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Select best KMS mode depending on refresh rate.

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Try to match as closely as possible.
This commit is contained in:
Themaister 2014-04-06 15:29:59 +02:00
parent 3b6616f2cb
commit 0ae933ea8b
1 changed files with 20 additions and 6 deletions
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26
gfx/context/drm_egl_ctx.c
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@ -274,7 +274,7 @@ static bool gfx_ctx_init(void *data)
{
int i;
unsigned monitor_index;
int gpu_index = 0;
unsigned gpu_index = 0;
unsigned monitor = max(g_settings.video.monitor_index, 1);
const char *gpu;
@ -371,8 +371,6 @@ nextgpu:
goto nextgpu;
}
g_drm_mode = &g_connector->modes[0];
for (i = 0; i < g_connector->count_modes; i++)
{
RARCH_LOG("[KMS/EGL]: Mode %d: (%s) %d x %d, %u Hz\n", i,
@ -530,13 +528,29 @@ static bool gfx_ctx_set_video_mode(void *data,
g_drm_mode = &g_connector->modes[0];
else
{
// Find first match.
// Try to match g_settings.video.refresh_rate as closely as possible.
// Lower resolutions tend to have multiple supported refresh rates as well.
float minimum_fps_diff = 0.0f;
// Find best match.
for (i = 0; i < g_connector->count_modes; i++)
{
if (width == g_connector->modes[i].hdisplay && height == g_connector->modes[i].vdisplay)
if (width != g_connector->modes[i].hdisplay || height != g_connector->modes[i].vdisplay)
continue;
if (!g_drm_mode)
{
g_drm_mode = &g_connector->modes[i];
break;
minimum_fps_diff = g_drm_mode->vrefresh - g_settings.video.refresh_rate;
}
else
{
float diff = g_connector->modes[i].vrefresh - g_settings.video.refresh_rate;
if (diff < minimum_fps_diff)
{
g_drm_mode = &g_connector->modes[i];
minimum_fps_diff = diff;
}
}
}
}