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[Video/KMSDRM]: Prefer largest compatible refresh rate by default.

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Hans-Kristian Arntzen
2026-07-14 17:48:15 +02:00
committed by Sam Lantinga
parent 758dab45af
commit 52ec5120a0
1 changed files with 16 additions and 0 deletions
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16
src/video/kmsdrm/SDL_kmsdrmvulkan.c
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@@ -156,6 +156,19 @@ char const * const *KMSDRM_Vulkan_GetInstanceExtensions(SDL_VideoDevice *_this,
return extensionsForKMSDRM;
}
static int SDLCALL display_mode_comparator(const void *a_opaque, const void *b_opaque)
{
const VkDisplayModePropertiesKHR *a = a_opaque;
const VkDisplayModePropertiesKHR *b = b_opaque;
if (a->parameters.refreshRate > b->parameters.refreshRate)
return -1;
else if (a->parameters.refreshRate < b->parameters.refreshRate)
return 1;
else
return 0;
}
/***********************************************************************/
// First thing to know is that we don't call vkCreateInstance() here.
// Instead, programs using SDL and Vulkan create their Vulkan instance
@@ -342,6 +355,9 @@ bool KMSDRM_Vulkan_CreateSurface(SDL_VideoDevice *_this,
display,
&mode_count, mode_props);
/* Sort the modes so that larger refresh rates come first. */
SDL_qsort(mode_props, mode_count, sizeof(*mode_props), display_mode_comparator);
/* Get a video mode equal to the window size among the predefined ones,
if possible.
REMEMBER: We have to get a small enough videomode for the window size,