src/glsl/SConscript

   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/program'])
  61     env.Command('hash_table.c', '#src/mesa/program/hash_table.c', Copy('$TARGET', '$SOURCE'))
  62     env.Command('symbol_table.c', '#src/mesa/program/symbol_table.c', Copy('$TARGET', '$SOURCE'))
  63
  64     compiler_objs = env.StaticObject(source_lists['GLSL_COMPILER_CXX_FILES'])
  65
  66     mesa_objs = env.StaticObject([
  67         'hash_table.c',
  68         'symbol_table.c',
  69     ])
  70
  71     compiler_objs += mesa_objs
  72
  73     builtin_compiler = env.Program(
  74         target = 'builtin_compiler/builtin_compiler',
  75         source = compiler_objs + glsl_sources + [
  76             'builtin_compiler/builtin_stubs.cpp',
  77         ]
  78     )
  79
  80     # SCons builtin dependency scanner doesn't detect that glsl_lexer.ll
  81     # depends on glsl_parser.h
  82     env.Depends(builtin_compiler, glsl_parser)
  83
  84     builtin_glsl_function = env.CodeGenerate(
  85         target = 'builtin_function.cpp',
  86         script = 'builtins/tools/generate_builtins.py',
  87         source = builtin_compiler,
  88         command = python_cmd + ' $SCRIPT $SOURCE > $TARGET'
  89     )
  90
  91     env.Depends(builtin_glsl_function, ['builtins/tools/generate_builtins.py', '#src/glsl/builtins/tools/texture_builtins.py'] + Glob('builtins/ir/*'))
  92
  93     Export('builtin_glsl_function')
  94
  95     if env['hostonly']:
  96         Return()
  97
  98
  99 glsl_sources += builtin_glsl_function
 100
 101 glsl = env.ConvenienceLibrary(
 102     target = 'glsl',
 103     source = glsl_sources,
 104 )
 105
 106 # SCons builtin dependency scanner doesn't detect that glsl_lexer.ll depends on
 107 # glsl_parser.h
 108 env.Depends(glsl, glsl_parser)
 109
 110 Export('glsl')
 111
 112 # Skip building these programs as they will cause SCons error "Two environments
 113 # with different actions were specified for the same target"
 114 if env['crosscompile'] or env['embedded']:
 115     Return()
 116
 117 env = env.Clone()
 118
 119 if env['platform'] == 'windows':
 120     env.PrependUnique(LIBS = [
 121         'user32',
 122     ])
 123
 124 env.Prepend(LIBS = [glsl])
 125
 126 glsl2 = env.Program(
 127     target = 'glsl2',
 128     source = compiler_objs,
 129 )
 130 env.Alias('glsl2', glsl2)
 131
 132 glcpp = env.Program(
 133     target = 'glcpp/glcpp',
 134     source = ['glcpp/glcpp.c'] + mesa_objs,
 135 )
 136 env.Alias('glcpp', glcpp)