D3D12Device: Transition all uploaded subresources

Use an all-subresource barrier after initial uploads so tracked state matches
every texture slice and mip level.

src/util/d3d12_texture.cpp

@@ -68,7 +68,7 @@ std::unique_ptr<GPUTexture> D3D12Device::CreateTexture(u32 width, u32 height, u3
     case GPUTexture::Type::Texture:
     {
       desc.Flags = D3D12_RESOURCE_FLAG_NONE;
-      state = D3D12_RESOURCE_STATE_COPY_DEST;
+      state = data ? D3D12_RESOURCE_STATE_COPY_DEST : D3D12_RESOURCE_STATE_PIXEL_SHADER_RESOURCE;
     }
     break;
 
@@ -182,9 +182,7 @@ std::unique_ptr<GPUTexture> D3D12Device::CreateTexture(u32 width, u32 height, u3
     if (type == GPUTexture::Type::Texture)
     {
       // resource barrier must be in the same command buffer as the upload
-      tex->TransitionSubresourceToState(GetInitCommandList(), 0u, 0u, D3D12_RESOURCE_STATE_COPY_DEST,
-                                        D3D12_RESOURCE_STATE_PIXEL_SHADER_RESOURCE);
-      tex->m_resource_state = D3D12_RESOURCE_STATE_PIXEL_SHADER_RESOURCE;
+      tex->TransitionToState(GetInitCommandList(), D3D12_RESOURCE_STATE_PIXEL_SHADER_RESOURCE);
     }
   }