[Bug 104355] VK_FORMAT_A1R5G5B5_UNORM_PACK16 has red and blue swapped

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104355

--- Comment #3 from hrydgard at gmail.com ---
Should probably also mention that I am using a component mapping in the image
View:

static const VkComponentMapping VULKAN_1555_SWIZZLE = { VK_COMPONENT_SWIZZLE_B,
VK_COMPONENT_SWIZZLE_G, VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_A };

This is assigned to VkImageViewCreateInfo.components when creating the image
view used to read this texture.

This mapping does an R/B swap to make it match the PSP's channel order. So an
alternative explanation is that this channel mapping isn't being applied
correctly.

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