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/* See LICENSE file for copyright and license details. */
#include "common.h"
int
libparsepcf_get_accelerators(const char *file, size_t size,
const struct libparsepcf_table *table,
struct libparsepcf_accelerators *out)
{
int msb = table->format & LIBPARSEPCF_BYTE;
int with_ink_bounds = table->format & LIBPARSEPCF_ACCELERATOR_WITH_INK_BOUNDS;
size_t pos;
(void) size;
if (table->size < 24 + (with_ink_bounds ? 4 : 2) * 12)
goto ebfont;
pos = table->offset;
if (table->format != libparsepcf_parse_lsb_uint32__(&file[pos]))
goto ebfont;
pos += 4;
out->no_overlap = !!file[pos + 0];
out->constant_metrics = !!file[pos + 1];
out->terminal_font = !!file[pos + 2];
out->constant_width = !!file[pos + 3];
out->ink_inside = !!file[pos + 4];
out->ink_metrics = !!file[pos + 5];
out->draw_rtl = !!file[pos + 6];
out->have_ink_bounds = !!with_ink_bounds;
pos += 8;
out->font_ascent = PARSE_INT32(&file[pos + 0], msb);
out->font_descent = PARSE_INT32(&file[pos + 4], msb);
out->max_overlap = PARSE_INT32(&file[pos + 8], msb);
pos += 12;
out->min_bounds.left_side_bearing = PARSE_INT16(&file[pos + 0], msb);
out->min_bounds.right_side_bearing = PARSE_INT16(&file[pos + 2], msb);
out->min_bounds.character_width = PARSE_INT16(&file[pos + 4], msb);
out->min_bounds.character_ascent = PARSE_INT16(&file[pos + 6], msb);
out->min_bounds.character_descent = PARSE_INT16(&file[pos + 8], msb);
out->min_bounds.character_attributes = PARSE_UINT16(&file[pos + 10], msb);
pos += 12;
out->max_bounds.left_side_bearing = PARSE_INT16(&file[pos + 0], msb);
out->max_bounds.right_side_bearing = PARSE_INT16(&file[pos + 2], msb);
out->max_bounds.character_width = PARSE_INT16(&file[pos + 4], msb);
out->max_bounds.character_ascent = PARSE_INT16(&file[pos + 6], msb);
out->max_bounds.character_descent = PARSE_INT16(&file[pos + 8], msb);
out->max_bounds.character_attributes = PARSE_UINT16(&file[pos + 10], msb);
pos += 12;
if (with_ink_bounds) {
out->min_ink_bounds.left_side_bearing = PARSE_INT16(&file[pos + 0], msb);
out->min_ink_bounds.right_side_bearing = PARSE_INT16(&file[pos + 2], msb);
out->min_ink_bounds.character_width = PARSE_INT16(&file[pos + 4], msb);
out->min_ink_bounds.character_ascent = PARSE_INT16(&file[pos + 6], msb);
out->min_ink_bounds.character_descent = PARSE_INT16(&file[pos + 8], msb);
out->min_ink_bounds.character_attributes = PARSE_UINT16(&file[pos + 10], msb);
pos += 12;
out->max_ink_bounds.left_side_bearing = PARSE_INT16(&file[pos + 0], msb);
out->max_ink_bounds.right_side_bearing = PARSE_INT16(&file[pos + 2], msb);
out->max_ink_bounds.character_width = PARSE_INT16(&file[pos + 4], msb);
out->max_ink_bounds.character_ascent = PARSE_INT16(&file[pos + 6], msb);
out->max_ink_bounds.character_descent = PARSE_INT16(&file[pos + 8], msb);
out->max_ink_bounds.character_attributes = PARSE_UINT16(&file[pos + 10], msb);
pos += 12;
} else {
memcpy(&out->min_ink_bounds, &out->min_bounds, sizeof(out->min_bounds));
memcpy(&out->max_ink_bounds, &out->max_bounds, sizeof(out->max_bounds));
}
return 0;
ebfont:
errno = EBFONT;
return -1;
}
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