feat(d3d11): hint backend a texture is ShaderReadonly

Author: 3Shain

src/d3d11/d3d11_texture_device.cpp

@@ -370,6 +370,8 @@ HRESULT CreateDeviceTextureInternal(MTLD3D11Device *pDevice,
     flags.set(TextureAllocationFlag::GpuPrivate);
     if (finalDesc.Usage == D3D11_USAGE_IMMUTABLE)
       flags.set(TextureAllocationFlag::GpuReadonly);
+    if (!(finalDesc.BindFlags & (D3D11_BIND_UNORDERED_ACCESS | D3D11_BIND_RENDER_TARGET | D3D11_BIND_DEPTH_STENCIL)))
+      flags.set(TextureAllocationFlag::ShaderReadonly);
     flags.set(TextureAllocationFlag::Shared);
     auto allocation = texture->allocate(flags);
 
@@ -421,6 +423,8 @@ HRESULT CreateDeviceTextureInternal(MTLD3D11Device *pDevice,
 
   Flags<TextureAllocationFlag> flags;
   flags.set(finalDesc.CPUAccessFlags ? TextureAllocationFlag::GpuManaged : TextureAllocationFlag::GpuPrivate);
+  if (!(finalDesc.BindFlags & (D3D11_BIND_UNORDERED_ACCESS | D3D11_BIND_RENDER_TARGET | D3D11_BIND_DEPTH_STENCIL)))
+    flags.set(TextureAllocationFlag::ShaderReadonly);
   if (finalDesc.Usage == D3D11_USAGE_IMMUTABLE)
     flags.set(TextureAllocationFlag::GpuReadonly);
   if (single_subresource && (finalDesc.BindFlags & D3D11_BIND_DEPTH_STENCIL)) {

src/d3d11/d3d11_texture_dynamic.cpp

@@ -138,6 +138,7 @@ HRESULT CreateDynamicTextureInternal(MTLD3D11Device *pDevice,
   auto texture = Rc<Texture>(new Texture(info, pDevice->GetMTLDevice()));
   Flags<TextureAllocationFlag> flags;
   flags.set(TextureAllocationFlag::GpuManaged);
+  flags.set(TextureAllocationFlag::ShaderReadonly);
   if (pInitialData) {
     auto default_allocation = texture->allocate(flags);
     InitializeTextureData(pDevice, default_allocation->texture(), finalDesc, pInitialData);

src/d3d11/d3d11_texture_linear.cpp

@@ -47,6 +47,7 @@ TDynamicLinearTexture(
       bytes_per_row_(bytes_per_row) {
     this->texture_ = new Texture(bytes_per_image, bytes_per_row, descriptor, device->GetMTLDevice());
     Flags<TextureAllocationFlag> flags;
+    flags.set(TextureAllocationFlag::ShaderReadonly);
     if (!this->m_parent->IsTraced() && pDesc->Usage == D3D11_USAGE_DYNAMIC)
       flags.set(TextureAllocationFlag::CpuWriteCombined);
     // if (pDesc->Usage != D3D11_USAGE_DEFAULT)