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vulkan: pick alpha composite flags based on available values

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This commit is contained in:
Liam 2023-04-13 16:38:20 -04:00
parent 54b4c84ab6
commit e37e1d24f9
1 changed files with 14 additions and 1 deletions
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15
src/video_core/renderer_vulkan/vk_swapchain.cpp
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@ -65,6 +65,18 @@ VkExtent2D ChooseSwapExtent(const VkSurfaceCapabilitiesKHR& capabilities, u32 wi
return extent;
}
VkCompositeAlphaFlagBitsKHR ChooseAlphaFlags(const VkSurfaceCapabilitiesKHR& capabilities) {
if (capabilities.supportedCompositeAlpha & VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR) {
return VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
} else if (capabilities.supportedCompositeAlpha & VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR) {
return VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR;
} else {
LOG_ERROR(Render_Vulkan, "Unknown composite alpha flags value {:#x}",
capabilities.supportedCompositeAlpha);
return VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
}
}
} // Anonymous namespace
Swapchain::Swapchain(VkSurfaceKHR surface_, const Device& device_, Scheduler& scheduler_,
@ -155,6 +167,7 @@ void Swapchain::CreateSwapchain(const VkSurfaceCapabilitiesKHR& capabilities, bo
const auto formats{physical_device.GetSurfaceFormatsKHR(surface)};
const auto present_modes{physical_device.GetSurfacePresentModesKHR(surface)};
const VkCompositeAlphaFlagBitsKHR alpha_flags{ChooseAlphaFlags(capabilities)};
const VkSurfaceFormatKHR surface_format{ChooseSwapSurfaceFormat(formats)};
present_mode = ChooseSwapPresentMode(present_modes);
@ -185,7 +198,7 @@ void Swapchain::CreateSwapchain(const VkSurfaceCapabilitiesKHR& capabilities, bo
.queueFamilyIndexCount = 0,
.pQueueFamilyIndices = nullptr,
.preTransform = capabilities.currentTransform,
.compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR,
.compositeAlpha = alpha_flags,
.presentMode = present_mode,
.clipped = VK_FALSE,
.oldSwapchain = nullptr,