Example #1
0
static void *
vips_reducev_start( VipsImage *out, void *a, void *b )
{
	VipsImage *in = (VipsImage *) a;
	VipsReducev *reducev = (VipsReducev *) b;
	int sz = VIPS_IMAGE_N_ELEMENTS( in );

	Sequence *seq;

	if( !(seq = VIPS_NEW( out, Sequence )) )
		return( NULL );

	/* Init!
	 */
	seq->reducev = reducev;
	seq->ir = NULL;
	seq->t1 = NULL;
	seq->t2 = NULL;

	/* Attach region and arrays.
	 */
	seq->ir = vips_region_new( in );
	seq->t1 = VIPS_ARRAY( NULL, sz, signed short );
	seq->t2 = VIPS_ARRAY( NULL, sz, signed short );
	if( !seq->ir || 
		!seq->t1 || 
		!seq->t2  ) {
		vips_reducev_stop( seq, NULL, NULL );
		return( NULL );
	}

	return( seq );
}
Example #2
0
File: csv.c Project: songfj/libvips
static int
vips2csv( VipsImage *in, FILE *fp, const char *sep )
{
    int w = VIPS_IMAGE_N_ELEMENTS( in );
    int es = VIPS_IMAGE_SIZEOF_ELEMENT( in );

    int x, y;
    VipsPel *p;

    p = in->data;
    for( y = 0; y < in->Ysize; y++ ) {
        for( x = 0; x < w; x++ ) {
            if( x > 0 )
                fprintf( fp, "%s", sep );

            switch( in->BandFmt ) {
            case VIPS_FORMAT_UCHAR:
                PRINT_INT( unsigned char );
                break;
            case VIPS_FORMAT_CHAR:
                PRINT_INT( char );
                break;
            case VIPS_FORMAT_USHORT:
                PRINT_INT( unsigned short );
                break;
            case VIPS_FORMAT_SHORT:
                PRINT_INT( short );
                break;
            case VIPS_FORMAT_UINT:
                PRINT_INT( unsigned int );
                break;
            case VIPS_FORMAT_INT:
                PRINT_INT( int );
                break;
            case VIPS_FORMAT_FLOAT:
                PRINT_FLOAT( float );
                break;
            case VIPS_FORMAT_DOUBLE:
                PRINT_FLOAT( double );
                break;
            case VIPS_FORMAT_COMPLEX:
                PRINT_COMPLEX( float );
                break;
            case VIPS_FORMAT_DPCOMPLEX:
                PRINT_COMPLEX( double );
                break;

            default:
                g_assert( 0 );
            }

            p += es;
        }

        fprintf( fp, "\n" );
    }

    return( 0 );
}