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u/pacing: Add env variable to set present to display offset

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This commit is contained in:
Jakob Bornecrantz 2023-05-16 23:03:05 +01:00
parent 96e8aba770
commit e10a37d39a
1 changed files with 5 additions and 1 deletions
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6
src/xrt/auxiliary/util/u_pacing_compositor_fake.c
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@ -29,6 +29,7 @@
* *
*/ */
DEBUG_GET_ONCE_FLOAT_OPTION(present_to_display_offset_ms, "U_PACING_COMP_PRESENT_TO_DISPLAY_OFFSET_MS", 4.0f)
DEBUG_GET_ONCE_FLOAT_OPTION(min_comp_time_ms, "U_PACING_COMP_MIN_TIME_MS", 3.0f) DEBUG_GET_ONCE_FLOAT_OPTION(min_comp_time_ms, "U_PACING_COMP_MIN_TIME_MS", 3.0f)
/*! /*!
@ -275,9 +276,12 @@ u_pc_fake_create(uint64_t estimated_frame_period_ns, uint64_t now_ns, struct u_p
// To make sure the code can start from a non-zero frame id. // To make sure the code can start from a non-zero frame id.
ft->frame_id_generator = 5; ft->frame_id_generator = 5;
// An arbitrary guess, that happens to be based on Index.
float present_to_display_offset_ms = debug_get_float_option_present_to_display_offset_ms();
// Present to display offset, aka vblank to pixel turning into photons. // Present to display offset, aka vblank to pixel turning into photons.
ft->present_to_display_offset_ms = (struct u_var_draggable_f32){ ft->present_to_display_offset_ms = (struct u_var_draggable_f32){
.val = 4.0, // An arbitrary guess, that happens to be based on Index. .val = present_to_display_offset_ms,
.min = 1.0, // A lot of things assumes this is not negative. .min = 1.0, // A lot of things assumes this is not negative.
.step = 0.1, .step = 0.1,
.max = +40.0, .max = +40.0,