| #!/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. |
| |
| """Function for generating the SkUserConfig file, customized for Android.""" |
| |
| import os |
| import shutil |
| |
| |
| AUTOGEN_WARNING = ( |
| """ |
| /////////////////////////////////////////////////////////////////////////////// |
| // |
| // THIS FILE IS AUTOGENERATED BY GYP_TO_ANDROID.PY. DO NOT EDIT. |
| // |
| // This file contains Skia's upstream include/config/SkUserConfig.h as a |
| // reference, followed by the actual defines set for Android. |
| // |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| """ |
| ) |
| |
| BUILD_GUARD = 'SkUserConfig_Android_DEFINED' |
| |
| |
| def generate_user_config(original_sk_user_config, require_sk_user_config, |
| target_dir, defines): |
| """Generate the SkUserConfig file specific to the Android framework. |
| |
| Android needs its #defines in its skia/include/core directory, so that other |
| libraries which use Skia's headers get the right definitions. This function |
| takes the existing sample version of SkUserConfig, checked into Skia, and |
| appends the defines from ordered_set, which is expected to be a |
| vars_dict_lib.OrderedSet containing the defines. The result is written to |
| target_dir/SkUserConfig.h |
| |
| Args: |
| original_sk_user_config: Path to original SkUserConfig.h |
| require_sk_user_config: If True, raise an AssertionError if |
| SkUserConfig.h does not exist. Either way, if it does exist, copy it |
| into the new file. |
| target_dir: Directory within which the modified SkUserConfig.h will be |
| written. Its name will be the same basename as |
| original_sk_user_config. If None, the new file will be written to the |
| working directory. |
| defines: Iterable of defines to be appended to SkUserConfig. |
| |
| Raises: |
| AssertionError: If original_sk_user_config does not exist. |
| """ |
| |
| sk_user_config_exists = os.path.exists(original_sk_user_config) |
| if require_sk_user_config: |
| assert sk_user_config_exists |
| |
| dst_filename = os.path.basename(original_sk_user_config) |
| if target_dir: |
| dst_filename = os.path.join(target_dir, dst_filename) |
| |
| with open(dst_filename, 'w') as dst: |
| dst.write(AUTOGEN_WARNING) |
| |
| # Copy the original exactly. This is merely for reference. Many of the |
| # defines written to the file below, either manually or generated from the |
| # gyp files, have explanations in the original SkUserConfig.h |
| if sk_user_config_exists: |
| with open(original_sk_user_config, 'r') as original: |
| shutil.copyfileobj(original, dst) |
| |
| # Now add the defines specific to Android. Write a custom build guard to |
| # ensure they don't get defined more than once. |
| dst.write('\n// Android defines:\n') |
| dst.write('#ifndef ' + BUILD_GUARD + '\n') |
| dst.write('#define ' + BUILD_GUARD + '\n') |
| |
| # Add conditional defines manually: |
| |
| # do this build check for other tools that still read this header |
| dst.write('#ifdef ANDROID\n') |
| dst.write(' #include <utils/misc.h>\n') |
| dst.write('#endif\n\n') |
| |
| dst.write('#if __BYTE_ORDER == __BIG_ENDIAN\n') |
| dst.write(' #define SK_CPU_BENDIAN\n') |
| dst.write(' #undef SK_CPU_LENDIAN\n') |
| dst.write('#else\n') |
| dst.write(' #define SK_CPU_LENDIAN\n') |
| dst.write(' #undef SK_CPU_BENDIAN\n') |
| dst.write('#endif\n\n') |
| |
| # Now add the defines from the gyp files. |
| for item in sorted(defines): |
| # Although our defines may have '=' in them, when written to the header |
| # there should be a space between the macro and what it replaces. |
| dst.write('#define ' + item.replace('=', ' ') + '\n') |
| |
| dst.write('\n#endif // ' + BUILD_GUARD + '\n') |