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leftover sound changes

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This commit is contained in:
Steven Fuller 2003-05-21 04:31:02 +00:00 • committed by Patryk Obara
parent d0484e7829
commit d3d12c5f46
1 changed files with 21 additions and 7 deletions
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28
src/openal.c
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@ -139,7 +139,7 @@ void PlatEndSoundSys()
// this table plots the frequency change for
// 128/ths of a semitone for one octave (0-1535),
// divide or multiply by 2 to subtract or add an octave
static float pitch_to_frequency_mult_table [] =
static const float pitch_to_frequency_mult_table [] =
{
1.0F, 1.00045137F, 1.000902943F, 1.00135472F, 1.001806701F, 1.002258886F, 1.002711275F, 1.003163868F,
1.003616666F, 1.004069668F, 1.004522874F, 1.004976285F, 1.005429901F, 1.005883722F, 1.006337747F, 1.006791977F,
@ -397,9 +397,11 @@ int PlatPlaySound(int activeIndex)
if (!PlatSoundHasStopped(activeIndex))
PlatStopSound (activeIndex);
#if 0
/* TODO: hack until pitching works right */
if (GameSounds[si].pitch < -500)
return 0;
#endif
alSourcei (ActiveSounds[activeIndex].ds3DBufferP, AL_BUFFER,
GameSounds[si].dsBufferP);
@ -471,7 +473,7 @@ void PlatStopSound(int activeIndex)
c = -600.0 / log10(.5);
x = pow(10, (double)vol_to_atten_table[volume]/c);
*/
static float vol_to_gain_table[] = {
static const float vol_to_gain_table[] = {
0.000000f, 0.000011f, 0.000054f, 0.000142f, 0.000279f, 0.000474f, 0.000730f, 0.001052f,
0.001441f, 0.001904f, 0.002444f, 0.003061f, 0.003764f, 0.004544f, 0.005417f, 0.006382f,
0.007434f, 0.008579f, 0.009820f, 0.011164f, 0.012604f, 0.014147f, 0.015788f, 0.017538f,
@ -514,25 +516,36 @@ int PlatChangeSoundVolume(int activeIndex, int volume)
int PlatChangeSoundPitch(int activeIndex, int pitch)
{
float frequency;
SOUNDINDEX gsi = ActiveSounds[activeIndex].soundIndex;
if (!SoundActivated)
return 0;
if ((pitch < PITCH_MIN) || (pitch >= PITCH_MAX))
return 0;
if (pitch == PITCH_DEFAULTPLAT) {
frequency = 0;
if (pitch == PITCH_DEFAULTPLAT) {
frequency = GameSounds[gsi].dsFrequency;
} else {
SOUNDINDEX gsi = ActiveSounds[activeIndex].soundIndex;
frequency = ToneToFrequency (GameSounds[gsi].dsFrequency,
GameSounds[gsi].pitch, pitch);
}
frequency = frequency / (float)GameSounds[gsi].dsFrequency;
if (frequency > 2.0) {
alSourceStop(ActiveSounds[activeIndex].ds3DBufferP);
return 0;
}
alSourcef(ActiveSounds[activeIndex].ds3DBufferP, AL_PITCH, frequency);
fprintf(stderr, "OPENAL: freq change = %f\n", frequency);
#if 0
if (pitch < -500) { /* currently can't play it anyway... */
alSourceStop(ActiveSounds[activeIndex].ds3DBufferP);
return 0;
}
#endif
ActiveSounds[activeIndex].pitch = pitch;
#ifdef OPENAL_DEBUG
@ -774,7 +787,8 @@ void InitialiseBaseFrequency(SOUNDINDEX soundNum)
frequency = ToneToFrequency(GameSounds[soundNum].dsFrequency,
PITCH_DEFAULTPLAT, GameSounds[soundNum].pitch);
fprintf(stderr, "OPENAL: old=%d,new=%d\n", GameSounds[soundNum].dsFrequency, frequency);
GameSounds[soundNum].dsFrequency = frequency;
}