From 414c650550654c0fdff8312d2cb79098d1af2ce4 Mon Sep 17 00:00:00 2001
From: Wojtek Figat <wojtek@figat.pl>
Date: Wed, 4 Mar 2026 22:00:50 +0100
Subject: [PATCH] Fixes for WebGPU

---
 Source/Engine/Graphics/PixelFormatExtensions.h              | 2 +-
 Source/Engine/GraphicsDevice/WebGPU/GPUContextWebGPU.cpp    | 6 ++++++
 .../Engine/GraphicsDevice/WebGPU/GPUPipelineStateWebGPU.cpp | 4 ++++
 3 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/Source/Engine/Graphics/PixelFormatExtensions.h b/Source/Engine/Graphics/PixelFormatExtensions.h
index bfe5ff692..27fc812ca 100644
--- a/Source/Engine/Graphics/PixelFormatExtensions.h
+++ b/Source/Engine/Graphics/PixelFormatExtensions.h
@@ -159,7 +159,7 @@ public:
     API_FUNCTION() static int32 ComputeComponentsCount(PixelFormat format);
 
     /// <summary>
-    /// Computes the amount of pixels per-axis stored in the a single block of the format (eg. 4 for BC-family). Returns 1 for uncompressed formats.
+    /// Computes the amount of pixels per-axis stored in a single block of the format (eg. 4 for BC-family). Returns 1 for uncompressed formats.
     /// </summary>
     /// <param name="format">The <see cref="PixelFormat"/>.</param>
     /// <returns>The block pixels count.</returns>
diff --git a/Source/Engine/GraphicsDevice/WebGPU/GPUContextWebGPU.cpp b/Source/Engine/GraphicsDevice/WebGPU/GPUContextWebGPU.cpp
index 367b939c8..5207cc772 100644
--- a/Source/Engine/GraphicsDevice/WebGPU/GPUContextWebGPU.cpp
+++ b/Source/Engine/GraphicsDevice/WebGPU/GPUContextWebGPU.cpp
@@ -616,6 +616,12 @@ void GPUContextWebGPU::UpdateTexture(GPUTexture* texture, int32 arrayIndex, int3
     int32 mipWidth, mipHeight, mipDepth;
     texture->GetMipSize(mipIndex, mipWidth, mipHeight, mipDepth);
 
+    const int32 blockSize = PixelFormatExtensions::ComputeBlockSize(textureWebGPU->Format());
+    mipWidth = Math::Max(mipWidth, blockSize);
+    mipHeight = Math::Max(mipHeight, blockSize);
+    if (textureWebGPU->Dimensions() == TextureDimensions::VolumeTexture)
+        mipDepth = Math::Max(mipDepth, blockSize);
+
     WGPUTexelCopyTextureInfo copyInfo = WGPU_TEXEL_COPY_TEXTURE_INFO_INIT;
     copyInfo.texture = textureWebGPU->Texture;
     copyInfo.mipLevel = mipIndex;
diff --git a/Source/Engine/GraphicsDevice/WebGPU/GPUPipelineStateWebGPU.cpp b/Source/Engine/GraphicsDevice/WebGPU/GPUPipelineStateWebGPU.cpp
index 467a76ef3..fcae89cb5 100644
--- a/Source/Engine/GraphicsDevice/WebGPU/GPUPipelineStateWebGPU.cpp
+++ b/Source/Engine/GraphicsDevice/WebGPU/GPUPipelineStateWebGPU.cpp
@@ -325,6 +325,8 @@ WGPUComputePipeline GPUShaderProgramCSWebGPU::GetPipeline(WGPUDevice device, con
 #endif
     if (log)
         LOG(Info, "[WebGPU] GetPipeline: '{}'", String(_name));
+#else
+    const bool log = false;
 #endif
 
     // Create layout bind group
@@ -635,6 +637,8 @@ void GPUPipelineStateWebGPU::InitLayout(const GPUContextBindingsWebGPU& bindings
 #else
     const bool log = true;
 #endif
+#else
+    const bool log = false;
 #endif
 
     // Count the biggest bind group entries (for all shaders) to allocate reused memory