C++ (Cpp) vips__sizealike_vec Examples

Example #1

File: bandary.c Project: ChiaraCaiazza/collageMaker

static int
vips_bandary_build( VipsObject *object )
{
	VipsObjectClass *object_class = VIPS_OBJECT_GET_CLASS( object );
	VipsBandaryClass *class = VIPS_BANDARY_GET_CLASS( object ); 
	VipsConversion *conversion = VIPS_CONVERSION( object );
	VipsBandary *bandary = VIPS_BANDARY( object );

	int i;
	VipsImage **decode;
	VipsImage **format;
	VipsImage **size;

	if( VIPS_OBJECT_CLASS( vips_bandary_parent_class )->build( object ) )
		return( -1 );

	if( bandary->n <= 0 ) {
		vips_error( object_class->nickname, 
			"%s", _( "no input images" ) );
		return( -1 );
	}
	if( bandary->n > MAX_INPUT_IMAGES ) {
		vips_error( object_class->nickname, 
			"%s", _( "too many input images" ) );
		return( -1 );
	}

	decode = (VipsImage **) vips_object_local_array( object, bandary->n );
	format = (VipsImage **) vips_object_local_array( object, bandary->n );
	size = (VipsImage **) vips_object_local_array( object, bandary->n );

	for( i = 0; i < bandary->n; i++ )
		if( vips_image_decode( bandary->in[i], &decode[i] ) )
			return( -1 );
	if( vips__formatalike_vec( decode, format, bandary->n ) ||
		vips__sizealike_vec( format, size, bandary->n ) )
		return( -1 );
	bandary->ready = size;

	if( vips_image_pipeline_array( conversion->out, 
		VIPS_DEMAND_STYLE_THINSTRIP, bandary->ready ) )
		return( -1 );

	conversion->out->Bands = bandary->out_bands;
	if( class->format_table )
		conversion->out->BandFmt = 
			class->format_table[bandary->ready[0]->BandFmt];

	if( vips_image_generate( conversion->out,
		vips_start_many, vips_bandary_gen, vips_stop_many, 
		bandary->ready, bandary ) )
		return( -1 );

	return( 0 );
}

Example #2

File: ifthenelse.c Project: nrobidoux/libvips

static int
vips_ifthenelse_build( VipsObject *object )
{
	VipsConversion *conversion = VIPS_CONVERSION( object );
	VipsIfthenelse *ifthenelse = (VipsIfthenelse *) object;

	VipsImage *all[3];
	VipsImage **band = (VipsImage **) vips_object_local_array( object, 3 );
	VipsImage **size = (VipsImage **) vips_object_local_array( object, 3 );
	VipsImage **format = 
		(VipsImage **) vips_object_local_array( object, 3 );

	if( VIPS_OBJECT_CLASS( vips_ifthenelse_parent_class )->build( object ) )
		return( -1 );

	/* We have to have the condition image last since we want the output
	 * image to inherit its properties from the then/else parts.
	 */
	all[0] = ifthenelse->in1;
	all[1] = ifthenelse->in2;
	all[2] = ifthenelse->cond;

	/* No need to check input images, sizealike and friends will do this
	 * for us.
	 */

	/* Cast our input images up to a common bands and size.
	 */
	if( vips__bandalike_vec( "VipsIfthenelse", all, band, 3, 0 ) ||
		vips__sizealike_vec( band, size, 3 ) )
		return( -1 );

	/* Condition is cast to uchar, then/else to a common type.
	 */
	if( vips_cast( size[2], &format[2], VIPS_FORMAT_UCHAR, NULL ) )
		return( -1 );
	if( vips__formatalike_vec( size, format, 2 ) ) 
		return( -1 ); 

	if( vips_image_copy_fields_array( conversion->out, format ) )
		return( -1 );
        vips_demand_hint_array( conversion->out, 
		VIPS_DEMAND_STYLE_SMALLTILE, format );

	if( vips_image_generate( conversion->out,
		vips_start_many, vips_ifthenelse_gen, vips_stop_many, 
		format, ifthenelse ) )
		return( -1 );

	return( 0 );
}

Example #3

File: bandary.c Project: nrobidoux/libvips

static int
vips_bandary_build( VipsObject *object )
{
	VipsConversion *conversion = VIPS_CONVERSION( object );
	VipsBandary *bandary = (VipsBandary *) object;

	int i;
	VipsImage **format;
	VipsImage **size;

	if( VIPS_OBJECT_CLASS( vips_bandary_parent_class )->build( object ) )
		return( -1 );

	if( bandary->n <= 0 ) {
		vips_error( "VipsBandary", "%s", _( "no input images" ) );
		return( -1 );
	}
	if( bandary->n > MAX_INPUT_IMAGES ) {
		vips_error( "VipsBandary", "%s", _( "too many input images" ) );
		return( -1 );
	}
	if( vips_image_pio_output( conversion->out ) )
		return( -1 );
	for( i = 0; i < bandary->n; i++ )
		if( vips_image_pio_input( bandary->in[i] ) || 
			vips_check_uncoded( "VipsBandary", bandary->in[i] ) )
			return( -1 );

	format = (VipsImage **) vips_object_local_array( object, bandary->n );
	size = (VipsImage **) vips_object_local_array( object, bandary->n );
	if( vips__formatalike_vec( bandary->in, format, bandary->n ) ||
		vips__sizealike_vec( format, size, bandary->n ) )
		return( -1 );
	bandary->ready = size;

	if( vips_image_copy_fields_array( conversion->out, bandary->ready ) )
		return( -1 );
        vips_demand_hint_array( conversion->out, 
		VIPS_DEMAND_STYLE_THINSTRIP, bandary->ready );

	conversion->out->Bands = bandary->out_bands;

	if( vips_image_generate( conversion->out,
		vips_start_many, vips_bandary_gen, vips_stop_many, 
		bandary->ready, bandary ) )
		return( -1 );

	return( 0 );
}

Example #4

File: arithmetic.c Project: imclab/libvips

int
vips__sizealike( VipsImage *in1, VipsImage *in2,
                 VipsImage **out1, VipsImage **out2 )
{
    VipsImage *in[2];
    VipsImage *out[2];

    in[0] = in1;
    in[1] = in2;

    if( vips__sizealike_vec( in, out, 2 ) )
        return( -1 );

    *out1 = out[0];
    *out2 = out[1];

    return( 0 );
}