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/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkEncoder_DEFINED
#define SkEncoder_DEFINED
#include "include/core/SkPixmap.h"
#include "include/private/base/SkAPI.h"
#include "include/private/base/SkNoncopyable.h"
#include "include/private/base/SkTemplates.h"
#include <cstddef>
#include <cstdint>
class SK_API SkEncoder : SkNoncopyable {
public:
/**
* A single frame to be encoded into an animated image.
*
* If a frame does not fit in the canvas size, this is an error.
* TODO(skia:13705): Add offsets when we have support for an encoder that supports using
* offsets.
*/
struct SK_API Frame {
/**
* Pixmap of the frame.
*/
SkPixmap pixmap;
/**
* Duration of the frame in millseconds.
*/
int duration;
};
/**
* Encode |numRows| rows of input. If the caller requests more rows than are remaining
* in the src, this will encode all of the remaining rows. |numRows| must be greater
* than zero.
*/
bool encodeRows(int numRows);
virtual ~SkEncoder() {}
protected:
virtual bool onEncodeRows(int numRows) = 0;
SkEncoder(const SkPixmap& src, size_t storageBytes)
: fSrc(src)
, fCurrRow(0)
, fStorage(storageBytes)
{}
const SkPixmap& fSrc;
int fCurrRow;
skia_private::AutoTMalloc<uint8_t> fStorage;
};
#endif
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