CMakeLists.txt for GDK backend

[rbratta]

I am a registered Xbox developer and I want to build FSR1 and FSR3 for GDK backend. To do this, I copied the AMDTK\fidelityfx\src\backends\gdk directory (from October 2024 GDKX samples) to the sdk\src\backends directory and then started the CMake generation step with the following command: cmake.exe -S sdk -B _build\scarlett -D FFX_API_BACKEND=GDK_SCARLETT_X64 -D FFX_FSR1=ON -D FFX_FSR3=ON. But CMake (of course) gives an error (due to the add_subdirectory(${FFX_SRC_BACKENDS_PATH}/gdk) statement) because there is no CMakeLists.txt in sdk\src\backends\gdk. Where should I find that file? Do I have to write it by myself?

[rbratta]

After some trial and error, I seem to have been able to compile the library for GDK by copying the missing CMake files from the DX12 backend and then enabling root signature embedding (as in this patch). Is this the supposed way to proceed?