[Metal] implement override for MetalTextureGpu::getCustomAttribute

- Implement method getCustomAttribute for MetalTextureGpu - Take a strong reference to the objective-c id (in this case an id with protocol MTLTexture). Signed-off-by: Rhys Mainwaring <[email protected]>
srmainwaring · Oct 17, 2021 · 11a3adf · 11a3adf
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diff --git a/RenderSystems/Metal/include/OgreMetalTextureGpu.h b/RenderSystems/Metal/include/OgreMetalTextureGpu.h
@@ -102,6 +102,8 @@ namespace Ogre
         id<MTLTexture> getDisplayTextureName(void) const    { return mDisplayTextureName; }
         id<MTLTexture> getFinalTextureName(void) const      { return mFinalTextureName; }
         id<MTLTexture> getMsaaFramebufferName(void) const   { return mMsaaFramebufferName; }
+
+        virtual void getCustomAttribute( IdString name, void *pData ) override;
     };
 
     class _OgreMetalExport MetalTextureGpuRenderTarget : public MetalTextureGpu

diff --git a/RenderSystems/Metal/src/OgreMetalTextureGpu.mm b/RenderSystems/Metal/src/OgreMetalTextureGpu.mm
@@ -385,6 +385,20 @@ of this software and associated documentation files (the "Software"), to deal
             //TODO
         }
     }
+
+    //-----------------------------------------------------------------------------------
+    void MetalTextureGpu::getCustomAttribute( IdString name, void *pData )
+    {
+        if( name == msFinalTextureBuffer )
+        {
+          *(__strong id<MTLTexture>*)pData = mFinalTextureName;
+        }
+        else if( name == msMsaaTextureBuffer )
+        {
+            *(__strong id<MTLTexture>*)pData = mMsaaFramebufferName;
+        }
+    }
+
     //-----------------------------------------------------------------------------------
     //-----------------------------------------------------------------------------------
     //-----------------------------------------------------------------------------------