ref: a3bdc179949956d759d1f866f86a25da44d378a3
parent: f26e260bbd9b31fafd7bbac1995e4538670cc214
author: Simon Howard <[email protected]>
date: Sun Sep 7 20:27:06 EDT 2008
Move s_sound.[ch] to doom/ Subversion-branch: /branches/raven-branch Subversion-revision: 1213
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -48,7 +48,6 @@
md5.c md5.h \
memio.c memio.h \
m_random.c m_random.h \
-s_sound.c s_sound.h \
tables.c tables.h \
v_video.c v_video.h \
v_patch.h \
--- a/src/doom/Makefile.am
+++ b/src/doom/Makefile.am
@@ -54,6 +54,7 @@
r_sky.c r_sky.h \
r_state.h \
r_things.c r_things.h \
+s_sound.c s_sound.h \
sounds.c sounds.h \
st_lib.c st_lib.h \
st_stuff.c st_stuff.h \
--- /dev/null
+++ b/src/doom/s_sound.c
@@ -1,0 +1,671 @@
+// Emacs style mode select -*- C++ -*-
+//-----------------------------------------------------------------------------
+//
+// Copyright(C) 1993-1996 Id Software, Inc.
+// Copyright(C) 2005 Simon Howard
+//
+// 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.
+//
+// DESCRIPTION: none
+//
+//-----------------------------------------------------------------------------
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "i_sound.h"
+#include "i_system.h"
+
+#include "doomfeatures.h"
+#include "deh_str.h"
+
+#include "doomstat.h"
+#include "doomtype.h"
+
+#include "sounds.h"
+#include "s_sound.h"
+
+#include "m_random.h"
+#include "m_argv.h"
+
+#include "p_local.h"
+#include "w_wad.h"
+#include "z_zone.h"
+
+// when to clip out sounds
+// Does not fit the large outdoor areas.
+
+#define S_CLIPPING_DIST (1200 * FRACUNIT)
+
+// Distance tp origin when sounds should be maxed out.
+// This should relate to movement clipping resolution
+// (see BLOCKMAP handling).
+// In the source code release: (160*FRACUNIT). Changed back to the
+// Vanilla value of 200 (why was this changed?)
+
+#define S_CLOSE_DIST (200 * FRACUNIT)
+
+// The range over which sound attenuates
+
+#define S_ATTENUATOR ((S_CLIPPING_DIST - S_CLOSE_DIST) >> FRACBITS)
+
+// Stereo separation
+
+#define S_STEREO_SWING (96 * FRACUNIT)
+
+#define NORM_PITCH 128
+#define NORM_PRIORITY 64
+#define NORM_SEP 128
+
+typedef struct
+{+ // sound information (if null, channel avail.)
+ sfxinfo_t *sfxinfo;
+
+ // origin of sound
+ mobj_t *origin;
+
+ // handle of the sound being played
+ int handle;
+
+} channel_t;
+
+// The set of channels available
+
+static channel_t *channels;
+
+// Maximum volume of a sound effect.
+// Internal default is max out of 0-15.
+
+int sfxVolume = 8;
+
+// Maximum volume of music.
+
+int musicVolume = 8;
+
+// Internal volume level, ranging from 0-127
+
+static int snd_SfxVolume;
+
+// Whether songs are mus_paused
+
+static boolean mus_paused;
+
+// Music currently being played
+
+static musicinfo_t *mus_playing = NULL;
+
+// Number of channels to use
+
+int numChannels = 8;
+
+//
+// Initializes sound stuff, including volume
+// Sets channels, SFX and music volume,
+// allocates channel buffer, sets S_sfx lookup.
+//
+
+void S_Init(int sfxVolume, int musicVolume)
+{ + int i;
+
+ I_InitSound();
+ I_InitMusic();
+
+ S_SetSfxVolume(sfxVolume);
+ S_SetMusicVolume(musicVolume);
+
+ // Allocating the internal channels for mixing
+ // (the maximum numer of sounds rendered
+ // simultaneously) within zone memory.
+ channels = Z_Malloc(numChannels*sizeof(channel_t), PU_STATIC, 0);
+
+ // Free all channels for use
+ for (i=0 ; i<numChannels ; i++)
+ {+ channels[i].sfxinfo = 0;
+ }
+
+ // no sounds are playing, and they are not mus_paused
+ mus_paused = 0;
+
+ // Note that sounds have not been cached (yet).
+ for (i=1 ; i<NUMSFX ; i++)
+ {+ S_sfx[i].lumpnum = S_sfx[i].usefulness = -1;
+ }
+}
+
+void S_Shutdown(void)
+{+ I_ShutdownSound();
+ I_ShutdownMusic();
+}
+
+static void S_StopChannel(int cnum)
+{+ int i;
+ channel_t *c;
+
+ c = &channels[cnum];
+
+ if (c->sfxinfo)
+ {+ // stop the sound playing
+
+ if (I_SoundIsPlaying(c->handle))
+ {+ I_StopSound(c->handle);
+ }
+
+ // check to see if other channels are playing the sound
+
+ for (i=0; i<numChannels; i++)
+ {+ if (cnum != i && c->sfxinfo == channels[i].sfxinfo)
+ {+ break;
+ }
+ }
+
+ // degrade usefulness of sound data
+
+ c->sfxinfo->usefulness--;
+ c->sfxinfo = NULL;
+ }
+}
+
+//
+// Per level startup code.
+// Kills playing sounds at start of level,
+// determines music if any, changes music.
+//
+
+void S_Start(void)
+{+ int cnum;
+ int mnum;
+
+ // kill all playing sounds at start of level
+ // (trust me - a good idea)
+ for (cnum=0 ; cnum<numChannels ; cnum++)
+ {+ if (channels[cnum].sfxinfo)
+ {+ S_StopChannel(cnum);
+ }
+ }
+
+ // start new music for the level
+ mus_paused = 0;
+
+ if (gamemode == commercial)
+ {+ mnum = mus_runnin + gamemap - 1;
+ }
+ else
+ {+ int spmus[]=
+ {+ // Song - Who? - Where?
+
+ mus_e3m4, // American e4m1
+ mus_e3m2, // Romero e4m2
+ mus_e3m3, // Shawn e4m3
+ mus_e1m5, // American e4m4
+ mus_e2m7, // Tim e4m5
+ mus_e2m4, // Romero e4m6
+ mus_e2m6, // J.Anderson e4m7 CHIRON.WAD
+ mus_e2m5, // Shawn e4m8
+ mus_e1m9, // Tim e4m9
+ };
+
+ if (gameepisode < 4)
+ {+ mnum = mus_e1m1 + (gameepisode-1)*9 + gamemap-1;
+ }
+ else
+ {+ mnum = spmus[gamemap-1];
+ }
+ }
+
+ S_ChangeMusic(mnum, true);
+}
+
+void S_StopSound(mobj_t *origin)
+{+ int cnum;
+
+ for (cnum=0 ; cnum<numChannels ; cnum++)
+ {+ if (channels[cnum].sfxinfo && channels[cnum].origin == origin)
+ {+ S_StopChannel(cnum);
+ break;
+ }
+ }
+}
+
+//
+// S_GetChannel :
+// If none available, return -1. Otherwise channel #.
+//
+
+static int S_GetChannel(mobj_t *origin, sfxinfo_t *sfxinfo)
+{+ // channel number to use
+ int cnum;
+
+ channel_t* c;
+
+ // Find an open channel
+ for (cnum=0 ; cnum<numChannels ; cnum++)
+ {+ if (!channels[cnum].sfxinfo)
+ {+ break;
+ }
+ else if (origin && channels[cnum].origin == origin)
+ {+ S_StopChannel(cnum);
+ break;
+ }
+ }
+
+ // None available
+ if (cnum == numChannels)
+ {+ // Look for lower priority
+ for (cnum=0 ; cnum<numChannels ; cnum++)
+ {+ if (channels[cnum].sfxinfo->priority >= sfxinfo->priority)
+ {+ break;
+ }
+ }
+
+ if (cnum == numChannels)
+ {+ // FUCK! No lower priority. Sorry, Charlie.
+ return -1;
+ }
+ else
+ {+ // Otherwise, kick out lower priority.
+ S_StopChannel(cnum);
+ }
+ }
+
+ c = &channels[cnum];
+
+ // channel is decided to be cnum.
+ c->sfxinfo = sfxinfo;
+ c->origin = origin;
+
+ return cnum;
+}
+
+//
+// Changes volume and stereo-separation variables
+// from the norm of a sound effect to be played.
+// If the sound is not audible, returns a 0.
+// Otherwise, modifies parameters and returns 1.
+//
+
+static int S_AdjustSoundParams(mobj_t *listener, mobj_t *source,
+ int *vol, int *sep)
+{+ fixed_t approx_dist;
+ fixed_t adx;
+ fixed_t ady;
+ angle_t angle;
+
+ // calculate the distance to sound origin
+ // and clip it if necessary
+ adx = abs(listener->x - source->x);
+ ady = abs(listener->y - source->y);
+
+ // From _GG1_ p.428. Appox. eucledian distance fast.
+ approx_dist = adx + ady - ((adx < ady ? adx : ady)>>1);
+
+ if (gamemap != 8 && approx_dist > S_CLIPPING_DIST)
+ {+ return 0;
+ }
+
+ // angle of source to listener
+ angle = R_PointToAngle2(listener->x,
+ listener->y,
+ source->x,
+ source->y);
+
+ if (angle > listener->angle)
+ {+ angle = angle - listener->angle;
+ }
+ else
+ {+ angle = angle + (0xffffffff - listener->angle);
+ }
+
+ angle >>= ANGLETOFINESHIFT;
+
+ // stereo separation
+ *sep = 128 - (FixedMul(S_STEREO_SWING, finesine[angle]) >> FRACBITS);
+
+ // volume calculation
+ if (approx_dist < S_CLOSE_DIST)
+ {+ *vol = snd_SfxVolume;
+ }
+ else if (gamemap == 8)
+ {+ if (approx_dist > S_CLIPPING_DIST)
+ {+ approx_dist = S_CLIPPING_DIST;
+ }
+
+ *vol = 15+ ((snd_SfxVolume-15)
+ *((S_CLIPPING_DIST - approx_dist)>>FRACBITS))
+ / S_ATTENUATOR;
+ }
+ else
+ {+ // distance effect
+ *vol = (snd_SfxVolume
+ * ((S_CLIPPING_DIST - approx_dist)>>FRACBITS))
+ / S_ATTENUATOR;
+ }
+
+ return (*vol > 0);
+}
+
+void S_StartSound(void *origin_p, int sfx_id)
+{+ sfxinfo_t *sfx;
+ mobj_t *origin;
+ int rc;
+ int sep;
+ int priority;
+ int cnum;
+ int volume;
+
+ origin = (mobj_t *) origin_p;
+ volume = snd_SfxVolume;
+
+ // check for bogus sound #
+ if (sfx_id < 1 || sfx_id > NUMSFX)
+ {+ I_Error("Bad sfx #: %d", sfx_id);+ }
+
+ sfx = &S_sfx[sfx_id];
+
+ // Initialize sound parameters
+ if (sfx->link)
+ {+ priority = sfx->priority;
+ volume += sfx->volume;
+
+ if (volume < 1)
+ {+ return;
+ }
+
+ if (volume > snd_SfxVolume)
+ {+ volume = snd_SfxVolume;
+ }
+ }
+ else
+ {+ priority = NORM_PRIORITY;
+ }
+
+
+ // Check to see if it is audible,
+ // and if not, modify the params
+ if (origin && origin != players[consoleplayer].mo)
+ {+ rc = S_AdjustSoundParams(players[consoleplayer].mo,
+ origin,
+ &volume,
+ &sep);
+
+ if (origin->x == players[consoleplayer].mo->x
+ && origin->y == players[consoleplayer].mo->y)
+ { + sep = NORM_SEP;
+ }
+
+ if (!rc)
+ {+ return;
+ }
+ }
+ else
+ {+ sep = NORM_SEP;
+ }
+
+ // kill old sound
+ S_StopSound(origin);
+
+ // try to find a channel
+ cnum = S_GetChannel(origin, sfx);
+
+ if (cnum < 0)
+ {+ return;
+ }
+
+ // increase the usefulness
+ if (sfx->usefulness++ < 0)
+ {+ sfx->usefulness = 1;
+ }
+
+ if (sfx->lumpnum < 0)
+ {+ sfx->lumpnum = I_GetSfxLumpNum(sfx);
+ }
+
+ channels[cnum].handle = I_StartSound(sfx, cnum, volume, sep);
+}
+
+//
+// Stop and resume music, during game PAUSE.
+//
+
+void S_PauseSound(void)
+{+ if (mus_playing && !mus_paused)
+ {+ I_PauseSong();
+ mus_paused = true;
+ }
+}
+
+void S_ResumeSound(void)
+{+ if (mus_playing && mus_paused)
+ {+ I_ResumeSong();
+ mus_paused = false;
+ }
+}
+
+//
+// Updates music & sounds
+//
+
+void S_UpdateSounds(mobj_t *listener)
+{+ int audible;
+ int cnum;
+ int volume;
+ int sep;
+ sfxinfo_t* sfx;
+ channel_t* c;
+
+ for (cnum=0; cnum<numChannels; cnum++)
+ {+ c = &channels[cnum];
+ sfx = c->sfxinfo;
+
+ if (c->sfxinfo)
+ {+ if (I_SoundIsPlaying(c->handle))
+ {+ // initialize parameters
+ volume = snd_SfxVolume;
+ sep = NORM_SEP;
+
+ if (sfx->link)
+ {+ volume += sfx->volume;
+ if (volume < 1)
+ {+ S_StopChannel(cnum);
+ continue;
+ }
+ else if (volume > snd_SfxVolume)
+ {+ volume = snd_SfxVolume;
+ }
+ }
+
+ // check non-local sounds for distance clipping
+ // or modify their params
+ if (c->origin && listener != c->origin)
+ {+ audible = S_AdjustSoundParams(listener,
+ c->origin,
+ &volume,
+ &sep);
+
+ if (!audible)
+ {+ S_StopChannel(cnum);
+ }
+ else
+ {+ I_UpdateSoundParams(c->handle, volume, sep);
+ }
+ }
+ }
+ else
+ {+ // if channel is allocated but sound has stopped,
+ // free it
+ S_StopChannel(cnum);
+ }
+ }
+ }
+}
+
+void S_SetMusicVolume(int volume)
+{+ if (volume < 0 || volume > 127)
+ {+ I_Error("Attempt to set music volume at %d",+ volume);
+ }
+
+ I_SetMusicVolume(volume);
+}
+
+void S_SetSfxVolume(int volume)
+{+ if (volume < 0 || volume > 127)
+ {+ I_Error("Attempt to set sfx volume at %d", volume);+ }
+
+ snd_SfxVolume = volume;
+}
+
+//
+// Starts some music with the music id found in sounds.h.
+//
+
+void S_StartMusic(int m_id)
+{+ S_ChangeMusic(m_id, false);
+}
+
+void S_ChangeMusic(int musicnum, int looping)
+{+ musicinfo_t *music = NULL;
+ char namebuf[9];
+ void *handle;
+
+ if (musicnum <= mus_None || musicnum >= NUMMUSIC)
+ {+ I_Error("Bad music number %d", musicnum);+ }
+ else
+ {+ music = &S_music[musicnum];
+ }
+
+ if (mus_playing == music)
+ {+ return;
+ }
+
+ // shutdown old music
+ S_StopMusic();
+
+ // get lumpnum if neccessary
+ if (!music->lumpnum)
+ {+ sprintf(namebuf, "d_%s", DEH_String(music->name));
+ music->lumpnum = W_GetNumForName(namebuf);
+ }
+
+ music->data = W_CacheLumpNum(music->lumpnum, PU_STATIC);
+
+ handle = I_RegisterSong(music->data, W_LumpLength(music->lumpnum));
+ music->handle = handle;
+ I_PlaySong(handle, looping);
+
+ mus_playing = music;
+}
+
+boolean S_MusicPlaying(void)
+{+ return I_MusicIsPlaying();
+}
+
+void S_StopMusic(void)
+{+ if (mus_playing)
+ {+ if (mus_paused)
+ {+ I_ResumeSong();
+ }
+
+ I_StopSong();
+ I_UnRegisterSong(mus_playing->handle);
+ W_ReleaseLumpNum(mus_playing->lumpnum);
+ mus_playing->data = NULL;
+ mus_playing = NULL;
+ }
+}
+
--- /dev/null
+++ b/src/doom/s_sound.h
@@ -1,0 +1,96 @@
+// Emacs style mode select -*- C++ -*-
+//-----------------------------------------------------------------------------
+//
+// Copyright(C) 1993-1996 Id Software, Inc.
+// Copyright(C) 2005 Simon Howard
+//
+// 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.
+//
+// DESCRIPTION:
+// The not so system specific sound interface.
+//
+//-----------------------------------------------------------------------------
+
+
+#ifndef __S_SOUND__
+#define __S_SOUND__
+
+#include "p_mobj.h"
+#include "sounds.h"
+
+//
+// Initializes sound stuff, including volume
+// Sets channels, SFX and music volume,
+// allocates channel buffer, sets S_sfx lookup.
+//
+
+void S_Init(int sfxVolume, int musicVolume);
+
+
+// Shut down sound
+
+void S_Shutdown(void);
+
+
+
+//
+// Per level startup code.
+// Kills playing sounds at start of level,
+// determines music if any, changes music.
+//
+
+void S_Start(void);
+
+//
+// Start sound for thing at <origin>
+// using <sound_id> from sounds.h
+//
+
+void S_StartSound(void *origin, int sound_id);
+
+// Stop sound for thing at <origin>
+void S_StopSound(mobj_t *origin);
+
+
+// Start music using <music_id> from sounds.h
+void S_StartMusic(int music_id);
+
+// Start music using <music_id> from sounds.h,
+// and set whether looping
+void S_ChangeMusic(int music_id, int looping);
+
+// query if music is playing
+boolean S_MusicPlaying(void);
+
+// Stops the music fer sure.
+void S_StopMusic(void);
+
+// Stop and resume music, during game PAUSE.
+void S_PauseSound(void);
+void S_ResumeSound(void);
+
+
+//
+// Updates music & sounds
+//
+void S_UpdateSounds(mobj_t *listener);
+
+void S_SetMusicVolume(int volume);
+void S_SetSfxVolume(int volume);
+
+
+#endif
+
--- a/src/i_sdlmusic.c
+++ b/src/i_sdlmusic.c
@@ -35,8 +35,8 @@
#include "mus2mid.h"
#include "deh_str.h"
+#include "i_sound.h"
#include "m_misc.h"
-#include "s_sound.h"
#include "w_wad.h"
#include "z_zone.h"
--- a/src/i_sound.c
+++ b/src/i_sound.c
@@ -42,6 +42,10 @@
#define DEFAULT_MUSIC_DEVICE SNDDEVICE_NONE
#endif
+// Sound sample rate to use for digital output (Hz)
+
+int snd_samplerate = 44100;
+
// Low-level sound and music modules we are using
static sound_module_t *sound_module;
--- a/src/s_sound.c
+++ /dev/null
@@ -1,675 +1,0 @@
-// Emacs style mode select -*- C++ -*-
-//-----------------------------------------------------------------------------
-//
-// Copyright(C) 1993-1996 Id Software, Inc.
-// Copyright(C) 2005 Simon Howard
-//
-// 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.
-//
-// DESCRIPTION: none
-//
-//-----------------------------------------------------------------------------
-
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "i_sound.h"
-#include "i_system.h"
-
-#include "doomfeatures.h"
-#include "deh_str.h"
-
-#include "doomstat.h"
-#include "doomtype.h"
-
-#include "sounds.h"
-#include "s_sound.h"
-
-#include "m_random.h"
-#include "m_argv.h"
-
-#include "p_local.h"
-#include "w_wad.h"
-#include "z_zone.h"
-
-// when to clip out sounds
-// Does not fit the large outdoor areas.
-
-#define S_CLIPPING_DIST (1200 * FRACUNIT)
-
-// Distance tp origin when sounds should be maxed out.
-// This should relate to movement clipping resolution
-// (see BLOCKMAP handling).
-// In the source code release: (160*FRACUNIT). Changed back to the
-// Vanilla value of 200 (why was this changed?)
-
-#define S_CLOSE_DIST (200 * FRACUNIT)
-
-// The range over which sound attenuates
-
-#define S_ATTENUATOR ((S_CLIPPING_DIST - S_CLOSE_DIST) >> FRACBITS)
-
-// Stereo separation
-
-#define S_STEREO_SWING (96 * FRACUNIT)
-
-#define NORM_PITCH 128
-#define NORM_PRIORITY 64
-#define NORM_SEP 128
-
-typedef struct
-{- // sound information (if null, channel avail.)
- sfxinfo_t *sfxinfo;
-
- // origin of sound
- mobj_t *origin;
-
- // handle of the sound being played
- int handle;
-
-} channel_t;
-
-// The set of channels available
-
-static channel_t *channels;
-
-// Maximum volume of a sound effect.
-// Internal default is max out of 0-15.
-
-int sfxVolume = 8;
-
-// Maximum volume of music.
-
-int musicVolume = 8;
-
-// Sound sample rate to use for digital output (Hz)
-
-int snd_samplerate = 44100;
-
-// Internal volume level, ranging from 0-127
-
-static int snd_SfxVolume;
-
-// Whether songs are mus_paused
-
-static boolean mus_paused;
-
-// Music currently being played
-
-static musicinfo_t *mus_playing = NULL;
-
-// Number of channels to use
-
-int numChannels = 8;
-
-//
-// Initializes sound stuff, including volume
-// Sets channels, SFX and music volume,
-// allocates channel buffer, sets S_sfx lookup.
-//
-
-void S_Init(int sfxVolume, int musicVolume)
-{ - int i;
-
- I_InitSound();
- I_InitMusic();
-
- S_SetSfxVolume(sfxVolume);
- S_SetMusicVolume(musicVolume);
-
- // Allocating the internal channels for mixing
- // (the maximum numer of sounds rendered
- // simultaneously) within zone memory.
- channels = Z_Malloc(numChannels*sizeof(channel_t), PU_STATIC, 0);
-
- // Free all channels for use
- for (i=0 ; i<numChannels ; i++)
- {- channels[i].sfxinfo = 0;
- }
-
- // no sounds are playing, and they are not mus_paused
- mus_paused = 0;
-
- // Note that sounds have not been cached (yet).
- for (i=1 ; i<NUMSFX ; i++)
- {- S_sfx[i].lumpnum = S_sfx[i].usefulness = -1;
- }
-}
-
-void S_Shutdown(void)
-{- I_ShutdownSound();
- I_ShutdownMusic();
-}
-
-static void S_StopChannel(int cnum)
-{- int i;
- channel_t *c;
-
- c = &channels[cnum];
-
- if (c->sfxinfo)
- {- // stop the sound playing
-
- if (I_SoundIsPlaying(c->handle))
- {- I_StopSound(c->handle);
- }
-
- // check to see if other channels are playing the sound
-
- for (i=0; i<numChannels; i++)
- {- if (cnum != i && c->sfxinfo == channels[i].sfxinfo)
- {- break;
- }
- }
-
- // degrade usefulness of sound data
-
- c->sfxinfo->usefulness--;
- c->sfxinfo = NULL;
- }
-}
-
-//
-// Per level startup code.
-// Kills playing sounds at start of level,
-// determines music if any, changes music.
-//
-
-void S_Start(void)
-{- int cnum;
- int mnum;
-
- // kill all playing sounds at start of level
- // (trust me - a good idea)
- for (cnum=0 ; cnum<numChannels ; cnum++)
- {- if (channels[cnum].sfxinfo)
- {- S_StopChannel(cnum);
- }
- }
-
- // start new music for the level
- mus_paused = 0;
-
- if (gamemode == commercial)
- {- mnum = mus_runnin + gamemap - 1;
- }
- else
- {- int spmus[]=
- {- // Song - Who? - Where?
-
- mus_e3m4, // American e4m1
- mus_e3m2, // Romero e4m2
- mus_e3m3, // Shawn e4m3
- mus_e1m5, // American e4m4
- mus_e2m7, // Tim e4m5
- mus_e2m4, // Romero e4m6
- mus_e2m6, // J.Anderson e4m7 CHIRON.WAD
- mus_e2m5, // Shawn e4m8
- mus_e1m9, // Tim e4m9
- };
-
- if (gameepisode < 4)
- {- mnum = mus_e1m1 + (gameepisode-1)*9 + gamemap-1;
- }
- else
- {- mnum = spmus[gamemap-1];
- }
- }
-
- S_ChangeMusic(mnum, true);
-}
-
-void S_StopSound(mobj_t *origin)
-{- int cnum;
-
- for (cnum=0 ; cnum<numChannels ; cnum++)
- {- if (channels[cnum].sfxinfo && channels[cnum].origin == origin)
- {- S_StopChannel(cnum);
- break;
- }
- }
-}
-
-//
-// S_GetChannel :
-// If none available, return -1. Otherwise channel #.
-//
-
-static int S_GetChannel(mobj_t *origin, sfxinfo_t *sfxinfo)
-{- // channel number to use
- int cnum;
-
- channel_t* c;
-
- // Find an open channel
- for (cnum=0 ; cnum<numChannels ; cnum++)
- {- if (!channels[cnum].sfxinfo)
- {- break;
- }
- else if (origin && channels[cnum].origin == origin)
- {- S_StopChannel(cnum);
- break;
- }
- }
-
- // None available
- if (cnum == numChannels)
- {- // Look for lower priority
- for (cnum=0 ; cnum<numChannels ; cnum++)
- {- if (channels[cnum].sfxinfo->priority >= sfxinfo->priority)
- {- break;
- }
- }
-
- if (cnum == numChannels)
- {- // FUCK! No lower priority. Sorry, Charlie.
- return -1;
- }
- else
- {- // Otherwise, kick out lower priority.
- S_StopChannel(cnum);
- }
- }
-
- c = &channels[cnum];
-
- // channel is decided to be cnum.
- c->sfxinfo = sfxinfo;
- c->origin = origin;
-
- return cnum;
-}
-
-//
-// Changes volume and stereo-separation variables
-// from the norm of a sound effect to be played.
-// If the sound is not audible, returns a 0.
-// Otherwise, modifies parameters and returns 1.
-//
-
-static int S_AdjustSoundParams(mobj_t *listener, mobj_t *source,
- int *vol, int *sep)
-{- fixed_t approx_dist;
- fixed_t adx;
- fixed_t ady;
- angle_t angle;
-
- // calculate the distance to sound origin
- // and clip it if necessary
- adx = abs(listener->x - source->x);
- ady = abs(listener->y - source->y);
-
- // From _GG1_ p.428. Appox. eucledian distance fast.
- approx_dist = adx + ady - ((adx < ady ? adx : ady)>>1);
-
- if (gamemap != 8 && approx_dist > S_CLIPPING_DIST)
- {- return 0;
- }
-
- // angle of source to listener
- angle = R_PointToAngle2(listener->x,
- listener->y,
- source->x,
- source->y);
-
- if (angle > listener->angle)
- {- angle = angle - listener->angle;
- }
- else
- {- angle = angle + (0xffffffff - listener->angle);
- }
-
- angle >>= ANGLETOFINESHIFT;
-
- // stereo separation
- *sep = 128 - (FixedMul(S_STEREO_SWING, finesine[angle]) >> FRACBITS);
-
- // volume calculation
- if (approx_dist < S_CLOSE_DIST)
- {- *vol = snd_SfxVolume;
- }
- else if (gamemap == 8)
- {- if (approx_dist > S_CLIPPING_DIST)
- {- approx_dist = S_CLIPPING_DIST;
- }
-
- *vol = 15+ ((snd_SfxVolume-15)
- *((S_CLIPPING_DIST - approx_dist)>>FRACBITS))
- / S_ATTENUATOR;
- }
- else
- {- // distance effect
- *vol = (snd_SfxVolume
- * ((S_CLIPPING_DIST - approx_dist)>>FRACBITS))
- / S_ATTENUATOR;
- }
-
- return (*vol > 0);
-}
-
-void S_StartSound(void *origin_p, int sfx_id)
-{- sfxinfo_t *sfx;
- mobj_t *origin;
- int rc;
- int sep;
- int priority;
- int cnum;
- int volume;
-
- origin = (mobj_t *) origin_p;
- volume = snd_SfxVolume;
-
- // check for bogus sound #
- if (sfx_id < 1 || sfx_id > NUMSFX)
- {- I_Error("Bad sfx #: %d", sfx_id);- }
-
- sfx = &S_sfx[sfx_id];
-
- // Initialize sound parameters
- if (sfx->link)
- {- priority = sfx->priority;
- volume += sfx->volume;
-
- if (volume < 1)
- {- return;
- }
-
- if (volume > snd_SfxVolume)
- {- volume = snd_SfxVolume;
- }
- }
- else
- {- priority = NORM_PRIORITY;
- }
-
-
- // Check to see if it is audible,
- // and if not, modify the params
- if (origin && origin != players[consoleplayer].mo)
- {- rc = S_AdjustSoundParams(players[consoleplayer].mo,
- origin,
- &volume,
- &sep);
-
- if (origin->x == players[consoleplayer].mo->x
- && origin->y == players[consoleplayer].mo->y)
- { - sep = NORM_SEP;
- }
-
- if (!rc)
- {- return;
- }
- }
- else
- {- sep = NORM_SEP;
- }
-
- // kill old sound
- S_StopSound(origin);
-
- // try to find a channel
- cnum = S_GetChannel(origin, sfx);
-
- if (cnum < 0)
- {- return;
- }
-
- // increase the usefulness
- if (sfx->usefulness++ < 0)
- {- sfx->usefulness = 1;
- }
-
- if (sfx->lumpnum < 0)
- {- sfx->lumpnum = I_GetSfxLumpNum(sfx);
- }
-
- channels[cnum].handle = I_StartSound(sfx, cnum, volume, sep);
-}
-
-//
-// Stop and resume music, during game PAUSE.
-//
-
-void S_PauseSound(void)
-{- if (mus_playing && !mus_paused)
- {- I_PauseSong();
- mus_paused = true;
- }
-}
-
-void S_ResumeSound(void)
-{- if (mus_playing && mus_paused)
- {- I_ResumeSong();
- mus_paused = false;
- }
-}
-
-//
-// Updates music & sounds
-//
-
-void S_UpdateSounds(mobj_t *listener)
-{- int audible;
- int cnum;
- int volume;
- int sep;
- sfxinfo_t* sfx;
- channel_t* c;
-
- for (cnum=0; cnum<numChannels; cnum++)
- {- c = &channels[cnum];
- sfx = c->sfxinfo;
-
- if (c->sfxinfo)
- {- if (I_SoundIsPlaying(c->handle))
- {- // initialize parameters
- volume = snd_SfxVolume;
- sep = NORM_SEP;
-
- if (sfx->link)
- {- volume += sfx->volume;
- if (volume < 1)
- {- S_StopChannel(cnum);
- continue;
- }
- else if (volume > snd_SfxVolume)
- {- volume = snd_SfxVolume;
- }
- }
-
- // check non-local sounds for distance clipping
- // or modify their params
- if (c->origin && listener != c->origin)
- {- audible = S_AdjustSoundParams(listener,
- c->origin,
- &volume,
- &sep);
-
- if (!audible)
- {- S_StopChannel(cnum);
- }
- else
- {- I_UpdateSoundParams(c->handle, volume, sep);
- }
- }
- }
- else
- {- // if channel is allocated but sound has stopped,
- // free it
- S_StopChannel(cnum);
- }
- }
- }
-}
-
-void S_SetMusicVolume(int volume)
-{- if (volume < 0 || volume > 127)
- {- I_Error("Attempt to set music volume at %d",- volume);
- }
-
- I_SetMusicVolume(volume);
-}
-
-void S_SetSfxVolume(int volume)
-{- if (volume < 0 || volume > 127)
- {- I_Error("Attempt to set sfx volume at %d", volume);- }
-
- snd_SfxVolume = volume;
-}
-
-//
-// Starts some music with the music id found in sounds.h.
-//
-
-void S_StartMusic(int m_id)
-{- S_ChangeMusic(m_id, false);
-}
-
-void S_ChangeMusic(int musicnum, int looping)
-{- musicinfo_t *music = NULL;
- char namebuf[9];
- void *handle;
-
- if (musicnum <= mus_None || musicnum >= NUMMUSIC)
- {- I_Error("Bad music number %d", musicnum);- }
- else
- {- music = &S_music[musicnum];
- }
-
- if (mus_playing == music)
- {- return;
- }
-
- // shutdown old music
- S_StopMusic();
-
- // get lumpnum if neccessary
- if (!music->lumpnum)
- {- sprintf(namebuf, "d_%s", DEH_String(music->name));
- music->lumpnum = W_GetNumForName(namebuf);
- }
-
- music->data = W_CacheLumpNum(music->lumpnum, PU_STATIC);
-
- handle = I_RegisterSong(music->data, W_LumpLength(music->lumpnum));
- music->handle = handle;
- I_PlaySong(handle, looping);
-
- mus_playing = music;
-}
-
-boolean S_MusicPlaying(void)
-{- return I_MusicIsPlaying();
-}
-
-void S_StopMusic(void)
-{- if (mus_playing)
- {- if (mus_paused)
- {- I_ResumeSong();
- }
-
- I_StopSong();
- I_UnRegisterSong(mus_playing->handle);
- W_ReleaseLumpNum(mus_playing->lumpnum);
- mus_playing->data = NULL;
- mus_playing = NULL;
- }
-}
-
--- a/src/s_sound.h
+++ /dev/null
@@ -1,96 +1,0 @@
-// Emacs style mode select -*- C++ -*-
-//-----------------------------------------------------------------------------
-//
-// Copyright(C) 1993-1996 Id Software, Inc.
-// Copyright(C) 2005 Simon Howard
-//
-// 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.
-//
-// DESCRIPTION:
-// The not so system specific sound interface.
-//
-//-----------------------------------------------------------------------------
-
-
-#ifndef __S_SOUND__
-#define __S_SOUND__
-
-#include "p_mobj.h"
-#include "sounds.h"
-
-//
-// Initializes sound stuff, including volume
-// Sets channels, SFX and music volume,
-// allocates channel buffer, sets S_sfx lookup.
-//
-
-void S_Init(int sfxVolume, int musicVolume);
-
-
-// Shut down sound
-
-void S_Shutdown(void);
-
-
-
-//
-// Per level startup code.
-// Kills playing sounds at start of level,
-// determines music if any, changes music.
-//
-
-void S_Start(void);
-
-//
-// Start sound for thing at <origin>
-// using <sound_id> from sounds.h
-//
-
-void S_StartSound(void *origin, int sound_id);
-
-// Stop sound for thing at <origin>
-void S_StopSound(mobj_t *origin);
-
-
-// Start music using <music_id> from sounds.h
-void S_StartMusic(int music_id);
-
-// Start music using <music_id> from sounds.h,
-// and set whether looping
-void S_ChangeMusic(int music_id, int looping);
-
-// query if music is playing
-boolean S_MusicPlaying(void);
-
-// Stops the music fer sure.
-void S_StopMusic(void);
-
-// Stop and resume music, during game PAUSE.
-void S_PauseSound(void);
-void S_ResumeSound(void);
-
-
-//
-// Updates music & sounds
-//
-void S_UpdateSounds(mobj_t *listener);
-
-void S_SetMusicVolume(int volume);
-void S_SetSfxVolume(int volume);
-
-
-#endif
-