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libobs: Fix flip calculations in bounding box

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This fixes flipping behaviour when positional alignement inside the
bounding box is other than centered, bringing it in line with the
behaviour when centered, i.e. flip the item in-place in the bounding
box.
This commit is contained in:
Penwywern 2023-07-06 22:46:43 +02:00 committed by Lain
parent cb5f65b529
commit 23ca4cf704
1 changed files with 8 additions and 2 deletions
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10
libobs/obs-scene.c
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@ -401,13 +401,19 @@ static void calculate_bounds_data(struct obs_scene_item *item,
width = (float)(*cx) * scale->x;
height = (float)(*cy) * scale->y;
width_diff = item->bounds.x - width;
height_diff = item->bounds.y - height;
/* Disregards flip when calculating size diff */
width_diff = item->bounds.x - fabsf(width);
height_diff = item->bounds.y - fabsf(height);
*cx = (uint32_t)item->bounds.x;
*cy = (uint32_t)item->bounds.y;
add_alignment(origin, item->bounds_align, (int)-width_diff,
(int)-height_diff);
/* Makes the item stay in-place in the box if flipped */
origin->x += (width < 0.0f) ? width : 0.0f;
origin->y += (height < 0.0f) ? height : 0.0f;
}
static inline uint32_t calc_cx(const struct obs_scene_item *item,