static void
AL_InitUnderwaterFilter()
{
#if defined (__APPLE__)
return;
#else
/* Generate a filter */
qalGenFilters(1, &underwaterFilter);
if (qalGetError() != AL_NO_ERROR)
{
Com_Printf("Couldn't generate an OpenAL filter!\n");
return;
}
/* Low pass filter for underwater effect */
qalFilteri(underwaterFilter, AL_FILTER_TYPE, AL_FILTER_LOWPASS);
if (qalGetError() != AL_NO_ERROR)
{
Com_Printf("Low pass filter is not supported!\n");
return;
}
/* The effect */
qalFilterf(underwaterFilter, AL_LOWPASS_GAIN, 1.5);
qalFilterf(underwaterFilter, AL_LOWPASS_GAINHF, 0.25);
#endif
}
/*
* Set up the underwater filter
*/
static void
AL_InitUnderwaterFilter()
{
underwaterFilter = 0;
if (!(qalGenFilters && qalFilteri && qalFilterf && qalDeleteFilters))
return;
/* Generate a filter */
qalGenFilters(1, &underwaterFilter);
if (qalGetError() != AL_NO_ERROR)
{
Com_Printf("Couldn't generate an OpenAL filter!\n");
return;
}
/* Low pass filter for underwater effect */
qalFilteri(underwaterFilter, AL_FILTER_TYPE, AL_FILTER_LOWPASS);
if (qalGetError() != AL_NO_ERROR)
{
Com_Printf("Low pass filter is not supported!\n");
return;
}
qalFilterf(underwaterFilter, AL_LOWPASS_GAIN, AL_LOWPASS_DEFAULT_GAIN);
s_underwater->modified = true;
s_underwater_gain_hf->modified = true;
}
static void AL_InitUnderwaterFilter()
{
// Generate a filter
qalGenFilters(1, &underwaterFilter);
if (qalGetError() != AL_NO_ERROR)
{
Com_Printf("Couldn't generate an OpenAL filter!\n");
return;
}
// Low pass filter for underwater effect
qalFilteri(underwaterFilter, AL_FILTER_TYPE, AL_FILTER_LOWPASS);
if (qalGetError() != AL_NO_ERROR)
{
Com_Printf("Low pass filter is not supported!\n");
return;
}
// The effect
qalFilterf(underwaterFilter, AL_LOWPASS_GAIN, 1.5);
qalFilterf(underwaterFilter, AL_LOWPASS_GAINHF, 0.25);
}
void oal_update_underwater()
{
int i;
float gain_hf;
qboolean update = false;
ALuint filter;
if (underwaterFilter == 0)
return;
if (s_underwater->modified) {
update = true;
s_underwater->modified = false;
snd_is_underwater_enabled = ((int)s_underwater->value != 0);
}
if (s_underwater_gain_hf->modified) {
update = true;
s_underwater_gain_hf->modified = false;
}
if (!update)
return;
gain_hf = s_underwater_gain_hf->value;
if (gain_hf < AL_LOWPASS_MIN_GAINHF)
gain_hf = AL_LOWPASS_MIN_GAINHF;
if (gain_hf > AL_LOWPASS_MAX_GAINHF)
gain_hf = AL_LOWPASS_MAX_GAINHF;
qalFilterf(underwaterFilter, AL_LOWPASS_GAINHF, gain_hf);
if (snd_is_underwater_enabled && snd_is_underwater)
filter = underwaterFilter;
else
filter = 0;
for (i = 0; i < s_numchannels; ++i)
qalSourcei(s_srcnums[i], AL_DIRECT_FILTER, filter);
}
