tree 5f43c363f57200d0306e8a3d7a65eb802abc6a8d
parent ed4851c12e2ceb7b0824c83acce888c77f5d1698
author Amirali Abdolrashidi <abdolrashidi@google.com> 1679590313 -0700
committer Angle LUCI CQ <angle-scoped@luci-project-accounts.iam.gserviceaccount.com> 1680895291 +0000

Vulkan: Add more data to blob cache header

This is to potentially increase blob cache robustness against
collisions and partially modified data. This CL adds 7 bytes
per chunk (8 bytes in total). During decompression, the data
will be checked in order to determine if the cache data can
be used.

* Added chunk index to the header. (1 byte)
* Added CRC16 of the compressed data to the header. (2 bytes)
* Added the original (uncompressed) data size to the header. (4 bytes)

* Moved kBlobHeaderSize to the anonymous namespace.

* Added the following GN flag to enable CRC calculation for the cache.
  * angle_enable_crc_for_pipeline_cache (only available in debug mode)
  * Corresponds to kEnableCRCForPipelineCache.
  * When it is false, the CRC is set to 0.

Bug: b/246683126
Change-Id: I9aaf9cda52e0af07a2e1c2d0c39aca407e515701
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4378717
Commit-Queue: Amirali Abdolrashidi <abdolrashidi@google.com>
Reviewed-by: Charlie Lao <cclao@google.com>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>