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Backends: Vulkan: SwapChainImageUsage assume VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT which is added automatically. (#8946, #8110, #8111, #8686)

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Amend e4e3c2c.
This commit is contained in:
ocornut
2025-09-29 14:57:03 +02:00
parent e4e3c2cc23
commit bad3c14ff6
7 changed files with 14 additions and 18 deletions
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2
backends/imgui_impl_vulkan.cpp
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@@ -1683,7 +1683,7 @@ void ImGui_ImplVulkanH_CreateWindowSwapChain(VkPhysicalDevice physical_device, V
info.imageFormat = wd->SurfaceFormat.format;
info.imageColorSpace = wd->SurfaceFormat.colorSpace;
info.imageArrayLayers = 1;
info.imageUsage = (image_usage != 0) ? image_usage : VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
info.imageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | image_usage;
info.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE; // Assume that graphics family == present family
info.preTransform = (cap.supportedTransforms & VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR) ? VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR : cap.currentTransform;
info.compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;

2
backends/imgui_impl_vulkan.h
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@@ -78,7 +78,7 @@ struct ImGui_ImplVulkan_PipelineInfo
#endif
// For Secondary viewports only (created/managed by backend)
VkImageUsageFlags SwapChainImageUsage; // 0 defaults to VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT. Add e.g. VK_IMAGE_USAGE_TRANSFER_SRC_BIT if you need to capture from viewports.
VkImageUsageFlags SwapChainImageUsage; // Extra flags for vkCreateSwapchainKHR() calls for secondary viewports. We automatically add VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT. You can add e.g. VK_IMAGE_USAGE_TRANSFER_SRC_BIT if you need to capture from viewports.
};
// Initialization data, for ImGui_ImplVulkan_Init()