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comparison music2/music.cc @ 37:f88d47a4bf87

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* Modernize configure.ac * Improve a bit BGM playback
author thib
date Tue, 17 Mar 2009 17:47:26 +0000
parents f45da03ca631
children 01aa5ddf7dc8
comparison
equal deleted inserted replaced
36:6d1a5b7f0838 37:f88d47a4bf87
186 int count; 186 int count;
187 if (chunk->loop_pt == -2) { // 再生終了後 187 if (chunk->loop_pt == -2) { // 再生終了後
188 memset(stream, 0, len); 188 memset(stream, 0, len);
189 return; 189 return;
190 } 190 }
191 count = chunk->wav->Read( (char*)stream, 4, len/4); 191
192 char* stream_dup = new char[len];
193 count = chunk->wav->Read( (char*)stream_dup, 4, len/4);
192 194
193 if (count != len/4) { 195 if (count != len/4) {
194 memset(stream+count*4, 0, len-count*4);
195 // 最後まで再生した 196 // 最後まで再生した
196 if (chunk->loop_pt == -1) { // 終了 197 if (chunk->loop_pt == -1) { // 終了
197 chunk->loop_pt = -2; 198 chunk->loop_pt = -2;
199 memset(stream_dup+count*4, 0, len-count*4);
198 } else { 200 } else {
199 chunk->wav->Seek(chunk->loop_pt); 201 chunk->wav->Seek(chunk->loop_pt);
200 chunk->wav->Read( (char*)(stream+count*4), 4, len/4-count); 202 chunk->wav->Read( (char*)(stream_dup+count*4), 4, len/4-count);
201 } 203 }
202 } 204 }
203 205
204 int cur_vol = (*chunk->volmod)*SDL_MIX_MAXVOLUME/255; 206 int cur_vol = (*chunk->volmod)*SDL_MIX_MAXVOLUME/255;
205 207
207 // 音楽を停止中 (fade out) 209 // 音楽を停止中 (fade out)
208 int count_total = fadetime_total*(WAVFILE::freq/1000); 210 int count_total = fadetime_total*(WAVFILE::freq/1000);
209 if (fadecount > count_total || fadetime_total == 1) { // 音楽停止 211 if (fadecount > count_total || fadetime_total == 1) { // 音楽停止
210 chunk->loop_pt = -2; 212 chunk->loop_pt = -2;
211 memset(stream, 0, len); 213 memset(stream, 0, len);
214 delete[] stream_dup;
212 return; 215 return;
213 } 216 }
214 // int cur_vol = 256*(count_total-fadecount)/count_total;
215 cur_vol = cur_vol*(count_total-fadecount)/count_total; 217 cur_vol = cur_vol*(count_total-fadecount)/count_total;
216 fadecount += len/4; 218 fadecount += len/4;
217 } 219 }
218 220
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); 221 SDL_MixAudio(stream, (Uint8*)stream_dup, len, cur_vol);
223 delete[] stream_dup; 222 delete[] stream_dup;
224 223
225 return; 224 return;
226 } 225 }
227 void bgm_fadeout(int time) { 226 void bgm_fadeout(int time) {
228 fadecount = 0; 227 fadecount = 0;
229 if (time <= 0) time = 1; 228 if (time <= 0) time = 1;