Commit 146a01ea1dc2ba22fee547edf8d5582ddce09714
2023-11-03T15:49:30
Vulkan: Do not pad pipelineCacheData with zeroes Instead of padding, reduce buffer size to the one returned from `pipelineCacheData`. Padding `pipelineCacheData` with zeroes in cases when `vkGetPipelineCacheData()` returns less data then requested, may invalidate the entire buffer. Next time padded buffer is used in `vkCreatePipelineCache()` call, it may be rejected as invalid. I have checked the above by deliberately increasing `pipelineCacheSize` by 42 before `vkGetPipelineCacheData()`. After zeroing these 42 bytes, I passed padded buffer to the `vkCreatePipelineCache()`. Result was successful, however resulting cache size was always 52 bytes instead of the expected `pipelineCacheSize`. Bug: angleproject:2516 Change-Id: Ia1668ca96fc54e9b818ba0c8441e27c9dc2aedc8 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5002451 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Charlie Lao <cclao@google.com> Commit-Queue: Igor Nazarov <i.nazarov@samsung.com>