More accurate refresh rates (mHz)
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c436e76240
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3000b8615f
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@ -249,6 +249,20 @@ static struct wlr_output_impl output_impl = {
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.destroy = wlr_drm_output_destroy,
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};
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static uint32_t calculate_refresh_rate(drmModeModeInfo *mode) {
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uint32_t refresh = (mode->clock * 1000000LL / mode->htotal +
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mode->vtotal / 2) / mode->vtotal;
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if (mode->flags & DRM_MODE_FLAG_INTERLACE)
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refresh *= 2;
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if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
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refresh /= 2;
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if (mode->vscan > 1)
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refresh /= mode->vscan;
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return refresh;
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}
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void wlr_drm_scan_connectors(struct wlr_backend_state *state) {
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wlr_log(L_INFO, "Scanning DRM connectors");
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@ -321,14 +335,12 @@ void wlr_drm_scan_connectors(struct wlr_backend_state *state) {
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struct wlr_output_mode *mode = calloc(1,
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sizeof(struct wlr_output_mode));
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mode->width = _state->mode.hdisplay;
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// TODO: Calculate more accurate refresh rate
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// TODO: Check that this refresh rate is mHz
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mode->height = _state->mode.vdisplay;
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mode->refresh = calculate_refresh_rate(&_state->mode);
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mode->state = _state;
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wlr_log(L_INFO, " %"PRIu16"@%"PRIu16"@%"PRIu32,
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_state->mode.hdisplay, _state->mode.vdisplay,
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_state->mode.vrefresh);
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wlr_log(L_INFO, " %"PRIu32"@%"PRIu32"@%"PRIu32,
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mode->width, mode->height, mode->refresh);
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list_add(wlr_output->modes, mode);
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}
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@ -10,8 +10,8 @@ struct wlr_output_mode_state;
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struct wlr_output_mode {
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struct wlr_output_mode_state *state;
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uint32_t flags; // enum wl_output_mode
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int32_t width, height;
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int32_t refresh; // mHz
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uint32_t width, height;
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uint32_t refresh; // mHz
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};
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struct wlr_output_impl;
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