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				@@ -8,7 +8,7 @@ open class TwoStageOperation: BasicOperation { 
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				     override func internalRenderFunction(_ inputFramebuffer: Framebuffer, textureProperties: [InputTextureProperties]) { 
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				         if inputFramebuffer.size.width == 0 && inputFramebuffer.size.height == 0 { 
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				-            HHZPrint("frame buffer data error") 
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				+            BFLog(message: "frame buffer data error") 
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				             return 
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				         } 
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