ref: e1f905cd3c481d561f2faf8c80e800cffe4d2035
dir: /src/hexen/i_header.h/
// // Copyright(C) 1993-1996 Id Software, Inc. // Copyright(C) 1993-2008 Raven Software // Copyright(C) 2005-2014 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. // #ifndef __I_HEADER_H__ #define __I_HEADER_H__ #include "h2def.h" //-------- //SOUND IO //-------- #define FREQ_LOW 0x40 #define FREQ_NORM 0x80 #define FREQ_HIGH 0xff void I_SetMasterVolume(int volume); void I_TurnOffSfx(void); void I_TurnOnSfx(void); void I_TurnOffMusic(void); void I_TurnOnMusic(void); // MUSIC I/O // int I_RegisterSong(void *songdata); // called by anything that wants to register a song lump with the sound lib // calls Paul's function of the similar name to register music only. // note that the song data is the same for any sound card and is paul's // MUS format. Returns a handle which will be passed to all other music // functions. void I_UnregisterSong(int handle); // called by anything which is finished with a song and no longer needs // the sound library to be aware of it. All songs should be stopped // before calling this, but it will double check and stop it if necessary. void I_LoopSong(int handle); // called by anything that wishes to start music. // plays a song, and when the song is done, starts playing it again in // an endless loop. the start is faded in over three seconds. void I_FadeOutSong(int handle, int fotime); // called by anything that wishes to stop music. // fades out the song over <fotime> milliseconds. void I_StopSong(int handle); // called by anything that wishes to stop music. // stops a song abruptly. // SFX I/O // void *I_GetSoundEffect(char *soundname); // called by routines which wish to play a sound effect at some later // time. Pass it the lump name of a sound effect WITHOUT the sfx // prefix. This means the maximum name length is 7 letters/digits. // The prefixes for different sound cards are 'S','M','A', and 'P'. // They refer to the card type. The routine will cache in the // appropriate sound effect when it is played. void I_UngetSoundEffect(void *soundset); // called by routines which wish to no longer use the sounds at all // frees up the associated structure. It stops any currently playing // sound effects. void I_StartSound(channel_t * c, int vol, int sep, int pitch, int priority); // Starts a sound in a particular sound channel void I_UpdateSoundParams(channel_t * c, int vol, int sep, int pitch); // Updates the volume, separation, and pitch of a sound channel void I_StopSound(channel_t * c); // Stops a sound channel int I_SoundIsPlaying(channel_t * c); // called by S_*()'s to see if a channel is still playing. Returns 0 // if no longer playing, 1 if playing. #endif