VideoCommon: support dynamically updating game mods at runtime

1 files changed, 31 insertions, 0 deletions

diff --git a/Source/Core/VideoCommon/RenderBase.cpp b/Source/Core/VideoCommon/RenderBase.cpp
index b13f74542c..412461d409 100644
--- a/Source/Core/VideoCommon/RenderBase.cpp
+++ b/Source/Core/VideoCommon/RenderBase.cpp
@@ -136,6 +136,22 @@ bool Renderer::Initialize()
     return false;
   }
 
+  if (g_ActiveConfig.bGraphicMods)
+  {
+    // If a config change occurred in a previous session,
+    // remember the old change count value.  By setting
+    // our current change count to the old value, we
+    // avoid loading the stale data when we
+    // check for config changes.
+    const u32 old_game_mod_changes = g_ActiveConfig.graphics_mod_config ?
+                                         g_ActiveConfig.graphics_mod_config->GetChangeCount() :
+                                         0;
+    g_ActiveConfig.graphics_mod_config = GraphicsModGroupConfig(SConfig::GetInstance().GetGameID());
+    g_ActiveConfig.graphics_mod_config->Load();
+    g_ActiveConfig.graphics_mod_config->SetChangeCount(old_game_mod_changes);
+    m_graphics_mod_manager.Load(*g_ActiveConfig.graphics_mod_config);
+  }
+
   return true;
 }
 
@@ -466,12 +482,27 @@ void Renderer::CheckForConfigChanges()
   const bool old_force_filtering = g_ActiveConfig.bForceFiltering;
   const bool old_vsync = g_ActiveConfig.bVSyncActive;
   const bool old_bbox = g_ActiveConfig.bBBoxEnable;
+  const u32 old_game_mod_changes =
+      g_ActiveConfig.graphics_mod_config ? g_ActiveConfig.graphics_mod_config->GetChangeCount() : 0;
+  const bool old_graphics_mods_enabled = g_ActiveConfig.bGraphicMods;
 
   UpdateActiveConfig();
   FreeLook::UpdateActiveConfig();
 
   g_freelook_camera.SetControlType(FreeLook::GetActiveConfig().camera_config.control_type);
 
+  if (g_ActiveConfig.bGraphicMods && !old_graphics_mods_enabled)
+  {
+    g_ActiveConfig.graphics_mod_config = GraphicsModGroupConfig(SConfig::GetInstance().GetGameID());
+    g_ActiveConfig.graphics_mod_config->Load();
+  }
+
+  if (g_ActiveConfig.graphics_mod_config &&
+      (old_game_mod_changes != g_ActiveConfig.graphics_mod_config->GetChangeCount()))
+  {
+    m_graphics_mod_manager.Load(*g_ActiveConfig.graphics_mod_config);
+  }
+
   // Update texture cache settings with any changed options.
   g_texture_cache->OnConfigChanged(g_ActiveConfig);