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',
  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 #
  63 # Assembly sources
  64 #
  65 if (env['gcc'] or env['clang']) and \
  66    env['platform'] not in ('cygwin', 'darwin', 'windows', 'haiku'):
  67     if env['machine'] == 'x86':
  68         env.Append(CPPDEFINES = [
  69             'USE_X86_ASM',
  70             'USE_MMX_ASM',
  71             'USE_3DNOW_ASM',
  72             'USE_SSE_ASM',
  73         ])
  74         mesa_sources += source_lists['X86_FILES']
  75     elif env['machine'] == 'x86_64':
  76         env.Append(CPPDEFINES = [
  77             'USE_X86_64_ASM',
  78         ])
  79         mesa_sources += source_lists['X86_64_FILES']
  80     elif env['machine'] == 'sparc':
  81         mesa_sources += source_lists['SPARC_FILES']
  82     else:
  83         pass
  84
  85     # Generate matypes.h
  86     if env['machine'] in ('x86', 'x86_64'):
  87         # See http://www.scons.org/wiki/UsingCodeGenerators
  88         gen_matypes = env.Program(
  89             target = 'gen_matypes',
  90             source = 'x86/gen_matypes.c',
  91         )
  92         matypes = env.Command(
  93             'matypes.h',
  94             gen_matypes,
  95             gen_matypes[0].abspath + ' > $TARGET',
  96         )
  97         # Add the dir containing the generated header (somewhere inside  the
  98         # build dir) to the include path
  99         env.Append(CPPPATH = [matypes[0].dir])
 100
 101
 102 def write_git_sha1_h_file(filename):
 103     """Mesa looks for a git_sha1.h file at compile time in order to display
 104     the current git hash id in the GL_VERSION string.  This function tries
 105     to retrieve the git hashid and write the header file.  An empty file
 106     will be created if anything goes wrong."""
 107
 108     args = [ 'git', 'log', '-n', '1', '--oneline' ]
 109     try:
 110         (commit, foo) = subprocess.Popen(args, stdout=subprocess.PIPE).communicate()
 111     except:
 112         # git log command didn't work
 113         if not os.path.exists(filename):
 114             # create an empty file if none already exists
 115             f = open(filename, "w")
 116             f.close()
 117         return
 118
 119     commit = '#define MESA_GIT_SHA1 "git-%s"\n' % commit[0:7]
 120     tempfile = "git_sha1.h.tmp"
 121     f = open(tempfile, "w")
 122     f.write(commit)
 123     f.close()
 124     if not os.path.exists(filename) or not filecmp.cmp(tempfile, filename):
 125         # The filename does not exist or it's different from the new file,
 126         # so replace old file with new.
 127         if os.path.exists(filename):
 128             os.remove(filename)
 129         os.rename(tempfile, filename)
 130     return
 131
 132
 133 # Create the git_sha1.h header file
 134 write_git_sha1_h_file("main/git_sha1.h")
 135 # and update CPPPATH so the git_sha1.h header can be found
 136 env.Append(CPPPATH = ["#" + env['build_dir'] + "/mesa/main"])
 137
 138
 139 #
 140 # Libraries
 141 #
 142
 143 mesa = env.ConvenienceLibrary(
 144     target = 'mesa',
 145     source = mesa_sources,
 146 )
 147
 148 env.Alias('mesa', mesa)
 149
 150 Export('mesa')
 151
 152 SConscript('drivers/SConscript')