/*
======================
S_StartBackgroundTrack
======================
*/
void S_Base_StartBackgroundTrack( const char *intro, const char *loop, float volume, float loopVolume ) {
if ( !intro ) {
intro = "";
}
if ( !loop || !loop[0] ) {
loop = intro;
}
Com_DPrintf( "S_StartBackgroundTrack( %s, %s, %f, %f )\n", intro, loop, volume, loopVolume );
if(!*intro)
{
S_Base_StopBackgroundTrack();
return;
}
s_backgroundVolume = Com_Clamp(0, 10, volume);
s_backgroundLoopVolume = Com_Clamp(0, 10, loopVolume);
if( !loop ) {
s_backgroundLoop[0] = 0;
} else {
Q_strncpyz( s_backgroundLoop, loop, sizeof( s_backgroundLoop ) );
}
S_OpenBackgroundStream( intro );
}
/*
==================
S_StopAllSounds
==================
*/
void S_Base_StopAllSounds(void) {
if ( !s_soundStarted ) {
return;
}
// stop the background music
S_Base_StopBackgroundTrack();
S_Base_ClearSoundBuffer ();
}
static void
S_Base_StopAllSounds(void)
{
if(!s_soundStarted)
return;
/* stop the background music */
S_Base_StopBackgroundTrack();
S_Base_ClearSoundBuffer ();
}
/*
======================
S_Base_StartBackgroundTrack
======================
*/
static void S_Base_StartBackgroundTrack( const char *intro, const char *loop ){
if ( !intro ) {
intro = "";
}
if ( !loop || !loop[0] ) {
loop = intro;
}
//Com_DPrintf( "S_StartBackgroundTrack( %s, %s )\n", intro, loop );
//Com_Printf( "S_StartBackgroundTrack( %s, %s )\n", intro, loop );
if(!*intro)
{
S_Base_StopBackgroundTrack();
return;
}
Q_strncpyz( s_backgroundLoop, loop, sizeof( s_backgroundLoop ) );
S_OpenBackgroundStream( intro );
}
/*
======================
S_StartBackgroundTrack
======================
*/
void S_Base_StartBackgroundTrack( const char *intro, const char *loop ){
if ( !intro ) {
intro = "";
}
if ( !loop || !loop[0] ) {
loop = intro;
}
Com_DPrintf( "S_StartBackgroundTrack( %s, %s )\n", intro, loop );
if(!*intro)
{
S_Base_StopBackgroundTrack();
return;
}
if( !loop ) {
s_backgroundLoop[0] = 0;
} else {
Q_strncpyz( s_backgroundLoop, loop, sizeof( s_backgroundLoop ) );
}
// close the background track, but DON'T reset s_rawend
// if restarting the same back ground track
if(s_backgroundStream)
{
S_CodecCloseStream(s_backgroundStream);
s_backgroundStream = NULL;
}
// Open stream
s_backgroundStream = S_CodecOpenStream(intro);
if(!s_backgroundStream) {
Com_Printf( S_COLOR_YELLOW "WARNING: couldn't open music file %s\n", intro );
return;
}
if(s_backgroundStream->info.channels != 2 || s_backgroundStream->info.rate != 22050) {
Com_Printf(S_COLOR_YELLOW "WARNING: music file %s is not 22k stereo\n", intro );
}
}
static void
S_Base_StartBackgroundTrack(const char *intro, const char *loop)
{
if(!intro)
intro = "";
if(!loop || !loop[0])
loop = intro;
comdprintf("sndstartbackgroundtrack( %s, %s )\n", intro, loop);
if(!*intro) {
S_Base_StopBackgroundTrack();
return;
}
if(!loop)
s_backgroundLoop[0] = 0;
else
Q_strncpyz(s_backgroundLoop, loop, sizeof(s_backgroundLoop));
/* close the background track, but DON'T reset s_rawend
* if restarting the same back ground track */
if(s_backgroundStream) {
S_CodecCloseStream(s_backgroundStream);
s_backgroundStream = NULL;
}
/* Open stream */
s_backgroundStream = S_CodecOpenStream(intro);
if(!s_backgroundStream) {
comprintf(S_COLOR_YELLOW "WARNING: couldn't open music file %s\n",
intro);
return;
}
if(s_backgroundStream->info.channels != 2 ||
s_backgroundStream->info.rate != 22050)
comprintf(S_COLOR_YELLOW
"WARNING: music file %s is not 22k stereo\n",
intro);
}
/*
======================
S_UpdateBackgroundTrack
======================
*/
void S_UpdateBackgroundTrack( void ) {
int bufferSamples;
int fileSamples;
byte raw[30000]; // just enough to fit in a mac stack frame
int fileBytes;
int r;
if(!s_backgroundStream) {
return;
}
// don't bother playing anything if musicvolume is 0
if ( s_musicVolume->value <= 0 ) {
return;
}
// see how many samples should be copied into the raw buffer
if ( s_rawend[0] < s_soundtime ) {
s_rawend[0] = s_soundtime;
}
while ( s_rawend[0] < s_soundtime + MAX_RAW_SAMPLES ) {
bufferSamples = MAX_RAW_SAMPLES - (s_rawend[0] - s_soundtime);
// decide how much data needs to be read from the file
fileSamples = bufferSamples * s_backgroundStream->info.rate / dma.speed;
if (!fileSamples)
return;
// our max buffer size
fileBytes = fileSamples * (s_backgroundStream->info.width * s_backgroundStream->info.channels);
if ( fileBytes > sizeof(raw) ) {
fileBytes = sizeof(raw);
fileSamples = fileBytes / (s_backgroundStream->info.width * s_backgroundStream->info.channels);
}
// Read
r = S_CodecReadStream(s_backgroundStream, fileBytes, raw);
if(r < fileBytes)
{
fileBytes = r;
fileSamples = r / (s_backgroundStream->info.width * s_backgroundStream->info.channels);
}
if(r > 0)
{
// add to raw buffer
S_Base_RawSamples(0, fileSamples, s_backgroundStream->info.rate,
s_backgroundStream->info.width, s_backgroundStream->info.channels, raw, s_musicVolume->value, -1);
}
else
{
// loop
if(s_backgroundLoop[0])
{
S_CodecCloseStream(s_backgroundStream);
s_backgroundStream = NULL;
S_Base_StartBackgroundTrack( s_backgroundLoop, s_backgroundLoop );
if(!s_backgroundStream)
return;
}
else
{
S_Base_StopBackgroundTrack();
return;
}
}
}
}
/*
======================
S_UpdateBackgroundTrack
======================
*/
void S_UpdateBackgroundTrack( void ) {
int bufferSamples;
int fileSamples;
byte raw[30000]; // just enough to fit in a mac stack frame
int fileBytes;
int r;
static float musicVolume = 0.5f;
if(!s_backgroundStream) {
return;
}
// graeme see if this is OK
musicVolume = (musicVolume + (s_musicVolume->value * 2))/4.0f;
// don't bother playing anything if musicvolume is 0
if ( musicVolume <= 0 ) {
return;
}
// see how many samples should be copied into the raw buffer
if ( s_rawend < s_soundtime ) {
s_rawend = s_soundtime;
}
while ( s_rawend < s_soundtime + MAX_RAW_SAMPLES ) {
bufferSamples = MAX_RAW_SAMPLES - (s_rawend - s_soundtime);
// decide how much data needs to be read from the file
fileSamples = (bufferSamples * dma.speed) / s_backgroundStream->info.rate;
// our max buffer size
fileBytes = fileSamples * (s_backgroundStream->info.width * s_backgroundStream->info.channels);
if ( fileBytes > sizeof(raw) ) {
fileBytes = sizeof(raw);
fileSamples = fileBytes / (s_backgroundStream->info.width * s_backgroundStream->info.channels);
}
// Read
r = S_CodecReadStream(s_backgroundStream, fileBytes, raw);
if(r < fileBytes)
{
fileBytes = r;
fileSamples = r / (s_backgroundStream->info.width * s_backgroundStream->info.channels);
}
if(r > 0)
{
// add to raw buffer
S_Base_RawSamples( fileSamples, s_backgroundStream->info.rate,
s_backgroundStream->info.width, s_backgroundStream->info.channels, raw, musicVolume );
}
else
{
// loop
if(s_backgroundLoop[0])
{
S_OpenBackgroundStream( s_backgroundLoop );
if(!s_backgroundStream)
return;
}
else
{
S_Base_StopBackgroundTrack();
return;
}
}
}
}
void
sndupdatebackgroundtrack(void)
{
int bufferSamples;
int fileSamples;
byte raw[30000]; /* just enough to fit in a mac stack frame */
int fileBytes;
int r;
if(!s_backgroundStream)
return;
if(s_musicVolume->value <= 0)
return;
/* see how many samples should be copied into the raw buffer */
if(s_rawend[0] < s_soundtime)
s_rawend[0] = s_soundtime;
while(s_rawend[0] < s_soundtime + MAX_RAW_SAMPLES) {
bufferSamples = MAX_RAW_SAMPLES - (s_rawend[0] - s_soundtime);
/* decide how much data needs to be read from the file */
fileSamples = bufferSamples * s_backgroundStream->info.rate /
dma.speed;
if(!fileSamples)
return;
/* our max buffer size */
fileBytes = fileSamples *
(s_backgroundStream->info.width *
s_backgroundStream->info.channels);
if(fileBytes > sizeof(raw)) {
fileBytes = sizeof(raw);
fileSamples = fileBytes /
(s_backgroundStream->info.width *
s_backgroundStream->info.channels);
}
r = S_CodecReadStream(s_backgroundStream, fileBytes, raw);
if(r < fileBytes) {
fileBytes = r;
fileSamples = r / (s_backgroundStream->info.width *
s_backgroundStream->info.channels);
}
if(r > 0)
/* add to raw buffer */
S_Base_RawSamples(0, fileSamples,
s_backgroundStream->info.rate,
s_backgroundStream->info.width,
s_backgroundStream->info.channels, raw,
s_musicVolume->value,
-1);
else {
/* loop */
if(s_backgroundLoop[0]) {
S_CodecCloseStream(s_backgroundStream);
s_backgroundStream = NULL;
S_Base_StartBackgroundTrack(s_backgroundLoop,
s_backgroundLoop);
if(!s_backgroundStream)
return;
} else {
S_Base_StopBackgroundTrack();
return;
}
}
}
}
