via/engine/bes.c

225 			/* height < 2 is not allowed */
236 	/* height < 2 is not allowed */
237 	if (si->overlay.ow.height < 2)
244 		if ((si->overlay.ow.v_start + si->overlay.ow.height - 1) > (crtc_vend - 1))
251 			if ((si->overlay.ow.v_start + si->overlay.ow.height - 1) < (crtc_vstart + 1))
253 				/* height < 2 is not allowed */
259 				temp2 = ((uint16)(si->overlay.ow.v_start + si->overlay.ow.height - crtc_vstart - 1)) & 0x7ff;
372 		if ((si->overlay.ow.v_start + si->overlay.ow.height - 1) < (crtc_vstart + 1))
375 			 * 'total height - 2' of dest. picture in pixels * inverse scaling factor */
376 			moi->v1srcstv = (si->overlay.ow.height - 2) * si->overlay.v_ifactor;
547 	 * 'ow->width' and 'ow->height' are the output window size: does not change
579 	if (my_ov.height == 0) my_ov.height++;
584 	if (my_ov.v_start > (ob->height - 1))
585 		my_ov.v_start = (ob->height - 1);
586 	if (((my_ov.v_start + my_ov.height) - 1) > (ob->height - 1))
587 		my_ov.height = (((ob->height - 1) - my_ov.v_start) + 1);
589 	LOG(4,("Overlay: inputbuffer view (zoom) left %d, top %d, width %d, height %d\n",
590 		my_ov.h_start, my_ov.v_start, my_ov.width, my_ov.height));
601 	LOG(4,("Overlay: total input picture width = %d, height = %d\n",
602 			(ob->width - si->overlay.myBufInfo[offset].slopspace), ob->height));
603 	LOG(4,("Overlay: output picture width = %d, height = %d\n", ow->width, ow->height));
714 		if ((my_ov.height == ow->height) | (ow->height < 2))
716 			/* no vertical scaling used, OR destination height < 2 */
727 		if ((ow->height < my_ov.height) & (ow->height >= 2))
729 			/* vertical downscaling used AND destination height >= 2 */
741 	ifactor = (((uint32)(my_ov.height - intrep)) << 16) / (ow->height - intrep);
882 		BESW(V1_SOURCE_WH, ((ob->height << 16) | (ob->width)));
951 		/* setup buffersize (V3 does not need ob->height(?)) */