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58 lines
1.8 KiB
58 lines
1.8 KiB
4 months ago
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/*
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* Copyright (C) 2013 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 RASTERMILL_FRAME_SEQUENCE_H
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#define RASTERMILL_FRAME_SEQUENCE_H
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#include "Stream.h"
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#include "Color.h"
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class FrameSequenceState {
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public:
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/**
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* Produces a frame of animation in the output buffer, drawing (at minimum) the delta since
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* previousFrameNr (the current contents of the buffer), or from scratch if previousFrameNr is
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* negative
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*
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* Returns frame's delay time in milliseconds.
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*/
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virtual long drawFrame(int frameNr,
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Color8888* outputPtr, int outputPixelStride, int previousFrameNr) = 0;
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virtual ~FrameSequenceState() {}
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};
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class FrameSequence {
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public:
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/**
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* Creates a FrameSequence using data from the data stream
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*
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* Type determined by header information in the stream
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*/
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static FrameSequence* create(Stream* stream);
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virtual ~FrameSequence() {}
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virtual int getWidth() const = 0;
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virtual int getHeight() const = 0;
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virtual bool isOpaque() const = 0;
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virtual int getFrameCount() const = 0;
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virtual int getDefaultLoopCount() const = 0;
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virtual jobject getRawByteBuffer() const = 0;
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virtual FrameSequenceState* createState() const = 0;
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};
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#endif //RASTERMILL_FRAME_SEQUENCE_H
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