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 package com.sun.media.sound;
27
28 import javax.sound.sampled.Mixer;
29 import javax.sound.sampled.spi.MixerProvider;
30
31
32 /**
33 * Port provider.
34 *
35 * @author Florian Bomers
36 */
37 public final class PortMixerProvider extends MixerProvider {
38
39 // STATIC VARIABLES
40
41 /**
42 * Set of info objects for all port input devices on the system.
43 */
44 private static PortMixerInfo[] infos;
45
46 /**
47 * Set of all port input devices on the system.
48 */
49 private static PortMixer[] devices;
50
51
52 // STATIC
53
54 static {
55 // initialize
56 Platform.initialize();
57 }
58
59
60 // CONSTRUCTOR
61
62
63 /**
64 * Required public no-arg constructor.
65 */
66 public PortMixerProvider() {
67 synchronized (PortMixerProvider.class) {
68 if (Platform.isPortsEnabled()) {
69 init();
70 } else {
71 infos = new PortMixerInfo[0];
72 devices = new PortMixer[0];
73 }
74 }
75 }
76
77 private static void init() {
78 // get the number of input devices
79 int numDevices = nGetNumDevices();
80
81 if (infos == null || infos.length != numDevices) {
82 if (Printer.trace) Printer.trace("PortMixerProvider: init()");
83 // initialize the arrays
84 infos = new PortMixerInfo[numDevices];
85 devices = new PortMixer[numDevices];
86
87 // fill in the info objects now.
88 // we'll fill in the device objects as they're requested.
89 for (int i = 0; i < infos.length; i++) {
90 infos[i] = nNewPortMixerInfo(i);
91 }
92 if (Printer.trace) Printer.trace("PortMixerProvider: init(): found numDevices: " + numDevices);
93 }
94 }
95
96 public Mixer.Info[] getMixerInfo() {
97 synchronized (PortMixerProvider.class) {
98 Mixer.Info[] localArray = new Mixer.Info[infos.length];
99 System.arraycopy(infos, 0, localArray, 0, infos.length);
100 return localArray;
101 }
102 }
103
104 public Mixer getMixer(Mixer.Info info) {
105 synchronized (PortMixerProvider.class) {
106 for (int i = 0; i < infos.length; i++) {
107 if (infos[i].equals(info)) {
108 return getDevice(infos[i]);
109 }
110 }
111 }
112 throw new IllegalArgumentException(
113 String.format("Mixer %s not supported by this provider", info));
114 }
115
116
117 private static Mixer getDevice(PortMixerInfo info) {
118 int index = info.getIndex();
119 if (devices[index] == null) {
120 devices[index] = new PortMixer(info);
121 }
122 return devices[index];
123 }
124
125 // INNER CLASSES
126
127
128 /**
129 * Info class for PortMixers. Adds an index value for
130 * making native references to a particular device.
131 * This constructor is called from native.
132 */
133 static final class PortMixerInfo extends Mixer.Info {
134 private final int index;
135
136 private PortMixerInfo(int index, String name, String vendor, String description, String version) {
137 super("Port " + name, vendor, description, version);
138 this.index = index;
139 }
140
141 int getIndex() {
142 return index;
143 }
144
145 } // class PortMixerInfo
146
147 // NATIVE METHODS
148 private static native int nGetNumDevices();
149 private static native PortMixerInfo nNewPortMixerInfo(int mixerIndex);
150 }
|
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 package com.sun.media.sound;
27
28 import javax.sound.sampled.Mixer;
29 import javax.sound.sampled.spi.MixerProvider;
30
31 /**
32 * Port provider.
33 *
34 * @author Florian Bomers
35 */
36 public final class PortMixerProvider extends MixerProvider {
37
38 /**
39 * Set of info objects for all port input devices on the system.
40 */
41 private static PortMixerInfo[] infos;
42
43 /**
44 * Set of all port input devices on the system.
45 */
46 private static PortMixer[] devices;
47
48 static {
49 // initialize
50 Platform.initialize();
51 }
52
53 /**
54 * Required public no-arg constructor.
55 */
56 public PortMixerProvider() {
57 synchronized (PortMixerProvider.class) {
58 if (Platform.isPortsEnabled()) {
59 init();
60 } else {
61 infos = new PortMixerInfo[0];
62 devices = new PortMixer[0];
63 }
64 }
65 }
66
67 private static void init() {
68 // get the number of input devices
69 int numDevices = nGetNumDevices();
70
71 if (infos == null || infos.length != numDevices) {
72 if (Printer.trace) Printer.trace("PortMixerProvider: init()");
73 // initialize the arrays
74 infos = new PortMixerInfo[numDevices];
75 devices = new PortMixer[numDevices];
76
77 // fill in the info objects now.
78 // we'll fill in the device objects as they're requested.
79 for (int i = 0; i < infos.length; i++) {
80 infos[i] = nNewPortMixerInfo(i);
81 }
82 if (Printer.trace) Printer.trace("PortMixerProvider: init(): found numDevices: " + numDevices);
83 }
84 }
85
86 @Override
87 public Mixer.Info[] getMixerInfo() {
88 synchronized (PortMixerProvider.class) {
89 Mixer.Info[] localArray = new Mixer.Info[infos.length];
90 System.arraycopy(infos, 0, localArray, 0, infos.length);
91 return localArray;
92 }
93 }
94
95 @Override
96 public Mixer getMixer(Mixer.Info info) {
97 synchronized (PortMixerProvider.class) {
98 for (int i = 0; i < infos.length; i++) {
99 if (infos[i].equals(info)) {
100 return getDevice(infos[i]);
101 }
102 }
103 }
104 throw new IllegalArgumentException(
105 String.format("Mixer %s not supported by this provider", info));
106 }
107
108 private static Mixer getDevice(PortMixerInfo info) {
109 int index = info.getIndex();
110 if (devices[index] == null) {
111 devices[index] = new PortMixer(info);
112 }
113 return devices[index];
114 }
115
116 /**
117 * Info class for PortMixers. Adds an index value for
118 * making native references to a particular device.
119 * This constructor is called from native.
120 */
121 static final class PortMixerInfo extends Mixer.Info {
122 private final int index;
123
124 private PortMixerInfo(int index, String name, String vendor, String description, String version) {
125 super("Port " + name, vendor, description, version);
126 this.index = index;
127 }
128
129 int getIndex() {
130 return index;
131 }
132
133 } // class PortMixerInfo
134
135 private static native int nGetNumDevices();
136 private static native PortMixerInfo nNewPortMixerInfo(int mixerIndex);
137 }
|