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  1. import common
  2.  
  3. Import('*')
  4.  
  5. from sys import executable as python_cmd
  6.  
  7. env = env.Clone()
  8.  
  9. env.Prepend(CPPPATH = [
  10.     '#include',
  11.     '#src/mapi',
  12.     '#src/mesa',
  13.     '#src/glsl',
  14.     '#src/glsl/glcpp',
  15. ])
  16.  
  17. # Make glcpp-parse.h and glsl_parser.h reachable from the include path.
  18. env.Append(CPPPATH = [Dir('.').abspath, Dir('glcpp').abspath])
  19.  
  20. env.Append(YACCFLAGS = '-d -p "glcpp_parser_"')
  21.  
  22. parser_env = env.Clone()
  23. parser_env.Append(YACCFLAGS = [
  24.     '--defines=%s' % File('glsl_parser.h').abspath,
  25.     '-p', '_mesa_glsl_',
  26. ])
  27.  
  28. # without this line scons will expect "glsl_parser.hpp" instead of
  29. # "glsl_parser.h", causing glsl_parser.cpp to be regenerated every time
  30. parser_env['YACCHXXFILESUFFIX'] = '.h'
  31.  
  32. glcpp_lexer = env.CFile('glcpp/glcpp-lex.c', 'glcpp/glcpp-lex.l')
  33. glcpp_parser = env.CFile('glcpp/glcpp-parse.c', 'glcpp/glcpp-parse.y')
  34. glsl_lexer = parser_env.CXXFile('glsl_lexer.cpp', 'glsl_lexer.ll')
  35. glsl_parser = parser_env.CXXFile('glsl_parser.cpp', 'glsl_parser.yy')
  36.  
  37. # common generated sources
  38. glsl_sources = [
  39.     glcpp_lexer,
  40.     glcpp_parser[0],
  41.     glsl_lexer,
  42.     glsl_parser[0],
  43. ]
  44.  
  45. # parse Makefile.sources
  46. source_lists = env.ParseSourceList('Makefile.sources')
  47.  
  48. # add non-generated sources
  49. for l in ('LIBGLCPP_FILES', 'LIBGLSL_FILES'):
  50.     glsl_sources += source_lists[l]
  51.  
  52. if env['msvc']:
  53.     env.Prepend(CPPPATH = ['#/src/getopt'])
  54.     env.PrependUnique(LIBS = [getopt])
  55.  
  56. if env['crosscompile'] and not env['embedded']:
  57.     Import('builtin_glsl_function')
  58. else:
  59.     # Copy these files to avoid generation object files into src/mesa/program
  60.     env.Prepend(CPPPATH = ['#src/mesa/main'])
  61.     env.Command('hash_table.c', '#src/mesa/main/hash_table.c', Copy('$TARGET', '$SOURCE'))
  62.     env.Command('imports.c', '#src/mesa/main/imports.c', Copy('$TARGET', '$SOURCE'))
  63.     # Copy these files to avoid generation object files into src/mesa/program
  64.     env.Prepend(CPPPATH = ['#src/mesa/program'])
  65.     env.Command('prog_hash_table.c', '#src/mesa/program/prog_hash_table.c', Copy('$TARGET', '$SOURCE'))
  66.     env.Command('symbol_table.c', '#src/mesa/program/symbol_table.c', Copy('$TARGET', '$SOURCE'))
  67.  
  68.     compiler_objs = env.StaticObject(source_lists['GLSL_COMPILER_CXX_FILES'])
  69.  
  70.     mesa_objs = env.StaticObject([
  71.         'hash_table.c',
  72.         'imports.c',
  73.         'prog_hash_table.c',
  74.         'symbol_table.c',
  75.     ])
  76.  
  77.     compiler_objs += mesa_objs
  78.  
  79.     builtin_compiler = env.Program(
  80.         target = 'builtin_compiler/builtin_compiler',
  81.         source = compiler_objs + glsl_sources + \
  82.             source_lists['BUILTIN_COMPILER_CXX_FILES'],
  83.     )
  84.  
  85.     # SCons builtin dependency scanner doesn't detect that glsl_lexer.ll
  86.     # depends on glsl_parser.h
  87.     env.Depends(builtin_compiler, glsl_parser)
  88.  
  89.     builtin_glsl_function = env.CodeGenerate(
  90.         target = 'builtin_function.cpp',
  91.         script = 'builtins/tools/generate_builtins.py',
  92.         source = builtin_compiler,
  93.         command = python_cmd + ' $SCRIPT $SOURCE > $TARGET'
  94.     )
  95.  
  96.     env.Depends(builtin_glsl_function, ['builtins/tools/generate_builtins.py', '#src/glsl/builtins/tools/texture_builtins.py'] + Glob('builtins/ir/*'))
  97.  
  98.     Export('builtin_glsl_function')
  99.  
  100.     if env['hostonly']:
  101.         Return()
  102.  
  103.  
  104. glsl_sources += builtin_glsl_function
  105.  
  106. glsl = env.ConvenienceLibrary(
  107.     target = 'glsl',
  108.     source = glsl_sources,
  109. )
  110.  
  111. # SCons builtin dependency scanner doesn't detect that glsl_lexer.ll depends on
  112. # glsl_parser.h
  113. env.Depends(glsl, glsl_parser)
  114.  
  115. Export('glsl')
  116.  
  117. # Skip building these programs as they will cause SCons error "Two environments
  118. # with different actions were specified for the same target"
  119. if env['crosscompile'] or env['embedded']:
  120.     Return()
  121.  
  122. env = env.Clone()
  123.  
  124. if env['platform'] == 'windows':
  125.     env.PrependUnique(LIBS = [
  126.         'user32',
  127.     ])
  128.  
  129. env.Prepend(LIBS = [glsl])
  130.  
  131. glsl2 = env.Program(
  132.     target = 'glsl2',
  133.     source = compiler_objs,
  134. )
  135. env.Alias('glsl2', glsl2)
  136.  
  137. glcpp = env.Program(
  138.     target = 'glcpp/glcpp',
  139.     source = ['glcpp/glcpp.c'] + mesa_objs,
  140. )
  141. env.Alias('glcpp', glcpp)
  142.