int
vips__openslide_read_associated( const char *filename, VipsImage *out,
const char *associated )
{
ReadSlide *rslide;
VipsImage *raw;
const char *error;
VIPS_DEBUG_MSG( "vips__openslide_read_associated: %s %s\n",
filename, associated );
/* Memory buffer. Get associated directly to this, then copy to out.
*/
raw = vips_image_new_buffer();
vips_object_local( out, raw );
if( !(rslide = readslide_new( filename, raw, 0, associated )) ||
vips_image_write_prepare( raw ) )
return( -1 );
openslide_read_associated_image( rslide->osr, rslide->associated,
(uint32_t *) VIPS_IMAGE_ADDR( raw, 0, 0 ) );
error = openslide_get_error( rslide->osr );
if( error ) {
vips_error( "openslide2vips",
_( "reading associated image: %s" ), error );
return( -1 );
}
if( vips_image_write( raw, out ) )
return( -1 );
return( 0 );
}
int
vips__openslide_read_header( const char *filename, VipsImage *out,
int level, gboolean autocrop, char *associated )
{
if( !readslide_new( filename, out, level, autocrop, associated ) )
return( -1 );
return( 0 );
}
int
vips__openslide_read_header( const char *filename, VipsImage *out,
int layer, char *associated )
{
ReadSlide *rslide;
if( !(rslide = readslide_new( filename, out, layer, associated )) )
return( -1 );
return( 0 );
}
int
vips__openslide_read( const char *filename, VipsImage *out, int layer )
{
ReadSlide *rslide;
VipsImage *raw;
VipsImage *t;
VIPS_DEBUG_MSG( "vips__openslide_read: %s %d\n",
filename, layer );
/* Tile cache: keep enough for two complete rows of tiles. OpenSlide
* has its own tile cache, but it's not large enough for a complete
* scan line.
*/
raw = vips_image_new();
vips_object_local( out, raw );
if( !(rslide = readslide_new( filename, raw, layer, NULL )) )
return( -1 );
if( vips_image_generate( raw,
NULL, vips__openslide_generate, NULL, rslide, NULL ) )
return( -1 );
/* Copy to out, adding a cache. Enough tiles for a complete row, plus
* 50%.
*/
if( vips_tilecache( raw, &t,
"tile_width", TILE_WIDTH,
"tile_height", TILE_WIDTH,
"max_tiles", (int) (1.5 * (1 + raw->Xsize / TILE_WIDTH)),
NULL ) )
return( -1 );
if( vips_image_write( t, out ) ) {
g_object_unref( t );
return( -1 );
}
g_object_unref( t );
return( 0 );
}
