TI-NESulator SVN reimport

src/pluginsmanager/manager.c

@@ -0,0 +1,136 @@
+/*
+ *  Plugins manager - The TI-NESulator Project
+ *  plugins.c
+ *
+ *  Created by Manoel TRAPIER on 02/04/07.
+ *  Copyright (c) 2003-2007 986Corp. All rights reserved.
+ *
+ *  $LastChangedDate$
+ *  $Author$
+ *  $HeadURL$
+ *  $Revision$
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <plugins/manager.h>
+
+typedef struct Plugin_
+{   
+    byte *name;
+    
+    PluginInit init;
+    PluginDeinit deinit;
+
+} Plugin;
+
+typedef struct KeyHandler_
+{
+    byte key;
+    
+    PluginKeypress func;
+    
+    struct KeyHandler_ *next;
+    
+} KeyHandler;
+
+KeyHandler *keyHandlersList = NULL;
+
+#include "plugins_list.h"
+
+void plugin_list()
+{
+    Plugin *ptr = &(Plugins[0]);
+    int i = 1;
+    printf("Available plugins:\n");
+    while(ptr->name != NULL)
+    {
+        printf("%d - %s\n", i, ptr->name);
+        ptr++; i++;
+    }
+}
+
+int plugin_load(int id)
+{
+    Plugin *ptr = &(Plugins[0]);
+    
+    for ( ; id == 0 && ptr != NULL; id -- )
+        ptr ++;
+
+    if (ptr == NULL)
+        return -1;
+
+    return ptr->init();
+}
+
+int plugin_unload(int id)
+{
+    Plugin *ptr = &(Plugins[0]);
+    
+    for ( ; id == 0 && ptr != NULL; id -- )
+        ptr ++;
+
+    if (ptr == NULL)
+        return -1;
+
+    return ptr->deinit();
+}
+
+
+/* Available functions for plugins */
+int plugin_install_keypressHandler(byte key, PluginKeypress func)
+{
+    KeyHandler *ptr;
+    
+    if (keyHandlersList == NULL)
+    {
+        keyHandlersList = (KeyHandler*) malloc(sizeof(KeyHandler));
+        
+        keyHandlersList->key = key;
+        keyHandlersList->func = func;
+        keyHandlersList->next = NULL;
+    }
+    else
+    { 
+        ptr = keyHandlersList;
+        
+        while(ptr->next != NULL)
+            ptr = ptr->next;
+        
+        ptr->next = (KeyHandler*) malloc(sizeof(KeyHandler));
+        
+        ptr = ptr->next;
+        
+        ptr->key = key;
+        ptr->func = func;
+        ptr->next = NULL;
+
+    }
+    
+    return 0;
+}
+
+int plugin_remove_keypressHandler(byte key, PluginKeypress func)
+{   /* actually do nothing, we cant remove plugin online */
+    return 0;
+}
+
+
+/* Available functions outside of plugins */
+int plugin_keypress(byte key)
+{
+    KeyHandler *ptr = keyHandlersList;
+    
+    while(ptr != NULL)
+    {
+        if (ptr->key == key)
+        {
+            ptr->func();
+        }
+        ptr = ptr->next;
+    }
+    
+    return 0;
+}