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d/vive: Get FoV from config struct

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This commit is contained in:
Jakob Bornecrantz 2023-04-22 23:36:06 +01:00
parent 9f5e8963a9
commit b84d1dfa00
1 changed files with 6 additions and 32 deletions
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38
src/xrt/drivers/vive/vive_device.c
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@ -1004,12 +1004,11 @@ vive_device_create(struct os_hid_device *mainboard_dev,
free(config);
}
// TODO: Replace hard coded values from OpenHMD with config
double w_meters = 0.122822 / 2.0;
double h_meters = 0.068234;
double lens_horizontal_separation = 0.057863;
double eye_to_screen_distance = 0.023226876441867737;
// FoV values from config.
d->base.hmd->distortion.fov[0] = d->config.distortion.fov[0];
d->base.hmd->distortion.fov[1] = d->config.distortion.fov[1];
// Per-view size.
uint32_t w_pixels = d->config.display.eye_target_width_in_pixels;
uint32_t h_pixels = d->config.display.eye_target_height_in_pixels;
@ -1018,48 +1017,23 @@ vive_device_create(struct os_hid_device *mainboard_dev,
d->base.hmd->screens[0].h_pixels = (int)h_pixels;
if (d->config.variant == VIVE_VARIANT_INDEX) {
lens_horizontal_separation = 0.06;
h_meters = 0.07;
// eye relief knob adjusts this around [0.0255(near)-0.275(far)]
eye_to_screen_distance = 0.0255;
d->base.hmd->screens[0].nominal_frame_interval_ns = (uint64_t)time_s_to_ns(1.0f / 144.0f);
} else {
d->base.hmd->screens[0].nominal_frame_interval_ns = (uint64_t)time_s_to_ns(1.0f / 90.0f);
}
double fov = 2 * atan2(w_meters - lens_horizontal_separation / 2.0, eye_to_screen_distance);
struct xrt_vec2 lens_center[2];
for (uint8_t eye = 0; eye < 2; eye++) {
struct xrt_view *v = &d->base.hmd->views[eye];
v->display.w_pixels = w_pixels;
v->display.h_pixels = h_pixels;
v->viewport.w_pixels = w_pixels;
v->viewport.h_pixels = h_pixels;
v->viewport.x_pixels = eye == 0 ? 0 : w_pixels;
v->viewport.y_pixels = 0;
lens_center[eye].y = (float)h_meters / 2.0f;
v->rot = u_device_rotation_ident;
}
// Left
lens_center[0].x = (float)(w_meters - lens_horizontal_separation / 2.0);
d->base.hmd->views[0].viewport.x_pixels = 0;
// Right
lens_center[1].x = (float)lens_horizontal_separation / 2.0f;
d->base.hmd->views[1].viewport.x_pixels = w_pixels;
for (uint8_t eye = 0; eye < 2; eye++) {
if (!math_compute_fovs(w_meters, (double)lens_center[eye].x, fov, h_meters, (double)lens_center[eye].y,
0, &d->base.hmd->distortion.fov[eye])) {
VIVE_ERROR(d, "Failed to compute the partial fields of view.");
free(d);
return NULL;
}
}
// Sensor setup.
precompute_sensor_transforms(d);
// Init threads.