1 /*

     2 * Copyright (c) 2003 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:

    15 *

    16 */

    17 

    18 

    19 /*!

    20  * \file \brief Global methods for JSR-184

    21  *

    22  * This file is <em>included</em>, not linked, by specific VM bindings.

    23  *

    24  */

    25 

    26 #ifndef M3G_JAVA_INCLUDE

    27 #   error included by m3g_<platform>_java_api.c; do not compile separately.

    28 #endif

    29 

    30 #include <m3g/m3g_core.h>

    31 #include "m3g_jsr184.h"

    32 

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

    34  * Internal functions

    35  *--------------------------------------------------------------------*/

    36 

    37 /*!

    38  * \brief Returns the number of bytes per pixel for a JSR-184 pixel

    39  * format

    40  *

    41  * \note Dependent on constants in Image2D.java

    42  */

    43 static M3Guint jsr184BytesPerPixel(int jsrFormat)

    44 {

    45     switch (jsrFormat)

    46     {

    47     case M3G_ALPHA:

    48         return 1;

    49     case M3G_LUMINANCE:

    50         return 1;

    51     case M3G_LUMINANCE_ALPHA:

    52         return 2;

    53     case M3G_RGB:

    54         return 3;

    55     case M3G_RGBA:

    56         return 4;

    57     default:

    58         return 0;

    59     }

    60 }

    61 

    62 /*!

    63  * \brief Returns m3g core pixel format for qiven Qt based pixel format

    64  *

    65  */

    66 static M3GPixelFormat mapQtPixelformat(int qtFormat)

    67 {

    68     switch (qtFormat)

    69     {

    70     case QImage::Format_RGB32:

    71     case QImage::Format_ARGB32:

    72         return M3G_ARGB8;

    73     case QImage::Format_RGB888:

    74         return M3G_RGB8;

    75     case QImage::Format_RGB444:

    76         return M3G_RGB4;

    77     case QImage::Format_RGB16:

    78         return M3G_RGB565;

    79     default:

    80         return M3G_NO_FORMAT;

    81     }

    82 }

    83 

    84 

    85 /*!

    86  * \brief Return a MIDP exception string corresponding to an M3G error

    87  */

    88 static const char *jsr184Exception(M3Genum errorCode)

    89 {

    90     switch (errorCode)

    91     {

    92     case M3G_NO_ERROR:

    93         return NULL;

    94     case M3G_OUT_OF_MEMORY:

    95         return "java/lang/OutOfMemoryError";

    96     case M3G_INVALID_OPERATION:

    97         return "java/lang/IllegalStateException";

    98     case M3G_INVALID_INDEX:

    99         return "java/lang/IndexOutOfBoundsException";

   100     case M3G_NULL_POINTER:

   101         return "java/lang/NullPointerException";

   102     case M3G_ARITHMETIC_ERROR:

   103         return "java/lang/ArithmeticException";

   104     case M3G_IO_ERROR:

   105         return "java/io/IOException";

   106     default:

   107         return "java/lang/IllegalArgumentException";

   108     }

   109 }