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comparison src/cdrom/macosx/AudioFilePlayer.c @ 1487:dc6b59e925a2

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Cleaning up warnings on MacOS X
author Sam Lantinga <slouken@libsdl.org>
date Thu, 09 Mar 2006 06:33:21 +0000
parents d910939febfa
children 14717b52abc0
comparison
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1486:9d77fc9d0ace 1487:dc6b59e925a2
22 This file based on Apple sample code. We haven't changed the file name, 22 This file based on Apple sample code. We haven't changed the file name,
23 so if you want to see the original search for it on apple.com/developer 23 so if you want to see the original search for it on apple.com/developer
24 */ 24 */
25 #include "SDL_config.h" 25 #include "SDL_config.h"
26 26
27 //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 27 /*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
28 // AudioFilePlayer.cpp 28 AudioFilePlayer.cpp
29 // 29 */
30 #include "AudioFilePlayer.h" 30 #include "AudioFilePlayer.h"
31 31
32 /* 32 /*
33 void ThrowResult (OSStatus result, const char* str) 33 void ThrowResult (OSStatus result, const char* str)
34 { 34 {
59 #endif 59 #endif
60 60
61 61
62 static int AudioFilePlayer_SetDestination (AudioFilePlayer *afp, AudioUnit *inDestUnit) 62 static int AudioFilePlayer_SetDestination (AudioFilePlayer *afp, AudioUnit *inDestUnit)
63 { 63 {
64 //if (afp->mConnected) throw static_cast<OSStatus>(-1); //can't set dest if already engaged 64 /*if (afp->mConnected) throw static_cast<OSStatus>(-1);*/ /* can't set dest if already engaged */
65 if (afp->mConnected) 65 if (afp->mConnected)
66 return 0 ; 66 return 0 ;
67 67
68 SDL_memcpy(&afp->mPlayUnit, inDestUnit, sizeof (afp->mPlayUnit)); 68 SDL_memcpy(&afp->mPlayUnit, inDestUnit, sizeof (afp->mPlayUnit));
69 69
70 OSStatus result = noErr; 70 OSStatus result = noErr;
71 71
72 72
73 //we can "down" cast a component instance to a component 73 /* we can "down" cast a component instance to a component */
74 ComponentDescription desc; 74 ComponentDescription desc;
75 result = GetComponentInfo ((Component)*inDestUnit, &desc, 0, 0, 0); 75 result = GetComponentInfo ((Component)*inDestUnit, &desc, 0, 0, 0);
76 if (result) return 0; //THROW_RESULT("GetComponentInfo") 76 if (result) return 0; /*THROW_RESULT("GetComponentInfo")*/
77 77
78 // we're going to use this to know which convert routine to call 78 /* we're going to use this to know which convert routine to call
79 // a v1 audio unit will have a type of 'aunt' 79 a v1 audio unit will have a type of 'aunt'
80 // a v2 audio unit will have one of several different types. 80 a v2 audio unit will have one of several different types. */
81 if (desc.componentType != kAudioUnitComponentType) { 81 if (desc.componentType != kAudioUnitComponentType) {
82 result = badComponentInstance; 82 result = badComponentInstance;
83 //THROW_RESULT("BAD COMPONENT") 83 /*THROW_RESULT("BAD COMPONENT")*/
84 if (result) return 0; 84 if (result) return 0;
85 } 85 }
86 86
87 /* Set the input format of the audio unit. */ 87 /* Set the input format of the audio unit. */
88 result = AudioUnitSetProperty (*inDestUnit, 88 result = AudioUnitSetProperty (*inDestUnit,
89 kAudioUnitProperty_StreamFormat, 89 kAudioUnitProperty_StreamFormat,
90 kAudioUnitScope_Input, 90 kAudioUnitScope_Input,
91 0, 91 0,
92 &afp->mFileDescription, 92 &afp->mFileDescription,
93 sizeof (afp->mFileDescription)); 93 sizeof (afp->mFileDescription));
94 //THROW_RESULT("AudioUnitSetProperty") 94 /*THROW_RESULT("AudioUnitSetProperty")*/
95 if (result) return 0; 95 if (result) return 0;
96 return 1; 96 return 1;
97 } 97 }
98 98
99 static void AudioFilePlayer_SetNotifier(AudioFilePlayer *afp, AudioFilePlayNotifier inNotifier, void *inRefCon) 99 static void AudioFilePlayer_SetNotifier(AudioFilePlayer *afp, AudioFilePlayNotifier inNotifier, void *inRefCon)
168 if (!afp->mConnected) 168 if (!afp->mConnected)
169 { 169 {
170 if (!afp->mAudioFileManager->DoConnect(afp->mAudioFileManager)) 170 if (!afp->mAudioFileManager->DoConnect(afp->mAudioFileManager))
171 return 0; 171 return 0;
172 172
173 // set the render callback for the file data to be supplied to the sound converter AU 173 /* set the render callback for the file data to be supplied to the sound converter AU */
174 afp->mInputCallback.inputProc = afp->mAudioFileManager->FileInputProc; 174 afp->mInputCallback.inputProc = afp->mAudioFileManager->FileInputProc;
175 afp->mInputCallback.inputProcRefCon = afp->mAudioFileManager; 175 afp->mInputCallback.inputProcRefCon = afp->mAudioFileManager;
176 176
177 OSStatus result = AudioUnitSetProperty (afp->mPlayUnit, 177 OSStatus result = AudioUnitSetProperty (afp->mPlayUnit,
178 kAudioUnitProperty_SetInputCallback, 178 kAudioUnitProperty_SetInputCallback,
179 kAudioUnitScope_Input, 179 kAudioUnitScope_Input,
180 0, 180 0,
181 &afp->mInputCallback, 181 &afp->mInputCallback,
182 sizeof(afp->mInputCallback)); 182 sizeof(afp->mInputCallback));
183 if (result) return 0; //THROW_RESULT("AudioUnitSetProperty") 183 if (result) return 0; /*THROW_RESULT("AudioUnitSetProperty")*/
184 afp->mConnected = 1; 184 afp->mConnected = 1;
185 } 185 }
186 186
187 return 1; 187 return 1;
188 } 188 }
189 189
190 // warning noted, now please go away ;-) 190 /* warning noted, now please go away ;-) */
191 // #warning This should redirect the calling of notification code to some other thread 191 /* #warning This should redirect the calling of notification code to some other thread */
192 static void AudioFilePlayer_DoNotification (AudioFilePlayer *afp, OSStatus inStatus) 192 static void AudioFilePlayer_DoNotification (AudioFilePlayer *afp, OSStatus inStatus)
193 { 193 {
194 if (afp->mNotifier) { 194 if (afp->mNotifier) {
195 (*afp->mNotifier) (afp->mRefCon, inStatus); 195 (*afp->mNotifier) (afp->mRefCon, inStatus);
196 } else { 196 } else {
241 OSErr result; 241 OSErr result;
242 HFSUniStr255 dfName; 242 HFSUniStr255 dfName;
243 ByteCount actual; 243 ByteCount actual;
244 SInt64 offset; 244 SInt64 offset;
245 245
246 // Open the data fork of the input file 246 /* Open the data fork of the input file */
247 result = FSGetDataForkName(&dfName); 247 result = FSGetDataForkName(&dfName);
248 if (result) return 0; //THROW_RESULT("AudioFilePlayer::OpenFile(): FSGetDataForkName") 248 if (result) return 0; /*THROW_RESULT("AudioFilePlayer::OpenFile(): FSGetDataForkName")*/
249 249
250 result = FSOpenFork(inRef, dfName.length, dfName.unicode, fsRdPerm, &afp->mForkRefNum); 250 result = FSOpenFork(inRef, dfName.length, dfName.unicode, fsRdPerm, &afp->mForkRefNum);
251 if (result) return 0; //THROW_RESULT("AudioFilePlayer::OpenFile(): FSOpenFork") 251 if (result) return 0; /*THROW_RESULT("AudioFilePlayer::OpenFile(): FSOpenFork")*/
252 252
253 // Read the file header, and check if it's indeed an AIFC file 253 /* Read the file header, and check if it's indeed an AIFC file */
254 result = FSReadFork(afp->mForkRefNum, fsAtMark, 0, sizeof(chunkHeader), &chunkHeader, &actual); 254 result = FSReadFork(afp->mForkRefNum, fsAtMark, 0, sizeof(chunkHeader), &chunkHeader, &actual);
255 if (result) return 0; //THROW_RESULT("AudioFilePlayer::OpenFile(): FSReadFork") 255 if (result) return 0; /*THROW_RESULT("AudioFilePlayer::OpenFile(): FSReadFork")*/
256 256
257 if (chunkHeader.ckID != 'FORM') { 257 if (chunkHeader.ckID != 'FORM') {
258 result = -1; 258 result = -1;
259 if (result) return 0; //THROW_RESULT("AudioFilePlayer::OpenFile(): chunk id is not 'FORM'"); 259 if (result) return 0; /*THROW_RESULT("AudioFilePlayer::OpenFile(): chunk id is not 'FORM'");*/
260 } 260 }
261 261
262 if (chunkHeader.formType != 'AIFC') { 262 if (chunkHeader.formType != 'AIFC') {
263 result = -1; 263 result = -1;
264 if (result) return 0; //THROW_RESULT("AudioFilePlayer::OpenFile(): file format is not 'AIFC'"); 264 if (result) return 0; /*THROW_RESULT("AudioFilePlayer::OpenFile(): file format is not 'AIFC'");*/
265 } 265 }
266 266
267 // Search for the SSND chunk. We ignore all compression etc. information 267 /* Search for the SSND chunk. We ignore all compression etc. information
268 // in other chunks. Of course that is kind of evil, but for now we are lazy 268 in other chunks. Of course that is kind of evil, but for now we are lazy
269 // and rely on the cdfs to always give us the same fixed format. 269 and rely on the cdfs to always give us the same fixed format.
270 // TODO: Parse the COMM chunk we currently skip to fill in mFileDescription. 270 TODO: Parse the COMM chunk we currently skip to fill in mFileDescription.
271 */
271 offset = 0; 272 offset = 0;
272 do { 273 do {
273 result = FSReadFork(afp->mForkRefNum, fsFromMark, offset, sizeof(chunk), &chunk, &actual); 274 result = FSReadFork(afp->mForkRefNum, fsFromMark, offset, sizeof(chunk), &chunk, &actual);
274 if (result) return 0; //THROW_RESULT("AudioFilePlayer::OpenFile(): FSReadFork") 275 if (result) return 0; /*THROW_RESULT("AudioFilePlayer::OpenFile(): FSReadFork")*/
275 276
276 // Skip the chunk data 277 /* Skip the chunk data */
277 offset = chunk.ckSize; 278 offset = chunk.ckSize;
278 } while (chunk.ckID != 'SSND'); 279 } while (chunk.ckID != 'SSND');
279 280
280 // Read the header of the SSND chunk. After this, we are positioned right 281 /* Read the header of the SSND chunk. After this, we are positioned right
281 // at the start of the audio data. 282 at the start of the audio data. */
282 result = FSReadFork(afp->mForkRefNum, fsAtMark, 0, sizeof(ssndData), &ssndData, &actual); 283 result = FSReadFork(afp->mForkRefNum, fsAtMark, 0, sizeof(ssndData), &ssndData, &actual);
283 if (result) return 0; //THROW_RESULT("AudioFilePlayer::OpenFile(): FSReadFork") 284 if (result) return 0; /*THROW_RESULT("AudioFilePlayer::OpenFile(): FSReadFork")*/
284 285
285 result = FSSetForkPosition(afp->mForkRefNum, fsFromMark, ssndData.offset); 286 result = FSSetForkPosition(afp->mForkRefNum, fsFromMark, ssndData.offset);
286 if (result) return 0; //THROW_RESULT("AudioFilePlayer::OpenFile(): FSSetForkPosition") 287 if (result) return 0; /*THROW_RESULT("AudioFilePlayer::OpenFile(): FSSetForkPosition")*/
287 288
288 // Data size 289 /* Data size */
289 *outFileDataSize = chunk.ckSize - ssndData.offset - 8; 290 *outFileDataSize = chunk.ckSize - ssndData.offset - 8;
290 291
291 // File format 292 /* File format */
292 afp->mFileDescription.mSampleRate = 44100; 293 afp->mFileDescription.mSampleRate = 44100;
293 afp->mFileDescription.mFormatID = kAudioFormatLinearPCM; 294 afp->mFileDescription.mFormatID = kAudioFormatLinearPCM;
294 afp->mFileDescription.mFormatFlags = kLinearPCMFormatFlagIsPacked | kLinearPCMFormatFlagIsSignedInteger; 295 afp->mFileDescription.mFormatFlags = kLinearPCMFormatFlagIsPacked | kLinearPCMFormatFlagIsSignedInteger;
295 afp->mFileDescription.mBytesPerPacket = 4; 296 afp->mFileDescription.mBytesPerPacket = 4;
296 afp->mFileDescription.mFramesPerPacket = 1; 297 afp->mFileDescription.mFramesPerPacket = 1;
329 { 330 {
330 SDL_free(afp); 331 SDL_free(afp);
331 return NULL; 332 return NULL;
332 } 333 }
333 334
334 // we want about 4 seconds worth of data for the buffer 335 /* we want about 4 seconds worth of data for the buffer */
335 int bytesPerSecond = (UInt32) (4 * afp->mFileDescription.mSampleRate * afp->mFileDescription.mBytesPerFrame); 336 int bytesPerSecond = (UInt32) (4 * afp->mFileDescription.mSampleRate * afp->mFileDescription.mBytesPerFrame);
336 337
337 #if DEBUG 338 #if DEBUG
338 printf("File format:\n"); 339 printf("File format:\n");
339 PrintStreamDesc (&afp->mFileDescription); 340 PrintStreamDesc (&afp->mFileDescription);