updateGeometry();
}
-static inline int clamp(int x)
-{
- if (x <= 0) {
- return 0;
- }
- if (x > 255) {
- return 255;
- }
- return x;
-}
-
void ImageViewer::slotUpdate()
{
m_convertedImage =
bool opaque = opaqueCheckBox->isChecked();
bool alpha = alphaCheckBox->isChecked();
- if (lowerValue != 0.0 || upperValue != 1.0 || opaque || alpha) {
- /*
- * Rescale the image.
- *
- * XXX: This would be much more useful if done with the full precision
- * of the original image
- */
-
- int offset = - lowerValue * 255;
- int scale = 256 / (upperValue - lowerValue);
-
- m_convertedImage =
- m_convertedImage.convertToFormat(QImage::Format_ARGB32);
-
- if (0) {
- qDebug()
- << "offset = " << offset << "\n"
- << "scale = " << scale << "\n";
- }
-
- int width = m_convertedImage.width();
- int height = m_convertedImage.height();
-
- int aMask = opaque ? 0xff : 0;
-
- for (int y = 0; y < height; ++y) {
- QRgb *scanline = (QRgb *)m_convertedImage.scanLine(y);
- for (int x = 0; x < width; ++x) {
- QRgb pixel = scanline[x];
- int r = qRed(pixel);
- int g = qGreen(pixel);
- int b = qBlue(pixel);
- int a = qAlpha(pixel);
- if (alpha) {
- a = clamp(((a + offset) * scale) >> 8);
- scanline[x] = qRgba(a, a, a, 0xff);
- } else {
- r = clamp(((r + offset) * scale) >> 8);
- g = clamp(((g + offset) * scale) >> 8);
- b = clamp(((b + offset) * scale) >> 8);
- a |= aMask;
- scanline[x] = qRgba(r, g, b, a);
- }
- }
- }
+ m_convertedImage = ApiSurface::qimageFromRawImage(m_image,
+ lowerValue, upperValue,
+ opaque, alpha);
+
+ if (flipCheckBox->isChecked()) {
+ m_convertedImage = m_convertedImage.mirrored(false, true);
}
m_pixelWidget->setSurface(m_convertedImage);
QString label = tr("Pixel: ");
+ /* If the image is flipped, substitute y to match */
+ if (flipCheckBox->isChecked()) {
+ y = m_convertedImage.height() - y - 1;
+ }
+
if (m_image->channelType == image::TYPE_UNORM8) {
label += createPixelLabel<unsigned char>(m_image, x, y);
} else {