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      1 #######################################################################
      2 # SConscript for shared-glapi/es1api/es2api
      3 
      4 from sys import executable as python_cmd
      5 
      6 Import('*')
      7 
      8 def mapi_objects(env, printer, mode):
      9     """Return mapi objects built for the given printer and mode."""
     10     mapi_sources = {
     11         'glapi': [
     12             'entry.c',
     13             'mapi_glapi.c',
     14             'stub.c',
     15             'table.c',
     16             'u_current.c',
     17             'u_execmem.c',
     18         ],
     19         'bridge': ['entry.c'],
     20     }
     21     mapi_defines = {
     22         'glapi': ['MAPI_MODE_GLAPI'],
     23         'bridge': ['MAPI_MODE_BRIDGE'],
     24     }
     25 
     26     header_name = '%s-tmp.h' % (printer)
     27 
     28     # generate ABI header
     29     GLAPI = '../glapi/'
     30     header = env.CodeGenerate(
     31         target = header_name,
     32         script = '../mapi_abi.py',
     33         source = [GLAPI + 'gen/gl_and_es_API.xml'] + env.Glob(GLAPI + 'gen/*.xml'),
     34         command = python_cmd + ' $SCRIPT ' + \
     35                 '--printer %s $SOURCE > $TARGET' % (printer),
     36     )
     37 
     38     cpppath = [
     39         header[0].dir,
     40         '#/include',
     41         '#/src',
     42         '#/src/mapi',
     43     ]
     44 
     45     cppdefines = mapi_defines[mode] + [
     46         'MAPI_ABI_HEADER=\\"%s\\"' % (header_name),
     47     ]
     48 
     49     if env['platform'] == 'windows':
     50         if mode == 'glapi':
     51             cppdefines += [
     52                 '_GLAPI_DLL_EXPORTS', # declare _glapi_* as __declspec(dllexport) in glapi.h
     53             ]
     54         else:
     55             cppdefines += [
     56                 '_GDI32_', # prevent gl* being declared __declspec(dllimport) in MS headers
     57                 'BUILD_GL32', # declare gl* as __declspec(dllexport) in Mesa headers
     58             ]
     59 
     60     objects = []
     61     for s in mapi_sources[mode]:
     62         o = env.SharedObject(
     63             target = '%s-%s' % (printer, s[:-2]),
     64             source = '../' + s,
     65             CPPPATH = cpppath,
     66             CPPDEFINES = cppdefines,
     67         )
     68         objects.append(o[0])
     69 
     70     env.Depends(objects, header)
     71 
     72     return objects
     73 
     74 env = env.Clone()
     75 
     76 env['SHLIBPREFIX'] = 'lib'
     77 env['LIBPREFIX'] = 'lib'
     78 
     79 shared_glapi_objects = mapi_objects(env, 'shared-glapi', 'glapi')
     80 shared_glapi = env.SharedLibrary(
     81     target = 'glapi',
     82     source = shared_glapi_objects,
     83 )
     84 
     85 # manually add LIBPREFIX on windows
     86 if env['platform'] == 'windows':
     87     libs = ['libglapi']
     88 else:
     89     libs = ['glapi']
     90 
     91 es1api_objects = mapi_objects(env, 'es1api', 'bridge')
     92 es1api = env.SharedLibrary(
     93     target = 'GLESv1_CM',
     94     source = es1api_objects,
     95     LIBPATH = ['.'],
     96     LIBS = libs,
     97 )
     98 
     99 es2api_objects = mapi_objects(env, 'es2api', 'bridge')
    100 es2api = env.SharedLibrary(
    101     target = 'GLESv2',
    102     source = es2api_objects,
    103     LIBPATH = ['.'],
    104     LIBS = libs,
    105 )
    106 
    107 env.InstallSharedLibrary(shared_glapi, version=(0, 0, 0))
    108 env.InstallSharedLibrary(es1api, version=(1, 0, 0))
    109 env.InstallSharedLibrary(es2api, version=(2, 0, 0))
    110 
    111 if env['platform'] == 'windows':
    112     shared_glapi = env.FindIxes(shared_glapi, 'LIBPREFIX', 'LIBSUFFIX')
    113 else:
    114     shared_glapi = env.FindIxes(shared_glapi, 'SHLIBPREFIX', 'SHLIBSUFFIX')
    115 
    116 # build glapi bridge as a convenience libarary for libgl-xlib/libgl-gdi
    117 bridge_glapi_objects = mapi_objects(env, 'glapi', 'bridge')
    118 bridge_glapi = env.ConvenienceLibrary(
    119     target = 'glapi_bridge',
    120     source = bridge_glapi_objects,
    121 )
    122 
    123 Export(['shared_glapi', 'bridge_glapi'])
    124