From a8f828a066773a59fdf646299359d35ae0e845af Mon Sep 17 00:00:00 2001 From: wyatt8740 Date: Mon, 6 Jan 2014 12:02:16 -0500 Subject: Removed accidental upload of copyrighted map files --- WinQuake/snd_mix.c | 796 ++++++++++++++++++++++++++--------------------------- 1 file changed, 398 insertions(+), 398 deletions(-) (limited to 'WinQuake/snd_mix.c') diff --git a/WinQuake/snd_mix.c b/WinQuake/snd_mix.c index d31f6c9..c040494 100644 --- a/WinQuake/snd_mix.c +++ b/WinQuake/snd_mix.c @@ -1,398 +1,398 @@ -/* -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" - -#ifdef _WIN32 -#include "winquake.h" -#else -#define DWORD unsigned long -#endif - -#define PAINTBUFFER_SIZE 512 -portable_samplepair_t paintbuffer[PAINTBUFFER_SIZE]; -int snd_scaletable[32][256]; -int *snd_p, snd_linear_count, snd_vol; -short *snd_out; - -void Snd_WriteLinearBlastStereo16 (void); - -#if !id386 -void Snd_WriteLinearBlastStereo16 (void) -{ - int i; - int val; - - for (i=0 ; i>8; - if (val > 0x7fff) - snd_out[i] = 0x7fff; - else if (val < (short)0x8000) - snd_out[i] = (short)0x8000; - else - snd_out[i] = val; - - val = (snd_p[i+1]*snd_vol)>>8; - if (val > 0x7fff) - snd_out[i+1] = 0x7fff; - else if (val < (short)0x8000) - snd_out[i+1] = (short)0x8000; - else - snd_out[i+1] = val; - } -} -#endif - -void S_TransferStereo16 (int endtime) -{ - int lpos; - int lpaintedtime; - DWORD *pbuf; -#ifdef _WIN32 - int reps; - DWORD dwSize,dwSize2; - DWORD *pbuf2; - HRESULT hresult; -#endif - - snd_vol = volume.value*256; - - snd_p = (int *) paintbuffer; - lpaintedtime = paintedtime; - -#ifdef _WIN32 - if (pDSBuf) - { - reps = 0; - - while ((hresult = pDSBuf->lpVtbl->Lock(pDSBuf, 0, gSndBufSize, &pbuf, &dwSize, - &pbuf2, &dwSize2, 0)) != DS_OK) - { - if (hresult != DSERR_BUFFERLOST) - { - Con_Printf ("S_TransferStereo16: DS::Lock Sound Buffer Failed\n"); - S_Shutdown (); - S_Startup (); - return; - } - - if (++reps > 10000) - { - Con_Printf ("S_TransferStereo16: DS: couldn't restore buffer\n"); - S_Shutdown (); - S_Startup (); - return; - } - } - } - else -#endif - { - pbuf = (DWORD *)shm->buffer; - } - - while (lpaintedtime < endtime) - { - // handle recirculating buffer issues - lpos = lpaintedtime & ((shm->samples>>1)-1); - - snd_out = (short *) pbuf + (lpos<<1); - - snd_linear_count = (shm->samples>>1) - lpos; - if (lpaintedtime + snd_linear_count > endtime) - snd_linear_count = endtime - lpaintedtime; - - snd_linear_count <<= 1; - - // write a linear blast of samples - Snd_WriteLinearBlastStereo16 (); - - snd_p += snd_linear_count; - lpaintedtime += (snd_linear_count>>1); - } - -#ifdef _WIN32 - if (pDSBuf) - pDSBuf->lpVtbl->Unlock(pDSBuf, pbuf, dwSize, NULL, 0); -#endif -} - -void S_TransferPaintBuffer(int endtime) -{ - int out_idx; - int count; - int out_mask; - int *p; - int step; - int val; - int snd_vol; - DWORD *pbuf; -#ifdef _WIN32 - int reps; - DWORD dwSize,dwSize2; - DWORD *pbuf2; - HRESULT hresult; -#endif - - if (shm->samplebits == 16 && shm->channels == 2) - { - S_TransferStereo16 (endtime); - return; - } - - p = (int *) paintbuffer; - count = (endtime - paintedtime) * shm->channels; - out_mask = shm->samples - 1; - out_idx = paintedtime * shm->channels & out_mask; - step = 3 - shm->channels; - snd_vol = volume.value*256; - -#ifdef _WIN32 - if (pDSBuf) - { - reps = 0; - - while ((hresult = pDSBuf->lpVtbl->Lock(pDSBuf, 0, gSndBufSize, &pbuf, &dwSize, - &pbuf2,&dwSize2, 0)) != DS_OK) - { - if (hresult != DSERR_BUFFERLOST) - { - Con_Printf ("S_TransferPaintBuffer: DS::Lock Sound Buffer Failed\n"); - S_Shutdown (); - S_Startup (); - return; - } - - if (++reps > 10000) - { - Con_Printf ("S_TransferPaintBuffer: DS: couldn't restore buffer\n"); - S_Shutdown (); - S_Startup (); - return; - } - } - } - else -#endif - { - pbuf = (DWORD *)shm->buffer; - } - - if (shm->samplebits == 16) - { - short *out = (short *) pbuf; - while (count--) - { - val = (*p * snd_vol) >> 8; - p+= step; - if (val > 0x7fff) - val = 0x7fff; - else if (val < (short)0x8000) - val = (short)0x8000; - out[out_idx] = val; - out_idx = (out_idx + 1) & out_mask; - } - } - else if (shm->samplebits == 8) - { - unsigned char *out = (unsigned char *) pbuf; - while (count--) - { - val = (*p * snd_vol) >> 8; - p+= step; - if (val > 0x7fff) - val = 0x7fff; - else if (val < (short)0x8000) - val = (short)0x8000; - out[out_idx] = (val>>8) + 128; - out_idx = (out_idx + 1) & out_mask; - } - } - -#ifdef _WIN32 - if (pDSBuf) { - DWORD dwNewpos, dwWrite; - int il = paintedtime; - int ir = endtime - paintedtime; - - ir += il; - - pDSBuf->lpVtbl->Unlock(pDSBuf, pbuf, dwSize, NULL, 0); - - pDSBuf->lpVtbl->GetCurrentPosition(pDSBuf, &dwNewpos, &dwWrite); - -// if ((dwNewpos >= il) && (dwNewpos <= ir)) -// Con_Printf("%d-%d p %d c\n", il, ir, dwNewpos); - } -#endif -} - - -/* -=============================================================================== - -CHANNEL MIXING - -=============================================================================== -*/ - -void SND_PaintChannelFrom8 (channel_t *ch, sfxcache_t *sc, int endtime); -void SND_PaintChannelFrom16 (channel_t *ch, sfxcache_t *sc, int endtime); - -void S_PaintChannels(int endtime) -{ - int i; - int end; - channel_t *ch; - sfxcache_t *sc; - int ltime, count; - - while (paintedtime < endtime) - { - // if paintbuffer is smaller than DMA buffer - end = endtime; - if (endtime - paintedtime > PAINTBUFFER_SIZE) - end = paintedtime + PAINTBUFFER_SIZE; - - // clear the paint buffer - Q_memset(paintbuffer, 0, (end - paintedtime) * sizeof(portable_samplepair_t)); - - // paint in the channels. - ch = channels; - for (i=0; isfx) - continue; - if (!ch->leftvol && !ch->rightvol) - continue; - sc = S_LoadSound (ch->sfx); - if (!sc) - continue; - - ltime = paintedtime; - - while (ltime < end) - { // paint up to end - if (ch->end < end) - count = ch->end - ltime; - else - count = end - ltime; - - if (count > 0) - { - if (sc->width == 1) - SND_PaintChannelFrom8(ch, sc, count); - else - SND_PaintChannelFrom16(ch, sc, count); - - ltime += count; - } - - // if at end of loop, restart - if (ltime >= ch->end) - { - if (sc->loopstart >= 0) - { - ch->pos = sc->loopstart; - ch->end = ltime + sc->length - ch->pos; - } - else - { // channel just stopped - ch->sfx = NULL; - break; - } - } - } - - } - - // transfer out according to DMA format - S_TransferPaintBuffer(end); - 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 !id386 - -void SND_PaintChannelFrom8 (channel_t *ch, sfxcache_t *sc, int count) -{ - int data; - int *lscale, *rscale; - unsigned char *sfx; - int i; - - if (ch->leftvol > 255) - ch->leftvol = 255; - if (ch->rightvol > 255) - ch->rightvol = 255; - - lscale = snd_scaletable[ch->leftvol >> 3]; - rscale = snd_scaletable[ch->rightvol >> 3]; - sfx = (signed char *)sc->data + ch->pos; - - for (i=0 ; ipos += count; -} - -#endif // !id386 - - -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->leftvol; - rightvol = ch->rightvol; - sfx = (signed short *)sc->data + ch->pos; - - for (i=0 ; i> 8; - right = (data * rightvol) >> 8; - paintbuffer[i].left += left; - paintbuffer[i].right += right; - } - - ch->pos += count; -} - +/* +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" + +#ifdef _WIN32 +#include "winquake.h" +#else +#define DWORD unsigned long +#endif + +#define PAINTBUFFER_SIZE 512 +portable_samplepair_t paintbuffer[PAINTBUFFER_SIZE]; +int snd_scaletable[32][256]; +int *snd_p, snd_linear_count, snd_vol; +short *snd_out; + +void Snd_WriteLinearBlastStereo16 (void); + +#if !id386 +void Snd_WriteLinearBlastStereo16 (void) +{ + int i; + int val; + + for (i=0 ; i>8; + if (val > 0x7fff) + snd_out[i] = 0x7fff; + else if (val < (short)0x8000) + snd_out[i] = (short)0x8000; + else + snd_out[i] = val; + + val = (snd_p[i+1]*snd_vol)>>8; + if (val > 0x7fff) + snd_out[i+1] = 0x7fff; + else if (val < (short)0x8000) + snd_out[i+1] = (short)0x8000; + else + snd_out[i+1] = val; + } +} +#endif + +void S_TransferStereo16 (int endtime) +{ + int lpos; + int lpaintedtime; + DWORD *pbuf; +#ifdef _WIN32 + int reps; + DWORD dwSize,dwSize2; + DWORD *pbuf2; + HRESULT hresult; +#endif + + snd_vol = volume.value*256; + + snd_p = (int *) paintbuffer; + lpaintedtime = paintedtime; + +#ifdef _WIN32 + if (pDSBuf) + { + reps = 0; + + while ((hresult = pDSBuf->lpVtbl->Lock(pDSBuf, 0, gSndBufSize, &pbuf, &dwSize, + &pbuf2, &dwSize2, 0)) != DS_OK) + { + if (hresult != DSERR_BUFFERLOST) + { + Con_Printf ("S_TransferStereo16: DS::Lock Sound Buffer Failed\n"); + S_Shutdown (); + S_Startup (); + return; + } + + if (++reps > 10000) + { + Con_Printf ("S_TransferStereo16: DS: couldn't restore buffer\n"); + S_Shutdown (); + S_Startup (); + return; + } + } + } + else +#endif + { + pbuf = (DWORD *)shm->buffer; + } + + while (lpaintedtime < endtime) + { + // handle recirculating buffer issues + lpos = lpaintedtime & ((shm->samples>>1)-1); + + snd_out = (short *) pbuf + (lpos<<1); + + snd_linear_count = (shm->samples>>1) - lpos; + if (lpaintedtime + snd_linear_count > endtime) + snd_linear_count = endtime - lpaintedtime; + + snd_linear_count <<= 1; + + // write a linear blast of samples + Snd_WriteLinearBlastStereo16 (); + + snd_p += snd_linear_count; + lpaintedtime += (snd_linear_count>>1); + } + +#ifdef _WIN32 + if (pDSBuf) + pDSBuf->lpVtbl->Unlock(pDSBuf, pbuf, dwSize, NULL, 0); +#endif +} + +void S_TransferPaintBuffer(int endtime) +{ + int out_idx; + int count; + int out_mask; + int *p; + int step; + int val; + int snd_vol; + DWORD *pbuf; +#ifdef _WIN32 + int reps; + DWORD dwSize,dwSize2; + DWORD *pbuf2; + HRESULT hresult; +#endif + + if (shm->samplebits == 16 && shm->channels == 2) + { + S_TransferStereo16 (endtime); + return; + } + + p = (int *) paintbuffer; + count = (endtime - paintedtime) * shm->channels; + out_mask = shm->samples - 1; + out_idx = paintedtime * shm->channels & out_mask; + step = 3 - shm->channels; + snd_vol = volume.value*256; + +#ifdef _WIN32 + if (pDSBuf) + { + reps = 0; + + while ((hresult = pDSBuf->lpVtbl->Lock(pDSBuf, 0, gSndBufSize, &pbuf, &dwSize, + &pbuf2,&dwSize2, 0)) != DS_OK) + { + if (hresult != DSERR_BUFFERLOST) + { + Con_Printf ("S_TransferPaintBuffer: DS::Lock Sound Buffer Failed\n"); + S_Shutdown (); + S_Startup (); + return; + } + + if (++reps > 10000) + { + Con_Printf ("S_TransferPaintBuffer: DS: couldn't restore buffer\n"); + S_Shutdown (); + S_Startup (); + return; + } + } + } + else +#endif + { + pbuf = (DWORD *)shm->buffer; + } + + if (shm->samplebits == 16) + { + short *out = (short *) pbuf; + while (count--) + { + val = (*p * snd_vol) >> 8; + p+= step; + if (val > 0x7fff) + val = 0x7fff; + else if (val < (short)0x8000) + val = (short)0x8000; + out[out_idx] = val; + out_idx = (out_idx + 1) & out_mask; + } + } + else if (shm->samplebits == 8) + { + unsigned char *out = (unsigned char *) pbuf; + while (count--) + { + val = (*p * snd_vol) >> 8; + p+= step; + if (val > 0x7fff) + val = 0x7fff; + else if (val < (short)0x8000) + val = (short)0x8000; + out[out_idx] = (val>>8) + 128; + out_idx = (out_idx + 1) & out_mask; + } + } + +#ifdef _WIN32 + if (pDSBuf) { + DWORD dwNewpos, dwWrite; + int il = paintedtime; + int ir = endtime - paintedtime; + + ir += il; + + pDSBuf->lpVtbl->Unlock(pDSBuf, pbuf, dwSize, NULL, 0); + + pDSBuf->lpVtbl->GetCurrentPosition(pDSBuf, &dwNewpos, &dwWrite); + +// if ((dwNewpos >= il) && (dwNewpos <= ir)) +// Con_Printf("%d-%d p %d c\n", il, ir, dwNewpos); + } +#endif +} + + +/* +=============================================================================== + +CHANNEL MIXING + +=============================================================================== +*/ + +void SND_PaintChannelFrom8 (channel_t *ch, sfxcache_t *sc, int endtime); +void SND_PaintChannelFrom16 (channel_t *ch, sfxcache_t *sc, int endtime); + +void S_PaintChannels(int endtime) +{ + int i; + int end; + channel_t *ch; + sfxcache_t *sc; + int ltime, count; + + while (paintedtime < endtime) + { + // if paintbuffer is smaller than DMA buffer + end = endtime; + if (endtime - paintedtime > PAINTBUFFER_SIZE) + end = paintedtime + PAINTBUFFER_SIZE; + + // clear the paint buffer + Q_memset(paintbuffer, 0, (end - paintedtime) * sizeof(portable_samplepair_t)); + + // paint in the channels. + ch = channels; + for (i=0; isfx) + continue; + if (!ch->leftvol && !ch->rightvol) + continue; + sc = S_LoadSound (ch->sfx); + if (!sc) + continue; + + ltime = paintedtime; + + while (ltime < end) + { // paint up to end + if (ch->end < end) + count = ch->end - ltime; + else + count = end - ltime; + + if (count > 0) + { + if (sc->width == 1) + SND_PaintChannelFrom8(ch, sc, count); + else + SND_PaintChannelFrom16(ch, sc, count); + + ltime += count; + } + + // if at end of loop, restart + if (ltime >= ch->end) + { + if (sc->loopstart >= 0) + { + ch->pos = sc->loopstart; + ch->end = ltime + sc->length - ch->pos; + } + else + { // channel just stopped + ch->sfx = NULL; + break; + } + } + } + + } + + // transfer out according to DMA format + S_TransferPaintBuffer(end); + 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 !id386 + +void SND_PaintChannelFrom8 (channel_t *ch, sfxcache_t *sc, int count) +{ + int data; + int *lscale, *rscale; + unsigned char *sfx; + int i; + + if (ch->leftvol > 255) + ch->leftvol = 255; + if (ch->rightvol > 255) + ch->rightvol = 255; + + lscale = snd_scaletable[ch->leftvol >> 3]; + rscale = snd_scaletable[ch->rightvol >> 3]; + sfx = (signed char *)sc->data + ch->pos; + + for (i=0 ; ipos += count; +} + +#endif // !id386 + + +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->leftvol; + rightvol = ch->rightvol; + sfx = (signed short *)sc->data + ch->pos; + + for (i=0 ; i> 8; + right = (data * rightvol) >> 8; + paintbuffer[i].left += left; + paintbuffer[i].right += right; + } + + ch->pos += count; +} + -- cgit v1.2.3