1 /*

     2 * Copyright (c) 2005 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 the License "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: Transformation cache interface

    15 *

    16 */

    17 

    18 #ifndef __M3G_TCACHE_H__

    19 #define __M3G_TCACHE_H__

    20 

    21 /*!

    22  * \internal

    23  * \file

    24  * \brief Transformation cache interface

    25  */

    26 

    27 typedef struct TCacheImpl TCache;

    28 

    29 #include "m3g_node.h"

    30 

    31 /*----------------------------------------------------------------------

    32  * Internal functions

    33  *--------------------------------------------------------------------*/

    34 

    35 static  TCache* m3gCreateTransformCache (Interface *m3g);

    36 static  void    m3gDeleteTransformCache (TCache *cache);

    37 

    38 static  void    m3gCacheComposite       (TCache *cache, const Transformable *t, const Matrix *m);

    39 static  void    m3gCachePath            (TCache *cache, const Node *from, const Node *to, const Matrix *m);

    40 

    41 static  M3Gbool m3gGetCachedComposite   (const TCache *cache, const Transformable *t, Matrix *m);

    42 static  M3Gbool m3gGetCachedPath        (const TCache *cache, const Node *from, const Node *to, Matrix *m);

    43 

    44 static  void m3gInvalidateCachedPaths(TCache *cache, const Node *n);

    45 static  void m3gInvalidateCachedTransforms(TCache *cache, const Transformable *t);

    46 

    47 

    48 #endif /*__M3G_TCACHE_H__*/