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/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef RASTERMILL_FRAME_SEQUENCE_H
#define RASTERMILL_FRAME_SEQUENCE_H
#include "Stream.h"
#include "Color.h"
class FrameSequenceState {
public:
/**
* Produces a frame of animation in the output buffer, drawing (at minimum) the delta since
* previousFrameNr (the current contents of the buffer), or from scratch if previousFrameNr is
* negative
*
* Returns frame's delay time in milliseconds.
*/
virtual long drawFrame(int frameNr,
Color8888* outputPtr, int outputPixelStride, int previousFrameNr) = 0;
virtual ~FrameSequenceState() {}
};
class FrameSequence {
public:
/**
* Creates a FrameSequence using data from the data stream
*
* Type determined by header information in the stream
*/
static FrameSequence* create(Stream* stream);
virtual ~FrameSequence() {}
virtual int getWidth() const = 0;
virtual int getHeight() const = 0;
virtual bool isOpaque() const = 0;
virtual int getFrameCount() const = 0;
virtual int getDefaultLoopCount() const = 0;
virtual jobject getRawByteBuffer() const = 0;
virtual FrameSequenceState* createState() const = 0;
};
#endif //RASTERMILL_FRAME_SEQUENCE_H
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