1 /*

     2  * Copyright (c) 1999, 2007, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 

    26 /*****************************************************************************/

    27 /*

    28 **      Native functions for interfacing Java with the native implementation

    29 **      of PlatformMidi.h's functions.

    30 */

    31 /*****************************************************************************/

    32 

    33 #define USE_ERROR

    34 #define USE_TRACE

    35 

    36 

    37 #include <jni.h>

    38 #include "SoundDefs.h"

    39 #include "PlatformMidi.h"

    40 #include "Utilities.h"

    41 #include "com_sun_media_sound_MidiOutDevice.h"

    42 

    43 

    44 // NATIVE METHODS

    45 

    46 

    47 JNIEXPORT jlong JNICALL

    48 Java_com_sun_media_sound_MidiOutDevice_nOpen(JNIEnv* e, jobject thisObj, jint index) {

    49 

    50     void* deviceHandle = NULL;

    51     INT32 err = MIDI_NOT_SUPPORTED;

    52 

    53     TRACE1("Java_com_sun_media_sound_MidiOutDevice_nOpen: index: %d\n", index);

    54 

    55 #if USE_PLATFORM_MIDI_OUT == TRUE

    56     err = MIDI_OUT_OpenDevice((INT32) index, (MidiDeviceHandle**) (&deviceHandle));

    57 #endif

    58 

    59     // if we didn't get a valid handle, throw a MidiUnavailableException

    60     if (!deviceHandle) {

    61         ERROR0("Java_com_sun_media_sound_MidiOutDevice_nOpen:");

    62         ThrowJavaMessageException(e, JAVA_MIDI_PACKAGE_NAME"/MidiUnavailableException",

    63                                   MIDI_OUT_InternalGetErrorString(err));

    64     } else {

    65         TRACE0("Java_com_sun_media_sound_MidiOutDevice_nOpen succeeded\n");

    66     }

    67     return (jlong) (INT_PTR) deviceHandle;

    68 }

    69 

    70 

    71 JNIEXPORT void JNICALL

    72 Java_com_sun_media_sound_MidiOutDevice_nClose(JNIEnv* e, jobject thisObj, jlong deviceHandle) {

    73 

    74     TRACE0("Java_com_sun_media_sound_MidiOutDevice_nClose.\n");

    75 

    76 #if USE_PLATFORM_MIDI_OUT == TRUE

    77     MIDI_OUT_CloseDevice((MidiDeviceHandle*) (UINT_PTR) deviceHandle);

    78 #endif

    79 

    80     TRACE0("Java_com_sun_media_sound_MidiOutDevice_nClose succeeded\n");

    81 }

    82 

    83 

    84 JNIEXPORT jlong JNICALL

    85 Java_com_sun_media_sound_MidiOutDevice_nGetTimeStamp(JNIEnv* e, jobject thisObj, jlong deviceHandle) {

    86 

    87     jlong ret = -1;

    88 

    89     TRACE0("Java_com_sun_media_sound_MidiOutDevice_nGetTimeStamp.\n");

    90 

    91 #if USE_PLATFORM_MIDI_OUT == TRUE

    92     ret = (jlong) MIDI_OUT_GetTimeStamp((MidiDeviceHandle*) (UINT_PTR) deviceHandle);

    93 #endif

    94 

    95     /* Handle error codes. */

    96     if (ret < -1) {

    97         ERROR1("Java_com_sun_media_sound_MidiOutDevice_nGetTimeStamp: MIDI_IN_GetTimeStamp returned %lld\n", ret);

    98         ret = -1;

    99     }

   100     return ret;

   101 }

   102 

   103 

   104 JNIEXPORT void JNICALL

   105 Java_com_sun_media_sound_MidiOutDevice_nSendShortMessage(JNIEnv* e, jobject thisObj, jlong deviceHandle,

   106                                                          jint packedMsg, jlong timeStamp) {

   107 

   108     TRACE0("Java_com_sun_media_sound_MidiOutDevice_nSendShortMessage.\n");

   109 

   110 #if USE_PLATFORM_MIDI_OUT == TRUE

   111     MIDI_OUT_SendShortMessage((MidiDeviceHandle*) (UINT_PTR) deviceHandle,

   112                               (UINT32) packedMsg, (UINT32)timeStamp);

   113 #endif

   114 

   115     TRACE0("Java_com_sun_media_sound_MidiOutDevice_nSendShortMessage succeeded\n");

   116 }

   117 

   118 

   119 JNIEXPORT void JNICALL

   120 Java_com_sun_media_sound_MidiOutDevice_nSendLongMessage(JNIEnv* e, jobject thisObj, jlong deviceHandle,

   121                                                         jbyteArray jData, jint size, jlong timeStamp) {

   122 #if USE_PLATFORM_MIDI_OUT == TRUE

   123     UBYTE* data;

   124 #endif

   125 

   126     TRACE0("Java_com_sun_media_sound_MidiOutDevice_nSendLongMessage.\n");

   127 

   128 #if USE_PLATFORM_MIDI_OUT == TRUE

   129     data = (UBYTE*) ((*e)->GetByteArrayElements(e, jData, NULL));

   130     if (!data) {

   131         ERROR0("MidiOutDevice: Java_com_sun_media_sound_MidiOutDevice_nSendLongMessage: could not get array elements\n");

   132         return;

   133     }

   134     /* "continuation" sysex messages start with F7 (instead of F0), but

   135        are sent without the F7. */

   136     if (data[0] == 0xF7) {

   137         data++;

   138         size--;

   139     }

   140     MIDI_OUT_SendLongMessage((MidiDeviceHandle*) (UINT_PTR) deviceHandle, data,

   141                              (UINT32) size, (UINT32)timeStamp);

   142     // release the byte array

   143     (*e)->ReleaseByteArrayElements(e, jData, (jbyte*) data, JNI_ABORT);

   144 #endif

   145 

   146     TRACE0("Java_com_sun_media_sound_MidiOutDevice_nSendLongMessage succeeded\n");

   147 }