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u/pacing: Add minimum compositor time

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This commit is contained in:
Jakob Bornecrantz 2023-05-08 12:09:04 +01:00
parent f5e33e59c8
commit 8c97342732
1 changed files with 8 additions and 3 deletions
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11
src/xrt/auxiliary/util/u_pacing_compositor_fake.c
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@ -29,6 +29,8 @@
*
*/
DEBUG_GET_ONCE_FLOAT_OPTION(min_comp_time_ms, "U_PACING_COMP_MIN_TIME_MS", 3.0f)
/*!
* A very simple pacer that tries it best to pace a compositor. Used when the
* compositor can't get any good or limited feedback from the presentation
@ -284,9 +286,12 @@ u_pc_fake_create(uint64_t estimated_frame_period_ns, uint64_t now_ns, struct u_p
// 20% of the frame time.
ft->comp_time_ns = get_percent_of_time(estimated_frame_period_ns, 20);
// Or at least 2ms.
if (ft->comp_time_ns < U_TIME_1MS_IN_NS * 2) {
ft->comp_time_ns = U_TIME_1MS_IN_NS * 2;
// Or at least a certain amount of time.
float min_comp_time_ms_f = debug_get_float_option_min_comp_time_ms();
uint64_t min_comp_time_ns = time_ms_f_to_ns(min_comp_time_ms_f);
if (ft->comp_time_ns < min_comp_time_ns) {
ft->comp_time_ns = min_comp_time_ns;
}
// Make the next present time be in the future.