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SConscript revision 1.1 
      1 #######################################################################
      2 # SConscript for Mesa
      3 
      4 
      5 Import('*')
      6 import filecmp
      7 import os
      8 import subprocess
      9 from sys import executable as python_cmd
     10 
     11 env = env.Clone()
     12 
     13 env.Append(CPPPATH = [
     14     '#/src',
     15     '#/src/mapi',
     16     '#/src/glsl',
     17     '#/src/mesa',
     18     Dir('../mapi'), # src/mapi build path
     19     Dir('.'), # src/mesa build path
     20 ])
     21 
     22 if env['platform'] == 'windows':
     23     env.Append(CPPDEFINES = [
     24         '_GDI32_', # prevent gl* being declared __declspec(dllimport) in MS headers
     25         'BUILD_GL32', # declare gl* as __declspec(dllexport) in Mesa headers
     26     ])
     27     if not env['gles']:
     28         # prevent _glapi_* from being declared __declspec(dllimport)
     29         env.Append(CPPDEFINES = ['_GLAPI_NO_EXPORTS'])
     30 else:
     31     env.Append(CPPDEFINES = [
     32         ('HAVE_DLOPEN', '1'),
     33     ])
     34 
     35 # parse Makefile.sources
     36 source_lists = env.ParseSourceList('Makefile.sources')
     37 
     38 env.Append(YACCFLAGS = '-d -p "_mesa_program_"')
     39 program_lex = env.CFile('program/lex.yy.c', 'program/program_lexer.l')
     40 program_parse = env.CFile('program/program_parse.tab.c',
     41                           'program/program_parse.y')
     42 program_sources = source_lists['PROGRAM_FILES'] + [
     43     program_lex,
     44     program_parse[0],
     45 ]
     46 
     47 mesa_sources = (
     48     source_lists['MESA_FILES'] +
     49     program_sources +
     50     source_lists['STATETRACKER_FILES']
     51 )
     52 
     53 GLAPI = '#src/mapi/glapi/'
     54 
     55 get_hash_header = env.CodeGenerate(
     56       target = 'main/get_hash.h',
     57       script = 'main/get_hash_generator.py',
     58       source = GLAPI + 'gen/gl_and_es_API.xml',
     59       command = python_cmd + ' $SCRIPT ' + ' -f $SOURCE > $TARGET'
     60 )
     61 
     62 format_info = env.CodeGenerate(
     63       target = 'main/format_info.c',
     64       script = 'main/format_info.py',
     65       source = 'main/formats.csv',
     66       command = python_cmd + ' $SCRIPT ' + ' $SOURCE > $TARGET'
     67 )
     68 
     69 #
     70 # Assembly sources
     71 #
     72 if (env['gcc'] or env['clang']) and \
     73    env['platform'] not in ('cygwin', 'darwin', 'windows', 'haiku'):
     74     if env['machine'] == 'x86':
     75         env.Append(CPPDEFINES = [
     76             'USE_X86_ASM',
     77             'USE_MMX_ASM',
     78             'USE_3DNOW_ASM',
     79             'USE_SSE_ASM',
     80         ])
     81         mesa_sources += source_lists['X86_FILES']
     82     elif env['machine'] == 'x86_64':
     83         env.Append(CPPDEFINES = [
     84             'USE_X86_64_ASM',
     85         ])
     86         mesa_sources += source_lists['X86_64_FILES']
     87     elif env['machine'] == 'sparc':
     88         mesa_sources += source_lists['SPARC_FILES']
     89     else:
     90         pass
     91 
     92     # Generate matypes.h
     93     if env['machine'] in ('x86', 'x86_64'):
     94         # See http://www.scons.org/wiki/UsingCodeGenerators
     95         gen_matypes = env.Program(
     96             target = 'gen_matypes',
     97             source = 'x86/gen_matypes.c',
     98         )
     99         matypes = env.Command(
    100             'matypes.h',
    101             gen_matypes,
    102             gen_matypes[0].abspath + ' > $TARGET',
    103         )
    104         # Add the dir containing the generated header (somewhere inside  the
    105         # build dir) to the include path
    106         env.Append(CPPPATH = [matypes[0].dir])
    107 
    108 
    109 def write_git_sha1_h_file(filename):
    110     """Mesa looks for a git_sha1.h file at compile time in order to display
    111     the current git hash id in the GL_VERSION string.  This function tries
    112     to retrieve the git hashid and write the header file.  An empty file
    113     will be created if anything goes wrong."""
    114 
    115     args = [ 'git', 'log', '-n', '1', '--oneline' ]
    116     try:
    117         (commit, foo) = subprocess.Popen(args, stdout=subprocess.PIPE).communicate()
    118     except:
    119         # git log command didn't work
    120         if not os.path.exists(filename):
    121             # create an empty file if none already exists
    122             f = open(filename, "w")
    123             f.close()
    124         return
    125 
    126     commit = '#define MESA_GIT_SHA1 "git-%s"\n' % commit[0:7]
    127     tempfile = "git_sha1.h.tmp"
    128     f = open(tempfile, "w")
    129     f.write(commit)
    130     f.close()
    131     if not os.path.exists(filename) or not filecmp.cmp(tempfile, filename):
    132         # The filename does not exist or it's different from the new file,
    133         # so replace old file with new.
    134         if os.path.exists(filename):
    135             os.remove(filename)
    136         os.rename(tempfile, filename)
    137     return
    138 
    139 
    140 # Create the git_sha1.h header file
    141 write_git_sha1_h_file("main/git_sha1.h")
    142 # and update CPPPATH so the git_sha1.h header can be found
    143 env.Append(CPPPATH = ["#" + env['build_dir'] + "/mesa/main"])
    144 
    145 
    146 #
    147 # Libraries
    148 #
    149 
    150 mesa = env.ConvenienceLibrary(
    151     target = 'mesa',
    152     source = mesa_sources,
    153 )
    154 
    155 env.Alias('mesa', mesa)
    156 
    157 Export('mesa')
    158 
    159 SConscript('drivers/SConscript')
    160