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font: don't bother creating a cairo surface for zero-width glyphs

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Daniel Eklöf 2019-08-13 20:44:30 +02:00
parent 8035bbfbdb
commit 9e7106018e
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GPG key ID: 5BBD4992C116573F
1 changed files with 4 additions and 1 deletions
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font.c
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@ -364,6 +364,9 @@ glyph_for_wchar(struct font *font, wchar_t wc, struct glyph *glyph)
bitmap->pixel_mode == FT_PIXEL_MODE_GRAY ||
bitmap->pixel_mode == FT_PIXEL_MODE_BGRA);
if (bitmap->width == 0)
goto err;
/* Map FT pixel format to cairo surface format */
cairo_format_t cr_format =
bitmap->pixel_mode == FT_PIXEL_MODE_MONO ? CAIRO_FORMAT_A1 :
@ -466,7 +469,7 @@ font_glyph_for_wc(struct font *font, wchar_t wc)
assert(font->cache[hash_idx] == NULL);
font->cache[hash_idx] = hash_entry;
}
assert(hash_entry != NULL);
tll_push_back(*hash_entry, glyph);