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29 lines
797 B
C
29 lines
797 B
C
#ifndef WLR_UTIL_REGION_H
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#define WLR_UTIL_REGION_H
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#include <pixman.h>
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#include <wayland-server.h>
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/**
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* Scales a region, ie. multiplies all its coordinates by `scale`.
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*
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* The resulting coordinates are rounded up or down so that the new region is
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* at least as big as the original one.
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*/
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void wlr_region_scale(pixman_region32_t *dst, pixman_region32_t *src,
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float scale);
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/**
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* Applies a transform to a region inside a box of size `width` x `height`.
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*/
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void wlr_region_transform(pixman_region32_t *dst, pixman_region32_t *src,
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enum wl_output_transform transform, int width, int height);
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/**
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* Expands the region of `distance`. If `distance` is negative, it shrinks the
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* region.
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*/
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void wlr_region_expand(pixman_region32_t *dst, pixman_region32_t *src,
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int distance);
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#endif
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