564 lines
15 KiB
C
Executable file
564 lines
15 KiB
C
Executable file
/*
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THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
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SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
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END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
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ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
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IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
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SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
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FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
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CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
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AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
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COPYRIGHT 1993-1998 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include <malloc.h>
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#include <string.h>
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#include <ctype.h>
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#include "fix.h"
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#include "object.h"
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#include "mono.h"
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#include "timer.h"
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#include "joy.h"
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#include "digi.h"
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#include "sounds.h"
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#include "args.h"
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#include "key.h"
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#include "newdemo.h"
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#include "game.h"
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#include "u_dpmi.h"
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#include "error.h"
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#include "wall.h"
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#include "cfile.h"
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#include "piggy.h"
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#include "text.h"
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#include "midiallg.h"
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#include "kconfig.h"
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#define _DIGI_MAX_VOLUME 128 // set lower to have difference with > F1_0 sounds
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#define MIN_VOLUME 10 // minimal volume to be played (in 0-F1_0(?) range)
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// patch files
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#define _MELODIC_PATCH "melodic.bnk"
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#define _DRUM_PATCH "drum.bnk"
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#define _DIGDRUM_PATCH "drum32.dig"
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static int Digi_initialized = 0;
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static int digi_atexit_called = 0; // Set to 1 if atexit(digi_close) was called
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int digi_driver_board = 0;
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int digi_driver_port = 0;
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int digi_driver_irq = 0;
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int digi_driver_dma = 0;
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//int digi_midi_type = 0; // Midi driver type
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//int digi_midi_port = 0; // Midi driver port
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static int digi_max_channels = 8;
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//static int digi_driver_rate = 11025; // rate to use driver at
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//static int digi_dma_buffersize = 4096; // size of the dma buffer to use (4k)
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int digi_timer_rate = 9943; // rate for the timer to go off to handle the driver system (120 Hz)
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static int digi_volume = _DIGI_MAX_VOLUME; // Max volume
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//static int midi_volume = 128/2; // Max volume
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//static int midi_system_initialized = 0;
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//static int digi_system_initialized = 0;
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static int timer_system_initialized = 0;
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static int digi_sound_locks[MAX_SOUNDS];
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//char digi_last_midi_song[16] = "";
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//char digi_last_melodic_bank[16] = "";
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//char digi_last_drum_bank[16] = "";
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char *digi_driver_path = NULL;
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extern int midi_volume;
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//static void * lpInstruments = NULL; // pointer to the instrument file
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//static int InstrumentSize = 0;
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//static void * lpDrums = NULL; // pointer to the drum file
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//static int DrumSize = 0;
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// handle for the initialized MIDI song
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//MIDI *SongHandle = NULL;
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// a channel (voice) id is an int in Allegro
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typedef int CHANNEL;
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#define VALID_CHANNEL(ch) (ch >= 0)
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#define INVALID_CHANNEL -1
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#define DIGI_SLOTS DIGI_VOICES
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// next_handle is a Descent internal number (hereafter reffered to as slot),
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// which indexes into SampleHandles, SoundNums and SoundVolumes.
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// only digi_max_channels entries are used.
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// SampleHandles points to sounddriver handles (voices)
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static int next_handle = 0;
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static CHANNEL SampleHandles[DIGI_SLOTS] = {
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INVALID_CHANNEL, INVALID_CHANNEL, INVALID_CHANNEL, INVALID_CHANNEL,
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INVALID_CHANNEL, INVALID_CHANNEL, INVALID_CHANNEL, INVALID_CHANNEL,
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INVALID_CHANNEL, INVALID_CHANNEL, INVALID_CHANNEL, INVALID_CHANNEL,
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INVALID_CHANNEL, INVALID_CHANNEL, INVALID_CHANNEL, INVALID_CHANNEL,
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INVALID_CHANNEL, INVALID_CHANNEL, INVALID_CHANNEL, INVALID_CHANNEL,
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INVALID_CHANNEL, INVALID_CHANNEL, INVALID_CHANNEL, INVALID_CHANNEL,
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INVALID_CHANNEL, INVALID_CHANNEL, INVALID_CHANNEL, INVALID_CHANNEL,
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INVALID_CHANNEL, INVALID_CHANNEL, INVALID_CHANNEL, INVALID_CHANNEL };
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static int SoundNums[DIGI_SLOTS] = { -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1 };
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static uint SoundVolumes[DIGI_SLOTS] = { -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1 };
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void digi_reset_digi_sounds();
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int verify_channel_not_used_by_soundobjects( int channel );
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void digi_close() {
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if (!Digi_initialized) return;
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remove_sound();
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Digi_initialized = 0;
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if ( timer_system_initialized ) {
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// Remove timer...
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timer_set_function( NULL );
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}
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timer_system_initialized = 0;
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}
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/* initialize sound system. 0=ok, 1=error */
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int digi_init() {
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int i;
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if (!timer_system_initialized)
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{
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allg_snd_init();
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timer_system_initialized = 1;
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}
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if (!Digi_initialized) {
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// amount of voices we need
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// 16 for normal sounds and 16 for SoundObjects (fan, boss)
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// for DIGMID we sacrify some sounds (32 is the max).
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// reserve_voices(allegro_using_digmid() ? 16 : 32, -1);
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if (install_sound(DIGI_AUTODETECT, MIDI_AUTODETECT, NULL))
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return 1;
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set_volume(255, -1);
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digi_driver_board = digi_card; // only for 0, !=0
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digi_midi_type = midi_card; // only for 0, !=0
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}
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Digi_initialized = 1;
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if (!digi_atexit_called) {
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atexit( digi_close );
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digi_atexit_called = 1;
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}
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digi_init_sounds();
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digi_set_midi_volume( midi_volume );
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for (i=0; i<MAX_SOUNDS; i++ )
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digi_sound_locks[i] = 0;
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digi_reset_digi_sounds();
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return 0;
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}
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// Toggles sound system on/off
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void digi_reset()
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{
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if ( Digi_initialized ) {
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digi_reset_digi_sounds();
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digi_close();
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mprintf( (0, "Sound system DISABLED.\n" ));
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} else {
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digi_init();
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mprintf( (0, "Sound system ENABLED.\n" ));
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}
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}
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int digi_total_locks = 0;
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ubyte * digi_lock_sound_data( int soundnum )
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{
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int i;
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if ( !Digi_initialized ) return NULL;
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if ( digi_driver_board <= 0 ) return NULL;
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if ( digi_sound_locks[soundnum] == 0 ) {
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digi_total_locks++;
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//mprintf(( 0, "Total sound locks = %d\n", digi_total_locks ));
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i = dpmi_lock_region( GameSounds[soundnum].data, GameSounds[soundnum].len );
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if ( !i ) Error( "Error locking sound %d\n", soundnum );
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}
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digi_sound_locks[soundnum]++;
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return GameSounds[soundnum].data;
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}
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void digi_unlock_sound_data( int soundnum )
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{
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int i;
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if ( !Digi_initialized ) return;
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if ( digi_driver_board <= 0 ) return;
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Assert( digi_sound_locks[soundnum] > 0 );
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if ( digi_sound_locks[soundnum] == 1 ) {
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digi_total_locks--;
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//mprintf(( 0, "Total sound locks = %d\n", digi_total_locks ));
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i = dpmi_unlock_region( GameSounds[soundnum].data, GameSounds[soundnum].len );
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if ( !i ) Error( "Error unlocking sound %d\n", soundnum );
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}
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digi_sound_locks[soundnum]--;
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}
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void digi_reset_digi_sounds() {
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int i;
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for (i = 0; i < DIGI_SLOTS; i++) {
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if (VALID_CHANNEL(SampleHandles[i])) {
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deallocate_voice(SampleHandles[i]);
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SampleHandles[i] = INVALID_CHANNEL;
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}
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if (SoundNums[i] != -1) {
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digi_unlock_sound_data(SoundNums[i]);
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SoundNums[i] = -1;
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}
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}
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for (i=0; i<MAX_SOUNDS; i++ ) {
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Assert( digi_sound_locks[i] == 0 );
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}
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}
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void digi_set_max_channels(int n) {
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digi_max_channels = n;
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if ( digi_max_channels < 1 )
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digi_max_channels = 1;
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if ( digi_max_channels > DIGI_VOICES)
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digi_max_channels = DIGI_VOICES;
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}
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int digi_get_max_channels()
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{
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return digi_max_channels;
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}
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void digi_stop_all_channels()
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{
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int i;
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for (i = 0; i < MAX_SOUND_SLOTS; i++)
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digi_stop_sound(i);
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}
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int get_free_slot() {
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int ntries = 0;
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int ret_slot;
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TryNextChannel:
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// sound playing on slot <next_handle>?
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if ( (VALID_CHANNEL(SampleHandles[next_handle])) &&
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(voice_check(SampleHandles[next_handle])) ) {
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// don't use this slot if loud sound
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if ( (SoundVolumes[next_handle] > digi_volume) &&
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(ntries<digi_max_channels) ) {
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mprintf(( 0, "Not stopping loud sound %d (%d).\n", next_handle, SoundNums[next_handle]));
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next_handle++;
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if ( next_handle >= digi_max_channels )
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next_handle = 0;
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ntries++;
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goto TryNextChannel;
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}
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//mprintf(( 0, "[SS:%d]", next_handle ));
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if (voice_check(next_handle))
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mprintf((0,"Sound: deallocating used voice %d sound %d vol %d pos %d/%d\n", next_handle, SoundNums[next_handle], SoundVolumes[next_handle], voice_get_position(next_handle), GameSounds[SoundNums[next_handle]].len));
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deallocate_voice(SampleHandles[next_handle]);
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SampleHandles[next_handle] = INVALID_CHANNEL;
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}
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if ( SoundNums[next_handle] != -1 ) {
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digi_unlock_sound_data(SoundNums[next_handle]);
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SoundNums[next_handle] = -1;
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}
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ret_slot = next_handle;
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next_handle++;
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if ( next_handle >= digi_max_channels )
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next_handle = 0;
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return ret_slot;
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}
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CHANNEL digi_start_sound(int soundnum, int volume, int pan) {
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int i;
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int channel;
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int slot;
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volume = fixmul(volume, digi_volume);
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slot = get_free_slot();
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digi_lock_sound_data(soundnum);
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channel = play_sample(&GameSounds[soundnum], volume, pan >> 8, 1000, 0);
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if (channel < 0) {
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mprintf(( 1, "NOT ENOUGH SOUND SLOTS!!!\n" ));
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digi_unlock_sound_data(soundnum);
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return -1;
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}
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release_voice(channel);
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//mprintf(( 0, "Starting sound on channel %d\n", channel ));
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#ifndef NDEBUG
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verify_channel_not_used_by_soundobjects(channel);
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#endif
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// find slots pointing to just allocated channel and kill sounds on it
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// (because they can't be playing right now)
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for (i=0; i<digi_max_channels; i++ ) {
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if (SampleHandles[i] == channel) {
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SampleHandles[i] = INVALID_CHANNEL;
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if (SoundNums[i] != -1) {
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digi_unlock_sound_data(SoundNums[i]);
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SoundNums[i] = -1;
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}
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}
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}
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// fill slot with data of just started sample
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SampleHandles[slot] = channel;
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SoundNums[slot] = soundnum;
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SoundVolumes[slot] = volume;
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return channel;
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}
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// Returns the channel a sound number is playing on, or
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// -1 if none.
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int digi_find_channel(int soundno)
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{
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if (!digi_initialised)
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return -1;
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if (soundno < 0 )
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return -1;
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if (GameSounds[soundno].data == NULL)
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{
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Int3();
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return -1;
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}
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//FIXME: not implemented
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return -1;
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}
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int digi_is_sound_playing(int soundno)
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{
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int i;
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soundno = digi_xlat_sound(soundno);
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for (i = 0; i < DIGI_VOICES; i++)
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if (voice_check(i) == &GameSounds[soundno])
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return 1;
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return 0;
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}
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//-killed- void digi_set_midi_volume( int mvolume )
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//-killed- {
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//-killed- int old_volume = midi_volume;
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//-killed-
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//-killed- if ( mvolume > 127 )
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//-killed- midi_volume = 127;
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//-killed- else if ( mvolume < 0 )
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//-killed- midi_volume = 0;
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//-killed- else
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//-killed- midi_volume = mvolume;
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//-killed-
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//-killed- if ( (digi_midi_type > 0) ) {
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//-killed- if ( (old_volume < 1) && ( midi_volume > 1 ) ) {
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//-killed- if (SongHandle == NULL )
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//-killed- digi_play_midi_song( digi_last_midi_song, digi_last_melodic_bank, digi_last_drum_bank, 1 );
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//-killed- }
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//-killed- set_volume(-1, midi_volume * 2 + (midi_volume & 1));
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//-killed- }
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//-killed- }
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void digi_set_digi_volume( int dvolume )
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{
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dvolume = fixmuldiv( dvolume, _DIGI_MAX_VOLUME, 0x7fff);
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if ( dvolume > _DIGI_MAX_VOLUME )
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digi_volume = _DIGI_MAX_VOLUME;
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else if ( dvolume < 0 )
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digi_volume = 0;
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else
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digi_volume = dvolume;
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if ( !Digi_initialized ) return;
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if ( digi_driver_board <= 0 ) return;
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digi_sync_sounds();
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}
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// 0-0x7FFF
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void digi_set_volume( int dvolume, int mvolume )
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{
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digi_set_midi_volume( mvolume );
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digi_set_digi_volume( dvolume );
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// mprintf(( 1, "Volume: 0x%x and 0x%x\n", digi_volume, midi_volume ));
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}
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int digi_is_channel_playing(int channel)
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{
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int i;
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if (!digi_initialised)
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return 0;
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//FIXME: not implemented
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return 0;
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}
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void digi_set_channel_volume(int channel, int volume)
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{
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if (!digi_initialised)
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return;
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//FIXME: not implemented
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}
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void digi_set_channel_pan(int channel, int pan)
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{
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if (!digi_initialised)
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return;
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//FIXME: not implemented
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}
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void digi_stop_sound(int channel)
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{
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//FIXME: not implemented
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}
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void digi_end_sound(int channel)
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{
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if (!digi_initialised)
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return;
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//FIXME: not implemented
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}
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//-killed- void digi_stop_current_song()
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//-killed- {
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//-killed- if (SongHandle) {
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//-killed- destroy_midi(SongHandle);
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//-killed- SongHandle = NULL;
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//-killed- }
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//-killed- }
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//-killed-
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//-killed- void digi_play_midi_song( char * filename, char * melodic_bank, char * drum_bank, int loop )
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//-killed- {
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//-killed- //char fname[128];
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//-killed-
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//-killed- if (!Digi_initialized) return;
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//-killed- if ( digi_midi_type <= 0 ) return;
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//-killed-
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//-killed- digi_stop_current_song();
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//-killed-
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//-killed- if ( filename == NULL ) return;
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//-killed-
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//-killed- strcpy( digi_last_midi_song, filename );
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//-killed- strcpy( digi_last_melodic_bank, melodic_bank );
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//-killed- strcpy( digi_last_drum_bank, drum_bank );
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//-killed-
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//-killed- if ( midi_volume < 1 )
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//-killed-
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//-killed- SongHandle = NULL;
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//-killed-
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//-killed- #if 0 /* needs bank loading to sound right */
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//-killed- if (midi_card <= 4) { /* FM cards */
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//-killed- int sl;
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//-killed- sl = strlen( filename );
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//-killed- strcpy( fname, filename );
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//-killed- fname[sl-1] = 'q';
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//-killed- SongHandle = load_hmp(fname);
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//-killed- }
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//-killed- #endif
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//-killed-
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//-killed- if ( !SongHandle )
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//-killed- SongHandle = load_hmp(filename);
|
|
//-killed-
|
|
//-killed- if (SongHandle) {
|
|
//-killed- if (play_midi(SongHandle, loop)) {
|
|
//-killed- destroy_midi(SongHandle);
|
|
//-killed- SongHandle = NULL;
|
|
//-killed- }
|
|
//-killed- }
|
|
//-killed- if (!SongHandle) {
|
|
//-killed- mprintf( (1, "\nAllegro Error : %s", allegro_error ));
|
|
//-killed- }
|
|
//-killed- }
|
|
|
|
|
|
#ifndef NDEBUG
|
|
void digi_debug()
|
|
{
|
|
int i;
|
|
int n_voices = 0;
|
|
|
|
if (!digi_initialised)
|
|
return;
|
|
|
|
for (i = 0; i < digi_max_channels; i++)
|
|
{
|
|
if (digi_is_channel_playing(i))
|
|
n_voices++;
|
|
}
|
|
|
|
mprintf_at((0, 2, 0, "DIGI: Active Sound Channels: %d/%d (HMI says %d/32) ", n_voices, digi_max_channels, -1));
|
|
//mprintf_at((0, 3, 0, "DIGI: Number locked sounds: %d ", digi_total_locks ));
|
|
}
|
|
|
|
int verify_channel_not_used_by_soundobjects( int channel )
|
|
{
|
|
int i;
|
|
if (digi_driver_board>0) {
|
|
for (i=0; i<MAX_SOUND_OBJECTS; i++ ) {
|
|
if ( SoundObjects[i].flags & SOF_USED ) {
|
|
if ( SoundObjects[i].flags & SOF_PLAYING ) {
|
|
if ( SoundObjects[i].handle == channel ) {
|
|
mprintf(( 0, "ERROR STARTING SOUND CHANNEL ON USED SLOT!!\n" ));
|
|
Int3(); // Get John!
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#if 0 // hud sound debug info
|
|
#include "gr.h"
|
|
#include "gamefont.h"
|
|
#define VIRTUAL_VOICES 256
|
|
void show_digi_info() {
|
|
int i, active_slots = 0, done_slots = 0, allg_used = 0;
|
|
|
|
for (i=0; i<DIGI_SLOTS; i++)
|
|
if (VALID_CHANNEL(SampleHandles[i])) {
|
|
active_slots++;
|
|
if (!voice_check(SampleHandles[i]))
|
|
done_slots++;
|
|
}
|
|
for (i=0; i<VIRTUAL_VOICES; i++)
|
|
if (voice_check(i))
|
|
allg_used++;
|
|
|
|
|
|
gr_set_curfont( GAME_FONT );
|
|
gr_set_fontcolor(gr_getcolor(0,31,0),-1 );
|
|
gr_printf(0,32,"voices: real:%d exp:%d locks:%d sluse:%d sldone:%d aused:%d slnxt:%d",
|
|
digi_driver->voices, digi_max_channels, digi_total_locks,
|
|
active_slots,done_slots,allg_used, next_handle);
|
|
}
|
|
#endif
|