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[cairo-scaled-font-subsets] Shortcut empty subset.

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If the font_subset if empty, avoid allocating zero bytes and iterating
over the empty hash table.
This commit is contained in:
Chris Wilson 2007-05-11 10:14:57 +01:00
parent c175cf7b83
commit 5b2b008048
1 changed files with 4 additions and 0 deletions
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4
src/cairo-scaled-font-subsets.c
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@ -618,6 +618,10 @@ _cairo_scaled_font_subsets_foreach_internal (cairo_scaled_font_subsets_t
collection.glyphs_size = font_subsets->max_glyphs_per_scaled_subset_used;
else
collection.glyphs_size = font_subsets->max_glyphs_per_unscaled_subset_used;
if (! collection.glyphs_size)
return CAIRO_STATUS_SUCCESS;
collection.glyphs = malloc (collection.glyphs_size * sizeof(unsigned long));
if (collection.glyphs == NULL)
return CAIRO_STATUS_NO_MEMORY;