1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/include/images/SkMovie.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,80 @@
1.4 +
1.5 +/*
1.6 + * Copyright 2008 The Android Open Source Project
1.7 + *
1.8 + * Use of this source code is governed by a BSD-style license that can be
1.9 + * found in the LICENSE file.
1.10 + */
1.11 +
1.12 +
1.13 +#ifndef SkMovie_DEFINED
1.14 +#define SkMovie_DEFINED
1.15 +
1.16 +#include "SkRefCnt.h"
1.17 +#include "SkCanvas.h"
1.18 +
1.19 +class SkStreamRewindable;
1.20 +
1.21 +class SkMovie : public SkRefCnt {
1.22 +public:
1.23 + SK_DECLARE_INST_COUNT(SkMovie)
1.24 +
1.25 + /** Try to create a movie from the stream. If the stream format is not
1.26 + supported, return NULL.
1.27 + */
1.28 + static SkMovie* DecodeStream(SkStreamRewindable*);
1.29 + /** Try to create a movie from the specified file path. If the file is not
1.30 + found, or the format is not supported, return NULL. If a movie is
1.31 + returned, the stream may be retained by the movie (via ref()) until
1.32 + the movie is finished with it (by calling unref()).
1.33 + */
1.34 + static SkMovie* DecodeFile(const char path[]);
1.35 + /** Try to create a movie from the specified memory.
1.36 + If the format is not supported, return NULL. If a movie is returned,
1.37 + the data will have been read or copied, and so the caller may free
1.38 + it.
1.39 + */
1.40 + static SkMovie* DecodeMemory(const void* data, size_t length);
1.41 +
1.42 + SkMSec duration();
1.43 + int width();
1.44 + int height();
1.45 + int isOpaque();
1.46 +
1.47 + /** Specify the time code (between 0...duration) to sample a bitmap
1.48 + from the movie. Returns true if this time code generated a different
1.49 + bitmap/frame from the previous state (i.e. true means you need to
1.50 + redraw).
1.51 + */
1.52 + bool setTime(SkMSec);
1.53 +
1.54 + // return the right bitmap for the current time code
1.55 + const SkBitmap& bitmap();
1.56 +
1.57 +protected:
1.58 + struct Info {
1.59 + SkMSec fDuration;
1.60 + int fWidth;
1.61 + int fHeight;
1.62 + bool fIsOpaque;
1.63 + };
1.64 +
1.65 + virtual bool onGetInfo(Info*) = 0;
1.66 + virtual bool onSetTime(SkMSec) = 0;
1.67 + virtual bool onGetBitmap(SkBitmap*) = 0;
1.68 +
1.69 + // visible for subclasses
1.70 + SkMovie();
1.71 +
1.72 +private:
1.73 + Info fInfo;
1.74 + SkMSec fCurrTime;
1.75 + SkBitmap fBitmap;
1.76 + bool fNeedBitmap;
1.77 +
1.78 + void ensureInfo();
1.79 +
1.80 + typedef SkRefCnt INHERITED;
1.81 +};
1.82 +
1.83 +#endif
