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82826be01f
This is a reland of commit 61728827d2
Changes made on top of previous commit
1. In src/program_serialize_data_version.py,
fix the script error on Windows: anglebug.com/7918.
2. In BUILD.gn, replace the 'write_file' with
'response_file_content'. See
https://gn.googlesource.com/gn/+/main/docs/reference.md#var_response_file_contents
3. In scripts/generate_android.bp.py, add code to
handle the special GN build flag {{response_file_name}}.
The code writes the list defined in srcs
(identified by $(in) in Android blueprint) into a
temp file named 'gn_response_file', and replaces the
{{response_file_name}} with 'gn_response_file'.
Original change's description
> Changes made on top of original commit
> 1. Enable execution permission on python script
> program_serialize_data_version.py
> 2. Remove unused list in libGLESv2.gni
> 3. In angle/BUILD.gn, change file path from
> "relative to angle_root", to "relative to root_build_dir",
> so that inside the script program_serialize_data_version.py,
> we don't have to find the absolute path of the code files for
> hashing.
> Original change's description
> > This change introduces a new variable ANGLE_PROGRAM_VERSION
> > to track the version of ANGLE source files that affect shader
> > program serialization/deserialization. This change include more
> > source files than necessary, to serve the purpose of a conservative
> > jumping off point. We will narrow down the list of files for
> > ANGLE_PROGRAM_VERSION hash generation in the future.
> > Add a new script program_serialize_data_version.py that will
> > be triggered during the build when the related source files changed.
> > The script will generate a hash and the hash size from the related
> > source files. In program serialization/deserialization and cache
> > key generation, we will use this hash value instead of the entire
> > ANGLE git hash. When the hash value changed, we know that the
> > related source files changed, and we should invalidate the program
> > cache and re-generate the blob cache / program binary.
> > Bug: angleproject:4981
> > Change-Id: I2fb609416738d459d3289190c232c2d797ba58e3
> > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4072215
> > Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
> > Reviewed-by: Cody Northrop <cnorthrop@google.com>
> > Reviewed-by: Jamie Madill <jmadill@chromium.org>
> > Commit-Queue: Yuxin Hu <yuxinhu@google.com>
> Bug: angleproject:4981
> Change-Id: Iaa9eb0ab33439197bc30d03064fc245ea7ef1ea8
> Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4113445
> Reviewed-by: Amirali Abdolrashidi <abdolrashidi@google.com>
> Reviewed-by: Cody Northrop <cnorthrop@google.com>
> Commit-Queue: Yuxin Hu <yuxinhu@google.com>
Bug: angleproject:4981
Change-Id: Ib5bba199be6d08a1e19807026df0e7b747dbc8a9
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4144078
Reviewed-by: Roman Lavrov <romanl@google.com>
Commit-Queue: Yuxin Hu <yuxinhu@google.com>
Reviewed-by: Cody Northrop <cnorthrop@google.com>
51 lines
2.1 KiB
Python
Executable File
51 lines
2.1 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright 2022 The ANGLE Project Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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# Generate ANGLEShaderProgramVersion.h with hash of files affecting data
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# used in serializing/deserializing shader programs.
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import hashlib
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import argparse
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import shlex
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# Generate a hash from a list of files defined in angle_code_files
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def GenerateHashOfAffectedFiles(angle_code_files):
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hash_md5 = hashlib.md5()
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for file in angle_code_files:
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hash_md5.update(file.encode(encoding='utf-8'))
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with open(file, 'r', encoding='utf-8') as f:
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for chunk in iter(lambda: f.read(4096), ""):
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hash_md5.update(chunk.encode())
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return hash_md5.hexdigest(), hash_md5.digest_size
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# The script is expecting two mandatory input arguments:
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# 1) output_file: the header file where we will add two constants that indicate
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# the version of the code files that affect shader program compilations
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# 2) response_file_name: a file that includes a list of code files that affect
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# shader program compilations
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parser = argparse.ArgumentParser(description='Generate the file ANGLEShaderProgramVersion.h')
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parser.add_argument(
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'output_file',
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help='path (relative to build directory) to output file name, stores ANGLE_PROGRAM_VERSION and ANGLE_PROGRAM_VERSION_HASH_SIZE'
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)
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parser.add_argument(
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'response_file_name',
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help='path (relative to build directory) to response file name. The response file stores a list of program files that ANGLE_PROGRAM_VERSION hashes over. See https://gn.googlesource.com/gn/+/main/docs/reference.md#var_response_file_contents'
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)
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args = parser.parse_args()
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output_file = args.output_file
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response_file_name = args.response_file_name
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with open(response_file_name, "r") as input_files_for_hash_generation:
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angle_code_files = shlex.split(input_files_for_hash_generation)
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digest, digest_size = GenerateHashOfAffectedFiles(angle_code_files)
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hfile = open(output_file, 'w')
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hfile.write('#define ANGLE_PROGRAM_VERSION "%s"\n' % digest)
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hfile.write('#define ANGLE_PROGRAM_VERSION_HASH_SIZE %d\n' % digest_size)
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hfile.close()
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