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) {

  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, 0)(pdata, size);
  65 }
  66 
  67 int     DoSplashLoadFile(const char* filename) {
  68     INVOKE(SplashLoadFile, 0)(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) {