src/music.c

   1 /*
   2    Copyright (C) Prikol Software 1996-1997
   3    Copyright (C) Aleksey Volynskov 1996-1997
   4    Copyright (C) <ARembo@gmail.com> 2011
   5
   6    This file is part of the Doom2D:Rembo project.
   7
   8    Doom2D:Rembo is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License version 2 as
  10    published by the Free Software Foundation.
  11
  12    Doom2D:Rembo is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, see <http://www.gnu.org/licenses/> or
  19    write to the Free Software Foundation, Inc.,
  20    51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  21 */
  22
  23 #include "glob.h"
  24 #include "sound.h"
  25 #include "files.h"
  26 #include <SDL.h>
  27 #include <SDL_mixer.h>
  28
  29 short mus_vol = 50;
  30
  31 Mix_Music * muslo;
  32
  33 char music_random = ON;
  34 int music_time = 3;
  35 int music_fade = 5;
  36
  37 Uint32 muscount;
  38
  39 int musdisabled = 1;
  40
  41 void S_initmusic(void)
  42 {
  43     if (!SDL_WasInit(SDL_INIT_AUDIO)) {
  44         if (SDL_InitSubSystem(SDL_INIT_AUDIO) < 0) {
  45             fprintf(stderr, "\nUnable to initialize audio:  %s\n", SDL_GetError());
  46             musdisabled=1;
  47             return;
  48         }
  49
  50         if (Mix_OpenAudio(22050, AUDIO_S16, 1, 1000) < 0) {
  51             fprintf(stderr, "Error initializing SDL_mixer: %s\n", Mix_GetError());
  52             musdisabled=1;
  53             return;
  54         }
  55     }
  56
  57     muslo=NULL;
  58
  59     muscount=0;
  60
  61     musdisabled = (mus_vol==0);
  62
  63    S_volumemusic(mus_vol);
  64 }
  65
  66 void S_donemusic(void)
  67 {
  68     if (SDL_WasInit(SDL_INIT_AUDIO)) {
  69         F_freemus();
  70         Mix_CloseAudio();
  71         SDL_QuitSubSystem(SDL_INIT_AUDIO);
  72     }
  73 }
  74
  75 void S_startmusic(int time)
  76 {
  77     if (musdisabled) return;
  78     Mix_PlayMusic(muslo, -1);
  79     Mix_VolumeMusic(mus_vol);
  80     muscount=time*60*1000/DELAY;
  81 }
  82
  83 void S_stopmusic(void)
  84 {
  85     if (musdisabled) return;
  86     Mix_HaltMusic();
  87     muscount = 0;
  88 }
  89
  90 void S_volumemusic(int v)
  91 {
  92     if (musdisabled) return;
  93     mus_vol = v;
  94     if (mus_vol>128) mus_vol=128;
  95     if (mus_vol<0) mus_vol=0;
  96     if (mus_vol==0 && Mix_PlayingMusic()) {
  97         S_stopmusic();
  98     }
  99     else if (mus_vol>0 && !Mix_PlayingMusic()) {
 100         S_startmusic(music_time);
 101     }
 102     else {
 103         Mix_VolumeMusic(v);
 104     }
 105 }
 106
 107 struct {
 108     Uint8 ascii;
 109     Uint8 asciilc;
 110     char *ch;
 111 } atrans[] = {
 112     {0x80, 0xA0, "A"},//А
 113     {0x81, 0xA1, "B"},//Б
 114     {0x82, 0xA2, "V"},//В
 115     {0x83, 0xA3, "G"},//Г
 116     {0x84, 0xA4, "D"},//Д
 117     {0x85, 0xA5, "E"},//Е
 118     {0x86, 0xA6, "ZH"},//Ж
 119     {0x87, 0xA7, "Z"},//З
 120     {0x88, 0xA8, "I"},//И
 121     {0x89, 0xA9, "J"},//Й
 122     {0x8A, 0xAA, "K"},//К
 123     {0x8B, 0xAB, "L"},//Л
 124     {0x8C, 0xAC, "M"},//М
 125     {0x8D, 0xAD, "N"},//Н
 126     {0x8E, 0xAE, "O"},//О
 127     {0x8F, 0xAF, "P"},//П
 128     {0x90, 0xE0, "R"},//Р
 129     {0x91, 0xE1, "S"},//С
 130     {0x92, 0xE2, "T"},//Т
 131     {0x93, 0xE3, "U"},//У
 132     {0x94, 0xE4, "F"},//Ф
 133     {0x95, 0xE5, "H"},//Х
 134     {0x96, 0xE6, "C"},//Ц
 135     {0x97, 0xE7, "CH"},//Ч
 136     {0x98, 0xE8, "SH"},//Ш
 137     {0x99, 0xE9, "SCH"},//Щ
 138     {0x9A, 0xEA, "X"},//Ъ
 139     {0x9B, 0xEB, "Y"},//Ы
 140     {0x9C, 0xEC, "J"},//Ь
 141     {0x9D, 0xED, "E"},//Э
 142     {0x9E, 0xEE, "JU"},//Ю
 143     {0x9F, 0xEF, "JA"},//Я
 144     {0}
 145 };
 146
 147 char *get_trans_char (Uint8 c)
 148 {
 149     int i = 0;
 150     while (atrans[i].ascii) {
 151
 152         if (atrans[i].ascii == c || atrans[i].asciilc == c) {
 153             return atrans[i].ch;
 154         }
 155         i++;
 156     }
 157     return NULL;
 158 }
 159
 160 void trans_ascii_str (char *dest, char *src)
 161 {
 162     char *p = dest;
 163     int i;
 164     for (i=0; i<strlen(src); i++) {
 165         char *ch = get_trans_char(src[i]);
 166         if (ch) {
 167             strcpy(p,ch);
 168             p+=strlen(ch);
 169         }
 170         else {
 171             strncpy(p,&src[i],1);
 172             p++;
 173         }
 174     }
 175     *p='\0';
 176 }
 177
 178 void F_loadmus(char n[8]) {
 179     if (musdisabled) return;
 180     char f[50];
 181     char name[50];
 182 #ifndef WIN32
 183     strcpy(f, "/usr/share/doom2d-rembo/music/");
 184 #else
 185     strcpy(f, "music\\");
 186 #endif
 187     int l = strlen(f);
 188     strncpy(&f[l], n, 8);
 189     f[l+8]='\0';
 190     trans_ascii_str(name, f);
 191     muslo = Mix_LoadMUS(name);
 192     if (muslo == NULL)
 193     {
 194 #ifndef WIN32
 195         strcpy(f, "music/");
 196         int l = strlen(f);
 197         strncpy(&f[l], n, 8);
 198         f[l+8]='\0';
 199         trans_ascii_str(name, f);
 200         muslo = Mix_LoadMUS(name);
 201 #endif
 202     }
 203     if (!muslo) logo("Music not found '%s'\n", name);
 204
 205 }
 206
 207 void F_freemus(void) {
 208     if (musdisabled) return;
 209     if (muslo) {
 210         Mix_HaltMusic();
 211         Mix_FreeMusic(muslo);
 212     }
 213     muslo = NULL;
 214 }
 215
 216 extern char g_music[8];
 217
 218 static int volsetcount = 0;
 219
 220 void S_updatemusic()
 221 {
 222     if (musdisabled) return;
 223
 224     //періодично встановлюю гучність музикі, так як вона сама підвищується до максимуму через певний час
 225     volsetcount++;
 226     if (volsetcount%(5*1000/DELAY)==0) {
 227         S_volumemusic(mus_vol);
 228     }
 229
 230     if (muscount>0) {
 231         if (muscount < music_fade*1100/DELAY) {
 232             Mix_FadeOutMusic(music_fade*1000);
 233         }
 234         muscount--;
 235         if (muscount==0) {
 236             if (music_random) F_randmus(g_music);
 237             else F_nextmus(g_music);
 238             F_freemus();
 239             F_loadmus(g_music);
 240             S_startmusic(music_time);
 241         }
 242     }
 243 }