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.
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
-// snd_mix.c -- portable code to mix sounds for snd_dma.c
+// snd_mix.c -- portable code to mix sounds
#include "quakedef.h"
+#include "snd_main.h"
-#ifdef _WIN32
-#include "winquake.h"
-#else
-#define DWORD unsigned long
-#endif
+typedef struct portable_samplepair_s
+{
+ int left;
+ int right;
+} portable_samplepair_t;
-#define PAINTBUFFER_SIZE 512
+// LordHavoc: was 512, expanded to 2048
+#define PAINTBUFFER_SIZE 2048
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);
-extern cvar_t snd_swapstereo;
-void Snd_WriteLinearBlastStereo16 (void)
+// FIXME: this desyncs with the video too easily
+extern qboolean cl_capturevideo_active;
+extern void SCR_CaptureVideo_SoundFrame(qbyte *bufstereo16le, size_t length, int rate);
+void S_CaptureAVISound(portable_samplepair_t *buf, size_t length)
{
- int i;
- int val;
-
- if (snd_swapstereo.value)
+ int n;
+ size_t i;
+ qbyte out[PAINTBUFFER_SIZE * 4];
+ if (!cl_capturevideo_active)
+ return;
+ // write the sound buffer as little endian 16bit interleaved stereo
+ for(i = 0;i < length;i++)
{
- for (i=0 ; i<snd_linear_count ; i+=2)
- {
- val = (snd_p[i+1]*snd_vol)>>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]*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;
- }
- }
- else
- {
- for (i=0 ; i<snd_linear_count ; i+=2)
- {
- val = (snd_p[i]*snd_vol)>>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;
- }
+ n = buf[i].left;
+ n = bound(-32768, n, 32767);
+ out[i*4+0] = n & 0xFF;
+ out[i*4+1] = (n >> 8) & 0xFF;
+ n = buf[i].right;
+ n = bound(-32768, n, 32767);
+ out[i*4+2] = n & 0xFF;
+ out[i*4+3] = (n >> 8) & 0xFF;
}
+ SCR_CaptureVideo_SoundFrame(out, length, shm->format.speed);
}
-void S_TransferStereo16 (int endtime)
+// TODO: rewrite this function
+void S_TransferPaintBuffer(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)
+ void *pbuf;
+ if ((pbuf = S_LockBuffer()))
{
- reps = 0;
-
- while ((hresult = pDSBuf->lpVtbl->Lock(pDSBuf, 0, gSndBufSize, &pbuf, &dwSize,
- &pbuf2, &dwSize2, 0)) != DS_OK)
+ int i;
+ int *snd_p;
+ int lpaintedtime;
+ int snd_linear_count;
+ int val;
+ snd_p = (int *) paintbuffer;
+ lpaintedtime = paintedtime;
+ if (shm->format.width == 2)
{
- if (hresult != DSERR_BUFFERLOST)
+ // 16bit
+ short *snd_out;
+ if (shm->format.channels == 2)
{
- Con_Printf ("S_TransferStereo16: DS::Lock Sound Buffer Failed\n");
- S_Shutdown ();
- S_Startup ();
- return;
+ // 16bit 2 channels (stereo)
+ while (lpaintedtime < endtime)
+ {
+ // handle recirculating buffer issues
+ i = lpaintedtime & ((shm->samples >> 1) - 1);
+ snd_out = (short *) pbuf + (i << 1);
+ snd_linear_count = (shm->samples >> 1) - i;
+ if (snd_linear_count > endtime - lpaintedtime)
+ snd_linear_count = endtime - lpaintedtime;
+ snd_linear_count <<= 1;
+ if (snd_swapstereo.value)
+ {
+ for (i = 0;i < snd_linear_count;i += 2)
+ {
+ snd_out[i ] = bound(-32768, snd_p[i + 1], 32767);
+ snd_out[i + 1] = bound(-32768, snd_p[i ], 32767);
+ }
+ }
+ else
+ {
+ for (i = 0;i < snd_linear_count;i += 2)
+ {
+ snd_out[i ] = bound(-32768, snd_p[i ], 32767);
+ snd_out[i + 1] = bound(-32768, snd_p[i + 1], 32767);
+ }
+ }
+ snd_p += snd_linear_count;
+ lpaintedtime += (snd_linear_count >> 1);
+ }
}
-
- if (++reps > 10000)
+ else
{
- Con_Printf ("S_TransferStereo16: DS: couldn't restore buffer\n");
- S_Shutdown ();
- S_Startup ();
- return;
+ // 16bit 1 channel (mono)
+ while (lpaintedtime < endtime)
+ {
+ // handle recirculating buffer issues
+ i = lpaintedtime & (shm->samples - 1);
+ snd_out = (short *) pbuf + i;
+ snd_linear_count = shm->samples - i;
+ if (snd_linear_count > endtime - lpaintedtime)
+ snd_linear_count = endtime - lpaintedtime;
+ for (i = 0;i < snd_linear_count;i++)
+ {
+ val = (snd_p[i * 2 + 0] + snd_p[i * 2 + 1]) >> 1;
+ snd_out[i] = bound(-32768, val, 32767);
+ }
+ snd_p += snd_linear_count << 1;
+ lpaintedtime += snd_linear_count;
+ }
}
}
- }
- 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)
+ else
{
- if (hresult != DSERR_BUFFERLOST)
+ // 8bit
+ unsigned char *snd_out;
+ if (shm->format.channels == 2)
{
- Con_Printf ("S_TransferPaintBuffer: DS::Lock Sound Buffer Failed\n");
- S_Shutdown ();
- S_Startup ();
- return;
+ // 8bit 2 channels (stereo)
+ while (lpaintedtime < endtime)
+ {
+ // handle recirculating buffer issues
+ i = lpaintedtime & ((shm->samples >> 1) - 1);
+ snd_out = (unsigned char *) pbuf + (i << 1);
+ snd_linear_count = (shm->samples >> 1) - i;
+ if (snd_linear_count > endtime - lpaintedtime)
+ snd_linear_count = endtime - lpaintedtime;
+ snd_linear_count <<= 1;
+ if (snd_swapstereo.value)
+ {
+ for (i = 0;i < snd_linear_count;i += 2)
+ {
+ val = (snd_p[i + 1] >> 8) + 128;
+ snd_out[i ] = bound(0, val, 255);
+ val = (snd_p[i ] >> 8) + 128;
+ snd_out[i + 1] = bound(0, val, 255);
+ }
+ }
+ else
+ {
+ for (i = 0;i < snd_linear_count;i += 2)
+ {
+ val = (snd_p[i ] >> 8) + 128;
+ snd_out[i ] = bound(0, val, 255);
+ val = (snd_p[i + 1] >> 8) + 128;
+ snd_out[i + 1] = bound(0, val, 255);
+ }
+ }
+ snd_p += snd_linear_count;
+ lpaintedtime += (snd_linear_count >> 1);
+ }
}
-
- if (++reps > 10000)
+ else
{
- Con_Printf ("S_TransferPaintBuffer: DS: couldn't restore buffer\n");
- S_Shutdown ();
- S_Startup ();
- return;
+ // 8bit 1 channel (mono)
+ while (lpaintedtime < endtime)
+ {
+ // handle recirculating buffer issues
+ i = lpaintedtime & (shm->samples - 1);
+ snd_out = (unsigned char *) pbuf + i;
+ snd_linear_count = shm->samples - i;
+ if (snd_linear_count > endtime - lpaintedtime)
+ snd_linear_count = endtime - lpaintedtime;
+ for (i = 0;i < snd_linear_count;i++)
+ {
+ val = ((snd_p[i * 2] + snd_p[i * 2 + 1]) >> 9) + 128;
+ snd_out[i ] = bound(0, val, 255);
+ }
+ snd_p += snd_linear_count << 1;
+ lpaintedtime += snd_linear_count;
+ }
}
}
- }
- 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;
- }
+ S_UnlockBuffer();
}
-
-#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
}
===============================================================================
*/
-void SND_PaintChannelFrom8 (channel_t *ch, sfxcache_t *sc, int endtime);
-void SND_PaintChannelFrom16 (channel_t *ch, sfxcache_t *sc, int endtime);
+qboolean SND_PaintChannelFrom8 (channel_t *ch, int endtime);
+qboolean SND_PaintChannelFrom16 (channel_t *ch, int endtime);
void S_PaintChannels(int endtime)
{
- int i;
- int end;
+ unsigned int i;
+ int end;
channel_t *ch;
- sfxcache_t *sc;
- int ltime, count;
+ sfx_t *sfx;
+ int ltime, count;
while (paintedtime < endtime)
{
- // if paintbuffer is smaller than DMA buffer
+ // if paintbuffer is smaller than DMA buffer
end = endtime;
if (endtime - paintedtime > PAINTBUFFER_SIZE)
end = paintedtime + PAINTBUFFER_SIZE;
- // clear the paint buffer
- memset(paintbuffer, 0, (end - paintedtime) * sizeof(portable_samplepair_t));
+ // clear the paint buffer
+ memset (&paintbuffer, 0, (end - paintedtime) * sizeof (paintbuffer[0]));
- // paint in the channels.
+ // paint in the channels.
ch = channels;
for (i=0; i<total_channels ; i++, ch++)
{
- if (!ch->sfx)
+ sfx = ch->sfx;
+ if (!sfx)
continue;
if (!ch->leftvol && !ch->rightvol)
continue;
- sc = S_LoadSound (ch->sfx);
- if (!sc)
+ if (!S_LoadSound (sfx, true))
continue;
- ltime = paintedtime;
+ // if the channel is paused
+ if (ch->flags & CHANNELFLAG_PAUSED)
+ {
+ int pausedtime = end - paintedtime;
+ ch->lastptime += pausedtime;
+ ch->end += pausedtime;
+ continue;
+ }
+
+ // if the sound hasn't been painted last time, update his position
+ if (ch->lastptime < paintedtime)
+ {
+ ch->pos += paintedtime - ch->lastptime;
+
+ // If the sound should have ended by then
+ if ((unsigned int)ch->pos > sfx->total_length)
+ {
+ int loopstart;
+
+ if (ch->flags & CHANNELFLAG_FORCELOOP)
+ loopstart = 0;
+ else
+ loopstart = -1;
+ if (sfx->loopstart >= 0)
+ loopstart = sfx->loopstart;
+ // If the sound is looped
+ if (loopstart >= 0)
+ ch->pos = (ch->pos - sfx->total_length) % (sfx->total_length - loopstart) + loopstart;
+ else
+ ch->pos = sfx->total_length;
+ ch->end = paintedtime + sfx->total_length - ch->pos;
+ }
+ }
+
+ ltime = paintedtime;
while (ltime < end)
- { // paint up to end
+ {
+ qboolean stop_paint;
+
+ // paint up to end
if (ch->end < end)
- count = ch->end - ltime;
+ count = (int)ch->end - ltime;
else
count = end - ltime;
if (count > 0)
- {
- if (sc->width == 1)
- SND_PaintChannelFrom8(ch, sc, count);
+ {
+ if (ch->leftvol > 255)
+ ch->leftvol = 255;
+ if (ch->rightvol > 255)
+ ch->rightvol = 255;
+
+ if (sfx->format.width == 1)
+ stop_paint = !SND_PaintChannelFrom8 (ch, count);
else
- SND_PaintChannelFrom16(ch, sc, count);
-
- ltime += count;
+ stop_paint = !SND_PaintChannelFrom16 (ch, count);
+
+ if (!stop_paint)
+ {
+ ltime += count;
+ ch->lastptime = ltime;
+ }
}
+ else
+ stop_paint = false;
- // if at end of loop, restart
if (ltime >= ch->end)
{
- if (sc->loopstart >= 0)
+ // if at end of loop, restart
+ if ((sfx->loopstart >= 0 || (ch->flags & CHANNELFLAG_FORCELOOP)) && !stop_paint)
{
- ch->pos = sc->loopstart;
- ch->end = ltime + sc->length - ch->pos;
- }
- else
- { // channel just stopped
- ch->sfx = NULL;
- break;
+ ch->pos = bound(0, sfx->loopstart, (int)sfx->total_length - 1);
+ ch->end = ltime + sfx->total_length - ch->pos;
}
+ // channel just stopped
+ else
+ stop_paint = true;
+ }
+
+ if (stop_paint)
+ {
+ S_StopChannel (ch - channels);
+ break;
}
}
-
}
- // transfer out according to DMA format
+ // transfer out according to DMA format
+ S_CaptureAVISound (paintbuffer, end - paintedtime);
S_TransferPaintBuffer(end);
paintedtime = end;
}
}
-void SND_InitScaletable (void)
+
+// TODO: Try to merge SND_PaintChannelFrom8 and SND_PaintChannelFrom16
+qboolean SND_PaintChannelFrom8 (channel_t *ch, int count)
{
- int i, j;
-
- for (i=0 ; i<32 ; i++)
- for (j=0 ; j<256 ; j++)
- snd_scaletable[i][j] = ((signed char)j) * i * 8;
-}
+ int snd_vol, leftvol, rightvol;
+ const signed char *sfx;
+ const sfxbuffer_t *sb;
+ int i;
+
+ // If this channel manages its own volume
+ if (ch->flags & CHANNELFLAG_FULLVOLUME)
+ snd_vol = 256;
+ else
+ snd_vol = volume.value * 256;
+ leftvol = ch->leftvol * snd_vol;
+ rightvol = ch->rightvol * snd_vol;
-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];
- if (sc->stereo) // LordHavoc: stereo sound support, and optimizations
- {
- sfx = (unsigned char *)sc->data + ch->pos * 2;
+ sb = ch->sfx->fetcher->getsb (ch, ch->pos, count);
+ if (sb == NULL)
+ return false;
- for (i=0 ; i<count ; i++)
+ // Stereo sound support
+ if (ch->sfx->format.channels == 2)
+ {
+ sfx = (signed char *)sb->data + (ch->pos - sb->offset) * 2;
+ for (i = 0;i < count;i++)
{
- paintbuffer[i].left += lscale[*sfx++];
- paintbuffer[i].right += rscale[*sfx++];
+ paintbuffer[i].left += (*sfx++ * leftvol) >> 8;
+ paintbuffer[i].right += (*sfx++ * rightvol) >> 8;
}
-
}
else
{
- sfx = (unsigned char *)sc->data + ch->pos;
-
- for (i=0 ; i<count ; i++)
+ sfx = (signed char *)sb->data + ch->pos - sb->offset;
+ for (i = 0;i < count;i++)
{
- paintbuffer[i].left += lscale[*sfx];
- paintbuffer[i].right += rscale[*sfx++];
+ paintbuffer[i].left += (*sfx * leftvol) >> 8;
+ paintbuffer[i].right += (*sfx++ * rightvol) >> 8;
}
-
}
ch->pos += count;
+ return true;
}
-void SND_PaintChannelFrom16 (channel_t *ch, sfxcache_t *sc, int count)
+qboolean SND_PaintChannelFrom16 (channel_t *ch, int count)
{
-// int data;
-// int left, right;
- int leftvol, rightvol;
+ int snd_vol, leftvol, rightvol;
signed short *sfx;
- int i;
+ const sfxbuffer_t *sb;
+ int i;
+
+ // If this channel manages its own volume
+ if (ch->flags & CHANNELFLAG_FULLVOLUME)
+ snd_vol = 256;
+ else
+ snd_vol = volume.value * 256;
+
+ leftvol = ch->leftvol * snd_vol;
+ rightvol = ch->rightvol * snd_vol;
+
+ sb = ch->sfx->fetcher->getsb (ch, ch->pos, count);
+ if (sb == NULL)
+ return false;
- leftvol = ch->leftvol;
- rightvol = ch->rightvol;
- if (sc->stereo) // LordHavoc: stereo sound support, and optimizations
+ // Stereo sound support
+ if (ch->sfx->format.channels == 2)
{
- sfx = (signed short *)sc->data + ch->pos * 2;
+ sfx = (signed short *)sb->data + (ch->pos - sb->offset) * 2;
for (i=0 ; i<count ; i++)
{
- paintbuffer[i].left += (short) ((int) (*sfx++ * leftvol) >> 8);
- paintbuffer[i].right += (short) ((int) (*sfx++ * rightvol) >> 8);
+ paintbuffer[i].left += (*sfx++ * leftvol) >> 16;
+ paintbuffer[i].right += (*sfx++ * rightvol) >> 16;
}
}
else
{
- sfx = (signed short *)sc->data + ch->pos;
+ sfx = (signed short *)sb->data + ch->pos - sb->offset;
for (i=0 ; i<count ; i++)
{
- paintbuffer[i].left += (short) ((int) (*sfx * leftvol) >> 8);
- paintbuffer[i].right += (short) ((int) (*sfx++ * rightvol) >> 8);
+ paintbuffer[i].left += (*sfx * leftvol) >> 16;
+ paintbuffer[i].right += (*sfx++ * rightvol) >> 16;
}
}
ch->pos += count;
+ return true;
}
projects / xonotic / darkplaces.git / blobdiff