#!/usr/bin/env python
#
# ***** BEGIN GPL LICENSE BLOCK *****
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# The Original Code is Copyright (C) 2013, Blender Foundation
# All rights reserved.
#
# The Original Code is: all of this file.
#
# Contributor(s): Sergey Sharybin.
#
# ***** END GPL LICENSE BLOCK *****

import os

Import('env')

sources = env.Glob('*.cc')

defs = [ 'GLEW_STATIC' ]

if env['OURPLATFORM'] in ('win32-vc', 'win32-mingw', 'linuxcross', 'win64-vc', 'win64-mingw'):
    defs += [ 'NOMINMAX' ]

incs = '. ../guardedalloc #extern/clew/include/'
incs += ' ' + env['BF_OPENSUBDIV_INC']
incs += ' #/extern/glew/include'

def checkOpenSubdivHeaderDefine(header, define):
    include_path = Dir(env.subst(env['BF_OPENSUBDIV_INC'])).abspath
    header_path = os.path.join(include_path, 'opensubdiv', 'osd', header)
    if os.path.exists(header_path):
        defs.append(define)
        return True
    return False

checkOpenSubdivHeaderDefine("tbbComputeController.h", 'OPENSUBDIV_HAS_TBB')
checkOpenSubdivHeaderDefine("gcdComputeController.h", 'OPENSUBDIV_HAS_GCD')
if checkOpenSubdivHeaderDefine("clComputeController.h", 'OPENSUBDIV_HAS_OPENCL'):
    defs += ['OPENSUBDIV_HAS_CLEW']
    incs += ' #/extern/clew/include'
if checkOpenSubdivHeaderDefine("cudaComputeController.h", 'OPENSUBDIV_HAS_CUDA'):
    defs += ['OPENSUBDIV_HAS_CUEW']
    incs += ' #/extern/cuew/include'
checkOpenSubdivHeaderDefine("glslTransformFeedbackComputeController.h", 'OPENSUBDIV_HAS_GLSL_TRANSFORM_FEEDBACK')
checkOpenSubdivHeaderDefine("osd/glslComputeController.h", 'OPENSUBDIV_HAS_GLSL_COMPUTE')

# generated data files
sources.extend((
    os.path.join(env['DATA_SOURCES'], "gpu_shader_opensubd_display.glsl.c"),
))

env.BlenderLib('bf_intern_opensubdiv', sources, Split(incs), defs, libtype=['extern','player'], priority=[10, 185])