mirror of https://github.com/axmolengine/axmol.git
84 lines
2.5 KiB
C++
84 lines
2.5 KiB
C++
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef SkMovie_DEFINED
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#define SkMovie_DEFINED
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#include "SkRefCnt.h"
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#include "SkCanvas.h"
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class SkStream;
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class SkMovie : public SkRefCnt {
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public:
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/** Try to create a movie from the stream. If the stream format is not
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supported, return NULL.
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*/
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static SkMovie* DecodeStream(SkStream*);
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/** Try to create a movie from the specified file path. If the file is not
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found, or the format is not supported, return NULL. If a movie is
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returned, the stream may be retained by the movie (via ref()) until
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the movie is finished with it (by calling unref()).
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*/
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static SkMovie* DecodeFile(const char path[]);
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/** Try to create a movie from the specified memory.
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If the format is not supported, return NULL. If a movie is returned,
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the data will have been read or copied, and so the caller may free
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it.
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*/
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static SkMovie* DecodeMemory(const void* data, size_t length);
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SkMSec duration();
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int width();
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int height();
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int isOpaque();
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/** Specify the time code (between 0...duration) to sample a bitmap
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from the movie. Returns true if this time code generated a different
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bitmap/frame from the previous state (i.e. true means you need to
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redraw).
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*/
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bool setTime(SkMSec);
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// return the right bitmap for the current time code
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const SkBitmap& bitmap();
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protected:
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struct Info {
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SkMSec fDuration;
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int fWidth;
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int fHeight;
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bool fIsOpaque;
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};
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virtual bool onGetInfo(Info*) = 0;
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virtual bool onSetTime(SkMSec) = 0;
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virtual bool onGetBitmap(SkBitmap*) = 0;
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// visible for subclasses
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SkMovie();
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private:
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Info fInfo;
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SkMSec fCurrTime;
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SkBitmap fBitmap;
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bool fNeedBitmap;
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void ensureInfo();
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};
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#endif
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