/*

 * Copyright 2023 Google LLC

 *

 * Use of this source code is governed by a BSD-style license that can be

 * found in the LICENSE file.

 */

#include "src/core/SkMipmapBuilder.h"

#include "include/core/SkImage.h"

#include "include/core/SkPixmap.h"

#include "include/core/SkTypes.h"

#include "src/core/SkMipmap.h"

struct SkImageInfo;

SkMipmapBuilder::SkMipmapBuilder(const SkImageInfo& info) {

    fMM = sk_sp<SkMipmap>(SkMipmap::Build({info, nullptr, 0},

                                          /* factoryProc= */ nullptr,

                                          /* computeContents= */ false));

}

SkMipmapBuilder::~SkMipmapBuilder() {}

int SkMipmapBuilder::countLevels() const {

    return fMM ? fMM->countLevels() : 0;

}

SkPixmap SkMipmapBuilder::level(int index) const {

    SkPixmap pm;

    SkMipmap::Level level;

    if (fMM && fMM->getLevel(index, &level)) {

        pm = level.fPixmap;

    }

    return pm;

}

sk_sp<SkImage> SkMipmapBuilder::attachTo(const sk_sp<const SkImage>& src) {

    return src->withMipmaps(fMM);

}