From 856f69113d7e5422e46db2ae1d86336e5640efd1 Mon Sep 17 00:00:00 2001
From: chyyran <ronny6993@gmail.com>
Date: Fri, 13 Sep 2024 00:47:05 -0400
Subject: [PATCH] rt(mtl): don't make mipmapper for history if not needed

---
 librashader-runtime-mtl/src/filter_chain.rs | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/librashader-runtime-mtl/src/filter_chain.rs b/librashader-runtime-mtl/src/filter_chain.rs
index 24df008..2dad5ff 100644
--- a/librashader-runtime-mtl/src/filter_chain.rs
+++ b/librashader-runtime-mtl/src/filter_chain.rs
@@ -206,10 +206,11 @@ impl FilterChainMetal {
         cmd: &ProtocolObject<dyn MTLCommandBuffer>,
         input: &ProtocolObject<dyn MTLTexture>,
     ) -> error::Result<()> {
-        let mipmapper = cmd
-            .blitCommandEncoder()
-            .ok_or(FilterChainError::FailedToCreateCommandBuffer)?;
+
         if let Some(mut back) = self.history_framebuffers.pop_back() {
+            let mipmapper = cmd
+                .blitCommandEncoder()
+                .ok_or(FilterChainError::FailedToCreateCommandBuffer)?;
             if back.texture.height() != input.height()
                 || back.texture.width() != input.width()
                 || input.pixelFormat() != back.texture.pixelFormat()
@@ -228,8 +229,6 @@ impl FilterChainMetal {
             back.copy_from(&mipmapper, input)?;
             mipmapper.endEncoding();
             self.history_framebuffers.push_front(back);
-        } else {
-            mipmapper.endEncoding();
         }
         Ok(())
     }