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output: add explicit sync API

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This commit is contained in:
Simon Ser 2021-10-20 19:29:00 +02:00
parent 352c324276
commit 26aa4f5f5c
2 changed files with 57 additions and 0 deletions
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34
include/wlr/types/wlr_output.h
View file

@ -59,6 +59,8 @@ enum wlr_output_state_field {
WLR_OUTPUT_STATE_GAMMA_LUT = 1 << 7,
WLR_OUTPUT_STATE_RENDER_FORMAT = 1 << 8,
WLR_OUTPUT_STATE_SUBPIXEL = 1 << 9,
WLR_OUTPUT_STATE_WAIT_TIMELINE = 1 << 10,
WLR_OUTPUT_STATE_SIGNAL_TIMELINE = 1 << 11,
};
enum wlr_output_state_mode_type {
@ -93,6 +95,13 @@ struct wlr_output_state {
// only valid if WLR_OUTPUT_STATE_GAMMA_LUT
uint16_t *gamma_lut;
size_t gamma_lut_size;
// only valid if WLR_OUTPUT_STATE_WAIT_TIMELINE
struct wlr_render_timeline *wait_timeline;
uint64_t wait_point;
// only valid if WLR_OUTPUT_STATE_SIGNAL_TIMELINE
struct wlr_render_timeline *signal_timeline;
uint64_t signal_point;
};
struct wlr_output_impl;
@ -402,6 +411,31 @@ uint32_t wlr_output_preferred_read_format(struct wlr_output *output);
*/
void wlr_output_set_damage(struct wlr_output *output,
pixman_region32_t *damage);
/**
* Set a timeline point to wait on before displaying the next frame.
*
* The timeline must continue to remain valid until the next call to
* wlr_output_commit() or wlr_output_rollback(). Committing a wait timeline
* point without a buffer is invalid.
*
* There is only a single wait timeline point, waiting for multiple timeline
* points is unsupported.
*/
void wlr_output_set_wait_timeline(struct wlr_output *output,
struct wlr_render_timeline *timeline, uint64_t src_point);
/**
* Set a timeline point to be signalled when the frame is no longer being used
* by the backend.
*
* The timeline must continue to remain valid until the next call to
* wlr_output_commit() or wlr_output_rollback(). Committing a signal timeline
* point without a buffer is invalid.
*
* There is only a single signal timeline point, signalling multiple timeline
* points is unsupported.
*/
void wlr_output_set_signal_timeline(struct wlr_output *output,
struct wlr_render_timeline *timeline, uint64_t dst_point);
/**
* Test whether the pending output state would be accepted by the backend. If
* this function returns true, wlr_output_commit() can only fail due to a

23
types/output/output.c
View file

@ -479,6 +479,20 @@ void wlr_output_set_damage(struct wlr_output *output,
output->pending.committed |= WLR_OUTPUT_STATE_DAMAGE;
}
void wlr_output_set_wait_timeline(struct wlr_output *output,
struct wlr_render_timeline *timeline, uint64_t src_point) {
output->pending.committed |= WLR_OUTPUT_STATE_WAIT_TIMELINE;
output->pending.wait_timeline = timeline;
output->pending.wait_point = src_point;
}
void wlr_output_set_signal_timeline(struct wlr_output *output,
struct wlr_render_timeline *timeline, uint64_t dst_point) {
output->pending.committed |= WLR_OUTPUT_STATE_SIGNAL_TIMELINE;
output->pending.signal_timeline = timeline;
output->pending.signal_point = dst_point;
}
static void output_state_clear_gamma_lut(struct wlr_output_state *state) {
free(state->gamma_lut);
state->gamma_lut = NULL;
@ -606,6 +620,15 @@ static bool output_basic_test(struct wlr_output *output,
return false;
}
}
} else {
if (output->pending.committed & WLR_OUTPUT_STATE_WAIT_TIMELINE) {
wlr_log(WLR_DEBUG, "Tried to set wait timeline without a buffer");
return false;
}
if (output->pending.committed & WLR_OUTPUT_STATE_SIGNAL_TIMELINE) {
wlr_log(WLR_DEBUG, "Tried to set signal timeline without a buffer");
return false;
}
}
if (state->committed & WLR_OUTPUT_STATE_RENDER_FORMAT) {