WGPU: Supply initial data when creating buffers

This helps to address shader-slang/slang#5222
aleino-nv · Nov 1, 2024 · db0a1e8 · db0a1e8
1 parent 9d292cb
commit db0a1e8
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/wgpu/wgpu-shader-object.cpp b/src/wgpu/wgpu-shader-object.cpp
@@ -402,7 +402,8 @@ Result ShaderObjectImpl::_ensureOrdinaryDataBufferCreatedIfNeeded(
         bufferDesc.defaultState = ResourceState::ConstantBuffer;
         bufferDesc.memoryType = MemoryType::DeviceLocal;
         ComPtr<IBuffer> buffer;
-        SLANG_RETURN_ON_FAIL(encoder->m_device->createBuffer(bufferDesc, nullptr, buffer.writeRef()));
+        void * initData = m_constantBufferData.empty() ? nullptr : m_constantBufferData.data();
+        SLANG_RETURN_ON_FAIL(encoder->m_device->createBuffer(bufferDesc, initData, buffer.writeRef()));
         m_constantBuffer = checked_cast<BufferImpl*>(buffer.get());
     }