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comparison music2/music.cc @ 3:c4af1e9ab8d1

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music volume can be changed (harcorded constant atm)
author thib
date Fri, 01 Aug 2008 20:07:29 +0000
parents 223b71206888
children fa8511a21d05
comparison
equal deleted inserted replaced
2:422f3cb3614b 3:c4af1e9ab8d1
41 #include<SDL_mixer.h> 41 #include<SDL_mixer.h>
42 #include"wavfile.h" 42 #include"wavfile.h"
43 43
44 using namespace std; 44 using namespace std;
45 45
46 #define MUSIC_VOLUME 0.2
47
46 int pcm_enable = 0; 48 int pcm_enable = 0;
47 Mix_Chunk *play_chunk[MIX_PCM_SIZE]; 49 Mix_Chunk *play_chunk[MIX_PCM_SIZE];
48 50
49 MuSys::MuSys(AyuSysConfig& _config) : config(_config), movie_id(-1), music_enable(1) { 51 MuSys::MuSys(AyuSysConfig& _config) : config(_config), movie_id(-1), music_enable(1) {
50 int i; 52 int i;
196 } else { 198 } else {
197 chunk->wav->Seek(chunk->loop_pt); 199 chunk->wav->Seek(chunk->loop_pt);
198 chunk->wav->Read( (char*)(stream+count*4), 4, len/4-count); 200 chunk->wav->Read( (char*)(stream+count*4), 4, len/4-count);
199 } 201 }
200 } 202 }
203
204 int cur_vol = MUSIC_VOLUME*SDL_MIX_MAXVOLUME;
205
201 if (fadetime_total) { 206 if (fadetime_total) {
202 // 不弛を匿贿面 (fade out) 207 // 不弛を匿贿面 (fade out)
203 int count_total = fadetime_total*(WAVFILE::freq/1000); 208 int count_total = fadetime_total*(WAVFILE::freq/1000);
204 if (fadecount > count_total || fadetime_total == 1) { // 不弛匿贿 209 if (fadecount > count_total || fadetime_total == 1) { // 不弛匿贿
205 chunk->loop_pt = -2; 210 chunk->loop_pt = -2;
206 memset(stream, 0, len); 211 memset(stream, 0, len);
207 return; 212 return;
208 } 213 }
209 // int cur_vol = 256*(count_total-fadecount)/count_total; 214 // int cur_vol = 256*(count_total-fadecount)/count_total;
210 int cur_vol = SDL_MIX_MAXVOLUME*(count_total-fadecount)/count_total; 215 cur_vol = cur_vol*(count_total-fadecount)/count_total;
211 char* stream_dup = new char[len];
212 memcpy(stream_dup, stream, len);
213 memset(stream, 0, len);
214 SDL_MixAudio(stream, (Uint8*)stream_dup, len, cur_vol);
215 fadecount += len/4; 216 fadecount += len/4;
216 } 217 }
218
219 char* stream_dup = new char[len];
220 memcpy(stream_dup, stream, len);
221 memset(stream, 0, len);
222 SDL_MixAudio(stream, (Uint8*)stream_dup, len, cur_vol);
223
217 return; 224 return;
218 } 225 }
219 void bgm_fadeout(int time) { 226 void bgm_fadeout(int time) {
220 fadecount = 0; 227 fadecount = 0;
221 if (time <= 0) time = 1; 228 if (time <= 0) time = 1;
240 wav_playing.wav = wav; 247 wav_playing.wav = wav;
241 wav_playing.loop_pt = loop_pt; 248 wav_playing.loop_pt = loop_pt;
242 fadetime_total = 0; 249 fadetime_total = 0;
243 fadecount = 0; 250 fadecount = 0;
244 Mix_HookMusic( &(WavChunk::callback), (void*)&wav_playing); 251 Mix_HookMusic( &(WavChunk::callback), (void*)&wav_playing);
245 Mix_VolumeMusic(128); 252 Mix_VolumeMusic(MUSIC_VOLUME*MIX_MAX_VOLUME);
246 return; 253 return;
247 } 254 }
248 255
249 void effec_start(int chn, const char* path, int loop, int fadein_time) { 256 void effec_start(int chn, const char* path, int loop, int fadein_time) {
250 if (! pcm_enable) return; 257 if (! pcm_enable) return;