17 */ |
18 */ |
18 |
19 |
19 #include "openalbridge.h" |
20 #include "openalbridge.h" |
20 |
21 |
21 |
22 |
22 #ifdef __CPLUSPLUS |
23 char *prog; |
23 extern "C" { |
24 |
24 #endif |
25 /*Buffers hold sound data*/ |
25 |
26 ALuint *Buffers; |
26 /*Sources are points emitting sound*/ |
27 /*index for Sources and Buffers*/ |
27 ALuint *Sources; |
28 ALuint globalindex, globalsize, increment; |
28 /*Buffers hold sound data*/ |
29 |
29 ALuint *Buffers; |
30 //null vector |
30 /*index for Sources and Buffers*/ |
31 const ALfloat NV[] = {0.0f, 0.0f, 0.0f}; |
31 ALuint globalindex, globalsize, increment; |
32 //listener orientation |
32 |
33 const ALfloat LO[] = {0.0f, 0.0f, -1.0f, 0.0f, 1.0f, 0.0f}; |
33 ALboolean openalReady = AL_FALSE; |
34 |
34 |
35 SSound_t aSounds[MAX_SOUNDS]; |
35 ALboolean openal_close (void) { |
36 int iNumSounds = 0; |
36 /*Stop all sounds, deallocate all memory and close OpenAL */ |
37 char oalbReady = 0; |
37 ALCcontext *context; |
38 |
38 ALCdevice *device; |
39 ALCcontext *context; |
39 |
40 ALCdevice *device; |
40 if (openalReady == AL_FALSE) { |
41 ALuint sources[MAX_SOURCES]; |
41 errno = EPERM; |
42 |
42 err_ret("(%s) WARN - OpenAL not initialized", prog); |
43 |
43 return AL_FALSE; |
44 |
|
45 |
|
46 |
|
47 /** |
|
48 * const char oalb_init (const char* programname, const char usehardware) |
|
49 * |
|
50 * ARGUMENTS |
|
51 * programname [const char*]: name of the program invoking OpenAL |
|
52 * usehardware [const char] : flag to enable audio hardware acceleration |
|
53 * DESCRIPTION |
|
54 * |
|
55 * RETURN |
|
56 * 1 success |
|
57 * 2 error |
|
58 */ |
|
59 |
|
60 char oalb_init (const char* programname, const char usehardware) { |
|
61 prog = (char *) programname; |
|
62 |
|
63 if (oalbReady == AL_TRUE) { |
|
64 errno = EPERM; |
|
65 err_ret("(%s) WARN - OpenAL already initialized", prog); |
|
66 return AL_FALSE; |
|
67 } |
|
68 |
|
69 #ifdef _WIN32 |
|
70 /* Hardware acceleration is broken on some windows card*/ |
|
71 if (usehardware != 0) |
|
72 device = alcOpenDevice(NULL); |
|
73 else |
|
74 { |
|
75 device = alcOpenDevice("Generic Software"); |
|
76 if(!device) |
|
77 { |
|
78 err_msg("(%s) WARN - Failed to open software device", prog); |
|
79 device = alcOpenDevice(NULL); |
44 } |
80 } |
45 |
81 } |
46 alSourceStopv (globalsize, Sources); |
82 #else |
47 alDeleteSources (globalsize, Sources); |
83 /*always hardware for UNIX systems*/ |
48 alDeleteBuffers (globalsize, Buffers); |
84 device = alcOpenDevice(NULL); |
49 |
85 #endif |
50 free(Sources); |
86 |
51 free(Buffers); |
87 if (device == NULL) { |
52 |
88 errno = ENODEV; |
53 context = alcGetCurrentContext(); |
89 err_ret("(%s) WARN - Failed to open sound device", prog); |
54 device = alcGetContextsDevice(context); |
90 return AL_FALSE; |
55 |
91 } |
56 alcMakeContextCurrent(NULL); |
92 |
57 alcDestroyContext(context); |
93 err_msg("(%s) INFO - Using OpenAL device: %s", prog, alcGetString(device, ALC_DEVICE_SPECIFIER)); |
58 alcCloseDevice(device); |
94 |
59 |
95 context = alcCreateContext(device, NULL); |
60 openalReady = AL_FALSE; |
96 alcMakeContextCurrent(context); |
61 |
97 |
62 return AL_TRUE; |
98 if (AlGetError("(%s) WARN - Failed to create a new contex") != AL_TRUE) |
63 } |
99 return AL_FALSE; |
64 |
100 |
65 ALboolean openal_ready(void) { |
101 |
66 return openalReady; |
102 /*set the listener gain, position (on xyz axes), velocity (one value for each axe) and orientation*/ |
67 } |
103 alListenerf (AL_GAIN, 1.0f); |
68 |
104 alListenerfv(AL_POSITION, NV); |
69 ALboolean openal_init(char* programname, ALboolean usehardware, uint32_t memorysize) { |
105 alListenerfv(AL_VELOCITY, NV); |
70 /*Initialize an OpenAL contex and allocate memory space for data and buffers*/ |
106 alListenerfv(AL_ORIENTATION, LO); |
71 ALCcontext *context; |
107 |
72 ALCdevice *device; |
108 alcProcessContext(context); |
73 const ALCchar *default_device; |
109 |
74 |
110 if (AlGetError("(%s) WARN - Failed to set Listener properties") != AL_TRUE) |
75 prog = programname; |
111 return AL_FALSE; |
76 |
112 |
77 /*Position of the listener*/ |
113 alGenSources(MAX_SOURCES, sources); |
78 ALfloat ListenerPos[] = { 0.0, 0.0, 0.0 }; |
114 |
79 /*Velocity of the listener*/ |
115 oalbReady = AL_TRUE; |
80 ALfloat ListenerVel[] = { 0.0, 0.0, 0.0 }; |
116 |
81 /*Orientation of the listener. (first 3 elements are "at", second 3 are "up")*/ |
117 alGetError(); /* clear any AL errors beforehand */ |
82 ALfloat ListenerOri[] = { 0.0, 0.0, -1.0, 0.0, 1.0, 0.0 }; |
118 return AL_TRUE; |
83 |
119 } |
84 if (openalReady == AL_TRUE) { |
120 |
85 errno = EPERM; |
121 |
86 err_ret("(%s) WARN - OpenAL already initialized", prog); |
122 /** |
87 return AL_FALSE; |
123 * void oalb_close(void) |
|
124 * |
|
125 * ARGUMENTS |
|
126 * - |
|
127 * DESCRIPTION |
|
128 * |
|
129 * RETURN |
|
130 * - |
|
131 */ |
|
132 |
|
133 void oalb_close(void) { |
|
134 /*Stop all sounds, deallocate all memory and close OpenAL */ |
|
135 int i; |
|
136 |
|
137 if (oalbReady == 0) { |
|
138 errno = EPERM; |
|
139 err_ret("(%s) WARN - OpenAL not initialized", prog); |
|
140 return; |
|
141 } |
|
142 |
|
143 for(i = 0; i < iNumSounds; i++) { |
|
144 SSound_stop(&aSounds[i]); |
|
145 SSound_close(&aSounds[i]); |
|
146 } |
|
147 |
|
148 alSourceStopv (MAX_SOURCES, sources); |
|
149 alDeleteSources (MAX_SOURCES, sources); |
|
150 |
|
151 alcMakeContextCurrent(NULL); |
|
152 alcDestroyContext(context); |
|
153 alcCloseDevice(device); |
|
154 |
|
155 oalbReady = 0; |
|
156 |
|
157 return; |
|
158 } |
|
159 |
|
160 char oalb_ready(void) { |
|
161 return oalbReady; |
|
162 } |
|
163 |
|
164 /** |
|
165 * const int32_t oalb_loadfile (const char *filename) |
|
166 * |
|
167 * ARGUMENTS |
|
168 * - |
|
169 * DESCRIPTION |
|
170 * |
|
171 * RETURN |
|
172 * - |
|
173 */ |
|
174 |
|
175 int32_t oalb_loadfile (const char *filename) { |
|
176 int i; |
|
177 |
|
178 if (oalbReady == 0) { |
|
179 errno = EPERM; |
|
180 err_ret("(%s) WARN - OpenAL not initialized", prog); |
|
181 return -1; |
|
182 } |
|
183 |
|
184 if(iNumSounds == MAX_SOUNDS) { |
|
185 err_msg("(%s) WARN - Maximum number of sound samples reached", prog); |
|
186 return -3; |
|
187 } |
|
188 |
|
189 |
|
190 for(i = 0; i < iNumSounds; i++) |
|
191 if(strcmp(aSounds[i].Filename, filename) == 0) |
|
192 return i; |
|
193 |
|
194 if(SSound_load(&aSounds[iNumSounds], filename)) |
|
195 return iNumSounds++; |
|
196 else |
|
197 return -2; |
|
198 |
|
199 } |
|
200 |
|
201 /* |
|
202 ALboolean openal_toggleloop (uint32_t index){ |
|
203 /*Set or unset looping mode |
|
204 ALint loop; |
|
205 |
|
206 if (oalbReady == AL_FALSE) { |
|
207 errno = EPERM; |
|
208 err_ret("(%s) WARN - OpenAL not initialized", prog); |
|
209 return AL_FALSE; |
|
210 } |
|
211 |
|
212 if (index >= globalsize) { |
|
213 errno = EINVAL; |
|
214 err_ret("(%s) ERROR - Index out of bounds (got %d, max %d)", prog, index, globalindex); |
|
215 return AL_FALSE; |
|
216 } |
|
217 |
|
218 alGetSourcei (Sources[index], AL_LOOPING, &loop); |
|
219 alSourcei (Sources[index], AL_LOOPING, !((uint8_t) loop) & 0x00000001); |
|
220 if (AlGetError("(%s) ERROR - Failed to get or set loop property") != AL_TRUE) |
|
221 return AL_FALSE; |
|
222 |
|
223 alGetError(); /* clear any AL errors beforehand |
|
224 |
|
225 return AL_TRUE; |
|
226 } |
|
227 */ |
|
228 |
|
229 void oalb_setvolume (const uint32_t iIndex, const char cPercentage) { |
|
230 if (oalbReady == 0) { |
|
231 errno = EPERM; |
|
232 err_ret("(%s) WARN - OpenAL not initialized", prog); |
|
233 return; |
|
234 } |
|
235 |
|
236 /*Set volume for sound number index*/ |
|
237 if(iIndex < 0 || iIndex >= iNumSounds) { |
|
238 errno = EINVAL; |
|
239 err_ret("(%s) ERROR - Index out of bounds (got %d, max %d)", prog, index, globalindex); |
|
240 return; |
|
241 } |
|
242 |
|
243 if(cPercentage > 100) |
|
244 SSound_volume(&aSounds[iIndex], 1.0f); |
|
245 else |
|
246 SSound_volume(&aSounds[iIndex], cPercentage / 100.0f); |
|
247 |
|
248 if (AlGetError2("(%s) ERROR - Failed to set volume for sound %d\n", iIndex) != AL_TRUE) |
|
249 return; |
|
250 |
|
251 alGetError(); /* clear any AL errors beforehand */ |
|
252 |
|
253 return; |
|
254 } |
|
255 |
|
256 |
|
257 void oalb_setglobalvolume (const char cPercentage) { |
|
258 if (oalbReady == 0) { |
|
259 errno = EPERM; |
|
260 err_ret("(%s) WARN - OpenAL not initialized", prog); |
|
261 return; |
|
262 } |
|
263 |
|
264 /*Set volume for all sounds*/ |
|
265 if(cPercentage > 100) |
|
266 alListenerf (AL_GAIN, 1.0f); |
|
267 else |
|
268 alListenerf (AL_GAIN, cPercentage / 100.0f); |
|
269 |
|
270 if (AlGetError("(%s) ERROR - Failed to set global volume") != AL_TRUE) |
|
271 return; |
|
272 |
|
273 alGetError(); /* clear any AL errors beforehand */ |
|
274 |
|
275 return; |
|
276 } |
|
277 |
|
278 /* |
|
279 ALboolean openal_togglemute () { |
|
280 /*Mute or unmute sound |
|
281 ALfloat mute; |
|
282 |
|
283 if (oalbReady == AL_FALSE) { |
|
284 errno = EPERM; |
|
285 err_ret("(%s) WARN - OpenAL not initialized", prog); |
|
286 return AL_FALSE; |
|
287 } |
|
288 |
|
289 alGetListenerf (AL_GAIN, &mute); |
|
290 if (mute > 0) |
|
291 mute = 0; |
|
292 else |
|
293 mute = 1.0; |
|
294 alListenerf (AL_GAIN, mute); |
|
295 if (AlGetError("(%s) ERROR - Failed to set mute property") != AL_TRUE) |
|
296 return AL_FALSE; |
|
297 |
|
298 alGetError(); /* clear any AL errors beforehand |
|
299 |
|
300 return AL_TRUE; |
|
301 } |
|
302 |
|
303 |
|
304 ALboolean openal_fade (uint32_t index, uint16_t quantity, ALboolean direction) { |
|
305 /*Fade in or out by calling a helper thread |
|
306 #ifndef _WIN32 |
|
307 pthread_t thread; |
|
308 #else |
|
309 HANDLE Thread; |
|
310 DWORD threadID; |
|
311 #endif |
|
312 fade_t *fade; |
|
313 |
|
314 if (oalbReady == AL_FALSE) { |
|
315 errno = EPERM; |
|
316 err_ret("(%s) WARN - OpenAL not initialized", prog); |
|
317 return AL_FALSE; |
|
318 } |
|
319 |
|
320 fade = (fade_t*) Malloc(sizeof(fade_t)); |
|
321 fade->index = index; |
|
322 fade->quantity = quantity; |
|
323 |
|
324 if (index >= globalsize) { |
|
325 errno = EINVAL; |
|
326 err_ret("(%s) ERROR - Index out of bounds (got %d, max %d)", prog, index, globalindex); |
|
327 return AL_FALSE; |
|
328 } |
|
329 |
|
330 switch (direction) { |
|
331 case FADE_IN: |
|
332 #ifndef _WIN32 |
|
333 pthread_create(&thread, NULL, helper_fadein, (void*) fade); |
|
334 #else |
|
335 Thread = _beginthread(&helper_fadein, 0, (void*) fade); |
|
336 #endif |
|
337 break; |
|
338 case FADE_OUT: |
|
339 #ifndef _WIN32 |
|
340 pthread_create(&thread, NULL, helper_fadeout, (void*) fade); |
|
341 #else |
|
342 Thread = _beginthread(&helper_fadeout, 0, (void*) fade); |
|
343 #endif |
|
344 break; |
|
345 default: |
|
346 errno = EINVAL; |
|
347 err_ret("(%s) ERROR - Unknown direction for fading", prog, index, globalindex); |
|
348 free(fade); |
|
349 return AL_FALSE; |
|
350 break; |
|
351 } |
|
352 |
|
353 #ifndef _WIN32 |
|
354 pthread_detach(thread); |
|
355 #endif |
|
356 |
|
357 alGetError(); /* clear any AL errors beforehand |
|
358 |
|
359 return AL_TRUE; |
|
360 } |
|
361 |
|
362 |
|
363 ALboolean openal_fadeout (uint32_t index, uint16_t quantity) { |
|
364 /*wrapper for fadeout |
|
365 return openal_fade(index, quantity, FADE_OUT); |
|
366 } |
|
367 |
|
368 |
|
369 ALboolean openal_fadein (uint32_t index, uint16_t quantity) { |
|
370 /*wrapper for fadein |
|
371 return openal_fade(index, quantity, FADE_IN); |
|
372 } |
|
373 |
|
374 |
|
375 ALboolean openal_setposition (uint32_t index, float x, float y, float z) { |
|
376 if (oalbReady == AL_FALSE) { |
|
377 errno = EPERM; |
|
378 err_ret("(%s) WARN - OpenAL not initialized", prog); |
|
379 return AL_FALSE; |
|
380 } |
|
381 |
|
382 if (index >= globalsize) { |
|
383 errno = EINVAL; |
|
384 err_ret("(%s) ERROR - Index out of bounds (got %d, max %d)", prog, index, globalindex); |
|
385 return AL_FALSE; |
|
386 } |
|
387 |
|
388 alSource3f(Sources[index], AL_POSITION, x, y, z); |
|
389 if (AlGetError2("(%s) ERROR - Failed to set position for sound %d)", index) != AL_TRUE) |
|
390 return AL_FALSE; |
|
391 |
|
392 return AL_TRUE; |
|
393 } |
|
394 |
|
395 */ |
|
396 |
|
397 void oalb_playsound (const uint32_t iIndex, const char bLoop) { |
|
398 if (oalbReady == AL_FALSE) { |
|
399 errno = EPERM; |
|
400 err_ret("(%s) WARN - OpenAL not initialized", prog); |
|
401 return; |
|
402 } |
|
403 |
|
404 /*Play sound number index*/ |
|
405 if(iIndex < 0 || iIndex >= iNumSounds) { |
|
406 errno = EINVAL; |
|
407 err_ret("(%s) ERROR - Index (%d) out of bounds", prog, iIndex); |
|
408 return; |
|
409 } |
|
410 SSound_play(&aSounds[iIndex], bLoop); |
|
411 |
|
412 |
|
413 |
|
414 alGetError(); /* clear any AL errors beforehand */ |
|
415 |
|
416 return; |
|
417 } |
|
418 |
|
419 |
|
420 void oalb_pausesound (const uint32_t iIndex) { |
|
421 if (oalbReady == AL_FALSE) { |
|
422 errno = EPERM; |
|
423 err_ret("(%s) WARN - OpenAL not initialized", prog); |
|
424 return; |
|
425 } |
|
426 |
|
427 /*Pause sound number index*/ |
|
428 if(iIndex < 0 || iIndex >= iNumSounds) { |
|
429 errno = EINVAL; |
|
430 err_ret("(%s) ERROR - Index (%d) out of bounds", prog, iIndex); |
|
431 return; |
|
432 } |
|
433 SSound_pause(&aSounds[iIndex]); |
|
434 |
|
435 if (AlGetError2("(%s) ERROR - Failed to pause sound %d)", iIndex) != AL_TRUE) |
|
436 return; |
|
437 |
|
438 return; |
|
439 } |
|
440 |
|
441 |
|
442 void oalb_stopsound (const uint32_t iIndex) { |
|
443 if (oalbReady == AL_FALSE) { |
|
444 errno = EPERM; |
|
445 err_ret("(%s) WARN - OpenAL not initialized", prog); |
|
446 return; |
|
447 } |
|
448 |
|
449 /*Stop sound number index*/ |
|
450 if(iIndex < 0 || iIndex >= iNumSounds) { |
|
451 errno = EINVAL; |
|
452 err_ret("(%s) ERROR - Index (%d) out of bounds", prog, iIndex); |
|
453 return; |
|
454 } |
|
455 SSound_stop(&aSounds[iIndex]); |
|
456 |
|
457 if (AlGetError2("(%s) ERROR - Failed to stop sound %d)", iIndex) != AL_TRUE) |
|
458 return; |
|
459 |
|
460 alGetError(); /* clear any AL errors beforehand */ |
|
461 |
|
462 return; |
|
463 } |
|
464 |
|
465 |
|
466 /*SSOUND STUFF HERE*/ |
|
467 |
|
468 char SSound_load (SSound_t* pSound, const char* cFilename) { |
|
469 uint32_t magic; |
|
470 ALenum format; |
|
471 ALsizei bitsize, freq; |
|
472 char *data; |
|
473 FILE* fp; |
|
474 |
|
475 snprintf(pSound->Filename, 256, "%s", cFilename); |
|
476 pSound->source = -1; |
|
477 alGenBuffers(1, &pSound->Buffer); |
|
478 |
|
479 if(alGetError() != AL_NO_ERROR) { |
|
480 fprintf(stderr, "CSound: Couldn't create buffer.\n"); |
|
481 return 0; |
|
482 } |
|
483 |
|
484 fp = fopen(pSound->Filename, "rb"); |
|
485 |
|
486 if(!fp) { |
|
487 fprintf(stderr, "CSound: Couldn't open file for reading.\n"); |
|
488 return 0; |
|
489 } |
|
490 |
|
491 if(fread(&magic, sizeof(uint32_t), 1, fp) < 1) |
|
492 { |
|
493 fclose(fp); |
|
494 fprintf(stderr, "CSound: Couldn't read file header.\n"); |
|
495 return 0; |
|
496 } |
|
497 fclose(fp); |
|
498 |
|
499 switch (ENDIAN_BIG_32(magic)) { |
|
500 case OGG_FILE_FORMAT: |
|
501 load_oggvorbis (pSound->Filename, &format, &data, &bitsize, &freq); |
|
502 break; |
|
503 case WAV_FILE_FORMAT: |
|
504 load_wavpcm (pSound->Filename, &format, &data, &bitsize, &freq); |
|
505 break; |
|
506 default: |
|
507 errno = EINVAL; |
|
508 err_ret ("(%s) ERROR - File format (%08X) not supported", prog, ENDIAN_BIG_32(magic)); |
|
509 return 0; |
|
510 break; |
|
511 } |
|
512 |
|
513 alBufferData(pSound->Buffer, format, data, bitsize, freq); |
|
514 if(alGetError() != AL_NO_ERROR) |
|
515 { |
|
516 fprintf(stderr, "CSound: Couldn't write buffer data.\n"); |
|
517 return 0; |
|
518 } |
|
519 free(data); |
|
520 |
|
521 return 1; |
|
522 } |
|
523 |
|
524 void SSound_close(SSound_t* pSound) |
|
525 { |
|
526 SSound_stop(pSound); |
|
527 alDeleteBuffers(1, &pSound->Buffer); |
|
528 } |
|
529 |
|
530 void SSound_play(SSound_t* pSound, const char bLoop) { |
|
531 int i; |
|
532 |
|
533 if(pSound->source == -1) // need a new source |
|
534 { |
|
535 int i; |
|
536 for(i = 0; i < MAX_SOURCES; i++) |
|
537 { |
|
538 ALint state; |
|
539 alGetSourcei(sources[i], AL_SOURCE_STATE, &state); |
|
540 if(state != AL_PLAYING && state != AL_PAUSED) |
|
541 { |
|
542 #ifdef DEBUG |
|
543 printf("using source %d (state 0x%x) for buffer.\n", i, state); |
|
544 #endif |
|
545 alSourceStop(sources[pSound->source]); |
|
546 alGetError(); |
|
547 break; |
|
548 } |
88 } |
549 } |
89 |
550 if(i == MAX_SOURCES) // no available source found; skip |
90 if (usehardware == AL_TRUE) |
551 { |
91 device = alcOpenDevice(NULL); |
552 #ifdef DEBUG |
92 else |
553 printf("no source to play buffer %d!\n", i); |
93 device = alcOpenDevice("Generic Software"); |
554 #endif |
94 |
555 return; |
95 if (device == NULL) { |
|
96 errno = ENODEV; |
|
97 err_ret("(%s) WARN - Failed to open sound device", prog); |
|
98 return AL_FALSE; |
|
99 } |
556 } |
100 err_msg("(%s) INFO - Output device: %s", prog, alcGetString(device, ALC_DEVICE_SPECIFIER)); |
557 pSound->source = i; |
101 |
558 } |
102 context = alcCreateContext(device, NULL); |
559 else // reuse already playing source |
103 alcMakeContextCurrent(context); |
560 { |
104 alcProcessContext(context); |
561 alSourceStop(sources[pSound->source]); |
105 |
562 } |
106 if (AlGetError("(%s) WARN - Failed to create a new contex") != AL_TRUE) |
563 alSourcei (sources[pSound->source], AL_BUFFER, pSound->Buffer); |
107 return AL_FALSE; |
564 alSourcef (sources[pSound->source], AL_PITCH, 1.0f); |
108 |
565 alSourcef (sources[pSound->source], AL_GAIN, 1.0f); |
109 /*allocate memory space for buffers and sources*/ |
566 alSourcefv(sources[pSound->source], AL_POSITION, NV ); |
110 if (memorysize == 0) |
567 alSourcefv(sources[pSound->source], AL_VELOCITY, NV ); |
111 globalsize = 50; |
568 alSourcei (sources[pSound->source], AL_LOOPING, bLoop ); |
112 else |
569 alSourcePlay(sources[pSound->source]); |
113 globalsize = memorysize; |
570 |
114 increment = globalsize; |
571 if((i = alGetError()) != AL_NO_ERROR) |
115 |
572 { |
116 Buffers = (ALuint*) Malloc(sizeof(ALuint)*globalsize); |
573 fprintf(stderr, "CSound: SourcePlay error 0x%4x in source %d\n", i, pSound->source); |
117 Sources = (ALuint*) Malloc(sizeof(ALuint)*globalsize); |
574 } |
118 |
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119 /*set the listener gain, position (on xyz axes), velocity (one value for each axe) and orientation*/ |
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120 alListenerf (AL_GAIN, 1.0f ); |
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121 alListenerfv(AL_POSITION, ListenerPos); |
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122 alListenerfv(AL_VELOCITY, ListenerVel); |
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123 alListenerfv(AL_ORIENTATION, ListenerOri); |
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124 |
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125 if (AlGetError("(%s) WARN - Failed to set Listener properties") != AL_TRUE) |
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126 return AL_FALSE; |
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127 |
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128 openalReady = AL_TRUE; |
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129 |
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130 alGetError(); /* clear any AL errors beforehand */ |
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131 return AL_TRUE; |
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132 } |
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133 |
|
134 |
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135 ALboolean helper_realloc (void) { |
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136 /*expands allocated memory when loading more sound files than expected*/ |
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137 int oldsize = globalsize; |
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138 globalsize += increment; |
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139 |
|
140 #ifdef DEBUG |
575 #ifdef DEBUG |
141 err_msg("(%s) INFO - Realloc in process from %d to %d\n", prog, oldsize, globalsize); |
576 fprintf(stderr, "play %s%s [%d]\n", pSound->Filename, bLoop ? " forever" : " once", pSound->source); |
142 #endif |
577 #endif |
143 |
578 } |
144 Buffers = (ALuint*) Realloc(Buffers, sizeof(ALuint)*globalsize); |
579 |
145 Sources = (ALuint*) Realloc(Sources, sizeof(ALuint)*globalsize); |
580 void SSound_pause(const SSound_t* pSound) { |
146 |
581 if(pSound->source == -1) // not playing |
147 return AL_TRUE; |
582 return; |
148 } |
583 alSourcePause(sources[pSound->source]); |
149 |
584 #ifdef DEBUG |
150 |
585 fprintf(stderr, "pause %s\n", pSound->Filename); |
151 ALint openal_loadfile (const char *filename){ |
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152 /*Open a file, load into memory and allocate the Source buffer for playing*/ |
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153 ALfloat SourcePos[] = { 0.0, 0.0, 0.0 }; /*Position of the source sound*/ |
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154 ALfloat SourceVel[] = { 0.0, 0.0, 0.0 }; /*Velocity of the source sound*/ |
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155 ALenum format; |
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156 ALsizei bitsize, freq; |
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157 char *data; |
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158 uint32_t fileformat; |
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159 ALenum error; |
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160 FILE *fp; |
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161 |
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162 if (openalReady == AL_FALSE) { |
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163 errno = EPERM; |
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164 err_ret("(%s) WARN - OpenAL not initialized", prog); |
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165 return AL_FALSE; |
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166 } |
|
167 |
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168 /*when the buffers are all used, we can expand memory to accept new files*/ |
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169 if (globalindex == globalsize) |
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170 helper_realloc(); |
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171 |
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172 /*detect the file format, as written in the first 4 bytes of the header*/ |
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173 fp = Fopen (filename, "rb"); |
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174 |
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175 if (fp == NULL) |
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176 return -1; |
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177 |
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178 error = fread (&fileformat, sizeof(uint32_t), 1, fp); |
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179 fclose (fp); |
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180 |
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181 if (error < 0) { |
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182 errno = EIO; |
|
183 err_ret("(%s) ERROR - File %s is too short", prog, filename); |
|
184 return -2; |
|
185 } |
|
186 |
|
187 /*prepare the buffer to receive data*/ |
|
188 alGenBuffers(1, &Buffers[globalindex]); |
|
189 |
|
190 if (AlGetError("(%s) ERROR - Failed to allocate memory for buffers") != AL_TRUE) |
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191 return -3; |
|
192 |
|
193 /*prepare the source to emit sound*/ |
|
194 alGenSources(1, &Sources[globalindex]); |
|
195 |
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196 if (AlGetError("(%s) ERROR - Failed to allocate memory for sources") != AL_TRUE) |
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197 return -4; |
|
198 |
|
199 |
|
200 switch (ENDIAN_BIG_32(fileformat)) { |
|
201 case OGG_FILE_FORMAT: |
|
202 error = load_oggvorbis (filename, &format, &data, &bitsize, &freq); |
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203 break; |
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204 case WAV_FILE_FORMAT: |
|
205 error = load_wavpcm (filename, &format, &data, &bitsize, &freq); |
|
206 break; |
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207 default: |
|
208 errno = EINVAL; |
|
209 err_ret ("(%s) ERROR - File format (%08X) not supported", prog, ENDIAN_BIG_32(fileformat)); |
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210 return -5; |
|
211 break; |
|
212 } |
|
213 |
|
214 |
|
215 /*copy pcm data in one buffer*/ |
|
216 alBufferData(Buffers[globalindex], format, data, bitsize, freq); |
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217 free(data); /*deallocate data to save memory*/ |
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218 |
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219 if (AlGetError("(%s) ERROR - Failed to write data to buffers") != AL_TRUE) |
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220 return -6; |
|
221 |
|
222 /*set source properties that it will use when it's in playback*/ |
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223 alSourcei (Sources[globalindex], AL_BUFFER, Buffers[globalindex] ); |
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224 alSourcef (Sources[globalindex], AL_PITCH, 1.0f ); |
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225 alSourcef (Sources[globalindex], AL_GAIN, 1.0f ); |
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226 alSourcefv(Sources[globalindex], AL_POSITION, SourcePos ); |
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227 alSourcefv(Sources[globalindex], AL_VELOCITY, SourceVel ); |
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228 alSourcei (Sources[globalindex], AL_LOOPING, 0 ); |
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229 |
|
230 if (AlGetError("(%s) ERROR - Failed to set Source properties") != AL_TRUE) |
|
231 return -7; |
|
232 |
|
233 alGetError(); /* clear any AL errors beforehand */ |
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234 |
|
235 /*returns the index of the source you just loaded, increments it and exits*/ |
|
236 return globalindex++; |
|
237 } |
|
238 |
|
239 |
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240 ALboolean openal_toggleloop (uint32_t index){ |
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241 /*Set or unset looping mode*/ |
|
242 ALint loop; |
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243 |
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244 if (openalReady == AL_FALSE) { |
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245 errno = EPERM; |
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246 err_ret("(%s) WARN - OpenAL not initialized", prog); |
|
247 return AL_FALSE; |
|
248 } |
|
249 |
|
250 if (index >= globalsize) { |
|
251 errno = EINVAL; |
|
252 err_ret("(%s) ERROR - Index out of bounds (got %d, max %d)", prog, index, globalindex); |
|
253 return AL_FALSE; |
|
254 } |
|
255 |
|
256 alGetSourcei (Sources[index], AL_LOOPING, &loop); |
|
257 alSourcei (Sources[index], AL_LOOPING, !((uint8_t) loop) & 0x00000001); |
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258 if (AlGetError("(%s) ERROR - Failed to get or set loop property") != AL_TRUE) |
|
259 return AL_FALSE; |
|
260 |
|
261 alGetError(); /* clear any AL errors beforehand */ |
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262 |
|
263 return AL_TRUE; |
|
264 } |
|
265 |
|
266 |
|
267 ALboolean openal_setvolume (uint32_t index, uint8_t percentage) { |
|
268 if (openalReady == AL_FALSE) { |
|
269 errno = EPERM; |
|
270 err_ret("(%s) WARN - OpenAL not initialized", prog); |
|
271 return AL_FALSE; |
|
272 } |
|
273 |
|
274 /*Set volume for sound number index*/ |
|
275 if (index >= globalsize) { |
|
276 errno = EINVAL; |
|
277 err_ret("(%s) ERROR - Index out of bounds (got %d, max %d)", prog, index, globalindex); |
|
278 return AL_FALSE; |
|
279 } |
|
280 |
|
281 if (percentage > 100) |
|
282 percentage = 100; |
|
283 alSourcef (Sources[index], AL_GAIN, (float) percentage/100.0f); |
|
284 if (AlGetError2("(%s) ERROR - Failed to set volume for sound %d\n", index) != AL_TRUE) |
|
285 return AL_FALSE; |
|
286 |
|
287 alGetError(); /* clear any AL errors beforehand */ |
|
288 |
|
289 return AL_TRUE; |
|
290 } |
|
291 |
|
292 |
|
293 ALboolean openal_setglobalvolume (uint8_t percentage) { |
|
294 if (openalReady == AL_FALSE) { |
|
295 errno = EPERM; |
|
296 err_ret("(%s) WARN - OpenAL not initialized", prog); |
|
297 return AL_FALSE; |
|
298 } |
|
299 |
|
300 /*Set volume for all sounds*/ |
|
301 if (percentage > 100) |
|
302 percentage = 100; |
|
303 alListenerf (AL_GAIN, (float) percentage/100.0f); |
|
304 if (AlGetError("(%s) ERROR - Failed to set global volume") != AL_TRUE) |
|
305 return AL_FALSE; |
|
306 |
|
307 alGetError(); /* clear any AL errors beforehand */ |
|
308 |
|
309 return AL_TRUE; |
|
310 } |
|
311 |
|
312 |
|
313 ALboolean openal_togglemute () { |
|
314 /*Mute or unmute sound*/ |
|
315 ALfloat mute; |
|
316 |
|
317 if (openalReady == AL_FALSE) { |
|
318 errno = EPERM; |
|
319 err_ret("(%s) WARN - OpenAL not initialized", prog); |
|
320 return AL_FALSE; |
|
321 } |
|
322 |
|
323 alGetListenerf (AL_GAIN, &mute); |
|
324 if (mute > 0) |
|
325 mute = 0; |
|
326 else |
|
327 mute = 1.0; |
|
328 alListenerf (AL_GAIN, mute); |
|
329 if (AlGetError("(%s) ERROR - Failed to set mute property") != AL_TRUE) |
|
330 return AL_FALSE; |
|
331 |
|
332 alGetError(); /* clear any AL errors beforehand */ |
|
333 |
|
334 return AL_TRUE; |
|
335 } |
|
336 |
|
337 |
|
338 ALboolean openal_fade (uint32_t index, uint16_t quantity, ALboolean direction) { |
|
339 /*Fade in or out by calling a helper thread*/ |
|
340 #ifndef _WIN32 |
|
341 pthread_t thread; |
|
342 #else |
|
343 HANDLE Thread; |
|
344 DWORD threadID; |
|
345 #endif |
586 #endif |
346 fade_t *fade; |
587 } |
347 |
588 |
348 if (openalReady == AL_FALSE) { |
589 void SSound_continue(const SSound_t* pSound) { |
349 errno = EPERM; |
590 if(pSound->source == -1) // not playing |
350 err_ret("(%s) WARN - OpenAL not initialized", prog); |
591 return; |
351 return AL_FALSE; |
592 alSourcePlay(sources[pSound->source]); |
352 } |
593 #ifdef DEBUG |
353 |
594 fprintf(stderr, "pause %s\n", pSound->Filename); |
354 fade = (fade_t*) Malloc(sizeof(fade_t)); |
|
355 fade->index = index; |
|
356 fade->quantity = quantity; |
|
357 |
|
358 if (index >= globalsize) { |
|
359 errno = EINVAL; |
|
360 err_ret("(%s) ERROR - Index out of bounds (got %d, max %d)", prog, index, globalindex); |
|
361 return AL_FALSE; |
|
362 } |
|
363 |
|
364 switch (direction) { |
|
365 case FADE_IN: |
|
366 #ifndef _WIN32 |
|
367 pthread_create(&thread, NULL, helper_fadein, (void*) fade); |
|
368 #else |
|
369 Thread = _beginthread(&helper_fadein, 0, (void*) fade); |
|
370 #endif |
595 #endif |
371 break; |
596 } |
372 case FADE_OUT: |
597 |
373 #ifndef _WIN32 |
598 void SSound_stop(SSound_t* pSound) { |
374 pthread_create(&thread, NULL, helper_fadeout, (void*) fade); |
599 if(pSound->source == -1) // not playing |
375 #else |
600 return; |
376 Thread = _beginthread(&helper_fadeout, 0, (void*) fade); |
601 alSourceStop(sources[pSound->source]); |
377 #endif |
602 pSound->source = -1; |
378 break; |
603 #ifdef DEBUG |
379 default: |
604 fprintf(stderr, "stop %s\n", pSound->Filename); |
380 errno = EINVAL; |
|
381 err_ret("(%s) ERROR - Unknown direction for fading", prog, index, globalindex); |
|
382 free(fade); |
|
383 return AL_FALSE; |
|
384 break; |
|
385 } |
|
386 |
|
387 #ifndef _WIN32 |
|
388 pthread_detach(thread); |
|
389 #endif |
605 #endif |
390 |
606 } |
391 alGetError(); /* clear any AL errors beforehand */ |
607 |
392 |
608 void SSound_volume(const SSound_t* pSound, const float fPercentage) { |
393 return AL_TRUE; |
609 if(pSound->source == -1) // not playing |
394 } |
610 return; |
395 |
611 alSourcef(sources[pSound->source], AL_GAIN, fPercentage); |
396 |
612 } |
397 ALboolean openal_fadeout (uint32_t index, uint16_t quantity) { |
613 |
398 /*wrapper for fadeout*/ |
|
399 return openal_fade(index, quantity, FADE_OUT); |
|
400 } |
|
401 |
|
402 |
|
403 ALboolean openal_fadein (uint32_t index, uint16_t quantity) { |
|
404 /*wrapper for fadein*/ |
|
405 return openal_fade(index, quantity, FADE_IN); |
|
406 } |
|
407 |
|
408 |
|
409 ALboolean openal_setposition (uint32_t index, float x, float y, float z) { |
|
410 if (openalReady == AL_FALSE) { |
|
411 errno = EPERM; |
|
412 err_ret("(%s) WARN - OpenAL not initialized", prog); |
|
413 return AL_FALSE; |
|
414 } |
|
415 |
|
416 if (index >= globalsize) { |
|
417 errno = EINVAL; |
|
418 err_ret("(%s) ERROR - Index out of bounds (got %d, max %d)", prog, index, globalindex); |
|
419 return AL_FALSE; |
|
420 } |
|
421 |
|
422 alSource3f(Sources[index], AL_POSITION, x, y, z); |
|
423 if (AlGetError2("(%s) ERROR - Failed to set position for sound %d)", index) != AL_TRUE) |
|
424 return AL_FALSE; |
|
425 |
|
426 return AL_TRUE; |
|
427 } |
|
428 |
|
429 |
|
430 ALboolean openal_playsound (uint32_t index){ |
|
431 if (openalReady == AL_FALSE) { |
|
432 errno = EPERM; |
|
433 err_ret("(%s) WARN - OpenAL not initialized", prog); |
|
434 return AL_FALSE; |
|
435 } |
|
436 |
|
437 /*Play sound number index*/ |
|
438 if (index >= globalsize) { |
|
439 errno = EINVAL; |
|
440 err_ret("(%s) ERROR - Index out of bounds (got %d, max %d)", prog, index, globalindex); |
|
441 return AL_FALSE; |
|
442 } |
|
443 alSourcePlay(Sources[index]); |
|
444 if (AlGetError2("(%s) ERROR - Failed to play sound %d)", index) != AL_TRUE) |
|
445 return AL_FALSE; |
|
446 |
|
447 alGetError(); /* clear any AL errors beforehand */ |
|
448 |
|
449 return AL_TRUE; |
|
450 } |
|
451 |
|
452 |
|
453 ALboolean openal_pausesound(uint32_t index){ |
|
454 if (openalReady == AL_FALSE) { |
|
455 errno = EPERM; |
|
456 err_ret("(%s) WARN - OpenAL not initialized", prog); |
|
457 return AL_FALSE; |
|
458 } |
|
459 |
|
460 /*Pause sound number index*/ |
|
461 if (index >= globalsize) { |
|
462 errno = EINVAL; |
|
463 err_ret("(%s) ERROR - Index out of bounds (got %d, max %d)", prog, index, globalindex); |
|
464 return AL_FALSE; |
|
465 } |
|
466 alSourcePause(Sources[index]); |
|
467 if (AlGetError2("(%s) ERROR - Failed to pause sound %d)", index) != AL_TRUE) |
|
468 return AL_FALSE; |
|
469 |
|
470 return AL_TRUE; |
|
471 } |
|
472 |
|
473 |
|
474 ALboolean openal_stopsound(uint32_t index){ |
|
475 if (openalReady == AL_FALSE) { |
|
476 errno = EPERM; |
|
477 err_ret("(%s) WARN - OpenAL not initialized", prog); |
|
478 return AL_FALSE; |
|
479 } |
|
480 |
|
481 /*Stop sound number index*/ |
|
482 if (index >= globalsize) { |
|
483 errno = EINVAL; |
|
484 err_ret("(%s) ERROR - Index out of bounds (got %d, max %d)", prog, index, globalindex); |
|
485 return AL_FALSE; |
|
486 } |
|
487 alSourceStop(Sources[index]); |
|
488 if (AlGetError2("(%s) ERROR - Failed to stop sound %d)", index) != AL_TRUE) |
|
489 return AL_FALSE; |
|
490 |
|
491 alGetError(); /* clear any AL errors beforehand */ |
|
492 |
|
493 return AL_TRUE; |
|
494 } |
|
495 |
|
496 #ifdef __CPLUSPLUS |
|
497 } |
|
498 #endif |
|