tree d8d2279721a1fcc1040fe2f9d77ddc07d847f9d2
parent 18402d4dcfc1c11c799b4493d1d710cedc60d192
author Adam Gousetis <adamgousetis@google.com> 1558126609 +0000
committer CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> 1558126609 +0000

[Scenic][SCN-713]  Direct YUV support

This is a working (though hacky in places) implementation of direct YUV support, where a host image, on a UMA platform, is imported directly as device memory and used as the source for a sampler, without any copies involved.

However, it does so by both punching a not-so-pretty hole through Escher, and relies on quite a bit of hardcoded behavior to maintain some optimality. Further refinments are documented in a series of jira bugs noted in the comments (e.g. ES-199, ES-200, ES-201, SCN-1380, SCN-1387. SCN-1403).

Tests: New host_image_unittest, new scenic_pixel_test, extended shader_program_unittest (which also effectively does an integration test with the pipeline caching), run on multiple devices and as part of CQ, as well as a manual test of use_media_decoder, along with manual checks for Vulkan validation errors.

SCN-713 #done

WAS-Change-Id: I2557909245af036bba8d3b8ac9441dd05b6b92bd

Direct YUV test flow with sampler

WAS-Change-Id: I1e30f65e84ac13e90475df321909c5ccf0010df0
Change-Id: I8956205f73482b47589c28a6c170a93ab0884b17