From e6f7b709c4dedbd3eceb6dce1988cd9fd27385c0 Mon Sep 17 00:00:00 2001
From: Themaister <maister@archlinux.us>
Date: Thu, 4 Apr 2013 14:13:42 +0200
Subject: [PATCH] Check for updated values, log options.

---
 core_options.c                |  9 +++++++++
 libretro-test/libretro-test.c | 29 +++++++++++++++++++----------
 2 files changed, 28 insertions(+), 10 deletions(-)

diff --git a/core_options.c b/core_options.c
index 50ef1ed921..d9f10906cb 100644
--- a/core_options.c
+++ b/core_options.c
@@ -110,6 +110,15 @@ static bool parse_variable(core_option_manager_t *opt, size_t index, const struc
    }
 
    free(value);
+
+   RARCH_LOG("Core option:\n");
+   RARCH_LOG("\tDescription: %s\n", option->desc);
+   RARCH_LOG("\tKey: %s\n", option->key);
+   RARCH_LOG("\tCurrent value: %s\n", core_option_get_val(opt, index));
+   RARCH_LOG("\tPossible values:\n");
+   for (size_t i = 0; i < option->vals->size; i++)
+      RARCH_LOG("\t\t%s\n", option->vals->elems[i].data);
+
    return true;
 }
 
diff --git a/libretro-test/libretro-test.c b/libretro-test/libretro-test.c
index 1403fbef31..8819cee086 100644
--- a/libretro-test/libretro-test.c
+++ b/libretro-test/libretro-test.c
@@ -206,11 +206,29 @@ static void render_audio(void)
    phase %= 100;
 }
 
+static void check_variables(void)
+{
+   struct retro_variable var = {0};
+   var.key = "test_opt0";
+   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
+      fprintf(stderr, "Key -> Val: %s -> %s.\n", var.key, var.value);
+   var.key = "test_opt1";
+   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
+      fprintf(stderr, "Key -> Val: %s -> %s.\n", var.key, var.value);
+   var.key = "test_opt2";
+   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
+      fprintf(stderr, "Key -> Val: %s -> %s.\n", var.key, var.value);
+}
+
 void retro_run(void)
 {
    update_input();
    render_checkered();
    render_audio();
+
+   bool updated = false;
+   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated)
+      check_variables();
 }
 
 static void keyboard_cb(bool down, unsigned keycode,
@@ -242,16 +260,7 @@ bool retro_load_game(const struct retro_game_info *info)
    struct retro_keyboard_callback cb = { keyboard_cb };
    environ_cb(RETRO_ENVIRONMENT_SET_KEYBOARD_CALLBACK, &cb);
 
-   struct retro_variable var = {0};
-   var.key = "test_opt0";
-   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
-      fprintf(stderr, "Key -> Val: %s -> %s.\n", var.key, var.value);
-   var.key = "test_opt1";
-   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
-      fprintf(stderr, "Key -> Val: %s -> %s.\n", var.key, var.value);
-   var.key = "test_opt2";
-   if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
-      fprintf(stderr, "Key -> Val: %s -> %s.\n", var.key, var.value);
+   check_variables();
 
    (void)info;
    return true;