Merge pull request #137 from Nheko-Reborn/blurhash

Experimental Blurhash support

1 files changed, 38 insertions, 0 deletions

diff --git a/src/BlurhashProvider.cpp b/src/BlurhashProvider.cpp
new file mode 100644

index 00000000..08dc2d40
--- /dev/null
+++ b/src/BlurhashProvider.cpp
@@ -0,0 +1,38 @@
+#include "BlurhashProvider.h"
+
+#include <algorithm>
+
+#include <QUrl>
+
+#include "blurhash.hpp"
+
+void
+BlurhashResponse::run()
+{
+        if (m_requestedSize.width() < 0 || m_requestedSize.height() < 0) {
+                m_error = QStringLiteral("Blurhash needs size request");
+                emit finished();
+                return;
+        }
+        if (m_requestedSize.width() == 0 || m_requestedSize.height() == 0) {
+                m_image = QImage(m_requestedSize, QImage::Format_RGB32);
+                m_image.fill(QColor(0, 0, 0));
+                emit finished();
+                return;
+        }
+
+        auto decoded = blurhash::decode(QUrl::fromPercentEncoding(m_id.toUtf8()).toStdString(),
+                                        m_requestedSize.width(),
+                                        m_requestedSize.height(),
+                                        4);
+        if (decoded.image.empty()) {
+                m_error = QStringLiteral("Failed decode!");
+                emit finished();
+                return;
+        }
+
+        QImage image(decoded.image.data(), decoded.width, decoded.height, QImage::Format_RGB32);
+
+        m_image = image.copy();
+        emit finished();
+}