src/share/bin/splashscreen_stubs.c

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  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 
  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 }











  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 
  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 char* (*SplashGetScaledImageName_t)(const char* fileName,
  42                         const char* jarName, float* scaleFactor);
  43 
  44 /*
  45  * This macro invokes a function from the shared lib.
  46  * it locates a function with SplashProcAddress on demand.
  47  * if SplashProcAddress fails, def value is returned.
  48  *
  49  * it is further wrapped with INVOKEV (works with functions which return
  50  * void and INVOKE (for all other functions). INVOKEV looks a bit ugly,
  51  * that's due being unable to return a value of type void in C. INVOKEV
  52  * works around this by using semicolon instead of return operator.
  53  */
  54 #define _INVOKE(name,def,ret) \
  55     static void* proc = NULL; \
  56     if (!proc) { proc = SplashProcAddress(#name); } \
  57     if (!proc) { return def; } \
  58     ret ((name##_t)proc)
  59 
  60 #define INVOKE(name,def) _INVOKE(name,def,return)
  61 #define INVOKEV(name) _INVOKE(name, ,;)
  62 
  63 int     DoSplashLoadMemory(void* pdata, int size) {
  64     INVOKE(SplashLoadMemory, NULL)(pdata, size);
  65 }
  66 
  67 int     DoSplashLoadFile(const char* filename) {
  68     INVOKE(SplashLoadFile, NULL)(filename);
  69 }
  70 
  71 void    DoSplashInit(void) {
  72     INVOKEV(SplashInit)();
  73 }
  74 
  75 void    DoSplashClose(void) {
  76     INVOKEV(SplashClose)();
  77 }
  78 
  79 void    DoSplashSetFileJarName(const char* fileName, const char* jarName) {
  80     INVOKEV(SplashSetFileJarName)(fileName, jarName);
  81 }
  82 
  83 void    DoSplashSetScaleFactor(float scaleFactor) {
  84     INVOKEV(SplashSetScaleFactor)(scaleFactor);
  85 }
  86 
  87 char*    DoSplashGetScaledImageName(const char* fileName, const char* jarName,
  88                                     float* scaleFactor) {
  89     INVOKE(SplashGetScaledImageName, NULL)(fileName, jarName, scaleFactor);
  90 }