SkMipmapBuilder.h

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/*
 * Copyright 2020 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
 
#ifndef SkMipmapBuilder_DEFINED
#define SkMipmapBuilder_DEFINED
 
#include "include/core/SkRefCnt.h"
 
class SkImage;
class SkMipmap;
class SkPixmap;
struct SkImageInfo;
 
class SkMipmapBuilder {
public:
    SkMipmapBuilder(const SkImageInfo&);
    ~SkMipmapBuilder();
 
    int countLevels() const;
    SkPixmap level(int index) const;
 
    /**
     *  If these levels are compatible with src, return a new Image that combines src's base level
     *  with these levels as mip levels. If not compatible, this returns nullptr.
     */
    sk_sp<SkImage> attachTo(const sk_sp<const SkImage>& src);
 
private:
    sk_sp<SkMipmap> fMM;
};
 
#endif