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     if (SDL_WasInit(SDL_INIT_AUDIO)) {
  68         F_freemus();
  69         Mix_CloseAudio();
  70         SDL_QuitSubSystem(SDL_INIT_AUDIO);
  71     }
  72 }
  73
  74 void S_startmusic(int time)
  75 {
  76     if (musdisabled) return;
  77     Mix_PlayMusic(muslo, -1);
  78     Mix_VolumeMusic(mus_vol);
  79     muscount=time*60*1000/DELAY;
  80 }
  81
  82 void S_stopmusic(void)
  83 {
  84     if (musdisabled) return;
  85     Mix_HaltMusic();
  86     muscount = 0;
  87 }
  88
  89 void S_volumemusic(int v)
  90 {
  91     if (musdisabled) return;
  92     mus_vol = v;
  93     if (mus_vol>128) mus_vol=128;
  94     if (mus_vol<0) mus_vol=0;
  95     if (mus_vol==0 && Mix_PlayingMusic()) {
  96         S_stopmusic();
  97     }
  98     else if (mus_vol>0 && !Mix_PlayingMusic()) {
  99         S_startmusic(music_time);
 100     }
 101     else {
 102         Mix_VolumeMusic(v);
 103     }
 104 }
 105
 106 struct {
 107     Uint8 ascii;
 108     Uint8 asciilc;
 109     char *ch;
 110 } atrans[] = {
 111     {0x80, 0xA0, "A"},//А
 112     {0x81, 0xA1, "B"},//Б
 113     {0x82, 0xA2, "V"},//В
 114     {0x83, 0xA3, "G"},//Г
 115     {0x84, 0xA4, "D"},//Д
 116     {0x85, 0xA5, "E"},//Е
 117     {0x86, 0xA6, "ZH"},//Ж
 118     {0x87, 0xA7, "Z"},//З
 119     {0x88, 0xA8, "I"},//И
 120     {0x89, 0xA9, "J"},//Й
 121     {0x8A, 0xAA, "K"},//К
 122     {0x8B, 0xAB, "L"},//Л
 123     {0x8C, 0xAC, "M"},//М
 124     {0x8D, 0xAD, "N"},//Н
 125     {0x8E, 0xAE, "O"},//О
 126     {0x8F, 0xAF, "P"},//П
 127     {0x90, 0xE0, "R"},//Р
 128     {0x91, 0xE1, "S"},//С
 129     {0x92, 0xE2, "T"},//Т
 130     {0x93, 0xE3, "U"},//У
 131     {0x94, 0xE4, "F"},//Ф
 132     {0x95, 0xE5, "H"},//Х
 133     {0x96, 0xE6, "C"},//Ц
 134     {0x97, 0xE7, "CH"},//Ч
 135     {0x98, 0xE8, "SH"},//Ш
 136     {0x99, 0xE9, "SCH"},//Щ
 137     {0x9A, 0xEA, "X"},//Ъ
 138     {0x9B, 0xEB, "Y"},//Ы
 139     {0x9C, 0xEC, "J"},//Ь
 140     {0x9D, 0xED, "E"},//Э
 141     {0x9E, 0xEE, "JU"},//Ю
 142     {0x9F, 0xEF, "JA"},//Я
 143     {0}
 144 };
 145
 146 char *get_trans_char (Uint8 c)
 147 {
 148     int i = 0;
 149     while (atrans[i].ascii) {
 150
 151         if (atrans[i].ascii == c || atrans[i].asciilc == c) {
 152             return atrans[i].ch;
 153         }
 154         i++;
 155     }
 156     return NULL;
 157 }
 158
 159 void trans_ascii_str (char *dest, char *src)
 160 {
 161     char *p = dest;
 162     int i;
 163     for (i=0; i<strlen(src); i++) {
 164         char *ch = get_trans_char(src[i]);
 165         if (ch) {
 166             strcpy(p,ch);
 167             p+=strlen(ch);
 168         }
 169         else {
 170             strncpy(p,&src[i],1);
 171             p++;
 172         }
 173     }
 174     *p='\0';
 175 }
 176
 177 void F_loadmus(char n[8]) {
 178     if (musdisabled) return;
 179     char f[50];
 180     char name[50];
 181 #ifndef WIN32
 182     strcpy(f, "/usr/share/doom2d-rembo/music/");
 183 #else
 184     strcpy(f, "music\\");
 185 #endif
 186     int l = strlen(f);
 187     strncpy(&f[l], n, 8);
 188     f[l+8]='\0';
 189     trans_ascii_str(name, f);
 190     muslo = Mix_LoadMUS(name);
 191     if (muslo == NULL)
 192     {
 193 #ifndef WIN32
 194         strcpy(f, "music/");
 195         int l = strlen(f);
 196         strncpy(&f[l], n, 8);
 197         f[l+8]='\0';
 198         trans_ascii_str(name, f);
 199         muslo = Mix_LoadMUS(name);
 200 #endif
 201     }
 202     if (!muslo) logo("Music not found '%s'\n", name);
 203
 204 }
 205
 206 void F_freemus(void) {
 207     if (musdisabled) return;
 208     if (muslo) {
 209         Mix_HaltMusic();
 210         Mix_FreeMusic(muslo);
 211     }
 212     muslo = NULL;
 213 }
 214
 215 extern byte g_music[8];
 216
 217 static int volsetcount = 0;
 218
 219 void S_updatemusic()
 220 {
 221     if (musdisabled) return;
 222
 223     //періодично встановлюю гучність музикі, так як вона сама підвищується до максимуму через певний час
 224     volsetcount++;
 225     if (volsetcount%(5*1000/DELAY)==0) {
 226         S_volumemusic(mus_vol);
 227     }
 228
 229     if (muscount>0) {
 230         if (muscount < music_fade*1100/DELAY) {
 231             Mix_FadeOutMusic(music_fade*1000);
 232         }
 233         muscount--;
 234         if (muscount==0) {
 235             if (music_random) F_randmus(g_music);
 236             else F_nextmus(g_music);
 237             F_freemus();
 238             F_loadmus(g_music);
 239             S_startmusic(music_time);
 240         }
 241     }
 242 }