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SDL2: Support highdpi (#14703)

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and handle DPI changes at runtime
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grorp 2024-06-16 17:49:42 +02:00 • committed by GitHub
parent 7a64527db5
commit a9cca5e76c
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12 changed files with 84 additions and 47 deletions
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16
src/client/renderingengine.cpp
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@ -462,18 +462,14 @@ const VideoDriverInfo &RenderingEngine::getVideoDriverInfo(irr::video::E_DRIVER_
float RenderingEngine::getDisplayDensity()
{
float user_factor = g_settings->getFloat("display_density_factor", 0.5f, 5.0f);
#ifndef __ANDROID__
static float cached_display_density = [&] {
float dpi = get_raw_device()->getDisplayDensity();
// fall back to manually specified dpi
if (dpi == 0.0f)
dpi = g_settings->getFloat("screen_dpi");
return dpi / 96.0f;
}();
return std::max(cached_display_density * g_settings->getFloat("display_density_factor"), 0.5f);
float dpi = get_raw_device()->getDisplayDensity();
if (dpi == 0.0f)
dpi = 96.0f;
return std::max(dpi / 96.0f * user_factor, 0.5f);
#else // __ANDROID__
return porting::getDisplayDensity();
return porting::getDisplayDensity() * user_factor;
#endif // __ANDROID__
}