1 files changed, 128 insertions, 0 deletions
diff --git a/plugins/linux/src/native/net_java_games_input_LinuxJoystickDevice.c b/plugins/linux/src/native/net_java_games_input_LinuxJoystickDevice.c
new file mode 100644
index 0000000..f82023b
--- /dev/null
+++ b/plugins/linux/src/native/net_java_games_input_LinuxJoystickDevice.c
@@ -0,0 +1,128 @@
+/*
+ * %W% %E%
+ *
+ * Copyright 2002 Sun Microsystems, Inc. All rights reserved.
+ * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
+ */
+/*****************************************************************************
+* Copyright (c) 2003 Sun Microsystems, Inc.  All Rights Reserved.
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*
+* - Redistribution of source code must retain the above copyright notice,
+*   this list of conditions and the following disclaimer.
+*
+* - Redistribution in binary form must reproduce the above copyright notice,
+*   this list of conditions and the following disclaimer in the documentation
+*   and/or other materails provided with the distribution.
+*
+* Neither the name Sun Microsystems, Inc. or the names of the contributors
+* may be used to endorse or promote products derived from this software
+* without specific prior written permission.
+*
+* This software is provided "AS IS," without a warranty of any kind.
+* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
+* ANY IMPLIED WARRANT OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
+* NON-INFRINGEMEN, ARE HEREBY EXCLUDED.  SUN MICROSYSTEMS, INC. ("SUN") AND
+* ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS
+* A RESULT OF USING, MODIFYING OR DESTRIBUTING THIS SOFTWARE OR ITS 
+* DERIVATIVES.  IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST
+* REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL,
+* INCIDENTAL OR PUNITIVE DAMAGES.  HOWEVER CAUSED AND REGARDLESS OF THE THEORY
+* OF LIABILITY, ARISING OUT OF THE USE OF OUR INABILITY TO USE THIS SOFTWARE,
+* EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+*
+* You acknowledge that this software is not designed or intended for us in
+* the design, construction, operation or maintenance of any nuclear facility
+*
+*****************************************************************************/
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/joystick.h>
+#include "util.h"
+#include "net_java_games_input_LinuxJoystickDevice.h"
+
+JNIEXPORT jlong JNICALL Java_net_java_games_input_LinuxJoystickDevice_nOpen(JNIEnv *env, jclass unused, jstring path) {
+	const char *path_str = (*env)->GetStringUTFChars(env, path, NULL);
+	if (path_str == NULL)
+		return -1;
+	int fd = open(path_str, O_RDONLY | O_NONBLOCK);
+	if (fd == -1)
+		throwIOException(env, "Failed to open device %s (%d)\n", path_str, errno);
+	(*env)->ReleaseStringUTFChars(env, path, path_str);
+	return fd;
+}
+
+JNIEXPORT void JNICALL Java_net_java_games_input_LinuxJoystickDevice_nClose(JNIEnv *env, jclass unused, jlong fd_address) {
+	int fd = (int)fd_address;
+	int result = close(fd);
+	if (result == -1)
+		throwIOException(env, "Failed to close device (%d)\n", errno);
+}
+
+JNIEXPORT jstring JNICALL Java_net_java_games_input_LinuxJoystickDevice_nGetName(JNIEnv *env, jclass unused, jlong fd_address) {
+#define BUFFER_SIZE 1024
+	int fd = (int)fd_address;
+	char device_name[BUFFER_SIZE];
+	
+	if (ioctl(fd, JSIOCGNAME(BUFFER_SIZE), device_name) == -1) {
+		throwIOException(env, "Failed to get device name (%d)\n", errno);
+		return NULL;
+	}
+	jstring jstr = (*env)->NewStringUTF(env, device_name);
+	return jstr;
+}
+
+JNIEXPORT jint JNICALL Java_net_java_games_input_LinuxJoystickDevice_nGetVersion(JNIEnv *env, jclass unused, jlong fd_address) {
+	int fd = (int)fd_address;
+	__u32 version;
+	if (ioctl(fd, JSIOCGVERSION, &version) == -1) {
+		throwIOException(env, "Failed to get device version (%d)\n", errno);
+		return -1;
+	}
+	return version;
+}
+
+JNIEXPORT jint JNICALL Java_net_java_games_input_LinuxJoystickDevice_nGetNumButtons(JNIEnv *env, jclass unused, jlong fd_address) {
+	int fd = (int)fd_address;
+	__u8 num_buttons;
+	if (ioctl(fd, JSIOCGBUTTONS, &num_buttons) == -1) {
+		throwIOException(env, "Failed to get number of buttons (%d)\n", errno);
+		return -1;
+	}
+	return num_buttons;
+}
+
+JNIEXPORT jint JNICALL Java_net_java_games_input_LinuxJoystickDevice_nGetNumAxes(JNIEnv *env, jclass unused, jlong fd_address) {
+	int fd = (int)fd_address;
+	__u8 num_axes;
+	if (ioctl(fd, JSIOCGAXES, &num_axes) == -1) {
+		throwIOException(env, "Failed to get number of buttons (%d)\n", errno);
+		return -1;
+	}
+	return num_axes;
+}
+
+JNIEXPORT jboolean JNICALL Java_net_java_games_input_LinuxJoystickDevice_nGetNextEvent(JNIEnv *env, jclass unused, jlong fd_address, jobject event_return) {
+	int fd = (int)fd_address;
+	jclass event_class = (*env)->GetObjectClass(env, event_return);
+	if (event_class == NULL)
+		return JNI_FALSE;
+	jmethodID event_set = (*env)->GetMethodID(env, event_class, "set", "(JIII)V");
+	if (event_set == NULL)
+		return JNI_FALSE;
+	struct js_event event;
+	if (read(fd, &event, sizeof(event)) == -1) {
+		if (errno == EAGAIN)
+			return JNI_FALSE;
+		throwIOException(env, "Failed to read next device event (%d)\n", errno);
+		return JNI_FALSE;
+	}
+	(*env)->CallVoidMethod(env, event_return, event_set, (jlong)event.time, (jint)event.value, (jint)event.type, (jint)event.number);
+	return JNI_TRUE;
+}