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scene: fix scaling of negative coordinates #3312

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scene: fix scaling of negative coordinates #3312

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6 changes: 3 additions & 3 deletions types/scene/wlr_scene.c
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Original file line number Diff line number Diff line change
Expand Up @@ -364,14 +364,14 @@ static void scene_node_get_size(struct wlr_scene_node *node,
}

static int scale_length(int length, int offset, float scale) {
return round((offset + length) * scale) - round(offset * scale);
return (int)((offset + length) * scale + .5f) - (int)(offset * scale + .5f);
}

static void scale_box(struct wlr_box *box, float scale) {
box->width = scale_length(box->width, box->x, scale);
box->height = scale_length(box->height, box->y, scale);
box->x = round(box->x * scale);
box->y = round(box->y * scale);
box->x = box->x * scale + .5f;
box->y = box->y * scale + .5f;
}

static void _scene_node_damage_whole(struct wlr_scene_node *node,
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