]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - snd_mem.c
Tomaz's gl_polyblend patch to control intensity of view blends
[xonotic/darkplaces.git] / snd_mem.c
index a54e84c74f3ee8155894ec7797da04dd43e948bb..a10b2631f62959b047ddadabd51f9219af3d86de 100644 (file)
--- a/snd_mem.c
+++ b/snd_mem.c
@@ -21,59 +21,60 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 #include "quakedef.h"
 
-qbyte *S_Alloc (int size);
+#include "snd_ogg.h"
+#include "snd_wav.h"
+
 
 /*
 ================
 ResampleSfx
 ================
 */
-void ResampleSfx (sfxcache_t *sc, qbyte *data, char *name)
+size_t ResampleSfx (const qbyte *in_data, size_t in_length, const snd_format_t* in_format, qbyte *out_data, const char* sfxname)
 {
-       int i, outcount, srcsample, srclength, samplefrac, fracstep;
+       int samplefrac, fracstep;
+       size_t i, srcsample, srclength, outcount;
 
        // this is usually 0.5 (128), 1 (256), or 2 (512)
-       fracstep = ((double) sc->speed / (double) shm->speed) * 256.0;
-
-       srclength = sc->length << sc->stereo;
+       fracstep = ((double) in_format->speed / (double) shm->format.speed) * 256.0;
 
-       outcount = (double) sc->length * (double) shm->speed / (double) sc->speed;
-       sc->length = outcount;
-       if (sc->loopstart != -1)
-               sc->loopstart = (double) sc->loopstart * (double) shm->speed / (double) sc->speed;
+       srclength = in_length * in_format->channels;
 
-       sc->speed = shm->speed;
+       outcount = (double) in_length * (double) shm->format.speed / (double) in_format->speed;
+       Con_DPrintf("ResampleSfx: resampling sound \"%s\" from %dHz to %dHz (%d samples to %d samples)\n",
+                               sfxname, in_format->speed, shm->format.speed, in_length, outcount);
 
 // resample / decimate to the current source rate
 
        if (fracstep == 256)
        {
-               if (sc->width == 1) // 8bit
+               // fast case for direct transfer
+               if (in_format->width == 1) // 8bit
                        for (i = 0;i < srclength;i++)
-                               ((signed char *)sc->data)[i] = ((unsigned char *)data)[i] - 128;
-               else //if (sc->width == 2) // 16bit
+                               ((signed char *)out_data)[i] = ((unsigned char *)in_data)[i] - 128;
+               else //if (sb->width == 2) // 16bit
                        for (i = 0;i < srclength;i++)
-                               ((short *)sc->data)[i] = LittleShort (((short *)data)[i]);
+                               ((short *)out_data)[i] = ((short *)in_data)[i];
        }
        else
        {
-// general case
-               Con_DPrintf("ResampleSfx: resampling sound %s\n", name);
+               // general case
                samplefrac = 0;
                if ((fracstep & 255) == 0) // skipping points on perfect multiple
                {
                        srcsample = 0;
                        fracstep >>= 8;
-                       if (sc->width == 2)
+                       if (in_format->width == 2)
                        {
-                               short *out = (void *)sc->data, *in = (void *)data;
-                               if (sc->stereo) // LordHavoc: stereo sound support
+                               short *out = (short*)out_data;
+                               const short *in = (const short*)in_data;
+                               if (in_format->channels == 2) // LordHavoc: stereo sound support
                                {
                                        fracstep <<= 1;
                                        for (i=0 ; i<outcount ; i++)
                                        {
-                                               *out++ = LittleShort (in[srcsample  ]);
-                                               *out++ = LittleShort (in[srcsample+1]);
+                                               *out++ = in[srcsample  ];
+                                               *out++ = in[srcsample+1];
                                                srcsample += fracstep;
                                        }
                                }
@@ -81,16 +82,16 @@ void ResampleSfx (sfxcache_t *sc, qbyte *data, char *name)
                                {
                                        for (i=0 ; i<outcount ; i++)
                                        {
-                                               *out++ = LittleShort (in[srcsample  ]);
+                                               *out++ = in[srcsample];
                                                srcsample += fracstep;
                                        }
                                }
                        }
                        else
                        {
-                               signed char *out = (void *)sc->data;
-                               unsigned char *in = (void *)data;
-                               if (sc->stereo) // LordHavoc: stereo sound support
+                               signed char *out = out_data;
+                               const unsigned char *in = in_data;
+                               if (in_format->channels == 2)
                                {
                                        fracstep <<= 1;
                                        for (i=0 ; i<outcount ; i++)
@@ -114,10 +115,11 @@ void ResampleSfx (sfxcache_t *sc, qbyte *data, char *name)
                {
                        int sample;
                        int a, b;
-                       if (sc->width == 2)
+                       if (in_format->width == 2)
                        {
-                               short *out = (void *)sc->data, *in = (void *)data;
-                               if (sc->stereo) // LordHavoc: stereo sound support
+                               short *out = (short*)out_data;
+                               const short *in = (const short*)in_data;
+                               if (in_format->channels == 2)
                                {
                                        for (i=0 ; i<outcount ; i++)
                                        {
@@ -157,9 +159,9 @@ void ResampleSfx (sfxcache_t *sc, qbyte *data, char *name)
                        }
                        else
                        {
-                               signed char *out = (void *)sc->data;
-                               unsigned char *in = (void *)data;
-                               if (sc->stereo) // LordHavoc: stereo sound support
+                               signed char *out = out_data;
+                               const unsigned char *in = in_data;
+                               if (in_format->channels == 2)
                                {
                                        for (i=0 ; i<outcount ; i++)
                                        {
@@ -200,10 +202,7 @@ void ResampleSfx (sfxcache_t *sc, qbyte *data, char *name)
                }
        }
 
-       // LordHavoc: use this for testing if it ever becomes useful again
-#if 0
-       COM_WriteFile (va("sound/%s.pcm", name), sc->data, (sc->length << sc->stereo) * sc->width);
-#endif
+       return outcount;
 }
 
 //=============================================================================
@@ -213,261 +212,67 @@ void ResampleSfx (sfxcache_t *sc, qbyte *data, char *name)
 S_LoadSound
 ==============
 */
-sfxcache_t *S_LoadSound (sfx_t *s)
+qboolean S_LoadSound (sfx_t *s, int complain)
 {
-    char       namebuffer[256];
-       qbyte   *data;
-       wavinfo_t       info;
-       int             len;
-       sfxcache_t      *sc;
-
-// see if still in memory
-       if (s->sfxcache)
-               return s->sfxcache;
-
-//Con_Printf ("S_LoadSound: %x\n", (int)stackbuf);
-// load it in
-       strcpy(namebuffer, "sound/");
-       strcat(namebuffer, s->name);
-
-//     Con_Printf ("loading %s\n",namebuffer);
-
-       data = COM_LoadFile(namebuffer, false);
-
-       if (!data)
+       char namebuffer[MAX_QPATH];
+       size_t len;
+       qboolean modified_name = false;
+
+       // see if still in memory
+       if (!shm || !shm->format.speed)
+               return false;
+       if (s->fetcher != NULL)
        {
-               Con_Printf ("Couldn't load %s\n", namebuffer);
-               return NULL;
+               if (s->format.speed != shm->format.speed)
+                       Sys_Error ("S_LoadSound: sound %s hasn't been resampled (%uHz instead of %uHz)", s->name);
+               return true;
        }
 
-       info = GetWavinfo (s->name, data, com_filesize);
-       // LordHavoc: stereo sounds are now allowed (intended for music)
-       if (info.channels < 1 || info.channels > 2)
-       {
-               Con_Printf ("%s has an unsupported number of channels (%i)\n",s->name, info.channels);
-               Mem_Free(data);
-               return NULL;
-       }
-       /*
-       if (info.channels != 1)
-       {
-               Con_Printf ("%s is a stereo sample\n",s->name);
-               return NULL;
-       }
-       */
+       len = snprintf (namebuffer, sizeof (namebuffer), "sound/%s", s->name);
+       if (len >= sizeof (namebuffer))
+               return false;
 
-       // calculate resampled length
-       len = (int) ((double) info.samples * (double) shm->speed / (double) info.rate);
-       len = len * info.width * info.channels;
+       // Try to load it as a WAV file
+       if (S_LoadWavFile (namebuffer, s))
+               return true;
 
-       // FIXME: add S_UnloadSounds or something?
-       Mem_FreePool(&s->mempool);
-       s->mempool = Mem_AllocPool(s->name);
-       sc = s->sfxcache = Mem_Alloc(s->mempool, len + sizeof(sfxcache_t));
-       if (!sc)
+       // Else, try to load it as an Ogg Vorbis file
+       if (!strcasecmp (namebuffer + len - 4, ".wav"))
        {
-               Mem_FreePool(&s->mempool);
-               Mem_Free(data);
-               return NULL;
+               strcpy (namebuffer + len - 3, "ogg");
+               modified_name = true;
        }
+       if (OGG_LoadVorbisFile (namebuffer, s))
+               return true;
 
-       sc->length = info.samples;
-       sc->loopstart = info.loopstart;
-       sc->speed = info.rate;
-       sc->width = info.width;
-       sc->stereo = info.channels == 2;
-
-       ResampleSfx (sc, data + info.dataofs, s->name);
-
-       Mem_Free(data);
-       return sc;
-}
-
-
-
-/*
-===============================================================================
-
-WAV loading
-
-===============================================================================
-*/
-
-
-qbyte  *data_p;
-qbyte  *iff_end;
-qbyte  *last_chunk;
-qbyte  *iff_data;
-int    iff_chunk_len;
-
-
-short GetLittleShort(void)
-{
-       short val = 0;
-       val = *data_p;
-       val = val + (*(data_p+1)<<8);
-       data_p += 2;
-       return val;
-}
-
-int GetLittleLong(void)
-{
-       int val = 0;
-       val = *data_p;
-       val = val + (*(data_p+1)<<8);
-       val = val + (*(data_p+2)<<16);
-       val = val + (*(data_p+3)<<24);
-       data_p += 4;
-       return val;
-}
-
-void FindNextChunk(char *name)
-{
-       while (1)
+       // Can't load the sound!
+       if (!complain)
+               s->flags |= SFXFLAG_SILENTLYMISSING;
+       else
+               s->flags &= ~SFXFLAG_SILENTLYMISSING;
+       if (complain)
        {
-               data_p=last_chunk;
-
-               if (data_p >= iff_end)
-               {       // didn't find the chunk
-                       data_p = NULL;
-                       return;
-               }
-
-               data_p += 4;
-               iff_chunk_len = GetLittleLong();
-               if (iff_chunk_len < 0)
-               {
-                       data_p = NULL;
-                       return;
-               }
-//             if (iff_chunk_len > 1024*1024)
-//                     Sys_Error ("FindNextChunk: %i length is past the 1 meg sanity limit", iff_chunk_len);
-               data_p -= 8;
-               last_chunk = data_p + 8 + ( (iff_chunk_len + 1) & ~1 );
-               if (!strncmp(data_p, name, 4))
-                       return;
+               if (modified_name)
+                       strcpy (namebuffer + len - 3, "wav");
+               Con_Printf("Couldn't load %s\n", namebuffer);
        }
+       return false;
 }
 
-void FindChunk(char *name)
+void S_UnloadSound(sfx_t *s)
 {
-       last_chunk = iff_data;
-       FindNextChunk (name);
-}
-
-
-void DumpChunks(void)
-{
-       char    str[5];
-       
-       str[4] = 0;
-       data_p=iff_data;
-       do
-       {
-               memcpy (str, data_p, 4);
-               data_p += 4;
-               iff_chunk_len = GetLittleLong();
-               Con_Printf ("0x%x : %s (%d)\n", (int)(data_p - 4), str, iff_chunk_len);
-               data_p += (iff_chunk_len + 1) & ~1;
-       } while (data_p < iff_end);
-}
-
-/*
-============
-GetWavinfo
-============
-*/
-wavinfo_t GetWavinfo (char *name, qbyte *wav, int wavlength)
-{
-       wavinfo_t       info;
-       int     i;
-       int     format;
-       int             samples;
-
-       memset (&info, 0, sizeof(info));
-
-       if (!wav)
-               return info;
-
-       iff_data = wav;
-       iff_end = wav + wavlength;
-
-// find "RIFF" chunk
-       FindChunk("RIFF");
-       if (!(data_p && !strncmp(data_p+8, "WAVE", 4)))
+       if (s->fetcher != NULL)
        {
-               Con_Printf("Missing RIFF/WAVE chunks\n");
-               return info;
-       }
+               unsigned int i;
 
-// get "fmt " chunk
-       iff_data = data_p + 12;
-// DumpChunks ();
-
-       FindChunk("fmt ");
-       if (!data_p)
-       {
-               Con_Printf("Missing fmt chunk\n");
-               return info;
-       }
-       data_p += 8;
-       format = GetLittleShort();
-       if (format != 1)
-       {
-               Con_Printf("Microsoft PCM format only\n");
-               return info;
-       }
-
-       info.channels = GetLittleShort();
-       info.rate = GetLittleLong();
-       data_p += 4+2;
-       info.width = GetLittleShort() / 8;
-
-// get cue chunk
-       FindChunk("cue ");
-       if (data_p)
-       {
-               data_p += 32;
-               info.loopstart = GetLittleLong();
-//             Con_Printf("loopstart=%d\n", sfx->loopstart);
-
-       // if the next chunk is a LIST chunk, look for a cue length marker
-               FindNextChunk ("LIST");
-               if (data_p)
-               {
-                       if (!strncmp (data_p + 28, "mark", 4))
-                       {       // this is not a proper parse, but it works with cooledit...
-                               data_p += 24;
-                               i = GetLittleLong ();   // samples in loop
-                               info.samples = info.loopstart + i;
-//                             Con_Printf("looped length: %i\n", i);
-                       }
-               }
-       }
-       else
-               info.loopstart = -1;
-
-// find data chunk
-       FindChunk("data");
-       if (!data_p)
-       {
-               Con_Printf("Missing data chunk\n");
-               return info;
-       }
-
-       data_p += 4;
-       samples = GetLittleLong () / info.width / info.channels;
+               s->fetcher = NULL;
+               s->fetcher_data = NULL;
+               Mem_FreePool(&s->mempool);
 
-       if (info.samples)
-       {
-               if (samples < info.samples)
-                       Host_Error ("Sound %s has a bad loop length", name);
+               // At this point, some per-channel data pointers may point to freed zones.
+               // Practically, it shouldn't be a problem; but it's wrong, so we fix that
+               for (i = 0; i < total_channels ; i++)
+                       if (channels[i].sfx == s)
+                               channels[i].fetcher_data = NULL;
        }
-       else
-               info.samples = samples;
-
-       info.dataofs = data_p - wav;
-
-       return info;
 }
-