jdk/src/share/bin/splashscreen_stubs.c
author ohair
Tue, 25 May 2010 15:58:33 -0700
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child 25552 96abb01815f6
permissions -rw-r--r--
6943119: Rebrand source copyright notices Reviewed-by: darcy, weijun
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/*
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 * Copyright (c) 2005, Oracle and/or its affiliates. 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.  Oracle designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * 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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}