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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     header = env.CodeGenerate(
     30         target = header_name,
     31         script = '../mapi/mapi_abi.py',
     32         source = '../glapi/gen/gl_and_es_API.xml',
     33         command = python_cmd + ' $SCRIPT ' + \
     34                 '--printer %s --mode lib $SOURCE > $TARGET' % (printer),
     35     )
     36 
     37     cpppath = [
     38         header[0].dir,
     39         '#/include',
     40         '#/src/mapi',
     41     ]
     42     
     43     cppdefines = mapi_defines[mode] + [
     44         'MAPI_ABI_HEADER=\\"%s\\"' % (header_name),
     45     ]
     46 
     47     if env['platform'] == 'windows':
     48         if mode == 'glapi':
     49             cppdefines += [
     50                 '_GLAPI_DLL_EXPORTS', # declare _glapi_* as __declspec(dllexport) in glapi.h
     51             ]
     52         else:
     53             cppdefines += [
     54                 '_GDI32_', # prevent gl* being declared __declspec(dllimport) in MS headers
     55                 'BUILD_GL32', # declare gl* as __declspec(dllexport) in Mesa headers
     56             ]
     57 
     58     objects = []
     59     for s in mapi_sources[mode]:
     60         o = env.SharedObject(
     61             target = '%s-%s' % (printer, s[:-2]),
     62             source = '../mapi/' + s,
     63             CPPPATH = cpppath,
     64             CPPDEFINES = cppdefines,
     65         )
     66         objects.append(o[0])
     67 
     68     env.Depends(objects, header)
     69 
     70     return objects
     71 
     72 env = env.Clone()
     73 
     74 env['SHLIBPREFIX'] = 'lib'
     75 env['LIBPREFIX'] = 'lib'
     76 
     77 shared_glapi_objects = mapi_objects(env, 'shared-glapi', 'glapi')
     78 shared_glapi = env.SharedLibrary(
     79     target = 'glapi',
     80     source = shared_glapi_objects,
     81 )
     82 
     83 # manually add LIBPREFIX on windows
     84 if env['platform'] == 'windows':
     85     libs = ['libglapi']
     86 else:
     87     libs = ['glapi']
     88 
     89 es1api_objects = mapi_objects(env, 'es1api', 'bridge')
     90 es1api = env.SharedLibrary(
     91     target = 'GLESv1_CM',
     92     source = es1api_objects,
     93     LIBPATH = ['.'],
     94     LIBS = libs,
     95 )
     96 
     97 es2api_objects = mapi_objects(env, 'es2api', 'bridge')
     98 es2api = env.SharedLibrary(
     99     target = 'GLESv2',
    100     source = es2api_objects,
    101     LIBPATH = ['.'],
    102     LIBS = libs,
    103 )
    104 
    105 env.InstallSharedLibrary(shared_glapi, version=(0, 0, 0))
    106 env.InstallSharedLibrary(es1api, version=(1, 0, 0))
    107 env.InstallSharedLibrary(es2api, version=(2, 0, 0))
    108 
    109 if env['platform'] == 'windows':
    110     shared_glapi = env.FindIxes(shared_glapi, 'LIBPREFIX', 'LIBSUFFIX')
    111 else:
    112     shared_glapi = env.FindIxes(shared_glapi, 'SHLIBPREFIX', 'SHLIBSUFFIX')
    113 
    114 # build glapi bridge as a convenience libarary for libgl-xlib/libgl-gdi
    115 bridge_glapi_objects = mapi_objects(env, 'glapi', 'bridge')
    116 bridge_glapi = env.ConvenienceLibrary(
    117     target = 'glapi_bridge',
    118     source = bridge_glapi_objects,
    119 )
    120 
    121 Export(['shared_glapi', 'bridge_glapi'])
    122