WhyCan Forum(哇酷开发者社区)

__s32 DE_BE_Layer_Set_Screen_Win(__u32 sel, __u8 layidx, disp_window *win)
{
	__u32 tmp;

	if (win->width == 0 || win->height == 0) {
	    printk("ERROR,%s:%d w,h=[%d,%d]\n", __FUNCTION__, __LINE__, win->width, win->height);
	} else {
        tmp = ((((__u32) (win->y)) >> 31) << 31) |
    	    ((((__u32) (win->y)) & 0x7fff) << 16) |
    	    ((((__u32) (win->x)) >> 31) << 15) | (((__u32) (win->x)) & 0x7fff);
    	DE_BE_WUINT32IDX(sel, DE_BE_LAYER_CRD_CTL_OFF, layidx, tmp);
    	DE_BE_WUINT32IDX(sel, DE_BE_LAYER_SIZE_OFF,
    			 layidx, (win->height - 1) << 16 | (win->width - 1));
	}

	return 0;
}