diff options
Diffstat (limited to 'ioq3-r437/src/client/snd_mix.c')
| -rw-r--r-- | ioq3-r437/src/client/snd_mix.c | 747 |
1 files changed, 0 insertions, 747 deletions
diff --git a/ioq3-r437/src/client/snd_mix.c b/ioq3-r437/src/client/snd_mix.c deleted file mode 100644 index c1ad06bc..00000000 --- a/ioq3-r437/src/client/snd_mix.c +++ /dev/null @@ -1,747 +0,0 @@ -/* -=========================================================================== -Copyright (C) 1999-2005 Id Software, Inc. - -This file is part of Quake III Arena source code. - -Quake III Arena source code 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. - -Quake III Arena source code 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 Quake III Arena source code; if not, write to the Free Software -Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -=========================================================================== -*/ -// snd_mix.c -- portable code to mix sounds for snd_dma.c - -#include "snd_local.h" -#if idppc_altivec && !defined(MACOS_X) -#include <altivec.h> -#endif - -static portable_samplepair_t paintbuffer[PAINTBUFFER_SIZE]; -static int snd_vol; - -// bk001119 - these not static, required by unix/snd_mixa.s -int* snd_p; -int snd_linear_count; -short* snd_out; - -#if !id386 // if configured not to use asm - -void S_WriteLinearBlastStereo16 (void) -{ - int i; - int val; - - for (i=0 ; i<snd_linear_count ; i+=2) - { - val = snd_p[i]>>8; - if (val > 0x7fff) - snd_out[i] = 0x7fff; - else if (val < -32768) - snd_out[i] = -32768; - else - snd_out[i] = val; - - val = snd_p[i+1]>>8; - if (val > 0x7fff) - snd_out[i+1] = 0x7fff; - else if (val < -32768) - snd_out[i+1] = -32768; - else - snd_out[i+1] = val; - } -} -#elif defined(__GNUC__) -// uses snd_mixa.s -void S_WriteLinearBlastStereo16 (void); -#else - -__declspec( naked ) void S_WriteLinearBlastStereo16 (void) -{ - __asm { - - push edi - push ebx - mov ecx,ds:dword ptr[snd_linear_count] - mov ebx,ds:dword ptr[snd_p] - mov edi,ds:dword ptr[snd_out] -LWLBLoopTop: - mov eax,ds:dword ptr[-8+ebx+ecx*4] - sar eax,8 - cmp eax,07FFFh - jg LClampHigh - cmp eax,0FFFF8000h - jnl LClampDone - mov eax,0FFFF8000h - jmp LClampDone -LClampHigh: - mov eax,07FFFh -LClampDone: - mov edx,ds:dword ptr[-4+ebx+ecx*4] - sar edx,8 - cmp edx,07FFFh - jg LClampHigh2 - cmp edx,0FFFF8000h - jnl LClampDone2 - mov edx,0FFFF8000h - jmp LClampDone2 -LClampHigh2: - mov edx,07FFFh -LClampDone2: - shl edx,16 - and eax,0FFFFh - or edx,eax - mov ds:dword ptr[-4+edi+ecx*2],edx - sub ecx,2 - jnz LWLBLoopTop - pop ebx - pop edi - ret - } -} - -#endif - -void S_TransferStereo16 (unsigned long *pbuf, int endtime) -{ - int lpos; - int ls_paintedtime; - - snd_p = (int *) paintbuffer; - ls_paintedtime = s_paintedtime; - - while (ls_paintedtime < endtime) - { - // handle recirculating buffer issues - lpos = ls_paintedtime & ((dma.samples>>1)-1); - - snd_out = (short *) pbuf + (lpos<<1); - - snd_linear_count = (dma.samples>>1) - lpos; - if (ls_paintedtime + snd_linear_count > endtime) - snd_linear_count = endtime - ls_paintedtime; - - snd_linear_count <<= 1; - - // write a linear blast of samples - S_WriteLinearBlastStereo16 (); - - snd_p += snd_linear_count; - ls_paintedtime += (snd_linear_count>>1); - } -} - -/* -=================== -S_TransferPaintBuffer - -=================== -*/ -void S_TransferPaintBuffer(int endtime) -{ - int out_idx; - int count; - int out_mask; - int *p; - int step; - int val; - unsigned long *pbuf; - - pbuf = (unsigned long *)dma.buffer; - - - if ( s_testsound->integer ) { - int i; - int count; - - // write a fixed sine wave - count = (endtime - s_paintedtime); - for (i=0 ; i<count ; i++) - paintbuffer[i].left = paintbuffer[i].right = sin((s_paintedtime+i)*0.1)*20000*256; - } - - - if (dma.samplebits == 16 && dma.channels == 2) - { // optimized case - S_TransferStereo16 (pbuf, endtime); - } - else - { // general case - p = (int *) paintbuffer; - count = (endtime - s_paintedtime) * dma.channels; - out_mask = dma.samples - 1; - out_idx = s_paintedtime * dma.channels & out_mask; - step = 3 - dma.channels; - - if (dma.samplebits == 16) - { - short *out = (short *) pbuf; - while (count--) - { - val = *p >> 8; - p+= step; - if (val > 0x7fff) - val = 0x7fff; - else if (val < -32768) - val = -32768; - out[out_idx] = val; - out_idx = (out_idx + 1) & out_mask; - } - } - else if (dma.samplebits == 8) - { - unsigned char *out = (unsigned char *) pbuf; - while (count--) - { - val = *p >> 8; - p+= step; - if (val > 0x7fff) - val = 0x7fff; - else if (val < -32768) - val = -32768; - out[out_idx] = (val>>8) + 128; - out_idx = (out_idx + 1) & out_mask; - } - } - } -} - - -/* -=============================================================================== - -CHANNEL MIXING - -=============================================================================== -*/ - -#if idppc_altivec -static void S_PaintChannelFrom16_altivec( channel_t *ch, const sfx_t *sc, int count, int sampleOffset, int bufferOffset ) { - int data, aoff, boff; - int leftvol, rightvol; - int i, j; - portable_samplepair_t *samp; - sndBuffer *chunk; - short *samples; - float ooff, fdata, fdiv, fleftvol, frightvol; - - samp = &paintbuffer[ bufferOffset ]; - - if (ch->doppler) { - sampleOffset = sampleOffset*ch->oldDopplerScale; - } - - chunk = sc->soundData; - while (sampleOffset>=SND_CHUNK_SIZE) { - chunk = chunk->next; - sampleOffset -= SND_CHUNK_SIZE; - if (!chunk) { - chunk = sc->soundData; - } - } - - if (!ch->doppler || ch->dopplerScale==1.0f) { - vector signed short volume_vec; - vector unsigned int volume_shift; - int vectorCount, samplesLeft, chunkSamplesLeft; - leftvol = ch->leftvol*snd_vol; - rightvol = ch->rightvol*snd_vol; - samples = chunk->sndChunk; - ((short *)&volume_vec)[0] = leftvol; - ((short *)&volume_vec)[1] = leftvol; - ((short *)&volume_vec)[4] = leftvol; - ((short *)&volume_vec)[5] = leftvol; - ((short *)&volume_vec)[2] = rightvol; - ((short *)&volume_vec)[3] = rightvol; - ((short *)&volume_vec)[6] = rightvol; - ((short *)&volume_vec)[7] = rightvol; - volume_shift = vec_splat_u32(8); - i = 0; - - while(i < count) { - /* Try to align destination to 16-byte boundary */ - while(i < count && (((unsigned long)&samp[i] & 0x1f) || ((count-i) < 8) || ((SND_CHUNK_SIZE - sampleOffset) < 8))) { - data = samples[sampleOffset++]; - samp[i].left += (data * leftvol)>>8; - samp[i].right += (data * rightvol)>>8; - - if (sampleOffset == SND_CHUNK_SIZE) { - chunk = chunk->next; - samples = chunk->sndChunk; - sampleOffset = 0; - } - i++; - } - /* Destination is now aligned. Process as many 8-sample - chunks as we can before we run out of room from the current - sound chunk. We do 8 per loop to avoid extra source data reads. */ - samplesLeft = count - i; - chunkSamplesLeft = SND_CHUNK_SIZE - sampleOffset; - if(samplesLeft > chunkSamplesLeft) - samplesLeft = chunkSamplesLeft; - - vectorCount = samplesLeft / 8; - - if(vectorCount) - { - vector unsigned char tmp; - vector short s0, s1, sampleData0, sampleData1; - vector signed int merge0, merge1; - vector signed int d0, d1, d2, d3; - vector unsigned char samplePermute0 = - VECCONST_UINT8(0, 1, 4, 5, 0, 1, 4, 5, 2, 3, 6, 7, 2, 3, 6, 7); - vector unsigned char samplePermute1 = - VECCONST_UINT8(8, 9, 12, 13, 8, 9, 12, 13, 10, 11, 14, 15, 10, 11, 14, 15); - vector unsigned char loadPermute0, loadPermute1; - - // Rather than permute the vectors after we load them to do the sample - // replication and rearrangement, we permute the alignment vector so - // we do everything in one step below and avoid data shuffling. - tmp = vec_lvsl(0,&samples[sampleOffset]); - loadPermute0 = vec_perm(tmp,tmp,samplePermute0); - loadPermute1 = vec_perm(tmp,tmp,samplePermute1); - - s0 = *(vector short *)&samples[sampleOffset]; - while(vectorCount) - { - /* Load up source (16-bit) sample data */ - s1 = *(vector short *)&samples[sampleOffset+7]; - - /* Load up destination sample data */ - d0 = *(vector signed int *)&samp[i]; - d1 = *(vector signed int *)&samp[i+2]; - d2 = *(vector signed int *)&samp[i+4]; - d3 = *(vector signed int *)&samp[i+6]; - - sampleData0 = vec_perm(s0,s1,loadPermute0); - sampleData1 = vec_perm(s0,s1,loadPermute1); - - merge0 = vec_mule(sampleData0,volume_vec); - merge0 = vec_sra(merge0,volume_shift); /* Shift down to proper range */ - - merge1 = vec_mulo(sampleData0,volume_vec); - merge1 = vec_sra(merge1,volume_shift); - - d0 = vec_add(merge0,d0); - d1 = vec_add(merge1,d1); - - merge0 = vec_mule(sampleData1,volume_vec); - merge0 = vec_sra(merge0,volume_shift); /* Shift down to proper range */ - - merge1 = vec_mulo(sampleData1,volume_vec); - merge1 = vec_sra(merge1,volume_shift); - - d2 = vec_add(merge0,d2); - d3 = vec_add(merge1,d3); - - /* Store destination sample data */ - *(vector signed int *)&samp[i] = d0; - *(vector signed int *)&samp[i+2] = d1; - *(vector signed int *)&samp[i+4] = d2; - *(vector signed int *)&samp[i+6] = d3; - - i += 8; - vectorCount--; - s0 = s1; - sampleOffset += 8; - } - if (sampleOffset == SND_CHUNK_SIZE) { - chunk = chunk->next; - samples = chunk->sndChunk; - sampleOffset = 0; - } - } - } - } else { - fleftvol = ch->leftvol*snd_vol; - frightvol = ch->rightvol*snd_vol; - - ooff = sampleOffset; - samples = chunk->sndChunk; - - for ( i=0 ; i<count ; i++ ) { - - aoff = ooff; - ooff = ooff + ch->dopplerScale; - boff = ooff; - fdata = 0; - for (j=aoff; j<boff; j++) { - if (j == SND_CHUNK_SIZE) { - chunk = chunk->next; - if (!chunk) { - chunk = sc->soundData; - } - samples = chunk->sndChunk; - ooff -= SND_CHUNK_SIZE; - } - fdata += samples[j&(SND_CHUNK_SIZE-1)]; - } - fdiv = 256 * (boff-aoff); - samp[i].left += (fdata * fleftvol)/fdiv; - samp[i].right += (fdata * frightvol)/fdiv; - } - } -} -#endif - -static void S_PaintChannelFrom16_scalar( channel_t *ch, const sfx_t *sc, int count, int sampleOffset, int bufferOffset ) { - int data, aoff, boff; - int leftvol, rightvol; - int i, j; - portable_samplepair_t *samp; - sndBuffer *chunk; - short *samples; - float ooff, fdata, fdiv, fleftvol, frightvol; - - samp = &paintbuffer[ bufferOffset ]; - - if (ch->doppler) { - sampleOffset = sampleOffset*ch->oldDopplerScale; - } - - chunk = sc->soundData; - while (sampleOffset>=SND_CHUNK_SIZE) { - chunk = chunk->next; - sampleOffset -= SND_CHUNK_SIZE; - if (!chunk) { - chunk = sc->soundData; - } - } - - if (!ch->doppler || ch->dopplerScale==1.0f) { - leftvol = ch->leftvol*snd_vol; - rightvol = ch->rightvol*snd_vol; - samples = chunk->sndChunk; - for ( i=0 ; i<count ; i++ ) { - data = samples[sampleOffset++]; - samp[i].left += (data * leftvol)>>8; - samp[i].right += (data * rightvol)>>8; - - if (sampleOffset == SND_CHUNK_SIZE) { - chunk = chunk->next; - samples = chunk->sndChunk; - sampleOffset = 0; - } - } - } else { - fleftvol = ch->leftvol*snd_vol; - frightvol = ch->rightvol*snd_vol; - - ooff = sampleOffset; - samples = chunk->sndChunk; - - - - - for ( i=0 ; i<count ; i++ ) { - - aoff = ooff; - ooff = ooff + ch->dopplerScale; - boff = ooff; - fdata = 0; - for (j=aoff; j<boff; j++) { - if (j == SND_CHUNK_SIZE) { - chunk = chunk->next; - if (!chunk) { - chunk = sc->soundData; - } - samples = chunk->sndChunk; - ooff -= SND_CHUNK_SIZE; - } - fdata += samples[j&(SND_CHUNK_SIZE-1)]; - } - fdiv = 256 * (boff-aoff); - samp[i].left += (fdata * fleftvol)/fdiv; - samp[i].right += (fdata * frightvol)/fdiv; - } - } -} - -static void S_PaintChannelFrom16( channel_t *ch, const sfx_t *sc, int count, int sampleOffset, int bufferOffset ) { -#if idppc_altivec - if (com_altivec->integer) { - // must be in a seperate function or G3 systems will crash. - S_PaintChannelFrom16_altivec( ch, sc, count, sampleOffset, bufferOffset ); - return; - } -#endif - S_PaintChannelFrom16_scalar( ch, sc, count, sampleOffset, bufferOffset ); -} - -void S_PaintChannelFromWavelet( channel_t *ch, sfx_t *sc, int count, int sampleOffset, int bufferOffset ) { - int data; - int leftvol, rightvol; - int i; - portable_samplepair_t *samp; - sndBuffer *chunk; - short *samples; - - leftvol = ch->leftvol*snd_vol; - rightvol = ch->rightvol*snd_vol; - - i = 0; - samp = &paintbuffer[ bufferOffset ]; - chunk = sc->soundData; - while (sampleOffset>=(SND_CHUNK_SIZE_FLOAT*4)) { - chunk = chunk->next; - sampleOffset -= (SND_CHUNK_SIZE_FLOAT*4); - i++; - } - - if (i!=sfxScratchIndex || sfxScratchPointer != sc) { - S_AdpcmGetSamples( chunk, sfxScratchBuffer ); - sfxScratchIndex = i; - sfxScratchPointer = sc; - } - - samples = sfxScratchBuffer; - - for ( i=0 ; i<count ; i++ ) { - data = samples[sampleOffset++]; - samp[i].left += (data * leftvol)>>8; - samp[i].right += (data * rightvol)>>8; - - if (sampleOffset == SND_CHUNK_SIZE*2) { - chunk = chunk->next; - decodeWavelet(chunk, sfxScratchBuffer); - sfxScratchIndex++; - sampleOffset = 0; - } - } -} - -void S_PaintChannelFromADPCM( channel_t *ch, sfx_t *sc, int count, int sampleOffset, int bufferOffset ) { - int data; - int leftvol, rightvol; - int i; - portable_samplepair_t *samp; - sndBuffer *chunk; - short *samples; - - leftvol = ch->leftvol*snd_vol; - rightvol = ch->rightvol*snd_vol; - - i = 0; - samp = &paintbuffer[ bufferOffset ]; - chunk = sc->soundData; - - if (ch->doppler) { - sampleOffset = sampleOffset*ch->oldDopplerScale; - } - - while (sampleOffset>=(SND_CHUNK_SIZE*4)) { - chunk = chunk->next; - sampleOffset -= (SND_CHUNK_SIZE*4); - i++; - } - - if (i!=sfxScratchIndex || sfxScratchPointer != sc) { - S_AdpcmGetSamples( chunk, sfxScratchBuffer ); - sfxScratchIndex = i; - sfxScratchPointer = sc; - } - - samples = sfxScratchBuffer; - - for ( i=0 ; i<count ; i++ ) { - data = samples[sampleOffset++]; - samp[i].left += (data * leftvol)>>8; - samp[i].right += (data * rightvol)>>8; - - if (sampleOffset == SND_CHUNK_SIZE*4) { - chunk = chunk->next; - S_AdpcmGetSamples( chunk, sfxScratchBuffer); - sampleOffset = 0; - sfxScratchIndex++; - } - } -} - -void S_PaintChannelFromMuLaw( channel_t *ch, sfx_t *sc, int count, int sampleOffset, int bufferOffset ) { - int data; - int leftvol, rightvol; - int i; - portable_samplepair_t *samp; - sndBuffer *chunk; - byte *samples; - float ooff; - - leftvol = ch->leftvol*snd_vol; - rightvol = ch->rightvol*snd_vol; - - samp = &paintbuffer[ bufferOffset ]; - chunk = sc->soundData; - while (sampleOffset>=(SND_CHUNK_SIZE*2)) { - chunk = chunk->next; - sampleOffset -= (SND_CHUNK_SIZE*2); - if (!chunk) { - chunk = sc->soundData; - } - } - - if (!ch->doppler) { - samples = (byte *)chunk->sndChunk + sampleOffset; - for ( i=0 ; i<count ; i++ ) { - data = mulawToShort[*samples]; - samp[i].left += (data * leftvol)>>8; - samp[i].right += (data * rightvol)>>8; - samples++; - if (samples == (byte *)chunk->sndChunk+(SND_CHUNK_SIZE*2)) { - chunk = chunk->next; - samples = (byte *)chunk->sndChunk; - } - } - } else { - ooff = sampleOffset; - samples = (byte *)chunk->sndChunk; - for ( i=0 ; i<count ; i++ ) { - data = mulawToShort[samples[(int)(ooff)]]; - ooff = ooff + ch->dopplerScale; - samp[i].left += (data * leftvol)>>8; - samp[i].right += (data * rightvol)>>8; - if (ooff >= SND_CHUNK_SIZE*2) { - chunk = chunk->next; - if (!chunk) { - chunk = sc->soundData; - } - samples = (byte *)chunk->sndChunk; - ooff = 0.0; - } - } - } -} - -/* -=================== -S_PaintChannels -=================== -*/ -void S_PaintChannels( int endtime ) { - int i; - int end; - channel_t *ch; - sfx_t *sc; - int ltime, count; - int sampleOffset; - - - snd_vol = s_volume->value*255; - -//Com_Printf ("%i to %i\n", s_paintedtime, endtime); - while ( s_paintedtime < endtime ) { - // if paintbuffer is smaller than DMA buffer - // we may need to fill it multiple times - end = endtime; - if ( endtime - s_paintedtime > PAINTBUFFER_SIZE ) { - end = s_paintedtime + PAINTBUFFER_SIZE; - } - - // clear the paint buffer to either music or zeros - if ( s_rawend < s_paintedtime ) { - if ( s_rawend ) { - //Com_DPrintf ("background sound underrun\n"); - } - Com_Memset(paintbuffer, 0, (end - s_paintedtime) * sizeof(portable_samplepair_t)); - } else { - // copy from the streaming sound source - int s; - int stop; - - stop = (end < s_rawend) ? end : s_rawend; - - for ( i = s_paintedtime ; i < stop ; i++ ) { - s = i&(MAX_RAW_SAMPLES-1); - paintbuffer[i-s_paintedtime] = s_rawsamples[s]; - } -// if (i != end) -// Com_Printf ("partial stream\n"); -// else -// Com_Printf ("full stream\n"); - for ( ; i < end ; i++ ) { - paintbuffer[i-s_paintedtime].left = - paintbuffer[i-s_paintedtime].right = 0; - } - } - - // paint in the channels. - ch = s_channels; - for ( i = 0; i < MAX_CHANNELS ; i++, ch++ ) { - if ( !ch->thesfx || (ch->leftvol<0.25 && ch->rightvol<0.25 )) { - continue; - } - - ltime = s_paintedtime; - sc = ch->thesfx; - - sampleOffset = ltime - ch->startSample; - count = end - ltime; - if ( sampleOffset + count > sc->soundLength ) { - count = sc->soundLength - sampleOffset; - } - - if ( count > 0 ) { - if( sc->soundCompressionMethod == 1) { - S_PaintChannelFromADPCM (ch, sc, count, sampleOffset, ltime - s_paintedtime); - } else if( sc->soundCompressionMethod == 2) { - S_PaintChannelFromWavelet (ch, sc, count, sampleOffset, ltime - s_paintedtime); - } else if( sc->soundCompressionMethod == 3) { - S_PaintChannelFromMuLaw (ch, sc, count, sampleOffset, ltime - s_paintedtime); - } else { - S_PaintChannelFrom16 (ch, sc, count, sampleOffset, ltime - s_paintedtime); - } - } - } - - // paint in the looped channels. - ch = loop_channels; - for ( i = 0; i < numLoopChannels ; i++, ch++ ) { - if ( !ch->thesfx || (!ch->leftvol && !ch->rightvol )) { - continue; - } - - ltime = s_paintedtime; - sc = ch->thesfx; - - if (sc->soundData==NULL || sc->soundLength==0) { - continue; - } - // we might have to make two passes if it - // is a looping sound effect and the end of - // the sample is hit - do { - sampleOffset = (ltime % sc->soundLength); - - count = end - ltime; - if ( sampleOffset + count > sc->soundLength ) { - count = sc->soundLength - sampleOffset; - } - - if ( count > 0 ) { - if( sc->soundCompressionMethod == 1) { - S_PaintChannelFromADPCM (ch, sc, count, sampleOffset, ltime - s_paintedtime); - } else if( sc->soundCompressionMethod == 2) { - S_PaintChannelFromWavelet (ch, sc, count, sampleOffset, ltime - s_paintedtime); - } else if( sc->soundCompressionMethod == 3) { - S_PaintChannelFromMuLaw (ch, sc, count, sampleOffset, ltime - s_paintedtime); - } else { - S_PaintChannelFrom16 (ch, sc, count, sampleOffset, ltime - s_paintedtime); - } - ltime += count; - } - } while ( ltime < end); - } - - // transfer out according to DMA format - S_TransferPaintBuffer( end ); - s_paintedtime = end; - } -} |