52 #include <dmksctrl.h> |
52 #include <dmksctrl.h> |
53 #include <dmusici.h> |
53 #include <dmusici.h> |
54 #include <dmusicc.h> |
54 #include <dmusicc.h> |
55 #include <dmusicf.h> |
55 #include <dmusicf.h> |
56 |
56 |
57 #define VARIANT int |
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58 |
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59 #define MSGBOX(output) DEBUG(misc, 0) ("DirectMusic driver: %s\n", output); //MessageBox(NULL, output, "dxmci",MB_OK); |
57 #define MSGBOX(output) DEBUG(misc, 0) ("DirectMusic driver: %s\n", output); //MessageBox(NULL, output, "dxmci",MB_OK); |
60 #define MULTI_TO_WIDE( x,y ) MultiByteToWideChar( CP_ACP,MB_PRECOMPOSED, y,-1,x,_MAX_PATH); |
58 |
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59 static void MultiToWide(WCHAR* to, const char* from) |
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60 { |
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61 MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, from, -1, to, _MAX_PATH); |
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62 } |
61 |
63 |
62 // the performance object controls manipulation of the segments |
64 // the performance object controls manipulation of the segments |
63 IDirectMusicPerformance *performance = NULL; |
65 static IDirectMusicPerformance *performance = NULL; |
64 |
66 |
65 // the segment object is where the MIDI data is stored for playback |
67 // the segment object is where the MIDI data is stored for playback |
66 IDirectMusicSegment *segment = NULL; |
68 static IDirectMusicSegment *segment = NULL; |
67 |
69 |
68 // the loader bject can load many types of DMusic related files |
70 // the loader bject can load many types of DMusic related files |
69 IDirectMusicLoader *loader = NULL; |
71 static IDirectMusicLoader *loader = NULL; |
70 |
72 |
71 // whether we've initialized COM or not (when deciding whether to shut down) |
73 // whether we've initialized COM or not (when deciding whether to shut down) |
72 int COMInitialized = 0; |
74 static int COMInitialized = 0; |
73 |
75 |
74 |
76 |
75 extern "C" bool LoadLibraryList(void **proc, const char *dll); |
77 extern "C" bool LoadLibraryList(void **proc, const char *dll); |
76 |
78 |
77 // Use lazy linking |
79 // Use lazy linking |
125 COMInitialized = 1; |
127 COMInitialized = 1; |
126 } |
128 } |
127 |
129 |
128 // Create the performance object via CoCreateInstance |
130 // Create the performance object via CoCreateInstance |
129 if (FAILED(_proc.CoCreateInstance( |
131 if (FAILED(_proc.CoCreateInstance( |
130 (REFCLSID)CLSID_DirectMusicPerformance, |
132 CLSID_DirectMusicPerformance, |
131 NULL, |
133 NULL, |
132 CLSCTX_INPROC, |
134 CLSCTX_INPROC, |
133 (REFIID)IID_IDirectMusicPerformance, |
135 IID_IDirectMusicPerformance, |
134 (LPVOID *)&performance))) { |
136 (LPVOID*)&performance |
135 MSGBOX ("Failed to create the performance object"); |
137 ))) { |
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138 MSGBOX("Failed to create the performance object"); |
136 return false; |
139 return false; |
137 } |
140 } |
138 |
141 |
139 // Initialize it |
142 // Initialize it |
140 if (FAILED(performance->Init(NULL, NULL, NULL))) { |
143 if (FAILED(performance->Init(NULL, NULL, NULL))) { |
141 MSGBOX("Failed to initialize performance object"); |
144 MSGBOX("Failed to initialize performance object"); |
142 return false; |
145 return false; |
143 } |
146 } |
144 |
147 |
145 // Choose default Windows synth |
148 // Choose default Windows synth |
146 if (FAILED(performance->AddPort (NULL))) { |
149 if (FAILED(performance->AddPort(NULL))) { |
147 MSGBOX("AddPort failed"); |
150 MSGBOX("AddPort failed"); |
148 return false; |
151 return false; |
149 } |
152 } |
150 |
153 |
151 // now we'll create the loader object. This will be used to load the |
154 // now we'll create the loader object. This will be used to load the |
152 // midi file for our demo. Again, we need to use CoCreateInstance |
155 // midi file for our demo. Again, we need to use CoCreateInstance |
153 // and pass the appropriate ID parameters |
156 // and pass the appropriate ID parameters |
154 if (FAILED(_proc.CoCreateInstance((REFCLSID)CLSID_DirectMusicLoader, |
157 if (FAILED(_proc.CoCreateInstance( |
155 NULL, CLSCTX_INPROC, |
158 CLSID_DirectMusicLoader, |
156 (REFIID)IID_IDirectMusicLoader, |
159 NULL, |
157 (LPVOID *)&loader))) { |
160 CLSCTX_INPROC, |
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161 IID_IDirectMusicLoader, |
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162 (LPVOID*)&loader |
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163 ))) { |
158 MSGBOX("Failed to create loader object"); |
164 MSGBOX("Failed to create loader object"); |
159 return false; |
165 return false; |
160 } |
166 } |
161 |
167 |
162 // that's it for initialization. If we made it this far we |
168 // that's it for initialization. If we made it this far we |
164 return true; |
170 return true; |
165 } |
171 } |
166 |
172 |
167 // Releases memory used by all of the initialized |
173 // Releases memory used by all of the initialized |
168 // DirectMusic objects in the program |
174 // DirectMusic objects in the program |
169 void ReleaseSegment (void) |
175 void ReleaseSegment(void) |
170 { |
176 { |
171 if (NULL != segment) { |
177 if (NULL != segment) { |
172 segment->Release (); |
178 segment->Release(); |
173 segment = NULL; |
179 segment = NULL; |
174 } |
180 } |
175 } |
181 } |
176 void ShutdownDirectMusic (void) |
182 |
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183 void ShutdownDirectMusic(void) |
177 { |
184 { |
178 // release everything but the segment, which the performance |
185 // release everything but the segment, which the performance |
179 // will release automatically (and it'll crash if it's been |
186 // will release automatically (and it'll crash if it's been |
180 // released already) |
187 // released already) |
181 |
188 |
182 if (NULL != loader) { |
189 if (NULL != loader) { |
183 loader->Release (); |
190 loader->Release(); |
184 loader = NULL; |
191 loader = NULL; |
185 } |
192 } |
186 |
193 |
187 if (NULL != performance) |
194 if (NULL != performance) { |
188 { |
195 performance->CloseDown(); |
189 performance->CloseDown (); |
196 performance->Release(); |
190 performance->Release (); |
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191 performance = NULL; |
197 performance = NULL; |
192 } |
198 } |
193 |
199 |
194 if (COMInitialized) { |
200 if (COMInitialized) { |
195 _proc.CoUninitialize(); |
201 _proc.CoUninitialize(); |
196 COMInitialized = 0; |
202 COMInitialized = 0; |
197 } |
203 } |
198 } |
204 } |
199 |
205 |
200 // Load MIDI file for playing |
206 // Load MIDI file for playing |
201 bool LoadMIDI (char *directory, char *filename) |
207 bool LoadMIDI(const char *directory, const char *filename) |
202 { |
208 { |
203 DMUS_OBJECTDESC obj_desc; |
209 DMUS_OBJECTDESC obj_desc; |
204 WCHAR w_directory[_MAX_PATH]; // utf-16 version of the directory name. |
210 WCHAR w_directory[_MAX_PATH]; // utf-16 version of the directory name. |
205 WCHAR w_filename[_MAX_PATH]; // utf-16 version of the file name |
211 WCHAR w_filename[_MAX_PATH]; // utf-16 version of the file name |
206 |
212 |
207 if (NULL == performance) |
213 if (NULL == performance) |
208 return false; |
214 return false; |
209 |
215 |
210 MULTI_TO_WIDE(w_directory,directory); |
216 MultiToWide(w_directory, directory); |
211 |
217 |
212 if (FAILED(loader->SetSearchDirectory((REFGUID) GUID_DirectMusicAllTypes, |
218 if (FAILED(loader->SetSearchDirectory( |
213 w_directory, FALSE))) { |
219 GUID_DirectMusicAllTypes, w_directory, FALSE |
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220 ))) { |
214 MSGBOX("LoadMIDI: SetSearchDirectory failed"); |
221 MSGBOX("LoadMIDI: SetSearchDirectory failed"); |
215 return false; |
222 return false; |
216 } |
223 } |
217 |
224 |
218 // set up the loader object info |
225 // set up the loader object info |
219 ZeroMemory (&obj_desc, sizeof (obj_desc)); |
226 ZeroMemory(&obj_desc, sizeof(obj_desc)); |
220 obj_desc.dwSize = sizeof (obj_desc); |
227 obj_desc.dwSize = sizeof(obj_desc); |
221 |
228 |
222 MULTI_TO_WIDE(w_filename,filename); |
229 MultiToWide(w_filename, filename); |
223 obj_desc.guidClass = CLSID_DirectMusicSegment; |
230 obj_desc.guidClass = CLSID_DirectMusicSegment; |
224 |
231 |
225 wcscpy (obj_desc.wszFileName,w_filename); |
232 wcscpy(obj_desc.wszFileName, w_filename); |
226 obj_desc.dwValidData = DMUS_OBJ_CLASS | DMUS_OBJ_FILENAME; |
233 obj_desc.dwValidData = DMUS_OBJ_CLASS | DMUS_OBJ_FILENAME; |
227 |
234 |
228 // release the existing segment if we have any |
235 // release the existing segment if we have any |
229 if (NULL != segment) |
236 if (NULL != segment) |
230 ReleaseSegment(); |
237 ReleaseSegment(); |
231 |
238 |
232 // and make a new segment |
239 // and make a new segment |
233 if (FAILED(loader->GetObject(&obj_desc, |
240 if (FAILED(loader->GetObject( |
234 (REFIID)IID_IDirectMusicSegment, |
241 &obj_desc, IID_IDirectMusicSegment, (LPVOID*)&segment |
235 (LPVOID *) &segment))) { |
242 ))) { |
236 MSGBOX("LoadMIDI: Get object failed"); |
243 MSGBOX("LoadMIDI: Get object failed"); |
237 return FALSE; |
244 return false; |
238 } |
245 } |
239 |
246 |
240 // next we need to tell the segment what kind of data it contains. We do this |
247 // next we need to tell the segment what kind of data it contains. We do this |
241 // with the IDirectMusicSegment::SetParam function. |
248 // with the IDirectMusicSegment::SetParam function. |
242 if (FAILED(segment->SetParam((REFGUID)GUID_StandardMIDIFile, |
249 if (FAILED(segment->SetParam( |
243 0xFFFFFFFF, 0, 0, (LPVOID)performance))) { |
250 GUID_StandardMIDIFile, 0xFFFFFFFF, 0, 0, performance |
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251 ))) { |
244 MSGBOX("LoadMIDI: SetParam (MIDI file) failed"); |
252 MSGBOX("LoadMIDI: SetParam (MIDI file) failed"); |
245 return false; |
253 return false; |
246 } |
254 } |
247 |
255 |
248 // finally, we need to tell the segment to 'download' the instruments |
256 // finally, we need to tell the segment to 'download' the instruments |
249 if (FAILED(segment->SetParam((REFGUID)GUID_Download, |
257 if (FAILED(segment->SetParam(GUID_Download, 0xFFFFFFFF, 0, 0, performance))) { |
250 0xFFFFFFFF, 0, 0, (LPVOID)performance))) { |
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251 MSGBOX("LoadMIDI: Failed to download instruments"); |
258 MSGBOX("LoadMIDI: Failed to download instruments"); |
252 return false; |
259 return false; |
253 } |
260 } |
254 |
261 |
255 // at this point, the MIDI file is loaded and ready to play! |
262 // at this point, the MIDI file is loaded and ready to play! |
256 return true; |
263 return true; |
257 } |
264 } |
258 |
265 |
259 // Start playing the MIDI file |
266 // Start playing the MIDI file |
260 void PlaySegment (void) |
267 void PlaySegment(void) |
261 { |
268 { |
262 if (NULL == performance) |
269 if (NULL == performance) |
263 return; |
270 return; |
264 |
271 |
265 if (FAILED(performance->PlaySegment(segment, 0, 0, NULL))) { |
272 if (FAILED(performance->PlaySegment(segment, 0, 0, NULL))) { |
266 MSGBOX("PlaySegment failed"); |
273 MSGBOX("PlaySegment failed"); |
267 } |
274 } |
268 } |
275 } |
269 |
276 |
270 // Stop playing |
277 // Stop playing |
271 void StopSegment (void) |
278 void StopSegment(void) |
272 { |
279 { |
273 if (NULL == performance || NULL == segment) |
280 if (NULL == performance || NULL == segment) |
274 return; |
281 return; |
275 |
282 |
276 if (FAILED(performance->Stop(segment, NULL, 0, 0))) { |
283 if (FAILED(performance->Stop(segment, NULL, 0, 0))) { |
277 MSGBOX("StopSegment failed"); |
284 MSGBOX("StopSegment failed"); |
278 } |
285 } |
279 } |
286 } |
280 |
287 |
281 // Find out whether playing has started or stopped |
288 // Find out whether playing has started or stopped |
282 bool IsSegmentPlaying (void) |
289 bool IsSegmentPlaying(void) |
283 { |
290 { |
284 if (NULL == performance || NULL == segment) |
291 if (NULL == performance || NULL == segment) |
285 return FALSE; |
292 return false; |
286 |
293 |
287 // IsPlaying return S_OK if the segment is currently playing |
294 // IsPlaying return S_OK if the segment is currently playing |
288 return performance->IsPlaying(segment, NULL) == S_OK ? TRUE : FALSE; |
295 return performance->IsPlaying(segment, NULL) == S_OK; |
289 } |
296 } |
290 |
297 |
291 void SetVolume(long vol) |
298 void SetVolume(long vol) |
292 { |
299 { |
293 long db; |
300 long db; |