(Frontend) Add get_rating to frontend context

frontend/frontend_context.h

@@ -35,6 +35,7 @@ typedef struct frontend_ctx_driver
    int (*process_events)(void *data);
    void (*exec)(const char *, bool);
    void (*shutdown)(bool);
+   int (*get_rating)(void);
 
    // Human readable string.
    const char *ident;

frontend/platform/platform_android.c

@@ -649,6 +649,13 @@ static void system_shutdown(bool unused)
    exit(0);
 }
 
+static int frontend_android_get_rating(void)
+{
+   /* TODO/FIXME - look at unique identifier per device and 
+    * determine rating for some */
+   return -1;
+}
+
 const frontend_ctx_driver_t frontend_ctx_android = {
    get_environment_settings,     /* get_environment_settings */
    system_init,                  /* init */
@@ -658,5 +665,6 @@ const frontend_ctx_driver_t frontend_ctx_android = {
    process_events,               /* process_events */
    NULL,                         /* exec */
    system_shutdown,              /* shutdown */
+   frontend_android_get_rating,  /* get_rating */
    "android",
 };

frontend/platform/platform_apple.c

@@ -121,6 +121,12 @@ int apple_rarch_load_content(int argc, char* argv[])
    return 0;
 }
 
+static int frontend_apple_get_rating(void)
+{
+   /* TODO/FIXME - look at unique identifier per device and 
+    * determine rating for some */
+   return -1;
+}
 const frontend_ctx_driver_t frontend_ctx_apple = {
    NULL,                         /* environment_get */
    NULL,                         /* init */
@@ -130,5 +136,6 @@ const frontend_ctx_driver_t frontend_ctx_apple = {
    NULL,                         /* process_events */
    NULL,                         /* exec */
    NULL,                         /* shutdown */
+   frontend_apple_get_rating,    /* get_rating */
    "apple",
 };

frontend/platform/platform_gx.c

@@ -366,6 +366,15 @@ static void system_exec(const char *path, bool should_load_game)
 #endif
 }
 
+static int frontend_gx_get_rating(void)
+{
+#ifdef HW_RVL
+   return 8;
+#else
+   return 6;
+#endif
+}
+
 const frontend_ctx_driver_t frontend_ctx_gx = {
    get_environment_settings,        /* get_environment_settings */
    system_init,                     /* init */
@@ -375,6 +384,7 @@ const frontend_ctx_driver_t frontend_ctx_gx = {
    NULL,                            /* process_events */
    system_exec,                     /* exec */
    NULL,                            /* shutdown */
+   frontend_gx_get_rating,         /* get_rating */
    "gx",
 #ifdef IS_SALAMANDER
    salamander_init,

frontend/platform/platform_null.c

@@ -21,6 +21,12 @@
 #include <stddef.h>
 #include <string.h>
 
+static int frontend_null_get_rating(void)
+{
+   /* TODO/FIXME: Determine rating */
+   return -1;
+}
+
 const frontend_ctx_driver_t frontend_ctx_null = {
    NULL,                         /* environment_get */
    NULL,                         /* init */
@@ -30,5 +36,6 @@ const frontend_ctx_driver_t frontend_ctx_null = {
    NULL,                         /* process_events */
    NULL,                         /* exec */
    NULL,                         /* shutdown */
+   frontend_null_get_rating,     /* get_rating */
    "null",
 };

frontend/platform/platform_ps3.c

@@ -454,6 +454,11 @@ static void system_exec(const char *path, bool should_load_game)
    cellSysmoduleUnloadModule(CELL_SYSMODULE_NET);
 }
 
+static int frontend_xdk_get_rating(void)
+{
+   return 10;
+}
+
 const frontend_ctx_driver_t frontend_ctx_ps3 = {
    get_environment_settings,     /* get_environment_settings */
    system_init,                  /* init */
@@ -463,6 +468,7 @@ const frontend_ctx_driver_t frontend_ctx_ps3 = {
    NULL,                         /* process_events */
    system_exec,                  /* exec */
    NULL,                         /* shutdown */
+   frontend_ps3_get_rating,      /* get_rating */
    "ps3",
 #ifdef IS_SALAMANDER
    salamander_init,

frontend/platform/platform_psp.c

@@ -122,6 +122,11 @@ static int psp_process_args(int argc, char *argv[], void *args)
    return 0;
 }
 
+static int frontend_psp_get_rating(void)
+{
+   return 4;
+}
+
 const frontend_ctx_driver_t frontend_ctx_psp = {
    get_environment_settings,     /* get_environment_settings */
    system_init,                  /* init */
@@ -131,6 +136,7 @@ const frontend_ctx_driver_t frontend_ctx_psp = {
    NULL,                         /* process_events */
    NULL,                  	      /* exec */
    NULL,                         /* shutdown */
+   frontend_psp_get_rating,      /* get_rating */
    "psp",
 #ifdef IS_SALAMANDER
    NULL,

frontend/platform/platform_qnx.c

@@ -50,6 +50,13 @@ static void system_shutdown(void)
    bps_shutdown();
 }
 
+static int frontend_qnx_get_rating(void)
+{
+   /* TODO/FIXME - look at unique identifier per device and 
+    * determine rating for some */
+   return -1;
+}
+
 const frontend_ctx_driver_t frontend_ctx_qnx = {
    get_environment_settings,     /* get_environment_settings */
    system_init,                  /* init */
@@ -59,5 +66,6 @@ const frontend_ctx_driver_t frontend_ctx_qnx = {
    NULL,                         /* process_events */
    NULL,                         /* exec */
    system_shutdown,              /* shutdown */
+   frontend_qnx_get_rating,      /* get_rating */
    "qnx",
 };

frontend/platform/platform_xdk.c

@@ -354,6 +354,17 @@ static void system_exec(const char *path, bool should_load_game)
 #endif
 }
 
+static int frontend_xdk_get_rating(void)
+{
+#if defined(_XBOX360)
+   return 11;
+#elif defined(_XBOX1)
+   return 7;
+#else
+   return -1;
+#endif
+}
+
 const frontend_ctx_driver_t frontend_ctx_xdk = {
    get_environment_settings,     /* get_environment_settings */
    system_init,                  /* init */
@@ -363,6 +374,7 @@ const frontend_ctx_driver_t frontend_ctx_xdk = {
    NULL,                         /* process_events */
    system_exec,                  /* exec */
    NULL,                         /* shutdown */
+   frontend_xdk_get_rating,      /* get_rating */
    "xdk",
 #ifdef IS_SALAMANDER
    salamander_init,

libretro.h

@@ -392,7 +392,7 @@ enum retro_mod
                                            //
                                            // This function can be called on a per-game basis,
                                            // as certain games an implementation can play might be
-                                           // particularily demanding.
+                                           // particularly demanding.
                                            // If called, it should be called in retro_load_game().
                                            //
 #define RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY 9