79 lines
2.8 KiB
C
79 lines
2.8 KiB
C
/*
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* Copyright 2005 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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#include <stdio.h>
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#include "splashscreen.h"
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extern void* SplashProcAddress(const char* name); /* in java_md.c */
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/*
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* Prototypes of pointers to functions in splashscreen shared lib
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*/
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typedef int (*SplashLoadMemory_t)(void* pdata, int size);
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typedef int (*SplashLoadFile_t)(const char* filename);
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typedef void (*SplashInit_t)(void);
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typedef void (*SplashClose_t)(void);
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typedef void (*SplashSetFileJarName_t)(const char* fileName,
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const char* jarName);
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/*
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* This macro invokes a function from the shared lib.
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* it locates a function with SplashProcAddress on demand.
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* if SplashProcAddress fails, def value is returned.
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*
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* it is further wrapped with INVOKEV (works with functions which return
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* void and INVOKE (for all other functions). INVOKEV looks a bit ugly,
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* that's due being unable to return a value of type void in C. INVOKEV
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* works around this by using semicolon instead of return operator.
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*/
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#define _INVOKE(name,def,ret) \
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static void* proc = NULL; \
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if (!proc) { proc = SplashProcAddress(#name); } \
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if (!proc) { return def; } \
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ret ((name##_t)proc)
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#define INVOKE(name,def) _INVOKE(name,def,return)
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#define INVOKEV(name) _INVOKE(name, ,;)
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int DoSplashLoadMemory(void* pdata, int size) {
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INVOKE(SplashLoadMemory,0)(pdata, size);
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}
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int DoSplashLoadFile(const char* filename) {
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INVOKE(SplashLoadFile,0)(filename);
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}
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void DoSplashInit(void) {
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INVOKEV(SplashInit)();
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}
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void DoSplashClose(void) {
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INVOKEV(SplashClose)();
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}
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void DoSplashSetFileJarName(const char* fileName, const char* jarName) {
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INVOKEV(SplashSetFileJarName)(fileName, jarName);
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}
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