93 vips_zoom_paint_whole( VipsRegion *or, VipsRegion *ir, VipsZoom *zoom,  in vips_zoom_paint_whole()  argument
102 	const int ileft = left / zoom->xfac;  in vips_zoom_paint_whole()
103 	const int iright = right / zoom->xfac;  in vips_zoom_paint_whole()
104 	const int itop = top / zoom->yfac;  in vips_zoom_paint_whole()
105 	const int ibottom = bottom / zoom->yfac;  in vips_zoom_paint_whole()
112 		right % zoom->xfac == 0 &&  in vips_zoom_paint_whole()
113 		left % zoom->xfac == 0 &&  in vips_zoom_paint_whole()
114 		top % zoom->yfac == 0 &&  in vips_zoom_paint_whole()
115 		bottom % zoom->yfac == 0 );  in vips_zoom_paint_whole()
121 		VipsPel *q = VIPS_REGION_ADDR( or, left, y * zoom->yfac );  in vips_zoom_paint_whole()
130 			for( z = 0; z < zoom->xfac; z++ ) {  in vips_zoom_paint_whole()
143 		for( z = 1; z < zoom->yfac; z++ ) {  in vips_zoom_paint_whole()
153 vips_zoom_paint_part( VipsRegion *or, VipsRegion *ir, VipsZoom *zoom,  in vips_zoom_paint_part()  argument
162 	const int ix = left / zoom->xfac;  in vips_zoom_paint_part()
163 	const int iy = top / zoom->yfac;  in vips_zoom_paint_part()
168 	const int ptbound = (iy + 1) * zoom->yfac - top;  in vips_zoom_paint_part()
182 		VipsPel *p = VIPS_REGION_ADDR( ir, ix, y / zoom->yfac );  in vips_zoom_paint_part()
188 		int xt = (ix + 1) * zoom->xfac - left;  in vips_zoom_paint_part()
204 				xt = zoom->xfac;  in vips_zoom_paint_part()
224 		yt = zoom->yfac;  in vips_zoom_paint_part()
234 	VipsZoom *zoom = (VipsZoom *) b;  in vips_zoom_gen()  local
254 	left = VIPS_ROUND_DOWN( r->left, zoom->xfac );  in vips_zoom_gen()
255 	right = VIPS_ROUND_UP( ri, zoom->xfac );  in vips_zoom_gen()
256 	top = VIPS_ROUND_DOWN( r->top, zoom->yfac );  in vips_zoom_gen()
257 	bottom = VIPS_ROUND_UP( bo, zoom->yfac );  in vips_zoom_gen()
260 	s.left = left / zoom->xfac;  in vips_zoom_gen()
261 	s.top = top / zoom->yfac;  in vips_zoom_gen()
262 	s.width = width / zoom->xfac;  in vips_zoom_gen()
263 	s.height = height / zoom->yfac;  in vips_zoom_gen()
269 	left = VIPS_ROUND_UP( r->left, zoom->xfac );  in vips_zoom_gen()
270 	right = VIPS_ROUND_DOWN( ri, zoom->xfac );  in vips_zoom_gen()
271 	top = VIPS_ROUND_UP( r->top, zoom->yfac );  in vips_zoom_gen()
272 	bottom = VIPS_ROUND_DOWN( bo, zoom->yfac );  in vips_zoom_gen()
280 		vips_zoom_paint_whole( or, ir, zoom, left, right, top, bottom );  in vips_zoom_gen()
288 		vips_zoom_paint_part( or, ir, zoom,   in vips_zoom_gen()
293 		vips_zoom_paint_part( or, ir, zoom,   in vips_zoom_gen()
298 		vips_zoom_paint_part( or, ir, zoom,   in vips_zoom_gen()
303 		vips_zoom_paint_part( or, ir, zoom,   in vips_zoom_gen()
314 	VipsZoom *zoom = (VipsZoom *) object;  in vips_zoom_build()  local
319 	g_assert( zoom->xfac > 0 );   in vips_zoom_build()
320 	g_assert( zoom->yfac > 0 );   in vips_zoom_build()
324 	if( (double) zoom->in->Xsize * zoom->xfac > (double) INT_MAX / 2 ||   in vips_zoom_build()
325 		(double) zoom->in->Ysize * zoom->yfac > (double) INT_MAX / 2 ) {  in vips_zoom_build()
330 	if( zoom->xfac == 1 &&   in vips_zoom_build()
331 		zoom->yfac == 1 )   in vips_zoom_build()
332 		return( vips_image_write( zoom->in, conversion->out ) );  in vips_zoom_build()
334 	if( vips_image_pio_input( zoom->in ) ||   in vips_zoom_build()
335 		vips_check_coding_known( class->nickname, zoom->in ) )    in vips_zoom_build()
342 		VIPS_DEMAND_STYLE_FATSTRIP, zoom->in, NULL ) )  in vips_zoom_build()
344 	conversion->out->Xsize = zoom->in->Xsize * zoom->xfac;  in vips_zoom_build()
345 	conversion->out->Ysize = zoom->in->Ysize * zoom->yfac;  in vips_zoom_build()
349 		zoom->in, zoom ) )  in vips_zoom_build()
394 vips_zoom_init( VipsZoom *zoom )  in vips_zoom_init()  argument