Backends: Vulkan: removed misleading code incrementing frameindex. (ocornut#7834)

ocornut · ocornut · commit b9badb597abf · 2025-01-15T17:08:04.000+01:00
Thanks NostraMagister!
diff --git a/backends/imgui_impl_vulkan.cpp b/backends/imgui_impl_vulkan.cpp
@@ -1820,7 +1820,7 @@ static void ImGui_ImplVulkan_RenderWindow(ImGuiViewport* viewport, void*)
         vd->SwapChainNeedRebuild = false;
     }
 
-    ImGui_ImplVulkanH_Frame* fd = &wd->Frames[wd->FrameIndex];
+    ImGui_ImplVulkanH_Frame* fd = nullptr;
     ImGui_ImplVulkanH_FrameSemaphores* fsd = &wd->FrameSemaphores[wd->SemaphoreIndex];
     {
         {
@@ -1983,8 +1983,6 @@ static void ImGui_ImplVulkan_SwapBuffers(ImGuiViewport* viewport, void*)
     {
         check_vk_result(err);
     }
-
-    wd->FrameIndex = (wd->FrameIndex + 1) % wd->ImageCount;             // This is for the next vkWaitForFences()
     wd->SemaphoreIndex = (wd->SemaphoreIndex + 1) % wd->SemaphoreCount; // Now we can use the next set of semaphores
 }
 

Original file line number	Diff line number	Diff line change
`@@ -1820,7 +1820,7 @@ static void ImGui_ImplVulkan_RenderWindow(ImGuiViewport* viewport, void*)`
`1820`	`1820`	`vd->SwapChainNeedRebuild = false;`
`1821`	`1821`	`}`
`1822`	`1822`
`1823`		`- ImGui_ImplVulkanH_Frame* fd = &wd->Frames[wd->FrameIndex];`
	`1823`	`+ ImGui_ImplVulkanH_Frame* fd = nullptr;`
`1824`	`1824`	`ImGui_ImplVulkanH_FrameSemaphores* fsd = &wd->FrameSemaphores[wd->SemaphoreIndex];`
`1825`	`1825`	`{`
`1826`	`1826`	`{`
`@@ -1983,8 +1983,6 @@ static void ImGui_ImplVulkan_SwapBuffers(ImGuiViewport* viewport, void*)`
`1983`	`1983`	`{`
`1984`	`1984`	`check_vk_result(err);`
`1985`	`1985`	`}`
`1986`		`-`
`1987`		`- wd->FrameIndex = (wd->FrameIndex + 1) % wd->ImageCount; // This is for the next vkWaitForFences()`
`1988`	`1986`	`wd->SemaphoreIndex = (wd->SemaphoreIndex + 1) % wd->SemaphoreCount; // Now we can use the next set of semaphores`
`1989`	`1987`	`}`
`1990`	`1988`