compat wrapper for cross_phase

TODO

@@ -1,5 +1,3 @@
-- im_cross_phase.c needs a vips7 compat wrapper
-
 - add vips_band()/vips_bor()
 
 - now we've removed round-to-nearest from NN, we need something extra in the

libvips/deprecated/vips7compat.c

@@ -2873,3 +2873,19 @@ im_minpos_vec( VipsImage *im, int *xpos, int *ypos, double *minima, int n )
 	return( 0 );
 }
 
+int 
+im_cross_phase( IMAGE *in1, IMAGE *in2, IMAGE *out )
+{
+	VipsImage *x;
+
+	if( vips_call( "cross_phase", in1, in2, &x, NULL ) )
+		return( -1 );
+	if( im_copy( x, out ) ) {
+		g_object_unref( x );
+		return( -1 );
+	}
+	g_object_unref( x );
+
+	return( 0 );
+}
+

libvips/include/vips/arithmetic.h

@@ -377,8 +377,6 @@ int vips_stats( VipsImage *in, VipsImage **out, ... )
 int vips_measure( VipsImage *in, VipsImage **out, int h, int v, ... )
 	__attribute__((sentinel));
 
-int im_cross_phase( VipsImage *a, VipsImage *b, VipsImage *out );
-
 #ifdef __cplusplus
 }
 #endif /*__cplusplus*/

libvips/include/vips/vips7compat.h

@@ -671,6 +671,8 @@ int im_maxpos_avg( VipsImage *im, double *xpos, double *ypos, double *out );
 
 int im_linreg( VipsImage **ins, VipsImage *out, double *xs );
 
+int im_cross_phase( VipsImage *a, VipsImage *b, VipsImage *out );
+
 int im_point( VipsImage *im, VipsInterpolate *interpolate, 
 	double x, double y, int band, double *out );
 int im_point_bilinear( VipsImage *im,