4 // This is broken, but allows the file to compile without a POSIX
6 static unsigned int sleep(unsigned int secs) { return 0; }
8 #include <unistd.h> // sleep()
11 #if defined( __APPLE__ )
12 # define AL_ILLEGAL_ENUM AL_INVALID_ENUM
13 # define AL_ILLEGAL_COMMAND AL_INVALID_OPERATION
14 # include <OpenAL/al.h>
15 # include <OpenAL/alc.h>
16 # include <OpenAL/alut.h>
23 #include <simgear/debug/logstream.hxx>
25 static void print_openal_error( ALuint error ) {
26 if ( error == AL_INVALID_NAME ) {
27 SG_LOG( SG_GENERAL, SG_ALERT, "AL_INVALID_NAME" );
28 } else if ( error == AL_ILLEGAL_ENUM ) {
29 SG_LOG( SG_GENERAL, SG_ALERT, "AL_ILLEGAL_ENUM" );
30 } else if ( error == AL_INVALID_VALUE ) {
31 SG_LOG( SG_GENERAL, SG_ALERT, "AL_INVALID_VALUE" );
32 } else if ( error == AL_ILLEGAL_COMMAND ) {
33 SG_LOG( SG_GENERAL, SG_ALERT, "AL_ILLEGAL_COMMAND" );
34 } else if ( error == AL_OUT_OF_MEMORY ) {
35 SG_LOG( SG_GENERAL, SG_ALERT, "AL_OUT_OF_MEMORY" );
37 SG_LOG( SG_GENERAL, SG_ALERT, "Unhandled error code = " << error );
42 int main( int argc, char *argv[] ) {
48 if ( (dev = alcOpenDevice( NULL )) != NULL
49 && ( context = alcCreateContext( dev, NULL )) != NULL ) {
50 alcMakeContextCurrent( context );
53 SG_LOG( SG_GENERAL, SG_ALERT, "Audio initialization failed!" );
56 // Position of the listener.
57 ALfloat listener_pos[3];
59 // Velocity of the listener.
60 ALfloat listener_vel[3];
62 // Orientation of the listener. (first 3 elements are "at", second
64 ALfloat listener_ori[6];
66 listener_pos[0] = 0.0;
67 listener_pos[1] = 0.0;
68 listener_pos[2] = 0.0;
70 listener_vel[0] = 0.0;
71 listener_vel[1] = 0.0;
72 listener_vel[2] = 0.0;
74 listener_ori[0] = 0.0;
75 listener_ori[1] = 0.0;
76 listener_ori[2] = -1.0;
77 listener_ori[3] = 0.0;
78 listener_ori[4] = 1.0;
79 listener_ori[5] = 0.0;
81 alListenerfv( AL_POSITION, listener_pos );
82 alListenerfv( AL_VELOCITY, listener_vel );
83 alListenerfv( AL_ORIENTATION, listener_ori );
85 // Buffers hold sound data.
88 // Sources are points emitting sound.
91 // Position of the source sound.
92 ALfloat source_pos[3];
94 // Velocity of the source sound.
95 ALfloat source_vel[3];
97 // configuration values
104 source_pos[0] = 0.0; source_pos[1] = 0.0; source_pos[2] = 0.0;
105 source_vel[0] = 0.0; source_vel[1] = 0.0; source_vel[2] = 0.0;
107 // create an OpenAL buffer handle
108 alGenBuffers(1, &buffer);
109 ALuint error = alGetError();
110 if ( error != AL_NO_ERROR ) {
111 print_openal_error( error );
112 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to gen OpenAL buffer." );
114 SG_LOG( SG_GENERAL, SG_ALERT, "Buffer created ok!" );
117 // Load the sample file
118 #if defined(ALUT_API_MAJOR_VERSION) && ALUT_API_MAJOR_VERSION >= 1
120 buffer = alutCreateBufferFromFile("jet.wav");
121 if (buffer == AL_NONE) {
122 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to buffer data.");
126 # if defined (__APPLE__)
127 alutLoadWAVFile( (ALbyte *)"jet.wav", &format, &data, &size, &freq );
129 alutLoadWAVFile( (ALbyte *)"jet.wav", &format, &data, &size, &freq, &loop );
131 if (alGetError() != AL_NO_ERROR) {
132 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to load wav file.");
135 // Copy data to the internal OpenAL buffer
136 alBufferData( buffer, format, data, size, freq );
137 if (alGetError() != AL_NO_ERROR) {
138 SG_LOG( SG_GENERAL, SG_ALERT, "Failed to buffer data.");
141 alutUnloadWAV( format, data, size, freq );
144 alGenSources(1, &source);
145 if (alGetError() != AL_NO_ERROR) {
146 print_openal_error( error );
149 alSourcei( source, AL_BUFFER, buffer );
150 alSourcef( source, AL_PITCH, 1.0 );
151 alSourcef( source, AL_GAIN, 1.0 );
152 alSourcefv( source, AL_POSITION, source_pos );
153 alSourcefv( source, AL_VELOCITY, source_vel );
154 alSourcei( source, AL_LOOPING, loop );
156 alSourcePlay( source );