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output: add adaptive_sync_enabled property
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8afc1ed68c
commit
7017fa95b8
2 changed files with 35 additions and 0 deletions
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@ -46,6 +46,12 @@ struct wlr_output_cursor {
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} events;
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};
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enum wlr_output_adaptive_sync_status {
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WLR_OUTPUT_ADAPTIVE_SYNC_DISABLED,
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WLR_OUTPUT_ADAPTIVE_SYNC_ENABLED,
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WLR_OUTPUT_ADAPTIVE_SYNC_UNKNOWN, // requested, but maybe disabled
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};
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enum wlr_output_state_field {
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WLR_OUTPUT_STATE_BUFFER = 1 << 0,
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WLR_OUTPUT_STATE_DAMAGE = 1 << 1,
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@ -53,6 +59,7 @@ enum wlr_output_state_field {
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WLR_OUTPUT_STATE_ENABLED = 1 << 3,
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WLR_OUTPUT_STATE_SCALE = 1 << 4,
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WLR_OUTPUT_STATE_TRANSFORM = 1 << 5,
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WLR_OUTPUT_STATE_ADAPTIVE_SYNC_ENABLED = 1 << 6,
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};
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enum wlr_output_state_buffer_type {
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@ -74,6 +81,7 @@ struct wlr_output_state {
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bool enabled;
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float scale;
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enum wl_output_transform transform;
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bool adaptive_sync_enabled;
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// only valid if WLR_OUTPUT_STATE_BUFFER
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enum wlr_output_state_buffer_type buffer_type;
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@ -126,6 +134,7 @@ struct wlr_output {
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float scale;
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enum wl_output_subpixel subpixel;
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enum wl_output_transform transform;
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enum wlr_output_adaptive_sync_status adaptive_sync_status;
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bool needs_frame;
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// damage for cursors and fullscreen surface, in output-local coordinates
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@ -246,6 +255,16 @@ void wlr_output_set_custom_mode(struct wlr_output *output, int32_t width,
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*/
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void wlr_output_set_transform(struct wlr_output *output,
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enum wl_output_transform transform);
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/**
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* Enables or disables adaptive sync (ie. variable refresh rate) on this
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* output. This is just a hint, the backend is free to ignore this setting.
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*
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* When enabled, compositors can submit frames a little bit later than the
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* deadline without dropping a frame.
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*
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* Adaptive sync is double-buffered state, see `wlr_output_commit`.
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*/
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void wlr_output_enable_adaptive_sync(struct wlr_output *output, bool enabled);
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/**
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* Sets a scale for the output.
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*
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@ -240,6 +240,18 @@ void wlr_output_set_scale(struct wlr_output *output, float scale) {
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output->pending.scale = scale;
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}
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void wlr_output_enable_adaptive_sync(struct wlr_output *output, bool enabled) {
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bool currently_enabled =
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output->adaptive_sync_status != WLR_OUTPUT_ADAPTIVE_SYNC_DISABLED;
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if (currently_enabled == enabled) {
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output->pending.committed &= ~WLR_OUTPUT_STATE_ADAPTIVE_SYNC_ENABLED;
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return;
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}
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output->pending.committed |= WLR_OUTPUT_STATE_ADAPTIVE_SYNC_ENABLED;
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output->pending.adaptive_sync_enabled = enabled;
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}
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void wlr_output_set_subpixel(struct wlr_output *output,
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enum wl_output_subpixel subpixel) {
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if (output->subpixel == subpixel) {
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@ -487,6 +499,10 @@ bool wlr_output_commit(struct wlr_output *output) {
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wlr_log(WLR_ERROR, "Tried to modeset a disabled output");
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goto error;
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}
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if (!enabled && output->pending.committed & WLR_OUTPUT_STATE_ADAPTIVE_SYNC_ENABLED) {
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wlr_log(WLR_ERROR, "Tried to enable adaptive sync on a disabled output");
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goto error;
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}
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struct timespec now;
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clock_gettime(CLOCK_MONOTONIC, &now);
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