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[Android] Hotplugging support for joysticks

This commit is contained in:
Gabriel Jacobo 2013-12-10 16:24:11 -03:00
parent d01ad02be7
commit bfcd28c1e6
6 changed files with 440 additions and 300 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
WhatsNew.txt
View File

@ -16,6 +16,7 @@ Android:
* Joystick support (minimum SDK version required to build SDL is now 12, * Joystick support (minimum SDK version required to build SDL is now 12,
the required runtime version remains at 10, but on such devices joystick the required runtime version remains at 10, but on such devices joystick
support won't be available). support won't be available).
* Hotplugging support for joysticks
Linux: Linux:
* Fixed fullscreen and focused behavior when receiving NotifyGrab events * Fixed fullscreen and focused behavior when receiving NotifyGrab events

139
android-project/src/org/libsdl/app/SDLActivity.java
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@ -256,9 +256,9 @@ public class SDLActivity extends Activity {
public static native void nativePause(); public static native void nativePause();
public static native void nativeResume(); public static native void nativeResume();
public static native void onNativeResize(int x, int y, int format); public static native void onNativeResize(int x, int y, int format);
public static native int onNativePadDown(int padId, int keycode); public static native int onNativePadDown(int device_id, int keycode);
public static native int onNativePadUp(int padId, int keycode); public static native int onNativePadUp(int device_id, int keycode);
public static native void onNativeJoy(int joyId, int axis, public static native void onNativeJoy(int device_id, int axis,
float value); float value);
public static native void onNativeKeyDown(int keycode); public static native void onNativeKeyDown(int keycode);
public static native void onNativeKeyUp(int keycode); public static native void onNativeKeyUp(int keycode);
@ -270,6 +270,10 @@ public class SDLActivity extends Activity {
public static native void onNativeSurfaceChanged(); public static native void onNativeSurfaceChanged();
public static native void onNativeSurfaceDestroyed(); public static native void onNativeSurfaceDestroyed();
public static native void nativeFlipBuffers(); public static native void nativeFlipBuffers();
public static native int nativeAddJoystick(int device_id, String name,
int is_accelerometer, int nbuttons,
int naxes, int nhats, int nballs);
public static native int nativeRemoveJoystick(int device_id);
public static void flipBuffers() { public static void flipBuffers() {
SDLActivity.nativeFlipBuffers(); SDLActivity.nativeFlipBuffers();
@ -460,29 +464,16 @@ public class SDLActivity extends Activity {
} }
// Joystick glue code, just a series of stubs that redirect to the SDLJoystickHandler instance // Joystick glue code, just a series of stubs that redirect to the SDLJoystickHandler instance
public static int getNumJoysticks() {
return mJoystickHandler.getNumJoysticks();
}
public static String getJoystickName(int joy) {
return mJoystickHandler.getJoystickName(joy);
}
public static int getJoystickAxes(int joy) {
return mJoystickHandler.getJoystickAxes(joy);
}
public static boolean handleJoystickMotionEvent(MotionEvent event) { public static boolean handleJoystickMotionEvent(MotionEvent event) {
return mJoystickHandler.handleMotionEvent(event); return mJoystickHandler.handleMotionEvent(event);
} }
/** public static void pollInputDevices() {
* @param devId the device id to get opened joystick id for. if (SDLActivity.mSDLThread != null) {
* @return joystick id for device id or -1 if there is none. mJoystickHandler.pollInputDevices();
*/
public static int getJoyId(int devId) {
return mJoystickHandler.getJoyId(devId);
} }
}
} }
/** /**
@ -660,19 +651,16 @@ class SDLSurface extends SurfaceView implements SurfaceHolder.Callback,
if ( (event.getSource() & 0x00000401) != 0 || /* API 12: SOURCE_GAMEPAD */ if ( (event.getSource() & 0x00000401) != 0 || /* API 12: SOURCE_GAMEPAD */
(event.getSource() & InputDevice.SOURCE_DPAD) != 0 ) { (event.getSource() & InputDevice.SOURCE_DPAD) != 0 ) {
int id = SDLActivity.getJoyId( event.getDeviceId() );
if (id != -1) {
if (event.getAction() == KeyEvent.ACTION_DOWN) { if (event.getAction() == KeyEvent.ACTION_DOWN) {
if (SDLActivity.onNativePadDown(id, keyCode) == 0) { if (SDLActivity.onNativePadDown(event.getDeviceId(), keyCode) == 0) {
return true; return true;
} }
} else if (event.getAction() == KeyEvent.ACTION_UP) { } else if (event.getAction() == KeyEvent.ACTION_UP) {
if (SDLActivity.onNativePadUp(id, keyCode) == 0) { if (SDLActivity.onNativePadUp(event.getDeviceId(), keyCode) == 0) {
return true; return true;
} }
} }
} }
}
if( (event.getSource() & InputDevice.SOURCE_KEYBOARD) != 0) { if( (event.getSource() & InputDevice.SOURCE_KEYBOARD) != 0) {
if (event.getAction() == KeyEvent.ACTION_DOWN) { if (event.getAction() == KeyEvent.ACTION_DOWN) {
@ -916,36 +904,20 @@ class SDLInputConnection extends BaseInputConnection {
/* A null joystick handler for API level < 12 devices (the accelerometer is handled separately) */ /* A null joystick handler for API level < 12 devices (the accelerometer is handled separately) */
class SDLJoystickHandler { class SDLJoystickHandler {
public int getNumJoysticks() {
return 0;
}
public String getJoystickName(int joy) {
return "";
}
public int getJoystickAxes(int joy) {
return 0;
}
/**
* @param devId the device id to get opened joystick id for.
* @return joystick id for device id or -1 if there is none.
*/
public int getJoyId(int devId) {
return -1;
}
public boolean handleMotionEvent(MotionEvent event) { public boolean handleMotionEvent(MotionEvent event) {
return false; return false;
} }
public void pollInputDevices() {
}
} }
/* Actual joystick functionality available for API >= 12 devices */ /* Actual joystick functionality available for API >= 12 devices */
class SDLJoystickHandler_API12 extends SDLJoystickHandler { class SDLJoystickHandler_API12 extends SDLJoystickHandler {
class SDLJoystick { class SDLJoystick {
public int id; public int device_id;
public String name; public String name;
public ArrayList<InputDevice.MotionRange> axes; public ArrayList<InputDevice.MotionRange> axes;
} }
@ -953,17 +925,25 @@ class SDLJoystickHandler_API12 extends SDLJoystickHandler {
private ArrayList<SDLJoystick> mJoysticks; private ArrayList<SDLJoystick> mJoysticks;
public SDLJoystickHandler_API12() { public SDLJoystickHandler_API12() {
/* FIXME: Move the joystick initialization code to its own function and support hotplugging of devices */
mJoysticks = new ArrayList<SDLJoystick>(); mJoysticks = new ArrayList<SDLJoystick>();
}
@Override
public void pollInputDevices() {
int[] deviceIds = InputDevice.getDeviceIds(); int[] deviceIds = InputDevice.getDeviceIds();
for(int i=0; i<deviceIds.length; i++) { // It helps processing the device ids in reverse order
SDLJoystick joystick = new SDLJoystick(); // For example, in the case of the XBox 360 wireless dongle,
InputDevice joystickDevice = InputDevice.getDevice(deviceIds[i]); // so the first controller seen by SDL matches what the receiver
// considers to be the first controller
for(int i=deviceIds.length-1; i>-1; i--) {
SDLJoystick joystick = getJoystick(deviceIds[i]);
if (joystick == null) {
joystick = new SDLJoystick();
InputDevice joystickDevice = InputDevice.getDevice(deviceIds[i]);
if( (joystickDevice.getSources() & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) { if( (joystickDevice.getSources() & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) {
joystick.id = deviceIds[i]; joystick.device_id = deviceIds[i];
joystick.name = joystickDevice.getName(); joystick.name = joystickDevice.getName();
joystick.axes = new ArrayList<InputDevice.MotionRange>(); joystick.axes = new ArrayList<InputDevice.MotionRange>();
@ -974,33 +954,43 @@ class SDLJoystickHandler_API12 extends SDLJoystickHandler {
} }
mJoysticks.add(joystick); mJoysticks.add(joystick);
SDLActivity.nativeAddJoystick(joystick.device_id, joystick.name, 0, -1, joystick.axes.size(), 0, 0);
} }
} }
} }
@Override /* Check removed devices */
public int getNumJoysticks() { ArrayList<Integer> removedDevices = new ArrayList<Integer>();
return mJoysticks.size();
}
@Override
public String getJoystickName(int joy) {
return mJoysticks.get(joy).name;
}
@Override
public int getJoystickAxes(int joy) {
return mJoysticks.get(joy).axes.size();
}
@Override
public int getJoyId(int devId) {
for(int i=0; i < mJoysticks.size(); i++) { for(int i=0; i < mJoysticks.size(); i++) {
if (mJoysticks.get(i).id == devId) { int device_id = mJoysticks.get(i).device_id;
return i; int j;
for (j=0; j < deviceIds.length; j++) {
if (device_id == deviceIds[j]) break;
}
if (j == deviceIds.length) {
removedDevices.add(device_id);
} }
} }
return -1;
for(int i=0; i < removedDevices.size(); i++) {
int device_id = removedDevices.get(i);
SDLActivity.nativeRemoveJoystick(device_id);
for (int j=0; j < mJoysticks.size(); j++) {
if (mJoysticks.get(j).device_id == device_id) {
mJoysticks.remove(j);
break;
}
}
}
}
protected SDLJoystick getJoystick(int device_id) {
for(int i=0; i < mJoysticks.size(); i++) {
if (mJoysticks.get(i).device_id == device_id) {
return mJoysticks.get(i);
}
}
return null;
} }
@Override @Override
@ -1010,14 +1000,13 @@ class SDLJoystickHandler_API12 extends SDLJoystickHandler {
int action = event.getActionMasked(); int action = event.getActionMasked();
switch(action) { switch(action) {
case MotionEvent.ACTION_MOVE: case MotionEvent.ACTION_MOVE:
int id = getJoyId( event.getDeviceId() ); SDLJoystick joystick = getJoystick(event.getDeviceId());
if ( id != -1 ) { if ( joystick != null ) {
SDLJoystick joystick = mJoysticks.get(id);
for (int i = 0; i < joystick.axes.size(); i++) { for (int i = 0; i < joystick.axes.size(); i++) {
InputDevice.MotionRange range = joystick.axes.get(i); InputDevice.MotionRange range = joystick.axes.get(i);
/* Normalize the value to -1...1 */ /* Normalize the value to -1...1 */
float value = ( event.getAxisValue( range.getAxis(), actionPointerIndex) - range.getMin() ) / range.getRange() * 2.0f - 1.0f; float value = ( event.getAxisValue( range.getAxis(), actionPointerIndex) - range.getMin() ) / range.getRange() * 2.0f - 1.0f;
SDLActivity.onNativeJoy(id, i, value ); SDLActivity.onNativeJoy(joystick.device_id, i, value );
} }
} }
break; break;

97
src/core/android/SDL_android.c
View File

@ -34,7 +34,7 @@
#include "../../video/android/SDL_androidtouch.h" #include "../../video/android/SDL_androidtouch.h"
#include "../../video/android/SDL_androidvideo.h" #include "../../video/android/SDL_androidvideo.h"
#include "../../video/android/SDL_androidwindow.h" #include "../../video/android/SDL_androidwindow.h"
#include "../../joystick/android/SDL_sysjoystick.h" #include "../../joystick/android/SDL_sysjoystick_c.h"
#include <android/log.h> #include <android/log.h>
#include <pthread.h> #include <pthread.h>
@ -75,6 +75,7 @@ static jmethodID midAudioInit;
static jmethodID midAudioWriteShortBuffer; static jmethodID midAudioWriteShortBuffer;
static jmethodID midAudioWriteByteBuffer; static jmethodID midAudioWriteByteBuffer;
static jmethodID midAudioQuit; static jmethodID midAudioQuit;
static jmethodID midPollInputDevices;
/* Accelerometer data storage */ /* Accelerometer data storage */
static float fLastAccelerometer[3]; static float fLastAccelerometer[3];
@ -127,11 +128,13 @@ void SDL_Android_Init(JNIEnv* mEnv, jclass cls)
"audioWriteByteBuffer", "([B)V"); "audioWriteByteBuffer", "([B)V");
midAudioQuit = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass, midAudioQuit = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass,
"audioQuit", "()V"); "audioQuit", "()V");
midPollInputDevices = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass,
"pollInputDevices", "()V");
bHasNewData = false; bHasNewData = false;
if(!midGetNativeSurface || !midFlipBuffers || !midAudioInit || if(!midGetNativeSurface || !midFlipBuffers || !midAudioInit ||
!midAudioWriteShortBuffer || !midAudioWriteByteBuffer || !midAudioQuit) { !midAudioWriteShortBuffer || !midAudioWriteByteBuffer || !midAudioQuit || !midPollInputDevices) {
__android_log_print(ANDROID_LOG_WARN, "SDL", "SDL: Couldn't locate Java callbacks, check that they're named and typed correctly"); __android_log_print(ANDROID_LOG_WARN, "SDL", "SDL: Couldn't locate Java callbacks, check that they're named and typed correctly");
} }
__android_log_print(ANDROID_LOG_INFO, "SDL", "SDL_Android_Init() finished!"); __android_log_print(ANDROID_LOG_INFO, "SDL", "SDL_Android_Init() finished!");
@ -148,25 +151,47 @@ void Java_org_libsdl_app_SDLActivity_onNativeResize(
// Paddown // Paddown
int Java_org_libsdl_app_SDLActivity_onNativePadDown( int Java_org_libsdl_app_SDLActivity_onNativePadDown(
JNIEnv* env, jclass jcls, JNIEnv* env, jclass jcls,
jint padId, jint keycode) jint device_id, jint keycode)
{ {
return Android_OnPadDown(padId, keycode); return Android_OnPadDown(device_id, keycode);
} }
// Padup // Padup
int Java_org_libsdl_app_SDLActivity_onNativePadUp( int Java_org_libsdl_app_SDLActivity_onNativePadUp(
JNIEnv* env, jclass jcls, JNIEnv* env, jclass jcls,
jint padId, jint keycode) jint device_id, jint keycode)
{ {
return Android_OnPadUp(padId, keycode); return Android_OnPadUp(device_id, keycode);
} }
/* Joy */ /* Joy */
void Java_org_libsdl_app_SDLActivity_onNativeJoy( void Java_org_libsdl_app_SDLActivity_onNativeJoy(
JNIEnv* env, jclass jcls, JNIEnv* env, jclass jcls,
jint joyId, jint axis, jfloat value) jint device_id, jint axis, jfloat value)
{ {
Android_OnJoy(joyId, axis, value); Android_OnJoy(device_id, axis, value);
}
int Java_org_libsdl_app_SDLActivity_nativeAddJoystick(
JNIEnv* env, jclass jcls,
jint device_id, jstring device_name, jint is_accelerometer,
jint nbuttons, jint naxes, jint nhats, jint nballs)
{
int retval;
const char *name = (*env)->GetStringUTFChars(env, device_name, NULL);
retval = Android_AddJoystick(device_id, name, (SDL_bool) is_accelerometer, nbuttons, naxes, nhats, nballs);
(*env)->ReleaseStringUTFChars(env, device_name, name);
return retval;
}
int Java_org_libsdl_app_SDLActivity_nativeRemoveJoystick(
JNIEnv* env, jclass jcls, jint device_id)
{
return Android_RemoveJoystick(device_id);
} }
@ -1247,62 +1272,12 @@ int Android_JNI_GetTouchDeviceIds(int **ids) {
return number; return number;
} }
/* return the total number of plugged in joysticks */ void Android_JNI_PollInputDevices()
int Android_JNI_GetNumJoysticks()
{ {
JNIEnv* env = Android_JNI_GetEnv(); JNIEnv *env = Android_JNI_GetEnv();
if (!env) { (*env)->CallStaticVoidMethod(env, mActivityClass, midPollInputDevices);
return -1;
}
jmethodID mid = (*env)->GetStaticMethodID(env, mActivityClass, "getNumJoysticks", "()I");
if (!mid) {
return -1;
}
return (int)(*env)->CallStaticIntMethod(env, mActivityClass, mid);
} }
/* Return the name of joystick number "i" */
char* Android_JNI_GetJoystickName(int i)
{
JNIEnv* env = Android_JNI_GetEnv();
if (!env) {
return SDL_strdup("");
}
jmethodID mid = (*env)->GetStaticMethodID(env, mActivityClass, "getJoystickName", "(I)Ljava/lang/String;");
if (!mid) {
return SDL_strdup("");
}
jstring string = (jstring)((*env)->CallStaticObjectMethod(env, mActivityClass, mid, i));
const char* utf = (*env)->GetStringUTFChars(env, string, 0);
if (!utf) {
return SDL_strdup("");
}
char* text = SDL_strdup(utf);
(*env)->ReleaseStringUTFChars(env, string, utf);
return text;
}
/* return the number of axes in the given joystick */
int Android_JNI_GetJoystickAxes(int joy)
{
JNIEnv* env = Android_JNI_GetEnv();
if (!env) {
return -1;
}
jmethodID mid = (*env)->GetStaticMethodID(env, mActivityClass, "getJoystickAxes", "(I)I");
if (!mid) {
return -1;
}
return (int)(*env)->CallIntMethod(env, mActivityClass, mid, joy);
}
/* sends message to be handled on the UI event dispatch thread */ /* sends message to be handled on the UI event dispatch thread */
int Android_JNI_SendMessage(int command, int param) int Android_JNI_SendMessage(int command, int param)
{ {

5
src/core/android/SDL_android.h
View File

@ -66,9 +66,8 @@ SDL_bool Android_JNI_HasClipboardText();
int Android_JNI_GetPowerInfo(int* plugged, int* charged, int* battery, int* seconds, int* percent); int Android_JNI_GetPowerInfo(int* plugged, int* charged, int* battery, int* seconds, int* percent);
/* Joystick support */ /* Joystick support */
int Android_JNI_GetNumJoysticks(); void Android_JNI_PollInputDevices();
char* Android_JNI_GetJoystickName(int i);
int Android_JNI_GetJoystickAxes(int joy);
/* Touch support */ /* Touch support */
int Android_JNI_GetTouchDeviceIds(int **ids); int Android_JNI_GetTouchDeviceIds(int **ids);

421
src/joystick/android/SDL_sysjoystick.c
View File

@ -23,15 +23,18 @@
#ifdef SDL_JOYSTICK_ANDROID #ifdef SDL_JOYSTICK_ANDROID
/* This is the system specific header for the SDL joystick API */
#include <stdio.h> /* For the definition of NULL */ #include <stdio.h> /* For the definition of NULL */
#include "SDL_error.h" #include "SDL_error.h"
#include "SDL_events.h" #include "SDL_events.h"
#if !SDL_EVENTS_DISABLED
#include "../../events/SDL_events_c.h"
#endif
#include "SDL_joystick.h" #include "SDL_joystick.h"
#include "SDL_hints.h" #include "SDL_hints.h"
#include "SDL_assert.h" #include "SDL_assert.h"
#include "../SDL_sysjoystick.h" #include "SDL_sysjoystick_c.h"
#include "../SDL_joystick_c.h" #include "../SDL_joystick_c.h"
#include "../../core/android/SDL_android.h" #include "../../core/android/SDL_android.h"
@ -57,14 +60,17 @@
#define AKEYCODE_BUTTON_16 203 #define AKEYCODE_BUTTON_16 203
#endif #endif
#define ANDROID_ACCELEROMETER_INDEX (SYS_numjoysticks - 1)
#define ANDROID_ACCELEROMETER_NAME "Android Accelerometer" #define ANDROID_ACCELEROMETER_NAME "Android Accelerometer"
#define ANDROID_ACCELEROMETER_DEVICE_ID INT_MIN
#define ANDROID_MAX_NBUTTONS 36 #define ANDROID_MAX_NBUTTONS 36
static SDL_Joystick **SYS_Joysticks; static SDL_joylist_item * JoystickByDeviceId(int device_id);
static char **SYS_JoystickNames;
static int SYS_numjoysticks; static SDL_joylist_item *SDL_joylist = NULL;
static SDL_bool SYS_accelAsJoy; static SDL_joylist_item *SDL_joylist_tail = NULL;
static int numjoysticks = 0;
static int instance_counter = 0;
/* Function to convert Android keyCodes into SDL ones. /* Function to convert Android keyCodes into SDL ones.
* This code manipulation is done to get a sequential list of codes. * This code manipulation is done to get a sequential list of codes.
@ -139,78 +145,265 @@ keycode_to_SDL(int keycode)
} }
/* Function to scan the system for joysticks. int
* This function should set SDL_numjoysticks to the number of available Android_OnPadDown(int device_id, int keycode)
* joysticks. Joystick 0 should be the system default joystick. {
* It should return 0, or -1 on an unrecoverable fatal error. SDL_joylist_item *item;
*/ int button = keycode_to_SDL(keycode);
if (button >= 0) {
item = JoystickByDeviceId(device_id);
if (item && item->joystick) {
SDL_PrivateJoystickButton(item->joystick, button , SDL_PRESSED);
}
return 0;
}
return -1;
}
int
Android_OnPadUp(int device_id, int keycode)
{
SDL_joylist_item *item;
int button = keycode_to_SDL(keycode);
if (button >= 0) {
item = JoystickByDeviceId(device_id);
if (item && item->joystick) {
SDL_PrivateJoystickButton(item->joystick, button, SDL_RELEASED);
}
return 0;
}
return -1;
}
int
Android_OnJoy(int device_id, int axis, float value)
{
/* Android gives joy info normalized as [-1.0, 1.0] or [0.0, 1.0] */
SDL_joylist_item *item = JoystickByDeviceId(device_id);
if (item && item->joystick) {
SDL_PrivateJoystickAxis(item->joystick, axis, (Sint16) (32767.*value) );
}
return 0;
}
int
Android_AddJoystick(int device_id, const char *name, SDL_bool is_accelerometer, int nbuttons, int naxes, int nhats, int nballs)
{
SDL_JoystickGUID guid;
SDL_joylist_item *item;
#if !SDL_EVENTS_DISABLED
SDL_Event event;
#endif
if(JoystickByDeviceId(device_id) != NULL || name == NULL) {
return -1;
}
/* the GUID is just the first 16 chars of the name for now */
SDL_zero( guid );
SDL_memcpy( &guid, name, SDL_min( sizeof(guid), SDL_strlen( name ) ) );
item = (SDL_joylist_item *) SDL_malloc(sizeof (SDL_joylist_item));
if (item == NULL) {
return -1;
}
SDL_zerop(item);
item->guid = guid;
item->device_id = device_id;
item->name = SDL_strdup(name);
if ( item->name == NULL ) {
SDL_free(item);
return -1;
}
item->is_accelerometer = is_accelerometer;
if (nbuttons > -1) {
item->nbuttons = nbuttons;
}
else {
item->nbuttons = ANDROID_MAX_NBUTTONS;
}
item->naxes = naxes;
item->nhats = nhats;
item->nballs = nballs;
item->device_instance = instance_counter++;
if (SDL_joylist_tail == NULL) {
SDL_joylist = SDL_joylist_tail = item;
} else {
SDL_joylist_tail->next = item;
SDL_joylist_tail = item;
}
/* Need to increment the joystick count before we post the event */
++numjoysticks;
#if !SDL_EVENTS_DISABLED
event.type = SDL_JOYDEVICEADDED;
if (SDL_GetEventState(event.type) == SDL_ENABLE) {
event.jdevice.which = (numjoysticks - 1);
if ( (SDL_EventOK == NULL) ||
(*SDL_EventOK) (SDL_EventOKParam, &event) ) {
SDL_PushEvent(&event);
}
}
#endif /* !SDL_EVENTS_DISABLED */
SDL_Log("Added joystick %s with device_id %d", name, device_id);
return numjoysticks;
}
int
Android_RemoveJoystick(int device_id)
{
SDL_joylist_item *item = SDL_joylist;
SDL_joylist_item *prev = NULL;
#if !SDL_EVENTS_DISABLED
SDL_Event event;
#endif
/* Don't call JoystickByDeviceId here or there'll be an infinite loop! */
while (item != NULL) {
if (item->device_id == device_id) {
break;
}
prev = item;
item = item->next;
}
if (item == NULL) {
return -1;
}
const int retval = item->device_instance;
if (prev != NULL) {
prev->next = item->next;
} else {
SDL_assert(SDL_joylist == item);
SDL_joylist = item->next;
}
if (item == SDL_joylist_tail) {
SDL_joylist_tail = prev;
}
/* Need to decrement the joystick count before we post the event */
--numjoysticks;
#if !SDL_EVENTS_DISABLED
event.type = SDL_JOYDEVICEREMOVED;
if (SDL_GetEventState(event.type) == SDL_ENABLE) {
event.jdevice.which = item->device_instance;
if ( (SDL_EventOK == NULL) ||
(*SDL_EventOK) (SDL_EventOKParam, &event) ) {
SDL_PushEvent(&event);
}
}
#endif /* !SDL_EVENTS_DISABLED */
SDL_Log("Removed joystick with device_id %d", device_id);
SDL_free(item->name);
SDL_free(item);
return retval;
}
int int
SDL_SYS_JoystickInit(void) SDL_SYS_JoystickInit(void)
{ {
int i = 0;
const char *env; const char *env;
SDL_SYS_JoystickDetect();
env = SDL_GetHint(SDL_HINT_ACCEL_AS_JOY); env = SDL_GetHint(SDL_HINT_ACCEL_AS_JOY);
if (env && !SDL_atoi(env)) if (!env || SDL_atoi(env)) {
SYS_accelAsJoy = SDL_FALSE; /* Default behavior, accelerometer as joystick */
else Android_AddJoystick(ANDROID_ACCELEROMETER_DEVICE_ID, ANDROID_ACCELEROMETER_NAME, SDL_TRUE, 0, 3, 0, 0);
SYS_accelAsJoy = SDL_TRUE; /* Default behavior */
SYS_numjoysticks = Android_JNI_GetNumJoysticks();
if (SYS_accelAsJoy) {
SYS_numjoysticks++;
}
SYS_Joysticks = (SDL_Joystick **)SDL_calloc(1, SYS_numjoysticks*sizeof(SDL_Joystick *));
if (SYS_Joysticks == NULL)
{
return SDL_OutOfMemory();
}
SYS_JoystickNames = (char **)SDL_calloc(1, SYS_numjoysticks*sizeof(char *));
if (SYS_JoystickNames == NULL)
{
SDL_free(SYS_Joysticks);
SYS_Joysticks = NULL;
return SDL_OutOfMemory();
} }
for (i = 0; i < SYS_numjoysticks; i++) return (numjoysticks);
{
if ( SYS_accelAsJoy && i == ANDROID_ACCELEROMETER_INDEX ) {
SYS_JoystickNames[i] = ANDROID_ACCELEROMETER_NAME;
} else {
SYS_JoystickNames[i] = Android_JNI_GetJoystickName(i);
}
}
return (SYS_numjoysticks);
} }
int SDL_SYS_NumJoysticks() int SDL_SYS_NumJoysticks()
{ {
return SYS_numjoysticks; return numjoysticks;
} }
void SDL_SYS_JoystickDetect() void SDL_SYS_JoystickDetect()
{ {
/* Support for device connect/disconnect is API >= 16 only,
* so we have to poll ever few seconds.
* Ref: http://developer.android.com/reference/android/hardware/input/InputManager.InputDeviceListener.html
*/
Android_JNI_PollInputDevices();
} }
/* TODO: Hotplugging support */
SDL_bool SDL_SYS_JoystickNeedsPolling() SDL_bool SDL_SYS_JoystickNeedsPolling()
{ {
return SDL_FALSE; return SDL_TRUE;
}
static SDL_joylist_item *
JoystickByDevIndex(int device_index)
{
SDL_joylist_item *item = SDL_joylist;
if ((device_index < 0) || (device_index >= numjoysticks)) {
return NULL;
}
while (device_index > 0) {
SDL_assert(item != NULL);
device_index--;
item = item->next;
}
return item;
}
static SDL_joylist_item *
JoystickByDeviceId(int device_id)
{
SDL_joylist_item *item = SDL_joylist;
while (item != NULL) {
if (item->device_id == device_id) {
return item;
}
item = item->next;
}
/* Joystick not found, try adding it */
SDL_SYS_JoystickDetect();
while (item != NULL) {
if (item->device_id == device_id) {
return item;
}
item = item->next;
}
return NULL;
} }
/* Function to get the device-dependent name of a joystick */ /* Function to get the device-dependent name of a joystick */
const char * const char *
SDL_SYS_JoystickNameForDeviceIndex(int device_index) SDL_SYS_JoystickNameForDeviceIndex(int device_index)
{ {
return SYS_JoystickNames[device_index]; return JoystickByDevIndex(device_index)->name;
} }
/* Function to perform the mapping from device index to the instance id for this index */ /* Function to perform the mapping from device index to the instance id for this index */
SDL_JoystickID SDL_SYS_GetInstanceIdOfDeviceIndex(int device_index) SDL_JoystickID SDL_SYS_GetInstanceIdOfDeviceIndex(int device_index)
{ {
return device_index; return JoystickByDevIndex(device_index)->device_instance;
} }
/* Function to open a joystick for use. /* Function to open a joystick for use.
@ -221,64 +414,65 @@ SDL_JoystickID SDL_SYS_GetInstanceIdOfDeviceIndex(int device_index)
int int
SDL_SYS_JoystickOpen(SDL_Joystick * joystick, int device_index) SDL_SYS_JoystickOpen(SDL_Joystick * joystick, int device_index)
{ {
if (device_index < SYS_numjoysticks) { SDL_joylist_item *item = JoystickByDevIndex(device_index);
joystick->nhats = 0; char *fname = NULL;
joystick->nballs = 0;
if (SYS_accelAsJoy && device_index == ANDROID_ACCELEROMETER_INDEX) { if (item == NULL ) {
joystick->nbuttons = 0; return SDL_SetError("No such device");
joystick->naxes = 3;
} else {
/* FIXME: Get the real number of buttons in the device? */
joystick->nbuttons = ANDROID_MAX_NBUTTONS;
joystick->naxes = Android_JNI_GetJoystickAxes(device_index);
} }
SYS_Joysticks[device_index] = joystick; if (item->joystick != NULL) {
return 0; return SDL_SetError("Joystick already opened");
} else {
return SDL_SetError("No joystick available with that index");
} }
joystick->instance_id = item->device_instance;
joystick->hwdata = (struct joystick_hwdata *) item;
item->joystick = joystick;
joystick->nhats = item->nhats;
joystick->nballs = item->nballs;
joystick->nbuttons = item->nbuttons;
joystick->naxes = item->naxes;
return (0);
} }
/* Function to determine is this joystick is attached to the system right now */ /* Function to determine is this joystick is attached to the system right now */
SDL_bool SDL_SYS_JoystickAttached(SDL_Joystick *joystick) SDL_bool SDL_SYS_JoystickAttached(SDL_Joystick *joystick)
{ {
return SDL_TRUE; return !joystick->closed && (joystick->hwdata != NULL);
} }
/* Function to update the state of a joystick - called as a device poll.
* This function shouldn't update the joystick structure directly,
* but instead should call SDL_PrivateJoystick*() to deliver events
* and update joystick device state.
*/
void void
SDL_SYS_JoystickUpdate(SDL_Joystick * joystick) SDL_SYS_JoystickUpdate(SDL_Joystick * joystick)
{ {
int i; int i;
Sint16 value; Sint16 value;
float values[3]; float values[3];
SDL_joylist_item *item = SDL_joylist;
if (SYS_accelAsJoy && Android_JNI_GetAccelerometerValues(values) && while (item) {
joystick->instance_id == ANDROID_ACCELEROMETER_INDEX) { if (item->is_accelerometer) {
if (item->joystick) {
Android_JNI_GetAccelerometerValues(values);
for ( i = 0; i < 3; i++ ) { for ( i = 0; i < 3; i++ ) {
value = (Sint16)(values[i] * 32767.0f); value = (Sint16)(values[i] * 32767.0f);
SDL_PrivateJoystickAxis(joystick, i, value); SDL_PrivateJoystickAxis(item->joystick, i, value);
} }
} }
break;
}
item = item->next;
}
} }
/* Function to close a joystick after use */ /* Function to close a joystick after use */
void void
SDL_SYS_JoystickClose(SDL_Joystick * joystick) SDL_SYS_JoystickClose(SDL_Joystick * joystick)
{ {
int device_index; if (joystick->hwdata) {
((SDL_joylist_item*)joystick->hwdata)->joystick = NULL;
for (device_index = 0; device_index < SYS_numjoysticks; device_index++) { joystick->hwdata = NULL;
if ( SYS_Joysticks[device_index] == joystick ) {
SYS_Joysticks[device_index] = NULL;
} }
}
joystick->closed = 1; joystick->closed = 1;
} }
@ -286,70 +480,29 @@ SDL_SYS_JoystickClose(SDL_Joystick * joystick)
void void
SDL_SYS_JoystickQuit(void) SDL_SYS_JoystickQuit(void)
{ {
SDL_free(SYS_JoystickNames); SDL_joylist_item *item = NULL;
SDL_free(SYS_Joysticks); SDL_joylist_item *next = NULL;
SYS_JoystickNames = NULL;
SYS_Joysticks = NULL; for (item = SDL_joylist; item; item = next) {
next = item->next;
SDL_free(item->name);
SDL_free(item);
}
SDL_joylist = SDL_joylist_tail = NULL;
numjoysticks = 0;
instance_counter = 0;
} }
SDL_JoystickGUID SDL_SYS_JoystickGetDeviceGUID( int device_index ) SDL_JoystickGUID SDL_SYS_JoystickGetDeviceGUID( int device_index )
{ {
SDL_JoystickGUID guid; return JoystickByDevIndex(device_index)->guid;
/* the GUID is just the first 16 chars of the name for now */
const char *name = SDL_SYS_JoystickNameForDeviceIndex( device_index );
SDL_zero( guid );
SDL_memcpy( &guid, name, SDL_min( sizeof(guid), SDL_strlen( name ) ) );
return guid;
} }
SDL_JoystickGUID SDL_SYS_JoystickGetGUID(SDL_Joystick * joystick) SDL_JoystickGUID SDL_SYS_JoystickGetGUID(SDL_Joystick * joystick)
{ {
SDL_JoystickGUID guid; return ((SDL_joylist_item*)joystick->hwdata)->guid;
/* the GUID is just the first 16 chars of the name for now */
const char *name = joystick->name;
SDL_zero( guid );
SDL_memcpy( &guid, name, SDL_min( sizeof(guid), SDL_strlen( name ) ) );
return guid;
}
int
Android_OnPadDown(int padId, int keycode)
{
int button = keycode_to_SDL(keycode);
if (button >= 0) {
if (SYS_Joysticks[padId]) {
SDL_PrivateJoystickButton(SYS_Joysticks[padId], button , SDL_PRESSED);
}
return 0;
}
return -1;
}
int
Android_OnPadUp(int padId, int keycode)
{
int button = keycode_to_SDL(keycode);
if (button >= 0) {
if (SYS_Joysticks[padId]) {
SDL_PrivateJoystickButton(SYS_Joysticks[padId], button, SDL_RELEASED);
}
return 0;
}
return -1;
}
int
Android_OnJoy(int joyId, int axis, float value)
{
/* Android gives joy info normalized as [-1.0, 1.0] or [0.0, 1.0] */
/* TODO: Are the reported values right? */
if (SYS_Joysticks[joyId]) {
SDL_PrivateJoystickAxis(SYS_Joysticks[joyId], axis, (Sint16) (32767.*value) );
}
return 0;
} }
#endif /* SDL_JOYSTICK_ANDROID */ #endif /* SDL_JOYSTICK_ANDROID */

29
src/joystick/android/SDL_sysjoystick.h → src/joystick/android/SDL_sysjoystick_c.h
View File

@ -21,8 +21,31 @@
#include "SDL_config.h" #include "SDL_config.h"
extern int Android_OnPadDown(int padId, int keycode); #ifdef SDL_JOYSTICK_ANDROID
extern int Android_OnPadUp(int padId, int keycode); #include "../SDL_sysjoystick.h"
extern int Android_OnJoy(int joyId, int axisnum, float value);
extern int Android_OnPadDown(int device_id, int keycode);
extern int Android_OnPadUp(int device_id, int keycode);
extern int Android_OnJoy(int device_id, int axisnum, float value);
extern int Android_AddJoystick(int device_id, const char *name, SDL_bool is_accelerometer, int nbuttons, int naxes, int nhats, int nballs);
extern int Android_RemoveJoystick(int device_id);
/* A linked list of available joysticks */
typedef struct SDL_joylist_item
{
int device_instance;
int device_id; /* Android's device id */
char *name; /* "SideWinder 3D Pro" or whatever */
SDL_JoystickGUID guid;
SDL_bool is_accelerometer;
SDL_Joystick *joystick;
int nbuttons, naxes, nhats, nballs;
struct SDL_joylist_item *next;
} SDL_joylist_item;
typedef SDL_joylist_item joystick_hwdata;
#endif /* SDL_JOYSTICK_ANDROID */
/* vi: set ts=4 sw=4 expandtab: */ /* vi: set ts=4 sw=4 expandtab: */