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43 lines
1.2 KiB
C++
43 lines
1.2 KiB
C++
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#include "BlurhashProvider.h"
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#include <algorithm>
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#include <QUrl>
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#include "blurhash.hpp"
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QImage
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BlurhashProvider::requestImage(const QString &id, QSize *size, const QSize &requestedSize)
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{
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QSize sz = requestedSize;
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if (sz.width() < 1 || sz.height() < 1)
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return QImage();
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if (size)
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*size = sz;
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auto decoded = blurhash::decode(
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QUrl::fromPercentEncoding(id.toUtf8()).toStdString(), sz.width(), sz.height());
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if (decoded.image.empty()) {
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*size = QSize();
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return QImage();
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}
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QImage image(sz, QImage::Format_RGB888);
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for (int y = 0; y < sz.height(); y++) {
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for (int x = 0; x < sz.width(); x++) {
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int base = (y * sz.width() + x) * 3;
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image.setPixel(x,
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y,
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qRgb(decoded.image[base],
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decoded.image[base + 1],
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decoded.image[base + 2]));
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}
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}
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// std::copy(decoded.image.begin(), decoded.image.end(), image.bits());
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return image;
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}
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