From 60640be5e811ada33e86d7345f895d3cd067907f Mon Sep 17 00:00:00 2001
From: Powei Feng <powei@google.com>
Date: Wed, 12 Mar 2025 14:47:52 -0700
Subject: [PATCH] vk: fix generateMipmaps level (#8495)

The level counting was off by one.

FIXES=400710879
---
 filament/backend/src/vulkan/VulkanDriver.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/filament/backend/src/vulkan/VulkanDriver.cpp b/filament/backend/src/vulkan/VulkanDriver.cpp
index 5db4251033..7958c67def 100644
--- a/filament/backend/src/vulkan/VulkanDriver.cpp
+++ b/filament/backend/src/vulkan/VulkanDriver.cpp
@@ -1266,10 +1266,9 @@ void VulkanDriver::generateMipmaps(Handle<HwTexture> th) {
             mBlitter.blit(VK_FILTER_LINEAR, dst, dstOffsets, src, srcOffsets);
         }
 
-        level++;
         srcw = dstw;
         srch = dsth;
-    } while ((srcw > 1 || srch > 1) && level < t->levels);
+    } while ((srcw > 1 || srch > 1) && ++level < t->levels - 1);
 }
 
 void VulkanDriver::compilePrograms(CompilerPriorityQueue priority,