via/engine/bes.c

126 			if ((si->overlay.ow.h_start + (si->overlay.ow.width / 2)) <
171 			/* width < 2 is not allowed */
182 	/* width < 2 is not allowed */
183 	if (si->overlay.ow.width < 2)
190 		if ((si->overlay.ow.h_start + si->overlay.ow.width - 1) > (crtc_hend - 1))
197 			if ((si->overlay.ow.h_start + si->overlay.ow.width - 1) < (crtc_hstart + 1))
199 				/* width < 2 is not allowed */
205 				temp2 = ((uint16)(si->overlay.ow.h_start + si->overlay.ow.width - crtc_hstart - 1)) & 0x7ff;
285 		if ((si->overlay.ow.h_start + si->overlay.ow.width - 1) < (crtc_hstart + 1))
287 			/* increase 'first contributing pixel' with 'fixed value': (total dest. width - 2) */
288 			moi->hsrcstv += (si->overlay.ow.width - 2);
317 	if ((si->overlay.ow.h_start + si->overlay.ow.width - 1) > (crtc_hend - 1))
323 			/* increase 'number of clipping pixels' with 'fixed value': (total dest. width - 2) */
324 			moi->hsrcendv += (si->overlay.ow.width - 2);
329 			moi->hsrcendv += ((si->overlay.ow.h_start + si->overlay.ow.width - 1) - (crtc_hend - 1));
337 		moi->hsrcendv = (((uint32)((si->overlay.my_ov.h_start + si->overlay.my_ov.width) - 1)) << 16) - moi->hsrcendv;
342 		moi->hsrcendv = (((uint32)((si->overlay.my_ov.h_start + si->overlay.my_ov.width) - 1)) << 16);
547 	 * 'ow->width' and 'ow->height' are the output window size: does not change
578 	if (my_ov.width == 0) my_ov.width++;
580 	if (my_ov.h_start > ((ob->width - si->overlay.myBufInfo[offset].slopspace) - 1))
581 		my_ov.h_start = ((ob->width - si->overlay.myBufInfo[offset].slopspace) - 1);
582 	if (((my_ov.h_start + my_ov.width) - 1) > ((ob->width - si->overlay.myBufInfo[offset].slopspace) - 1))
583 		my_ov.width = ((((ob->width - si->overlay.myBufInfo[offset].slopspace) - 1) - my_ov.h_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));
611 		if ((my_ov.width == ow->width) | (ow->width < 2))
613 			/* no horizontal scaling used, OR destination width < 2 */
624 		if ((ow->width < my_ov.width) & (ow->width >= 2))
626 			/* horizontal downscaling used AND destination width >= 2 */
638 	ifactor = (((uint32)(my_ov.width - intrep)) << 16) / (ow->width - intrep);
882 		BESW(V1_SOURCE_WH, ((ob->height << 16) | (ob->width)));
885 		BESW(VID1_STRIDE, (ob->width * 2));
952 		BESW(V3_SRC_WIDTH, (ob->width));
955 		BESW(VID3_STRIDE, (ob->width * 2));