/*
 * Copyright 2015 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "SkCodecImageGenerator.h"

SkImageGenerator* SkCodecImageGenerator::NewFromEncodedCodec(SkData* data) {
    SkCodec* codec = SkCodec::NewFromData(data);
    if (nullptr == codec) {
        return nullptr;
    }

    return new SkCodecImageGenerator(codec, data);
}

SkCodecImageGenerator::SkCodecImageGenerator(SkCodec* codec, SkData* data)
    : INHERITED(codec->getInfo())
    , fCodec(codec)
    , fData(SkRef(data))
{}

SkData* SkCodecImageGenerator::onRefEncodedData(SK_REFENCODEDDATA_CTXPARAM) {
    return SkRef(fData.get());
}

bool SkCodecImageGenerator::onGetPixels(const SkImageInfo& info, void* pixels, size_t rowBytes,
        SkPMColor ctable[], int* ctableCount) {

    SkCodec::Result result = fCodec->getPixels(info, pixels, rowBytes, nullptr, ctable,
            ctableCount);
    switch (result) {
        case SkCodec::kSuccess:
        case SkCodec::kIncompleteInput:
            return true;
        default:
            return false;
    }
}

bool SkCodecImageGenerator::onGetYUV8Planes(SkISize sizes[3], void* planes[3], size_t rowBytes[3],
        SkYUVColorSpace* colorSpace) {
    return false;
}