mirror of
https://github.com/Shpoike/Quakespasm.git
synced 2024-11-10 07:21:58 +00:00
snd_dma.c: added SNDDMA_LockBuffer() as a new API, needed for, well, proper buffer
locking. removed simsound. removed unused S_AmbientOff() and S_AmbientOn(). other multiple cleanups and fixes. snd_sdl.c: replaced the old broken implementation which used to cause LRU failures with the one adapted from the uhexen2 project. sound.h: added missing prototypes, including the new SNDDMA_LockBuffer(). git-svn-id: http://svn.code.sf.net/p/quakespasm/code/trunk/quakespasm@6 af15c1b1-3010-417e-b628-4374ebc0bcbd
This commit is contained in:
sezero
parent
e40351322e
commit
4ca694aad1
3 changed files with 281 additions and 215 deletions
240
Quake/snd_dma.c
240
Quake/snd_dma.c
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@ -35,15 +35,13 @@ void S_StopAllSoundsC(void);
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// =======================================================================
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channel_t channels[MAX_CHANNELS];
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int total_channels;
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int total_channels;
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int snd_blocked = 0;
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static qboolean snd_ambient = 1;
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qboolean snd_initialized = false;
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int snd_blocked = 0;
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qboolean snd_initialized = false;
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// pointer should go away
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volatile dma_t *shm = 0;
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volatile dma_t sn;
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volatile dma_t *shm = NULL;
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volatile dma_t sn;
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vec3_t listener_origin;
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vec3_t listener_forward;
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@ -51,17 +49,17 @@ vec3_t listener_right;
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vec3_t listener_up;
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vec_t sound_nominal_clip_dist=1000.0;
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int soundtime; // sample PAIRS
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int paintedtime; // sample PAIRS
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int soundtime; // sample PAIRS
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int paintedtime; // sample PAIRS
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#define MAX_SFX 512
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sfx_t *known_sfx; // hunk allocated [MAX_SFX]
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int num_sfx;
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int num_sfx;
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sfx_t *ambient_sfx[NUM_AMBIENTS];
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int sound_started=0;
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qboolean sound_started = false;
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cvar_t bgmvolume = {"bgmvolume", "1", true};
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cvar_t volume = {"volume", "0.7", true};
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@ -78,33 +76,6 @@ cvar_t _snd_mixahead = {"_snd_mixahead", "0.1", true};
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cvar_t sndspeed = {"sndspeed", "11025"};
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// ====================================================================
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// User-setable variables
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// ====================================================================
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//
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// Fake dma is a synchronous faking of the DMA progress used for
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// isolating performance in the renderer. The fakedma_updates is
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// number of times S_Update() is called per second.
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//
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qboolean fakedma = false;
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int fakedma_updates = 15;
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void S_AmbientOff (void)
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{
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snd_ambient = false;
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}
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void S_AmbientOn (void)
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{
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snd_ambient = true;
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}
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void S_SoundInfo_f(void)
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{
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if (!sound_started || !shm)
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@ -113,14 +84,13 @@ void S_SoundInfo_f(void)
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return;
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}
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Con_Printf("%5d stereo\n", shm->channels - 1);
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Con_Printf("%5d samples\n", shm->samples);
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Con_Printf("%5d samplepos\n", shm->samplepos);
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Con_Printf("%5d samplebits\n", shm->samplebits);
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Con_Printf("%5d submission_chunk\n", shm->submission_chunk);
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Con_Printf("%5d speed\n", shm->speed);
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Con_Printf("0x%x dma buffer\n", shm->buffer);
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Con_Printf("%d bit, %s, %d Hz\n", shm->samplebits,
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(shm->channels == 2) ? "stereo" : "mono", shm->speed);
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Con_Printf("%5d samples\n", shm->samples);
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Con_Printf("%5d samplepos\n", shm->samplepos);
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Con_Printf("%5d submission_chunk\n", shm->submission_chunk);
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Con_Printf("%5d total_channels\n", total_channels);
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Con_Printf("%p dma buffer\n", shm->buffer);
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}
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@ -137,21 +107,19 @@ void S_Startup (void)
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if (!snd_initialized)
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return;
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if (!fakedma)
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sound_started = SNDDMA_Init();
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if (!sound_started)
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{
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rc = SNDDMA_Init();
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if (!rc)
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{
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#ifndef _WIN32
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Con_Printf("S_Startup: SNDDMA_Init failed.\n");
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#endif
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sound_started = 0;
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return;
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}
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Con_Printf("Failed initializing sound\n");
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}
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else
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{
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Con_Printf("Audio: %d bit, %s, %d Hz\n",
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shm->samplebits,
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(shm->channels == 2) ? "stereo" : "mono",
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shm->speed);
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}
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sound_started = 1;
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}
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@ -162,23 +130,11 @@ S_Init
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*/
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void S_Init (void)
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{
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if (COM_CheckParm("-nosound"))
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if (snd_initialized)
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{
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Con_Printf("Sound is already initialized\n");
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return;
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//johnfitz -- clean up init readouts
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Con_Printf("Sound Initialization\n");
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//Con_Printf("------------- Init Sound -------------\n");
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//Con_Printf("%cSound Init\n", 2);
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//johnfitz
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if (COM_CheckParm("-simsound"))
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fakedma = true;
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Cmd_AddCommand("play", S_Play);
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Cmd_AddCommand("playvol", S_PlayVol);
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Cmd_AddCommand("stopsound", S_StopAllSoundsC);
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Cmd_AddCommand("soundlist", S_SoundList);
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Cmd_AddCommand("soundinfo", S_SoundInfo_f);
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}
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Cvar_RegisterVariable(&nosound, NULL);
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Cvar_RegisterVariable(&volume, NULL);
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@ -191,7 +147,18 @@ void S_Init (void)
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Cvar_RegisterVariable(&snd_noextraupdate, NULL);
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Cvar_RegisterVariable(&snd_show, NULL);
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Cvar_RegisterVariable(&_snd_mixahead, NULL);
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Cvar_RegisterVariable(&sndspeed, NULL);
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Cvar_RegisterVariable(&sndspeed, NULL);
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if (COM_CheckParm("-nosound"))
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return;
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Con_Printf("Sound Initialization\n");
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Cmd_AddCommand("play", S_Play);
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Cmd_AddCommand("playvol", S_PlayVol);
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Cmd_AddCommand("stopsound", S_StopAllSoundsC);
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Cmd_AddCommand("soundlist", S_SoundList);
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Cmd_AddCommand("soundinfo", S_SoundInfo_f);
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if (COM_CheckParm("-sndspeed"))
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{
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@ -204,38 +171,18 @@ void S_Init (void)
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Con_Printf ("loading all sounds as 8bit\n");
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}
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snd_initialized = true;
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S_Startup ();
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SND_InitScaletable ();
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known_sfx = Hunk_AllocName (MAX_SFX*sizeof(sfx_t), "sfx_t");
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num_sfx = 0;
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// create a piece of DMA memory
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snd_initialized = true;
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if (fakedma)
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{
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shm = (void *) Hunk_AllocName(sizeof(*shm), "shm");
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shm->splitbuffer = 0;
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shm->samplebits = 16;
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shm->speed = 22050;
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shm->channels = 2;
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shm->samples = 32768;
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shm->samplepos = 0;
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shm->soundalive = true;
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shm->gamealive = true;
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shm->submission_chunk = 1;
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shm->buffer = Hunk_AllocName(1<<16, "shmbuf");
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}
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Con_Printf ("Sound sampling rate: %i\n", shm->speed);
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S_Startup ();
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if (sound_started == 0)
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return;
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// provides a tick sound until washed clean
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// if (shm->buffer)
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// shm->buffer[4] = shm->buffer[5] = 0x7f; // force a pop for debugging
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@ -252,20 +199,16 @@ void S_Init (void)
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void S_Shutdown(void)
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{
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if (!sound_started)
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return;
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if (shm)
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shm->gamealive = 0;
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shm = 0;
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sound_started = 0;
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snd_blocked = 0;
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if (!fakedma)
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{
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SNDDMA_Shutdown();
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}
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SNDDMA_Shutdown();
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shm = NULL;
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}
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@ -285,17 +228,19 @@ sfx_t *S_FindName (char *name)
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sfx_t *sfx;
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if (!name)
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Sys_Error ("S_FindName: NULL\n");
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Sys_Error ("S_FindName: NULL");
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if (Q_strlen(name) >= MAX_QPATH)
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Sys_Error ("Sound name too long: %s", name);
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// see if already loaded
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for (i=0 ; i < num_sfx ; i++)
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{
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if (!Q_strcmp(known_sfx[i].name, name))
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{
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return &known_sfx[i];
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}
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}
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if (num_sfx == MAX_SFX)
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Sys_Error ("S_FindName: out of sfx_t");
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@ -406,12 +351,8 @@ void SND_Spatialize(channel_t *ch)
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vec_t dist;
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vec_t lscale, rscale, scale;
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vec3_t source_vec;
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sfx_t *snd;
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/* unused -- kristian
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vec_t ldist, rdist;
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*/
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// anything coming from the view entity will allways be full volume
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// anything coming from the view entity will always be full volume
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if (ch->entnum == cl.viewentity)
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{
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ch->leftvol = ch->master_vol;
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@ -420,12 +361,8 @@ void SND_Spatialize(channel_t *ch)
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}
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// calculate stereo seperation and distance attenuation
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snd = ch->sfx;
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VectorSubtract(ch->origin, listener_origin, source_vec);
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dist = VectorNormalize(source_vec) * ch->dist_mult;
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dot = DotProduct(listener_right, source_vec);
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if (shm->channels == 1)
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@ -460,7 +397,6 @@ void S_StartSound(int entnum, int entchannel, sfx_t *sfx, vec3_t origin, float f
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{
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channel_t *target_chan, *check;
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sfxcache_t *sc;
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int vol;
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int ch_idx;
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int skip;
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@ -473,8 +409,6 @@ void S_StartSound(int entnum, int entchannel, sfx_t *sfx, vec3_t origin, float f
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if (nosound.value)
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return;
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vol = fvol*255;
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// pick a channel to play on
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target_chan = SND_PickChannel(entnum, entchannel);
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if (!target_chan)
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@ -484,7 +418,7 @@ void S_StartSound(int entnum, int entchannel, sfx_t *sfx, vec3_t origin, float f
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memset (target_chan, 0, sizeof(*target_chan));
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VectorCopy(origin, target_chan->origin);
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target_chan->dist_mult = attenuation / sound_nominal_clip_dist;
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target_chan->master_vol = vol;
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target_chan->master_vol = (int) (fvol * 255);
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target_chan->entnum = entnum;
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target_chan->entchannel = entchannel;
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SND_Spatialize(target_chan);
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@ -520,7 +454,6 @@ void S_StartSound(int entnum, int entchannel, sfx_t *sfx, vec3_t origin, float f
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target_chan->end -= skip;
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break;
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}
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}
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}
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@ -550,10 +483,12 @@ void S_StopAllSounds(qboolean clear)
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total_channels = MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS; // no statics
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for (i=0 ; i<MAX_CHANNELS ; i++)
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{
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if (channels[i].sfx)
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channels[i].sfx = NULL;
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}
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Q_memset(channels, 0, MAX_CHANNELS * sizeof(channel_t));
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memset(channels, 0, MAX_CHANNELS * sizeof(channel_t));
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if (clear)
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S_ClearBuffer ();
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@ -568,7 +503,11 @@ void S_ClearBuffer (void)
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{
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int clear;
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if (!sound_started || !shm || !shm->buffer)
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if (!sound_started || !shm)
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return;
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SNDDMA_LockBuffer ();
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if (! shm->buffer)
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return;
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if (shm->samplebits == 8)
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@ -576,7 +515,9 @@ void S_ClearBuffer (void)
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else
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clear = 0;
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Q_memset(shm->buffer, clear, shm->samples * shm->samplebits/8);
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memset(shm->buffer, clear, shm->samples * shm->samplebits / 8);
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SNDDMA_Submit ();
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}
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@ -636,9 +577,6 @@ void S_UpdateAmbientSounds (void)
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int ambient_channel;
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channel_t *chan;
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if (!snd_ambient)
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return;
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//johnfitz -- no ambients when disconnected
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if (cls.state != ca_connected)
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return;
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@ -737,8 +675,10 @@ void S_Update(vec3_t origin, vec3_t forward, vec3_t right, vec3_t up)
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// search for one
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combine = channels+MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS;
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for (j=MAX_DYNAMIC_CHANNELS + NUM_AMBIENTS ; j<i; j++, combine++)
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{
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if (combine->sfx == ch->sfx)
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break;
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}
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if (j == total_channels)
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{
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@ -755,8 +695,6 @@ void S_Update(vec3_t origin, vec3_t forward, vec3_t right, vec3_t up)
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continue;
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}
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}
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}
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//
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@ -767,11 +705,13 @@ void S_Update(vec3_t origin, vec3_t forward, vec3_t right, vec3_t up)
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total = 0;
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ch = channels;
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for (i=0 ; i<total_channels; i++, ch++)
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{
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if (ch->sfx && (ch->leftvol || ch->rightvol) )
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{
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//Con_Printf ("%3i %3i %s\n", ch->leftvol, ch->rightvol, ch->sfx->name);
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total++;
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}
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}
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Con_Printf ("----(%i)----\n", total);
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}
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@ -824,12 +764,17 @@ void S_ExtraUpdate (void)
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void S_Update_(void)
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{
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unsigned endtime;
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int samps;
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#if 1
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unsigned int endtime;
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int samps;
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if (!sound_started || (snd_blocked > 0))
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return;
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SNDDMA_LockBuffer ();
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if (! shm->buffer)
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return;
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// Updates DMA time
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GetSoundtime();
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@ -848,7 +793,32 @@ void S_Update_(void)
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S_PaintChannels (endtime);
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// SNDDMA_Submit ();
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SNDDMA_Submit ();
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#endif
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}
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void S_BlockSound (void)
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{
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/* FIXME: do we really need the blocking at the
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* driver level?
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*/
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if (sound_started && ++snd_blocked == 1)
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{
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S_ClearBuffer ();
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if (shm)
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SNDDMA_BlockSound();
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}
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}
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void S_UnblockSound (void)
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{
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if (!sound_started || !snd_blocked)
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return;
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if (--snd_blocked == 0)
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{
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SNDDMA_UnblockSound();
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S_ClearBuffer ();
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}
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}
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/*
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@ -932,7 +902,7 @@ void S_SoundList(void)
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}
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void S_LocalSound (char *sound)
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void S_LocalSound (char *name)
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{
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sfx_t *sfx;
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@ -941,10 +911,10 @@ void S_LocalSound (char *sound)
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if (!sound_started)
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return;
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sfx = S_PrecacheSound (sound);
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sfx = S_PrecacheSound (name);
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if (!sfx)
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{
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Con_Printf ("S_LocalSound: can't cache %s\n", sound);
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Con_Printf ("S_LocalSound: can't cache %s\n", name);
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return;
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}
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S_StartSound (cl.viewentity, -1, sfx, vec3_origin, 1, 1);
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|
|||
240
Quake/snd_sdl.c
240
Quake/snd_sdl.c
|
|
@ -1,125 +1,207 @@
|
|||
/*
|
||||
Copyright (C) 1996-2001 Id Software, Inc.
|
||||
Copyright (C) 2002-2005 John Fitzgibbons and others
|
||||
Copyright (C) 2007-2008 Kristian Duske
|
||||
snd_sdl2.c
|
||||
SDL audio driver for Hexen II: Hammer of Thyrion, based on the
|
||||
implementations found in the quakeforge and quake3-icculus.org
|
||||
projects.
|
||||
|
||||
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.
|
||||
$Id: snd_sdl2.c,v 1.8 2010/01/23 12:01:23 sezero Exp $
|
||||
|
||||
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.
|
||||
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.
|
||||
|
||||
See the GNU General Public License for more details.
|
||||
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.
|
||||
|
||||
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.
|
||||
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:
|
||||
|
||||
Free Software Foundation, Inc.
|
||||
51 Franklin St, Fifth Floor,
|
||||
Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
// stolen from http://www.libsdl.org/projects/quake/ -- apologies, I don't know the author's name
|
||||
|
||||
#include <stdio.h>
|
||||
#include "quakedef.h"
|
||||
#include "SDL.h"
|
||||
|
||||
static dma_t the_shm;
|
||||
static int snd_inited;
|
||||
static int buffersize;
|
||||
|
||||
#define BUF_SIZE 512
|
||||
|
||||
static void paint_audio(void *unused, Uint8 *stream, int len)
|
||||
static void paint_audio (void *unused, Uint8 *stream, int len)
|
||||
{
|
||||
if ( shm ) {
|
||||
shm->buffer = stream;
|
||||
shm->samplepos += len/(shm->samplebits/8)/2;
|
||||
// Check for samplepos overflow?
|
||||
S_PaintChannels (shm->samplepos);
|
||||
int pos, tobufend;
|
||||
int len1, len2;
|
||||
|
||||
if (!shm)
|
||||
{ /* shouldn't happen, but just in case */
|
||||
memset(stream, 0, len);
|
||||
return;
|
||||
}
|
||||
|
||||
pos = (shm->samplepos * (shm->samplebits / 8));
|
||||
if (pos >= buffersize)
|
||||
shm->samplepos = pos = 0;
|
||||
|
||||
tobufend = buffersize - pos; /* bytes to buffer's end. */
|
||||
len1 = len;
|
||||
len2 = 0;
|
||||
|
||||
if (len1 > tobufend)
|
||||
{
|
||||
len1 = tobufend;
|
||||
len2 = len - len1;
|
||||
}
|
||||
|
||||
memcpy(stream, shm->buffer + pos, len1);
|
||||
|
||||
if (len2 <= 0)
|
||||
{
|
||||
shm->samplepos += (len1 / (shm->samplebits / 8));
|
||||
}
|
||||
else
|
||||
{ /* wraparound? */
|
||||
memcpy(stream + len1, shm->buffer, len2);
|
||||
shm->samplepos = (len2 / (shm->samplebits / 8));
|
||||
}
|
||||
|
||||
if (shm->samplepos >= buffersize)
|
||||
shm->samplepos = 0;
|
||||
}
|
||||
|
||||
qboolean SNDDMA_Init(void)
|
||||
qboolean SNDDMA_Init (void)
|
||||
{
|
||||
SDL_AudioSpec desired, obtained;
|
||||
int tmp, val;
|
||||
char drivername[128];
|
||||
|
||||
snd_inited = 0;
|
||||
if (SDL_InitSubSystem(SDL_INIT_AUDIO) == -1)
|
||||
{
|
||||
Con_Printf("Couldn't init SDL audio: %s\n", SDL_GetError());
|
||||
return false;
|
||||
}
|
||||
|
||||
/* Set up the desired format */
|
||||
desired.freq = sndspeed.value;
|
||||
if (loadas8bit.value) {
|
||||
desired.format = AUDIO_U8;
|
||||
} else {
|
||||
if (SDL_BYTEORDER == SDL_BIG_ENDIAN)
|
||||
desired.format = AUDIO_S16MSB;
|
||||
else
|
||||
desired.format = AUDIO_S16LSB;
|
||||
}
|
||||
desired.channels = 2;
|
||||
desired.samples = BUF_SIZE;
|
||||
desired.freq = tmp = sndspeed.value;
|
||||
desired.format = (loadas8bit.value) ? AUDIO_U8 : AUDIO_S16SYS;
|
||||
desired.channels = 2; /* = desired_channels; */
|
||||
if (desired.freq <= 11025)
|
||||
desired.samples = 256;
|
||||
else if (desired.freq <= 22050)
|
||||
desired.samples = 512;
|
||||
else if (desired.freq <= 44100)
|
||||
desired.samples = 1024;
|
||||
else
|
||||
desired.samples = 2048; /* shrug */
|
||||
desired.callback = paint_audio;
|
||||
desired.userdata = NULL;
|
||||
|
||||
/* Open the audio device */
|
||||
if ( SDL_OpenAudio(&desired, &obtained) < 0 ) {
|
||||
Con_Printf("Couldn't open SDL audio: %s\n", SDL_GetError());
|
||||
return 0;
|
||||
if (SDL_OpenAudio(&desired, &obtained) == -1)
|
||||
{
|
||||
Con_Printf("Couldn't open SDL audio: %s\n", SDL_GetError());
|
||||
SDL_QuitSubSystem(SDL_INIT_AUDIO);
|
||||
return false;
|
||||
}
|
||||
|
||||
/* Make sure we can support the audio format */
|
||||
switch (obtained.format) {
|
||||
case AUDIO_U8:
|
||||
/* Supported */
|
||||
break;
|
||||
case AUDIO_S16LSB:
|
||||
case AUDIO_S16MSB:
|
||||
if ( ((obtained.format == AUDIO_S16LSB) &&
|
||||
(SDL_BYTEORDER == SDL_LIL_ENDIAN)) ||
|
||||
((obtained.format == AUDIO_S16MSB) &&
|
||||
(SDL_BYTEORDER == SDL_BIG_ENDIAN)) ) {
|
||||
/* Supported */
|
||||
break;
|
||||
}
|
||||
/* Unsupported, fall through */;
|
||||
default:
|
||||
/* Not supported -- force SDL to do our bidding */
|
||||
SDL_CloseAudio();
|
||||
if ( SDL_OpenAudio(&desired, NULL) < 0 ) {
|
||||
Con_Printf("Couldn't open SDL audio: %s\n",
|
||||
SDL_GetError());
|
||||
return 0;
|
||||
}
|
||||
memcpy(&obtained, &desired, sizeof(desired));
|
||||
break;
|
||||
switch (obtained.format)
|
||||
{
|
||||
case AUDIO_U8:
|
||||
case AUDIO_S16SYS:
|
||||
/* Supported */
|
||||
break;
|
||||
default:
|
||||
Con_Printf ("Unsupported audio format received (%u)\n", obtained.format);
|
||||
SDL_CloseAudio();
|
||||
SDL_QuitSubSystem(SDL_INIT_AUDIO);
|
||||
return false;
|
||||
}
|
||||
SDL_PauseAudio(0);
|
||||
|
||||
memset ((void *) &sn, 0, sizeof(dma_t));
|
||||
shm = &sn;
|
||||
|
||||
/* Fill the audio DMA information block */
|
||||
shm = &the_shm;
|
||||
shm->splitbuffer = 0;
|
||||
shm->samplebits = (obtained.format & 0xFF);
|
||||
shm->samplebits = (obtained.format & 0xFF); /* first byte of format is bits */
|
||||
if (obtained.freq != tmp)
|
||||
Con_Printf ("Warning: Rate set (%d) didn't match requested rate (%d)!\n", obtained.freq, tmp);
|
||||
shm->speed = obtained.freq;
|
||||
shm->channels = obtained.channels;
|
||||
shm->samples = obtained.samples*shm->channels;
|
||||
tmp = (obtained.samples * obtained.channels) * 10;
|
||||
if (tmp & (tmp - 1))
|
||||
{ /* make it a power of two */
|
||||
val = 1;
|
||||
while (val < tmp)
|
||||
val <<= 1;
|
||||
|
||||
tmp = val;
|
||||
}
|
||||
shm->samples = tmp;
|
||||
shm->samplepos = 0;
|
||||
shm->submission_chunk = 1;
|
||||
shm->buffer = NULL;
|
||||
|
||||
snd_inited = 1;
|
||||
return 1;
|
||||
Con_Printf ("SDL audio spec : %d Hz, %d samples, %d channels\n",
|
||||
obtained.freq, obtained.samples, obtained.channels);
|
||||
if (SDL_AudioDriverName(drivername, sizeof(drivername)) == NULL)
|
||||
strcpy(drivername, "(UNKNOWN)");
|
||||
buffersize = shm->samples * (shm->samplebits / 8);
|
||||
Con_Printf ("SDL audio driver: %s, %d bytes buffer\n", drivername, buffersize);
|
||||
|
||||
shm->buffer = (unsigned char *) calloc (1, buffersize);
|
||||
if (!shm->buffer)
|
||||
{
|
||||
SDL_CloseAudio();
|
||||
SDL_QuitSubSystem(SDL_INIT_AUDIO);
|
||||
shm = NULL;
|
||||
Con_Printf ("Failed allocating memory for SDL audio\n");
|
||||
return false;
|
||||
}
|
||||
|
||||
SDL_PauseAudio(0);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
int SNDDMA_GetDMAPos(void)
|
||||
int SNDDMA_GetDMAPos (void)
|
||||
{
|
||||
return shm->samplepos;
|
||||
}
|
||||
|
||||
void SNDDMA_Shutdown(void)
|
||||
void SNDDMA_Shutdown (void)
|
||||
{
|
||||
if (snd_inited)
|
||||
if (shm)
|
||||
{
|
||||
Con_Printf ("Shutting down SDL sound\n");
|
||||
SDL_PauseAudio(1);
|
||||
SDL_LockAudio ();
|
||||
SDL_CloseAudio();
|
||||
snd_inited = 0;
|
||||
if (shm->buffer)
|
||||
free (shm->buffer);
|
||||
SDL_QuitSubSystem(SDL_INIT_AUDIO);
|
||||
shm->buffer = NULL;
|
||||
shm = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
void SNDDMA_LockBuffer (void)
|
||||
{
|
||||
SDL_LockAudio ();
|
||||
}
|
||||
|
||||
void SNDDMA_Submit (void)
|
||||
{
|
||||
SDL_UnlockAudio();
|
||||
}
|
||||
|
||||
void SNDDMA_BlockSound (void)
|
||||
{
|
||||
SDL_PauseAudio(1);
|
||||
}
|
||||
|
||||
void SNDDMA_UnblockSound (void)
|
||||
{
|
||||
SDL_PauseAudio(0);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -102,6 +102,9 @@ void S_ClearBuffer (void);
|
|||
void S_Update (vec3_t origin, vec3_t v_forward, vec3_t v_right, vec3_t v_up);
|
||||
void S_ExtraUpdate (void);
|
||||
|
||||
void S_BlockSound (void);
|
||||
void S_UnblockSound (void);
|
||||
|
||||
sfx_t *S_PrecacheSound (char *sample);
|
||||
void S_TouchSound (char *sample);
|
||||
void S_ClearPrecache (void);
|
||||
|
|
@ -125,6 +128,18 @@ int SNDDMA_GetDMAPos(void);
|
|||
// shutdown the DMA xfer.
|
||||
void SNDDMA_Shutdown(void);
|
||||
|
||||
/* validates & locks the dma buffer */
|
||||
void SNDDMA_LockBuffer(void);
|
||||
|
||||
/* unlocks the dma buffer / sends sound to the device */
|
||||
void SNDDMA_Submit(void);
|
||||
|
||||
/* blocks sound output upon window focus loss */
|
||||
void SNDDMA_BlockSound(void);
|
||||
|
||||
/* unblocks the output upon window focus gain */
|
||||
void SNDDMA_UnblockSound(void);
|
||||
|
||||
// ====================================================================
|
||||
// User-setable variables
|
||||
// ====================================================================
|
||||
|
|
@ -172,7 +187,6 @@ sfxcache_t *S_LoadSound (sfx_t *s);
|
|||
wavinfo_t GetWavinfo (char *name, byte *wav, int wavlength);
|
||||
|
||||
void SND_InitScaletable (void);
|
||||
void SNDDMA_Submit(void);
|
||||
|
||||
void S_AmbientOff (void);
|
||||
void S_AmbientOn (void);
|
||||
|
|
|
|||
Loading…
Reference in a new issue