mirror of
https://github.com/nzp-team/fteqw.git
synced 2024-12-11 21:11:08 +00:00
f1ea7c0c06
some extra macros added. We have a full set of dp te effect builtins (but not parsing them all yet... so not advertising them either). Dedicated server does not build. I need to add some functions to svmodel.c sound should work properly with roq/cin/avi playback. gl_detail should work like in ezquake. there's also a new gl_detalscale cvar bss size should be a small ammount smaller. all the dp te builtins will send something. But fte can't parse all of them yet. git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@1145 fc73d0e0-1445-4013-8a0c-d673dee63da5
836 lines
19 KiB
C
836 lines
19 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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#ifndef NOSOUNDASM
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#define NOSOUNDASM //since channels per sound card went to 6 (portable_samplegroup_t was changed)
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#endif
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#define PAINTBUFFER_SIZE 2048
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portable_samplegroup_t paintbuffer[PAINTBUFFER_SIZE];
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int snd_scaletable[32][256];
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int *snd_p, snd_vol;
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short *snd_out;
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void Snd_WriteLinearBlastStereo16 (soundcardinfo_t *sc);
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#if defined(NOSOUNDASM) || !id386
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void Snd_WriteLinearBlastStereo16 (soundcardinfo_t *sc)
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{
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int i, i2;
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int val;
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for (i=0, i2=0; i<sc->snd_linear_count ; i+=2, i2+=6)
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{
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val = (snd_p[i2]*snd_vol)>>8;
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if (val > 0x7fff)
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snd_out[i] = 0x7fff;
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else if (val < (short)0x8000)
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snd_out[i] = (short)0x8000;
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else
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snd_out[i] = val;
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val = (snd_p[i2+1]*snd_vol)>>8;
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if (val > 0x7fff)
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snd_out[i+1] = 0x7fff;
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else if (val < (short)0x8000)
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snd_out[i+1] = (short)0x8000;
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else
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snd_out[i+1] = val;
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}
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}
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#endif
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void S_TransferStereo16 (soundcardinfo_t *sc, int endtime)
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{
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int lpos;
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int lpaintedtime;
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short *pbuf;
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snd_vol = volume.value*256;
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snd_p = (int *) paintbuffer;
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lpaintedtime = sc->paintedtime;
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pbuf = sc->Lock(sc);
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if (!pbuf)
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return;
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while (lpaintedtime < endtime)
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{
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// handle recirculating buffer issues
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lpos = lpaintedtime % ((sc->sn.samples>>1));
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snd_out = (short *) pbuf + (lpos<<1);
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sc->snd_linear_count = (sc->sn.samples>>1) - lpos;
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if (lpaintedtime + sc->snd_linear_count > endtime)
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sc->snd_linear_count = endtime - lpaintedtime;
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sc->snd_linear_count <<= 1;
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// write a linear blast of samples
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Snd_WriteLinearBlastStereo16 (sc);
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if (sc == sndcardinfo) //only do this for one sound card.
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Media_RecordAudioFrame(snd_out, sc->snd_linear_count);
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snd_p += sc->snd_linear_count;
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lpaintedtime += (sc->snd_linear_count>>1);
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}
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sc->Unlock(sc, pbuf);
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}
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void Snd_WriteLinearBlastStereo16_4Speaker (soundcardinfo_t *sc)
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{
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int i, i2;
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int val;
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for (i=0, i2=0; i<sc->snd_linear_count ; i+=4, i2+=6)
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{
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val = (snd_p[i2]*snd_vol)>>8;
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if (val > 0x7fff)
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snd_out[i] = 0x7fff;
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else if (val < (short)0x8000)
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snd_out[i] = (short)0x8000;
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else
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snd_out[i] = val;
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val = (snd_p[i2+1]*snd_vol)>>8;
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if (val > 0x7fff)
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snd_out[i+1] = 0x7fff;
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else if (val < (short)0x8000)
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snd_out[i+1] = (short)0x8000;
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else
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snd_out[i+1] = val;
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val = (snd_p[i2+2]*snd_vol)>>8;
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if (val > 0x7fff)
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snd_out[i+2] = 0x7fff;
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else if (val < (short)0x8000)
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snd_out[i+2] = (short)0x8000;
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else
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snd_out[i+2] = val;
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val = (snd_p[i2+3]*snd_vol)>>8;
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if (val > 0x7fff)
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snd_out[i+3] = 0x7fff;
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else if (val < (short)0x8000)
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snd_out[i+3] = (short)0x8000;
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else
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snd_out[i+3] = val;
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// snd_out[i+0] = rand();
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// snd_out[i+1] = rand();
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// snd_out[i+2] = rand();
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// snd_out[i+3] = rand();
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}
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}
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void S_Transfer4Speaker16 (soundcardinfo_t *sc, int endtime)
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{
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int lpos;
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int lpaintedtime;
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short *pbuf;
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snd_vol = volume.value*256;
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snd_p = (int *) paintbuffer;
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lpaintedtime = sc->paintedtime;
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pbuf = sc->Lock(sc);
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if (!pbuf)
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return;
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while (lpaintedtime < endtime)
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{
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// handle recirculating buffer issues
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lpos = lpaintedtime % ((sc->sn.samples>>2));
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snd_out = (short *) pbuf + (lpos<<2);
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sc->snd_linear_count = (sc->sn.samples>>2) - lpos;
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if (lpaintedtime + sc->snd_linear_count > endtime)
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sc->snd_linear_count = endtime - lpaintedtime;
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sc->snd_linear_count <<= 2;
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// write a linear blast of samples
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Snd_WriteLinearBlastStereo16_4Speaker (sc);
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if (sc == sndcardinfo) //only do this for one sound card.
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Media_RecordAudioFrame(snd_out, sc->snd_linear_count);
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snd_p += sc->snd_linear_count;
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lpaintedtime += (sc->snd_linear_count>>2);
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}
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sc->Unlock(sc, pbuf);
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}
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void Snd_WriteLinearBlast6Speaker16 (soundcardinfo_t *sc)
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{
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int i;
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int val;
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for (i=0 ; i<sc->snd_linear_count ; i+=6)
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{
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val = (snd_p[i]*snd_vol)>>8;
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if (val > 0x7fff)
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snd_out[i] = 0x7fff;
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else if (val < (short)0x8000)
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snd_out[i] = (short)0x8000;
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else
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snd_out[i] = val;
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val = (snd_p[i+1]*snd_vol)>>8;
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if (val > 0x7fff)
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snd_out[i+1] = 0x7fff;
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else if (val < (short)0x8000)
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snd_out[i+1] = (short)0x8000;
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else
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snd_out[i+1] = val;
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val = (snd_p[i+2]*snd_vol)>>8;
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if (val > 0x7fff)
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snd_out[i+2] = 0x7fff;
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else if (val < (short)0x8000)
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snd_out[i+2] = (short)0x8000;
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else
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snd_out[i+2] = val;
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val = (snd_p[i+3]*snd_vol)>>8;
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if (val > 0x7fff)
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snd_out[i+3] = 0x7fff;
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else if (val < (short)0x8000)
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snd_out[i+3] = (short)0x8000;
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else
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snd_out[i+3] = val;
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val = (snd_p[i+4]*snd_vol)>>8;
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if (val > 0x7fff)
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snd_out[i+4] = 0x7fff;
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else if (val < (short)0x8000)
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snd_out[i+4] = (short)0x8000;
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else
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snd_out[i+4] = val;
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val = (snd_p[i+5]*snd_vol)>>8;
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if (val > 0x7fff)
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snd_out[i+5] = 0x7fff;
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else if (val < (short)0x8000)
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snd_out[i+5] = (short)0x8000;
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else
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snd_out[i+5] = val;
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#if 0
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snd_out[i+0] = rand();
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snd_out[i+1] = rand();
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snd_out[i+2] = rand();
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snd_out[i+3] = rand();
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snd_out[i+4] = rand();
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snd_out[i+5] = rand();
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#elif 0
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snd_out[i+0]=snd_out[i+1]=snd_out[i+2]=snd_out[i+3]=snd_out[i+4]=snd_out[i+5] = rand();
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#endif
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}
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}
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void S_Transfer6Speaker16 (soundcardinfo_t *sc, int endtime)
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{
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int lpos;
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int lpaintedtime;
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short *pbuf;
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snd_vol = volume.value*256;
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snd_p = (int *) paintbuffer;
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lpaintedtime = sc->paintedtime;
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pbuf = sc->Lock(sc);
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if (!pbuf)
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return;
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while (lpaintedtime < endtime)
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{
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// handle recirculating buffer issues
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lpos = (lpaintedtime % ((sc->sn.samples/6)));
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snd_out = (short *) pbuf + (lpos*6);
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sc->snd_linear_count = (sc->sn.samples/6) - lpos;
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if (lpaintedtime + sc->snd_linear_count > endtime)
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sc->snd_linear_count = endtime - lpaintedtime;
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sc->snd_linear_count *= 6;
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// write a linear blast of samples
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Snd_WriteLinearBlast6Speaker16 (sc);
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if (sc == sndcardinfo) //only do this for one sound card.
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Media_RecordAudioFrame(snd_out, sc->snd_linear_count);
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snd_p += sc->snd_linear_count;
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lpaintedtime += (sc->snd_linear_count/6);
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}
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sc->Unlock(sc, pbuf);
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}
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void S_TransferPaintBuffer(soundcardinfo_t *sc, int endtime)
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{
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int out_idx;
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int count;
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int out_mask;
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int *p;
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int step;
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int val;
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int snd_vol;
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short *pbuf;
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if (sc->sn.samplebits == 16 && sc->sn.numchannels == 2)
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{
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S_TransferStereo16 (sc, endtime);
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return;
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}
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if (sc->sn.samplebits == 16 && sc->sn.numchannels == 6)
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{
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S_Transfer6Speaker16 (sc, endtime);
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return;
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}
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if (sc->sn.samplebits == 16 && sc->sn.numchannels == 4)
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{
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S_Transfer4Speaker16 (sc, endtime);
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return;
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}
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p = (int *) paintbuffer;
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count = (endtime - sc->paintedtime) * sc->sn.numchannels;
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out_mask = sc->sn.samples - 1;
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out_idx = sc->paintedtime * sc->sn.numchannels & out_mask;
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if (sc->sn.numchannels>2)
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step = 1;
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else
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step = 3 - sc->sn.numchannels;
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snd_vol = volume.value*256;
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pbuf = sc->Lock(sc);
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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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val = (*p * snd_vol) >> 8;
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p+= step;
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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) & out_mask;
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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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val = (*p * snd_vol) >> 8;
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p+= step;
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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) & out_mask;
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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_PaintChannelFrom8Duel (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_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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void S_PaintChannels(soundcardinfo_t *sc, int endtime)
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{
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int i, j;
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int end;
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channel_t *ch;
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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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// sc->rawstart += sc->paintedtime - sc->oldpaintedtime;
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// sc->oldpaintedtime = sc->paintedtime;
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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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if (!ch->sfx)
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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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continue;
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scache = S_LoadSound (ch->sfx);
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if (!scache)
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continue;
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if (ch->pos > scache->length) //cache was flushed and gamedir changed.
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{
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ch->pos = scache->length;
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ch->end = scache->length;
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}
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ltime = sc->paintedtime;
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if (ch->sfx->decoder)
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{
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int len_diff;
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soundcardinfo_t *sndc;
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#define qmax(x, y) (x>y)?(x):(y)
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len_diff = scache->length;
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// start = ch->end - scache->length;
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// samples = end - start;
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ch->sfx->decoder->decodemore(ch->sfx,
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end - (ch->end - scache->length) + 1);
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// ch->pos + end-ltime+1);
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scache = S_LoadSound (ch->sfx);
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if (!scache)
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continue;
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len_diff = scache->length - len_diff;
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for (sndc = sndcardinfo; sndc; sndc=sndc->next)
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{
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for (j = 0; j < sndc->total_chans; j++)
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if (sndc->channel[j].sfx == ch->sfx) //extend all of these.
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ch->end += len_diff;
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}
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}
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while (ltime < end)
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{ // paint up to end
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if (ch->end < end)
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count = ch->end - ltime;
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else
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count = end - ltime;
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if (count > 0)
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{
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if (ch->pos < 0) //delay the sound a little
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{
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if (count > -ch->pos)
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count = -ch->pos;
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ltime += count;
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ch->pos += count;
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continue;
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}
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/*dmw having fun
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int uw;
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int oldpos = ch->pos;
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int vol = ch->vol[0];
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int rvol = ch->vol[1];
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int end = ch->end;
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ch->vol[1]=0;
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ch->vol[0]/=2;
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for (uw = 0; uw < 5; uw++)
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{
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*/
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if (scache->width == 1)
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{
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if (scache->stereo)
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SND_PaintChannelFrom8Stereo(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);
|
|
}
|
|
else
|
|
{
|
|
if (scache->stereo)
|
|
SND_PaintChannelFrom16Stereo(ch, scache, count);
|
|
else if (sc->sn.numchannels == 6)
|
|
SND_PaintChannelFrom16_6Speaker(ch, scache, count);
|
|
else if (sc->sn.numchannels == 4)
|
|
SND_PaintChannelFrom16_4Speaker(ch, scache, count);
|
|
else
|
|
SND_PaintChannelFrom16(ch, scache, count);
|
|
}
|
|
/* lots of fun
|
|
// ch->vol[0]*=-1;
|
|
ch->vol[1]=0;
|
|
ch->vol[0]/=1.3;
|
|
ch->pos=oldpos-cursndcard->sn.speed*uw*0.06;
|
|
if (ch->pos >= sc->length || ch->pos < 0)
|
|
break;
|
|
|
|
}
|
|
ch->vol[0] = vol;
|
|
ch->vol[1] = rvol;
|
|
ch->pos = oldpos+count;
|
|
*/
|
|
ltime += count;
|
|
}
|
|
|
|
// if at end of loop, restart
|
|
if (ltime >= ch->end)
|
|
{
|
|
if (scache->loopstart >= 0)
|
|
{
|
|
if (scache->length == scache->loopstart)
|
|
{
|
|
// Con_Printf("Looped to end %i\n", ch->pos);
|
|
break; //don't bother restarting it it
|
|
}
|
|
ch->pos = scache->loopstart;
|
|
ch->end = ltime + scache->length - ch->pos;
|
|
if (!scache->length)
|
|
{
|
|
scache->loopstart=-1;
|
|
break;
|
|
}
|
|
}
|
|
else if (ch->looping && scache->length)
|
|
{
|
|
ch->pos = 0;
|
|
ch->end = ltime + scache->length - ch->pos;
|
|
}
|
|
else
|
|
{ // channel just stopped
|
|
s = ch->sfx;
|
|
ch->sfx = NULL;
|
|
if (s->decoder)
|
|
{
|
|
if (!S_IsPlayingSomewhere(s))
|
|
s->decoder->abort(s);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// transfer out according to DMA format
|
|
S_TransferPaintBuffer(sc, end);
|
|
sc->paintedtime = end;
|
|
}
|
|
}
|
|
|
|
void SND_InitScaletable (void)
|
|
{
|
|
int i, j;
|
|
|
|
for (i=0 ; i<32 ; i++)
|
|
for (j=0 ; j<256 ; j++)
|
|
snd_scaletable[i][j] = ((signed char)j) * i * 8;
|
|
}
|
|
|
|
|
|
#if defined(NOSOUNDASM) || !id386
|
|
|
|
void SND_PaintChannelFrom8 (channel_t *ch, sfxcache_t *sc, int count)
|
|
{
|
|
int data;
|
|
int *lscale, *rscale;
|
|
unsigned char *sfx;
|
|
int i;
|
|
|
|
if (ch->vol[0] > 255)
|
|
ch->vol[0] = 255;
|
|
if (ch->vol[1] > 255)
|
|
ch->vol[1] = 255;
|
|
|
|
|
|
lscale = snd_scaletable[ch->vol[0] >> 3];
|
|
rscale = snd_scaletable[ch->vol[1] >> 3];
|
|
sfx = (signed char *)sc->data + ch->pos;
|
|
|
|
for (i=0 ; i<count ; i++)
|
|
{
|
|
data = sfx[i];
|
|
paintbuffer[i].s[0] += lscale[data];
|
|
paintbuffer[i].s[1] += rscale[data];
|
|
}
|
|
|
|
ch->pos += count;
|
|
}
|
|
void SND_PaintChannelFrom8Duel (channel_t *ch, sfxcache_t *sc, int count)
|
|
{
|
|
int *lscale, *rscale;
|
|
unsigned char *sfx1, *sfx2;
|
|
int i;
|
|
|
|
if (ch->vol[0] > 255)
|
|
ch->vol[0] = 255;
|
|
if (ch->vol[1] > 255)
|
|
ch->vol[1] = 255;
|
|
|
|
|
|
lscale = snd_scaletable[ch->vol[0] >> 3];
|
|
rscale = snd_scaletable[ch->vol[1] >> 3];
|
|
i = ch->pos - ch->delay[0];
|
|
if (i < 0) i = 0;
|
|
sfx1 = (signed char *)sc->data + i;
|
|
i = ch->pos - ch->delay[1];
|
|
if (i < 0) i = 0;
|
|
sfx2 = (signed char *)sc->data + i;
|
|
|
|
for (i=0 ; i<count ; i++)
|
|
{
|
|
paintbuffer[i].s[0] += lscale[sfx1[i]];
|
|
paintbuffer[i].s[1] += rscale[sfx2[i]];
|
|
}
|
|
|
|
ch->pos += count;
|
|
}
|
|
|
|
#endif // !id386
|
|
|
|
void SND_PaintChannelFrom8Stereo (channel_t *ch, sfxcache_t *sc, int count)
|
|
{
|
|
// int data;
|
|
int *lscale, *rscale;
|
|
unsigned char *sfx;
|
|
int i;
|
|
|
|
if (ch->vol[0] > 255)
|
|
ch->vol[0] = 255;
|
|
if (ch->vol[1] > 255)
|
|
ch->vol[1] = 255;
|
|
|
|
|
|
lscale = snd_scaletable[ch->vol[0] >> 3];
|
|
rscale = snd_scaletable[ch->vol[1] >> 3];
|
|
sfx = (signed char *)sc->data + ch->pos;
|
|
|
|
for (i=0 ; i<count ; i++)
|
|
{
|
|
paintbuffer[i].s[0] += lscale[sfx[(i<<1)]];
|
|
paintbuffer[i].s[1] += rscale[sfx[(i<<1)+1]];
|
|
}
|
|
|
|
ch->pos += count;
|
|
}
|
|
|
|
void SND_PaintChannelFrom8_4Speaker (channel_t *ch, sfxcache_t *sc, int count)
|
|
{
|
|
int *scale0, *scale1, *scale2, *scale3;
|
|
unsigned char *sfx;
|
|
int i;
|
|
|
|
if (ch->vol[0] > 255)
|
|
ch->vol[0] = 255;
|
|
if (ch->vol[1] > 255)
|
|
ch->vol[1] = 255;
|
|
if (ch->vol[2] > 255)
|
|
ch->vol[2] = 255;
|
|
if (ch->vol[3] > 255)
|
|
ch->vol[3] = 255;
|
|
|
|
scale0 = snd_scaletable[ch->vol[0] >> 3];
|
|
scale1 = snd_scaletable[ch->vol[1] >> 3];
|
|
scale2 = snd_scaletable[ch->vol[2] >> 3];
|
|
scale3 = snd_scaletable[ch->vol[3] >> 3];
|
|
sfx = (signed char *)sc->data + ch->pos;
|
|
|
|
for (i=0 ; i<count ; i++)
|
|
{
|
|
paintbuffer[i].s[0] += scale0[sfx[i]];
|
|
paintbuffer[i].s[1] += scale1[sfx[i]];
|
|
paintbuffer[i].s[2] += scale2[sfx[i]];
|
|
paintbuffer[i].s[3] += scale3[sfx[i]];
|
|
}
|
|
|
|
ch->pos += count;
|
|
}
|
|
|
|
void SND_PaintChannelFrom8_6Speaker (channel_t *ch, sfxcache_t *sc, int count)
|
|
{
|
|
int *scale0, *scale1, *scale2, *scale3, *scale4, *scale5;
|
|
unsigned char *sfx;
|
|
int i;
|
|
|
|
if (ch->vol[0] > 255)
|
|
ch->vol[0] = 255;
|
|
if (ch->vol[1] > 255)
|
|
ch->vol[1] = 255;
|
|
if (ch->vol[2] > 255)
|
|
ch->vol[2] = 255;
|
|
if (ch->vol[3] > 255)
|
|
ch->vol[3] = 255;
|
|
if (ch->vol[4] > 255)
|
|
ch->vol[4] = 255;
|
|
if (ch->vol[5] > 255)
|
|
ch->vol[5] = 255;
|
|
|
|
scale0 = snd_scaletable[ch->vol[0] >> 3];
|
|
scale1 = snd_scaletable[ch->vol[1] >> 3];
|
|
scale2 = snd_scaletable[ch->vol[2] >> 3];
|
|
scale3 = snd_scaletable[ch->vol[3] >> 3];
|
|
scale4 = snd_scaletable[ch->vol[4] >> 3];
|
|
scale5 = snd_scaletable[ch->vol[5] >> 3];
|
|
sfx = (signed char *)sc->data + ch->pos;
|
|
|
|
for (i=0 ; i<count ; i++)
|
|
{
|
|
paintbuffer[i].s[0] += scale0[sfx[i]];
|
|
paintbuffer[i].s[1] += scale1[sfx[i]];
|
|
paintbuffer[i].s[2] += scale2[sfx[i]];
|
|
paintbuffer[i].s[3] += scale3[sfx[i]];
|
|
paintbuffer[i].s[4] += scale4[sfx[i]];
|
|
paintbuffer[i].s[5] += scale5[sfx[i]];
|
|
}
|
|
|
|
ch->pos += count;
|
|
}
|
|
|
|
|
|
|
|
void SND_PaintChannelFrom16 (channel_t *ch, sfxcache_t *sc, int count)
|
|
{
|
|
int data;
|
|
int left, right;
|
|
int leftvol, rightvol;
|
|
signed short *sfx;
|
|
int i;
|
|
|
|
leftvol = ch->vol[0];
|
|
rightvol = ch->vol[1];
|
|
sfx = (signed short *)sc->data + ch->pos;
|
|
|
|
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;
|
|
}
|
|
|
|
ch->pos += count;
|
|
}
|
|
|
|
void SND_PaintChannelFrom16Stereo (channel_t *ch, sfxcache_t *sc, int count)
|
|
{
|
|
int leftvol, rightvol;
|
|
signed short *sfx;
|
|
int i;
|
|
|
|
leftvol = ch->vol[0];
|
|
rightvol = ch->vol[1];
|
|
sfx = (signed short *)sc->data + ch->pos*2;
|
|
|
|
for (i=0 ; i<count ; i++)
|
|
{
|
|
paintbuffer[i].s[0] += (*sfx++ * leftvol) >> 8;
|
|
paintbuffer[i].s[1] += (*sfx++ * rightvol) >> 8;
|
|
}
|
|
|
|
ch->pos += count;
|
|
}
|
|
|
|
void SND_PaintChannelFrom16_6Speaker (channel_t *ch, sfxcache_t *sc, int count)
|
|
{
|
|
int vol[6];
|
|
signed short *sfx;
|
|
int i;
|
|
|
|
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];
|
|
sfx = (signed short *)sc->data + ch->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;
|
|
paintbuffer[i].s[4] += (sfx[i] * vol[4]) >> 8;
|
|
paintbuffer[i].s[5] += (sfx[i] * vol[5]) >> 8;
|
|
}
|
|
|
|
ch->pos += count;
|
|
}
|
|
|
|
void SND_PaintChannelFrom16_4Speaker (channel_t *ch, sfxcache_t *sc, int count)
|
|
{
|
|
int vol[4];
|
|
signed short *sfx;
|
|
int i;
|
|
|
|
vol[0] = ch->vol[0];
|
|
vol[1] = ch->vol[1];
|
|
vol[2] = ch->vol[2];
|
|
vol[3] = ch->vol[3];
|
|
sfx = (signed short *)sc->data + ch->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;
|
|
}
|
|
|
|
ch->pos += count;
|
|
}
|