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 <SDL.h>
  26 #include <SDL_mixer.h>
  27
  28 short mus_vol = 50;
  29
  30 Mix_Music * muslo;
  31
  32 char music_random = ON;
  33 int music_time = 3;
  34 int music_fade = 5;
  35
  36 Uint32 muscount;
  37
  38 int musdisabled = 1;
  39
  40 void S_initmusic(void)
  41 {
  42     if (!SDL_WasInit(SDL_INIT_AUDIO)) {
  43         if (SDL_InitSubSystem(SDL_INIT_AUDIO) < 0) {
  44             fprintf(stderr, "\nUnable to initialize audio:  %s\n", SDL_GetError());
  45             musdisabled=1;
  46             return;
  47         }
  48
  49         if (Mix_OpenAudio(22050, AUDIO_S16, 1, 1000) < 0) {
  50             fprintf(stderr, "Error initializing SDL_mixer: %s\n", Mix_GetError());
  51             musdisabled=1;
  52             return;
  53         }
  54     }
  55
  56     muslo=NULL;
  57
  58     muscount=0;
  59
  60     musdisabled = (mus_vol==0);
  61
  62    S_volumemusic(mus_vol);
  63 }
  64
  65 void S_donemusic(void)
  66 {
  67     F_freemus();
  68     Mix_CloseAudio();
  69     SDL_QuitSubSystem(SDL_INIT_AUDIO);
  70 }
  71
  72 void S_startmusic(int time)
  73 {
  74     if (musdisabled) return;
  75     Mix_PlayMusic(muslo, -1);
  76     Mix_VolumeMusic(mus_vol);
  77     muscount=time*60*1000/DELAY;
  78 }
  79
  80 void S_stopmusic(void)
  81 {
  82     if (musdisabled) return;
  83     Mix_HaltMusic();
  84     muscount = 0;
  85 }
  86
  87 void S_volumemusic(int v)
  88 {
  89     if (musdisabled) return;
  90     mus_vol = v;
  91     if (mus_vol>128) mus_vol=128;
  92     if (mus_vol<0) mus_vol=0;
  93     if (mus_vol==0 && Mix_PlayingMusic()) {
  94         S_stopmusic();
  95     }
  96     else if (mus_vol>0 && !Mix_PlayingMusic()) {
  97         S_startmusic(music_time);
  98     }
  99     else {
 100         Mix_VolumeMusic(v);
 101     }
 102 }
 103
 104 struct {
 105     Uint8 ascii;
 106     Uint8 asciilc;
 107     char *ch;
 108 } atrans[] = {
 109     {0x80, 0xA0, "A"},//А
 110     {0x81, 0xA1, "B"},//Б
 111     {0x82, 0xA2, "V"},//В
 112     {0x83, 0xA3, "G"},//Г
 113     {0x84, 0xA4, "D"},//Д
 114     {0x85, 0xA5, "E"},//Е
 115     {0x86, 0xA6, "ZH"},//Ж
 116     {0x87, 0xA7, "Z"},//З
 117     {0x88, 0xA8, "I"},//И
 118     {0x89, 0xA9, "J"},//Й
 119     {0x8A, 0xAA, "K"},//К
 120     {0x8B, 0xAB, "L"},//Л
 121     {0x8C, 0xAC, "M"},//М
 122     {0x8D, 0xAD, "N"},//Н
 123     {0x8E, 0xAE, "O"},//О
 124     {0x8F, 0xAF, "P"},//П
 125     {0x90, 0xE0, "R"},//Р
 126     {0x91, 0xE1, "S"},//С
 127     {0x92, 0xE2, "T"},//Т
 128     {0x93, 0xE3, "U"},//У
 129     {0x94, 0xE4, "F"},//Ф
 130     {0x95, 0xE5, "H"},//Х
 131     {0x96, 0xE6, "C"},//Ц
 132     {0x97, 0xE7, "CH"},//Ч
 133     {0x98, 0xE8, "SH"},//Ш
 134     {0x99, 0xE9, "SCH"},//Щ
 135     {0x9A, 0xEA, "X"},//Ъ
 136     {0x9B, 0xEB, "Y"},//Ы
 137     {0x9C, 0xEC, "J"},//Ь
 138     {0x9D, 0xED, "E"},//Э
 139     {0x9E, 0xEE, "JU"},//Ю
 140     {0x9F, 0xEF, "JA"},//Я
 141     {0}
 142 };
 143
 144 char *get_trans_char (Uint8 c)
 145 {
 146     int i = 0;
 147     while (atrans[i].ascii) {
 148
 149         if (atrans[i].ascii == c || atrans[i].asciilc == c) {
 150             return atrans[i].ch;
 151         }
 152         i++;
 153     }
 154     return NULL;
 155 }
 156
 157 void trans_ascii_str (char *dest, char *src)
 158 {
 159     char *p = dest;
 160     int i;
 161     for (i=0; i<strlen(src); i++) {
 162         char *ch = get_trans_char(src[i]);
 163         if (ch) {
 164             strcpy(p,ch);
 165             p+=strlen(ch);
 166         }
 167         else {
 168             strncpy(p,&src[i],1);
 169             p++;
 170         }
 171     }
 172     *p='\0';
 173 }
 174
 175 void F_loadmus(char n[8]) {
 176     if (musdisabled) return;
 177     char f[50];
 178 #ifndef WIN32
 179     strcpy(f,"music/");
 180 #else
 181     strcpy(f,"music\\");
 182 #endif
 183     strncpy(&f[6], n, 8);
 184     f[6+8]='\0';
 185     muslo = Mix_LoadMUS(f);
 186     if (muslo == NULL) {
 187         char name[50];
 188         trans_ascii_str(name, f);
 189         muslo = Mix_LoadMUS(name);
 190         if (!muslo) logo("Music not found '%s'\n", name);
 191     }
 192 }
 193
 194
 195 void F_freemus(void) {
 196     if (musdisabled) return;
 197     if (muslo) {
 198         Mix_HaltMusic();
 199         Mix_FreeMusic(muslo);
 200     }
 201     muslo = NULL;
 202 }
 203
 204 extern byte g_music[8];
 205
 206 static int volsetcount = 0;
 207
 208 void S_updatemusic()
 209 {
 210     if (musdisabled) return;
 211
 212     //періодично встановлюю гучність музикі, так як вона сама підвищується до максимуму через певний час
 213     volsetcount++;
 214     if (volsetcount%(5*1000/DELAY)==0) {
 215         S_volumemusic(mus_vol);
 216     }
 217
 218     if (muscount>0) {
 219         if (muscount < music_fade*1100/DELAY) {
 220             Mix_FadeOutMusic(music_fade*1000);
 221         }
 222         muscount--;
 223         if (muscount==0) {
 224             if (music_random) F_randmus(g_music);
 225             else F_nextmus(g_music);
 226             F_freemus();
 227             F_loadmus(g_music);
 228             S_startmusic(music_time);
 229         }
 230     }
 231 }