lwjgl/src/native/win32/org_lwjgl_input_Controller.cpp

589 lines
17 KiB
C++

/*
* Copyright (c) 2002 Lightweight Java Game Library Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * 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.
*
* * Neither the name of 'Light Weight Java Game Library' 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.
*/
/**
* $Id$
*
* Win32 controller handling.
*
* @author Brian Matzon <brian@matzon.com>
* @version $Revision$
*/
#define WIN32_LEAN_AND_MEAN
#include "org_lwjgl_input_Controller.h"
#include <windows.h>
#undef DIRECTINPUT_VERSION
#define DIRECTINPUT_VERSION 0x0500
#include <dinput.h>
#define CONTROLLER_AXISMAX 1000 // Maxmimum range to which we'll gauge the swing
#define CONTROLLER_AXISMIN -1000 // Minimum range to which we'll gauge the swing
extern HINSTANCE dll_handle;
extern HWND hwnd;
static IDirectInput* cDI; // DI instance
static IDirectInputDevice2* cDIDevice; // DI Device instance
static DIJOYSTATE2 cJS; // State of Controller
static int cButtoncount = 0; // Temporary buttoncount
static bool cHasx; // Temporary xaxis check
static bool cHasrx; // Temporary rotational xaxis check
static bool cHasy; // Temporary yaxis check
static bool cHasry; // Temporary rotational yaxis check
static bool cHasz; // Temporary zaxis check
static bool cHasrz; // Temporary rotational zaxis check
static bool cHaspov; // Temporary pov check
static bool cHasslider; // Temporary slider check
static JNIEnv* cEnvironment; // JNIEnvironment copy
static bool cCreate_success; // bool used to determine successfull creation
static bool cFirstTimeInitialization = true; // boolean to determine first time initialization
// Cached fields of Controller.java
static jclass clsController;
static jfieldID fidCButtonCount;
static jfieldID fidCHasXAxis;
static jfieldID fidCHasRXAxis;
static jfieldID fidCHasYAxis;
static jfieldID fidCHasRYAxis;
static jfieldID fidCHasZAxis;
static jfieldID fidCHasRZAxis;
static jfieldID fidCHasPOV;
static jfieldID fidCHasSlider;
static jfieldID fidCButtons;
static jfieldID fidCX;
static jfieldID fidCRX;
static jfieldID fidCY;
static jfieldID fidCRY;
static jfieldID fidCZ;
static jfieldID fidCRZ;
static jfieldID fidCPOV;
static jfieldID fidCSlider;
// Function prototypes (defined in the cpp file, since header file is generic across platforms
void EnumerateControllerCapabilities();
void EnumerateControllers();
BOOL CALLBACK EnumControllerCallback(LPCDIDEVICEINSTANCE pdinst, LPVOID pvRef);
BOOL CALLBACK EnumControllerObjectsCallback(LPCDIDEVICEOBJECTINSTANCE lpddoi, LPVOID pvRef);
void ShutdownController();
void CreateController(LPCDIDEVICEINSTANCE lpddi);
void SetupController();
void InitializeControllerFields();
void CacheControllerFields();
void UpdateControllerFields();
void SetControllerCapabilities();
/**
* Initializes any field ids
*/
JNIEXPORT void JNICALL Java_org_lwjgl_input_Controller_initIDs(JNIEnv * env, jclass clazz) {
cEnvironment = env;
clsController = clazz;
/* Cache fields in Controller */
CacheControllerFields();
}
/**
* Called when the Controller instance is to be created
*/
JNIEXPORT jboolean JNICALL Java_org_lwjgl_input_Controller_nCreate(JNIEnv *env, jclass clazz) {
// Create the DirectInput object.
HRESULT hr;
hr = DirectInputCreate(dll_handle, DIRECTINPUT_VERSION, &cDI, NULL);
if (FAILED(hr)) {
#if _DEBUG
printf("DirectInputCreate failed\n");
#endif
ShutdownController();
return JNI_FALSE;
}
/* Find all Controllers */
EnumerateControllers();
if (!cCreate_success) {
#if _DEBUG
printf("EnumerateControllers failed\n");
#endif
ShutdownController();
return JNI_FALSE;
}
/* check that we got at least 1 controller */
if (cDIDevice == NULL) {
#if _DEBUG
printf("No devices found during enumeration\n");
#endif
ShutdownController();
return JNI_FALSE;
}
//check for first time initialization - need to detect capabilities
if (cFirstTimeInitialization) {
cFirstTimeInitialization = false;
/* Enumerate capabilities of Controller */
EnumerateControllerCapabilities();
if (!cCreate_success) {
#if _DEBUG
printf("EnumerateControllerCapabilities failed\n");
#endif
ShutdownController();
return JNI_FALSE;
}
/* Do setup of Controller */
SetupController();
/* Initialize any fields on the Controller */
InitializeControllerFields();
/* Set capabilities */
SetControllerCapabilities();
} else {
if(cCreate_success) {
/* Do setup of Controller */
SetupController();
/* Initialize any fields on the Controller */
InitializeControllerFields();
}
}
/* Aquire the Controller */
hr = cDIDevice->Acquire();
if(FAILED(hr)) {
#if _DEBUG
printf("Acquire failed\n");
#endif
ShutdownController();
return JNI_FALSE;
}
return cCreate_success ? JNI_TRUE : JNI_FALSE;
}
/*
* Class: org_lwjgl_input_Controller
* Method: nDestroy
* Signature: ()V
*/
JNIEXPORT void JNICALL Java_org_lwjgl_input_Controller_nDestroy(JNIEnv *env, jclass clazz) {
ShutdownController();
}
/*
* Class: org_lwjgl_input_Controller
* Method: nPoll
* Signature: ()V
*/
JNIEXPORT void JNICALL Java_org_lwjgl_input_Controller_nPoll(JNIEnv * env, jclass clazz) {
HRESULT hRes;
// poll the Controller to read the current state
hRes = cDIDevice->Poll();
if (FAILED(hRes)) {
#if _DEBUG
printf("Poll fail\n");
#endif
//check if we need to reaquire
if(hRes == DIERR_INPUTLOST || hRes == DIERR_NOTACQUIRED) {
cDIDevice->Acquire();
#if _DEBUG
printf("DIERR_INPUTLOST, reaquiring input : cCreate_success=%d\n", cCreate_success);
#endif
}
return;
}
UpdateControllerFields();
}
/**
* Shutdown DI
*/
void ShutdownController() {
// release device
if (cDIDevice != NULL) {
cDIDevice->Unacquire();
cDIDevice->Release();
cDIDevice = NULL;
}
}
/**
* Enumerates the capabilities of the Controller attached to the system
*/
void EnumerateControllerCapabilities() {
HRESULT hr;
hr = cDIDevice->EnumObjects(EnumControllerObjectsCallback, NULL, DIDFT_ALL);
if FAILED(hr) {
#if _DEBUG
printf("EnumObjects failed\n");
#endif
cCreate_success = false;
return;
}
cCreate_success = true;
}
/**
* Enumerates the Controllers attached to the system
*/
void EnumerateControllers() {
HRESULT hr;
hr = cDI->EnumDevices(DIDEVTYPE_JOYSTICK, EnumControllerCallback, 0, DIEDFL_ATTACHEDONLY);
if FAILED(hr) {
#if _DEBUG
printf("EnumDevices failed\n");
#endif
cCreate_success = false;
return;
}
cCreate_success = true;
}
/**
* Callback from EnumDevices. Called for each Controller attached to the system
*/
BOOL CALLBACK EnumControllerCallback(LPCDIDEVICEINSTANCE pdinst, LPVOID pvRef) {
/* Add the Controller */
CreateController(pdinst);
/* just stop after 1st Controller */
return DIENUM_STOP;
}
/**
* Callback from EnumObjects. Called for each "object" on the Controller.
*/
BOOL CALLBACK EnumControllerObjectsCallback(LPCDIDEVICEOBJECTINSTANCE lpddoi, LPVOID pvRef) {
#if _DEBUG
printf("found %s\n", lpddoi->tszName);
#endif
if(lpddoi->guidType == GUID_Button) {
cButtoncount++;
} else if(lpddoi->guidType == GUID_XAxis) {
cHasx = true;
} else if(lpddoi->guidType == GUID_YAxis) {
cHasy = true;
} else if(lpddoi->guidType == GUID_ZAxis){
cHasz = true;
} else if (lpddoi->guidType == GUID_POV){
cHaspov = true;
} else if (lpddoi->guidType == GUID_Slider){
cHasslider = true;
} else if (lpddoi->guidType == GUID_RxAxis) {
cHasrx = true;
} else if (lpddoi->guidType == GUID_RyAxis) {
cHasry = true;
} else if (lpddoi->guidType == GUID_RzAxis) {
cHasrz = true;
#if _DEBUG
} else {
printf("Unhandled object found: %s\n", lpddoi->tszName);
#endif
}
return DIENUM_CONTINUE;
}
/**
* Creates the specified device as a Controller
*/
void CreateController(LPCDIDEVICEINSTANCE lpddi) {
HRESULT hr;
hr = cDI->CreateDevice(lpddi->guidInstance, (LPDIRECTINPUTDEVICE*) &cDIDevice, NULL);
if FAILED(hr) {
#if _DEBUG
printf("CreateDevice failed\n");
#endif
cCreate_success = false;
return;
}
cCreate_success = true;
}
/**
* Sets up the Controller properties
*/
void SetupController() {
// set Controller data format
if(cDIDevice->SetDataFormat(&c_dfDIJoystick2) != DI_OK) {
#if _DEBUG
printf("SetDataFormat failed\n");
#endif
cCreate_success = false;
return;
}
// set the cooperative level
if(cDIDevice->SetCooperativeLevel(hwnd, DISCL_EXCLUSIVE | DISCL_FOREGROUND) != DI_OK) {
#if _DEBUG
printf("SetCooperativeLevel failed\n");
#endif
cCreate_success = false;
return;
}
// set range to (-1000 ... +1000)
// This lets us test against 0 to see which way the stick is pointed.
DIPROPRANGE diprg;
diprg.diph.dwSize = sizeof(diprg);
diprg.diph.dwHeaderSize = sizeof(diprg.diph);
diprg.diph.dwHow = DIPH_BYOFFSET;
diprg.lMin = CONTROLLER_AXISMIN;
diprg.lMax = CONTROLLER_AXISMAX;
// set X-axis
if(cHasx) {
diprg.diph.dwObj = DIJOFS_X;
if(cDIDevice->SetProperty(DIPROP_RANGE, &diprg.diph) != DI_OK) {
#if _DEBUG
printf("SetProperty(DIJOFS_X) failed\n");
#endif
cCreate_success = false;
return;
}
}
// set RX-axis
if(cHasrx) {
diprg.diph.dwObj = DIJOFS_RX;
if(cDIDevice->SetProperty(DIPROP_RANGE, &diprg.diph) != DI_OK) {
#if _DEBUG
printf("SetProperty(DIJOFS_RX) failed\n");
#endif
cCreate_success = false;
return;
}
}
// set Y-axis
if(cHasy) {
diprg.diph.dwObj = DIJOFS_Y;
if(cDIDevice->SetProperty(DIPROP_RANGE, &diprg.diph) != DI_OK) {
#if _DEBUG
printf("SetProperty(DIJOFS_Y) failed\n");
#endif
cCreate_success = false;
return;
}
}
// set RY-axis
if(cHasry) {
diprg.diph.dwObj = DIJOFS_RY;
if(cDIDevice->SetProperty(DIPROP_RANGE, &diprg.diph) != DI_OK) {
#if _DEBUG
printf("SetProperty(DIJOFS_RY) failed\n");
#endif
cCreate_success = false;
return;
}
}
// set Z-axis
if(cHasz) {
diprg.diph.dwObj = DIJOFS_Z;
if(cDIDevice->SetProperty(DIPROP_RANGE, &diprg.diph) != DI_OK) {
#if _DEBUG
printf("SetProperty(DIJOFS_Z) failed\n");
#endif
cCreate_success = false;
return;
}
}
// set RZ-axis
if(cHasrz) {
diprg.diph.dwObj = DIJOFS_RZ;
if(cDIDevice->SetProperty(DIPROP_RANGE, &diprg.diph) != DI_OK) {
#if _DEBUG
printf("SetProperty(DIJOFS_RZ) failed\n");
#endif
cCreate_success = false;
return;
}
}
//
// Lastly slider
// using z axis since we're running dx 5
//
if(cHasslider) {
diprg.diph.dwObj = DIJOFS_Z;
if(cDIDevice->SetProperty(DIPROP_RANGE, &diprg.diph) != DI_OK) {
#if _DEBUG
printf("SetProperty(DIJOFS_Z(SLIDER)) failed\n");
#endif
cCreate_success = false;
return;
}
}
cCreate_success = true;
}
/**
* Sets the fields on the Controller
*/
void InitializeControllerFields() {
//create buttons array
jbooleanArray cButtonsArray = cEnvironment->NewBooleanArray(cButtoncount);
//set buttons array
cEnvironment->SetStaticObjectField(clsController, fidCButtons, cButtonsArray);
}
/**
* Updates the fields on the Controller
*/
void UpdateControllerFields() {
HRESULT hRes;
// get data from the Controller
hRes = cDIDevice->GetDeviceState(sizeof(DIJOYSTATE2), &cJS);
if (hRes != DI_OK) {
// did the read fail because we lost input for some reason?
// if so, then attempt to reacquire.
if(hRes == DIERR_INPUTLOST || hRes == DIERR_NOTACQUIRED) {
cDIDevice->Acquire();
#if _DEBUG
printf("DIERR_INPUTLOST, reaquiring input : cCreate_success=%d\n", cCreate_success);
#endif
}
#if _DEBUG
printf("Error getting controller state: %d\n", hRes);
#endif
return;
}
//axis's
if(cHasx) {
cEnvironment->SetStaticIntField(clsController, fidCX, cJS.lX);
}
if(cHasy) {
cEnvironment->SetStaticIntField(clsController, fidCY, cJS.lY);
}
if(cHasz) {
cEnvironment->SetStaticIntField(clsController, fidCZ, cJS.lZ);
}
//rotational axis
if(cHasrx) {
cEnvironment->SetStaticIntField(clsController, fidCRX, cJS.lRx);
}
if(cHasry) {
cEnvironment->SetStaticIntField(clsController, fidCRY, cJS.lRy);
}
if(cHasrz) {
cEnvironment->SetStaticIntField(clsController, fidCRZ, cJS.lRz);
}
//buttons
for (int i = 0; i < cButtoncount; i++) {
if (cJS.rgbButtons[i] != 0) {
cJS.rgbButtons[i] = JNI_TRUE;
} else {
cJS.rgbButtons[i] = JNI_FALSE;
}
}
jbooleanArray buttonsArray = (jbooleanArray) cEnvironment->GetStaticObjectField(clsController, fidCButtons);
cEnvironment->SetBooleanArrayRegion(buttonsArray, 0, cButtoncount, cJS.rgbButtons);
//pov
if(cHaspov) {
cEnvironment->SetStaticIntField(clsController, fidCPOV, cJS.rgdwPOV[0]);
}
//slider
if(cHasslider) {
cEnvironment->SetStaticIntField(clsController, fidCSlider, cJS.lZ);
}
}
/**
* Sets the capabilities of the Controller
*/
void SetControllerCapabilities() {
//set buttoncount
cEnvironment->SetStaticIntField(clsController, fidCButtonCount, cButtoncount);
//set axis
cEnvironment->SetStaticBooleanField(clsController, fidCHasXAxis, cHasx);
cEnvironment->SetStaticBooleanField(clsController, fidCHasYAxis, cHasy);
cEnvironment->SetStaticBooleanField(clsController, fidCHasZAxis, cHasz);
//set rotational axis
cEnvironment->SetStaticBooleanField(clsController, fidCHasRXAxis, cHasrx);
cEnvironment->SetStaticBooleanField(clsController, fidCHasRYAxis, cHasry);
cEnvironment->SetStaticBooleanField(clsController, fidCHasRZAxis, cHasrz);
//set pov
cEnvironment->SetStaticBooleanField(clsController, fidCHasPOV, cHaspov);
//set slider
cEnvironment->SetStaticBooleanField(clsController, fidCHasSlider, cHasslider);
}
/**
* Caches the field ids for quicker access
*/
void CacheControllerFields() {
fidCButtonCount = cEnvironment->GetStaticFieldID(clsController, "buttonCount", "I");
fidCHasXAxis = cEnvironment->GetStaticFieldID(clsController, "hasXAxis", "Z");
fidCHasRXAxis = cEnvironment->GetStaticFieldID(clsController, "hasRXAxis", "Z");
fidCHasYAxis = cEnvironment->GetStaticFieldID(clsController, "hasYAxis", "Z");
fidCHasRYAxis = cEnvironment->GetStaticFieldID(clsController, "hasRYAxis", "Z");
fidCHasZAxis = cEnvironment->GetStaticFieldID(clsController, "hasZAxis", "Z");
fidCHasRZAxis = cEnvironment->GetStaticFieldID(clsController, "hasRZAxis", "Z");
fidCHasPOV = cEnvironment->GetStaticFieldID(clsController, "hasPOV", "Z");
fidCHasSlider = cEnvironment->GetStaticFieldID(clsController, "hasSlider", "Z");
fidCButtons = cEnvironment->GetStaticFieldID(clsController, "buttons", "[Z");
fidCX = cEnvironment->GetStaticFieldID(clsController, "x", "I");
fidCRX = cEnvironment->GetStaticFieldID(clsController, "rx", "I");
fidCY = cEnvironment->GetStaticFieldID(clsController, "y", "I");
fidCRY = cEnvironment->GetStaticFieldID(clsController, "ry", "I");
fidCZ = cEnvironment->GetStaticFieldID(clsController, "z", "I");
fidCRZ = cEnvironment->GetStaticFieldID(clsController, "rz", "I");
fidCPOV = cEnvironment->GetStaticFieldID(clsController, "pov", "I");
fidCSlider = cEnvironment->GetStaticFieldID(clsController, "slider", "I");
}