]> git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - snd_mem.c
zone: Use the generic linked list
[xonotic/darkplaces.git] / snd_mem.c
index 2b061f454330b6a5ab1d830cf1e60ff55f38ec5c..519ef0e27924a3049b533a8c6ee33ed64208161e 100644 (file)
--- a/snd_mem.c
+++ b/snd_mem.c
@@ -19,134 +19,64 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
 
 
-#include "quakedef.h"
+#include "darkplaces.h"
 
 #include "snd_main.h"
 #include "snd_ogg.h"
 #include "snd_wav.h"
+#ifdef USEXMP
+#include "snd_xmp.h"
+#endif
+#include "sound.h"
 
+void SCR_PushLoadingScreen (const char *, float);
+void SCR_PopLoadingScreen (qbool);
 
 /*
-================
-ResampleSfx
-================
+====================
+Snd_CreateRingBuffer
+
+If "buffer" is NULL, the function allocates one buffer of "sampleframes" sample frames itself
+(if "sampleframes" is 0, the function chooses the size).
+====================
 */
-size_t ResampleSfx (const qbyte *in_data, size_t in_length, const snd_format_t* in_format, qbyte *out_data, const char* sfxname)
+snd_ringbuffer_t *Snd_CreateRingBuffer (const snd_format_t* format, unsigned int sampleframes, void* buffer)
 {
-       size_t srclength, outcount, i;
+       snd_ringbuffer_t *ringbuffer;
 
-       srclength = in_length * in_format->channels;
-       outcount = (double)in_length * shm->format.speed / in_format->speed;
+       // If the caller provides a buffer, it must give us its size
+       if (sampleframes == 0 && buffer != NULL)
+               return NULL;
 
-       //Con_DPrintf("ResampleSfx(%s): %d samples @ %dHz -> %d samples @ %dHz\n",
-       //                      sfxname, in_length, in_format->speed, outcount, shm->format.speed);
+       ringbuffer = (snd_ringbuffer_t*)Mem_Alloc(snd_mempool, sizeof (*ringbuffer));
+       memset(ringbuffer, 0, sizeof(*ringbuffer));
+       memcpy(&ringbuffer->format, format, sizeof(ringbuffer->format));
 
-       // Trivial case (direct transfer)
-       if (in_format->speed == shm->format.speed)
+       // If we haven't been given a buffer
+       if (buffer == NULL)
        {
-               if (in_format->width == 1)
-               {
-                       for (i = 0; i < srclength; i++)
-                               ((signed char*)out_data)[i] = in_data[i] - 128;
-               }
-               else  // if (in_format->width == 2)
-                       memcpy (out_data, in_data, srclength * in_format->width);
-       }
+               unsigned int maxframes;
+               size_t memsize;
+
+               if (sampleframes == 0)
+                       maxframes = (format->speed + 1) / 2;  // Make the sound buffer large enough for containing 0.5 sec of sound
+               else
+                       maxframes = sampleframes;
 
-       // General case (linear interpolation with a fixed-point fractional
-       // step, 18-bit integer part and 14-bit fractional part)
-       // Can handle up to 2^18 (262144) samples per second (> 96KHz stereo)
-       #define FRACTIONAL_BITS 14
-       #define FRACTIONAL_MASK ((1 << FRACTIONAL_BITS) - 1)
-       #define INTEGER_BITS (sizeof(samplefrac)*8 - FRACTIONAL_BITS)
+               memsize = maxframes * format->width * format->channels;
+               ringbuffer->ring = (unsigned char *) Mem_Alloc(snd_mempool, memsize);
+               ringbuffer->maxframes = maxframes;
+       }
        else
        {
-               const unsigned int fracstep = (double)in_format->speed / shm->format.speed * (1 << FRACTIONAL_BITS);
-               size_t remain_in = srclength, total_out = 0;
-               unsigned int samplefrac;
-               const qbyte *in_ptr = in_data;
-               qbyte *out_ptr = out_data;
-
-               // Check that we can handle one second of that sound
-               if (in_format->speed * in_format->channels > (1 << INTEGER_BITS))
-               {
-                       Con_Printf ("ResampleSfx: sound quality too high for resampling (%uHz, %u channel(s))",
-                                          in_format->speed, in_format->channels);
-                       return 0;
-               }
-
-               // We work 1 sec at a time to make sure we don't accumulate any
-               // significant error when adding "fracstep" over several seconds, and
-               // also to be able to handle very long sounds.
-               while (total_out < outcount)
-               {
-                       size_t tmpcount;
-
-                       samplefrac = 0;
-
-                       // If more than 1 sec of sound remains to be converted
-                       if (outcount - total_out > shm->format.speed)
-                               tmpcount = shm->format.speed;
-                       else
-                               tmpcount = outcount - total_out;
-
-                       // Convert up to 1 sec of sound
-                       for (i = 0; i < tmpcount; i++)
-                       {
-                               unsigned int j = 0;
-                               unsigned int srcsample = (samplefrac >> FRACTIONAL_BITS) * in_format->channels;
-                               int a, b;
-
-                               // 16 bit samples
-                               if (in_format->width == 2)
-                               {
-                                       for (j = 0; j < in_format->channels; j++, srcsample++)
-                                       {
-                                               // No value to interpolate with?
-                                               if (srcsample + in_format->channels < remain_in)
-                                               {
-                                                       a = ((const short*)in_ptr)[srcsample];
-                                                       b = ((const short*)in_ptr)[srcsample + in_format->channels];
-                                                       *((short*)out_ptr) = (((b - a) * (samplefrac & FRACTIONAL_MASK)) >> FRACTIONAL_BITS) + a;
-                                               }
-                                               else
-                                                       *((short*)out_ptr) = ((const short*)in_ptr)[srcsample];
-
-                                               out_ptr += sizeof (short);
-                                       }
-                               }
-                               // 8 bit samples
-                               else  // if (in_format->width == 1)
-                               {
-                                       for (j = 0; j < in_format->channels; j++, srcsample++)
-                                       {
-                                               // No more value to interpolate with?
-                                               if (srcsample + in_format->channels < remain_in)
-                                               {
-                                                       a = ((const qbyte*)in_ptr)[srcsample] - 128;
-                                                       b = ((const qbyte*)in_ptr)[srcsample + in_format->channels] - 128;
-                                                       *((signed char*)out_ptr) = (((b - a) * (samplefrac & FRACTIONAL_MASK)) >> FRACTIONAL_BITS) + a;
-                                               }
-                                               else
-                                                       *((signed char*)out_ptr) = ((const qbyte*)in_ptr)[srcsample] - 128;
-
-                                               out_ptr += sizeof (signed char);
-                                       }
-                               }
-
-                               samplefrac += fracstep;
-                       }
-
-                       // Update the counters and the buffer position
-                       remain_in -= in_format->speed * in_format->channels;
-                       in_ptr += in_format->speed * in_format->channels * in_format->width;
-                       total_out += tmpcount;
-               }
+               ringbuffer->ring = (unsigned char *) buffer;
+               ringbuffer->maxframes = sampleframes;
        }
 
-       return outcount;
+       return ringbuffer;
 }
 
+
 //=============================================================================
 
 /*
@@ -154,79 +84,91 @@ size_t ResampleSfx (const qbyte *in_data, size_t in_length, const snd_format_t*
 S_LoadSound
 ==============
 */
-qboolean S_LoadSound (sfx_t *s, qboolean complain)
+qbool S_LoadSound (sfx_t *sfx, qbool complain)
 {
        char namebuffer[MAX_QPATH + 16];
        size_t len;
 
-       if (!shm || !shm->format.speed)
-               return false;
+       // See if already loaded
+       if (sfx->fetcher != NULL)
+               return true;
 
        // If we weren't able to load it previously, no need to retry
-       if (s->flags & SFXFLAG_FILEMISSING)
+       // Note: S_PrecacheSound clears this flag to cause a retry
+       if (sfx->flags & SFXFLAG_FILEMISSING)
                return false;
 
-       // See if in memory
-       if (s->fetcher != NULL)
-       {
-               if (s->format.speed != shm->format.speed)
-                       Con_Printf ("S_LoadSound: sound %s hasn't been resampled (%uHz instead of %uHz)", s->name);
-               return true;
-       }
+       // No sound?
+       if (snd_renderbuffer == NULL)
+               return false;
+
+       // Initialize volume peak to 0; if ReplayGain is supported, the loader will change this away
+       sfx->volume_peak = 0.0;
+
+       if (developer_loading.integer)
+               Con_Printf("loading sound %s\n", sfx->name);
 
-       // LordHavoc: if the sound filename does not begin with sound/, try adding it
-       if (strncasecmp(s->name, "sound/", 6))
+       SCR_PushLoadingScreen(sfx->name, 1);
+
+       // LadyHavoc: if the sound filename does not begin with sound/, try adding it
+       if (strncasecmp(sfx->name, "sound/", 6))
        {
-               len = dpsnprintf (namebuffer, sizeof(namebuffer), "sound/%s", s->name);
-               if (len < 0)
+               dpsnprintf (namebuffer, sizeof(namebuffer), "sound/%s", sfx->name);
+               len = strlen(namebuffer);
+               if (len >= 4 && !strcasecmp (namebuffer + len - 4, ".wav"))
                {
-                       // name too long
-                       Con_Printf("S_LoadSound: name \"%s\" is too long\n", s->name);
-                       return false;
+                       if (S_LoadWavFile (namebuffer, sfx))
+                               goto loaded;
+                       memcpy (namebuffer + len - 3, "ogg", 4);
                }
-               if (S_LoadWavFile (namebuffer, s))
-                       return true;
-               if (len >= 4 && !strcasecmp (namebuffer + len - 4, ".wav"))
-                       strcpy (namebuffer + len - 3, "ogg");
-               if (OGG_LoadVorbisFile (namebuffer, s))
-                       return true;
+               if (len >= 4 && !strcasecmp (namebuffer + len - 4, ".ogg"))
+               {
+                       if (OGG_LoadVorbisFile (namebuffer, sfx))
+                               goto loaded;
+               }
+#ifdef USEXMP
+               else if (len >= 1)
+               {
+                       if (XMP_LoadModFile (namebuffer, sfx))
+                               goto loaded;
+               }
+#endif
        }
 
-       // LordHavoc: then try without the added sound/ as wav and ogg
-       len = dpsnprintf (namebuffer, sizeof(namebuffer), "%s", s->name);
-       if (len < 0)
+       // LadyHavoc: then try without the added sound/ as wav and ogg
+       dpsnprintf (namebuffer, sizeof(namebuffer), "%s", sfx->name);
+       len = strlen(namebuffer);
+       // request foo.wav: tries foo.wav, then foo.ogg
+       // request foo.ogg: tries foo.ogg only
+       // request foo.mod: tries foo.mod only
+       if (len >= 4 && !strcasecmp (namebuffer + len - 4, ".wav"))
        {
-               // name too long
-               Con_Printf("S_LoadSound: name \"%s\" is too long\n", s->name);
-               return false;
+               if (S_LoadWavFile (namebuffer, sfx))
+                       goto loaded;
+               memcpy (namebuffer + len - 3, "ogg", 4);
        }
-       if (S_LoadWavFile (namebuffer, s))
-               return true;
-       if (len >= 4 && !strcasecmp (namebuffer + len - 4, ".wav"))
-               strcpy (namebuffer + len - 3, "ogg");
-       if (OGG_LoadVorbisFile (namebuffer, s))
-               return true;
+       if (len >= 4 && !strcasecmp (namebuffer + len - 4, ".ogg"))
+       {
+               if (OGG_LoadVorbisFile (namebuffer, sfx))
+                       goto loaded;
+       }
+#ifdef USEXMP
+       else if (len >= 1)
+       {
+               if (XMP_LoadModFile (namebuffer, sfx))
+                       goto loaded;
+       }
+#endif
 
        // Can't load the sound!
-       s->flags |= SFXFLAG_FILEMISSING;
+       sfx->flags |= SFXFLAG_FILEMISSING;
        if (complain)
-               Con_Printf("S_LoadSound: Couldn't load \"%s\"\n", s->name);
-       return false;
-}
+               Con_Printf(CON_ERROR "Failed to load sound \"%s\"\n", sfx->name);
 
-void S_UnloadSound (sfx_t *s)
-{
-       if (s->fetcher != NULL)
-       {
-               unsigned int i;
-
-               // Stop all channels that use this sound
-               for (i = 0; i < total_channels ; i++)
-                       if (channels[i].sfx == s)
-                               S_StopChannel (i);
+       SCR_PopLoadingScreen(false);
+       return false;
 
-               s->fetcher = NULL;
-               s->fetcher_data = NULL;
-               Mem_FreePool(&s->mempool);
-       }
+loaded:
+       SCR_PopLoadingScreen(false);
+       return true;
 }