1 files changed, 42 insertions, 0 deletions
diff --git a/src/BlurhashProvider.cpp b/src/BlurhashProvider.cpp
new file mode 100644
index 00000000..a5530a98
--- /dev/null
+++ b/src/BlurhashProvider.cpp
@@ -0,0 +1,42 @@
+#include "BlurhashProvider.h"
+
+#include <algorithm>
+
+#include <QUrl>
+
+#include "blurhash.hpp"
+
+QImage
+BlurhashProvider::requestImage(const QString &id, QSize *size, const QSize &requestedSize)
+{
+ QSize sz = requestedSize;
+ if (sz.width() < 1 || sz.height() < 1)
+ return QImage();
+
+ if (size)
+ *size = sz;
+
+ auto decoded = blurhash::decode(
+ QUrl::fromPercentEncoding(id.toUtf8()).toStdString(), sz.width(), sz.height());
+ if (decoded.image.empty()) {
+ *size = QSize();
+ return QImage();
+ }
+
+ QImage image(sz, QImage::Format_RGB888);
+
+ for (int y = 0; y < sz.height(); y++) {
+ for (int x = 0; x < sz.width(); x++) {
+ int base = (y * sz.width() + x) * 3;
+ image.setPixel(x,
+ y,
+ qRgb(decoded.image[base],
+ decoded.image[base + 1],
+ decoded.image[base + 2]));
+ }
+ }
+
+ // std::copy(decoded.image.begin(), decoded.image.end(), image.bits());
+
+ return image;
+}
|
