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Update supported composite alpha flags

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There is currently no protocol for setting composite alpha blending mode
via Wayland but the expectation is that we use premultiplied alpha
so we only report the premultiplied and inherit composite alpha bits

Change-Id: If4e103b47cb8e99213ca96216abc06d812c68db1
Signed-off-by: Ben Davis <ben.davis@arm.com>
This commit is contained in:
Ben Davis 2021-11-09 10:10:55 +00:00 • committed by Rosen Zhelev
parent 0c8259a994
commit 0ef73036aa
1 changed files with 2 additions and 3 deletions
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5
wsi/wayland/surface_properties.cpp
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@ -88,10 +88,9 @@ VkResult surface_properties::get_surface_capabilities(VkPhysicalDevice physical_
pSurfaceCapabilities->supportedTransforms = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
pSurfaceCapabilities->currentTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
/* TODO: Composite alpha */
/* Composite alpha */
pSurfaceCapabilities->supportedCompositeAlpha = static_cast<VkCompositeAlphaFlagBitsKHR>(
VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR | VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR |
VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR | VK_COMPOSITE_ALPHA_POST_MULTIPLIED_BIT_KHR);
VK_COMPOSITE_ALPHA_PRE_MULTIPLIED_BIT_KHR | VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR);
/* Image usage flags */
pSurfaceCapabilities->supportedUsageFlags =