The open source OpenXR runtime
c/main: On Android prefer RGBA over BGRA VkSwapchains
BGRA is only supported on 0.1% of devices according to GPUinfo.
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src/xrt/compositor/main/comp_settings.c
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src/xrt/compositor/main/comp_settings.c
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if (s->use_compute) {
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s->color_format = VK_FORMAT_B8G8R8A8_UNORM;
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} else {
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#if defined(XRT_OS_ANDROID)
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/*
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* On Android the most ubiquitous sRGB format is R8G8B8A8_SRGB.
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* https://vulkan.gpuinfo.org/listsurfaceformats.php?platform=android
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*/
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s->color_format = VK_FORMAT_R8G8B8A8_SRGB;
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#elif defined(XRT_OS_LINUX) || defined(XRT_OS_WINDOWS)
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/*
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* On Linux the most ubiquitous sRGB format is B8G8R8A8_SRGB.
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* https://vulkan.gpuinfo.org/listsurfaceformats.php?platform=linux
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*
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* On Windows the most ubiquitous sRGB format is B8G8R8A8_SRGB.
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* https://vulkan.gpuinfo.org/listsurfaceformats.php?platform=windows
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*/
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s->color_format = VK_FORMAT_B8G8R8A8_SRGB;
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#else
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#error "Need to pick default swapchain format for this platform!"
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#endif
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}
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s->display = debug_get_num_option_xcb_display();