thirdparty/scummvm
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SDL: Clip DPI scaling factor to ensure we get a reasonable value

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This commit is contained in:
Thierry Crozat 2023-02-10 22:53:07 +00:00
parent 7cb69f91f7
commit fb8648c820
1 changed files with 4 additions and 1 deletions
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5
backends/platform/sdl/sdl-window.cpp
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@ -24,6 +24,7 @@
#include "backends/platform/sdl/sdl-window.h"
#include "common/textconsole.h"
#include "common/util.h"
#include "icons/scummvm.xpm"
@ -292,7 +293,9 @@ float SdlWindow::getDpiScalingFactor() const {
getDisplayDpi(&dpi, &defaultDpi);
debug(4, "dpi: %g default: %g", dpi, defaultDpi);
float ratio = dpi / defaultDpi;
return ratio;
// Getting the DPI can be unreliable, so clamp the scaling factor to make sure
// we do not return unreasonable values.
return CLIP(ratio, 1.0f, 4.0f);
}
float SdlWindow::getSdlDpiScalingFactor() const {