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// Joystick.cpp : Defines the entry point for the DLL application.
//
#include "StdAfx.h"
#if PSYCH_SYSTEM == PSYCH_WINDOWS
BOOL WINAPI LibMain(
HINSTANCE hinstDLL, //handle to this DLL module
DWORD fdwReason, //reason for calling function
LPVOID lpReserved) //reserved
{
//perform actions based on the reason for calling.
switch(fdwReason)
{
case DLL_PROCESS_ATTACH:
break;
case DLL_THREAD_ATTACH:
break;
case DLL_THREAD_DETACH:
break;
case DLL_PROCESS_DETACH:
break;
}
return TRUE; //successful DLL_PROCESS_ATTACH
}
#endif
static MexFunctionPtr SelectFunction(char *command)
{
ProjectTable *joystickTable=GetProjectTable();
// See if help is being requested
if (command[strlen(command)-1] == '?') {
joystickTable->giveHelp=TRUE;
command[strlen(command)-1]=0;
}
else {
joystickTable->giveHelp=FALSE;
}
// Recommended commands
if(PsychMatch(command,"GetNumJoysticks"))return &JOYSTICKGetNumJoysticks;
if(PsychMatch(command,"GetNumButtons"))return &JOYSTICKGetNumButtons;
if(PsychMatch(command,"GetNumAxes"))return &JOYSTICKGetNumAxes;
if(PsychMatch(command,"GetNumBalls"))return &JOYSTICKGetNumBalls;
if(PsychMatch(command,"GetNumHats"))return &JOYSTICKGetNumHats;
if(PsychMatch(command,"GetButton"))return &JOYSTICKGetButton;
if(PsychMatch(command,"GetAxis"))return &JOYSTICKGetAxis;
if(PsychMatch(command,"GetBall"))return &JOYSTICKGetBall;
if(PsychMatch(command,"GetHat"))return &JOYSTICKGetHat;
if(PsychMatch(command,"GetJoystickName"))return &JOYSTICKGetJoystickName;
if(PsychMatch(command,"GetJoystickNumbersFromName"))return &JOYSTICKGetJoystickNumbersFromName;
if(PsychMatch(command,"Unplug"))return &JOYSTICKUnplug;
// Unknown command.
return NULL;
}
/*
ROUTINE: mexFunction
PURPOSE:
Main entry point. Serves as a dispatch and handles
first time initialization.
*/
#define MAX_SYNOPSIS 100
#define MAX_CMD_NAME_LENGTH 100
void mexFunction(int nlhs, mxArray *plhs[], int nrhs, CONSTmxArray *prhs[])
{
ProjectTable *joystickTable=GetProjectTable();
static Boolean firstTime = TRUE;
static char *synopsis[MAX_SYNOPSIS];
MexFunctionPtr f;
char command[MAX_CMD_NAME_LENGTH];
// Initialization
if (firstTime) {
if (SDL_Init(SDL_INIT_JOYSTICK | SDL_INIT_VIDEO | SDL_INIT_AUDIO) < 0){
PrintfExit("Could not initialize SDL: %s\n", SDL_GetError());
}
mexPrintf("\nDEBUGGING VERSION OF JOYSTICK\n\n");
InitializeSynopsis(synopsis,sizeof(synopsis)/sizeof(synopsis[0]));
// Install cleanup routine
mexAtExit(&JoystickExitFunction);
firstTime = FALSE;
}
// If no args passed, we just print out a synopsis
if (nrhs == 0) {
int i;
for (i = 0; synopsis[i] != NULL; i++) {
printf("%s\n",synopsis[i]);
}
return;
}
// If windowPtr or [] is passed, remove the arg, and save it for later
if(IsDefaultMat(prhs[0]) || mxIsNumeric(prhs[0])){
joystickTable->joystickNumberArgument=prhs[0];
nrhs--;
prhs++;
}else {
joystickTable->joystickNumberArgument=NULL;
}
// Get command from first remaining argument
if (!mxIsChar(prhs[0])) {
PrintfExit("Usage: Joystick('Command',...);\n");
}
mxGetString(prhs[0],command,sizeof(command));
nrhs--;
prhs++;
// Call the appropriate routine
f=SelectFunction(command);
if (f == NULL) {
PrintfExit("Joystick: unknown '%s' command.",command);
}
(*f)(nlhs,plhs,nrhs,prhs);
// Superfluous tidying up.
joystickTable->giveHelp=0;
}
void InitializeSynopsis(char *synopsis[],int maxStrings)
{
int i=0;
synopsis[i++] = "Usage:";
synopsis[i++] = "\n% Get information on joystick availability.";
synopsis[i++] = useGetNumJoysticks;
synopsis[i++] = useGetJoystickName;
synopsis[i++] = useGetJoystickNumbersFromName;
synopsis[i++] = "\n% Get information on joystick configuration.";
synopsis[i++] = useGetNumButtons;
synopsis[i++] = useGetNumAxes;
synopsis[i++] = useGetNumBalls;
synopsis[i++] = useGetNumHats;
synopsis[i++] = "\n% Read joystick states.";
synopsis[i++] = useGetButton;
synopsis[i++] = useGetAxis;
synopsis[i++] = useGetBall;
synopsis[i++] = useGetHat;
synopsis[i++] = "\n% Unplug a joystick.";
synopsis[i++] = useUnplug;
synopsis[i++] = NULL;
if (i > maxStrings) {
PrintfExit("%s: increase dimension of synopsis[] from %ld to at least %ld and recompile.",__FILE__,(long)maxStrings,(long)i);
}
}
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