a77bd67602
r4196 | acceptthis | 2013-02-12 19:06:07 +0000 (Tue, 12 Feb 2013) | 9 lines split in/out client frames, so that we can cope with separate packet/movement sequences for nq+prediction. Make default ports a little more explicit. interpolate input frames. should make things smoother when the input rate does not match video rate. fix centering of crosshairs make sure skins are flushed properly on vid_restart, so 24bit skins don't get messed up. keep sounds ticking even when inaudible. qc addressable block now has a max of 2gb. .__variant works as a function argument. NQ clients now receive player physics consistant with QuakeWorld. ------------------------------------------------------------------------ git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4194 fc73d0e0-1445-4013-8a0c-d673dee63da5
709 lines
18 KiB
C
709 lines
18 KiB
C
/*
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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// snd_mix.c -- portable code to mix sounds for snd_dma.c
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#include "quakedef.h"
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#define PAINTBUFFER_SIZE 2048
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float voicevolumemod = 1;
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portable_samplegroup_t paintbuffer[PAINTBUFFER_SIZE];
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int *snd_p, snd_vol;
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short *snd_out;
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void S_TransferPaintBuffer(soundcardinfo_t *sc, int endtime)
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{
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unsigned int out_idx;
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unsigned int count;
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unsigned int outlimit;
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int *p;
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int val;
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int snd_vol;
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short *pbuf;
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int i, numc;
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p = (int *) paintbuffer;
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count = (endtime - sc->paintedtime) * sc->sn.numchannels;
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outlimit = sc->sn.samples;
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out_idx = (sc->paintedtime * sc->sn.numchannels) % outlimit;
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snd_vol = (volume.value*voicevolumemod)*256;
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numc = sc->sn.numchannels;
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pbuf = sc->Lock(sc, &out_idx);
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if (!pbuf)
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return;
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if (sc->sn.samplebits == 16)
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{
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short *out = (short *) pbuf;
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while (count)
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{
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for (i = 0; i < numc; i++)
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{
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val = (*p * snd_vol) >> 8;
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p++;
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if (val > 0x7fff)
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val = 0x7fff;
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else if (val < (short)0x8000)
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val = (short)0x8000;
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out[out_idx] = val;
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out_idx = (out_idx + 1) % outlimit;
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}
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p += MAXSOUNDCHANNELS - numc;
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count -= numc;
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}
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}
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else if (sc->sn.samplebits == 8)
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{
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unsigned char *out = (unsigned char *) pbuf;
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while (count)
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{
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for (i = 0; i < numc; i++)
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{
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val = (*p * snd_vol) >> 8;
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p++;
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if (val > 0x7fff)
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val = 0x7fff;
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else if (val < (short)0x8000)
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val = (short)0x8000;
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out[out_idx] = (val>>8) + 128;
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out_idx = (out_idx + 1) % outlimit;
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}
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p += MAXSOUNDCHANNELS - numc;
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count -= numc;
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}
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}
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sc->Unlock(sc, pbuf);
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}
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/*
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===============================================================================
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CHANNEL MIXING
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===============================================================================
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*/
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void SND_PaintChannelFrom8 (channel_t *ch, sfxcache_t *sc, int endtime);
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void SND_PaintChannelFrom16 (channel_t *ch, sfxcache_t *sc, int endtime);
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void SND_PaintChannelFrom8_4Speaker (channel_t *ch, sfxcache_t *sc, int count);
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void SND_PaintChannelFrom16_4Speaker (channel_t *ch, sfxcache_t *sc, int count);
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void SND_PaintChannelFrom8_6Speaker (channel_t *ch, sfxcache_t *sc, int count);
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void SND_PaintChannelFrom16_6Speaker (channel_t *ch, sfxcache_t *sc, int count);
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void SND_PaintChannelFrom8_8Speaker (channel_t *ch, sfxcache_t *sc, int count);
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void SND_PaintChannelFrom16_8Speaker (channel_t *ch, sfxcache_t *sc, int count);
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void SND_PaintChannelFrom8Stereo (channel_t *ch, sfxcache_t *sc, int count);
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void SND_PaintChannelFrom16Stereo (channel_t *ch, sfxcache_t *sc, int count);
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//NOTE: MAY NOT CALL SYS_ERROR
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void S_PaintChannels(soundcardinfo_t *sc, int endtime)
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{
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int i;
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int end;
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channel_t *ch;
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sfxcache_t scachebuf;
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sfxcache_t *scache;
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sfx_t *s;
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int ltime, count;
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int avail;
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unsigned int maxlen = ruleset_allow_overlongsounds.ival?0xffffffffu>>PITCHSHIFT:snd_speed*20;
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while (sc->paintedtime < endtime)
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{
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// if paintbuffer is smaller than DMA buffer
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end = endtime;
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if (endtime - sc->paintedtime > PAINTBUFFER_SIZE)
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end = sc->paintedtime + PAINTBUFFER_SIZE;
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// clear the paint buffer
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Q_memset(paintbuffer, 0, (end - sc->paintedtime) * sizeof(portable_samplegroup_t));
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// paint in the channels.
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ch = sc->channel;
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for (i=0; i<sc->total_chans ; i++, ch++)
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{
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s = ch->sfx;
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if (!s)
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continue;
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if (!ch->vol[0] && !ch->vol[1] && !ch->vol[2] && !ch->vol[3] && !ch->vol[4] && !ch->vol[5])
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{
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//does it still make a sound if it cannot be heard?...
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//technically no...
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//this code is hacky.
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if (!s->decoder.decodedata && s->decoder.buf)
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{
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scache = s->decoder.buf;
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ch->pos += (end-sc->paintedtime)*ch->rate;
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if (ch->pos > scache->length)
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{
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ch->pos = 0;
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if (scache->loopstart != -1)
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ch->pos = scache->loopstart<<PITCHSHIFT;
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else if (!ch->looping)
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{
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ch->sfx = NULL;
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if (s->decoder.abort)
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{
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if (!S_IsPlayingSomewhere(s))
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s->decoder.abort(s);
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}
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}
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}
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}
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continue;
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}
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ltime = sc->paintedtime;
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while (ltime < end)
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{
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if (s->decoder.decodedata)
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scache = s->decoder.decodedata(s, &scachebuf, ch->pos>>PITCHSHIFT, 1 + (((end - ltime) * ch->rate)>>PITCHSHIFT)); /*1 for luck - balances audio termination below*/
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else
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scache = s->decoder.buf;
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if (!scache)
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{
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ch->sfx = NULL;
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break;
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}
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// find how many samples till the sample ends (clamp max length)
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avail = scache->length;
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if (avail > maxlen)
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avail = snd_speed*10;
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avail = (((int)(scache->soundoffset + avail)<<PITCHSHIFT) - ch->pos) / ch->rate;
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// mix the smaller of how much is available or the time left
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count = min(avail, end - ltime);
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if (avail < 0)
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{
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Sys_Printf("sound already past end of buffer\n");
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avail = 0;
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count = 0;
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}
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if (count > 0)
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{
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if (ch->pos < 0) //sounds with a pos of 0 are delay-start sounds
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{
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//don't progress past 0, so it actually starts properly at the right time with no clicks or anything
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if (count > (-ch->pos+255)>>PITCHSHIFT)
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count = ((-ch->pos+255)>>PITCHSHIFT);
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ltime += count;
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ch->pos += count*ch->rate;
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continue;
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}
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if (scache->width == 1)
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{
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if (scache->numchannels==2)
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SND_PaintChannelFrom8Stereo(ch, scache, count);
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else if (sc->sn.numchannels == 8)
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SND_PaintChannelFrom8_8Speaker(ch, scache, count);
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else if (sc->sn.numchannels == 6)
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SND_PaintChannelFrom8_6Speaker(ch, scache, count);
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else if (sc->sn.numchannels == 4)
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SND_PaintChannelFrom8_4Speaker(ch, scache, count);
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else
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SND_PaintChannelFrom8(ch, scache, count);
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}
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else
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{
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if (scache->numchannels==2)
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SND_PaintChannelFrom16Stereo(ch, scache, count);
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else if (sc->sn.numchannels == 8)
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SND_PaintChannelFrom16_8Speaker(ch, scache, count);
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else if (sc->sn.numchannels == 6)
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SND_PaintChannelFrom16_6Speaker(ch, scache, count);
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else if (sc->sn.numchannels == 4)
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SND_PaintChannelFrom16_4Speaker(ch, scache, count);
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else
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SND_PaintChannelFrom16(ch, scache, count);
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}
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ltime += count;
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ch->pos += ch->rate * count;
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}
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if (count == avail)
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{
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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*/
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{
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if (scache->length <= scache->loopstart)
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break;
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ch->pos &= ~((-1)<<PITCHSHIFT); /*clear out all but the subsample offset*/
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ch->pos += scache->loopstart<<PITCHSHIFT;
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if (!scache->length)
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{
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scache->loopstart=-1;
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break;
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}
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}
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else if (ch->looping && scache->length) /*(static)channels which are explicitly looping always loop from the start*/
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{
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/*restart it*/
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ch->pos = 0;
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}
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else
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{ // channel just stopped
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ch->sfx = NULL;
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if (s->decoder.abort)
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{
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if (!S_IsPlayingSomewhere(s))
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s->decoder.abort(s);
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}
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break;
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}
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}
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}
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}
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// transfer out according to DMA format
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S_TransferPaintBuffer(sc, end);
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sc->paintedtime = end;
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}
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}
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void SND_PaintChannelFrom8 (channel_t *ch, sfxcache_t *sc, int count)
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{
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int data;
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signed char *sfx;
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int i;
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unsigned int pos = ch->pos-(sc->soundoffset<<PITCHSHIFT);
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if (ch->vol[0] > 255)
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ch->vol[0] = 255;
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if (ch->vol[1] > 255)
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ch->vol[1] = 255;
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if (ch->rate != (1<<PITCHSHIFT))
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{
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sfx = (signed char *)sc->data;
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for (i=0 ; i<count ; i++)
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{
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data = sfx[pos>>PITCHSHIFT];
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pos += ch->rate;
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paintbuffer[i].s[0] += ch->vol[0] * data;
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paintbuffer[i].s[1] += ch->vol[1] * data;
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}
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}
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else
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{
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sfx = (signed char *)sc->data + (pos>>PITCHSHIFT);
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for (i=0 ; i<count ; i++)
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{
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data = sfx[i];
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paintbuffer[i].s[0] += ch->vol[0] * data;
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paintbuffer[i].s[1] += ch->vol[1] * data;
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}
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}
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}
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void SND_PaintChannelFrom8Stereo (channel_t *ch, sfxcache_t *sc, int count)
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{
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// int data;
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signed char *sfx;
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int i;
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unsigned int pos = ch->pos-(sc->soundoffset<<PITCHSHIFT);
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if (ch->vol[0] > 255)
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ch->vol[0] = 255;
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if (ch->vol[1] > 255)
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ch->vol[1] = 255;
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if (ch->rate != (1<<PITCHSHIFT))
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{
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sfx = (signed char *)sc->data;
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for (i=0 ; i<count ; i++)
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{
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paintbuffer[i].s[0] += ch->vol[0] * sfx[(pos>>(PITCHSHIFT-1))&~1];
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paintbuffer[i].s[1] += ch->vol[1] * sfx[(pos>>(PITCHSHIFT-1))|1];
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pos += ch->rate;
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}
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}
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else
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{
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sfx = (signed char *)sc->data + (pos>>PITCHSHIFT)*2;
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for (i=0 ; i<count ; i++)
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{
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paintbuffer[i].s[0] += ch->vol[0] * sfx[(i<<1)];
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paintbuffer[i].s[1] += ch->vol[1] * sfx[(i<<1)+1];
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}
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}
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}
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void SND_PaintChannelFrom8_4Speaker (channel_t *ch, sfxcache_t *sc, int count)
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{
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signed char *sfx;
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int i;
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unsigned int pos = ch->pos-(sc->soundoffset<<PITCHSHIFT);
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if (ch->vol[0] > 255)
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ch->vol[0] = 255;
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if (ch->vol[1] > 255)
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ch->vol[1] = 255;
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if (ch->vol[2] > 255)
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ch->vol[2] = 255;
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if (ch->vol[3] > 255)
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ch->vol[3] = 255;
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if (ch->rate != (1<<PITCHSHIFT))
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{
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signed char data;
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sfx = (signed char *)sc->data;
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for (i=0 ; i<count ; i++)
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{
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data = sfx[pos>>PITCHSHIFT];
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pos += ch->rate;
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paintbuffer[i].s[0] += ch->vol[0] * data;
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paintbuffer[i].s[1] += ch->vol[1] * data;
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paintbuffer[i].s[2] += ch->vol[2] * data;
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paintbuffer[i].s[3] += ch->vol[3] * data;
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}
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}
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else
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{
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sfx = (signed char *)sc->data + (pos>>PITCHSHIFT);
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for (i=0 ; i<count ; i++)
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{
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paintbuffer[i].s[0] += ch->vol[0] * sfx[i];
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paintbuffer[i].s[1] += ch->vol[1] * sfx[i];
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paintbuffer[i].s[2] += ch->vol[2] * sfx[i];
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paintbuffer[i].s[3] += ch->vol[3] * sfx[i];
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}
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}
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}
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void SND_PaintChannelFrom8_6Speaker (channel_t *ch, sfxcache_t *sc, int count)
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{
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signed char *sfx;
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int i;
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unsigned int pos = ch->pos-(sc->soundoffset<<PITCHSHIFT);
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if (ch->vol[0] > 255)
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ch->vol[0] = 255;
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if (ch->vol[1] > 255)
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ch->vol[1] = 255;
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if (ch->vol[2] > 255)
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ch->vol[2] = 255;
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if (ch->vol[3] > 255)
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ch->vol[3] = 255;
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if (ch->vol[4] > 255)
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ch->vol[4] = 255;
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if (ch->vol[5] > 255)
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ch->vol[5] = 255;
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if (ch->rate != (1<<PITCHSHIFT))
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{
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signed char data;
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sfx = (signed char *)sc->data;
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for (i=0 ; i<count ; i++)
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{
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data = sfx[pos>>PITCHSHIFT];
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pos += ch->rate;
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paintbuffer[i].s[0] += ch->vol[0] * data;
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paintbuffer[i].s[1] += ch->vol[1] * data;
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paintbuffer[i].s[2] += ch->vol[2] * data;
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paintbuffer[i].s[3] += ch->vol[3] * data;
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paintbuffer[i].s[4] += ch->vol[4] * data;
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paintbuffer[i].s[5] += ch->vol[5] * data;
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}
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}
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else
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{
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sfx = (signed char *)sc->data + (pos>>PITCHSHIFT);
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for (i=0 ; i<count ; i++)
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{
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paintbuffer[i].s[0] += ch->vol[0] * sfx[i];
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paintbuffer[i].s[1] += ch->vol[1] * sfx[i];
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paintbuffer[i].s[2] += ch->vol[2] * sfx[i];
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paintbuffer[i].s[3] += ch->vol[3] * sfx[i];
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paintbuffer[i].s[4] += ch->vol[4] * sfx[i];
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paintbuffer[i].s[5] += ch->vol[5] * sfx[i];
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}
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}
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}
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void SND_PaintChannelFrom8_8Speaker (channel_t *ch, sfxcache_t *sc, int count)
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{
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signed char *sfx;
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int i;
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unsigned int pos = ch->pos-(sc->soundoffset<<PITCHSHIFT);
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if (ch->vol[0] > 255)
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ch->vol[0] = 255;
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if (ch->vol[1] > 255)
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ch->vol[1] = 255;
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if (ch->vol[2] > 255)
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ch->vol[2] = 255;
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if (ch->vol[3] > 255)
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ch->vol[3] = 255;
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if (ch->vol[4] > 255)
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ch->vol[4] = 255;
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if (ch->vol[5] > 255)
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ch->vol[5] = 255;
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if (ch->vol[6] > 255)
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ch->vol[6] = 255;
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if (ch->vol[7] > 255)
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ch->vol[7] = 255;
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if (ch->rate != (1<<PITCHSHIFT))
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{
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signed char data;
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sfx = (signed char *)sc->data;
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for (i=0 ; i<count ; i++)
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{
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data = sfx[pos>>PITCHSHIFT];
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pos += ch->rate;
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paintbuffer[i].s[0] += ch->vol[0] * data;
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paintbuffer[i].s[1] += ch->vol[1] * data;
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paintbuffer[i].s[2] += ch->vol[2] * data;
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paintbuffer[i].s[3] += ch->vol[3] * data;
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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];
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void SND_PaintChannelFrom16 (channel_t *ch, sfxcache_t *sc, 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[i].s[0] += (leftvol * data)>>8;
|
|
paintbuffer[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[i].s[0] += left;
|
|
paintbuffer[i].s[1] += right;
|
|
}
|
|
}
|
|
}
|
|
|
|
void SND_PaintChannelFrom16Stereo (channel_t *ch, sfxcache_t *sc, 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[i].s[0] += (ch->vol[0] * l)>>8;
|
|
paintbuffer[i].s[1] += (ch->vol[1] * r)>>8;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
sfx = (signed short *)sc->data + (pos>>PITCHSHIFT)*2;
|
|
for (i=0 ; i<count ; i++)
|
|
{
|
|
paintbuffer[i].s[0] += (*sfx++ * leftvol) >> 8;
|
|
paintbuffer[i].s[1] += (*sfx++ * rightvol) >> 8;
|
|
}
|
|
}
|
|
}
|
|
|
|
void SND_PaintChannelFrom16_4Speaker (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;
|
|
}
|
|
}
|
|
}
|
|
|
|
void SND_PaintChannelFrom16_6Speaker (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;
|
|
}
|
|
}
|
|
}
|
|
|
|
void SND_PaintChannelFrom16_8Speaker (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;
|
|
}
|
|
}
|
|
}
|