static int
vips_colour_gen( VipsRegion *or,
void *seq, void *a, void *b, gboolean *stop )
{
VipsRegion **ir = (VipsRegion **) seq;
VipsColour *colour = VIPS_COLOUR( b );
VipsColourClass *class = VIPS_COLOUR_GET_CLASS( colour );
VipsRect *r = &or->valid;
int i, y;
VipsPel *p[MAX_INPUT_IMAGES], *q;
for( i = 0; ir[i]; i++ )
if( vips_region_prepare( ir[i], r ) )
return( -1 );
VIPS_GATE_START( "vips_colour_gen: work" );
for( y = 0; y < r->height; y++ ) {
for( i = 0; ir[i]; i++ )
p[i] = VIPS_REGION_ADDR( ir[i], r->left, r->top + y );
p[i] = NULL;
q = VIPS_REGION_ADDR( or, r->left, r->top + y );
class->process_line( colour, q, p, r->width );
}
VIPS_GATE_STOP( "vips_colour_gen: work" );
return( 0 );
}
static int
vips_XYZ2scRGB_build( VipsObject *object )
{
if( VIPS_OBJECT_CLASS( vips_XYZ2scRGB_parent_class )->build( object ) )
return( -1 );
/* We've converted to sRGB without a profile. We must remove any ICC
* profile left over from import or there will be a mismatch between
* pixel values and the attached profile.
*/
vips_image_remove( VIPS_COLOUR( object )->out, VIPS_META_ICC_NAME );
return( 0 );
}
size_t data_length;
if( !(data = vips__file_read_name( filename, VIPS_ICC_DIR,
&data_length )) )
return( -1 );
vips_image_set_blob( im, VIPS_META_ICC_NAME,
(VipsCallbackFn) g_free, data, data_length );
return( 0 );
}
static int
vips_colour_build( VipsObject *object )
{
VipsObjectClass *class = VIPS_OBJECT_GET_CLASS( object );
VipsColour *colour = VIPS_COLOUR( object );
VipsImage **in;
VipsImage **extra_bands;
VipsImage *out;
int i;
#ifdef DEBUG
printf( "vips_colour_build: " );
vips_object_print_name( object );
printf( "\n" );
#endif /*DEBUG*/
if( VIPS_OBJECT_CLASS( vips_colour_parent_class )->
build( object ) )
VipsscRGB2sRGB *scRGB2sRGB = (VipsscRGB2sRGB *) colour;
if( scRGB2sRGB->depth == 16 )
vips_scRGB2sRGB_line_16( (unsigned short *) out,
(float *) in[0], width );
else
vips_scRGB2sRGB_line_8( (VipsPel *) out,
(float *) in[0], width );
}
static int
vips_scRGB2sRGB_build( VipsObject *object )
{
VipsObjectClass *class = VIPS_OBJECT_GET_CLASS( object );
VipsscRGB2sRGB *scRGB2sRGB = (VipsscRGB2sRGB *) object;
VipsColour *colour = VIPS_COLOUR( scRGB2sRGB );
switch( scRGB2sRGB->depth ) {
case 16:
colour->interpretation = VIPS_INTERPRETATION_RGB16;
colour->format = VIPS_FORMAT_USHORT;
break;
case 8:
colour->interpretation = VIPS_INTERPRETATION_sRGB;
colour->format = VIPS_FORMAT_UCHAR;
break;
default:
vips_error( class->nickname,
"%s", _( "depth must be 8 or 16" ) );
