void nxmu_requestbkgd(FAR struct nxfe_conn_s *conn,
FAR struct nxbe_state_s *be,
FAR const struct nx_callback_s *cb,
FAR void *arg)
{
#ifdef CONFIG_DEBUG
if (!conn || !be || !cb)
{
errno = EINVAL;
}
#endif
/* Set the client's callback vtable and and replace the server
* connection with the clients connection.
*/
be->bkgd.cb = cb;
be->bkgd.arg = arg;
be->bkgd.conn = conn;
/* Report the size/position of the background window to the client */
nxfe_reportposition((NXWINDOW)&be->bkgd);
/* Redraw the background window */
nxfe_redrawreq(&be->bkgd, &be->bkgd.bounds);
/* Provide the mouse settings */
#ifdef CONFIG_NX_XYINPUT
nxmu_mousereport(&be->bkgd);
#endif
}
int nx_constructwindow(NXHANDLE handle, NXWINDOW hwnd,
FAR const struct nx_callback_s *cb, FAR void *arg)
{
FAR struct nxfe_state_s *fe = (FAR struct nxfe_state_s *)handle;
FAR struct nxbe_window_s *wnd = (FAR struct nxbe_window_s *)hwnd;
FAR struct nxbe_state_s *be = &fe->be;
#ifdef CONFIG_DEBUG
if (!wnd)
{
set_errno(EINVAL);
return ERROR;
}
if (!fe || !cb)
{
kufree(wnd);
errno = EINVAL;
return ERROR;
}
#endif
/* Initialize the window structure */
wnd->be = be;
wnd->cb = cb;
wnd->arg = arg;
/* Insert the new window at the top on the display. topwnd is
* never NULL (it may point only at the background window, however)
*/
wnd->above = NULL;
wnd->below = be->topwnd;
be->topwnd->above = wnd;
be->topwnd = wnd;
/* Report the initialize size/position of the window */
nxfe_reportposition((NXWINDOW)wnd);
/* Provide the initial mouse settings */
#ifdef CONFIG_NX_XYINPUT
nxsu_mousereport(wnd);
#endif
return OK;
}
int nx_getposition(NXWINDOW hwnd)
{
#ifdef CONFIG_DEBUG
if (!hwnd)
{
errno = EINVAL;
return ERROR;
}
#endif
/* This is very awkward since the requested values are available
* immediately in the window structure. However, this round about way of
* doing things makes the single user interface bug-for-bug compatible with
* the multi-user interface.
*/
nxfe_reportposition((FAR struct nxbe_window_s *)hwnd);
return OK;
}
int nx_requestbkgd(NXHANDLE handle, FAR const struct nx_callback_s *cb,
FAR void *arg)
{
FAR struct nxfe_state_s *fe = (FAR struct nxfe_state_s *)handle;
FAR struct nxbe_state_s *be = &fe->be;
#ifdef CONFIG_DEBUG
if (!fe || !cb)
{
errno = EINVAL;
return ERROR;
}
#endif
/* Replace the NX background windo callbacks with the client's callbacks */
be->bkgd.cb = cb;
be->bkgd.arg = arg;
/* Report the size/position of the background window to the client */
nxfe_reportposition((NXWINDOW)&be->bkgd);
/* Redraw the background window */
nxfe_redrawreq(&be->bkgd, &be->bkgd.bounds);
/* Provide the mouse settings to the client */
#ifdef CONFIG_NX_XYINPUT
nxsu_mousereport(&be->bkgd);
#endif
/* In this single-user mode, we could return the background window
* handle here. However, we cannot do that in the multi-user case
* because that handle is known only to the server. Instead, the
* background window handle is returned to the client via a redraw
* callback. So we will do the same in the single-user case for
* compatibility.
*/
return OK;
}
void nxbe_setsize(FAR struct nxbe_window_s *wnd,
FAR const struct nxgl_size_s *size)
{
struct nxgl_rect_s bounds;
#ifdef CONFIG_DEBUG
if (!wnd)
{
return;
}
#endif
/* Save the before size of the window's bounding box */
nxgl_rectcopy(&bounds, &wnd->bounds);
/* Add the window origin to the supplied size get the new window bounding box */
wnd->bounds.pt2.x = wnd->bounds.pt1.x + size->w - 1;
wnd->bounds.pt2.y = wnd->bounds.pt1.y + size->h - 1;
/* Clip the new bounding box so that lies within the background screen */
nxgl_rectintersect(&wnd->bounds, &wnd->bounds, &wnd->be->bkgd.bounds);
/* We need to update the larger of the two rectangles. That will be the
* union of the before and after sizes.
*/
nxgl_rectunion(&bounds, &bounds, &wnd->bounds);
/* Report the new size/position */
nxfe_reportposition(wnd);
/* Then redraw this window AND all windows below it. Having resized the
* window, we may have exposed previoulsy obscured portions of windows
* below this one.
*/
nxbe_redrawbelow(wnd->be, wnd, &bounds);
}
void nxbe_setposition(FAR struct nxbe_window_s *wnd,
FAR const struct nxgl_point_s *pos)
{
struct nxgl_rect_s before;
struct nxgl_rect_s rect;
#ifdef CONFIG_DEBUG
if (!wnd)
{
return;
}
#endif
/* Back out the old window origin position from the bounding box */
nxgl_rectoffset(&rect, &wnd->bounds, -wnd->bounds.pt1.x, -wnd->bounds.pt1.y);
/* Add the new window origin into the bounding box */
nxgl_rectcopy(&before, &wnd->bounds);
nxgl_rectoffset(&wnd->bounds, &rect, pos->x, pos->y);
/* Get the union of the 'before' bounding box and the 'after' bounding
* this union is the region of the display that must be updated.
*/
nxgl_rectunion(&rect, &before, &wnd->bounds);
nxgl_rectintersect(&rect, &rect, &wnd->be->bkgd.bounds);
/* Report the new size/position */
nxfe_reportposition(wnd);
/* Then redraw this window AND all windows below it. Having moved the
* window, we may have exposed previoulsy obscured portions of windows
* below this one.
*/
nxbe_redrawbelow(wnd->be, wnd, &rect);
}
int nx_runinstance(FAR const char *mqname, FAR NX_DRIVERTYPE *dev)
{
struct nxfe_state_s fe;
FAR struct nxsvrmsg_s *msg;
uint8_t buffer[NX_MXSVRMSGLEN];
int nbytes;
int ret;
/* Initialization *********************************************************/
/* Sanity checking */
#ifdef CONFIG_DEBUG
if (!mqname || !dev)
{
errno = EINVAL;
return ERROR;
}
#endif
/* Initialize and configure the server */
ret = nxmu_setup(mqname, dev, &fe);
if (ret < 0)
{
return ret; /* nxmu_setup sets errno */
}
/* Produce the initial, background display */
nxbe_redraw(&fe.be, &fe.be.bkgd, &fe.be.bkgd.bounds);
/* Message Loop ***********************************************************/
/* Then loop forever processing incoming messages */
for (;;)
{
/* Receive the next server message */
nbytes = mq_receive(fe.conn.crdmq, buffer, NX_MXSVRMSGLEN, 0);
if (nbytes < 0)
{
if (errno != EINTR)
{
gdbg("mq_receive failed: %d\n", errno);
goto errout; /* mq_receive sets errno */
}
continue;
}
/* Dispatch the message appropriately */
DEBUGASSERT(nbytes >= sizeof(struct nxsvrmsg_s));
msg = (FAR struct nxsvrmsg_s *)buffer;
gvdbg("Received opcode=%d nbytes=%d\n", msg->msgid, nbytes);
switch (msg->msgid)
{
/* Messages sent from clients to the NX server *********************/
case NX_SVRMSG_CONNECT: /* Establish connection with new NX server client */
{
FAR struct nxsvrmsg_s *connmsg = (FAR struct nxsvrmsg_s *)buffer;
nxmu_connect(connmsg->conn);
}
break;
case NX_SVRMSG_DISCONNECT: /* Tear down connection with terminating client */
{
FAR struct nxsvrmsg_s *disconnmsg = (FAR struct nxsvrmsg_s *)buffer;
nxmu_disconnect(disconnmsg->conn);
}
break;
case NX_SVRMSG_OPENWINDOW: /* Create a new window */
{
FAR struct nxsvrmsg_openwindow_s *openmsg = (FAR struct nxsvrmsg_openwindow_s *)buffer;
nxmu_openwindow(&fe.be, openmsg->wnd);
}
break;
case NX_SVRMSG_CLOSEWINDOW: /* Close an existing window */
{
FAR struct nxsvrmsg_closewindow_s *closemsg = (FAR struct nxsvrmsg_closewindow_s *)buffer;
nxbe_closewindow(closemsg->wnd);
}
break;
case NX_SVRMSG_BLOCKED: /* Block messsages to a window */
{
FAR struct nxsvrmsg_blocked_s *blocked = (FAR struct nxsvrmsg_blocked_s *)buffer;
nxmu_blocked(blocked->wnd, blocked->arg);
}
break;
case NX_SVRMSG_REQUESTBKGD: /* Give access to the background window */
{
FAR struct nxsvrmsg_requestbkgd_s *rqbgmsg = (FAR struct nxsvrmsg_requestbkgd_s *)buffer;
nxmu_requestbkgd(rqbgmsg->conn, &fe.be, rqbgmsg->cb, rqbgmsg->arg);
}
break;
case NX_SVRMSG_RELEASEBKGD: /* End access to the background window */
{
nxmu_releasebkgd(&fe);
}
break;
case NX_SVRMSG_SETPOSITION: /* Change window position */
{
FAR struct nxsvrmsg_setposition_s *setposmsg = (FAR struct nxsvrmsg_setposition_s *)buffer;
nxbe_setposition(setposmsg->wnd, &setposmsg->pos);
}
break;
case NX_SVRMSG_SETSIZE: /* Change window size */
{
FAR struct nxsvrmsg_setsize_s *setsizemsg = (FAR struct nxsvrmsg_setsize_s *)buffer;
nxbe_setsize(setsizemsg->wnd, &setsizemsg->size);
}
break;
case NX_SVRMSG_GETPOSITION: /* Get the window size/position */
{
FAR struct nxsvrmsg_getposition_s *getposmsg = (FAR struct nxsvrmsg_getposition_s *)buffer;
nxfe_reportposition(getposmsg->wnd);
}
break;
case NX_SVRMSG_RAISE: /* Move the window to the top of the display */
{
FAR struct nxsvrmsg_raise_s *raisemsg = (FAR struct nxsvrmsg_raise_s *)buffer;
nxbe_raise(raisemsg->wnd);
}
break;
case NX_SVRMSG_LOWER: /* Lower the window to the bottom of the display */
{
FAR struct nxsvrmsg_lower_s *lowermsg = (FAR struct nxsvrmsg_lower_s *)buffer;
nxbe_lower(lowermsg->wnd);
}
break;
case NX_SVRMSG_SETPIXEL: /* Set a single pixel in the window with a color */
{
FAR struct nxsvrmsg_setpixel_s *setmsg = (FAR struct nxsvrmsg_setpixel_s *)buffer;
nxbe_setpixel(setmsg->wnd, &setmsg->pos, setmsg->color);
}
break;
case NX_SVRMSG_FILL: /* Fill a rectangular region in the window with a color */
{
FAR struct nxsvrmsg_fill_s *fillmsg = (FAR struct nxsvrmsg_fill_s *)buffer;
nxbe_fill(fillmsg->wnd, &fillmsg->rect, fillmsg->color);
}
break;
case NX_SVRMSG_GETRECTANGLE: /* Get a rectangular region from the window */
{
FAR struct nxsvrmsg_getrectangle_s *getmsg = (FAR struct nxsvrmsg_getrectangle_s *)buffer;
nxbe_getrectangle(getmsg->wnd, &getmsg->rect, getmsg->plane, getmsg->dest, getmsg->deststride);
if (getmsg->sem_done)
{
sem_post(getmsg->sem_done);
}
}
break;
case NX_SVRMSG_FILLTRAP: /* Fill a trapezoidal region in the window with a color */
{
FAR struct nxsvrmsg_filltrapezoid_s *trapmsg = (FAR struct nxsvrmsg_filltrapezoid_s *)buffer;
nxbe_filltrapezoid(trapmsg->wnd, &trapmsg->clip, &trapmsg->trap, trapmsg->color);
}
break;
case NX_SVRMSG_MOVE: /* Move a rectangular region within the window */
{
FAR struct nxsvrmsg_move_s *movemsg = (FAR struct nxsvrmsg_move_s *)buffer;
nxbe_move(movemsg->wnd, &movemsg->rect, &movemsg->offset);
}
break;
case NX_SVRMSG_BITMAP: /* Copy a rectangular bitmap into the window */
{
FAR struct nxsvrmsg_bitmap_s *bmpmsg = (FAR struct nxsvrmsg_bitmap_s *)buffer;
nxbe_bitmap(bmpmsg->wnd, &bmpmsg->dest, bmpmsg->src, &bmpmsg->origin, bmpmsg->stride);
if (bmpmsg->sem_done)
{
sem_post(bmpmsg->sem_done);
}
}
break;
case NX_SVRMSG_SETBGCOLOR: /* Set the color of the background */
{
FAR struct nxsvrmsg_setbgcolor_s *bgcolormsg =
(FAR struct nxsvrmsg_setbgcolor_s *)buffer;
/* Has the background color changed? */
if (!nxgl_colorcmp(fe.be.bgcolor, bgcolormsg->color))
{
/* Yes.. fill the background */
nxgl_colorcopy(fe.be.bgcolor, bgcolormsg->color);
nxbe_fill(&fe.be.bkgd, &fe.be.bkgd.bounds, bgcolormsg->color);
}
}
break;
#ifdef CONFIG_NX_XYINPUT
case NX_SVRMSG_MOUSEIN: /* New mouse report from mouse client */
{
FAR struct nxsvrmsg_mousein_s *mousemsg = (FAR struct nxsvrmsg_mousein_s *)buffer;
nxmu_mousein(&fe, &mousemsg->pt, mousemsg->buttons);
}
break;
#endif
#ifdef CONFIG_NX_KBD
case NX_SVRMSG_KBDIN: /* New keyboard report from keyboard client */
{
FAR struct nxsvrmsg_kbdin_s *kbdmsg = (FAR struct nxsvrmsg_kbdin_s *)buffer;
nxmu_kbdin(&fe, kbdmsg->nch, kbdmsg->ch);
}
break;
#endif
case NX_SVRMSG_REDRAWREQ: /* Request re-drawing of rectangular region */
{
FAR struct nxsvrmsg_redrawreq_s *redrawmsg = (FAR struct nxsvrmsg_redrawreq_s *)buffer;
nxfe_redrawreq(redrawmsg->wnd, &redrawmsg->rect);
}
break;
/* Messages sent to the background window **************************/
case NX_CLIMSG_REDRAW: /* Re-draw the background window */
{
FAR struct nxclimsg_redraw_s *redraw = (FAR struct nxclimsg_redraw_s *)buffer;
DEBUGASSERT(redraw->wnd == &fe.be.bkgd);
gvdbg("Re-draw background rect={(%d,%d),(%d,%d)}\n",
redraw->rect.pt1.x, redraw->rect.pt1.y,
redraw->rect.pt2.x, redraw->rect.pt2.y);
nxbe_fill(&fe.be.bkgd, &redraw->rect, fe.be.bgcolor);
}
break;
case NX_CLIMSG_MOUSEIN: /* Ignored */
case NX_CLIMSG_KBDIN:
break;
case NX_CLIMSG_CONNECTED: /* Shouldn't happen */
case NX_CLIMSG_DISCONNECTED:
default:
gdbg("Unrecognized command: %d\n", msg->msgid);
break;
}
}
errout:
nxmu_shutdown(&fe);
return OK;
}
