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(Breaking) Backends: Vulkan: added 'VkImageUsageFlags image_usage' parameter to ImGui_ImplVulkanH_CreateOrResizeWindow(). (#8946, #8110, #8111, #8686)

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Default to VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT.
This commit is contained in:
ocornut
2025-09-26 17:32:39 +02:00
parent 01686c6294
commit 5fe962216a
7 changed files with 27 additions and 15 deletions
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12
backends/imgui_impl_vulkan.cpp
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@@ -27,6 +27,7 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2025-09-26: *BREAKING CHANGE*: helper ImGui_ImplVulkanH_CreateOrResizeWindow() added a VkImageUsageFlags image_usage` argument, default to VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT if 0.
// 2025-09-26: Vulkan: Added a way to customize shaders by filling ImGui_ImplVulkan_InitInfo::CustomShaderVertCreateInfo/CustomShaderFragCreateInfo. (#8585)
// 2025-09-18: Call platform_io.ClearRendererHandlers() on shutdown.
// 2025-09-04: Vulkan: Added ImGui_ImplVulkan_CreateMainPipeline(). (#8110, #8111)
@@ -118,7 +119,7 @@ void ImGui_ImplVulkan_DestroyFrameRenderBuffers(VkDevice device, ImGui_ImplVulka
void ImGui_ImplVulkan_DestroyWindowRenderBuffers(VkDevice device, ImGui_ImplVulkan_WindowRenderBuffers* buffers, const VkAllocationCallbacks* allocator);
void ImGui_ImplVulkanH_DestroyFrame(VkDevice device, ImGui_ImplVulkanH_Frame* fd, const VkAllocationCallbacks* allocator);
void ImGui_ImplVulkanH_DestroyFrameSemaphores(VkDevice device, ImGui_ImplVulkanH_FrameSemaphores* fsd, const VkAllocationCallbacks* allocator);
void ImGui_ImplVulkanH_CreateWindowSwapChain(VkPhysicalDevice physical_device, VkDevice device, ImGui_ImplVulkanH_Window* wd, const VkAllocationCallbacks* allocator, int w, int h, uint32_t min_image_count);
void ImGui_ImplVulkanH_CreateWindowSwapChain(VkPhysicalDevice physical_device, VkDevice device, ImGui_ImplVulkanH_Window* wd, const VkAllocationCallbacks* allocator, int w, int h, uint32_t min_image_count, VkImageUsageFlags image_usage);
void ImGui_ImplVulkanH_CreateWindowCommandBuffers(VkPhysicalDevice physical_device, VkDevice device, ImGui_ImplVulkanH_Window* wd, uint32_t queue_family, const VkAllocationCallbacks* allocator);
// Vulkan prototypes for use with custom loaders
@@ -1605,7 +1606,7 @@ int ImGui_ImplVulkanH_GetMinImageCountFromPresentMode(VkPresentModeKHR present_m
}
// Also destroy old swap chain and in-flight frames data, if any.
void ImGui_ImplVulkanH_CreateWindowSwapChain(VkPhysicalDevice physical_device, VkDevice device, ImGui_ImplVulkanH_Window* wd, const VkAllocationCallbacks* allocator, int w, int h, uint32_t min_image_count)
void ImGui_ImplVulkanH_CreateWindowSwapChain(VkPhysicalDevice physical_device, VkDevice device, ImGui_ImplVulkanH_Window* wd, const VkAllocationCallbacks* allocator, int w, int h, uint32_t min_image_count, VkImageUsageFlags image_usage)
{
VkResult err;
VkSwapchainKHR old_swapchain = wd->Swapchain;
@@ -1644,7 +1645,7 @@ void ImGui_ImplVulkanH_CreateWindowSwapChain(VkPhysicalDevice physical_device, V
info.imageFormat = wd->SurfaceFormat.format;
info.imageColorSpace = wd->SurfaceFormat.colorSpace;
info.imageArrayLayers = 1;
info.imageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
info.imageUsage = (image_usage != 0) ? image_usage : VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
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;
@@ -1772,11 +1773,12 @@ void ImGui_ImplVulkanH_CreateWindowSwapChain(VkPhysicalDevice physical_device, V
}
// Create or resize window
void ImGui_ImplVulkanH_CreateOrResizeWindow(VkInstance instance, VkPhysicalDevice physical_device, VkDevice device, ImGui_ImplVulkanH_Window* wd, uint32_t queue_family, const VkAllocationCallbacks* allocator, int width, int height, uint32_t min_image_count)
// - 2025/09/26: v1.92.4 added a trailing 'VkImageUsageFlags image_usage' parameter which is usually VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT.
void ImGui_ImplVulkanH_CreateOrResizeWindow(VkInstance instance, VkPhysicalDevice physical_device, VkDevice device, ImGui_ImplVulkanH_Window* wd, uint32_t queue_family, const VkAllocationCallbacks* allocator, int width, int height, uint32_t min_image_count, VkImageUsageFlags image_usage)
{
IM_ASSERT(g_FunctionsLoaded && "Need to call ImGui_ImplVulkan_LoadFunctions() if IMGUI_IMPL_VULKAN_NO_PROTOTYPES or VK_NO_PROTOTYPES are set!");
(void)instance;
ImGui_ImplVulkanH_CreateWindowSwapChain(physical_device, device, wd, allocator, width, height, min_image_count);
ImGui_ImplVulkanH_CreateWindowSwapChain(physical_device, device, wd, allocator, width, height, min_image_count, image_usage);
ImGui_ImplVulkanH_CreateWindowCommandBuffers(physical_device, device, wd, queue_family, allocator);
// FIXME: to submit the command buffer, we need a queue. In the examples folder, the ImGui_ImplVulkanH_CreateOrResizeWindow function is called