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.MSVC2013Compat()
  14
  15 env.Append(CPPPATH = [
  16     '#/src',
  17     '#/src/mapi',
  18     '#/src/glsl',
  19     '#/src/mesa',
  20     '#/src/gallium/include',
  21     '#/src/gallium/auxiliary',
  22     Dir('../mapi'), # src/mapi build path
  23     Dir('.'), # src/mesa build path
  24 ])
  25
  26 if env['platform'] == 'windows':
  27     env.Append(CPPDEFINES = [
  28         '_GDI32_', # prevent gl* being declared __declspec(dllimport) in MS headers
  29         'BUILD_GL32', # declare gl* as __declspec(dllexport) in Mesa headers
  30     ])
  31     if not env['gles']:
  32         # prevent _glapi_* from being declared __declspec(dllimport)
  33         env.Append(CPPDEFINES = ['_GLAPI_NO_EXPORTS'])
  34 else:
  35     env.Append(CPPDEFINES = [
  36         ('HAVE_DLOPEN', '1'),
  37     ])
  38
  39 # parse Makefile.sources
  40 source_lists = env.ParseSourceList('Makefile.sources')
  41
  42 env.Append(YACCFLAGS = ['-d', '-p', '_mesa_program_'])
  43 env.CFile('program/lex.yy.c', 'program/program_lexer.l')
  44 env.CFile('program/program_parse.tab.c', 'program/program_parse.y')
  45
  46 mesa_sources = (
  47     source_lists['MESA_FILES'] +
  48     source_lists['PROGRAM_FILES'] +
  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 format_info = env.CodeGenerate(
  62       target = 'main/format_info.h',
  63       script = 'main/format_info.py',
  64       source = 'main/formats.csv',
  65       command = python_cmd + ' $SCRIPT ' + ' $SOURCE > $TARGET'
  66 )
  67
  68 format_pack = env.CodeGenerate(
  69       target = 'main/format_pack.c',
  70       script = 'main/format_pack.py',
  71       source = 'main/formats.csv',
  72       command = python_cmd + ' $SCRIPT ' + ' $SOURCE > $TARGET'
  73 )
  74
  75 format_unpack = env.CodeGenerate(
  76       target = 'main/format_unpack.c',
  77       script = 'main/format_unpack.py',
  78       source = 'main/formats.csv',
  79       command = python_cmd + ' $SCRIPT ' + ' $SOURCE > $TARGET'
  80 )
  81
  82 #
  83 # Assembly sources
  84 #
  85 if (env['gcc'] or env['clang']) and \
  86    env['platform'] not in ('cygwin', 'darwin', 'windows', 'haiku'):
  87     if env['machine'] == 'x86':
  88         env.Append(CPPDEFINES = [
  89             'USE_X86_ASM',
  90             'USE_MMX_ASM',
  91             'USE_3DNOW_ASM',
  92             'USE_SSE_ASM',
  93         ])
  94         mesa_sources += source_lists['X86_FILES']
  95     elif env['machine'] == 'x86_64':
  96         env.Append(CPPDEFINES = [
  97             'USE_X86_64_ASM',
  98         ])
  99         mesa_sources += source_lists['X86_64_FILES']
 100     elif env['machine'] == 'sparc':
 101         mesa_sources += source_lists['SPARC_FILES']
 102     else:
 103         pass
 104
 105     # Generate matypes.h
 106     if env['machine'] in ('x86', 'x86_64'):
 107         # See http://www.scons.org/wiki/UsingCodeGenerators
 108         gen_matypes = env.Program(
 109             target = 'gen_matypes',
 110             source = 'x86/gen_matypes.c',
 111         )
 112         matypes = env.Command(
 113             'matypes.h',
 114             gen_matypes,
 115             gen_matypes[0].abspath + ' > $TARGET',
 116         )
 117         # Add the dir containing the generated header (somewhere inside  the
 118         # build dir) to the include path
 119         env.Append(CPPPATH = [matypes[0].dir])
 120
 121
 122 def write_git_sha1_h_file(filename):
 123     """Mesa looks for a git_sha1.h file at compile time in order to display
 124     the current git hash id in the GL_VERSION string.  This function tries
 125     to retrieve the git hashid and write the header file.  An empty file
 126     will be created if anything goes wrong."""
 127
 128     args = [ 'git', 'log', '-n', '1', '--oneline' ]
 129     try:
 130         (commit, foo) = subprocess.Popen(args, stdout=subprocess.PIPE).communicate()
 131     except:
 132         # git log command didn't work
 133         if not os.path.exists(filename):
 134             dirname = os.path.dirname(filename)
 135             if not os.path.exists(dirname):
 136                 os.makedirs(dirname)
 137             # create an empty file if none already exists
 138             f = open(filename, "w")
 139             f.close()
 140         return
 141
 142     commit = '#define MESA_GIT_SHA1 "git-%s"\n' % commit[0:7]
 143     tempfile = "git_sha1.h.tmp"
 144     f = open(tempfile, "w")
 145     f.write(commit)
 146     f.close()
 147     if not os.path.exists(filename) or not filecmp.cmp(tempfile, filename):
 148         # The filename does not exist or it's different from the new file,
 149         # so replace old file with new.
 150         if os.path.exists(filename):
 151             os.remove(filename)
 152         os.rename(tempfile, filename)
 153     return
 154
 155
 156 # Create the git_sha1.h header file
 157 write_git_sha1_h_file("main/git_sha1.h")
 158 # and update CPPPATH so the git_sha1.h header can be found
 159 env.Append(CPPPATH = ["#" + env['build_dir'] + "/mesa/main"])
 160
 161
 162 #
 163 # Libraries
 164 #
 165
 166 mesa = env.ConvenienceLibrary(
 167     target = 'mesa',
 168     source = mesa_sources,
 169 )
 170
 171 env.Alias('mesa', mesa)
 172
 173 Export('mesa')
 174
 175 SConscript('drivers/SConscript')