tree ac79ba1b92fa2fe70340f4a1553c1449f56513ce
parent 0d4a7b0ba5b73425c1c5aa641843f971f0bdda4d
author Brian Ho <hob@chromium.org> 1574352130 +0000
committer Commit Bot service account <commit-bot@chromium.org> 1574352130 +0000

Implement a dma-buf MemoryService

This CL implements the MemoryService for importing memory and
creating VkImages from a dma-buf handle. Under the hood, it uses the
VK_EXT_external_memory_dma_buf and
VK_EXT_image_drm_format_modifier extensions to find a memory type
that supports dma-buf import. In addition, the extensions are also
used to properly specify the stride and tiling of the dma-buf to
vkAllocateMemory and vkCreateImage.

BUG=chromium:996470

Change-Id: Ie72d73117a4cbafcb40468aab0952b783351d499
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/13785
Commit-Queue: Brian Ho <hob@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>