static void
tiff_read(unsigned char *dst, unsigned int line, void *data)
{
struct tiff_state *h = data;
int s,on,off;
if (h->image) {
/* loaded whole image using TIFFReadRGBAImage() */
uint32 *row = h->image + h->width * (h->height - line -1);
load_rgba(dst,(unsigned char*)row,h->width);
return;
}
if (h->config == PLANARCONFIG_CONTIG) {
TIFFReadScanline(h->tif, h->row, line, 0);
} else if (h->config == PLANARCONFIG_SEPARATE) {
for (s = 0; s < h->nsamples; s++)
TIFFReadScanline(h->tif, h->row, line, s);
}
switch (h->nsamples) {
case 1:
if (1 == h->depth) {
/* black/white */
on = 0, off = 0;
if (PHOTOMETRIC_MINISWHITE == h->photometric)
on = 0, off = 255;
if (PHOTOMETRIC_MINISBLACK == h->photometric)
on = 255, off = 0;
#if 0
/* Huh? Does TIFFReadScanline handle this already ??? */
if (FILLORDER_MSB2LSB == h->fillorder)
load_bits_msb(dst,(unsigned char*)(h->row),h->width,on,off);
else
load_bits_lsb(dst,(unsigned char*)(h->row),h->width,on,off);
#else
load_bits_msb(dst,(unsigned char*)(h->row),h->width,on,off);
#endif
} else {
/* grayscaled */
load_gray(dst,(unsigned char*)(h->row),h->width);
}
break;
case 3:
/* rgb */
memcpy(dst,h->row,3*h->width);
break;
case 4:
/* rgb+alpha */
load_rgba(dst,(unsigned char*)(h->row),h->width);
break;
}
}
ImageLoad( long version, GlobalFunc *global, LWImageLoaderLocal *local,
void *serverData )
{
PicInfo *pic = NULL;
int result;
if ( version != LWIMAGELOADER_VERSION ) return AFUNC_BADVERSION;
pic = ReadILBM( local->filename, &result );
if ( !pic ) {
switch ( result ) {
case EPNOFILE:
local->result = IPSTAT_BADFILE;
break;
case EPNOMEM:
local->result = IPSTAT_FAILED;
break;
default:
local->result = IPSTAT_NOREC;
break;
}
return AFUNC_OK;
}
if (( pic->bmhd.nPlanes == 24 ) || ( pic->camg & CAMG_HAM ))
load_24( local, pic );
else if ( pic->isgray )
load_gray( local, pic );
else
load_indexed( local, pic );
FreeILBM( pic );
return AFUNC_OK;
}
