135 lines
3.3 KiB
C
135 lines
3.3 KiB
C
/* altsound.c created on 11/13/99 by Victor Rachels to use alternate sounds */
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "strio.h"
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#include "pstypes.h"
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#include "d_io.h"
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#include "u_mem.h"
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#include "error.h"
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#include "sounds.h"
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#include "digi.h"
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#include "altsound.h"
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int use_alt_sounds=0;
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digi_sound altsound_list[MAX_SOUNDS];
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int use_altsound[MAX_SOUNDS];
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int digi_xlat_sound(int soundnum)
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{
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if (soundnum < 0)
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return -1;
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if (GameArg.SysLowMem)
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{
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soundnum = AltSounds[soundnum];
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if (soundnum == 255)
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return -1;
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}
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Assert(Sounds[soundnum] != 255); //if hit this, probably using undefined sound
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return Sounds[soundnum];
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}
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digi_sound *Sounddat(int soundnum)
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{
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if(use_altsound[soundnum] && altsound_list[soundnum].data)
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return &altsound_list[soundnum];
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else
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{
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int i;
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i = digi_xlat_sound(soundnum);
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if (i < 0)
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return NULL;
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else
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return &(GameSounds[i]);
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}
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}
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void load_alt_sounds(char *soundfile_list)
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{
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FILE *list,*sound;
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char *line,word[256];
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int i,blockalign=0,datsize=0,bits=0,freq=0;
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memset(&use_altsound,0,sizeof(int) * MAX_SOUNDS);
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memset(&altsound_list,0,sizeof(digi_sound) * MAX_SOUNDS);
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list=fopen(soundfile_list,"rt");
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if(!list) return;
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while(!feof(list))
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{
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line=fsplitword(list,'\n');
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if((line) &&
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(line[0]!='#') &&
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(sscanf(line,"%i=%s\n",&i,word)==2) &&
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(i >= 0) &&
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(i <= MAX_SOUNDS) )
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{
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sound=fopen(word,"rb");
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if(sound)
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{
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fseek(sound,40,SEEK_SET);
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fread(&(datsize),sizeof(u_int32_t),1,sound);
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altsound_list[i].data = (void *)d_malloc(datsize);
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if(altsound_list[i].data)
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{
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fseek(sound,34,SEEK_SET);
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fread(&(bits),sizeof(u_int16_t),1,sound);
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fseek(sound,24,SEEK_SET);
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fread(&(freq),sizeof(u_int32_t),1,sound);
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fseek(sound,32,SEEK_SET);
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fread(&(blockalign),sizeof(u_int16_t),1,sound);
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fseek(sound,44,SEEK_SET);
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fread(altsound_list[i].data,datsize,1,sound);
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if(!ferror(sound))
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{
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altsound_list[i].bits=bits;
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altsound_list[i].freq=freq;
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#ifdef ALLEGRO
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altsound_list[i].len=datsize/blockalign;
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altsound_list[i].loop_start=0;
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altsound_list[i].loop_end = altsound_list[i].len;
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altsound_list[i].priority=128;
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altsound_list[i].param=-1;
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#else
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altsound_list[i].length=datsize;
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#endif
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use_alt_sounds++;
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use_altsound[i]=1;
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}
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}
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fclose(sound);
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}
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d_free(line);
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}
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}
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fclose(list);
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}
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void free_alt_sounds()
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{
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int i;
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for(i=0;i<MAX_SOUNDS;i++)
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if(use_altsound[i] && altsound_list[i].data)
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{
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d_free(altsound_list[i].data);
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use_altsound[i]=0;
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use_alt_sounds--;
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}
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for(i=0;i<MAX_SOUNDS;i++)
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if(use_altsound[i] || altsound_list[i].data || use_alt_sounds)
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Error("Something screwed in freeing altsounds (num:%i)\n",i);
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}
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