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0
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1 /*
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2 * Copyright (c) 2004-2006 Kazunori "jagarl" Ueno
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3 * All rights reserved.
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4 *
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5 * Redistribution and use in source and binary forms, with or without
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6 * modification, are permitted provided that the following conditions
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7 * are met:
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8 * 1. Redistributions of source code must retain the above copyright
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9 * notice, this list of conditions and the following disclaimer.
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10 * 2. Redistributions in binary form must reproduce the above copyright
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11 * notice, this list of conditions and the following disclaimer in the
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12 * documentation and/or other materials provided with the distribution.
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13 * 3. The name of the author may not be used to endorse or promote products
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14 * derived from this software without specific prior written permission.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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26 */
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27
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28 /* music.cc SDL_mixer を用いた音楽再生ルーチン */
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29
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30
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31 #include <string.h>
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32 #include <stdio.h>
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33 #include <unistd.h>
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34 #include <fcntl.h>
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35 #include <ctype.h>
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36 #include <signal.h>
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37 #include"system/system_config.h"
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38 #include"system/file.h"
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39 #include "music.h"
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40 #include<SDL.h>
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41 #include<SDL_mixer.h>
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42 #include"wavfile.h"
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43
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44 using namespace std;
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45
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46 int pcm_enable = 0;
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47 Mix_Chunk *play_chunk[MIX_PCM_SIZE];
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48
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49 MuSys::MuSys(AyuSysConfig& _config) : config(_config), movie_id(-1), music_enable(1) {
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50 int i;
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51 for (i=0; i<MIX_PCM_SIZE; i++)
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52 play_chunk[i] = 0;
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53 cdrom_track[0] = 0;
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54 effec_track[0] = 0;
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55 }
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56
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57
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58 // #define delete fprintf(stderr,"smus.cc: %d.",__LINE__), delete
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59
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60 void bgm_start(const char* path, int loop_pt);
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61 void effec_start(int chn, const char* path, int loop, int fadein_time);
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62 void bgm_fadeout(int time);
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63
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64 void MuSys::PlayCDROM(char* name, int play_count) {
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65 char wave[128]; wave[127] = '\0'; wave[0] = '\0';
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66
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67 strcpy(cdrom_track, name);
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68
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69 StopCDROM(0);
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70 strcpy(cdrom_track, name);
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71
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72 /* name -> track */
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73 int track =config.track_name.CDTrack(name);
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74 if (track == -1) track = atoi(name);
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75 if (config.track_name.WaveTrack(name) != 0) strncpy(wave, config.track_name.WaveTrack(name), 127);
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76 if (wave[0] == 0 && track != 0) { /* DSTRACK が見つからない場合、CDTRACKを使用する */
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77 sprintf(wave, "audio_%02d",track);
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78 }
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79 if (wave == 0) return;
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80 // BGM 再生
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81 if (!pcm_enable) return;
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82 if (play_count == 0)
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83 bgm_start(wave, -1);
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84 else
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85 bgm_start(wave, config.track_name.TrackStart(name));
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86 return;
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87 }
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88
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89 void MuSys::StopCDROM(int time)
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90 {
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91 cdrom_track[0] = '\0';
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92 if (!pcm_enable) return;
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93 bgm_fadeout(time);
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94 }
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95
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96 void MuSys::PlaySE(const char* se, int loop_flag, int channel) {
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97 if (! pcm_enable) return;
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98 if (loop_flag)
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99 effec_start(MIX_PCM_EFFEC, se, 10000, 0);
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100 else
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101 effec_start(MIX_PCM_EFFEC, se, 0, 0);
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102 return;
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103 }
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104 void MuSys::PlaySE(int number) {
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105 if (! pcm_enable) return;
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106 const char* se_name = config.track_name.SETrack(number);
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107 if (se_name == 0) return;
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108 effec_start(MIX_PCM_EFFEC, se_name, 0, 0);
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109 return;
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110 }
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111 void MuSys::StopSE(int time) {
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112 if (! pcm_enable) return;
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113 if (time == 0)
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114 Mix_HaltChannel(MIX_PCM_EFFEC);
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115 else
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116 Mix_FadeOutChannel(MIX_PCM_EFFEC, time);
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117 }
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118 bool MuSys::IsStopSE(void) {
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119 if (! pcm_enable) return true;
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120 if (Mix_Playing(MIX_PCM_EFFEC) != 0) return false;
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121 return true;
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122 }
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123
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124 void MuSys::StopKoe(int time) {
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125 if (! pcm_enable) return;
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126 if (time == 0) Mix_HaltChannel(MIX_PCM_KOE);
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127 else Mix_FadeOutChannel(MIX_PCM_KOE, time);
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128 }
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129
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130 void MuSys::InitMusic(void)
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131 {
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132 if (music_enable != 1) return;
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133 cdrom_track[0] = '\0';
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134 if ( Mix_OpenAudio( 44100, MIX_DEFAULT_FORMAT, MIX_DEFAULT_CHANNELS, DEFAULT_AUDIOBUF ) < 0 ){
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135 // if ( Mix_OpenAudio( 48000, MIX_DEFAULT_FORMAT, MIX_DEFAULT_CHANNELS, DEFAULT_AUDIOBUF ) < 0 ){
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136 return;
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137 }
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138 int freq, channels; Uint16 format;
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139 if ( Mix_QuerySpec(&freq, &format, &channels) ) {
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140 WAVFILE::freq = freq;
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141 WAVFILE::format = format;
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142 WAVFILE::channels = channels;
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143 }
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144 pcm_enable = 1;
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145 Mix_AllocateChannels( MIX_PCM_SIZE);
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146 music_enable = 2;
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147 return;
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148 }
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149 void MuSys::FinalizeMusic(void)
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150 {
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151 if (music_enable != 2) return;
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152 int i;
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153 for (i=0; i<MIX_PCM_SIZE; i++) {
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154 Mix_HaltChannel(i);
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155 if (play_chunk[i]) {
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156 Mix_FreeChunk(play_chunk[i]);
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157 }
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158 play_chunk[i] = 0;
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159 }
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160 Mix_HaltMusic();
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161 Mix_HookMusic(0,0);
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162 Mix_CloseAudio();
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163 pcm_enable = 0;
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164 music_enable = 1;
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165 }
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166
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167 /*************************************************************************
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168 **
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169 ** ファイル読み込み / 外部コマンド呼び出し
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170 */
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171
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172 struct WavChunk {
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173 WAVFILE* wav;
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174 int loop_pt;
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175 static void callback(void* userdata, Uint8* stream, int len);
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176 };
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177 WavChunk wav_playing;
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178 static int fadetime_total;
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179 static int fadecount;
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180
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181 void WavChunk::callback(void *userdata, Uint8 *stream, int len)
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182 {
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183 WavChunk* chunk = (WavChunk*)userdata;
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184 int count;
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185 if (chunk->loop_pt == -2) { // 再生終了後
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186 memset(stream, 0, len);
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187 return;
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188 }
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189 count = chunk->wav->Read( (char*)stream, 4, len/4);
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190
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191 if (count != len/4) {
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192 memset(stream+count*4, 0, len-count*4);
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193 // 最後まで再生した
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194 if (chunk->loop_pt == -1) { // 終了
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195 chunk->loop_pt = -2;
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196 } else {
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197 chunk->wav->Seek(chunk->loop_pt);
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198 chunk->wav->Read( (char*)(stream+count*4), 4, len/4-count);
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199 }
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200 }
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201 if (fadetime_total) {
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202 // 音楽を停止中 (fade out)
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203 int count_total = fadetime_total*(WAVFILE::freq/1000);
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204 if (fadecount > count_total || fadetime_total == 1) { // 音楽停止
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205 chunk->loop_pt = -2;
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206 memset(stream, 0, len);
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207 return;
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208 }
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209 // int cur_vol = 256*(count_total-fadecount)/count_total;
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210 int cur_vol = SDL_MIX_MAXVOLUME*(count_total-fadecount)/count_total;
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211 char* stream_dup = new char[len];
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212 memcpy(stream_dup, stream, len);
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213 memset(stream, 0, len);
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214 SDL_MixAudio(stream, (Uint8*)stream_dup, len, cur_vol);
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215 fadecount += len/4;
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216 }
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217 return;
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218 }
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219 void bgm_fadeout(int time) {
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220 fadecount = 0;
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221 if (time <= 0) time = 1;
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222 fadetime_total = time;
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223 }
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224
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225 static SDL_RWops* OpenSDLRW(const char* path);
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226 static WAVFILE* OpenWaveFile(const char* path);
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227 void bgm_start(const char* path, int loop_pt) {
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228 if (! pcm_enable) return;
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229 fprintf(stderr,"bgm start %s\n",path);
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230 WAVFILE* wav = OpenWaveFile(path);
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231 if (wav == 0) return;
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232 Mix_PauseMusic();
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233 Mix_HaltMusic();
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234 Mix_HookMusic(0,0);
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235 /* 前に再生していたのを終了 */
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236 if (wav_playing.wav) {
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237 delete wav_playing.wav;
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238 wav_playing.wav = 0;
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239 }
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240 wav_playing.wav = wav;
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241 wav_playing.loop_pt = loop_pt;
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242 fadetime_total = 0;
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243 fadecount = 0;
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244 Mix_HookMusic( &(WavChunk::callback), (void*)&wav_playing);
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245 Mix_VolumeMusic(128);
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246 return;
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247 }
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248
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249 void effec_start(int chn, const char* path, int loop, int fadein_time) {
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250 if (! pcm_enable) return;
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251 SDL_RWops* op = OpenSDLRW(path);
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252 if (op == 0) { // ファイルが見付からない
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253 return;
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254 }
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255 Mix_Pause(chn);
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256
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257 if (play_chunk[chn]) {
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258 Mix_FreeChunk(play_chunk[chn]);
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259 }
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260 play_chunk[chn] = Mix_LoadWAV_RW(op, 1);
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261 if (fadein_time <= 0) {
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262 Mix_Volume(chn, 128);
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263 Mix_PlayChannel(chn, play_chunk[chn],loop);
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264 } else {
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265 Mix_Volume(chn, 128);
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266 Mix_FadeInChannel(chn, play_chunk[chn],loop,fadein_time);
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267 }
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268 return;
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269 }
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270
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271 void MuSys::PlayKoe(const char* path) {
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272 if (! pcm_enable) return;
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273 static char* playing_koedata = 0;
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274 int len = 0;
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275 AvgKoeInfo koeinfo;
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276 int chn = MIX_PCM_KOE;
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277
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278 Mix_Pause(chn);
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279 Mix_HaltChannel(chn); // これで RWop が解放されるはず…
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280 if (play_chunk[chn]) {
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281 Mix_FreeChunk(play_chunk[chn]);
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282 play_chunk[chn] = 0;
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283 }
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284
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285 if (playing_koedata) {
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286 delete[] playing_koedata;
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287 playing_koedata = 0;
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288 }
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289
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290 koeinfo = OpenKoeFile(path);
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291
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292 if (koeinfo.stream == 0) return;
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293 playing_koedata = decode_koe(koeinfo, &len);
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294 fclose(koeinfo.stream);
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295 if (playing_koedata == 0) {
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296 return;
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297 }
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298 Mix_Volume(chn, 128);
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299 play_chunk[chn] = Mix_LoadWAV_RW(SDL_RWFromMem(playing_koedata, len+0x2c), 1);
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300 Mix_PlayChannel(chn, play_chunk[chn],0);
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301 return;
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302 }
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303 AvgKoeInfo OpenKoeFile(const char* path) {
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304 int radix = 10000;
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305 /* if (global_system.Version() >= 2) */ radix *= 10;
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306 AvgKoeInfo info;
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307 info.stream = 0; info.length = 0; info.offset = 0;
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308 if (isdigit(path[0]) && strchr(path,'.') == 0) { // 数値 (拡張子等なし)
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309 /* avg32 形式の音声アーカイブのキャッシュを検索 */
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310 int pointer = atoi(path);
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311 int file_no = pointer / radix;
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312 int index = pointer % radix;
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313 info = FindKoe(file_no, index);
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314 } else { // ファイル
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315 int length;
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316 ARCINFO* arcinfo = file_searcher.Find(FILESEARCH::KOE,path,".WPD");
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317 if (arcinfo == 0) return info;
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318 info.stream = arcinfo->OpenFile(&length);
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319 info.rate = 22050;
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320 info.length = length;
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321 info.offset = ftell(info.stream);
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322 info.type = koe_unknown;
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323 delete arcinfo;
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324 }
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325 return info;
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326 }
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327
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328 static SDL_RWops* OpenSDLRW(const char* path) {
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329 char cmdline_buf[1024];
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330 /* まず wav ファイルを探す */
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331 ARCINFO* info = file_searcher.Find(FILESEARCH::WAV,path,".wav");
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332 if (info == 0) {
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333 info = file_searcher.Find(FILESEARCH::WAV,path,".nwa");
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334 if (info == 0) info = file_searcher.Find(FILESEARCH::BGM,path,"nwa");
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335 if (info) { // read NWA file
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336
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337 static char* nwa_buffer = 0;
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338 int dummy;
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339 FILE* f = info->OpenFile(&dummy);
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340 static char* d = 0;
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341 int sz;
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342 if (d != 0) delete[] d;
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343 d = NWAFILE::ReadAll(f, sz);
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344 return SDL_RWFromMem(d, sz);
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345 }
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346 }
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347 if (info == 0) info = file_searcher.Find(FILESEARCH::BGM,path,"wav");
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348 if (info == 0) info = file_searcher.Find(FILESEARCH::WAV,path,".ogg");
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349 if (info) {
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350 int dummy;
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351 FILE* f = info->OpenFile(&dummy);
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352 delete info;
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353 if (f == 0) return 0;
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354 SDL_RWops* op = SDL_RWFromFP(f, 1);
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355 return op;
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356 }
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357 return 0;
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358 }
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359
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360 static WAVFILE* OpenWaveFile(const char* path) {
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361 char cmdline_buf[1024];
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362 /* まず wav ファイルを探す */
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363 ARCINFO* info = file_searcher.Find(FILESEARCH::WAV,path,".wav");
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364 if (info == 0) info = file_searcher.Find(FILESEARCH::BGM,path,"wav");
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365 if (info) {
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366 int size;
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367 FILE* f = info->OpenFile(&size);
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368 delete info;
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369 if (f == 0) return 0;
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370 WAVFILE* w = WAVFILE::MakeConverter(new WAVFILE_Stream(f, size));
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371 return w;
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372 }
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373 /* 次に nwa ファイル */
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374 info = file_searcher.Find(FILESEARCH::WAV,path,".nwa");
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375 if (info == 0) info = file_searcher.Find(FILESEARCH::BGM,path,"nwa");
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376 if (info) {
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377 int size;
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378 FILE* f = info->OpenFile(&size);
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379 delete info;
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380 if (f == 0) return 0;
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381 WAVFILE* w = WAVFILE::MakeConverter(new NWAFILE(f));
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382 return w;
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383 }
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384
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385 /* 次に mp3 ファイル */
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386 info = file_searcher.Find(FILESEARCH::WAV,path,".mp3");
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387 if (info == 0) info = file_searcher.Find(FILESEARCH::BGM,path,"mp3");
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388 if (info) {
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389 int size;
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390 FILE* f = info->OpenFile(&size);
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391 delete info;
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392 if (f == 0) return 0;
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393 MP3FILE* w = new MP3FILE(f, size);
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394 if (w->pimpl) {
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395 return WAVFILE::MakeConverter(w);
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396 }
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397 delete w;
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398 }
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399
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400 /* 次に ogg ファイル */
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401 info = file_searcher.Find(FILESEARCH::WAV,path,".ogg");
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402 if (info == 0) info = file_searcher.Find(FILESEARCH::BGM,path,"ogg");
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403 if (info) {
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404 int size;
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405 FILE* f = info->OpenFile(&size);
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406 delete info;
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407 if (f == 0) return 0;
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408 OggFILE* w = new OggFILE(f, size);
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409 if (w->pimpl) {
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410 return WAVFILE::MakeConverter(w);
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411 }
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412 delete w;
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|
|
413 }
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414 return 0;
|
|
|
415 }
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416
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