Add cmpa, bloc, bdat, sbix, and EBSC + minor fix + add language and encoding IDs

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 155 insertions, 0 deletions

diff --git a/bloc.c b/bloc.c
new file mode 100644
index 0000000..13e7c60
--- /dev/null
+++ b/bloc.c
@@ -0,0 +1,155 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+
+
+int
+libparsesfnt_parse_bloc(
+			const char *data, size_t size,
+			struct libparsesfnt_bloc *infop,
+			const struct libparsesfnt_tabdir_entry *tag)
+{
+	return PARSE(LIBPARSESFNT_BLOC__, tag->offset, 0, 0, 0, 1, tag);
+}
+
+
+int
+libparsesfnt_parse_bloc_v2_0_size_entries(
+			const char *data, size_t size,
+			struct libparsesfnt_bloc_v2_0_size_entry *infop,
+			const struct libparsesfnt_tabdir_entry *tag,
+			size_t first, size_t count)
+{
+	return PARSE(LIBPARSESFNT_BLOC_V2_0_SIZE_ENTRY__, tag->offset, 8, 0, first, count, tag);
+}
+
+
+int
+libparsesfnt_parse_bloc_v2_0_index_entries(
+			const char *data, size_t size,
+			struct libparsesfnt_bloc_v2_0_index_entry *infop,
+			const struct libparsesfnt_tabdir_entry *tag,
+			  const struct libparsesfnt_bloc_v2_0_size_entry *size_entry,
+			size_t first, size_t count)
+{
+	return PARSE(LIBPARSESFNT_BLOC_V2_0_INDEX_ENTRY__, tag->offset, size_entry->index_subtable_array_offset,
+	             0, first, count, tag);
+}
+
+
+int
+libparsesfnt_parse_bloc_v2_0_index_subentry(
+			const char *data, size_t size,
+			struct libparsesfnt_bloc_v2_0_index_subentry *infop,
+			const struct libparsesfnt_tabdir_entry *tag,
+			  const struct libparsesfnt_bloc_v2_0_size_entry *size_entry,
+			  const struct libparsesfnt_bloc_v2_0_index_entry *index_entry)
+{
+	return PARSE(LIBPARSESFNT_BLOC_V2_0_INDEX_SUBENTRY__, tag->offset, size_entry->index_subtable_array_offset,
+	             index_entry->additional_offset_to_index_subtable, 0, 1, tag);
+}
+
+
+int
+libparsesfnt_parse_bloc_v2_0_format_1_offset_entries(
+			const char *data, size_t size,
+			uint32_t *infop,
+			const struct libparsesfnt_tabdir_entry *tag,
+			  const struct libparsesfnt_bloc_v2_0_size_entry *size_entry,
+			  const struct libparsesfnt_bloc_v2_0_index_entry *index_entry,
+			size_t first, size_t count)
+{
+	return PARSE("4", (size_t)tag->offset + (size_t)size_entry->index_subtable_array_offset,
+	             index_entry->additional_offset_to_index_subtable, 8, first, count, tag);
+}
+
+
+int
+libparsesfnt_parse_bloc_v2_0_format_2_header(
+			const char *data, size_t size,
+			struct libparsesfnt_bloc_v2_0_index_subentry_format_2_header *infop,
+			const struct libparsesfnt_tabdir_entry *tag,
+			  const struct libparsesfnt_bloc_v2_0_size_entry *size_entry,
+			  const struct libparsesfnt_bloc_v2_0_index_entry *index_entry)
+{
+	int ret;
+	ret = PARSE(LIBPARSESFNT_BLOC_V2_0_INDEX_SUBENTRY_FORMAT_2_HEADER__,
+	            (size_t)tag->offset + (size_t)size_entry->index_subtable_array_offset,
+	            index_entry->additional_offset_to_index_subtable, 8, 0, 1, tag);
+	if (!ret) {
+		if (!infop->image_size) {
+			errno = EBFONT;
+			return -1;
+		}
+	}
+	return ret;
+}
+
+
+int
+libparsesfnt_parse_bloc_v2_0_format_3_offset_entries(
+			const char *data, size_t size,
+			uint16_t *infop,
+			const struct libparsesfnt_tabdir_entry *tag,
+			  const struct libparsesfnt_bloc_v2_0_size_entry *size_entry,
+			  const struct libparsesfnt_bloc_v2_0_index_entry *index_entry,
+			size_t first, size_t count)
+{
+	return PARSE("2", (size_t)tag->offset + (size_t)size_entry->index_subtable_array_offset,
+	             index_entry->additional_offset_to_index_subtable, 8, first, count, tag);
+}
+
+
+int
+libparsesfnt_get_bloc_v2_0_format_1_offset(
+			size_t *offsetp,
+			const uint32_t offset,
+			const struct libparsesfnt_bloc_v2_0_index_subentry *subentry)
+{
+#if SIZE_MAX == UINT32_MAX /* we know that SIZE_MAX >= UINT32_MAX */
+	if (offset > UINT32_MAX - subentry->image_data_offset) {
+		errno = EFBIG;
+		return -1;
+	}
+#endif
+	*offsetp = (size_t)offset + (size_t)subentry->image_data_offset;
+	return 0;
+}
+
+
+int
+libparsesfnt_get_bloc_v2_0_format_2_offset(
+			size_t *offsetp,
+			size_t glyph_index,
+			const struct libparsesfnt_bloc_v2_0_index_entry *entry,
+			  const struct libparsesfnt_bloc_v2_0_index_subentry *subentry,
+			  struct libparsesfnt_bloc_v2_0_index_subentry_format_2_header *header)
+{
+	if (glyph_index < (size_t)entry->first_glyph_index) {
+		errno = EINVAL;
+		return -1;
+	}
+	*offsetp = glyph_index - (size_t)entry->first_glyph_index;
+	if (*offsetp > (SIZE_MAX - (size_t)subentry->image_data_offset) / (size_t)header->image_size) {
+		errno = EFBIG;
+		return -1;
+	}
+	*offsetp = *offsetp * header->image_size + subentry->image_data_offset;
+	return 0;
+}
+
+
+int
+libparsesfnt_get_bloc_v2_0_format_3_offset(
+			size_t *offsetp,
+			const uint16_t offset,
+			const struct libparsesfnt_bloc_v2_0_index_subentry *subentry)
+{
+#if SIZE_MAX == UINT32_MAX /* we know that SIZE_MAX >= UINT32_MAX */
+	if ((uint32_t)offset > UINT32_MAX - subentry->image_data_offset) {
+		errno = EFBIG;
+		return -1;
+	}
+#endif
+	*offsetp = (size_t)offset + (size_t)subentry->image_data_offset;
+	return 0;
+}