static int hex_display(EditState *s, DisplayState *ds, int offset)
{
int j, len, ateof;
int offset1, offset2;
unsigned char b;
display_bol(ds);
ds->style = QE_STYLE_COMMENT;
display_printf(ds, -1, -1, "%08x ", offset);
ateof = 0;
len = s->b->total_size - offset;
if (len > s->disp_width)
len = s->disp_width;
if (s->mode == &hex_mode) {
ds->style = QE_STYLE_FUNCTION;
for (j = 0; j < s->disp_width; j++) {
display_char(ds, -1, -1, ' ');
offset1 = offset + j;
offset2 = offset1 + 1;
if (j < len) {
eb_read(s->b, offset1, &b, 1);
display_printhex(ds, offset1, offset2, b, 2);
} else {
if (!ateof) {
ateof = 1;
} else {
offset1 = offset2 = -1;
}
ds->cur_hex_mode = s->hex_mode;
display_printf(ds, offset1, offset2, " ");
ds->cur_hex_mode = 0;
}
if ((j & 7) == 7)
display_char(ds, -1, -1, ' ');
}
display_char(ds, -1, -1, ' ');
}
ds->style = 0;
display_char(ds, -1, -1, ' ');
ateof = 0;
for (j = 0; j < s->disp_width; j++) {
offset1 = offset + j;
offset2 = offset1 + 1;
if (j < len) {
eb_read(s->b, offset1, &b, 1);
} else {
b = ' ';
if (!ateof) {
ateof = 1;
} else {
offset1 = offset2 = -1;
}
}
display_char(ds, offset1, offset2, to_disp(b));
}
display_eol(ds, -1, -1);
if (len >= s->disp_width)
return offset + len;
else
return -1;
}
static int mpeg_display(EditState *s, DisplayState *ds, int offset)
{
unsigned int startcode;
int ret, badchars, offset_start;
unsigned char buf[4];
/* search start code */
badchars = 0;
display_bol(ds);
display_printf(ds, -1, -1, "%08x:", offset);
for (;;) {
ret = eb_read(s->b, offset, buf, 4);
if (ret == 0) {
if (badchars)
display_eol(ds, -1, -1);
goto the_end;
}
if (ret == 4) {
startcode = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
if ((startcode & 0xffffff00) == 0x00000100) {
if (badchars) {
display_eol(ds, -1, -1);
display_bol(ds);
display_printf(ds, -1, -1, "%08x:", offset);
}
break;
}
}
/* display unknown chars */
display_printf(ds, -1, -1, " [");
display_printhex(ds, offset, offset + 1, buf[0], 2);
display_printf(ds, -1, -1, "]");
offset++;
if (++badchars == 8) {
badchars = 0;
display_eol(ds, -1, -1);
goto the_end;
}
}
offset_start = offset;
offset += 4;
display_printf(ds, offset_start, offset, " [%08x] ", startcode);
switch (startcode) {
case SEQ_END_CODE:
display_printf(ds, -1, -1, "SEQ_END");
break;
case SEQ_START_CODE:
display_printf(ds, -1, -1, "SEQUENCE");
break;
case PICTURE_START_CODE:
display_printf(ds, -1, -1, "PICTURE");
break;
case GOP_START_CODE:
display_printf(ds, -1, -1, "GOP");
break;
case EXT_START_CODE:
display_printf(ds, -1, -1, "EXT");
break;
case PACK_START_CODE:
display_printf(ds, -1, -1, "PACK");
break;
case SYSTEM_HEADER_START_CODE:
display_printf(ds, -1, -1, "SYSTEM");
break;
default:
if (startcode >= SLICE_MIN_START_CODE &&
startcode <= SLICE_MAX_START_CODE) {
display_printf(ds, -1, -1, "SLICE %d", startcode & 0xff);
} else {
display_printf(ds, -1, -1, "UNKNOWN", startcode);
}
break;
}
display_eol(ds, -1, -1);
the_end:
return offset;
}
