don't minimise after sink_screen expose

We were minimising at the end of threadpool_run, but this was being
called for each sinkscreen render pass, so we were throwing away the
display cache.

Instead, minimise after sink, sink_memory and sink_disc.

ChangeLog

@@ -3,6 +3,8 @@ master
 - version bump to 8.14
 - remove autotools
 - jp2ksave defaults to chroma subsample off
+- don't minimise sink_screen input after expose ... improves caching during
+  interactive use
 
 24/7/22 started 8.13.1
 - fix im7 feature detection in meson

libvips/foreign/svgload.c

@@ -573,10 +573,11 @@ vips_foreign_load_svg_generate( VipsRegion *or,
 	int y;
 
 #ifdef DEBUG
-	printf( "vips_foreign_load_svg_generate:\n     "
-		"left = %d, top = %d, width = %d, height = %d\n", 
-		r->left, r->top, r->width, r->height ); 
 #endif /*DEBUG*/
+	printf( "vips_foreign_load_svg_generate: %p \n     "
+		"left = %d, top = %d, width = %d, height = %d\n", 
+		svg,
+		r->left, r->top, r->width, r->height ); 
 
 	/* rsvg won't always paint the background.
 	 */

libvips/iofuncs/sink.c

@@ -529,6 +529,8 @@ vips_sink_tile( VipsImage *im,
 
 	sink_free( &sink );
 
+	vips_image_minimise_all( im );
+
 	return( result );
 }
 

libvips/iofuncs/sinkdisc.c

@@ -535,5 +535,7 @@ vips_sink_disc( VipsImage *im, VipsRegionWrite write_fn, void *a )
 
 	write_free( &write );
 
+	vips_image_minimise_all( im );
+
 	return( result );
 }

libvips/iofuncs/sinkmemory.c

@@ -345,6 +345,8 @@ vips_sink_memory( VipsImage *image )
 
 	sink_memory_free( &memory );
 
+	vips_image_minimise_all( image );
+
 	VIPS_DEBUG_MSG( "vips_sink_memory: done\n" );
 
 	return( result );

libvips/iofuncs/threadpool.c

@@ -945,8 +945,6 @@ vips_threadpool_run( VipsImage *im,
 
 	vips_task_free( task );
 
-	vips_image_minimise_all( im );
-
 	return( result );
 }