libretro: add graphics mod option

Author: cscd98

Source/Core/DolphinLibretro/Boot.cpp

@@ -469,6 +469,9 @@ bool retro_load_game(const struct retro_game_info* game)
   if (Common::is_uwp())
     Config::SetBase(Config::GFX_SHADER_CACHE, false);
 
+  Config::SetBase(Config::GFX_MODS_ENABLE,
+    Libretro::GetOption<bool>(gfx_settings::MODS_ENABLE, /*def=*/false));
+
   // Graphics.Enhancements
   Config::SetBase(Config::GFX_ENHANCE_FORCE_TEXTURE_FILTERING,
                   static_cast<TextureFilteringMode>(

Source/Core/DolphinLibretro/Common/Options.cpp

@@ -1030,6 +1030,20 @@ static struct retro_core_option_v2_definition option_defs[] = {
     },
     "disabled"
   },
+  {
+    Libretro::Options::gfx_settings::MODS_ENABLE,
+    "Graphics > Settings > Enable Mods",
+    "Enable Mods",
+    "Loads graphic mods from User/Load/GraphicsMods.",
+    nullptr,
+    CATEGORY_GFX_SETTINGS,
+    {
+      { "disabled", nullptr },
+      { "enabled",  nullptr },
+      { nullptr, nullptr }
+    },
+    "disabled"
+  },
 
   // ========== Graphics.Enhancements ==========
   {

Source/Core/DolphinLibretro/Common/Options.h

@@ -233,6 +233,7 @@ namespace gfx_settings {
   constexpr const char ENABLE_PIXEL_LIGHTING[] = "dolphin_pixel_lighting";
   constexpr const char FAST_DEPTH_CALCULATION[] = "dolphin_fast_depth_calculation";
   constexpr const char DISABLE_FOG[] = "dolphin_disable_fog";
+  constexpr const char MODS_ENABLE[] = "dolphin_mods_enabled";
 }  // namespace gfx_settings
 
 // ======================================================