Save shader parameters.

gtk/src/gtk_config.cpp

@@ -334,7 +334,7 @@ Snes9xConfig::save_config_file (void)
     xml_out_int (xml, "force_inverted_byte_order", force_inverted_byte_order);
     xml_out_int (xml, "multithreading", multithreading);
     xml_out_string (xml, "last_directory", last_directory);
-    xml_out_string (xml, "last_directory", last_shader_directory);
+    xml_out_string (xml, "last_shader_directory", last_shader_directory);
     xml_out_string (xml, "sram_directory", sram_directory);
     xml_out_string (xml, "savestate_directory", savestate_directory);
     xml_out_string (xml, "cheat_directory", cheat_directory);

gtk/src/gtk_display_driver.h

@@ -16,7 +16,8 @@ class S9xDisplayDriver
         virtual uint16 *get_current_buffer (void) = 0;
         virtual void push_buffer (uint16 *src) = 0;
         virtual void reconfigure (int width, int height) = 0;
-        virtual void *get_parameters () = 0;
+        virtual void *get_parameters (void) = 0;
+        virtual void save (void) = 0;
 
         /* Namespaced sizing constants */
         static const int image_width = 1024;

gtk/src/gtk_display_driver_gtk.h

@@ -18,6 +18,7 @@ class S9xGTKDisplayDriver : public S9xDisplayDriver
         void push_buffer (uint16 *src);
         void reconfigure (int width, int height);
         void *get_parameters (void) { return NULL; }
+        void save (void) { }
 
     private:
         void clear (void);

gtk/src/gtk_display_driver_opengl.cpp

@@ -282,6 +282,17 @@ S9xOpenGLDisplayDriver::get_parameters(void)
     return NULL;
 }
 
+void
+S9xOpenGLDisplayDriver::save (void)
+{
+    if (using_glsl_shaders && glsl_shader)
+    {
+        glsl_shader->save();
+    }
+
+    return;
+}
+
 void
 S9xOpenGLDisplayDriver::clear_buffers (void)
 {

gtk/src/gtk_display_driver_opengl.h

@@ -40,6 +40,7 @@ class S9xOpenGLDisplayDriver : public S9xDisplayDriver
         void push_buffer (uint16 *src);
         void reconfigure (int width, int height);
         void *get_parameters (void);
+        void save (void);
         static int query_availability (void);
 
     private:

gtk/src/gtk_display_driver_xv.h

@@ -25,6 +25,7 @@ class S9xXVDisplayDriver : public S9xDisplayDriver
         void push_buffer (uint16 *src);
         void reconfigure (int width, int height);
         void *get_parameters (void) { return NULL; }
+        void save (void) { }
         static int query_availability (void);
 
     private:

gtk/src/gtk_preferences.cpp

@@ -493,8 +493,11 @@ event_auto_input_rate_toggled (GtkToggleButton *togglebutton, gpointer data)
 static void
 event_shader_parameters (GtkButton *widget, gpointer data)
 {
+    S9xDisplayDriver *driver = S9xDisplayGetDriver ();
+    Snes9xPreferences *preferences = (Snes9xPreferences *) data;
+
 #ifdef USE_OPENGL
-    if (!S9xDisplayGetDriver () || !S9xDisplayGetDriver ()->get_parameters () || !gtk_shader_parameters_dialog (top_level->get_window ()))
+    if (!driver || !driver->get_parameters () || !gtk_shader_parameters_dialog (top_level->get_window ()))
     {
         GtkWidget *dialog;
         dialog = gtk_message_dialog_new (top_level->get_window(),
@@ -509,6 +512,12 @@ event_shader_parameters (GtkButton *widget, gpointer data)
 
         return;
     }
+    else
+    {
+        driver->save();
+        preferences->set_entry_text ("fragment_shader", preferences->config->fragment_shader);
+    }
+
 #endif
 }