reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame^] | 1 | #include "SkMovie.h" |
| 2 | #include "SkCanvas.h" |
| 3 | #include "SkPaint.h" |
| 4 | |
| 5 | // We should never see this in normal operation since our time values are |
| 6 | // 0-based. So we use it as a sentinal. |
| 7 | #define UNINITIALIZED_MSEC ((SkMSec)-1) |
| 8 | |
| 9 | SkMovie::SkMovie() |
| 10 | { |
| 11 | fInfo.fDuration = UNINITIALIZED_MSEC; // uninitialized |
| 12 | fCurrTime = UNINITIALIZED_MSEC; // uninitialized |
| 13 | fNeedBitmap = true; |
| 14 | } |
| 15 | |
| 16 | void SkMovie::ensureInfo() |
| 17 | { |
| 18 | if (fInfo.fDuration == UNINITIALIZED_MSEC && !this->onGetInfo(&fInfo)) |
| 19 | memset(&fInfo, 0, sizeof(fInfo)); // failure |
| 20 | } |
| 21 | |
| 22 | SkMSec SkMovie::duration() |
| 23 | { |
| 24 | this->ensureInfo(); |
| 25 | return fInfo.fDuration; |
| 26 | } |
| 27 | |
| 28 | int SkMovie::width() |
| 29 | { |
| 30 | this->ensureInfo(); |
| 31 | return fInfo.fWidth; |
| 32 | } |
| 33 | |
| 34 | int SkMovie::height() |
| 35 | { |
| 36 | this->ensureInfo(); |
| 37 | return fInfo.fHeight; |
| 38 | } |
| 39 | |
| 40 | int SkMovie::isOpaque() |
| 41 | { |
| 42 | this->ensureInfo(); |
| 43 | return fInfo.fIsOpaque; |
| 44 | } |
| 45 | |
| 46 | bool SkMovie::setTime(SkMSec time) |
| 47 | { |
| 48 | SkMSec dur = this->duration(); |
| 49 | if (time > dur) |
| 50 | time = dur; |
| 51 | |
| 52 | bool changed = false; |
| 53 | if (time != fCurrTime) |
| 54 | { |
| 55 | fCurrTime = time; |
| 56 | changed = this->onSetTime(time); |
| 57 | fNeedBitmap |= changed; |
| 58 | } |
| 59 | return changed; |
| 60 | } |
| 61 | |
| 62 | const SkBitmap& SkMovie::bitmap() |
| 63 | { |
| 64 | if (fCurrTime == UNINITIALIZED_MSEC) // uninitialized |
| 65 | this->setTime(0); |
| 66 | |
| 67 | if (fNeedBitmap) |
| 68 | { |
| 69 | if (!this->onGetBitmap(&fBitmap)) // failure |
| 70 | fBitmap.reset(); |
| 71 | fNeedBitmap = false; |
| 72 | } |
| 73 | return fBitmap; |
| 74 | } |
| 75 | |
| 76 | //////////////////////////////////////////////////////////////////// |
| 77 | |
| 78 | #include "SkStream.h" |
| 79 | |
| 80 | SkMovie* SkMovie::DecodeMemory(const void* data, size_t length) { |
| 81 | SkMemoryStream stream(data, length, false); |
| 82 | return SkMovie::DecodeStream(&stream); |
| 83 | } |
| 84 | |
| 85 | SkMovie* SkMovie::DecodeFile(const char path[]) |
| 86 | { |
| 87 | SkMovie* movie = NULL; |
| 88 | |
| 89 | SkFILEStream stream(path); |
| 90 | if (stream.isValid()) { |
| 91 | movie = SkMovie::DecodeStream(&stream); |
| 92 | } |
| 93 | #ifdef SK_DEBUG |
| 94 | else { |
| 95 | SkDebugf("Movie file not found <%s>\n", path); |
| 96 | } |
| 97 | #endif |
| 98 | |
| 99 | return movie; |
| 100 | } |
| 101 | |