1 /*

     2  * Copyright 2005 Sun Microsystems, Inc.  All Rights Reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Sun designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Sun in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    22  * CA 95054 USA or visit www.sun.com if you need additional information or

    23  * have any questions.

    24  */

    25 

    26 #include <stdio.h>

    27 #include "splashscreen.h"

    28 

    29 extern void* SplashProcAddress(const char* name); /* in java_md.c */

    30 

    31 /*

    32  * Prototypes of pointers to functions in splashscreen shared lib

    33  */

    34 typedef int (*SplashLoadMemory_t)(void* pdata, int size);

    35 typedef int (*SplashLoadFile_t)(const char* filename);

    36 typedef void (*SplashInit_t)(void);

    37 typedef void (*SplashClose_t)(void);

    38 typedef void (*SplashSetFileJarName_t)(const char* fileName,

    39                                        const char* jarName);

    40 

    41 /*

    42  * This macro invokes a function from the shared lib.

    43  * it locates a function with SplashProcAddress on demand.

    44  * if SplashProcAddress fails, def value is returned.

    45  *

    46  * it is further wrapped with INVOKEV (works with functions which return

    47  * void and INVOKE (for all other functions). INVOKEV looks a bit ugly,

    48  * that's due being unable to return a value of type void in C. INVOKEV

    49  * works around this by using semicolon instead of return operator.

    50  */

    51 #define _INVOKE(name,def,ret) \

    52     static void* proc = NULL; \

    53     if (!proc) { proc = SplashProcAddress(#name); } \

    54     if (!proc) { return def; } \

    55     ret ((name##_t)proc)

    56 

    57 #define INVOKE(name,def) _INVOKE(name,def,return)

    58 #define INVOKEV(name) _INVOKE(name, ,;)

    59 

    60 int     DoSplashLoadMemory(void* pdata, int size) {

    61     INVOKE(SplashLoadMemory,0)(pdata, size);

    62 }

    63 

    64 int     DoSplashLoadFile(const char* filename) {

    65     INVOKE(SplashLoadFile,0)(filename);

    66 }

    67 

    68 void    DoSplashInit(void) {

    69     INVOKEV(SplashInit)();

    70 }

    71 

    72 void    DoSplashClose(void) {

    73     INVOKEV(SplashClose)();

    74 }

    75 

    76 void    DoSplashSetFileJarName(const char* fileName, const char* jarName) {

    77     INVOKEV(SplashSetFileJarName)(fileName, jarName);

    78 }