svn commit: r349049 - head/usr.bin/vtfontcvt

[Ed Maste]

Author: emaste
Date: Sat Jun 15 09:15:58 2019
New Revision: 349049
URL: https://svnweb.freebsd.org/changeset/base/349049

Log:
  vtfontcvt: add comments in add_glyph
  
  During review for PR 205707.
  
  Event:		Berlin Devsummit 2019

Modified:
  head/usr.bin/vtfontcvt/vtfontcvt.c

Modified: head/usr.bin/vtfontcvt/vtfontcvt.c
==============================================================================
--- head/usr.bin/vtfontcvt/vtfontcvt.c	Sat Jun 15 07:23:06 2019	(r349048)
+++ head/usr.bin/vtfontcvt/vtfontcvt.c	Sat Jun 15 09:15:58 2019	(r349049)
@@ -176,6 +176,7 @@ add_glyph(const uint8_t *bytes, unsigned int map_idx, 
 	glyph_total++;
 	glyph_count[map_idx]++;
 
+	/* Return existing glyph if we have an identical one. */
 	hash = fnv_32_buf(bytes, wbytes * height, FNV1_32_INIT) % FONTCVT_NHASH;
 	SLIST_FOREACH(gl, &glyph_hash[hash], g_hash) {
 		if (memcmp(gl->g_data, bytes, wbytes * height) == 0) {
@@ -184,6 +185,7 @@ add_glyph(const uint8_t *bytes, unsigned int map_idx, 
 		}
 	}
 
+	/* Allocate new glyph. */
 	gl = xmalloc(sizeof *gl);
 	gl->g_data = xmalloc(wbytes * height);
 	memcpy(gl->g_data, bytes, wbytes * height);