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#!/usr/bin/python
# Copyright 2014 Google Inc.
#
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""
Script for generating the Android framework's version of Skia from gyp
files.
"""
import os
import shutil
import sys
import tempfile
# Find the top of trunk
SCRIPT_DIR = os.path.abspath(os.path.dirname(__file__))
SKIA_DIR = os.path.normpath(os.path.join(SCRIPT_DIR, os.pardir, os.pardir,
os.pardir))
# Find the directory with our helper files, and add it to the path.
ANDROID_TOOLS = os.path.join(SKIA_DIR, 'platform_tools', 'android')
sys.path.append(ANDROID_TOOLS)
import gyp_gen.android_framework_gyp as android_framework_gyp
import gyp_gen.gypd_parser as gypd_parser
import gyp_gen.generate_user_config as generate_user_config
import gyp_gen.makefile_writer as makefile_writer
import gyp_gen.tool_makefile_writer as tool_makefile_writer
import gyp_gen.vars_dict_lib as vars_dict_lib
# Folder containing all gyp files and generated gypd files.
GYP_FOLDER = 'gyp'
def generate_var_dict(target_dir, target_file, skia_arch_type, have_neon):
"""Create a VarsDict for a particular arch type.
Each paramater is passed directly to android_framework_gyp.main().
Args:
target_dir: Directory containing gyp files.
target_file: Target gyp file.
skia_arch_type: Target architecture.
have_neon: Whether the target should build for neon.
Returns:
A VarsDict containing the variable definitions determined by gyp.
"""
result_file = android_framework_gyp.main(target_dir, target_file,
skia_arch_type, have_neon)
var_dict = vars_dict_lib.VarsDict()
gypd_parser.parse_gypd(var_dict, result_file, '.')
android_framework_gyp.clean_gypd_files(target_dir)
print '.',
return var_dict
def main(target_dir=None, require_sk_user_config=False):
"""Create Android.mk for the Android framework's external/skia.
Builds Android.mk using Skia's gyp files.
Args:
target_dir: Directory in which to place 'Android.mk'. If None, the file
will be placed in skia's root directory.
require_sk_user_config: If True, raise an AssertionError if
SkUserConfig.h does not exist.
"""
# Create a temporary folder to hold gyp and gypd files. Create it in SKIA_DIR
# so that it is a sibling of gyp/, so the relationships between gyp files and
# other files (e.g. platform_tools/android/gyp/dependencies.gypi, referenced
# by android_deps.gyp as a relative path) is unchanged.
# Use mkdtemp to find an unused folder name, but then delete it so copytree
# can be called with a non-existent directory.
tmp_folder = tempfile.mkdtemp(dir=SKIA_DIR)
os.rmdir(tmp_folder)
shutil.copytree(os.path.join(SKIA_DIR, GYP_FOLDER), tmp_folder)
try:
main_gyp_file = 'android_framework_lib.gyp'
print 'Creating Android.mk',
# Generate a separate VarsDict for each architecture type. For each
# archtype:
# 1. call android_framework_gyp.main() to generate gypd files
# 2. call parse_gypd to read those gypd files into the VarsDict
# 3. delete the gypd files
#
# Once we have the VarsDict for each architecture type, we combine them all
# into a single Android.mk file, which can build targets of any
# architecture type.
# The default uses a non-existant archtype, to find all the general
# variable definitions.
default_var_dict = generate_var_dict(tmp_folder, main_gyp_file, 'other',
False)
arm_var_dict = generate_var_dict(tmp_folder, main_gyp_file, 'arm', False)
arm_neon_var_dict = generate_var_dict(tmp_folder, main_gyp_file, 'arm',
True)
x86_var_dict = generate_var_dict(tmp_folder, main_gyp_file, 'x86', False)
mips_var_dict = generate_var_dict(tmp_folder, main_gyp_file, 'mips', False)
arm64_var_dict = generate_var_dict(tmp_folder, main_gyp_file, 'arm64',
False)
# Compute the intersection of all targets. All the files in the intersection
# should be part of the makefile always. Each dict will now contain trimmed
# lists containing only variable definitions specific to that configuration.
var_dict_list = [default_var_dict, arm_var_dict, arm_neon_var_dict,
x86_var_dict, mips_var_dict, arm64_var_dict]
common = vars_dict_lib.intersect(var_dict_list)
common.LOCAL_MODULE.add('libskia')
# Create SkUserConfig
user_config = os.path.join(SKIA_DIR, 'include', 'config', 'SkUserConfig.h')
if target_dir:
dst_dir = target_dir
else:
dst_dir = os.path.join(SKIA_DIR, 'include', 'core')
generate_user_config.generate_user_config(
original_sk_user_config=user_config,
require_sk_user_config=require_sk_user_config, target_dir=dst_dir,
ordered_set=common.DEFINES)
tool_makefile_writer.generate_tool(gyp_dir=tmp_folder,
target_file='tests.gyp',
skia_trunk=target_dir,
dest_dir='tests',
skia_lib_var_dict=common,
local_module_name='skia_test',
local_module_tags=['eng', 'tests'])
# TODO (scroggo): Generate bench/Android.mk. See skbug.com/2448
#tool_makefile_writer.generate_tool(gyp_dir=tmp_folder,
# target_file='bench.gyp',
# skia_trunk=target_dir,
# dest_dir='bench',
# skia_lib_var_dict=common,
# local_module_name='skia_bench',
# local_module_tags=['tests'])
# Now that the defines have been written to SkUserConfig and they've been
# used to skip adding them to the tools makefiles, they are not needed in
# Android.mk. Reset DEFINES.
common.DEFINES.reset()
# Further trim arm_neon_var_dict with arm_var_dict. After this call,
# arm_var_dict (which will now be the intersection) includes all definitions
# used by both arm and arm + neon, and arm_neon_var_dict will only contain
# those specific to arm + neon.
arm_var_dict = vars_dict_lib.intersect([arm_var_dict, arm_neon_var_dict])
# Now create a list of VarsDictData holding everything but common.
deviations_from_common = []
deviations_from_common.append(makefile_writer.VarsDictData(
arm_var_dict, 'arm'))
deviations_from_common.append(makefile_writer.VarsDictData(
arm_neon_var_dict, 'arm', 'ARCH_ARM_HAVE_NEON'))
deviations_from_common.append(makefile_writer.VarsDictData(x86_var_dict,
'x86'))
# Currently, x86_64 is identical to x86
deviations_from_common.append(makefile_writer.VarsDictData(x86_var_dict,
'x86_64'))
deviations_from_common.append(makefile_writer.VarsDictData(mips_var_dict,
'mips'))
deviations_from_common.append(makefile_writer.VarsDictData(arm64_var_dict,
'arm64'))
makefile_writer.write_android_mk(target_dir=target_dir,
common=common, deviations_from_common=deviations_from_common)
finally:
shutil.rmtree(tmp_folder)
if __name__ == '__main__':
main()
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