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, 132 insertions, 0 deletions

diff --git a/sbix.c b/sbix.c
new file mode 100644
index 0000000..5bc67ca
--- /dev/null
+++ b/sbix.c
@@ -0,0 +1,132 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+
+
+int
+libparsesfnt_parse_sbix(
+			const char *data, size_t size,
+			struct libparsesfnt_sbix *infop,
+			const struct libparsesfnt_tabdir_entry *tag)
+{
+	return PARSE(LIBPARSESFNT_SBIX__, tag->offset, 0, 0, 0, 1, tag);
+}
+
+
+int
+libparsesfnt_parse_sbix_v1_strike_offset_entries(
+			const char *data, size_t size,
+			uint32_t *infop,
+			const struct libparsesfnt_tabdir_entry *tag,
+			size_t first, size_t count)
+{
+	return PARSE("4", tag->offset, 8, 0, first, count, tag);
+}
+
+
+int
+libparsesfnt_parse_sbix_v1_strike_entry(
+			const char *data, size_t size,
+			struct libparsesfnt_sbix_v1_strike_entry *infop,
+			const struct libparsesfnt_tabdir_entry *tag, size_t strike_offset)
+{
+	return PARSE(LIBPARSESFNT_SBIX_V1_STRIKE_ENTRY__, tag->offset, strike_offset, 0, 0, 1, tag);
+}
+
+
+int
+libparsesfnt_parse_sbix_v1_glyph_data_offset_entries(
+			const char *data, size_t size,
+			uint32_t *infop,
+			const struct libparsesfnt_tabdir_entry *tag, size_t strike_offset,
+			size_t first, size_t count)
+{
+	return PARSE("4", tag->offset, strike_offset, 4, first, count, tag);
+}
+
+
+int
+libparsesfnt_parse_sbix_v1_glyph_data_entry(
+			const char *data, size_t size,
+			struct libparsesfnt_sbix_v1_glyph_data_entry *infop,
+			const struct libparsesfnt_tabdir_entry *tag,
+			  size_t strike_offset, size_t glyph_data_offset, size_t next_glyphs_data_offset)
+{
+	int ret;
+	size_t image_data_length;
+	if (next_glyphs_data_offset < glyph_data_offset)
+		goto ebfont;
+	image_data_length = next_glyphs_data_offset - glyph_data_offset;
+	if (!image_data_length) {
+		errno = EINVAL;
+		return -1;
+	} else if (image_data_length < 8) {
+		goto ebfont;
+	}
+	ret = PARSE(LIBPARSESFNT_SBIX_V1_GLYPH_DATA_ENTRY__, tag->offset, strike_offset, glyph_data_offset, 0, 1, tag);
+	if (!ret) {
+		infop->libparsesfnt_image_data_offset = (size_t)tag->offset + (size_t)strike_offset + (size_t)glyph_data_offset + 8;
+		infop->libparsesfnt_image_data_length = image_data_length - 8;
+		if (infop->libparsesfnt_image_data_length > size - infop->libparsesfnt_image_data_offset)
+			goto ebfont;
+	}
+	return ret;
+
+ebfont:
+	errno = EBFONT;
+	return -1;
+}
+
+
+int
+libparsesfnt_parse_sbix_v1_image_data_dupe(
+			const char *data, size_t size,
+			struct libparsesfnt_sbix_v1_image_data_dupe *infop,
+			const struct libparsesfnt_sbix_v1_glyph_data_entry *glyph_data)
+{
+	return PARSE(LIBPARSESFNT_SBIX_V1_IMAGE_DATA_DUPE__, glyph_data->libparsesfnt_image_data_offset, 0, 0, 0, 1, NULL);
+}
+
+
+int
+libparsesfnt_parse_sbix_v1_image_data_mask(
+			const char *data, size_t size,
+			struct libparsesfnt_sbix_v1_image_data_mask *infop,
+			const struct libparsesfnt_sbix_v1_glyph_data_entry *glyph_data)
+{
+	int ret;
+	if (glyph_data->libparsesfnt_image_data_length < 8 ||
+	    glyph_data->libparsesfnt_image_data_offset > SIZE_MAX - 8)
+			goto ebfont;
+	ret = PARSE(LIBPARSESFNT_SBIX_V1_IMAGE_DATA_MASK__, glyph_data->libparsesfnt_image_data_offset, 0, 0, 0, 1, NULL);
+	if (!ret) {
+		infop->libparsesfnt_image_data_offset = glyph_data->libparsesfnt_image_data_offset + 8;
+		infop->libparsesfnt_image_data_length = glyph_data->libparsesfnt_image_data_length - 8;
+		if (infop->libparsesfnt_image_data_length > size - infop->libparsesfnt_image_data_offset)
+			goto ebfont;
+	}
+	return ret;
+
+ebfont:
+	errno = EBFONT;
+	return -1;
+}
+
+
+int
+libparsesfnt_parse_sbix_v1_mask(
+			const char *data, size_t size,
+			struct libparsesfnt_sbix_v1_mask *infop,
+			const struct libparsesfnt_tabdir_entry *tag,
+			  const struct libparsesfnt_sbix_v1_image_data_mask *image_data)
+{
+	int ret;
+	ret = PARSE(LIBPARSESFNT_SBIX_V1_MASK__, tag->offset, image_data->mask_offset, 0, 0, 1, NULL);
+	if (!ret) {
+		infop->libparsesfnt_mask_offset = (size_t)tag->offset + (size_t)image_data->mask_offset + 16;
+		if ((size_t)infop->mask_length > size - infop->libparsesfnt_mask_offset) {
+			errno = EBFONT;
+			return -1;
+		}
+	}
+	return ret;
+}