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/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)