[paint-extents] Comments
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@ -29,6 +29,12 @@
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#include "hb-paint.hh"
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#include "hb-draw.h"
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/*
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* This file implements bounds-extraction as well as boundedness
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* computation of COLRv1 fonts as described in:
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*
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* https://learn.microsoft.com/en-us/typography/opentype/spec/colr#glyph-metrics-and-boundedness
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*/
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typedef struct hb_extents_t
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{
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@ -240,6 +246,7 @@ struct hb_paint_extents_context_t {
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const hb_bounds_t src_bounds = groups.pop ();
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hb_bounds_t &backdrop_bounds = groups.tail ();
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// https://learn.microsoft.com/en-us/typography/opentype/spec/colr#format-32-paintcomposite
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switch ((int) mode)
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{
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case HB_PAINT_COMPOSITE_MODE_CLEAR:
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