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authoremersion <contact@emersion.fr>2018-01-25 21:54:51 +0100
committeremersion <contact@emersion.fr>2018-01-25 21:54:51 +0100
commita98ece68d32031dbd81b0064fad659515fc09f76 (patch)
tree626792500c3a29cd0cd73583b369ee1c362d70fa /include/wlr/util
parent4223fbc76330f000a209c0f03426fd3867f21057 (diff)
util: add docs for wlr_region_scale
Diffstat (limited to 'include/wlr/util')
-rw-r--r--include/wlr/util/region.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/wlr/util/region.h b/include/wlr/util/region.h
index 416adbf2..e268436b 100644
--- a/include/wlr/util/region.h
+++ b/include/wlr/util/region.h
@@ -3,6 +3,12 @@
#include <pixman.h>
+/**
+ * Scales a region, ie. multiplies all its coordinates by `scale`.
+ *
+ * The resulting coordinates are rounded up or down so that the new region is
+ * at least as big as the original one.
+ */
void wlr_region_scale(pixman_region32_t *dst, pixman_region32_t *src,
float scale);