SPAN_DECLARE(int) t4_rx_end_page(t4_rx_state_t *s)
{
int length;
length = 0;
if (s->image_put_handler)
s->image_put_handler((void *) &s->decoder, NULL, 0);
switch (s->current_decoder)
{
case 0:
length = s->decoder.no_decoder.buf_ptr;
break;
case T4_COMPRESSION_T4_1D | T4_COMPRESSION_T4_2D | T4_COMPRESSION_T6:
length = t4_t6_decode_get_image_length(&s->decoder.t4_t6);
break;
case T4_COMPRESSION_T85 | T4_COMPRESSION_T85_L0:
length = t85_decode_get_image_length(&s->decoder.t85);
break;
#if defined(SPANDSP_SUPPORT_T88)
case T4_COMPRESSION_T88:
length = t88_decode_get_image_length(&s->decoder.t88);
break;
#endif
case T4_COMPRESSION_T42_T81:
length = t42_decode_get_image_length(&s->decoder.t42);
if (s->decoder.t42.samples_per_pixel == 3)
s->tiff.image_type = T4_IMAGE_TYPE_COLOUR_8BIT;
else
s->tiff.image_type = T4_IMAGE_TYPE_GRAY_8BIT;
break;
case T4_COMPRESSION_T43:
length = t43_decode_get_image_length(&s->decoder.t43);
break;
#if defined(SPANDSP_SUPPORT_T45)
case T4_COMPRESSION_T45:
length = t45_decode_get_image_length(&s->decoder.t45);
break;
#endif
}
if (length == 0)
return -1;
if (s->tiff.tiff_file)
{
if (write_tiff_image(s) == 0)
s->current_page++;
s->tiff.image_size = 0;
}
else
{
s->current_page++;
}
return 0;
}
SPAN_DECLARE(int) t4_rx_end_page(t4_state_t *s)
{
int row;
int i;
if (s->line_encoding == T4_COMPRESSION_ITU_T6)
{
/* Push enough zeros through the decoder to flush out any remaining codes */
for (i = 0; i < 13; i++)
t4_rx_put_bit(s, 0);
}
if (s->t4_t6_rx.curr_bad_row_run)
{
if (s->t4_t6_rx.curr_bad_row_run > s->t4_t6_rx.longest_bad_row_run)
s->t4_t6_rx.longest_bad_row_run = s->t4_t6_rx.curr_bad_row_run;
s->t4_t6_rx.curr_bad_row_run = 0;
}
if (s->image_size == 0)
return -1;
if (s->t4_t6_rx.row_write_handler)
{
for (row = 0; row < s->image_length; row++)
{
if (s->t4_t6_rx.row_write_handler(s->t4_t6_rx.row_write_user_data, s->image_buffer + row*s->bytes_per_row, s->bytes_per_row) < 0)
{
span_log(&s->logging, SPAN_LOG_WARNING, "Write error at row %d.\n", row);
break;
}
}
/* Write a blank row to indicate the end of the image. */
if (s->t4_t6_rx.row_write_handler(s->t4_t6_rx.row_write_user_data, NULL, 0) < 0)
span_log(&s->logging, SPAN_LOG_WARNING, "Write error at row %d.\n", row);
}
else
{
write_tiff_image(s);
}
s->t4_t6_rx.rx_bits = 0;
s->t4_t6_rx.rx_skip_bits = 0;
s->t4_t6_rx.rx_bitstream = 0;
s->t4_t6_rx.consecutive_eols = EOLS_TO_END_ANY_RX_PAGE;
s->image_size = 0;
return 0;
}
SPAN_DECLARE(int) t4_rx_end_page(t4_rx_state_t *s)
{
int length;
length = 0;
switch (s->line_encoding)
{
case T4_COMPRESSION_ITU_T4_1D:
case T4_COMPRESSION_ITU_T4_2D:
case T4_COMPRESSION_ITU_T6:
t4_t6_decode_put(&s->decoder.t4_t6, NULL, 0);
length = t4_t6_decode_get_image_length(&s->decoder.t4_t6);
break;
case T4_COMPRESSION_ITU_T42:
t42_decode_put(&s->decoder.t42, NULL, 0);
length = t42_decode_get_image_length(&s->decoder.t42);
break;
#if defined(SPANDSP_SUPPORT_T43)
case T4_COMPRESSION_ITU_T43:
t43_decode_put(&s->decoder.t43, NULL, 0);
length = t43_decode_get_image_length(&s->decoder.t43);
break;
#endif
case T4_COMPRESSION_ITU_T85:
case T4_COMPRESSION_ITU_T85_L0:
t85_decode_put(&s->decoder.t85, NULL, 0);
length = t85_decode_get_image_length(&s->decoder.t85);
break;
}
if (length == 0)
return -1;
if (s->tiff.tiff_file)
{
if (write_tiff_image(s) == 0)
s->current_page++;
s->tiff.image_size = 0;
}
else
{
s->current_page++;
}
return 0;
}
SPAN_DECLARE(int) t4_rx_end_page(t4_rx_state_t *s)
{
int length;
length = 0;
switch (s->metadata.compression)
{
case T4_COMPRESSION_T4_1D:
case T4_COMPRESSION_T4_2D:
case T4_COMPRESSION_T6:
t4_t6_decode_put(&s->decoder.t4_t6, NULL, 0);
length = t4_t6_decode_get_image_length(&s->decoder.t4_t6);
break;
case T4_COMPRESSION_T85:
case T4_COMPRESSION_T85_L0:
t85_decode_put(&s->decoder.t85, NULL, 0);
length = t85_decode_get_image_length(&s->decoder.t85);
break;
#if defined(SPANDSP_SUPPORT_T88)
case T4_COMPRESSION_T88:
t88_decode_put(&s->decoder.t88, NULL, 0);
length = t88_decode_get_image_length(&s->decoder.t88);
break;
#endif
case T4_COMPRESSION_T42_T81:
t42_decode_put(&s->decoder.t42, NULL, 0);
length = t42_decode_get_image_length(&s->decoder.t42);
if (s->decoder.t42.samples_per_pixel == 3)
select_tiff_compression(s, T4_IMAGE_TYPE_COLOUR_8BIT);
else
select_tiff_compression(s, T4_IMAGE_TYPE_GRAY_8BIT);
break;
#if defined(SPANDSP_SUPPORT_T43)
case T4_COMPRESSION_T43:
t43_decode_put(&s->decoder.t43, NULL, 0);
length = t43_decode_get_image_length(&s->decoder.t43);
break;
#endif
#if defined(SPANDSP_SUPPORT_T45)
case T4_COMPRESSION_T45:
t45_decode_put(&s->decoder.t45, NULL, 0);
length = t45_decode_get_image_length(&s->decoder.t45);
break;
#endif
}
if (length == 0)
return -1;
if (s->tiff.tiff_file)
{
if (write_tiff_image(s) == 0)
s->current_page++;
s->tiff.image_size = 0;
}
else
{
s->current_page++;
}
return 0;
}