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Diffstat (limited to 'src/i_sound.c')
| -rw-r--r-- | src/i_sound.c | 436 |
1 files changed, 436 insertions, 0 deletions
diff --git a/src/i_sound.c b/src/i_sound.c new file mode 100644 index 00000000..0c771dc2 --- /dev/null +++ b/src/i_sound.c @@ -0,0 +1,436 @@ +// 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 "SDL_mixer.h" + +#include "config.h" +#include "doomfeatures.h" +#include "doomtype.h" + +#include "i_sound.h" +#include "i_video.h" +#include "m_argv.h" +#include "m_config.h" + +// 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; +static music_module_t *music_module; + +int snd_musicdevice = SNDDEVICE_GENMIDI; +int snd_sfxdevice = SNDDEVICE_SB; + +// Sound modules + +extern sound_module_t sound_sdl_module; +extern sound_module_t sound_pcsound_module; +extern music_module_t music_sdl_module; +extern music_module_t music_opl_module; + +// For OPL module: + +extern int opl_io_port; + +// DOS-specific options: These are unused but should be maintained +// so that the config file can be shared between chocolate +// doom and doom.exe + +static int snd_sbport = 0; +static int snd_sbirq = 0; +static int snd_sbdma = 0; +static int snd_mport = 0; + +// Compiled-in sound modules: + +static sound_module_t *sound_modules[] = +{ +#ifdef FEATURE_SOUND + &sound_sdl_module, + &sound_pcsound_module, +#endif + NULL, +}; + +// Compiled-in music modules: + +static music_module_t *music_modules[] = +{ +#ifdef FEATURE_SOUND + &music_sdl_module, + &music_opl_module, +#endif + NULL, +}; + +// Check if a sound device is in the given list of devices + +static boolean SndDeviceInList(snddevice_t device, snddevice_t *list, + int len) +{ + int i; + + for (i=0; i<len; ++i) + { + if (device == list[i]) + { + return true; + } + } + + return false; +} + +// Find and initialize a sound_module_t appropriate for the setting +// in snd_sfxdevice. + +static void InitSfxModule(boolean use_sfx_prefix) +{ + int i; + + sound_module = NULL; + + for (i=0; sound_modules[i] != NULL; ++i) + { + // Is the sfx device in the list of devices supported by + // this module? + + if (SndDeviceInList(snd_sfxdevice, + sound_modules[i]->sound_devices, + sound_modules[i]->num_sound_devices)) + { + // Initialize the module + + if (sound_modules[i]->Init(use_sfx_prefix)) + { + sound_module = sound_modules[i]; + return; + } + } + } +} + +// Initialize music according to snd_musicdevice. + +static void InitMusicModule(void) +{ + int i; + + music_module = NULL; + + for (i=0; music_modules[i] != NULL; ++i) + { + // Is the music device in the list of devices supported + // by this module? + + if (SndDeviceInList(snd_musicdevice, + music_modules[i]->sound_devices, + music_modules[i]->num_sound_devices)) + { + // Initialize the module + + if (music_modules[i]->Init()) + { + music_module = music_modules[i]; + return; + } + } + } +} + +// +// Initializes sound stuff, including volume +// Sets channels, SFX and music volume, +// allocates channel buffer, sets S_sfx lookup. +// + +void I_InitSound(boolean use_sfx_prefix) +{ + boolean nosound, nosfx, nomusic; + + //! + // @vanilla + // + // Disable all sound output. + // + + nosound = M_CheckParm("-nosound") > 0; + + //! + // @vanilla + // + // Disable sound effects. + // + + nosfx = M_CheckParm("-nosfx") > 0; + + //! + // @vanilla + // + // Disable music. + // + + nomusic = M_CheckParm("-nomusic") > 0; + + // Initialize the sound and music subsystems. + + if (!nosound && !screensaver_mode) + { + if (!nosfx) + { + InitSfxModule(use_sfx_prefix); + } + + if (!nomusic) + { + InitMusicModule(); + } + } +} + +void I_ShutdownSound(void) +{ + if (sound_module != NULL) + { + sound_module->Shutdown(); + } + + if (music_module != NULL) + { + music_module->Shutdown(); + } +} + +int I_GetSfxLumpNum(sfxinfo_t *sfxinfo) +{ + if (sound_module != NULL) + { + return sound_module->GetSfxLumpNum(sfxinfo); + } + else + { + return 0; + } +} + +void I_UpdateSound(void) +{ + if (sound_module != NULL) + { + sound_module->Update(); + } +} + +static void CheckVolumeSeparation(int *sep, int *vol) +{ + if (*sep < 0) + { + *sep = 0; + } + else if (*sep > 254) + { + *sep = 254; + } + + if (*vol < 0) + { + *vol = 0; + } + else if (*vol > 127) + { + *vol = 127; + } +} + +void I_UpdateSoundParams(int channel, int vol, int sep) +{ + if (sound_module != NULL) + { + CheckVolumeSeparation(&vol, &sep); + sound_module->UpdateSoundParams(channel, vol, sep); + } +} + +int I_StartSound(sfxinfo_t *sfxinfo, int channel, int vol, int sep) +{ + if (sound_module != NULL) + { + CheckVolumeSeparation(&vol, &sep); + return sound_module->StartSound(sfxinfo, channel, vol, sep); + } + else + { + return 0; + } +} + +void I_StopSound(int channel) +{ + if (sound_module != NULL) + { + sound_module->StopSound(channel); + } +} + +boolean I_SoundIsPlaying(int channel) +{ + if (sound_module != NULL) + { + return sound_module->SoundIsPlaying(channel); + } + else + { + return false; + } +} + +void I_PrecacheSounds(sfxinfo_t *sounds, int num_sounds) +{ + if (sound_module != NULL && sound_module->CacheSounds != NULL) + { + sound_module->CacheSounds(sounds, num_sounds); + } +} + +void I_InitMusic(void) +{ +} + +void I_ShutdownMusic(void) +{ + +} + +void I_SetMusicVolume(int volume) +{ + if (music_module != NULL) + { + music_module->SetMusicVolume(volume); + } +} + +void I_PauseSong(void) +{ + if (music_module != NULL) + { + music_module->PauseMusic(); + } +} + +void I_ResumeSong(void) +{ + if (music_module != NULL) + { + music_module->ResumeMusic(); + } +} + +void *I_RegisterSong(void *data, int len) +{ + if (music_module != NULL) + { + return music_module->RegisterSong(data, len); + } + else + { + return NULL; + } +} + +void I_UnRegisterSong(void *handle) +{ + if (music_module != NULL) + { + music_module->UnRegisterSong(handle); + } +} + +void I_PlaySong(void *handle, boolean looping) +{ + if (music_module != NULL) + { + music_module->PlaySong(handle, looping); + } +} + +void I_StopSong(void) +{ + if (music_module != NULL) + { + music_module->StopSong(); + } +} + +boolean I_MusicIsPlaying(void) +{ + if (music_module != NULL) + { + return music_module->MusicIsPlaying(); + } + else + { + return false; + } +} + +void I_BindSoundVariables(void) +{ + extern int use_libsamplerate; + + M_BindVariable("snd_musicdevice", &snd_musicdevice); + M_BindVariable("snd_sfxdevice", &snd_sfxdevice); + M_BindVariable("snd_sbport", &snd_sbport); + M_BindVariable("snd_sbirq", &snd_sbirq); + M_BindVariable("snd_sbdma", &snd_sbdma); + M_BindVariable("snd_mport", &snd_mport); + M_BindVariable("snd_samplerate", &snd_samplerate); + M_BindVariable("opl_io_port", &opl_io_port); +#ifdef FEATURE_SOUND + M_BindVariable("use_libsamplerate", &use_libsamplerate); +#endif + + // Before SDL_mixer version 1.2.11, MIDI music caused the game + // to crash when it looped. If this is an old SDL_mixer version, + // disable MIDI. + +#ifdef __MACOSX__ + { + const SDL_version *v = Mix_Linked_Version(); + + if (SDL_VERSIONNUM(v->major, v->minor, v->patch) + < SDL_VERSIONNUM(1, 2, 11)) + { + snd_musicdevice = SNDDEVICE_NONE; + } + } +#endif +} + |