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Support tables with 0 length (which previously failed in multiple places).

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This commit is contained in:
Garret Rieger
2017-07-19 17:32:38 -07:00
parent cbea7b962e
commit 12141fdaf2
2 changed files with 16 additions and 15 deletions
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src/normalize.cc
+3 -6
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@@ -52,7 +52,7 @@ bool WriteNormalizedLoca(int index_fmt, int num_glyphs, Font* font) {
loca_table->buffer.resize(Round4(num_glyphs + 1) * glyph_sz);
loca_table->length = (num_glyphs + 1) * glyph_sz;
uint8_t* glyf_dst = &glyf_table->buffer[0];
uint8_t* glyf_dst = num_glyphs ? &glyf_table->buffer[0] : NULL;
uint8_t* loca_dst = &loca_table->buffer[0];
uint32_t glyf_offset = 0;
size_t loca_offset = 0;
@@ -78,16 +78,13 @@ bool WriteNormalizedLoca(int index_fmt, int num_glyphs, Font* font) {
}
glyf_offset += glyf_dst_size;
}
if (glyf_offset == 0) {
return false;
}
StoreLoca(index_fmt, glyf_offset, &loca_offset, loca_dst);
glyf_table->buffer.resize(glyf_offset);
glyf_table->data = &glyf_table->buffer[0];
glyf_table->data = glyf_offset ? &glyf_table->buffer[0] : NULL;
glyf_table->length = glyf_offset;
loca_table->data = &loca_table->buffer[0];
loca_table->data = loca_offset ? &loca_table->buffer[0] : NULL;
return true;
}