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/* 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;
}
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