xash3d-fwgs/engine/client/s_mouth.c

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/*
s_mouth.c - animate mouth
Copyright (C) 2010 Uncle Mike
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
*/
#include "common.h"
#include "sound.h"
#include "client.h"
#include "const.h"
#define CAVGSAMPLES 10
void SND_InitMouth( int entnum, int entchannel )
{
if(( entchannel == CHAN_VOICE || entchannel == CHAN_STREAM ) && entnum > 0 )
{
cl_entity_t *clientEntity;
// init mouth movement vars
clientEntity = CL_GetEntityByIndex( entnum );
if( clientEntity )
{
clientEntity->mouth.mouthopen = 0;
clientEntity->mouth.sndcount = 0;
clientEntity->mouth.sndavg = 0;
}
}
}
void SND_CloseMouth( channel_t *ch )
{
if( ch->entchannel == CHAN_VOICE || ch->entchannel == CHAN_STREAM )
{
cl_entity_t *clientEntity;
clientEntity = CL_GetEntityByIndex( ch->entnum );
if( clientEntity )
{
// shut mouth
clientEntity->mouth.mouthopen = 0;
}
}
}
void SND_MoveMouth8( channel_t *ch, wavdata_t *pSource, int count )
{
cl_entity_t *clientEntity;
char *pdata = NULL;
mouth_t *pMouth = NULL;
int scount, pos = 0;
int savg, data;
uint i;
clientEntity = CL_GetEntityByIndex( ch->entnum );
if( !clientEntity ) return;
pMouth = &clientEntity->mouth;
if( ch->isSentence )
{
if( ch->currentWord )
pos = ch->currentWord->sample;
}
else pos = ch->pMixer.sample;
count = S_GetOutputData( pSource, &pdata, pos, count, ch->use_loop );
if( pdata == NULL ) return;
i = 0;
scount = pMouth->sndcount;
savg = 0;
while( i < count && scount < CAVGSAMPLES )
{
data = pdata[i];
savg += abs( data );
i += 80 + ((byte)data & 0x1F);
scount++;
}
pMouth->sndavg += savg;
pMouth->sndcount = (byte)scount;
if( pMouth->sndcount >= CAVGSAMPLES )
{
pMouth->mouthopen = pMouth->sndavg / CAVGSAMPLES;
pMouth->sndavg = 0;
pMouth->sndcount = 0;
}
}
void SND_MoveMouth16( channel_t *ch, wavdata_t *pSource, int count )
{
cl_entity_t *clientEntity;
short *pdata = NULL;
mouth_t *pMouth = NULL;
int savg, data;
int scount, pos = 0;
uint i;
clientEntity = CL_GetEntityByIndex( ch->entnum );
if( !clientEntity ) return;
pMouth = &clientEntity->mouth;
if( ch->isSentence )
{
if( ch->currentWord )
pos = ch->currentWord->sample;
}
else pos = ch->pMixer.sample;
count = S_GetOutputData( pSource, &pdata, pos, count, ch->use_loop );
if( pdata == NULL ) return;
i = 0;
scount = pMouth->sndcount;
savg = 0;
while( i < count && scount < CAVGSAMPLES )
{
data = pdata[i];
data = (bound( -32767, data, 0x7ffe ) >> 8);
savg += abs( data );
i += 80 + ((byte)data & 0x1F);
scount++;
}
pMouth->sndavg += savg;
pMouth->sndcount = (byte)scount;
if( pMouth->sndcount >= CAVGSAMPLES )
{
pMouth->mouthopen = pMouth->sndavg / CAVGSAMPLES;
pMouth->sndavg = 0;
pMouth->sndcount = 0;
}
}