SPAN_DECLARE(int) t4_rx_put(t4_rx_state_t *s, const uint8_t buf[], size_t len)
{
s->line_image_size += 8*len;
switch (s->metadata.compression)
{
case T4_COMPRESSION_T4_1D:
case T4_COMPRESSION_T4_2D:
case T4_COMPRESSION_T6:
return t4_t6_decode_put(&s->decoder.t4_t6, buf, len);
case T4_COMPRESSION_T85:
case T4_COMPRESSION_T85_L0:
return t85_decode_put(&s->decoder.t85, buf, len);
#if defined(SPANDSP_SUPPORT_T88)
case T4_COMPRESSION_T88:
break;
#endif
case T4_COMPRESSION_T42_T81:
return t42_decode_put(&s->decoder.t42, buf, len);
#if defined(SPANDSP_SUPPORT_T43)
case T4_COMPRESSION_T43:
return t43_decode_put(&s->decoder.t43, buf, len);
#endif
#if defined(SPANDSP_SUPPORT_T45)
case T4_COMPRESSION_T45:
break;
#endif
}
return T4_DECODE_OK;
}
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_put(t4_rx_state_t *s, const uint8_t buf[], size_t len)
{
s->line_image_size += 8*len;
switch (s->line_encoding)
{
case T4_COMPRESSION_ITU_T4_1D:
case T4_COMPRESSION_ITU_T4_2D:
case T4_COMPRESSION_ITU_T6:
return t4_t6_decode_put(&s->decoder.t4_t6, buf, len);
case T4_COMPRESSION_ITU_T42:
return t42_decode_put(&s->decoder.t42, buf, len);
#if defined(SPANDSP_SUPPORT_T43)
case T4_COMPRESSION_ITU_T43:
return t43_decode_put(&s->decoder.t43, buf, len);
#endif
case T4_COMPRESSION_ITU_T85:
case T4_COMPRESSION_ITU_T85_L0:
return t85_decode_put(&s->decoder.t85, buf, len);
}
return T4_DECODE_OK;
}
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;
}
