Installation:

Prerequisites:

• cmake
• gcc-9 and g++-9
• Vulkan SDK
  • Download the latest Vulkan SDK tarball from https://vulkan.lunarg.com/sdk/home and extract it using:
    wget https://sdk.lunarg.com/sdk/download/1.3.280.1/linux/vulkansdk-linux-x86_64-1.3.280.1.tar.xz && tar -xf vulkansdk-linux-x86_64-1.3.280.1.tar.xz && rm vulkansdk-linux-x86_64-1.3.280.1.tar.xz

Steps:

1. Clone the repository with all submodules (requires an SSH key be added to your account):

   git clone --recursive git@github.com:upscayl/upscayl-ncnn.git

   cd upscayl-ncnn or if you've already cloned: git submodule update --init --recursive

2. Set up environment variables: export CC="gcc-9" CXX="g++-9"

3. export VULKAN_SDK=/path where you extracted your vulkan SDK -> 1.3.280.1/x86_64

4. Make a new build directory and cd into it: mkdir build && cd build

5. Now, build : cmake ../src

6. cmake --build . -j 2 Replace the -j 2 with the number of cores you want to use to compile

MacOS

Prerequisites:

• openmp installed, install with brew install libomp
• cmake installed, install with brew install cmake
• Install VulkanSDK from the website and it should be in /Users/youruser/VulkanSDK/<version> normally if you did not change anything

Steps:

After making the build directory, open it and use the following cmake command (replace the paths from your system)

mkdir build-x86_64 && cd build-x86_64
cmake -D USE_STATIC_MOLTENVK=ON -D CMAKE_OSX_ARCHITECTURES="x86_64" -D OpenMP_C_FLAGS="-Xclang -fopenmp" -D OpenMP_CXX_FLAGS="-Xclang -fopenmp" -D OpenMP_C_LIB_NAMES="libomp" -D OpenMP_CXX_LIB_NAMES="libomp" -D OpenMP_libomp_LIBRARY="/opt/homebrew/opt/libomp/lib/libomp.a" -D Vulkan_INCLUDE_DIR="./VulkanSDK/*/MoltenVK/include" -D Vulkan_LIBRARY=./VulkanSDK/*/MoltenVK/MoltenVK.xcframework/macos-arm64_x86_64/libMoltenVK.a ../src
cmake --build . -j 8

For arm processors, the build command will only change to

mkdir build-arm64 && cd build-arm64
cmake -D USE_STATIC_MOLTENVK=ON -D CMAKE_OSX_ARCHITECTURES="arm64" -D CMAKE_CROSSCOMPILING=ON -D CMAKE_SYSTEM_PROCESSOR=arm64 -D OpenMP_C_FLAGS="-Xclang -fopenmp" -D OpenMP_CXX_FLAGS="-Xclang -fopenmp -I/opt/homebrew/opt/libomp/include" -D OpenMP_C_LIB_NAMES="libomp" -D OpenMP_CXX_LIB_NAMES="libomp" -D OpenMP_libomp_LIBRARY="/opt/homebrew/opt/libomp/lib/libomp.a" -D Vulkan_INCLUDE_DIR="../VulkanSDK/1.3.261.1/MoltenVK/include" -D Vulkan_LIBRARY="../VulkanSDK/1.3.261.1/MoltenVK/MoltenVK.xcframework/macos-arm64_x86_64/libMoltenVK.a" ../src
cmake --build . -j 8