cmake_minimum_required(VERSION 3.24)
project(QubicTeachingSamples LANGUAGES CXX)
if(NOT WIN32)
  message(FATAL_ERROR "These native DirectX 12 samples require Windows and the Windows SDK.")
endif()
set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
find_program(DXC_EXECUTABLE NAMES dxc REQUIRED)
foreach(sample IN ITEMS triangle texture)
  if(sample STREQUAL "texture")
    set(textured 1)
  else()
    set(textured 0)
  endif()
  set(shader_dir "${CMAKE_CURRENT_BINARY_DIR}/shaders/${sample}")
  foreach(stage IN ITEMS vs ps)
    string(TOUPPER "${stage}" entry_prefix)
    add_custom_command(
      OUTPUT "${shader_dir}/${stage}.cso"
      COMMAND ${CMAKE_COMMAND} -E make_directory "${shader_dir}"
      COMMAND "${DXC_EXECUTABLE}" -T ${stage}_6_0 -E ${entry_prefix}Main
        -D TEXTURED=${textured} -Zpr -Ges
        -Fo "${shader_dir}/${stage}.cso"
        "${CMAKE_CURRENT_SOURCE_DIR}/Shaders/Scene.hlsl"
      DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/Shaders/Scene.hlsl"
      VERBATIM)
  endforeach()
  add_custom_target(${sample}_shaders
    COMMAND ${CMAKE_COMMAND} -E copy_directory "${shader_dir}" "$<TARGET_FILE_DIR:qubic_${sample}>/shaders/${sample}"
    DEPENDS "${shader_dir}/vs.cso" "${shader_dir}/ps.cso"
    VERBATIM)
  add_executable(qubic_${sample} WIN32 main.cpp)
  add_dependencies(qubic_${sample} ${sample}_shaders)
  target_compile_definitions(qubic_${sample} PRIVATE UNICODE _UNICODE NOMINMAX WIN32_LEAN_AND_MEAN TEXTURED=${textured})
  target_link_libraries(qubic_${sample} PRIVATE d3d12 dxgi windowscodecs ole32 shell32)
  if(MSVC)
    target_compile_options(qubic_${sample} PRIVATE /W4 /permissive- /utf-8)
  endif()
endforeach()