| /**************************************************************************** |
| * graphics/nxmu/nxmu_server.c |
| * |
| * Copyright (C) 2008-2010 Gregory Nutt. All rights reserved. |
| * Author: Gregory Nutt <spudmonkey@racsa.co.cr> |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * 3. Neither the name NuttX nor the names of its contributors may be |
| * used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
| * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| * |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Included Files |
| ****************************************************************************/ |
| |
| #include <nuttx/config.h> |
| |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <semaphore.h> |
| #include <mqueue.h> |
| #include <fcntl.h> |
| #include <errno.h> |
| #include <debug.h> |
| |
| #include <nuttx/nx.h> |
| #include "nxfe.h" |
| |
| /**************************************************************************** |
| * Pre-Processor Definitions |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Private Types |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Private Data |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Public Data |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Private Functions |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Name: nxmu_disconnect |
| ****************************************************************************/ |
| |
| static inline void nxmu_disconnect(FAR struct nxfe_conn_s *conn) |
| { |
| struct nxclimsg_disconnected_s outmsg; |
| int ret; |
| |
| /* Send the handshake message back to the client */ |
| |
| outmsg.msgid = NX_CLIMSG_DISCONNECTED; |
| |
| ret = mq_send(conn->swrmq, &outmsg, sizeof(struct nxclimsg_disconnected_s), NX_CLIMSG_PRIO); |
| if (ret < 0) |
| { |
| gdbg("mq_send failed: %d\n", errno); |
| } |
| |
| /* Close the outgoing client message queue */ |
| |
| (void)mq_close(conn->swrmq); |
| } |
| |
| /**************************************************************************** |
| * Name: nxmu_connect |
| ****************************************************************************/ |
| |
| static inline void nxmu_connect(FAR struct nxfe_conn_s *conn) |
| { |
| char mqname[NX_CLIENT_MXNAMELEN]; |
| struct nxclimsg_connected_s outmsg; |
| int ret; |
| |
| /* Create the client MQ name */ |
| |
| sprintf(mqname, NX_CLIENT_MQNAMEFMT, conn->cid); |
| |
| /* Open the client MQ -- this should have already been created by the client */ |
| |
| conn->swrmq = mq_open(mqname, O_WRONLY); |
| if (conn->swrmq == (mqd_t)-1) |
| { |
| gdbg("mq_open(%s) failed: %d\n", mqname, errno); |
| outmsg.msgid = NX_CLIMSG_DISCONNECTED; |
| } |
| |
| /* Send the handshake message back to the client */ |
| |
| outmsg.msgid = NX_CLIMSG_CONNECTED; |
| |
| ret = mq_send(conn->swrmq, &outmsg, sizeof(struct nxclimsg_connected_s), NX_CLIMSG_PRIO); |
| if (ret < 0) |
| { |
| gdbg("mq_send failed: %d\n", errno); |
| } |
| } |
| |
| /**************************************************************************** |
| * Name: nxmu_release |
| ****************************************************************************/ |
| |
| static int nxmu_release(FAR struct nxfe_state_s *fe) |
| { |
| FAR struct nxbe_window_s *wnd; |
| struct nxclimsg_s outmsg; |
| int ret; |
| |
| /* Don't want windows to close while we do this */ |
| |
| for (wnd = fe->be.topwnd; wnd; wnd = wnd->below) |
| { |
| outmsg.msgid = NX_CLIMSG_DISCONNECTED; |
| ret = mq_send(wnd->conn->swrmq, &outmsg, sizeof(struct nxclimsg_s), NX_CLIMSG_PRIO); |
| if (ret < 0) |
| { |
| gdbg("mq_send failed: %d\n", errno); |
| } |
| } |
| |
| return OK; |
| } |
| |
| /**************************************************************************** |
| * Name: nxmu_shutdown |
| ****************************************************************************/ |
| |
| static inline void nxmu_shutdown(FAR struct nxfe_state_s *fe) |
| { |
| FAR struct nxbe_window_s *wnd; |
| |
| /* Inform all of the clients in the window list that the server is |
| * exit-ting. Notes: (1) that the following loop will probably attempt to |
| * disconnect clients multiple times because one client may have multiple |
| * windows: The first disconnect will fail; subsequent will return errors |
| * that are ignored. (2) The final window to be disconnected will be the |
| * background window, thus close all of the servers message queues. |
| */ |
| |
| for (wnd = fe->be.topwnd; wnd; wnd = wnd->below) |
| { |
| (void)nxmu_disconnect(wnd->conn); |
| } |
| } |
| |
| /**************************************************************************** |
| * Name: nxmu_setup |
| ****************************************************************************/ |
| |
| static inline int nxmu_lcdsetup(FAR const char *mqname, |
| FAR NX_DRIVERTYPE *dev, |
| FAR struct nxfe_state_s *fe) |
| { |
| struct mq_attr attr; |
| int ret; |
| |
| memset(fe, 0, sizeof(struct nxfe_state_s)); |
| |
| /* Configure the framebuffer/LCD device */ |
| |
| ret = nxbe_configure(dev, &fe->be); |
| if (ret < 0) |
| { |
| gdbg("nxbe_configure failed: %d\n", -ret); |
| errno = -ret; |
| return ERROR; |
| } |
| |
| #if CONFIG_FB_CMAP |
| ret = nxbe_colormap(dev); |
| if (ret < 0) |
| { |
| gdbg("nxbe_colormap failed: %d\n", -ret); |
| errno = -ret; |
| return ERROR; |
| } |
| #endif /* CONFIG_FB_CMAP */ |
| |
| /* Initialize the non-NULL elements of the server connection structure. |
| * Oddly, this strcture represents the connection between the server and |
| * itself. |
| * |
| * Open the incoming server MQ. The server receives messages on the |
| * background window's incoming message queue. |
| */ |
| |
| attr.mq_maxmsg = CONFIG_NX_MXSERVERMSGS; |
| attr.mq_msgsize = NX_MXSVRMSGLEN; |
| attr.mq_flags = 0; |
| |
| fe->conn.crdmq = mq_open(mqname, O_RDONLY|O_CREAT, 0666, &attr); |
| if (fe->conn.crdmq == (mqd_t)-1) |
| { |
| gdbg("mq_open(%s) failed: %d\n", mqname, errno); |
| return ERROR; /* mq_open sets errno */ |
| } |
| |
| /* NOTE that the outgoing client MQ (cwrmq) is not initialized. The |
| * background window never initiates messages. |
| */ |
| |
| /* Open the outgoing server MQ. This is used to send messages to the |
| * background window which will, of course, be received and handled by |
| * the server message loop. |
| */ |
| |
| fe->conn.swrmq = mq_open(mqname, O_WRONLY); |
| if (fe->conn.swrmq == (mqd_t)-1) |
| { |
| gdbg("mq_open(%s) failed: %d\n", mqname, errno); |
| mq_close(fe->conn.crdmq); |
| return ERROR; /* mq_open sets errno */ |
| } |
| |
| /* The server is now "connected" to itself via the background window */ |
| |
| fe->conn.state = NX_CLISTATE_CONNECTED; |
| |
| /* Initialize the non-NULL elements of the background window */ |
| |
| fe->be.bkgd.conn = &fe->conn; |
| fe->be.bkgd.be = (FAR struct nxbe_state_s*)fe; |
| |
| fe->be.bkgd.bounds.pt2.x = fe->be.vinfo.xres - 1; |
| fe->be.bkgd.bounds.pt2.y = fe->be.vinfo.yres - 1; |
| |
| /* Complete initialization of the server state structure. The |
| * window list contains only one element: The background window |
| * with nothing else above or below it |
| */ |
| |
| fe->be.topwnd = &fe->be.bkgd; |
| |
| /* Initialize the mouse position */ |
| |
| #ifdef CONFIG_NX_MOUSE |
| nxmu_mouseinit(fe->be.vinfo.xres, fe->be.vinfo.yres); |
| #endif |
| return OK; |
| } |
| |
| /**************************************************************************** |
| * Public Functions |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Name: nx_runinstance |
| * |
| * Description: |
| * This is the server entry point. It does not return; the calling thread |
| * is dedicated to supporting NX server. |
| * |
| * NOTE that multiple instances of the NX server may run at the same time, |
| * each with different callback and message queue names. |
| * |
| * Input Parameters: |
| * mqname - The name for the server incoming message queue |
| * dev - Vtable "object" of the framebuffer/LCD "driver" to use |
| * |
| * Return: |
| * This function usually does not return. If it does return, it will |
| * return ERROR and errno will be set appropriately. |
| * |
| ****************************************************************************/ |
| |
| 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_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_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_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); |
| } |
| break; |
| |
| case NX_SVRMSG_SETBGCOLOR: /* Set the color of the background */ |
| { |
| FAR struct nxsvrmsg_setbgcolor_s *bgcolormsg = (FAR struct nxsvrmsg_setbgcolor_s *)buffer; |
| nxgl_colorcopy(fe.be.bgcolor, bgcolormsg->color); |
| nxbe_fill(&fe.be.bkgd, &fe.be.bkgd.bounds, bgcolormsg->color); |
| } |
| break; |
| |
| #ifdef CONFIG_NX_MOUSE |
| 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 |
| |
| /* Messages sent to the backgound 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; |
| } |
