1 /*
2 * Copyright (c) 2005, 2015, Oracle and/or its affiliates. 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #include <stdio.h>
27 #include "splashscreen.h"
28 #include "jni.h"
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 typedef void (*SplashSetScaleFactor_t)(float scaleFactor);
41 typedef jboolean (*SplashGetScaledImageName_t)(const char* fileName,
42 const char* jarName, float* scaleFactor,
43 char *scaleImageName, const size_t scaleImageNameLength);
44 typedef int (*SplashGetScaledImgNameMaxPstfixLen_t)(const char* filename);
45
46 /*
47 * This macro invokes a function from the shared lib.
48 * it locates a function with SplashProcAddress on demand.
49 * if SplashProcAddress fails, def value is returned.
50 *
51 * it is further wrapped with INVOKEV (works with functions which return
52 * void and INVOKE (for all other functions). INVOKEV looks a bit ugly,
53 * that's due being unable to return a value of type void in C. INVOKEV
54 * works around this by using semicolon instead of return operator.
55 */
56 #define _INVOKE(name,def,ret) \
57 static void* proc = NULL; \
58 if (!proc) { proc = SplashProcAddress(#name); } \
59 if (!proc) { return def; } \
60 ret ((name##_t)proc)
61
62 #define INVOKE(name,def) _INVOKE(name,def,return)
63 #define INVOKEV(name) _INVOKE(name, ,;)
64
65
DoSplashLoadMemory(void * pdata,int size)66 int DoSplashLoadMemory(void* pdata, int size) {
67 INVOKE(SplashLoadMemory, 0)(pdata, size);
68 }
69
DoSplashLoadFile(const char * filename)70 int DoSplashLoadFile(const char* filename) {
71 INVOKE(SplashLoadFile, 0)(filename);
72 }
73
DoSplashInit(void)74 void DoSplashInit(void) {
75 INVOKEV(SplashInit)();
76 }
77
DoSplashClose(void)78 void DoSplashClose(void) {
79 INVOKEV(SplashClose)();
80 }
81
DoSplashSetFileJarName(const char * fileName,const char * jarName)82 void DoSplashSetFileJarName(const char* fileName, const char* jarName) {
83 INVOKEV(SplashSetFileJarName)(fileName, jarName);
84 }
85
DoSplashSetScaleFactor(float scaleFactor)86 void DoSplashSetScaleFactor(float scaleFactor) {
87 INVOKEV(SplashSetScaleFactor)(scaleFactor);
88 }
89
DoSplashGetScaledImageName(const char * fileName,const char * jarName,float * scaleFactor,char * scaledImageName,const size_t scaledImageNameLength)90 jboolean DoSplashGetScaledImageName(const char* fileName, const char* jarName,
91 float* scaleFactor, char *scaledImageName, const size_t scaledImageNameLength) {
92 INVOKE(SplashGetScaledImageName, 0)(fileName, jarName, scaleFactor,
93 scaledImageName, scaledImageNameLength);
94 }
95
DoSplashGetScaledImgNameMaxPstfixLen(const char * fileName)96 int DoSplashGetScaledImgNameMaxPstfixLen(const char *fileName) {
97 INVOKE(SplashGetScaledImgNameMaxPstfixLen, 0)(fileName);
98 }
99
100