|
1 /* |
|
2 * Copyright (c) 2004 Nokia Corporation and/or its subsidiary(-ies). |
|
3 * All rights reserved. |
|
4 * This component and the accompanying materials are made available |
|
5 * under the terms of "Eclipse Public License v1.0" |
|
6 * which accompanies this distribution, and is available |
|
7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
8 * |
|
9 * Initial Contributors: |
|
10 * Nokia Corporation - initial contribution. |
|
11 * |
|
12 * Contributors: |
|
13 * |
|
14 * Description: Implementation of the bassboost effect message handler class. |
|
15 * |
|
16 */ |
|
17 |
|
18 |
|
19 |
|
20 // INCLUDE FILES |
|
21 #include "BassBoostMessageHandler.h" |
|
22 #include "BassBoostMessageTypes.h" |
|
23 #include "EffectDataQueItem.h" |
|
24 #include <BassBoostBase.h> |
|
25 #ifdef _DEBUG |
|
26 #include <e32svr.h> |
|
27 #endif |
|
28 |
|
29 // ================= MEMBER FUNCTIONS ======================= |
|
30 |
|
31 // C++ default constructor can NOT contain any code, that |
|
32 // might leave. |
|
33 // |
|
34 CBassBoostMessageHandler::CBassBoostMessageHandler( |
|
35 CBassBoost* aBassBoost ) |
|
36 : CMMFObject(KUidBassBoostEffect), |
|
37 iBassBoost(NULL), |
|
38 iMessage(NULL), |
|
39 iRegistered(EFalse), |
|
40 iEffectDataQue(NULL) |
|
41 { |
|
42 iBassBoost = aBassBoost; |
|
43 } |
|
44 |
|
45 |
|
46 EXPORT_C CBassBoostMessageHandler* CBassBoostMessageHandler::NewL( |
|
47 TAny* aCustomInterface ) |
|
48 { |
|
49 CBassBoost* bassboost = (CBassBoost*)aCustomInterface; |
|
50 CBassBoostMessageHandler* self = new (ELeave) CBassBoostMessageHandler(bassboost); |
|
51 self->ConstructL(); |
|
52 return self; |
|
53 } |
|
54 |
|
55 |
|
56 // ----------------------------------------------------------------------------- |
|
57 // CBassBoostMessageHandler::ConstructL |
|
58 // Symbian 2nd phase constructor can leave. |
|
59 // Create and initializes the effect data queue. |
|
60 // ----------------------------------------------------------------------------- |
|
61 // |
|
62 void CBassBoostMessageHandler::ConstructL() |
|
63 { |
|
64 iEffectDataQue = new(ELeave) TSglQue<CEffectDataQueItem>(_FOFF(CEffectDataQueItem, iLink)); |
|
65 } |
|
66 |
|
67 |
|
68 // ----------------------------------------------------------------------------- |
|
69 // CBassBoostMessageHandler::~CBassBoostMessageHandler |
|
70 // Before going away, unregister with the CI BassBoost object. |
|
71 // The observation message must be completed if outstanding. |
|
72 // The effect data queue must be emptied and destroyed. |
|
73 // ----------------------------------------------------------------------------- |
|
74 // |
|
75 CBassBoostMessageHandler::~CBassBoostMessageHandler() |
|
76 { |
|
77 |
|
78 #ifdef _DEBUG |
|
79 RDebug::Print(_L("CBassBoostMessageHandler::~CBassBoostMessageHandler")); |
|
80 #endif |
|
81 |
|
82 if(iBassBoost) |
|
83 iBassBoost->UnRegisterObserver(*this); |
|
84 iRegistered = EFalse; |
|
85 |
|
86 if(iMessage) |
|
87 { |
|
88 if ( !iMessage->IsCompleted() ) |
|
89 { |
|
90 iMessage->Complete(KErrCancel); |
|
91 delete iMessage; |
|
92 } |
|
93 } |
|
94 |
|
95 if ( iEffectDataQue ) |
|
96 { |
|
97 CEffectDataQueItem* queItem; |
|
98 while ( !iEffectDataQue->IsEmpty() ) |
|
99 { |
|
100 queItem = iEffectDataQue->First(); |
|
101 iEffectDataQue->Remove(*queItem); |
|
102 delete queItem; |
|
103 } |
|
104 |
|
105 delete iEffectDataQue; |
|
106 } |
|
107 |
|
108 delete iBassBoost; |
|
109 |
|
110 } |
|
111 |
|
112 |
|
113 // --------------------------------------------------------- |
|
114 // CBassBoostMessageHandler::HandleRequest |
|
115 // (other items were commented in a header). |
|
116 // --------------------------------------------------------- |
|
117 // |
|
118 void CBassBoostMessageHandler::HandleRequest( |
|
119 TMMFMessage& aMessage ) |
|
120 { |
|
121 ASSERT(aMessage.Destination().InterfaceId() == KUidBassBoostEffect); |
|
122 TRAPD(error,DoHandleRequestL(aMessage)); |
|
123 if ( error ) |
|
124 { |
|
125 aMessage.Complete(error); |
|
126 } |
|
127 } |
|
128 |
|
129 // --------------------------------------------------------- |
|
130 // CBassBoostMessageHandler::DoHandleRequestL |
|
131 // Dispatches the message to the appropriate handler. |
|
132 // --------------------------------------------------------- |
|
133 // |
|
134 void CBassBoostMessageHandler::DoHandleRequestL( |
|
135 TMMFMessage& aMessage ) |
|
136 { |
|
137 switch( aMessage.Function() ) |
|
138 { |
|
139 case EBfInitialize: // Request to initialize the bassboost |
|
140 { |
|
141 DoInitializeL(aMessage); |
|
142 break; |
|
143 } |
|
144 case EBfApply: // Request to apply the bassboost settings |
|
145 { |
|
146 DoApplyL(aMessage); |
|
147 break; |
|
148 } |
|
149 case EBfObserve: // Observation request |
|
150 { |
|
151 DoObserveL(aMessage); |
|
152 break; |
|
153 } |
|
154 default: |
|
155 { |
|
156 aMessage.Complete(KErrNotSupported); |
|
157 } |
|
158 } |
|
159 } |
|
160 |
|
161 // --------------------------------------------------------- |
|
162 // CBassBoostMessageHandler::DoInitializeL |
|
163 // --------------------------------------------------------- |
|
164 // |
|
165 void CBassBoostMessageHandler::DoInitializeL(TMMFMessage& aMessage) |
|
166 { |
|
167 aMessage.WriteDataToClient(iBassBoost->DoEffectData()); |
|
168 aMessage.Complete(KErrNone); |
|
169 } |
|
170 |
|
171 // --------------------------------------------------------- |
|
172 // CBassBoostMessageHandler::DoApplyL |
|
173 // Extracts the data from the message. The client bassboost data |
|
174 // is applied to the CI bassboost object. |
|
175 // --------------------------------------------------------- |
|
176 // |
|
177 void CBassBoostMessageHandler::DoApplyL( |
|
178 TMMFMessage& aMessage ) |
|
179 { |
|
180 TEfBassBoostDataPckg bassboostPckgFromClient; |
|
181 aMessage.ReadData1FromClient(bassboostPckgFromClient); |
|
182 |
|
183 iBassBoost->SetEffectData(bassboostPckgFromClient); |
|
184 iBassBoost->ApplyL(); |
|
185 aMessage.Complete(KErrNone); |
|
186 } |
|
187 |
|
188 // --------------------------------------------------------- |
|
189 // CBassBoostMessageHandler::DoObserveL |
|
190 // Receives the observation request message and depending |
|
191 // on the status of the effect data queue, the message is |
|
192 // completed immediately or saved for later completion. |
|
193 // --------------------------------------------------------- |
|
194 // |
|
195 void CBassBoostMessageHandler::DoObserveL( |
|
196 TMMFMessage& aMessage ) |
|
197 { |
|
198 |
|
199 #ifdef _DEBUG |
|
200 RDebug::Print(_L("CBassBoostMessageHandler::DoObserveL")); |
|
201 #endif |
|
202 |
|
203 if ( !iRegistered ) // Don't register again if we're registered. |
|
204 { |
|
205 iBassBoost->RegisterObserverL(*this); |
|
206 iRegistered = ETrue; |
|
207 } |
|
208 |
|
209 if ( iEffectDataQue->IsEmpty() ) |
|
210 { |
|
211 // Message is saved and completed when an event occurs |
|
212 iMessage = new(ELeave) TMMFMessage(aMessage); |
|
213 } |
|
214 else |
|
215 { |
|
216 TEfBassBoostDataPckg dataPckg; |
|
217 CEffectDataQueItem* item = iEffectDataQue->First(); |
|
218 dataPckg.Copy(item->EffectData()); |
|
219 aMessage.WriteDataToClient(dataPckg); |
|
220 aMessage.Complete(KErrNone); |
|
221 iEffectDataQue->Remove(*item); |
|
222 delete item; |
|
223 } |
|
224 } |
|
225 |
|
226 // --------------------------------------------------------- |
|
227 // CBassBoostMessageHandler::EffectChanged |
|
228 // The CI bassboost object has changed state. |
|
229 // The observation message is completed if no data has been |
|
230 // queued up. Otherwise, the CI bassboost object's data is |
|
231 // packaged and queued. |
|
232 // --------------------------------------------------------- |
|
233 // |
|
234 void CBassBoostMessageHandler::EffectChanged( |
|
235 const CAudioEffect* aAudioEffect, |
|
236 TUint8 /*aEvent*/ ) |
|
237 { |
|
238 #ifdef _DEBUG |
|
239 RDebug::Print(_L("CBassBoostMessageHandler::EffectChanged")); |
|
240 #endif |
|
241 |
|
242 if ( iMessage && !iMessage->IsCompleted() && iEffectDataQue->IsEmpty() ) |
|
243 { |
|
244 iMessage->WriteDataToClient(((CBassBoost*)aAudioEffect)->DoEffectData()); |
|
245 iMessage->Complete(KErrNone); |
|
246 delete iMessage; |
|
247 iMessage = NULL; |
|
248 } |
|
249 else // no message pending and there is no event queued up |
|
250 { |
|
251 // Saves the data and complete an observation message next time when |
|
252 // there is a pending message. |
|
253 // Saves the data and complete an observation message next time around. |
|
254 HBufC8* data = NULL; |
|
255 TRAPD(err1,data = ((CBassBoost*)aAudioEffect)->DoEffectData().AllocL()); |
|
256 if(!err1) |
|
257 { |
|
258 //CleanupStack::PushL(data); |
|
259 CEffectDataQueItem* item = NULL; |
|
260 TRAPD(err2,item = CEffectDataQueItem::NewL(data)); |
|
261 if(!err2) |
|
262 { |
|
263 iEffectDataQue->AddLast(*item); |
|
264 } |
|
265 else |
|
266 { |
|
267 delete data; |
|
268 } |
|
269 } |
|
270 else |
|
271 { |
|
272 #ifdef _DEBUG |
|
273 RDebug::Print(_L("CBassBoostMessageHandler::EffectChanged Error Allocating Memory %d"),err1); |
|
274 #endif |
|
275 } |
|
276 } |
|
277 } |
|
278 |
|
279 |
|
280 // ========================== OTHER EXPORTED FUNCTIONS ========================= |
|
281 |
|
282 |
|
283 |
|
284 |
|
285 // End of File |