AtmosphereNpr: recreate const buffer on device lost

OGRECave · Nov 20, 2024 · d48c6aa · d48c6aa
1 parent 7bad36d
commit d48c6aa
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Showing 2 changed files with 24 additions and 1 deletion.
diff --git a/Components/Atmosphere/include/OgreAtmosphereNpr.h b/Components/Atmosphere/include/OgreAtmosphereNpr.h
@@ -32,6 +32,7 @@ THE SOFTWARE.
 
 #include "OgreAtmosphereComponent.h"
 #include "OgreColourValue.h"
+#include "OgreRenderSystem.h"
 #include "OgreSharedPtr.h"
 #include "OgreVector3.h"
 
@@ -59,7 +60,8 @@ namespace Ogre
 
         A PBR solution is iterative and requires more resources.
     */
-    class _OgreAtmosphereExport AtmosphereNpr final : public AtmosphereComponent
+    class _OgreAtmosphereExport AtmosphereNpr final : public AtmosphereComponent,
+                                                      public RenderSystem::Listener
     {
     public:
         struct Preset
@@ -202,6 +204,9 @@ namespace Ogre
         AtmosphereNpr( VaoManager *vaoManager );
         ~AtmosphereNpr() override;
 
+        /// @see RenderSystem::Listener
+        void eventOccurred( const String &eventName, const NameValuePairList *parameters ) override;
+
         void setSky( Ogre::SceneManager *sceneManager, bool bEnabled );
         void destroySky( Ogre::SceneManager *sceneManager );
 

diff --git a/Components/Atmosphere/src/OgreAtmosphereNpr.cpp b/Components/Atmosphere/src/OgreAtmosphereNpr.cpp
@@ -77,10 +77,14 @@ namespace Ogre
     {
         mHlmsBuffer = vaoManager->createConstBuffer( sizeof( AtmoSettingsGpu ), BT_DEFAULT, 0, false );
         createMaterial();
+
+        RenderSystem::addSharedListener( this );
     }
     //-------------------------------------------------------------------------
     AtmosphereNpr::~AtmosphereNpr()
     {
+        RenderSystem::removeSharedListener( this );
+
         std::map<Ogre::SceneManager *, Rectangle2D *>::const_iterator itor = mSkies.begin();
         std::map<Ogre::SceneManager *, Rectangle2D *>::const_iterator endt = mSkies.end();
 
@@ -109,6 +113,20 @@ namespace Ogre
         mHlmsBuffer = 0;
     }
     //-------------------------------------------------------------------------
+    void AtmosphereNpr::eventOccurred( const String &eventName, const NameValuePairList *parameters )
+    {
+        if( eventName == "DeviceLost" )
+        {
+            mVaoManager->destroyConstBuffer( mHlmsBuffer );
+            mHlmsBuffer = 0;
+        }
+        else if( eventName == "DeviceRestored" )
+        {
+            mHlmsBuffer =
+                mVaoManager->createConstBuffer( sizeof( AtmoSettingsGpu ), BT_DEFAULT, 0, false );
+        }
+    }
+    //-------------------------------------------------------------------------
     void AtmosphereNpr::createMaterial()
     {
         OGRE_ASSERT_LOW( !mMaterial );