1 files changed, 79 insertions, 0 deletions
diff --git a/thk04/plugin.cpp b/thk04/plugin.cpp
new file mode 100644
index 0000000..8f272d2
--- /dev/null
+++ b/thk04/plugin.cpp
@@ -0,0 +1,79 @@
+#include <string.h>
+#include <dlfcn.h>
+
+#include <plugin.h>
+#include <config.h>
+
+typedef char* (getch)(void);
+typedef int (getint)(void);
+
+Plugin::Plugin() {
+  _name = _info = _author = _path = NULL;
+  _handle = NULL;
+  _version = 0;
+  __init = NULL;
+  __clean = NULL;
+  __process = NULL;
+}
+
+void *Plugin::operator[](const char *sym) {
+  if(!_handle) return NULL;
+  void *point;  
+  point = dlsym(_handle, sym);
+  if(point==NULL)
+    warning("Plugin::%s[%s] %s",_name,sym,dlerror());
+  return(point);
+}
+
+static inline int dummy_kbd_input(SDL_keysym *keysym) { return(0); }
+
+bool Plugin::open(const char *path) {
+  getch *getstr = NULL;
+  getint *getver = NULL;
+
+  _handle = dlopen(path,RTLD_NOW);
+  if(!_handle) {
+    warning("can't open plugin: %s",dlerror());
+    return(false);
+  }
+
+  getstr = (getch*) (*this)["getname"];
+  if(getstr) _name = (*getstr)();
+
+  getstr = (getch*) (*this)["getauthor"];
+  if(getstr) _author = (*getstr)();
+
+  getstr = (getch*) (*this)["getinfo"];
+  if(getstr) _info = (*getstr)();
+
+  getver = (getint*) (*this)["getversion"];
+  if(getver) _version = (*getver)();
+  else _version = 0;
+
+  func("Opened plugin %s from %s with handle %p",_name,path,_handle);
+  
+  __init = (t_init*)(*this)["init"];
+  __clean = (t_clean*)(*this)["clean"];
+  __process = (t_process*)(*this)["process"];
+  __kbd_input = (t_kbdin*)(*this)["kbd_input"];
+  if(!__kbd_input) __kbd_input = dummy_kbd_input;
+  if(!__init||!__clean||!__process) {
+    warning("invalid plugin %s",path);
+    dlclose(_handle);
+    return(false);
+  }
+
+  _path = strdup(path);    
+  return(true);
+}
+
+void Plugin::_delete() {
+  //  if(__clean) clean();
+  if(_handle) dlclose(_handle);
+
+  if(_path) jfree(_path);
+}
+
+Plugin::~Plugin(void) {
+  _delete();
+}