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Fix for sun/moon tonemaps: don't upscale 1px images.
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Warr1024 authored and Zeno- committed Mar 23, 2015
1 parent 15d9cd3 commit 6cf7c89236d6b222f53ca9c8d681d6cde656bea1
Showing 1 changed file with 7 additions and 2 deletions.
@@ -192,13 +192,18 @@ video::IImage *textureMinSizeUpscale(video::IVideoDriver *driver, video::IImage
if(orig == NULL)
return orig;
s32 scaleto = g_settings->getS32("texture_min_size");
if (scaleto > 0) {
if (scaleto > 1) {
const core::dimension2d<u32> dim = orig->getDimension();

// Don't upscale 1px images. They don't benefit from it anyway
// (wouldn't have been blurred) and MIGHT be sun/moon tonemaps.
if ((dim.Width <= 1) || (dim.Height <= 1))
return orig;

/* Calculate scaling needed to make the shortest texture dimension
* equal to the target minimum. If e.g. this is a vertical frames
* animation, the short dimension will be the real size.
*/
const core::dimension2d<u32> dim = orig->getDimension();
u32 xscale = scaleto / dim.Width;
u32 yscale = scaleto / dim.Height;
u32 scale = (xscale > yscale) ? xscale : yscale;

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