1 /* 2 * Copyright (c) 2002, 2014, 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 //#define USE_TRACE 27 //#define USE_ERROR 28 29 30 #include <jni.h> 31 #include <jni_util.h> 32 #include "SoundDefs.h" 33 #include "DirectAudio.h" 34 #include "Utilities.h" 35 #include "com_sun_media_sound_DirectAudioDeviceProvider.h" 36 37 38 //////////////////////////////////////////// DirectAudioDeviceProvider //////////////////////////////////////////// 39 40 int getDirectAudioDeviceDescription(int mixerIndex, DirectAudioDeviceDescription* desc) { 41 desc->deviceID = 0; 42 desc->maxSimulLines = 0; 43 strcpy(desc->name, "Unknown Name"); 44 strcpy(desc->vendor, "Unknown Vendor"); 45 strcpy(desc->description, "Unknown Description"); 46 strcpy(desc->version, "Unknown Version"); 47 #if USE_DAUDIO == TRUE 48 DAUDIO_GetDirectAudioDeviceDescription(mixerIndex, desc); 49 #endif // USE_DAUDIO 50 return TRUE; 51 } 52 53 JNIEXPORT jint JNICALL Java_com_sun_media_sound_DirectAudioDeviceProvider_nGetNumDevices(JNIEnv *env, jclass cls) { 54 INT32 numDevices = 0; 55 56 TRACE0("Java_com_sun_media_sound_DirectAudioDeviceProvider_nGetNumDevices.\n"); 57 58 #if USE_DAUDIO == TRUE 59 numDevices = DAUDIO_GetDirectAudioDeviceCount(); 60 #endif // USE_DAUDIO 61 62 TRACE1("Java_com_sun_media_sound_DirectAudioDeviceProvider_nGetNumDevices returning %d.\n", (int) numDevices); 63 64 return (jint)numDevices; 65 } 66 67 JNIEXPORT jobject JNICALL Java_com_sun_media_sound_DirectAudioDeviceProvider_nNewDirectAudioDeviceInfo 68 (JNIEnv *env, jclass cls, jint mixerIndex) { 69 70 jclass directAudioDeviceInfoClass; 71 jmethodID directAudioDeviceInfoConstructor; 72 DirectAudioDeviceDescription desc; 73 jobject info = NULL; 74 jstring name; 75 jstring vendor; 76 jstring description; 77 jstring version; 78 79 TRACE1("Java_com_sun_media_sound_DirectAudioDeviceProvider_nNewDirectAudioDeviceInfo(%d).\n", mixerIndex); 80 81 // retrieve class and constructor of DirectAudioDeviceProvider.DirectAudioDeviceInfo 82 directAudioDeviceInfoClass = (*env)->FindClass(env, IMPLEMENTATION_PACKAGE_NAME"/DirectAudioDeviceProvider$DirectAudioDeviceInfo"); 83 if (directAudioDeviceInfoClass == NULL) { 84 ERROR0("Java_com_sun_media_sound_DirectAudioDeviceProvider_nNewDirectAudioDeviceInfo: directAudioDeviceInfoClass is NULL\n"); 85 return NULL; 86 } 87 directAudioDeviceInfoConstructor = (*env)->GetMethodID(env, directAudioDeviceInfoClass, "<init>", 88 "(IIILjava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V"); 89 if (directAudioDeviceInfoConstructor == NULL) { 90 ERROR0("Java_com_sun_media_sound_DirectAudioDeviceProvider_nNewDirectAudioDeviceInfo: directAudioDeviceInfoConstructor is NULL\n"); 91 return NULL; 92 } 93 94 TRACE1("Get description for device %d\n", mixerIndex); 95 96 if (getDirectAudioDeviceDescription(mixerIndex, &desc)) { 97 // create a new DirectAudioDeviceInfo object and return it 98 name = (*env)->NewStringUTF(env, desc.name); 99 CHECK_NULL_RETURN(name, info); 100 vendor = (*env)->NewStringUTF(env, desc.vendor); 101 CHECK_NULL_RETURN(vendor, info); 102 description = (*env)->NewStringUTF(env, desc.description); 103 CHECK_NULL_RETURN(description, info); 104 version = (*env)->NewStringUTF(env, desc.version); 105 CHECK_NULL_RETURN(version, info); 106 info = (*env)->NewObject(env, directAudioDeviceInfoClass, 107 directAudioDeviceInfoConstructor, mixerIndex, 108 desc.deviceID, desc.maxSimulLines, 109 name, vendor, description, version); 110 } else { 111 ERROR1("ERROR: getDirectAudioDeviceDescription(%d, desc) returned FALSE!\n", mixerIndex); 112 } 113 114 TRACE0("Java_com_sun_media_sound_DirectAudioDeviceProvider_nNewDirectAudioDeviceInfo succeeded.\n"); 115 return info; 116 }