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Backends: Vulkan: Deep-copy ImGui_ImplVulkan_InitInfo::PipelineRenderingCreateInfo's pColorAttachmentFormats buffer when set, in order to reduce common user-error of specifying a pointer to data that gets out of scope. (#8282)

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# Conflicts:
#	backends/imgui_impl_vulkan.cpp
#	docs/CHANGELOG.txt
This commit is contained in:
ocornut 2025-04-07 16:38:05 +02:00
parent 9701810bc3
commit 91652c317e
2 changed files with 16 additions and 0 deletions
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13
backends/imgui_impl_vulkan.cpp
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@ -26,6 +26,7 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2025-04-07: Vulkan: Deep-copy ImGui_ImplVulkan_InitInfo::PipelineRenderingCreateInfo's pColorAttachmentFormats buffer when set, in order to reduce common user-error of specifying a pointer to data that gets out of scope. (#8282)
// 2025-02-14: *BREAKING CHANGE*: Added uint32_t api_version to ImGui_ImplVulkan_LoadFunctions().
// 2025-02-13: Vulkan: Added ApiVersion field in ImGui_ImplVulkan_InitInfo. Default to header version if unspecified. Dynamic rendering path loads "vkCmdBeginRendering/vkCmdEndRendering" (without -KHR suffix) on API 1.3. (#8326)
// 2025-01-09: Vulkan: Added IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE to clarify how many image sampler descriptors are expected to be available in descriptor pool. (#6642)
@ -1174,6 +1175,16 @@ bool ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo* info)
IM_ASSERT(info->RenderPass != VK_NULL_HANDLE);
bd->VulkanInitInfo = *info;
ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo;
#ifdef IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING
if (bd->VulkanInitInfo.PipelineRenderingCreateInfo.pColorAttachmentFormats != NULL)
{
// Deep copy buffer to reduce error-rate for end user (#8282)
VkFormat* formats_copy = (VkFormat*)IM_ALLOC(sizeof(VkFormat) * v->PipelineRenderingCreateInfo.colorAttachmentCount);
memcpy(formats_copy, v->PipelineRenderingCreateInfo.pColorAttachmentFormats, sizeof(VkFormat) * v->PipelineRenderingCreateInfo.colorAttachmentCount);
v->PipelineRenderingCreateInfo.pColorAttachmentFormats = formats_copy;
}
#endif
ImGui_ImplVulkan_CreateDeviceObjects();
@ -1187,6 +1198,8 @@ void ImGui_ImplVulkan_Shutdown()
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplVulkan_DestroyDeviceObjects();
IM_FREE((void*)bd->VulkanInitInfo.PipelineRenderingCreateInfo.pColorAttachmentFormats);
io.BackendRendererName = nullptr;
io.BackendRendererUserData = nullptr;
io.BackendFlags &= ~ImGuiBackendFlags_RendererHasVtxOffset;

3
docs/CHANGELOG.txt
View file

@ -68,6 +68,9 @@ Other changes:
memory ownership change. (#8530, #7801) [@Green-Sky]
- Backends: SDLGPU3: Made ImGui_ImplSDLGPU3_PrepareDrawData() reuse GPU Transfer Buffers which
were unusually slow to recreate every frame. Much faster now. (#8534) [@ocornut, @TheMode]
- Backends: Vulkan: Deep-copy ImGui_ImplVulkan_InitInfo::PipelineRenderingCreateInfo's
pColorAttachmentFormats buffer when set, in order to reduce common user-error of
specifying a pointer to data that gets out of scope. (#8282)
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