1 /*
2 * Copyright (c) 1999, 2020, 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
Java_com_sun_media_sound_MidiOutDevice_nOpen(JNIEnv * e,jobject thisObj,jint index)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
Java_com_sun_media_sound_MidiOutDevice_nClose(JNIEnv * e,jobject thisObj,jlong deviceHandle)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
Java_com_sun_media_sound_MidiOutDevice_nGetTimeStamp(JNIEnv * e,jobject thisObj,jlong deviceHandle)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
Java_com_sun_media_sound_MidiOutDevice_nSendShortMessage(JNIEnv * e,jobject thisObj,jlong deviceHandle,jint packedMsg,jlong timeStamp)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
Java_com_sun_media_sound_MidiOutDevice_nSendLongMessage(JNIEnv * e,jobject thisObj,jlong deviceHandle,jbyteArray jData,jint size,jlong timeStamp)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 && size > 1) {
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 }
148