1 /*

     2 * Copyright (c) 2007 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:   M3G 3D Mesh

    15 *

    16 */

    17 

    18 

    19 

    20 #include "alf/alfm3gmesh.h"

    21 #include "alf/alfenv.h"

    22 #include "alf/alfgencomponent.h"

    23 #include "alf/alfconstants.h"

    24 #include "alflogger.h"

    25 

    26 struct CAlfM3GMesh::TM3GMeshPrivateData

    27     {

    28     CAlfEnv* iEnv; // Not owned

    29     CAlfGenComponent* iComms; // Not owned

    30     };

    31 

    32 // ======== MEMBER FUNCTIONS ========

    33 

    34 // ---------------------------------------------------------------------------

    35 // Exposed constructor

    36 // ---------------------------------------------------------------------------

    37 //

    38 CAlfM3GMesh* CAlfM3GMesh::NewL( CAlfGenComponent& aComms, CAlfEnv& aEnv )

    39     {

    40     CAlfM3GMesh* self = new( ELeave ) CAlfM3GMesh;

    41     CleanupStack::PushL( self );

    42     self->ConstructL( aComms, aEnv );

    43     CleanupStack::Pop( self );

    44     return self;

    45     }

    46 

    47 // ---------------------------------------------------------------------------

    48 // First phase constructor

    49 // ---------------------------------------------------------------------------

    50 //

    51 CAlfM3GMesh::CAlfM3GMesh()

    52     {

    53     }

    54 

    55 // ---------------------------------------------------------------------------

    56 // Second phase constructor

    57 // ---------------------------------------------------------------------------

    58 //

    59 void CAlfM3GMesh::ConstructL( CAlfGenComponent& aComms, CAlfEnv& aEnv )

    60     {

    61     // Construct the base class

    62     CAlfMesh::ConstructL(aComms, EAlfMeshTypeM3G);

    63     

    64     // Create object data.

    65     iData = new (ELeave) TM3GMeshPrivateData;

    66     

    67     // Zero all object data

    68     iData->iEnv = NULL;

    69     iData->iComms = NULL;

    70     

    71     // Fill data

    72     iData->iEnv = &aEnv;

    73     iData->iComms = &aComms;

    74     

    75     // Create input and output buffers for inter-process communication

    76     TBuf8<1> outDummy;

    77     TInt param = EAlfMeshTypeM3G;

    78     TPckgC<TInt> buf(param);

    79         

    80     // Call a synchronous command to create an associated server-side M3G mesh.

    81     TInt err = iData->iComms->DoSynchronousCmd(EAlfMeshVisualCreateMesh, buf, outDummy);

    82     if (err)

    83         {

    84         __ALFLOGSTRING1( "CAlfM3GMesh::ConstructL leave error %d", err )

    85         User::Leave( err );

    86         }

    87     }

    88 

    89 // ---------------------------------------------------------------------------

    90 // Destructor

    91 // ---------------------------------------------------------------------------

    92 //

    93 CAlfM3GMesh::~CAlfM3GMesh()

    94     {

    95     delete iData;

    96     iData = NULL;

    97     }

    98 

    99 

   100 // ---------------------------------------------------------------------------

   101 // Loads a new M3G Mesh scene into this M3G mesh

   102 // ---------------------------------------------------------------------------

   103 //

   104 EXPORT_C void CAlfM3GMesh::LoadSceneL(const TDesC& aFileName)

   105     {

   106     ASSERT(iData != NULL);

   107     

   108     TFileName filename = aFileName;

   109     

   110     // Prepend the image file path to the filename.

   111     iData->iEnv->TextureManager().PrependImagePath(filename);

   112     

   113     // Create input and output buffers for inter-process communication

   114     TBuf8<1> outDummy;

   115     TAlfMeshLoadM3GSceneParams params;

   116     params.iFilename = filename;

   117     

   118     TPckg<TAlfMeshLoadM3GSceneParams> paramsPckg(params);

   119     

   120     // Call a synchronous command to load the M3G scene graph

   121     TInt err = iData->iComms->DoSynchronousCmd(EAlfMeshLoadM3GScene, paramsPckg, outDummy);

   122     if (err)

   123         {

   124         __ALFLOGSTRING1( "CAlfM3GMesh::LoadSceneL leave error %d", err )

   125         User::Leave( err );

   126         }    

   127     }