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Resolution calculations performed by functions

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Added functions for dpi <-> ppm transformations and used in all plugins.
This commit is contained in:
Mirco Miranda
2025-09-17 12:22:44 +02:00
parent 14286a6ab0
commit a4e18734bd
10 changed files with 120 additions and 68 deletions
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12
src/imageformats/psd.cpp
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@@ -596,17 +596,21 @@ static bool setResolution(QImage &img, const PSDImageResourceSection &irs)
s >> i32; // Horizontal resolution in pixels per inch.
if (i32 <= 0)
return false;
auto hres = fixedPointToDouble(i32);
auto hres = dpi2ppm(fixedPointToDouble(i32));
s.skipRawData(4); // Display data (not used here)
s >> i32; // Vertial resolution in pixels per inch.
if (i32 <= 0)
return false;
auto vres = fixedPointToDouble(i32);
auto vres = dpi2ppm(fixedPointToDouble(i32));
img.setDotsPerMeterX(hres * 1000 / 25.4);
img.setDotsPerMeterY(vres * 1000 / 25.4);
if (hres > 0) {
img.setDotsPerMeterX(hres);
}
if (vres > 0) {
img.setDotsPerMeterY(vres);
}
return true;
}