mirror of
https://github.com/kevinbentley/Descent3.git
synced 2025-01-22 19:55:23 +00:00
280 lines
9.5 KiB
C++
280 lines
9.5 KiB
C++
/*
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* joystick header
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*
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* $NoKeywords: $
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*/
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#include "joystick.h"
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#include "pserror.h"
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#include "pstypes.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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typedef struct tJoystickRecord {
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bool valid; // is this a valid device.
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bool remote; // is this device on another computer
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tJoystick joy; // joystick
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union {
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int joyid;
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// SOCKET joysock;
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} id; // information on accessing the device
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tJoyInfo caps; // controller capabilities
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tJoyPos pos; // current position
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} tJoystickRecord;
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// ---------------------------------------------------------------------------
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// globals
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static tJoystickRecord Joysticks[MAX_JOYSTICKS];
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int Joy_initialized = 0; // is our joystick system initialized?
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void joy_Close();
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bool joy_InitRemoteStick(tJoystick joy, char *server_adr, tJoystickRecord *stick);
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void joy_GetState(tJoystick stick, tJoyPos *pos);
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void joy_GetRemoteState(tJoystick stick, tJoyPos *pos);
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int joyGetNumDevs(void);
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// closes a stick
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// closes connection with controller.
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void joy_CloseStick(tJoystick joy);
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// ---------------------------------------------------------------------------
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// functions
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// joystick system initialization
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bool joy_Init(bool remote) {
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int i;
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// reinitialize joystick if already initialized.
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if (Joy_initialized) {
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joy_Close();
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} else {
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atexit(joy_Close);
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}
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// check if this OS supports joysticks
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if (!joyGetNumDevs() && !remote) {
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Joy_initialized = 0;
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return false;
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}
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// initialize joystick list
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for (i = 0; i < MAX_JOYSTICKS; i++)
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Joysticks[i].valid = false;
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Joy_initialized = 1;
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return true;
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}
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void joy_Close() {
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int i;
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for (i = 0; i < MAX_JOYSTICKS; i++)
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if (Joysticks[i].valid)
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joy_CloseStick((i == 0) ? JOYSTICK_1 : (i == 1) ? JOYSTICK_2 : JOYSTICK_1);
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}
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// initializes a joystick
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// if server_adr is valid, a link is opened to another machine with a controller.
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bool joy_InitStick(tJoystick joy, char *server_adr) {
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ASSERT(Joy_initialized);
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// close down already open joystick.
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if (Joysticks[(int)joy].valid)
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joy_CloseStick(joy);
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// okay, now if this is a remote joystick, open it
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if (server_adr) {
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return joy_InitRemoteStick(joy, server_adr, &Joysticks[(int)joy]);
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} else if (joyGetNumDevs() == 0) {
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return false;
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} else {
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// OPEN JOYSTICK HERE!
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// Setup struct
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return true;
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}
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return false;
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}
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// this function takes a server address and tries to initialize a stick that's on a machine
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// running the remote control server.
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bool joy_InitRemoteStick(tJoystick joy, char *server_adr, tJoystickRecord *stick) {
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/*
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sockaddr_in servaddr;
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int adr[4];
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ASSERT(server_adr);
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Joysticks[(int)joy].id.joysock = socket(AF_INET, SOCK_STREAM, 0);
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if (Joysticks[(int)joy].id.joysock == INVALID_SOCKET)
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return false;
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sscanf(server_adr, "%d.%d.%d.%d", &adr[0], &adr[1], &adr[2], &adr[3]);
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mprintf((0, "Connecting to remote control on %d.%d.%d.%d...\n", adr[0],adr[1],adr[2],adr[3]));
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servaddr.sin_family = AF_INET;
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servaddr.sin_port = JOY_PORT;
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servaddr.sin_addr.S_un.S_un_b.s_b1 = (ubyte)adr[0];
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servaddr.sin_addr.S_un.S_un_b.s_b2 = (ubyte)adr[1];
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servaddr.sin_addr.S_un.S_un_b.s_b3 = (ubyte)adr[2];
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servaddr.sin_addr.S_un.S_un_b.s_b4 = (ubyte)adr[3];
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if (connect(Joysticks[(int)joy].id.joysock, (struct sockaddr *)&servaddr, sizeof(servaddr)) == SOCKET_ERROR) {
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shutdown(Joysticks[(int)joy].id.joysock, 1);
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closesocket(Joysticks[(int)joy].id.joysock);
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Joysticks[(int)joy].valid = false;
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return false;
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}
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else {
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tJoyPacket packet;
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LINGER linger;
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int res;
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linger.l_onoff = 1;
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linger.l_linger = 2;
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setsockopt(Joysticks[(int)joy].id.joysock, SOL_SOCKET, SO_LINGER, (char *)&linger, sizeof(linger));
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Joysticks[(int)joy].valid = true;
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Joysticks[(int)joy].remote = true;
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Joysticks[(int)joy].joy = joy;
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// now wait to receive acknowledgement packet (joystick info will be stored here in a tJoyInfo format) "INFO"
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res = recv(Joysticks[(int)joy].id.joysock, (char *)&packet, sizeof(tJoyInfo) + strlen(JOY_INFO),0);
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if ( res == SOCKET_ERROR || !res) {
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shutdown(Joysticks[(int)joy].id.joysock, 1);
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closesocket(Joysticks[(int)joy].id.joysock);
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Joysticks[(int)joy].valid = false;
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return false;
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}
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mprintf((0, "RECV %c%c%c%c \n", packet.coda[0], packet.coda[1], packet.coda[2], packet.coda[3]));
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if (memcmp(packet.coda, JOY_INFO, strlen(JOY_INFO)) != 0) {
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mprintf((0, "Received non information packet from control server.\n"));
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shutdown(Joysticks[(int)joy].id.joysock, 1);
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closesocket(Joysticks[(int)joy].id.joysock);
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Joysticks[(int)joy].valid = false;
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return false;
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}
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memcpy(&Joysticks[(int)joy].caps, packet.buf, sizeof(tJoyInfo));
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// start polling. send "POLL"
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memcpy(packet.coda, JOY_POLL, strlen(JOY_POLL));
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send(Joysticks[(int)joy].id.joysock, (char *)&packet, strlen(JOY_POLL), 0);
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// start packet read thread.
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//@@ Thread_running[(int)joy] = false;
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//@@ unsigned thread_id;
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//@@ unsigned long thread_handle = _beginthreadex(NULL, 0, joy_ReadRemotePacket, &Joysticks[(int)joy], 1,
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&thread_id);
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//@@ if (thread_handle == 0) {
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//@@ Error("Remote joystick thread creation failed.");
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//@@ }
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//@@
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//@@ if (SetThreadPriority((HANDLE)thread_handle, THREAD_PRIORITY_NORMAL) == FALSE)
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//@@ Error("Remote joystick thread prioritization failed.");
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}
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*/
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return true;
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}
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// closes a stick
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// closes connection with controller.
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void joy_CloseStick(tJoystick joy) {
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ASSERT(Joysticks[(int)joy].valid);
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if (Joysticks[(int)joy].remote) {
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//@@ u_long arg = 1;
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//@@ ioctlsocket(Joysticks[(int)joy].id.joysock, FIONBIO, &arg);
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//@@ Thread_running[(int)joy] = false;
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//@@ Sleep(200);
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// shutdown(Joysticks[(int)joy].id.joysock, 1);
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// closesocket(Joysticks[(int)joy].id.joysock);
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}
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// CLOSE joystick here
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Joysticks[(int)joy].valid = false;
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}
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// returns true if joystick valid
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bool joy_IsValid(tJoystick joy) {
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if (Joysticks[(int)joy].valid)
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return true;
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else
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return false;
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}
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// retreive information about joystick.
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void joy_GetJoyInfo(tJoystick joy, tJoyInfo *info) {
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ASSERT(Joy_initialized);
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if (Joysticks[(int)joy].valid) {
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memcpy(info, &Joysticks[(int)joy].caps, sizeof(tJoyInfo));
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} else
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Int3(); // This should never happen.
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}
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// retreive uncalibrated position of joystick
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void joy_GetRawPos(tJoystick joy, tJoyPos *pos) {
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joy_GetPos(joy, pos);
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pos->x = (pos->x + 128) * JOYAXIS_RANGE;
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pos->y = (pos->y + 128) * JOYAXIS_RANGE;
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pos->z = (pos->z + 128) * JOYAXIS_RANGE;
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pos->r = (pos->r + 128) * JOYAXIS_RANGE;
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pos->u = (pos->u + 128) * JOYAXIS_RANGE;
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pos->v = (pos->v + 128) * JOYAXIS_RANGE;
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}
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// returns the state of a stick, remote or otherwise
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void joy_GetPos(tJoystick stick, tJoyPos *pos) {
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// ASSERT(Joy_initialized);
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pos->x = 0;
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pos->y = 0;
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pos->z = 0;
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pos->r = 0;
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pos->u = 0;
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pos->v = 0;
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pos->pov[0] = 0;
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pos->pov[1] = 0;
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pos->pov[2] = 0;
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pos->pov[3] = 0;
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pos->buttons = 0;
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pos->btn = 0;
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if (!Joysticks[(int)stick].valid)
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return;
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// retrieve joystick info from the net, or locally.
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if (Joysticks[(int)stick].remote) {
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joy_GetRemoteState(stick, pos);
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} else {
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// READ JOYSTICK HERE!!!!!!!!!!!
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}
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}
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// returns the position of a remote stick.
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void joy_GetRemoteState(tJoystick stick, tJoyPos *pos) {
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/*
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ASSERT(Joysticks[(int)stick].remote);
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tJoyPacket packet;
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// get next POSI packet
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recv(Joysticks[(int)stick].id.joysock, (char *)packet.coda, strlen(JOY_POS),0);
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if (memcmp(packet.coda, JOY_POS, strlen(JOY_POS)) == 0) {
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recv(Joysticks[(int)stick].id.joysock, (char *)packet.buf, sizeof(tJoyPos),0);
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memcpy(&Joysticks[(int)stick].pos, packet.buf, sizeof(tJoyPos));
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}
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pos->x = (int)((Joysticks[(int)stick].pos.x<<8)/(Joysticks[(int)stick].caps.maxx - Joysticks[(int)stick].caps.minx)) -
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128; pos->y = (int)((Joysticks[(int)stick].pos.y<<8)/(Joysticks[(int)stick].caps.maxy -
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Joysticks[(int)stick].caps.miny)) - 128; if (Joysticks[(int)stick].caps.axes_mask & JOYFLAG_ZVALID) pos->z =
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(int)((Joysticks[(int)stick].pos.z<<8)/(Joysticks[(int)stick].caps.maxz - Joysticks[(int)stick].caps.minz)) - 128;
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else
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pos->z = 0;
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if (Joysticks[(int)stick].caps.axes_mask & JOYFLAG_RVALID)
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pos->r = (int)((Joysticks[(int)stick].pos.r<<8)/(Joysticks[(int)stick].caps.maxr - Joysticks[(int)stick].caps.minr))
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- 128; else pos->r = 0; if (Joysticks[(int)stick].caps.axes_mask & JOYFLAG_UVALID) pos->u =
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(int)((Joysticks[(int)stick].pos.u<<8)/(Joysticks[(int)stick].caps.maxu - Joysticks[(int)stick].caps.minu)) - 128;
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else
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pos->u = 0;
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if (Joysticks[(int)stick].caps.axes_mask & JOYFLAG_VVALID)
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pos->v = (int)((Joysticks[(int)stick].pos.v<<8)/(Joysticks[(int)stick].caps.maxv - Joysticks[(int)stick].caps.minv))
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- 128; else pos->v = 0; if (Joysticks[(int)stick].caps.axes_mask & JOYFLAG_POVVALID) { pos->pov =
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(Joysticks[(int)stick].pos.pov == JOY_POVBACKWARD) ? JOYPOV_DOWN : (Joysticks[(int)stick].pos.pov == JOY_POVFORWARD) ?
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JOYPOV_UP : (Joysticks[(int)stick].pos.pov == JOY_POVLEFT) ? JOYPOV_LEFT : (Joysticks[(int)stick].pos.pov ==
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JOY_POVRIGHT) ? JOYPOV_RIGHT : JOYPOV_CENTER;
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}
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else
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pos->pov = JOYPOV_CENTER;
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pos->buttons = (unsigned)Joysticks[(int)stick].pos.buttons;
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pos->btn = (unsigned)Joysticks[(int)stick].pos.btn;
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// request poll for next packet POLL
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memcpy(packet.coda, JOY_POLL, strlen(JOY_POLL));
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send(Joysticks[(int)stick].id.joysock, (char *)&packet, strlen(JOY_POLL), 0);
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*/
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}
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void ddio_InternalJoySuspend(void) {}
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void ddio_InternalJoyResume(void) {}
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int joyGetNumDevs(void) { return 0; }
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void ddio_InternalJoyFrame(void) {}
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