/*
========================
S_ScanChannelStarts
Returns qtrue if any new sounds were started since the last mix
========================
*/
qboolean S_ScanChannelStarts( void ) {
channel_t *ch;
int i;
qboolean newSamples;
newSamples = qfalse;
ch = s_channels;
for (i=0; i<MAX_CHANNELS ; i++, ch++) {
if ( !ch->thesfx ) {
continue;
}
// if this channel was just started this frame,
// set the sample count to it begins mixing
// into the very first sample
if ( ch->startSample == START_SAMPLE_IMMEDIATE ) {
ch->startSample = s_paintedtime;
newSamples = qtrue;
continue;
}
// if it is completely finished by now, clear it
if ( ch->startSample + (ch->thesfx->soundLength) <= s_paintedtime ) {
S_ChannelFree(ch);
}
}
return newSamples;
}
/*
========================
S_ScanChannelStarts
Returns qtrue if any new sounds were started since the last mix
========================
*/
static qboolean S_ScanChannelStarts( void ) {
channel_t *ch;
int i;
qboolean newSamples;
float scale;
newSamples = qfalse;
ch = s_channels;
if (s_useTimescale->integer) {
scale = com_timescale->value;
} else if (s_forceScale->value > 0.0) {
scale = s_forceScale->value;
} else {
scale = 1;
}
for (i=0; i<MAX_CHANNELS ; i++, ch++) {
if ( !ch->thesfx ) {
continue;
}
// if this channel was just started this frame,
// set the sample count to it begins mixing
// into the very first sample
if ( ch->startSample == START_SAMPLE_IMMEDIATE ) {
ch->startSample = s_paintedtime;
newSamples = qtrue;
continue;
}
// if it is completely finished by now, clear it
if ( ch->startSample + (ceil((float)ch->thesfx->soundLength / scale)) <= s_paintedtime ) {
//Com_Printf("freeing %p\n", ch);
S_ChannelFree(ch);
}
}
return newSamples;
}
void S_Base_ClearSounds(qboolean clearStreaming, qboolean clearMusic)
{
if (!s_soundStarted)
{
return;
}
// stop looping sounds
Com_Memset(loopSounds, 0, MAX_LOOP_SOUNDS * sizeof(loopSound_t));
Com_Memset(loop_channels, 0, MAX_CHANNELS * sizeof(channel_t));
numLoopChannels = 0;
numLoopSounds = 0;
// moved this up so streaming sounds dont get updated with the music, below,
// and leave us with a snippet off streaming sounds after we reload
if (clearStreaming)
{
int i;
streamingSound_t *ss;
channel_t *ch;
for (i = 0, ss = streamingSounds; i < MAX_STREAMING_SOUNDS; i++, ss++)
{
if (i > 0 || clearMusic)
{
S_StopStreamingSound(i);
}
}
// we should also kill all channels, since we are killing streaming sounds anyway
// (fixes siren in forest playing after a map_restart/loadgame
ch = s_channels;
for (i = 0; i < MAX_CHANNELS; i++, ch++)
{
if (ch->thesfx)
{
S_ChannelFree(ch);
}
}
}
if (!clearMusic)
{
S_UpdateStreamingSounds();
}
if (clearStreaming && clearMusic)
{
int clear;
if (dma.samplebits == 8)
{
clear = 0x80;
}
else
{
clear = 0;
}
SNDDMA_BeginPainting();
if (dma.buffer)
{
Com_Memset(dma.buffer, clear, dma.samples * dma.samplebits / 8);
}
SNDDMA_Submit();
// clear out channels so they don't finish playing when audio restarts
S_ChannelSetup();
}
}
/*
====================
S_StartSoundEx
Validates the parms and ques the sound up
if pos is NULL, the sound will be dynamically sourced from the entity
Entchannel 0 will never override a playing sound
====================
*/
void S_Base_StartSoundEx(vec3_t origin, int entnum, int entchannel, sfxHandle_t sfxHandle, int flags, int volume)
{
channel_t *ch;
sfx_t *sfx;
int i, time;
if (!s_soundStarted || s_soundMuted)
{
//Com_Printf(S_COLOR_YELLOW "S_Base_StartSoundEx: sound not started or muted\n");
return;
}
if (!origin && (entnum < 0 || entnum >= MAX_GENTITIES))
{
Com_Error(ERR_DROP, "S_Base_StartSoundEx: bad entitynum %i", entnum);
}
if (sfxHandle < 0 || sfxHandle >= numSfx)
{
Com_Printf(S_COLOR_YELLOW "S_Base_StartSoundEx: handle %i out of range", sfxHandle);
return;
}
sfx = &knownSfx[sfxHandle];
if (sfx->inMemory == qfalse)
{
S_memoryLoad(sfx);
}
if (s_show->integer == 1)
{
Com_Printf("S_Base_StartSoundEx: %i : %s\n", s_paintedtime, sfx->soundName);
}
time = Sys_Milliseconds();
ch = s_channels;
for (i = 0; i < MAX_CHANNELS ; i++, ch++)
{
if (ch->entnum == entnum && ch->thesfx)
{
if (ch->thesfx == sfx && time - ch->allocTime < 50) // double played in one frame
{
return;
}
else if (ch->entchannel == entchannel && (flags & SND_CUTOFF_ALL)) // cut the sounds that are flagged to be cut
{
S_ChannelFree(ch);
}
}
}
sfx->lastTimeUsed = time;
ch = S_ChannelMalloc();
if (!ch)
{
int oldest = sfx->lastTimeUsed;
int chosen = -1;
ch = s_channels;
for (i = 0 ; i < MAX_CHANNELS ; i++, ch++)
{
if (ch->entnum != listener_number && ch->entnum == entnum && ch->allocTime < oldest && ch->entchannel != CHAN_ANNOUNCER)
{
oldest = ch->allocTime;
chosen = i;
}
}
if (chosen == -1)
{
ch = s_channels;
for (i = 0 ; i < MAX_CHANNELS ; i++, ch++)
{
if (ch->entnum != listener_number && ch->allocTime < oldest && ch->entchannel != CHAN_ANNOUNCER)
{
oldest = ch->allocTime;
chosen = i;
}
}
if (chosen == -1)
{
ch = s_channels;
if (ch->entnum == listener_number)
{
for (i = 0 ; i < MAX_CHANNELS ; i++, ch++)
{
if (ch->allocTime < oldest)
{
oldest = ch->allocTime;
chosen = i;
}
}
}
if (chosen == -1)
{
Com_Printf("S_Base_StartSoundEx WARNING: dropping sound\n");
return;
}
}
}
ch = &s_channels[chosen];
ch->allocTime = sfx->lastTimeUsed;
}
if (origin)
{
VectorCopy(origin, ch->origin);
ch->fixed_origin = qtrue;
}
else
{
ch->fixed_origin = qfalse;
}
ch->flags = flags;
ch->master_vol = volume;
ch->entnum = entnum;
ch->thesfx = sfx;
ch->startSample = START_SAMPLE_IMMEDIATE;
ch->entchannel = entchannel;
ch->leftvol = ch->master_vol; // these will get calced at next spatialize
ch->rightvol = ch->master_vol; // unless the game isn't running
ch->doppler = qfalse;
}
