. | |
| 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 #include "SkMovie.h" | |
| 9 #include "SkCanvas.h" | |
| 10 #include "SkPaint.h" | |
| 11 | |
| 12 // We should never see this in normal operation since our time values are | |
| 13 // 0-based. So we use it as a sentinal. | |
| 14 #define UNINITIALIZED_MSEC ((SkMSec)-1) | |
| 15 | |
| 16 SkMovie::SkMovie() | |
| 17 { | |
| 18 fInfo.fDuration = UNINITIALIZED_MSEC; // uninitialized | |
| 19 fCurrTime = UNINITIALIZED_MSEC; // uninitialized | |
| 20 fNeedBitmap = true; | |
| 21 } | |
| 22 | |
| 23 void SkMovie::ensureInfo() | |
| 24 { | |
| 25 if (fInfo.fDuration == UNINITIALIZED_MSEC && !this->onGetInfo(&fInfo)) | |
| 26 memset(&fInfo, 0, sizeof(fInfo)); // failure | |
| 27 } | |
| 28 | |
| 29 SkMSec SkMovie::duration() | |
| 30 { | |
| 31 this->ensureInfo(); | |
| 32 return fInfo.fDuration; | |
| 33 } | |
| 34 | |
| 35 int SkMovie::width() | |
| 36 { | |
| 37 this->ensureInfo(); | |
| 38 return fInfo.fWidth; | |
| 39 } | |
| 40 | |
| 41 int SkMovie::height() | |
| 42 { | |
| 43 this->ensureInfo(); | |
| 44 return fInfo.fHeight; | |
| 45 } | |
| 46 | |
| 47 int SkMovie::isOpaque() | |
| 48 { | |
| 49 this->ensureInfo(); | |
| 50 return fInfo.fIsOpaque; | |
| 51 } | |
| 52 | |
| 53 bool SkMovie::setTime(SkMSec time) | |
| 54 { | |
| 55 SkMSec dur = this->duration(); | |
| 56 if (time > dur) | |
| 57 time = dur; | |
| 58 | |
| 59 bool changed = false; | |
| 60 if (time != fCurrTime) | |
| 61 { | |
| 62 fCurrTime = time; | |
| 63 changed = this->onSetTime(time); | |
| 64 fNeedBitmap |= changed; | |
| 65 } | |
| 66 return changed; | |
| 67 } | |
| 68 | |
| 69 const SkBitmap& SkMovie::bitmap() | |
| 70 { | |
| 71 if (fCurrTime == UNINITIALIZED_MSEC) // uninitialized | |
| 72 this->setTime(0); | |
| 73 | |
| 74 if (fNeedBitmap) | |
| 75 { | |
| 76 if (!this->onGetBitmap(&fBitmap)) // failure | |
| 77 fBitmap.reset(); | |
| 78 fNeedBitmap = false; | |
| 79 } | |
| 80 return fBitmap; | |
| 81 } | |
| 82 | |
| 83 //////////////////////////////////////////////////////////////////// | |
| 84 | |
| 85 #include "SkStream.h" | |
| 86 | |
| 87 SkMovie* SkMovie::DecodeMemory(const void* data, size_t length) { | |
| 88 SkMemoryStream stream(data, length, false); | |
| 89 return SkMovie::DecodeStream(&stream); | |
| 90 } | |
| 91 | |
| 92 SkMovie* SkMovie::DecodeFile(const char path[]) { | |
| 93 SkAutoTUnref<SkStreamRewindable> stream(SkStream::NewFromFile(path)); | |
| 94 return stream.get() ? SkMovie::DecodeStream(stream) : NULL; | |
| 95 } |
