kc3-lang/angle/src/libANGLE/renderer/metal/shaders/gen_mtl_internal_shaders.py

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• Hash : fe26bae4
  Author :
  Date : 2019-10-29T18:38:53
  

  Metal backend implementation pt 2
  
  This is without Metal specific shader translator implemented yet.
  
  Bug: angleproject:2634
  Change-Id: I95d589442251c9ba111bd05a2dc379a36739046c
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1855069
  Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/renderer/metal/shaders/gen_mtl_internal_shaders.py

• #!/usr/bin/python
  # Copyright 2019 The ANGLE Project Authors. All rights reserved.
  # Use of this source code is governed by a BSD-style license that can be
  # found in the LICENSE file.
  #
  # gen_mtl_internal_shaders.py:
  #   Code generation for Metal backend's default shaders.
  #   NOTE: don't run this script directly. Run scripts/run_code_generation.py.
  
  import os
  import sys
  import json
  from datetime import datetime
  
  template_header_boilerplate = """// GENERATED FILE - DO NOT EDIT.
  // Generated by {script_name}
  //
  // Copyright {copyright_year} The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  """
  
  
  def main():
      # auto_script parameters.
      if len(sys.argv) > 1:
          inputs = [
              'master_source.metal', 'blit.metal', 'clear.metal', 'gen_indices.metal', 'common.h'
          ]
          outputs = ['compiled/mtl_default_shaders.inc', 'mtl_default_shaders_src_autogen.inc']
  
          if sys.argv[1] == 'inputs':
              print ','.join(inputs)
          elif sys.argv[1] == 'outputs':
              print ','.join(outputs)
          else:
              print('Invalid script parameters')
              return 1
          return 0
  
      os.chdir(sys.path[0])
  
      print('Compiling macos version of default shaders ...')
      os.system(
          'xcrun -sdk macosx metal master_source.metal -mmacosx-version-min=10.13 -c -o compiled/default.air'
      )
      os.system('xcrun -sdk macosx metallib compiled/default.air -o compiled/default.metallib')
  
      print('Compiling ios version of default shaders ...')
      os.system(
          'xcrun -sdk iphoneos metal master_source.metal -mios-version-min=11.0 -c -o compiled/default.ios.air'
      )
      os.system(
          'xcrun -sdk iphoneos metallib compiled/default.ios.air -o compiled/default.ios.metallib')
  
      print('Compiling ios simulator version of default shaders ...')
      os.system(
          'xcrun -sdk iphonesimulator metal master_source.metal -c -o compiled/default.ios_sim.air')
      os.system(
          'xcrun -sdk iphonesimulator metallib compiled/default.ios_sim.air -o compiled/default.ios_sim.metallib'
      )
  
      boilerplate_code = template_header_boilerplate.format(
          script_name=sys.argv[0], copyright_year=datetime.today().year)
  
      os.system("echo \"{0}\" > compiled/mtl_default_shaders.inc".format(boilerplate_code))
      os.system(
          'echo "// Compiled binary for Metal default shaders.\n\n" >> compiled/mtl_default_shaders.inc'
      )
      os.system('echo "#include <TargetConditionals.h>\n\n" >> compiled/mtl_default_shaders.inc')
  
      # Mac version
      os.system(
          'echo "#if TARGET_OS_OSX || TARGET_OS_MACCATALYST\n" >> compiled/mtl_default_shaders.inc')
  
      os.system('echo "constexpr" >> compiled/mtl_default_shaders.inc')
      os.system('xxd -i compiled/default.metallib >> compiled/mtl_default_shaders.inc')
  
      # iOS simulator version
      os.system(
          'echo "\n#elif TARGET_OS_SIMULATOR  // TARGET_OS_OSX || TARGET_OS_MACCATALYST\n" >> compiled/mtl_default_shaders.inc'
      )
  
      os.system(
          'echo "#define compiled_default_metallib     compiled_default_ios_sim_metallib" >> compiled/mtl_default_shaders.inc'
      )
      os.system(
          'echo "#define compiled_default_metallib_len compiled_default_ios_sim_metallib_len\n" >> compiled/mtl_default_shaders.inc'
      )
      os.system('echo "constexpr" >> compiled/mtl_default_shaders.inc')
      os.system('xxd -i compiled/default.ios_sim.metallib >> compiled/mtl_default_shaders.inc')
  
      # iOS version
      os.system(
          'echo "\n#elif TARGET_OS_IOS  // TARGET_OS_OSX || TARGET_OS_MACCATALYST\n" >> compiled/mtl_default_shaders.inc'
      )
  
      os.system(
          'echo "#define compiled_default_metallib     compiled_default_ios_metallib" >> compiled/mtl_default_shaders.inc'
      )
      os.system(
          'echo "#define compiled_default_metallib_len compiled_default_ios_metallib_len\n" >> compiled/mtl_default_shaders.inc'
      )
      os.system('echo "constexpr" >> compiled/mtl_default_shaders.inc')
      os.system('xxd -i compiled/default.ios.metallib >> compiled/mtl_default_shaders.inc')
  
      os.system(
          'echo "#endif  // TARGET_OS_OSX || TARGET_OS_MACCATALYST\n" >> compiled/mtl_default_shaders.inc'
      )
  
      # Write full source string for debug purpose
      os.system("echo \"{0}\" > mtl_default_shaders_src_autogen.inc".format(boilerplate_code))
      os.system(
          'echo "// C++ string version of Metal default shaders for debug purpose.\n\n" >> mtl_default_shaders_src_autogen.inc'
      )
      os.system(
          'echo "\n\nconstexpr char default_metallib_src[] = R\\"(" >> mtl_default_shaders_src_autogen.inc'
      )
      os.system('echo "#include <metal_stdlib>" >> mtl_default_shaders_src_autogen.inc')
      os.system('echo "#include <simd/simd.h>" >> mtl_default_shaders_src_autogen.inc')
      os.system(
          'clang -xc++ -E -DSKIP_STD_HEADERS master_source.metal >> mtl_default_shaders_src_autogen.inc'
      )
      os.system('echo ")\\";" >> mtl_default_shaders_src_autogen.inc')
  
  
  if __name__ == '__main__':
      sys.exit(main())
  

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