Add thumbnailer

thumbnailer/main.cpp

@@ -0,0 +1,48 @@
+#include <QCoreApplication>
+#include <QCommandLineParser>
+#include "../rawimage.h"
+#include "../loadimage.h"
+
+bool OpenGLES = false;
+
+int main(int argc, char *argv[])
+{
+    QCoreApplication a(argc, argv);
+
+    QCommandLineParser parser;
+    parser.addOption({{"s", "size"}, "Size of the thumbnail in pixels (default: 128)", "size", "128"});
+    parser.addPositionalArgument("input", "Input image file");
+    parser.addPositionalArgument("output", "Output image file");
+    parser.addHelpOption();
+
+    parser.process(a);
+
+    QStringList args = parser.positionalArguments();
+
+    if(args.size() < 2)
+        return 1;
+
+    QString input = args[0];
+    QString output = args[1];
+
+    ImageInfoData info;
+    std::shared_ptr<RawImage> rawImage;
+    if(!loadImage(input, info, rawImage))
+        return 1;
+
+    if(!rawImage)
+        return 2;
+
+    rawImage->convertToType(RawImage::UINT8);
+
+    QImage img((const uchar*)rawImage->data(), rawImage->width(), rawImage->height(), QImage::Format_RGBA8888);
+    bool ok = false;
+    int size = parser.value("s").toInt(&ok);
+    if(!ok)size = 128;
+    img = img.scaled(size, size, Qt::KeepAspectRatio);
+    img.save(output, "png");
+
+    //rawImage->convertTosRGB();
+
+    return 0;
+}