tree 850f5c1975ff73e457fb46024eb90e3b5aa7673d
parent 842c59b99c645a2c9f7ad7c60ce29ce17acdb9c2
author Roman Kiryanov <rkir@google.com> 1561759172 -0700
committer Roman Kiryanov <rkir@google.com> 1561764104 -0700

Do not create YcbcrConversion for RGB565 passed as external format

Since we don't support external formats (we replace
them to internal ones and cut off VkExternalFormatANDROID
from struct chains), a vkCreateSampler call with
a conversion based on an external format with
another external format provided does not make sence.

This change returns a predefined value
(VK_YCBCR_CONVERSION_DO_NOTHING of type
VkSamplerYcbcrConversion) for CreateSamplerYcbcrConversion
when RGB565 is passed as an external format.

This special value (VK_YCBCR_CONVERSION_DO_NOTHING) is
checked later in vkCreateSampler and the whole
VkSamplerYcbcrConversionInfo is discarded.

Bug: 134771579
Test: CtsGraphicsTestCases android.graphics.cts.BasicVulkanGpuTest
Change-Id: I6c0a085866178391eb330b0005a687914be5e865
Signed-off-by: Roman Kiryanov <rkir@google.com>