Chia-I Wu
bb770af3a5
GLES can be enabled by running scons with $ scons gles=yes When gles=yes is given, the build is changed in three ways. First, libmesa.a will be built with FEATURE_ES1 and FEATURE_ES2. This makes DRI drivers and libEGL support and advertise GLES support. Second, GLES libraries will be created. They are libGLESv1_CM, libGLESv2, and libglapi. Last, libGL or opengl32 will link to libglapi. This change is required as _glapi_* will be declared as __declspec(dllimport) in libmesa.a on windows. libmesa.a expects those symbols to be defined in another DLL. Due to this change to GL, GLES support is marked experimental. Note that GLES requires libxml2-python to generate some of its sources.
117 lines
3.3 KiB
Python
117 lines
3.3 KiB
Python
#######################################################################
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# SConscript for shared-glapi/es1api/es2api
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from sys import executable as python_cmd
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Import('*')
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def mapi_objects(env, printer, mode):
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"""Return mapi objects built for the given printer and mode."""
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mapi_sources = {
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'glapi': ['entry.c', 'mapi_glapi.c', 'stub.c', 'table.c',
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'u_current.c', 'u_execmem.c', 'u_thread.c'],
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'bridge': ['entry.c'],
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}
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mapi_defines = {
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'glapi': ['MAPI_MODE_GLAPI'],
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'bridge': ['MAPI_MODE_BRIDGE'],
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}
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header_name = '%s-tmp.h' % (printer)
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# generate ABI header
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header = env.CodeGenerate(
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target = header_name,
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script = '../mapi/mapi_abi.py',
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source = '../glapi/gen/gl_and_es_API.xml',
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command = python_cmd + ' $SCRIPT ' + \
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'--printer %s --mode lib $SOURCE > $TARGET' % (printer),
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)
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cpppath = [
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header[0].dir,
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'#/include',
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'#/src/mapi',
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]
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cppdefines = mapi_defines[mode] + [
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'MAPI_ABI_HEADER=\\"%s\\"' % (header_name),
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]
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if env['platform'] == 'windows':
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if mode == 'glapi':
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cppdefines += [
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'_GLAPI_DLL_EXPORTS', # declare _glapi_* as __declspec(dllexport) in glapi.h
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]
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else:
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cppdefines += [
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'_GDI32_', # prevent gl* being declared __declspec(dllimport) in MS headers
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'BUILD_GL32', # declare gl* as __declspec(dllexport) in Mesa headers
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]
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objects = []
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for s in mapi_sources[mode]:
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o = env.SharedObject(
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target = '%s-%s' % (printer, s[:-2]),
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source = '../mapi/' + s,
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CPPPATH = cpppath,
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CPPDEFINES = cppdefines,
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)
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objects.append(o[0])
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env.Depends(objects, header)
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return objects
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if env['platform'] != 'winddk':
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env = env.Clone()
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env['SHLIBPREFIX'] = 'lib'
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env['LIBPREFIX'] = 'lib'
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shared_glapi_objects = mapi_objects(env, 'shared-glapi', 'glapi')
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shared_glapi = env.SharedLibrary(
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target = 'glapi',
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source = shared_glapi_objects,
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)
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# manually add LIBPREFIX on windows
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if env['platform'] == 'windows':
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libs = ['libglapi']
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else:
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libs = ['glapi']
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es1api_objects = mapi_objects(env, 'es1api', 'bridge')
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es1api = env.SharedLibrary(
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target = 'GLESv1_CM',
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source = es1api_objects,
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LIBPATH = ['.'],
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LIBS = libs,
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)
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es2api_objects = mapi_objects(env, 'es2api', 'bridge')
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es2api = env.SharedLibrary(
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target = 'GLESv2',
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source = es2api_objects,
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LIBPATH = ['.'],
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LIBS = libs,
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)
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env.InstallSharedLibrary(shared_glapi, version=(0, 0, 0))
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env.InstallSharedLibrary(es1api, version=(1, 0, 0))
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env.InstallSharedLibrary(es2api, version=(2, 0, 0))
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if env['platform'] == 'windows':
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shared_glapi = env.FindIxes(shared_glapi, 'LIBPREFIX', 'LIBSUFFIX')
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else:
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shared_glapi = env.FindIxes(shared_glapi, 'SHLIBPREFIX', 'SHLIBSUFFIX')
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# build glapi bridge as a convenience libarary for libgl-xlib/libgl-gdi
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bridge_glapi_objects = mapi_objects(env, 'glapi', 'bridge')
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bridge_glapi = env.ConvenienceLibrary(
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target = 'glapi_bridge',
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source = bridge_glapi_objects,
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)
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Export(['shared_glapi', 'bridge_glapi'])
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