Commit 7fe44a53d74e1837bf43334384b0c3335226a89e
2021-03-20T09:39:09
Vulkan: Don't acquire new BufferHelper for external buffers EXT_external_buffer spec - This extension allows the data store for an immutable buffer to be sourced from an external EGLClientBuffer, allowing sharing of EGL client buffers across APIs, across processes, and across different processing cores such as the GPU, CPU, and DSP. The intent is for a single backing memory to be reused across various processes and processors. Ensure that a glBuffer backed by external memory does not orphan the memory when glBuffer APIs like glBufferSubData or glMapBufferRangeEXT modify the glBuffer. Bug: angleproject:4380 Bug: angleproject:5073 Tests: ExternalBufferTestES31.*DoesNotCauseOrphaning*Vulkan Change-Id: I4e88f80d93ee1ba1208378121412926351d10af8 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2776192 Commit-Queue: Mohan Maiya <m.maiya@samsung.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>