src/mesa/SConscript

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