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fteqw/engine/client/snd_mix.c
Spoike 6d36834f8e Reworked client support for DPP5+. less code now, its much more graceful. 
added waterfog command. waterfog overrides regular fog only when the view is in water.
fixed 64bit printf format specifiers. should work better on winxp64.
fixed some spec angle weirdness.
fixed viewsize 99.99 weirdness with ezhud.
fixed extra offset on the console (exhibited in 64bit builds, but not limited to).
fixed .avi playback, can now actually display frames again.
reimplemented line sparks.
fixed r_editlights_save flipping the light's pitch.
fixed issue with oggs failing to load.
fixed condump to cope with unicode properly.
made sv_bigcoords default except in quake. hexen2 kinda needs it for bsp angle precision.
fixed nq server to not stall weirdly on map changes.
fixed qwprogs svc_cdtrack not bugging out with nq clients on the server.
fixed restart command to load the last map run by the server, instead of start.bsp (when idle)
optimised d3d9 renderer a little. now uses less draw calls, especially with complex scenes. seems to get higher framerates than opengl now.
fixed d3d9 renderer to not bug out quite so much when run fullscreen (shader subsystem is now correctly initialised).
fixed a couple of bugs from font change. also now supports utf-8 in a few more places.
r_editlights_reload no longer generates rtlights inside the void. this resolves a few glitches (but should also help framerates a little).
fixed so corona-only lights won't generate shadowmaps and waste lots of time.
removed lots of #defines from qclib. I should never have made them in the first place, but I was lazy. obviously there's more left that I cba to remove yet.
fixed nested calls with variant-vectors. this fixes csaddon's light editor.
fixed qcc hc calling conventions using redundant stores.
disabled keywords can still be used by using __keyword instead.
fixed ftegccgui grep feature.
fixed motionless-dog qcc bug.
tweaked qcc warnings a little. -Wall is now a viable setting. you should be able to fix all those warnings.
fixed qw svc_intermission + dpp5+ clients bug.
fixed annoying spam about disconnecting in hexen2.
rewrote status command a little to cope with ipv6 addresses more gracefully
fixed significant stall when hibernating/debugging a server with a player sitting on it.
fixed truelightning.
fixed rocketlight overriding pflags.
fixed torches vanishing on vid_restart.
fixed issue with decal scaling.
fixed findentityfield builtin.
fixed fteqcc issue with ptr+1
fixed use of arrays inside class functions.
fixed/implemented fteqcc emulation of pointer opcodes.
added __inout keyword to fteqcc, so that it doesn't feel so horrendous.
fixed sizeof(*foo)
fixed *struct = struct;
fixed recursive structs.
fixed fteqcc warning report.
fixed sdl2 controller support, hopefully.
attempted to implement xinput, including per-player audio playback.
slightly fixed relaxed attitude to mouse focus when running fullscreen.
fixed weird warnings/errors with 'ent.arrayhead' terms. now generates sane errors.
implemented bindmaps (for csqc).
fixed crashing bug with eprint builtin.
implemented subset of music_playlist_* functionality. significant changes to music playback.
fixed some more dpcsqc compat.
fixed binds menu. now displays and accepts modifiers.
fixed issues with huge lightmaps.
fixed protocol determinism with dp clients connecting to fte servers. the initial getchallenge request now inhibits vanilla nq connection requests.
implemented support for 'dupe' userinfo key, allowing clients to request client->server packet duplication. should probably queue them tbh.
implemented sv_saveentfile command.
fixed resume after breaking inside a stepped-over function.
fixed erroneous footer after debugging.
(I wonder just how many things I broke with these fixes)

git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4946 fc73d0e0-1445-4013-8a0c-d673dee63da5
2015-07-26 10:56:18 +00:00

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/*
Copyright (C) 1996-1997 Id Software, Inc.
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 2
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.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
// snd_mix.c -- portable code to mix sounds for snd_dma.c
#include "quakedef.h"
#define PAINTBUFFER_SIZE 2048
float voicevolumemod = 1;
portable_samplegroup_t paintbuffer[PAINTBUFFER_SIZE];
int *snd_p, snd_vol;
short *snd_out;
void S_TransferPaintBuffer(soundcardinfo_t *sc, int endtime)
{
unsigned int out_idx;
unsigned int count;
unsigned int outlimit;
int *p;
int val;
// int snd_vol;
short *pbuf;
int i, numc;
p = (int *) paintbuffer;
count = (endtime - sc->paintedtime) * sc->sn.numchannels;
outlimit = sc->sn.samples;
out_idx = (sc->paintedtime * sc->sn.numchannels) % outlimit;
// snd_vol = (volume.value*voicevolumemod)*256;
numc = sc->sn.numchannels;
pbuf = sc->Lock(sc, &out_idx);
if (!pbuf)
return;
if (sc->sn.samplebits == 16)
{
short *out = (short *) pbuf;
while (count)
{
for (i = 0; i < numc; i++)
{
val = *p;// * snd_vol) >> 8;
p++;
if (val > 0x7fff)
val = 0x7fff;
else if (val < (short)0x8000)
val = (short)0x8000;
out[out_idx] = val;
out_idx = (out_idx + 1) % outlimit;
}
p += MAXSOUNDCHANNELS - numc;
count -= numc;
}
}
else if (sc->sn.samplebits == 8)
{
unsigned char *out = (unsigned char *) pbuf;
while (count)
{
for (i = 0; i < numc; i++)
{
val = *p;// * snd_vol) >> 8;
p++;
if (val > 0x7fff)
val = 0x7fff;
else if (val < (short)0x8000)
val = (short)0x8000;
out[out_idx] = (val>>8) + 128;
out_idx = (out_idx + 1) % outlimit;
}
p += MAXSOUNDCHANNELS - numc;
count -= numc;
}
}
sc->Unlock(sc, pbuf);
}
/*
===============================================================================
CHANNEL MIXING
===============================================================================
*/
static void SND_PaintChannel8_O2I1 (channel_t *ch, sfxcache_t *sc, int starttime, int count);
static void SND_PaintChannel16_O2I1 (channel_t *ch, sfxcache_t *sc, int starttime, int count);
static void SND_PaintChannel8_O4I1 (channel_t *ch, sfxcache_t *sc, int count);
static void SND_PaintChannel16_O4I1 (channel_t *ch, sfxcache_t *sc, int count);
static void SND_PaintChannel8_O6I1 (channel_t *ch, sfxcache_t *sc, int count);
static void SND_PaintChannel16_O6I1 (channel_t *ch, sfxcache_t *sc, int count);
static void SND_PaintChannel8_O8I1 (channel_t *ch, sfxcache_t *sc, int count);
static void SND_PaintChannel16_O8I1 (channel_t *ch, sfxcache_t *sc, int count);
static void SND_PaintChannel8_O2I2 (channel_t *ch, sfxcache_t *sc, int starttime, int count);
static void SND_PaintChannel16_O2I2 (channel_t *ch, sfxcache_t *sc, int starttime, int count);
//NOTE: MAY NOT CALL SYS_ERROR
void S_PaintChannels(soundcardinfo_t *sc, int endtime)
{
int i;
int end;
channel_t *ch;
sfxcache_t scachebuf;
sfxcache_t *scache;
sfx_t *s;
int ltime, count;
int avail;
unsigned int maxlen = ruleset_allow_overlongsounds.ival?0xffffffffu>>PITCHSHIFT:snd_speed*20;
while (sc->paintedtime < endtime)
{
// if paintbuffer is smaller than DMA buffer
end = endtime;
if (endtime - sc->paintedtime > PAINTBUFFER_SIZE)
end = sc->paintedtime + PAINTBUFFER_SIZE;
// clear the paint buffer
Q_memset(paintbuffer, 0, (end - sc->paintedtime) * sizeof(portable_samplegroup_t));
// paint in the channels.
ch = sc->channel;
for (i=0; i<sc->total_chans ; i++, ch++)
{
s = ch->sfx;
if (!s || s->loadstate == SLS_LOADING)
continue;
if (!ch->vol[0] && !ch->vol[1] && !ch->vol[2] && !ch->vol[3] && !ch->vol[4] && !ch->vol[5])
{
//does it still make a sound if it cannot be heard?...
//technically no...
//this code is hacky.
if (!s->decoder.decodedata && s->decoder.buf)
{
scache = s->decoder.buf;
ch->pos += (end-sc->paintedtime)*ch->rate;
if (ch->pos > scache->length)
{
ch->pos = 0;
if (scache->loopstart != -1)
ch->pos = scache->loopstart<<PITCHSHIFT;
else if (!(ch->flags & CF_FORCELOOP))
{
ch->sfx = NULL;
if (s->decoder.ended)
{
if (!S_IsPlayingSomewhere(s))
s->decoder.ended(s);
}
}
}
}
continue;
}
ltime = sc->paintedtime;
while (ltime < end)
{
if (s->decoder.decodedata)
scache = s->decoder.decodedata(s, &scachebuf, ch->pos>>PITCHSHIFT, 1 + (((end - ltime) * ch->rate)>>PITCHSHIFT)); /*1 for luck - balances audio termination below*/
else
scache = s->decoder.buf;
if (!scache)
{
ch->sfx = NULL;
break;
}
// find how many samples till the sample ends (clamp max length)
avail = scache->length;
if (avail > maxlen)
avail = snd_speed*10;
avail = (((int)(scache->soundoffset + avail)<<PITCHSHIFT) - ch->pos) / ch->rate;
// mix the smaller of how much is available or the time left
count = min(avail, end - ltime);
if (avail < 0)
{
Sys_Printf("sound already past end of buffer\n");
avail = 0;
count = 0;
}
if (count > 0)
{
if (ch->pos < 0) //sounds with a pos of 0 are delay-start sounds
{
//don't progress past 0, so it actually starts properly at the right time with no clicks or anything
if (count > (-ch->pos+255)>>PITCHSHIFT)
count = ((-ch->pos+255)>>PITCHSHIFT);
ltime += count;
ch->pos += count*ch->rate;
continue;
}
if (scache->width == 1)
{
if (scache->numchannels==2)
SND_PaintChannel8_O2I2(ch, scache, ltime-sc->paintedtime, count);
else if (sc->sn.numchannels <= 2)
SND_PaintChannel8_O2I1(ch, scache, ltime-sc->paintedtime, count);
else if (sc->sn.numchannels <= 4)
SND_PaintChannel8_O4I1(ch, scache, count);
else if (sc->sn.numchannels <= 6)
SND_PaintChannel8_O6I1(ch, scache, count);
else
SND_PaintChannel8_O8I1(ch, scache, count);
}
else if (scache->width == 2)
{
if (scache->numchannels==2)
SND_PaintChannel16_O2I2(ch, scache, ltime-sc->paintedtime, count);
else if (sc->sn.numchannels <= 2)
SND_PaintChannel16_O2I1(ch, scache, ltime-sc->paintedtime, count);
else if (sc->sn.numchannels <= 4)
SND_PaintChannel16_O4I1(ch, scache, count);
else if (sc->sn.numchannels <= 6)
SND_PaintChannel16_O6I1(ch, scache, count);
else
SND_PaintChannel16_O8I1(ch, scache, count);
}
ltime += count;
ch->pos += ch->rate * count;
}
if (count == avail)
{
if (scache->loopstart != -1) /*some wavs contain a loop offset directly in the sound file, such samples loop even if a non-looping builtin was used*/
{
if (scache->length <= scache->loopstart)
break;
ch->pos &= ~((-1)<<PITCHSHIFT); /*clear out all but the subsample offset*/
ch->pos += scache->loopstart<<PITCHSHIFT;
if (!scache->length)
{
scache->loopstart=-1;
break;
}
}
else if ((ch->flags & CF_FORCELOOP) && scache->length) /*(static)channels which are explicitly looping always loop from the start*/
{
/*restart it*/
ch->pos = 0;
}
else
{ // channel just stopped
ch->sfx = NULL;
if (s->decoder.ended)
{
if (!S_IsPlayingSomewhere(s))
s->decoder.ended(s);
}
break;
}
}
}
}
// transfer out according to DMA format
S_TransferPaintBuffer(sc, end);
sc->paintedtime = end;
}
}
static void SND_PaintChannel8_O2I1 (channel_t *ch, sfxcache_t *sc, int starttime, int count)
{
int data;
signed char *sfx;
int i;
unsigned int pos = ch->pos-(sc->soundoffset<<PITCHSHIFT);
if (ch->rate != (1<<PITCHSHIFT))
{
sfx = (signed char *)sc->data;
for (i=0 ; i<count ; i++)
{
data = sfx[pos>>PITCHSHIFT];
pos += ch->rate;
paintbuffer[starttime+i].s[0] += ch->vol[0] * data;
paintbuffer[starttime+i].s[1] += ch->vol[1] * data;
}
}
else
{
sfx = (signed char *)sc->data + (pos>>PITCHSHIFT);
for (i=0 ; i<count ; i++)
{
data = sfx[i];
paintbuffer[starttime+i].s[0] += ch->vol[0] * data;
paintbuffer[starttime+i].s[1] += ch->vol[1] * data;
}
}
}
static void SND_PaintChannel8_O2I2 (channel_t *ch, sfxcache_t *sc, int starttime, int count)
{
// int data;
signed char *sfx;
int i;
unsigned int pos = ch->pos-(sc->soundoffset<<PITCHSHIFT);
if (ch->rate != (1<<PITCHSHIFT))
{
sfx = (signed char *)sc->data;
for (i=0 ; i<count ; i++)
{
paintbuffer[starttime+i].s[0] += ch->vol[0] * sfx[(pos>>(PITCHSHIFT-1))&~1];
paintbuffer[starttime+i].s[1] += ch->vol[1] * sfx[(pos>>(PITCHSHIFT-1))|1];
pos += ch->rate;
}
}
else
{
sfx = (signed char *)sc->data + (pos>>PITCHSHIFT)*2;
for (i=0 ; i<count ; i++)
{
paintbuffer[starttime+i].s[0] += ch->vol[0] * sfx[(i<<1)];
paintbuffer[starttime+i].s[1] += ch->vol[1] * sfx[(i<<1)+1];
}
}
}
static void SND_PaintChannel8_O4I1 (channel_t *ch, sfxcache_t *sc, int count)
{
signed char *sfx;
int i;
unsigned int pos = ch->pos-(sc->soundoffset<<PITCHSHIFT);
if (ch->rate != (1<<PITCHSHIFT))
{
signed char data;
sfx = (signed char *)sc->data;
for (i=0 ; i<count ; i++)
{
data = sfx[pos>>PITCHSHIFT];
pos += ch->rate;
paintbuffer[i].s[0] += ch->vol[0] * data;
paintbuffer[i].s[1] += ch->vol[1] * data;
paintbuffer[i].s[2] += ch->vol[2] * data;
paintbuffer[i].s[3] += ch->vol[3] * data;
}
}
else
{
sfx = (signed char *)sc->data + (pos>>PITCHSHIFT);
for (i=0 ; i<count ; i++)
{
paintbuffer[i].s[0] += ch->vol[0] * sfx[i];
paintbuffer[i].s[1] += ch->vol[1] * sfx[i];
paintbuffer[i].s[2] += ch->vol[2] * sfx[i];
paintbuffer[i].s[3] += ch->vol[3] * sfx[i];
}
}
}
static void SND_PaintChannel8_O6I1 (channel_t *ch, sfxcache_t *sc, int count)
{
signed char *sfx;
int i;
unsigned int pos = ch->pos-(sc->soundoffset<<PITCHSHIFT);
if (ch->rate != (1<<PITCHSHIFT))
{
signed char data;
sfx = (signed char *)sc->data;
for (i=0 ; i<count ; i++)
{
data = sfx[pos>>PITCHSHIFT];
pos += ch->rate;
paintbuffer[i].s[0] += ch->vol[0] * data;
paintbuffer[i].s[1] += ch->vol[1] * data;
paintbuffer[i].s[2] += ch->vol[2] * data;
paintbuffer[i].s[3] += ch->vol[3] * data;
paintbuffer[i].s[4] += ch->vol[4] * data;
paintbuffer[i].s[5] += ch->vol[5] * data;
}
}
else
{
sfx = (signed char *)sc->data + (pos>>PITCHSHIFT);
for (i=0 ; i<count ; i++)
{
paintbuffer[i].s[0] += ch->vol[0] * sfx[i];
paintbuffer[i].s[1] += ch->vol[1] * sfx[i];
paintbuffer[i].s[2] += ch->vol[2] * sfx[i];
paintbuffer[i].s[3] += ch->vol[3] * sfx[i];
paintbuffer[i].s[4] += ch->vol[4] * sfx[i];
paintbuffer[i].s[5] += ch->vol[5] * sfx[i];
}
}
}
static void SND_PaintChannel8_O8I1 (channel_t *ch, sfxcache_t *sc, int count)
{
signed char *sfx;
int i;
unsigned int pos = ch->pos-(sc->soundoffset<<PITCHSHIFT);
if (ch->rate != (1<<PITCHSHIFT))
{
signed char data;
sfx = (signed char *)sc->data;
for (i=0 ; i<count ; i++)
{
data = sfx[pos>>PITCHSHIFT];
pos += ch->rate;
paintbuffer[i].s[0] += ch->vol[0] * data;
paintbuffer[i].s[1] += ch->vol[1] * data;
paintbuffer[i].s[2] += ch->vol[2] * data;
paintbuffer[i].s[3] += ch->vol[3] * data;
paintbuffer[i].s[4] += ch->vol[4] * data;
paintbuffer[i].s[5] += ch->vol[5] * data;
paintbuffer[i].s[6] += ch->vol[6] * data;
paintbuffer[i].s[7] += ch->vol[7] * data;
}
}
else
{
sfx = (signed char *)sc->data + (pos>>PITCHSHIFT);
for (i=0 ; i<count ; i++)
{
paintbuffer[i].s[0] += ch->vol[0] * sfx[i];
paintbuffer[i].s[1] += ch->vol[1] * sfx[i];
paintbuffer[i].s[2] += ch->vol[2] * sfx[i];
paintbuffer[i].s[3] += ch->vol[3] * sfx[i];
paintbuffer[i].s[4] += ch->vol[4] * sfx[i];
paintbuffer[i].s[5] += ch->vol[5] * sfx[i];
paintbuffer[i].s[6] += ch->vol[6] * sfx[i];
paintbuffer[i].s[7] += ch->vol[7] * sfx[i];
}
}
}
static void SND_PaintChannel16_O2I1 (channel_t *ch, sfxcache_t *sc, int starttime, int count)
{
int data;
int left, right;
int leftvol, rightvol;
signed short *sfx;
int i;
unsigned int pos = ch->pos-(sc->soundoffset<<PITCHSHIFT);
leftvol = ch->vol[0];
rightvol = ch->vol[1];
if (ch->rate != (1<<PITCHSHIFT))
{
signed short data;
sfx = (signed short *)sc->data;
for (i=0 ; i<count ; i++)
{
data = sfx[pos>>PITCHSHIFT];
pos += ch->rate;
paintbuffer[starttime+i].s[0] += (leftvol * data)>>8;
paintbuffer[starttime+i].s[1] += (rightvol * data)>>8;
}
}
else
{
sfx = (signed short *)sc->data + (pos>>PITCHSHIFT);
for (i=0 ; i<count ; i++)
{
data = sfx[i];
left = (data * leftvol) >> 8;
right = (data * rightvol) >> 8;
paintbuffer[starttime+i].s[0] += left;
paintbuffer[starttime+i].s[1] += right;
}
}
}
static void SND_PaintChannel16_O2I2 (channel_t *ch, sfxcache_t *sc, int starttime, int count)
{
int leftvol, rightvol;
signed short *sfx;
int i;
unsigned int pos = ch->pos-(sc->soundoffset<<PITCHSHIFT);
leftvol = ch->vol[0];
rightvol = ch->vol[1];
if (ch->rate != (1<<PITCHSHIFT))
{
signed short l, r;
sfx = (signed short *)sc->data;
for (i=0 ; i<count ; i++)
{
l = sfx[(pos>>(PITCHSHIFT-1))&~1];
r = sfx[(pos>>(PITCHSHIFT-1))|1];
pos += ch->rate;
paintbuffer[starttime+i].s[0] += (ch->vol[0] * l)>>8;
paintbuffer[starttime+i].s[1] += (ch->vol[1] * r)>>8;
}
}
else
{
sfx = (signed short *)sc->data + (pos>>PITCHSHIFT)*2;
for (i=0 ; i<count ; i++)
{
paintbuffer[starttime+i].s[0] += (*sfx++ * leftvol) >> 8;
paintbuffer[starttime+i].s[1] += (*sfx++ * rightvol) >> 8;
}
}
}
static void SND_PaintChannel16_O4I1 (channel_t *ch, sfxcache_t *sc, int count)
{
int vol[4];
signed short *sfx;
int i;
unsigned int pos = ch->pos-(sc->soundoffset<<PITCHSHIFT);
vol[0] = ch->vol[0];
vol[1] = ch->vol[1];
vol[2] = ch->vol[2];
vol[3] = ch->vol[3];
if (ch->rate != (1<<PITCHSHIFT))
{
signed short data;
sfx = (signed short *)sc->data;
for (i=0 ; i<count ; i++)
{
data = sfx[pos>>PITCHSHIFT];
pos += ch->rate;
paintbuffer[i].s[0] += (vol[0] * data)>>8;
paintbuffer[i].s[1] += (vol[1] * data)>>8;
paintbuffer[i].s[2] += (vol[2] * data)>>8;
paintbuffer[i].s[3] += (vol[3] * data)>>8;
}
}
else
{
sfx = (signed short *)sc->data + pos;
for (i=0 ; i<count ; i++)
{
paintbuffer[i].s[0] += (sfx[i] * vol[0]) >> 8;
paintbuffer[i].s[1] += (sfx[i] * vol[1]) >> 8;
paintbuffer[i].s[2] += (sfx[i] * vol[2]) >> 8;
paintbuffer[i].s[3] += (sfx[i] * vol[3]) >> 8;
}
}
}
static void SND_PaintChannel16_O6I1 (channel_t *ch, sfxcache_t *sc, int count)
{
int vol[6];
signed short *sfx;
int i;
unsigned int pos = ch->pos-(sc->soundoffset<<PITCHSHIFT);
vol[0] = ch->vol[0];
vol[1] = ch->vol[1];
vol[2] = ch->vol[2];
vol[3] = ch->vol[3];
vol[4] = ch->vol[4];
vol[5] = ch->vol[5];
if (ch->rate != (1<<PITCHSHIFT))
{
signed short data;
sfx = (signed short *)sc->data;
for (i=0 ; i<count ; i++)
{
data = sfx[pos>>PITCHSHIFT];
pos += ch->rate;
paintbuffer[i].s[0] += (vol[0] * data)>>8;
paintbuffer[i].s[1] += (vol[1] * data)>>8;
paintbuffer[i].s[2] += (vol[2] * data)>>8;
paintbuffer[i].s[3] += (vol[3] * data)>>8;
paintbuffer[i].s[4] += (vol[4] * data)>>8;
paintbuffer[i].s[5] += (vol[5] * data)>>8;
}
}
else
{
sfx = (signed short *)sc->data + (pos>>PITCHSHIFT);
for (i=0 ; i<count ; i++)
{
paintbuffer[i].s[0] += (sfx[i] * vol[0]) >> 8;
paintbuffer[i].s[1] += (sfx[i] * vol[1]) >> 8;
paintbuffer[i].s[2] += (sfx[i] * vol[2]) >> 8;
paintbuffer[i].s[3] += (sfx[i] * vol[3]) >> 8;
paintbuffer[i].s[4] += (sfx[i] * vol[4]) >> 8;
paintbuffer[i].s[5] += (sfx[i] * vol[5]) >> 8;
}
}
}
static void SND_PaintChannel16_O8I1 (channel_t *ch, sfxcache_t *sc, int count)
{
int vol[8];
signed short *sfx;
int i;
unsigned int pos = ch->pos-(sc->soundoffset<<PITCHSHIFT);
vol[0] = ch->vol[0];
vol[1] = ch->vol[1];
vol[2] = ch->vol[2];
vol[3] = ch->vol[3];
vol[4] = ch->vol[4];
vol[5] = ch->vol[5];
vol[6] = ch->vol[6];
vol[7] = ch->vol[7];
if (ch->rate != (1<<PITCHSHIFT))
{
signed short data;
sfx = (signed short *)sc->data;
for (i=0 ; i<count ; i++)
{
data = sfx[pos>>PITCHSHIFT];
pos += ch->rate;
paintbuffer[i].s[0] += (vol[0] * data)>>8;
paintbuffer[i].s[1] += (vol[1] * data)>>8;
paintbuffer[i].s[2] += (vol[2] * data)>>8;
paintbuffer[i].s[3] += (vol[3] * data)>>8;
paintbuffer[i].s[4] += (vol[4] * data)>>8;
paintbuffer[i].s[5] += (vol[5] * data)>>8;
paintbuffer[i].s[6] += (vol[6] * data)>>8;
paintbuffer[i].s[7] += (vol[7] * data)>>8;
}
}
else
{
sfx = (signed short *)sc->data + (pos>>PITCHSHIFT);
for (i=0 ; i<count ; i++)
{
paintbuffer[i].s[0] += (sfx[i] * vol[0]) >> 8;
paintbuffer[i].s[1] += (sfx[i] * vol[1]) >> 8;
paintbuffer[i].s[2] += (sfx[i] * vol[2]) >> 8;
paintbuffer[i].s[3] += (sfx[i] * vol[3]) >> 8;
paintbuffer[i].s[4] += (sfx[i] * vol[4]) >> 8;
paintbuffer[i].s[5] += (sfx[i] * vol[5]) >> 8;
paintbuffer[i].s[6] += (sfx[i] * vol[6]) >> 8;
paintbuffer[i].s[7] += (sfx[i] * vol[7]) >> 8;
}
}
}
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