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[Android] Hotplugging support for joysticks

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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
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WhatsNew.txt
+1
View File
@@ -16,6 +16,7 @@ Android:
* Joystick support (minimum SDK version required to build SDL is now 12,
the required runtime version remains at 10, but on such devices joystick
support won't be available).
* Hotplugging support for joysticks
Linux:
* Fixed fullscreen and focused behavior when receiving NotifyGrab events
android-project/src/org/libsdl/app/SDLActivity.java
+83 -94
View File
@@ -256,9 +256,9 @@ public class SDLActivity extends Activity {
public static native void nativePause();
public static native void nativeResume();
public static native void onNativeResize(int x, int y, int format);
public static native int onNativePadDown(int padId, int keycode);
public static native int onNativePadUp(int padId, int keycode);
public static native void onNativeJoy(int joyId, int axis,
public static native int onNativePadDown(int device_id, int keycode);
public static native int onNativePadUp(int device_id, int keycode);
public static native void onNativeJoy(int device_id, int axis,
float value);
public static native void onNativeKeyDown(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 onNativeSurfaceDestroyed();
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() {
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
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) {
return mJoystickHandler.handleMotionEvent(event);
}
/**
* @param devId the device id to get opened joystick id for.
* @return joystick id for device id or -1 if there is none.
*/
public static int getJoyId(int devId) {
return mJoystickHandler.getJoyId(devId);
public static void pollInputDevices() {
if (SDLActivity.mSDLThread != null) {
mJoystickHandler.pollInputDevices();
}
}
}
/**
@@ -660,16 +651,13 @@ class SDLSurface extends SurfaceView implements SurfaceHolder.Callback,
if ( (event.getSource() & 0x00000401) != 0 || /* API 12: SOURCE_GAMEPAD */
(event.getSource() & InputDevice.SOURCE_DPAD) != 0 ) {
int id = SDLActivity.getJoyId( event.getDeviceId() );
if (id != -1) {
if (event.getAction() == KeyEvent.ACTION_DOWN) {
if (SDLActivity.onNativePadDown(id, keyCode) == 0) {
return true;
}
} else if (event.getAction() == KeyEvent.ACTION_UP) {
if (SDLActivity.onNativePadUp(id, keyCode) == 0) {
return true;
}
if (event.getAction() == KeyEvent.ACTION_DOWN) {
if (SDLActivity.onNativePadDown(event.getDeviceId(), keyCode) == 0) {
return true;
}
} else if (event.getAction() == KeyEvent.ACTION_UP) {
if (SDLActivity.onNativePadUp(event.getDeviceId(), keyCode) == 0) {
return true;
}
}
}
@@ -916,36 +904,20 @@ class SDLInputConnection extends BaseInputConnection {
/* A null joystick handler for API level < 12 devices (the accelerometer is handled separately) */
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) {
return false;
}
public void pollInputDevices() {
}
}
/* Actual joystick functionality available for API >= 12 devices */
class SDLJoystickHandler_API12 extends SDLJoystickHandler {
class SDLJoystick {
public int id;
public int device_id;
public String name;
public ArrayList<InputDevice.MotionRange> axes;
}
@@ -953,54 +925,72 @@ class SDLJoystickHandler_API12 extends SDLJoystickHandler {
private ArrayList<SDLJoystick> mJoysticks;
public SDLJoystickHandler_API12() {
/* FIXME: Move the joystick initialization code to its own function and support hotplugging of devices */
mJoysticks = new ArrayList<SDLJoystick>();
}
@Override
public void pollInputDevices() {
int[] deviceIds = InputDevice.getDeviceIds();
for(int i=0; i<deviceIds.length; i++) {
SDLJoystick joystick = new SDLJoystick();
InputDevice joystickDevice = InputDevice.getDevice(deviceIds[i]);
if( (joystickDevice.getSources() & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) {
joystick.id = deviceIds[i];
joystick.name = joystickDevice.getName();
joystick.axes = new ArrayList<InputDevice.MotionRange>();
for (InputDevice.MotionRange range : joystickDevice.getMotionRanges()) {
if ( (range.getSource() & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) {
joystick.axes.add(range);
}
// It helps processing the device ids in reverse order
// For example, in the case of the XBox 360 wireless dongle,
// 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) {
joystick.device_id = deviceIds[i];
joystick.name = joystickDevice.getName();
joystick.axes = new ArrayList<InputDevice.MotionRange>();
for (InputDevice.MotionRange range : joystickDevice.getMotionRanges()) {
if ( (range.getSource() & InputDevice.SOURCE_CLASS_JOYSTICK) != 0) {
joystick.axes.add(range);
}
}
mJoysticks.add(joystick);
SDLActivity.nativeAddJoystick(joystick.device_id, joystick.name, 0, -1, joystick.axes.size(), 0, 0);
}
mJoysticks.add(joystick);
}
}
}
@Override
public int getNumJoysticks() {
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) {
/* Check removed devices */
ArrayList<Integer> removedDevices = new ArrayList<Integer>();
for(int i=0; i < mJoysticks.size(); i++) {
if (mJoysticks.get(i).id == devId) {
return i;
int device_id = mJoysticks.get(i).device_id;
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
@@ -1010,14 +1000,13 @@ class SDLJoystickHandler_API12 extends SDLJoystickHandler {
int action = event.getActionMasked();
switch(action) {
case MotionEvent.ACTION_MOVE:
int id = getJoyId( event.getDeviceId() );
if ( id != -1 ) {
SDLJoystick joystick = mJoysticks.get(id);
SDLJoystick joystick = getJoystick(event.getDeviceId());
if ( joystick != null ) {
for (int i = 0; i < joystick.axes.size(); i++) {
InputDevice.MotionRange range = joystick.axes.get(i);
/* Normalize the value to -1...1 */
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;
src/core/android/SDL_android.c
+36 -61
View File
@@ -34,7 +34,7 @@
#include "../../video/android/SDL_androidtouch.h"
#include "../../video/android/SDL_androidvideo.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 <pthread.h>
@@ -75,6 +75,7 @@ static jmethodID midAudioInit;
static jmethodID midAudioWriteShortBuffer;
static jmethodID midAudioWriteByteBuffer;
static jmethodID midAudioQuit;
static jmethodID midPollInputDevices;
/* Accelerometer data storage */
static float fLastAccelerometer[3];
@@ -127,11 +128,13 @@ void SDL_Android_Init(JNIEnv* mEnv, jclass cls)
"audioWriteByteBuffer", "([B)V");
midAudioQuit = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass,
"audioQuit", "()V");
midPollInputDevices = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass,
"pollInputDevices", "()V");
bHasNewData = false;
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_INFO, "SDL", "SDL_Android_Init() finished!");
@@ -148,25 +151,47 @@ void Java_org_libsdl_app_SDLActivity_onNativeResize(
// Paddown
int Java_org_libsdl_app_SDLActivity_onNativePadDown(
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
int Java_org_libsdl_app_SDLActivity_onNativePadUp(
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 */
void Java_org_libsdl_app_SDLActivity_onNativeJoy(
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 the total number of plugged in joysticks */
int Android_JNI_GetNumJoysticks()
void Android_JNI_PollInputDevices()
{
JNIEnv* env = Android_JNI_GetEnv();
if (!env) {
return -1;
}
jmethodID mid = (*env)->GetStaticMethodID(env, mActivityClass, "getNumJoysticks", "()I");
if (!mid) {
return -1;
}
return (int)(*env)->CallStaticIntMethod(env, mActivityClass, mid);
JNIEnv *env = Android_JNI_GetEnv();
(*env)->CallStaticVoidMethod(env, mActivityClass, midPollInputDevices);
}
/* 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 */
int Android_JNI_SendMessage(int command, int param)
{
src/core/android/SDL_android.h
+2 -3
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);
/* Joystick support */
int Android_JNI_GetNumJoysticks();
char* Android_JNI_GetJoystickName(int i);
int Android_JNI_GetJoystickAxes(int joy);
void Android_JNI_PollInputDevices();
/* Touch support */
int Android_JNI_GetTouchDeviceIds(int **ids);
src/joystick/android/SDL_sysjoystick.c
+292 -139
View File
File diff suppressed because it is too large Load Diff
src/joystick/android/SDL_sysjoystick.h → src/joystick/android/SDL_sysjoystick_c.h
+26 -3
View File
@@ -21,8 +21,31 @@
#include "SDL_config.h"
extern int Android_OnPadDown(int padId, int keycode);
extern int Android_OnPadUp(int padId, int keycode);
extern int Android_OnJoy(int joyId, int axisnum, float value);
#ifdef SDL_JOYSTICK_ANDROID
#include "../SDL_sysjoystick.h"
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: */