| // dear imgui: Renderer Backend for Vulkan |
| // This needs to be used along with a Platform Backend (e.g. GLFW, SDL, Win32, custom..) |
| |
| // Implemented features: |
| // [x] Renderer: User texture binding. Use 'VkDescriptorSet' as ImTextureID. Read the FAQ about ImTextureID! See https://github.com/ocornut/imgui/pull/914 for discussions. |
| // [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices. |
| // [X] Renderer: Expose selected render state for draw callbacks to use. Access in '(ImGui_ImplXXXX_RenderState*)GetPlatformIO().Renderer_RenderState'. |
| // [x] Renderer: Multi-viewport / platform windows. With issues (flickering when creating a new viewport). |
| |
| // The aim of imgui_impl_vulkan.h/.cpp is to be usable in your engine without any modification. |
| // IF YOU FEEL YOU NEED TO MAKE ANY CHANGE TO THIS CODE, please share them and your feedback at https://github.com/ocornut/imgui/ |
| |
| // You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this. |
| // Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need. |
| // Learn about Dear ImGui: |
| // - FAQ https://dearimgui.com/faq |
| // - Getting Started https://dearimgui.com/getting-started |
| // - Documentation https://dearimgui.com/docs (same as your local docs/ folder). |
| // - Introduction, links and more at the top of imgui.cpp |
| |
| // Important note to the reader who wish to integrate imgui_impl_vulkan.cpp/.h in their own engine/app. |
| // - Common ImGui_ImplVulkan_XXX functions and structures are used to interface with imgui_impl_vulkan.cpp/.h. |
| // You will use those if you want to use this rendering backend in your engine/app. |
| // - Helper ImGui_ImplVulkanH_XXX functions and structures are only used by this example (main.cpp) and by |
| // the backend itself (imgui_impl_vulkan.cpp), but should PROBABLY NOT be used by your own engine/app code. |
| // Read comments in imgui_impl_vulkan.h. |
| |
| // CHANGELOG |
| // (minor and older changes stripped away, please see git history for details) |
| // 2024-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface. |
| // 2024-10-07: Vulkan: Changed default texture sampler to Clamp instead of Repeat/Wrap. |
| // 2024-10-07: Vulkan: Expose selected render state in ImGui_ImplVulkan_RenderState, which you can access in 'void* platform_io.Renderer_RenderState' during draw callbacks. |
| // 2024-10-07: Vulkan: Compiling with '#define ImTextureID=ImU64' is unnecessary now that dear imgui defaults ImTextureID to u64 instead of void*. |
| // 2024-04-19: Vulkan: Added convenience support for Volk via IMGUI_IMPL_VULKAN_USE_VOLK define (you can also use IMGUI_IMPL_VULKAN_NO_PROTOTYPES + wrap Volk via ImGui_ImplVulkan_LoadFunctions().) |
| // 2024-02-14: *BREAKING CHANGE*: Moved RenderPass parameter from ImGui_ImplVulkan_Init() function to ImGui_ImplVulkan_InitInfo structure. Not required when using dynamic rendering. |
| // 2024-02-12: *BREAKING CHANGE*: Dynamic rendering now require filling PipelineRenderingCreateInfo structure. |
| // 2024-01-19: Vulkan: Fixed vkAcquireNextImageKHR() validation errors in VulkanSDK 1.3.275 by allocating one extra semaphore than in-flight frames. (#7236) |
| // 2024-01-11: Vulkan: Fixed vkMapMemory() calls unnecessarily using full buffer size (#3957). Fixed MinAllocationSize handing (#7189). |
| // 2024-01-03: Vulkan: Added MinAllocationSize field in ImGui_ImplVulkan_InitInfo to workaround zealous "best practice" validation layer. (#7189, #4238) |
| // 2024-01-03: Vulkan: Stopped creating command pools with VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT as we don't reset them. |
| // 2023-11-29: Vulkan: Fixed mismatching allocator passed to vkCreateCommandPool() vs vkDestroyCommandPool(). (#7075) |
| // 2023-11-10: *BREAKING CHANGE*: Removed parameter from ImGui_ImplVulkan_CreateFontsTexture(): backend now creates its own command-buffer to upload fonts. |
| // *BREAKING CHANGE*: Removed ImGui_ImplVulkan_DestroyFontUploadObjects() which is now unnecessary as we create and destroy those objects in the backend. |
| // ImGui_ImplVulkan_CreateFontsTexture() is automatically called by NewFrame() the first time. |
| // You can call ImGui_ImplVulkan_CreateFontsTexture() again to recreate the font atlas texture. |
| // Added ImGui_ImplVulkan_DestroyFontsTexture() but you probably never need to call this. |
| // 2023-07-04: Vulkan: Added optional support for VK_KHR_dynamic_rendering. User needs to set init_info->UseDynamicRendering = true and init_info->ColorAttachmentFormat. |
| // 2023-01-02: Vulkan: Fixed sampler passed to ImGui_ImplVulkan_AddTexture() not being honored + removed a bunch of duplicate code. |
| // 2022-10-11: Using 'nullptr' instead of 'NULL' as per our switch to C++11. |
| // 2022-10-04: Vulkan: Added experimental ImGui_ImplVulkan_RemoveTexture() for api symmetry. (#914, #5738). |
| // 2022-01-20: Vulkan: Added support for ImTextureID as VkDescriptorSet. User need to call ImGui_ImplVulkan_AddTexture(). Building for 32-bit targets requires '#define ImTextureID ImU64'. (#914). |
| // 2021-10-15: Vulkan: Call vkCmdSetScissor() at the end of render a full-viewport to reduce likehood of issues with people using VK_DYNAMIC_STATE_SCISSOR in their app without calling vkCmdSetScissor() explicitly every frame. |
| // 2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX). |
| // 2021-03-22: Vulkan: Fix mapped memory validation error when buffer sizes are not multiple of VkPhysicalDeviceLimits::nonCoherentAtomSize. |
| // 2021-02-18: Vulkan: Change blending equation to preserve alpha in output buffer. |
| // 2021-01-27: Vulkan: Added support for custom function load and IMGUI_IMPL_VULKAN_NO_PROTOTYPES by using ImGui_ImplVulkan_LoadFunctions(). |
| // 2020-11-11: Vulkan: Added support for specifying which subpass to reference during VkPipeline creation. |
| // 2020-09-07: Vulkan: Added VkPipeline parameter to ImGui_ImplVulkan_RenderDrawData (default to one passed to ImGui_ImplVulkan_Init). |
| // 2020-05-04: Vulkan: Fixed crash if initial frame has no vertices. |
| // 2020-04-26: Vulkan: Fixed edge case where render callbacks wouldn't be called if the ImDrawData didn't have vertices. |
| // 2019-08-01: Vulkan: Added support for specifying multisample count. Set ImGui_ImplVulkan_InitInfo::MSAASamples to one of the VkSampleCountFlagBits values to use, default is non-multisampled as before. |
| // 2019-05-29: Vulkan: Added support for large mesh (64K+ vertices), enable ImGuiBackendFlags_RendererHasVtxOffset flag. |
| // 2019-04-30: Vulkan: Added support for special ImDrawCallback_ResetRenderState callback to reset render state. |
| // 2019-04-04: *BREAKING CHANGE*: Vulkan: Added ImageCount/MinImageCount fields in ImGui_ImplVulkan_InitInfo, required for initialization (was previously a hard #define IMGUI_VK_QUEUED_FRAMES 2). Added ImGui_ImplVulkan_SetMinImageCount(). |
| // 2019-04-04: Vulkan: Added VkInstance argument to ImGui_ImplVulkanH_CreateWindow() optional helper. |
| // 2019-04-04: Vulkan: Avoid passing negative coordinates to vkCmdSetScissor, which debug validation layers do not like. |
| // 2019-04-01: Vulkan: Support for 32-bit index buffer (#define ImDrawIdx unsigned int). |
| // 2019-02-16: Vulkan: Viewport and clipping rectangles correctly using draw_data->FramebufferScale to allow retina display. |
| // 2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window. |
| // 2018-08-25: Vulkan: Fixed mishandled VkSurfaceCapabilitiesKHR::maxImageCount=0 case. |
| // 2018-06-22: Inverted the parameters to ImGui_ImplVulkan_RenderDrawData() to be consistent with other backends. |
| // 2018-06-08: Misc: Extracted imgui_impl_vulkan.cpp/.h away from the old combined GLFW+Vulkan example. |
| // 2018-06-08: Vulkan: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle. |
| // 2018-03-03: Vulkan: Various refactor, created a couple of ImGui_ImplVulkanH_XXX helper that the example can use and that viewport support will use. |
| // 2018-03-01: Vulkan: Renamed ImGui_ImplVulkan_Init_Info to ImGui_ImplVulkan_InitInfo and fields to match more closely Vulkan terminology. |
| // 2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback, ImGui_ImplVulkan_Render() calls ImGui_ImplVulkan_RenderDrawData() itself. |
| // 2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves. |
| // 2017-05-15: Vulkan: Fix scissor offset being negative. Fix new Vulkan validation warnings. Set required depth member for buffer image copy. |
| // 2016-11-13: Vulkan: Fix validation layer warnings and errors and redeclare gl_PerVertex. |
| // 2016-10-18: Vulkan: Add location decorators & change to use structs as in/out in glsl, update embedded spv (produced with glslangValidator -x). Null the released resources. |
| // 2016-08-27: Vulkan: Fix Vulkan example for use when a depth buffer is active. |
| |
| #include "imgui.h" |
| #ifndef IMGUI_DISABLE |
| #include "imgui_impl_vulkan.h" |
| #include <stdio.h> |
| #ifndef IM_MAX |
| #define IM_MAX(A, B) (((A) >= (B)) ? (A) : (B)) |
| #endif |
| |
| // Visual Studio warnings |
| #ifdef _MSC_VER |
| #pragma warning (disable: 4127) // condition expression is constant |
| #endif |
| |
| // Forward Declarations |
| struct ImGui_ImplVulkan_FrameRenderBuffers; |
| struct ImGui_ImplVulkan_WindowRenderBuffers; |
| bool ImGui_ImplVulkan_CreateDeviceObjects(); |
| void ImGui_ImplVulkan_DestroyDeviceObjects(); |
| void ImGui_ImplVulkan_DestroyFrameRenderBuffers(VkDevice device, ImGui_ImplVulkan_FrameRenderBuffers* buffers, const VkAllocationCallbacks* allocator); |
| 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_DestroyAllViewportsRenderBuffers(VkDevice device, 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_CreateWindowCommandBuffers(VkPhysicalDevice physical_device, VkDevice device, ImGui_ImplVulkanH_Window* wd, uint32_t queue_family, const VkAllocationCallbacks* allocator); |
| |
| // Vulkan prototypes for use with custom loaders |
| // (see description of IMGUI_IMPL_VULKAN_NO_PROTOTYPES in imgui_impl_vulkan.h |
| #if defined(VK_NO_PROTOTYPES) && !defined(VOLK_H_) |
| #define IMGUI_IMPL_VULKAN_USE_LOADER |
| static bool g_FunctionsLoaded = false; |
| #else |
| static bool g_FunctionsLoaded = true; |
| #endif |
| #ifdef IMGUI_IMPL_VULKAN_USE_LOADER |
| #define IMGUI_VULKAN_FUNC_MAP(IMGUI_VULKAN_FUNC_MAP_MACRO) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkAllocateCommandBuffers) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkAllocateDescriptorSets) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkAllocateMemory) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkAcquireNextImageKHR) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkBeginCommandBuffer) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkBindBufferMemory) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkBindImageMemory) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCmdBeginRenderPass) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCmdBindDescriptorSets) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCmdBindIndexBuffer) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCmdBindPipeline) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCmdBindVertexBuffers) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCmdCopyBufferToImage) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCmdDrawIndexed) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCmdEndRenderPass) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCmdPipelineBarrier) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCmdPushConstants) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCmdSetScissor) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCmdSetViewport) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCreateBuffer) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCreateCommandPool) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCreateDescriptorSetLayout) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCreateFence) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCreateFramebuffer) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCreateGraphicsPipelines) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCreateImage) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCreateImageView) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCreatePipelineLayout) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCreateRenderPass) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCreateSampler) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCreateSemaphore) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCreateShaderModule) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkCreateSwapchainKHR) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkDestroyBuffer) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkDestroyCommandPool) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkDestroyDescriptorSetLayout) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkDestroyFence) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkDestroyFramebuffer) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkDestroyImage) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkDestroyImageView) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkDestroyPipeline) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkDestroyPipelineLayout) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkDestroyRenderPass) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkDestroySampler) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkDestroySemaphore) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkDestroyShaderModule) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkDestroySurfaceKHR) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkDestroySwapchainKHR) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkDeviceWaitIdle) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkEndCommandBuffer) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkFlushMappedMemoryRanges) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkFreeCommandBuffers) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkFreeDescriptorSets) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkFreeMemory) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkGetBufferMemoryRequirements) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkGetImageMemoryRequirements) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkGetPhysicalDeviceMemoryProperties) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkGetPhysicalDeviceSurfaceCapabilitiesKHR) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkGetPhysicalDeviceSurfaceFormatsKHR) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkGetPhysicalDeviceSurfacePresentModesKHR) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkGetPhysicalDeviceSurfaceSupportKHR) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkGetSwapchainImagesKHR) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkMapMemory) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkQueuePresentKHR) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkQueueSubmit) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkQueueWaitIdle) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkResetCommandPool) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkResetFences) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkUnmapMemory) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkUpdateDescriptorSets) \ |
| IMGUI_VULKAN_FUNC_MAP_MACRO(vkWaitForFences) |
| |
| // Define function pointers |
| #define IMGUI_VULKAN_FUNC_DEF(func) static PFN_##func func; |
| IMGUI_VULKAN_FUNC_MAP(IMGUI_VULKAN_FUNC_DEF) |
| #undef IMGUI_VULKAN_FUNC_DEF |
| #endif // IMGUI_IMPL_VULKAN_USE_LOADER |
| |
| #ifdef IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING |
| static PFN_vkCmdBeginRenderingKHR ImGuiImplVulkanFuncs_vkCmdBeginRenderingKHR; |
| static PFN_vkCmdEndRenderingKHR ImGuiImplVulkanFuncs_vkCmdEndRenderingKHR; |
| #endif |
| |
| // Reusable buffers used for rendering 1 current in-flight frame, for ImGui_ImplVulkan_RenderDrawData() |
| // [Please zero-clear before use!] |
| struct ImGui_ImplVulkan_FrameRenderBuffers |
| { |
| VkDeviceMemory VertexBufferMemory; |
| VkDeviceMemory IndexBufferMemory; |
| VkDeviceSize VertexBufferSize; |
| VkDeviceSize IndexBufferSize; |
| VkBuffer VertexBuffer; |
| VkBuffer IndexBuffer; |
| }; |
| |
| // Each viewport will hold 1 ImGui_ImplVulkanH_WindowRenderBuffers |
| // [Please zero-clear before use!] |
| struct ImGui_ImplVulkan_WindowRenderBuffers |
| { |
| uint32_t Index; |
| uint32_t Count; |
| ImGui_ImplVulkan_FrameRenderBuffers* FrameRenderBuffers; |
| }; |
| |
| // For multi-viewport support: |
| // Helper structure we store in the void* RendererUserData field of each ImGuiViewport to easily retrieve our backend data. |
| struct ImGui_ImplVulkan_ViewportData |
| { |
| ImGui_ImplVulkanH_Window Window; // Used by secondary viewports only |
| ImGui_ImplVulkan_WindowRenderBuffers RenderBuffers; // Used by all viewports |
| bool WindowOwned; |
| bool SwapChainNeedRebuild; // Flag when viewport swapchain resized in the middle of processing a frame |
| |
| ImGui_ImplVulkan_ViewportData() { WindowOwned = SwapChainNeedRebuild = false; memset(&RenderBuffers, 0, sizeof(RenderBuffers)); } |
| ~ImGui_ImplVulkan_ViewportData() { } |
| }; |
| |
| // Vulkan data |
| struct ImGui_ImplVulkan_Data |
| { |
| ImGui_ImplVulkan_InitInfo VulkanInitInfo; |
| VkDeviceSize BufferMemoryAlignment; |
| VkPipelineCreateFlags PipelineCreateFlags; |
| VkDescriptorSetLayout DescriptorSetLayout; |
| VkPipelineLayout PipelineLayout; |
| VkPipeline Pipeline; // pipeline for main render pass (created by app) |
| VkPipeline PipelineForViewports; // pipeline for secondary viewports (created by backend) |
| VkShaderModule ShaderModuleVert; |
| VkShaderModule ShaderModuleFrag; |
| |
| // Font data |
| VkSampler FontSampler; |
| VkDeviceMemory FontMemory; |
| VkImage FontImage; |
| VkImageView FontView; |
| VkDescriptorSet FontDescriptorSet; |
| VkCommandPool FontCommandPool; |
| VkCommandBuffer FontCommandBuffer; |
| |
| // Render buffers for main window |
| ImGui_ImplVulkan_WindowRenderBuffers MainWindowRenderBuffers; |
| |
| ImGui_ImplVulkan_Data() |
| { |
| memset((void*)this, 0, sizeof(*this)); |
| BufferMemoryAlignment = 256; |
| } |
| }; |
| |
| //----------------------------------------------------------------------------- |
| // SHADERS |
| //----------------------------------------------------------------------------- |
| |
| // Forward Declarations |
| static void ImGui_ImplVulkan_InitMultiViewportSupport(); |
| static void ImGui_ImplVulkan_ShutdownMultiViewportSupport(); |
| |
| // backends/vulkan/glsl_shader.vert, compiled with: |
| // # glslangValidator -V -x -o glsl_shader.vert.u32 glsl_shader.vert |
| /* |
| #version 450 core |
| layout(location = 0) in vec2 aPos; |
| layout(location = 1) in vec2 aUV; |
| layout(location = 2) in vec4 aColor; |
| layout(push_constant) uniform uPushConstant { vec2 uScale; vec2 uTranslate; } pc; |
| |
| out gl_PerVertex { vec4 gl_Position; }; |
| layout(location = 0) out struct { vec4 Color; vec2 UV; } Out; |
| |
| void main() |
| { |
| Out.Color = aColor; |
| Out.UV = aUV; |
| gl_Position = vec4(aPos * pc.uScale + pc.uTranslate, 0, 1); |
| } |
| */ |
| static uint32_t __glsl_shader_vert_spv[] = |
| { |
| 0x07230203,0x00010000,0x00080001,0x0000002e,0x00000000,0x00020011,0x00000001,0x0006000b, |
| 0x00000001,0x4c534c47,0x6474732e,0x3035342e,0x00000000,0x0003000e,0x00000000,0x00000001, |
| 0x000a000f,0x00000000,0x00000004,0x6e69616d,0x00000000,0x0000000b,0x0000000f,0x00000015, |
| 0x0000001b,0x0000001c,0x00030003,0x00000002,0x000001c2,0x00040005,0x00000004,0x6e69616d, |
| 0x00000000,0x00030005,0x00000009,0x00000000,0x00050006,0x00000009,0x00000000,0x6f6c6f43, |
| 0x00000072,0x00040006,0x00000009,0x00000001,0x00005655,0x00030005,0x0000000b,0x0074754f, |
| 0x00040005,0x0000000f,0x6c6f4361,0x0000726f,0x00030005,0x00000015,0x00565561,0x00060005, |
| 0x00000019,0x505f6c67,0x65567265,0x78657472,0x00000000,0x00060006,0x00000019,0x00000000, |
| 0x505f6c67,0x7469736f,0x006e6f69,0x00030005,0x0000001b,0x00000000,0x00040005,0x0000001c, |
| 0x736f5061,0x00000000,0x00060005,0x0000001e,0x73755075,0x6e6f4368,0x6e617473,0x00000074, |
| 0x00050006,0x0000001e,0x00000000,0x61635375,0x0000656c,0x00060006,0x0000001e,0x00000001, |
| 0x61725475,0x616c736e,0x00006574,0x00030005,0x00000020,0x00006370,0x00040047,0x0000000b, |
| 0x0000001e,0x00000000,0x00040047,0x0000000f,0x0000001e,0x00000002,0x00040047,0x00000015, |
| 0x0000001e,0x00000001,0x00050048,0x00000019,0x00000000,0x0000000b,0x00000000,0x00030047, |
| 0x00000019,0x00000002,0x00040047,0x0000001c,0x0000001e,0x00000000,0x00050048,0x0000001e, |
| 0x00000000,0x00000023,0x00000000,0x00050048,0x0000001e,0x00000001,0x00000023,0x00000008, |
| 0x00030047,0x0000001e,0x00000002,0x00020013,0x00000002,0x00030021,0x00000003,0x00000002, |
| 0x00030016,0x00000006,0x00000020,0x00040017,0x00000007,0x00000006,0x00000004,0x00040017, |
| 0x00000008,0x00000006,0x00000002,0x0004001e,0x00000009,0x00000007,0x00000008,0x00040020, |
| 0x0000000a,0x00000003,0x00000009,0x0004003b,0x0000000a,0x0000000b,0x00000003,0x00040015, |
| 0x0000000c,0x00000020,0x00000001,0x0004002b,0x0000000c,0x0000000d,0x00000000,0x00040020, |
| 0x0000000e,0x00000001,0x00000007,0x0004003b,0x0000000e,0x0000000f,0x00000001,0x00040020, |
| 0x00000011,0x00000003,0x00000007,0x0004002b,0x0000000c,0x00000013,0x00000001,0x00040020, |
| 0x00000014,0x00000001,0x00000008,0x0004003b,0x00000014,0x00000015,0x00000001,0x00040020, |
| 0x00000017,0x00000003,0x00000008,0x0003001e,0x00000019,0x00000007,0x00040020,0x0000001a, |
| 0x00000003,0x00000019,0x0004003b,0x0000001a,0x0000001b,0x00000003,0x0004003b,0x00000014, |
| 0x0000001c,0x00000001,0x0004001e,0x0000001e,0x00000008,0x00000008,0x00040020,0x0000001f, |
| 0x00000009,0x0000001e,0x0004003b,0x0000001f,0x00000020,0x00000009,0x00040020,0x00000021, |
| 0x00000009,0x00000008,0x0004002b,0x00000006,0x00000028,0x00000000,0x0004002b,0x00000006, |
| 0x00000029,0x3f800000,0x00050036,0x00000002,0x00000004,0x00000000,0x00000003,0x000200f8, |
| 0x00000005,0x0004003d,0x00000007,0x00000010,0x0000000f,0x00050041,0x00000011,0x00000012, |
| 0x0000000b,0x0000000d,0x0003003e,0x00000012,0x00000010,0x0004003d,0x00000008,0x00000016, |
| 0x00000015,0x00050041,0x00000017,0x00000018,0x0000000b,0x00000013,0x0003003e,0x00000018, |
| 0x00000016,0x0004003d,0x00000008,0x0000001d,0x0000001c,0x00050041,0x00000021,0x00000022, |
| 0x00000020,0x0000000d,0x0004003d,0x00000008,0x00000023,0x00000022,0x00050085,0x00000008, |
| 0x00000024,0x0000001d,0x00000023,0x00050041,0x00000021,0x00000025,0x00000020,0x00000013, |
| 0x0004003d,0x00000008,0x00000026,0x00000025,0x00050081,0x00000008,0x00000027,0x00000024, |
| 0x00000026,0x00050051,0x00000006,0x0000002a,0x00000027,0x00000000,0x00050051,0x00000006, |
| 0x0000002b,0x00000027,0x00000001,0x00070050,0x00000007,0x0000002c,0x0000002a,0x0000002b, |
| 0x00000028,0x00000029,0x00050041,0x00000011,0x0000002d,0x0000001b,0x0000000d,0x0003003e, |
| 0x0000002d,0x0000002c,0x000100fd,0x00010038 |
| }; |
| |
| // backends/vulkan/glsl_shader.frag, compiled with: |
| // # glslangValidator -V -x -o glsl_shader.frag.u32 glsl_shader.frag |
| /* |
| #version 450 core |
| layout(location = 0) out vec4 fColor; |
| layout(set=0, binding=0) uniform sampler2D sTexture; |
| layout(location = 0) in struct { vec4 Color; vec2 UV; } In; |
| void main() |
| { |
| fColor = In.Color * texture(sTexture, In.UV.st); |
| } |
| */ |
| static uint32_t __glsl_shader_frag_spv[] = |
| { |
| 0x07230203,0x00010000,0x00080001,0x0000001e,0x00000000,0x00020011,0x00000001,0x0006000b, |
| 0x00000001,0x4c534c47,0x6474732e,0x3035342e,0x00000000,0x0003000e,0x00000000,0x00000001, |
| 0x0007000f,0x00000004,0x00000004,0x6e69616d,0x00000000,0x00000009,0x0000000d,0x00030010, |
| 0x00000004,0x00000007,0x00030003,0x00000002,0x000001c2,0x00040005,0x00000004,0x6e69616d, |
| 0x00000000,0x00040005,0x00000009,0x6c6f4366,0x0000726f,0x00030005,0x0000000b,0x00000000, |
| 0x00050006,0x0000000b,0x00000000,0x6f6c6f43,0x00000072,0x00040006,0x0000000b,0x00000001, |
| 0x00005655,0x00030005,0x0000000d,0x00006e49,0x00050005,0x00000016,0x78655473,0x65727574, |
| 0x00000000,0x00040047,0x00000009,0x0000001e,0x00000000,0x00040047,0x0000000d,0x0000001e, |
| 0x00000000,0x00040047,0x00000016,0x00000022,0x00000000,0x00040047,0x00000016,0x00000021, |
| 0x00000000,0x00020013,0x00000002,0x00030021,0x00000003,0x00000002,0x00030016,0x00000006, |
| 0x00000020,0x00040017,0x00000007,0x00000006,0x00000004,0x00040020,0x00000008,0x00000003, |
| 0x00000007,0x0004003b,0x00000008,0x00000009,0x00000003,0x00040017,0x0000000a,0x00000006, |
| 0x00000002,0x0004001e,0x0000000b,0x00000007,0x0000000a,0x00040020,0x0000000c,0x00000001, |
| 0x0000000b,0x0004003b,0x0000000c,0x0000000d,0x00000001,0x00040015,0x0000000e,0x00000020, |
| 0x00000001,0x0004002b,0x0000000e,0x0000000f,0x00000000,0x00040020,0x00000010,0x00000001, |
| 0x00000007,0x00090019,0x00000013,0x00000006,0x00000001,0x00000000,0x00000000,0x00000000, |
| 0x00000001,0x00000000,0x0003001b,0x00000014,0x00000013,0x00040020,0x00000015,0x00000000, |
| 0x00000014,0x0004003b,0x00000015,0x00000016,0x00000000,0x0004002b,0x0000000e,0x00000018, |
| 0x00000001,0x00040020,0x00000019,0x00000001,0x0000000a,0x00050036,0x00000002,0x00000004, |
| 0x00000000,0x00000003,0x000200f8,0x00000005,0x00050041,0x00000010,0x00000011,0x0000000d, |
| 0x0000000f,0x0004003d,0x00000007,0x00000012,0x00000011,0x0004003d,0x00000014,0x00000017, |
| 0x00000016,0x00050041,0x00000019,0x0000001a,0x0000000d,0x00000018,0x0004003d,0x0000000a, |
| 0x0000001b,0x0000001a,0x00050057,0x00000007,0x0000001c,0x00000017,0x0000001b,0x00050085, |
| 0x00000007,0x0000001d,0x00000012,0x0000001c,0x0003003e,0x00000009,0x0000001d,0x000100fd, |
| 0x00010038 |
| }; |
| |
| //----------------------------------------------------------------------------- |
| // FUNCTIONS |
| //----------------------------------------------------------------------------- |
| |
| // Backend data stored in io.BackendRendererUserData to allow support for multiple Dear ImGui contexts |
| // It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts. |
| // FIXME: multi-context support is not tested and probably dysfunctional in this backend. |
| static ImGui_ImplVulkan_Data* ImGui_ImplVulkan_GetBackendData() |
| { |
| return ImGui::GetCurrentContext() ? (ImGui_ImplVulkan_Data*)ImGui::GetIO().BackendRendererUserData : nullptr; |
| } |
| |
| static uint32_t ImGui_ImplVulkan_MemoryType(VkMemoryPropertyFlags properties, uint32_t type_bits) |
| { |
| ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); |
| ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo; |
| VkPhysicalDeviceMemoryProperties prop; |
| vkGetPhysicalDeviceMemoryProperties(v->PhysicalDevice, &prop); |
| for (uint32_t i = 0; i < prop.memoryTypeCount; i++) |
| if ((prop.memoryTypes[i].propertyFlags & properties) == properties && type_bits & (1 << i)) |
| return i; |
| return 0xFFFFFFFF; // Unable to find memoryType |
| } |
| |
| static void check_vk_result(VkResult err) |
| { |
| ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); |
| if (!bd) |
| return; |
| ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo; |
| if (v->CheckVkResultFn) |
| v->CheckVkResultFn(err); |
| } |
| |
| // Same as IM_MEMALIGN(). 'alignment' must be a power of two. |
| static inline VkDeviceSize AlignBufferSize(VkDeviceSize size, VkDeviceSize alignment) |
| { |
| return (size + alignment - 1) & ~(alignment - 1); |
| } |
| |
| static void CreateOrResizeBuffer(VkBuffer& buffer, VkDeviceMemory& buffer_memory, VkDeviceSize& buffer_size, VkDeviceSize new_size, VkBufferUsageFlagBits usage) |
| { |
| ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); |
| ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo; |
| VkResult err; |
| if (buffer != VK_NULL_HANDLE) |
| vkDestroyBuffer(v->Device, buffer, v->Allocator); |
| if (buffer_memory != VK_NULL_HANDLE) |
| vkFreeMemory(v->Device, buffer_memory, v->Allocator); |
| |
| VkDeviceSize buffer_size_aligned = AlignBufferSize(IM_MAX(v->MinAllocationSize, new_size), bd->BufferMemoryAlignment); |
| VkBufferCreateInfo buffer_info = {}; |
| buffer_info.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO; |
| buffer_info.size = buffer_size_aligned; |
| buffer_info.usage = usage; |
| buffer_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE; |
| err = vkCreateBuffer(v->Device, &buffer_info, v->Allocator, &buffer); |
| check_vk_result(err); |
| |
| VkMemoryRequirements req; |
| vkGetBufferMemoryRequirements(v->Device, buffer, &req); |
| bd->BufferMemoryAlignment = (bd->BufferMemoryAlignment > req.alignment) ? bd->BufferMemoryAlignment : req.alignment; |
| VkMemoryAllocateInfo alloc_info = {}; |
| alloc_info.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO; |
| alloc_info.allocationSize = req.size; |
| alloc_info.memoryTypeIndex = ImGui_ImplVulkan_MemoryType(VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, req.memoryTypeBits); |
| err = vkAllocateMemory(v->Device, &alloc_info, v->Allocator, &buffer_memory); |
| check_vk_result(err); |
| |
| err = vkBindBufferMemory(v->Device, buffer, buffer_memory, 0); |
| check_vk_result(err); |
| buffer_size = buffer_size_aligned; |
| } |
| |
| static void ImGui_ImplVulkan_SetupRenderState(ImDrawData* draw_data, VkPipeline pipeline, VkCommandBuffer command_buffer, ImGui_ImplVulkan_FrameRenderBuffers* rb, int fb_width, int fb_height) |
| { |
| ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); |
| |
| // Bind pipeline: |
| { |
| vkCmdBindPipeline(command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline); |
| } |
| |
| // Bind Vertex And Index Buffer: |
| if (draw_data->TotalVtxCount > 0) |
| { |
| VkBuffer vertex_buffers[1] = { rb->VertexBuffer }; |
| VkDeviceSize vertex_offset[1] = { 0 }; |
| vkCmdBindVertexBuffers(command_buffer, 0, 1, vertex_buffers, vertex_offset); |
| vkCmdBindIndexBuffer(command_buffer, rb->IndexBuffer, 0, sizeof(ImDrawIdx) == 2 ? VK_INDEX_TYPE_UINT16 : VK_INDEX_TYPE_UINT32); |
| } |
| |
| // Setup viewport: |
| { |
| VkViewport viewport; |
| viewport.x = 0; |
| viewport.y = 0; |
| viewport.width = (float)fb_width; |
| viewport.height = (float)fb_height; |
| viewport.minDepth = 0.0f; |
| viewport.maxDepth = 1.0f; |
| vkCmdSetViewport(command_buffer, 0, 1, &viewport); |
| } |
| |
| // Setup scale and translation: |
| // Our visible imgui space lies from draw_data->DisplayPps (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps. |
| { |
| float scale[2]; |
| scale[0] = 2.0f / draw_data->DisplaySize.x; |
| scale[1] = 2.0f / draw_data->DisplaySize.y; |
| float translate[2]; |
| translate[0] = -1.0f - draw_data->DisplayPos.x * scale[0]; |
| translate[1] = -1.0f - draw_data->DisplayPos.y * scale[1]; |
| vkCmdPushConstants(command_buffer, bd->PipelineLayout, VK_SHADER_STAGE_VERTEX_BIT, sizeof(float) * 0, sizeof(float) * 2, scale); |
| vkCmdPushConstants(command_buffer, bd->PipelineLayout, VK_SHADER_STAGE_VERTEX_BIT, sizeof(float) * 2, sizeof(float) * 2, translate); |
| } |
| } |
| |
| // Render function |
| void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer command_buffer, VkPipeline pipeline) |
| { |
| // Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates) |
| int fb_width = (int)(draw_data->DisplaySize.x * draw_data->FramebufferScale.x); |
| int fb_height = (int)(draw_data->DisplaySize.y * draw_data->FramebufferScale.y); |
| if (fb_width <= 0 || fb_height <= 0) |
| return; |
| |
| ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); |
| ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo; |
| if (pipeline == VK_NULL_HANDLE) |
| pipeline = bd->Pipeline; |
| |
| // Allocate array to store enough vertex/index buffers. Each unique viewport gets its own storage. |
| ImGui_ImplVulkan_ViewportData* viewport_renderer_data = (ImGui_ImplVulkan_ViewportData*)draw_data->OwnerViewport->RendererUserData; |
| IM_ASSERT(viewport_renderer_data != nullptr); |
| ImGui_ImplVulkan_WindowRenderBuffers* wrb = &viewport_renderer_data->RenderBuffers; |
| if (wrb->FrameRenderBuffers == nullptr) |
| { |
| wrb->Index = 0; |
| wrb->Count = v->ImageCount; |
| wrb->FrameRenderBuffers = (ImGui_ImplVulkan_FrameRenderBuffers*)IM_ALLOC(sizeof(ImGui_ImplVulkan_FrameRenderBuffers) * wrb->Count); |
| memset((void*)wrb->FrameRenderBuffers, 0, sizeof(ImGui_ImplVulkan_FrameRenderBuffers) * wrb->Count); |
| } |
| IM_ASSERT(wrb->Count == v->ImageCount); |
| wrb->Index = (wrb->Index + 1) % wrb->Count; |
| ImGui_ImplVulkan_FrameRenderBuffers* rb = &wrb->FrameRenderBuffers[wrb->Index]; |
| |
| if (draw_data->TotalVtxCount > 0) |
| { |
| // Create or resize the vertex/index buffers |
| VkDeviceSize vertex_size = AlignBufferSize(draw_data->TotalVtxCount * sizeof(ImDrawVert), bd->BufferMemoryAlignment); |
| VkDeviceSize index_size = AlignBufferSize(draw_data->TotalIdxCount * sizeof(ImDrawIdx), bd->BufferMemoryAlignment); |
| if (rb->VertexBuffer == VK_NULL_HANDLE || rb->VertexBufferSize < vertex_size) |
| CreateOrResizeBuffer(rb->VertexBuffer, rb->VertexBufferMemory, rb->VertexBufferSize, vertex_size, VK_BUFFER_USAGE_VERTEX_BUFFER_BIT); |
| if (rb->IndexBuffer == VK_NULL_HANDLE || rb->IndexBufferSize < index_size) |
| CreateOrResizeBuffer(rb->IndexBuffer, rb->IndexBufferMemory, rb->IndexBufferSize, index_size, VK_BUFFER_USAGE_INDEX_BUFFER_BIT); |
| |
| // Upload vertex/index data into a single contiguous GPU buffer |
| ImDrawVert* vtx_dst = nullptr; |
| ImDrawIdx* idx_dst = nullptr; |
| VkResult err = vkMapMemory(v->Device, rb->VertexBufferMemory, 0, vertex_size, 0, (void**)&vtx_dst); |
| check_vk_result(err); |
| err = vkMapMemory(v->Device, rb->IndexBufferMemory, 0, index_size, 0, (void**)&idx_dst); |
| check_vk_result(err); |
| for (int n = 0; n < draw_data->CmdListsCount; n++) |
| { |
| const ImDrawList* draw_list = draw_data->CmdLists[n]; |
| memcpy(vtx_dst, draw_list->VtxBuffer.Data, draw_list->VtxBuffer.Size * sizeof(ImDrawVert)); |
| memcpy(idx_dst, draw_list->IdxBuffer.Data, draw_list->IdxBuffer.Size * sizeof(ImDrawIdx)); |
| vtx_dst += draw_list->VtxBuffer.Size; |
| idx_dst += draw_list->IdxBuffer.Size; |
| } |
| VkMappedMemoryRange range[2] = {}; |
| range[0].sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE; |
| range[0].memory = rb->VertexBufferMemory; |
| range[0].size = VK_WHOLE_SIZE; |
| range[1].sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE; |
| range[1].memory = rb->IndexBufferMemory; |
| range[1].size = VK_WHOLE_SIZE; |
| err = vkFlushMappedMemoryRanges(v->Device, 2, range); |
| check_vk_result(err); |
| vkUnmapMemory(v->Device, rb->VertexBufferMemory); |
| vkUnmapMemory(v->Device, rb->IndexBufferMemory); |
| } |
| |
| // Setup desired Vulkan state |
| ImGui_ImplVulkan_SetupRenderState(draw_data, pipeline, command_buffer, rb, fb_width, fb_height); |
| |
| // Setup render state structure (for callbacks and custom texture bindings) |
| ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO(); |
| ImGui_ImplVulkan_RenderState render_state; |
| render_state.CommandBuffer = command_buffer; |
| render_state.Pipeline = pipeline; |
| render_state.PipelineLayout = bd->PipelineLayout; |
| platform_io.Renderer_RenderState = &render_state; |
| |
| // Will project scissor/clipping rectangles into framebuffer space |
| ImVec2 clip_off = draw_data->DisplayPos; // (0,0) unless using multi-viewports |
| ImVec2 clip_scale = draw_data->FramebufferScale; // (1,1) unless using retina display which are often (2,2) |
| |
| // Render command lists |
| // (Because we merged all buffers into a single one, we maintain our own offset into them) |
| int global_vtx_offset = 0; |
| int global_idx_offset = 0; |
| for (int n = 0; n < draw_data->CmdListsCount; n++) |
| { |
| const ImDrawList* draw_list = draw_data->CmdLists[n]; |
| for (int cmd_i = 0; cmd_i < draw_list->CmdBuffer.Size; cmd_i++) |
| { |
| const ImDrawCmd* pcmd = &draw_list->CmdBuffer[cmd_i]; |
| if (pcmd->UserCallback != nullptr) |
| { |
| // User callback, registered via ImDrawList::AddCallback() |
| // (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.) |
| if (pcmd->UserCallback == ImDrawCallback_ResetRenderState) |
| ImGui_ImplVulkan_SetupRenderState(draw_data, pipeline, command_buffer, rb, fb_width, fb_height); |
| else |
| pcmd->UserCallback(draw_list, pcmd); |
| } |
| else |
| { |
| // Project scissor/clipping rectangles into framebuffer space |
| ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y); |
| ImVec2 clip_max((pcmd->ClipRect.z - clip_off.x) * clip_scale.x, (pcmd->ClipRect.w - clip_off.y) * clip_scale.y); |
| |
| // Clamp to viewport as vkCmdSetScissor() won't accept values that are off bounds |
| if (clip_min.x < 0.0f) { clip_min.x = 0.0f; } |
| if (clip_min.y < 0.0f) { clip_min.y = 0.0f; } |
| if (clip_max.x > fb_width) { clip_max.x = (float)fb_width; } |
| if (clip_max.y > fb_height) { clip_max.y = (float)fb_height; } |
| if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y) |
| continue; |
| |
| // Apply scissor/clipping rectangle |
| VkRect2D scissor; |
| scissor.offset.x = (int32_t)(clip_min.x); |
| scissor.offset.y = (int32_t)(clip_min.y); |
| scissor.extent.width = (uint32_t)(clip_max.x - clip_min.x); |
| scissor.extent.height = (uint32_t)(clip_max.y - clip_min.y); |
| vkCmdSetScissor(command_buffer, 0, 1, &scissor); |
| |
| // Bind DescriptorSet with font or user texture |
| VkDescriptorSet desc_set[1] = { (VkDescriptorSet)pcmd->GetTexID() }; |
| if (sizeof(ImTextureID) < sizeof(ImU64)) |
| { |
| // We don't support texture switches if ImTextureID hasn't been redefined to be 64-bit. Do a flaky check that other textures haven't been used. |
| IM_ASSERT(pcmd->GetTexID() == (ImTextureID)bd->FontDescriptorSet); |
| desc_set[0] = bd->FontDescriptorSet; |
| } |
| vkCmdBindDescriptorSets(command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, bd->PipelineLayout, 0, 1, desc_set, 0, nullptr); |
| |
| // Draw |
| vkCmdDrawIndexed(command_buffer, pcmd->ElemCount, 1, pcmd->IdxOffset + global_idx_offset, pcmd->VtxOffset + global_vtx_offset, 0); |
| } |
| } |
| global_idx_offset += draw_list->IdxBuffer.Size; |
| global_vtx_offset += draw_list->VtxBuffer.Size; |
| } |
| platform_io.Renderer_RenderState = NULL; |
| |
| // Note: at this point both vkCmdSetViewport() and vkCmdSetScissor() have been called. |
| // Our last values will leak into user/application rendering IF: |
| // - Your app uses a pipeline with VK_DYNAMIC_STATE_VIEWPORT or VK_DYNAMIC_STATE_SCISSOR dynamic state |
| // - And you forgot to call vkCmdSetViewport() and vkCmdSetScissor() yourself to explicitly set that state. |
| // If you use VK_DYNAMIC_STATE_VIEWPORT or VK_DYNAMIC_STATE_SCISSOR you are responsible for setting the values before rendering. |
| // In theory we should aim to backup/restore those values but I am not sure this is possible. |
| // We perform a call to vkCmdSetScissor() to set back a full viewport which is likely to fix things for 99% users but technically this is not perfect. (See github #4644) |
| VkRect2D scissor = { { 0, 0 }, { (uint32_t)fb_width, (uint32_t)fb_height } }; |
| vkCmdSetScissor(command_buffer, 0, 1, &scissor); |
| } |
| |
| bool ImGui_ImplVulkan_CreateFontsTexture() |
| { |
| ImGuiIO& io = ImGui::GetIO(); |
| ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); |
| ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo; |
| VkResult err; |
| |
| // Destroy existing texture (if any) |
| if (bd->FontView || bd->FontImage || bd->FontMemory || bd->FontDescriptorSet) |
| { |
| vkQueueWaitIdle(v->Queue); |
| ImGui_ImplVulkan_DestroyFontsTexture(); |
| } |
| |
| // Create command pool/buffer |
| if (bd->FontCommandPool == VK_NULL_HANDLE) |
| { |
| VkCommandPoolCreateInfo info = {}; |
| info.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO; |
| info.flags = 0; |
| info.queueFamilyIndex = v->QueueFamily; |
| vkCreateCommandPool(v->Device, &info, v->Allocator, &bd->FontCommandPool); |
| } |
| if (bd->FontCommandBuffer == VK_NULL_HANDLE) |
| { |
| VkCommandBufferAllocateInfo info = {}; |
| info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO; |
| info.commandPool = bd->FontCommandPool; |
| info.commandBufferCount = 1; |
| err = vkAllocateCommandBuffers(v->Device, &info, &bd->FontCommandBuffer); |
| check_vk_result(err); |
| } |
| |
| // Start command buffer |
| { |
| err = vkResetCommandPool(v->Device, bd->FontCommandPool, 0); |
| check_vk_result(err); |
| VkCommandBufferBeginInfo begin_info = {}; |
| begin_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO; |
| begin_info.flags |= VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT; |
| err = vkBeginCommandBuffer(bd->FontCommandBuffer, &begin_info); |
| check_vk_result(err); |
| } |
| |
| unsigned char* pixels; |
| int width, height; |
| io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height); |
| size_t upload_size = width * height * 4 * sizeof(char); |
| |
| // Create the Image: |
| { |
| VkImageCreateInfo info = {}; |
| info.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO; |
| info.imageType = VK_IMAGE_TYPE_2D; |
| info.format = VK_FORMAT_R8G8B8A8_UNORM; |
| info.extent.width = width; |
| info.extent.height = height; |
| info.extent.depth = 1; |
| info.mipLevels = 1; |
| info.arrayLayers = 1; |
| info.samples = VK_SAMPLE_COUNT_1_BIT; |
| info.tiling = VK_IMAGE_TILING_OPTIMAL; |
| info.usage = VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT; |
| info.sharingMode = VK_SHARING_MODE_EXCLUSIVE; |
| info.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED; |
| err = vkCreateImage(v->Device, &info, v->Allocator, &bd->FontImage); |
| check_vk_result(err); |
| VkMemoryRequirements req; |
| vkGetImageMemoryRequirements(v->Device, bd->FontImage, &req); |
| VkMemoryAllocateInfo alloc_info = {}; |
| alloc_info.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO; |
| alloc_info.allocationSize = IM_MAX(v->MinAllocationSize, req.size); |
| alloc_info.memoryTypeIndex = ImGui_ImplVulkan_MemoryType(VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, req.memoryTypeBits); |
| err = vkAllocateMemory(v->Device, &alloc_info, v->Allocator, &bd->FontMemory); |
| check_vk_result(err); |
| err = vkBindImageMemory(v->Device, bd->FontImage, bd->FontMemory, 0); |
| check_vk_result(err); |
| } |
| |
| // Create the Image View: |
| { |
| VkImageViewCreateInfo info = {}; |
| info.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO; |
| info.image = bd->FontImage; |
| info.viewType = VK_IMAGE_VIEW_TYPE_2D; |
| info.format = VK_FORMAT_R8G8B8A8_UNORM; |
| info.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT; |
| info.subresourceRange.levelCount = 1; |
| info.subresourceRange.layerCount = 1; |
| err = vkCreateImageView(v->Device, &info, v->Allocator, &bd->FontView); |
| check_vk_result(err); |
| } |
| |
| // Create the Descriptor Set: |
| bd->FontDescriptorSet = (VkDescriptorSet)ImGui_ImplVulkan_AddTexture(bd->FontSampler, bd->FontView, VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL); |
| |
| // Create the Upload Buffer: |
| VkDeviceMemory upload_buffer_memory; |
| VkBuffer upload_buffer; |
| { |
| VkBufferCreateInfo buffer_info = {}; |
| buffer_info.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO; |
| buffer_info.size = upload_size; |
| buffer_info.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT; |
| buffer_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE; |
| err = vkCreateBuffer(v->Device, &buffer_info, v->Allocator, &upload_buffer); |
| check_vk_result(err); |
| VkMemoryRequirements req; |
| vkGetBufferMemoryRequirements(v->Device, upload_buffer, &req); |
| bd->BufferMemoryAlignment = (bd->BufferMemoryAlignment > req.alignment) ? bd->BufferMemoryAlignment : req.alignment; |
| VkMemoryAllocateInfo alloc_info = {}; |
| alloc_info.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO; |
| alloc_info.allocationSize = IM_MAX(v->MinAllocationSize, req.size); |
| alloc_info.memoryTypeIndex = ImGui_ImplVulkan_MemoryType(VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, req.memoryTypeBits); |
| err = vkAllocateMemory(v->Device, &alloc_info, v->Allocator, &upload_buffer_memory); |
| check_vk_result(err); |
| err = vkBindBufferMemory(v->Device, upload_buffer, upload_buffer_memory, 0); |
| check_vk_result(err); |
| } |
| |
| // Upload to Buffer: |
| { |
| char* map = nullptr; |
| err = vkMapMemory(v->Device, upload_buffer_memory, 0, upload_size, 0, (void**)(&map)); |
| check_vk_result(err); |
| memcpy(map, pixels, upload_size); |
| VkMappedMemoryRange range[1] = {}; |
| range[0].sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE; |
| range[0].memory = upload_buffer_memory; |
| range[0].size = upload_size; |
| err = vkFlushMappedMemoryRanges(v->Device, 1, range); |
| check_vk_result(err); |
| vkUnmapMemory(v->Device, upload_buffer_memory); |
| } |
| |
| // Copy to Image: |
| { |
| VkImageMemoryBarrier copy_barrier[1] = {}; |
| copy_barrier[0].sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER; |
| copy_barrier[0].dstAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT; |
| copy_barrier[0].oldLayout = VK_IMAGE_LAYOUT_UNDEFINED; |
| copy_barrier[0].newLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL; |
| copy_barrier[0].srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED; |
| copy_barrier[0].dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED; |
| copy_barrier[0].image = bd->FontImage; |
| copy_barrier[0].subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT; |
| copy_barrier[0].subresourceRange.levelCount = 1; |
| copy_barrier[0].subresourceRange.layerCount = 1; |
| vkCmdPipelineBarrier(bd->FontCommandBuffer, VK_PIPELINE_STAGE_HOST_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, nullptr, 0, nullptr, 1, copy_barrier); |
| |
| VkBufferImageCopy region = {}; |
| region.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT; |
| region.imageSubresource.layerCount = 1; |
| region.imageExtent.width = width; |
| region.imageExtent.height = height; |
| region.imageExtent.depth = 1; |
| vkCmdCopyBufferToImage(bd->FontCommandBuffer, upload_buffer, bd->FontImage, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, ®ion); |
| |
| VkImageMemoryBarrier use_barrier[1] = {}; |
| use_barrier[0].sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER; |
| use_barrier[0].srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT; |
| use_barrier[0].dstAccessMask = VK_ACCESS_SHADER_READ_BIT; |
| use_barrier[0].oldLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL; |
| use_barrier[0].newLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL; |
| use_barrier[0].srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED; |
| use_barrier[0].dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED; |
| use_barrier[0].image = bd->FontImage; |
| use_barrier[0].subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT; |
| use_barrier[0].subresourceRange.levelCount = 1; |
| use_barrier[0].subresourceRange.layerCount = 1; |
| vkCmdPipelineBarrier(bd->FontCommandBuffer, VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT, 0, 0, nullptr, 0, nullptr, 1, use_barrier); |
| } |
| |
| // Store our identifier |
| io.Fonts->SetTexID((ImTextureID)bd->FontDescriptorSet); |
| |
| // End command buffer |
| VkSubmitInfo end_info = {}; |
| end_info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO; |
| end_info.commandBufferCount = 1; |
| end_info.pCommandBuffers = &bd->FontCommandBuffer; |
| err = vkEndCommandBuffer(bd->FontCommandBuffer); |
| check_vk_result(err); |
| err = vkQueueSubmit(v->Queue, 1, &end_info, VK_NULL_HANDLE); |
| check_vk_result(err); |
| |
| err = vkQueueWaitIdle(v->Queue); |
| check_vk_result(err); |
| |
| vkDestroyBuffer(v->Device, upload_buffer, v->Allocator); |
| vkFreeMemory(v->Device, upload_buffer_memory, v->Allocator); |
| |
| return true; |
| } |
| |
| // You probably never need to call this, as it is called by ImGui_ImplVulkan_CreateFontsTexture() and ImGui_ImplVulkan_Shutdown(). |
| void ImGui_ImplVulkan_DestroyFontsTexture() |
| { |
| ImGuiIO& io = ImGui::GetIO(); |
| ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); |
| ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo; |
| |
| if (bd->FontDescriptorSet) |
| { |
| ImGui_ImplVulkan_RemoveTexture(bd->FontDescriptorSet); |
| bd->FontDescriptorSet = VK_NULL_HANDLE; |
| io.Fonts->SetTexID(0); |
| } |
| |
| if (bd->FontView) { vkDestroyImageView(v->Device, bd->FontView, v->Allocator); bd->FontView = VK_NULL_HANDLE; } |
| if (bd->FontImage) { vkDestroyImage(v->Device, bd->FontImage, v->Allocator); bd->FontImage = VK_NULL_HANDLE; } |
| if (bd->FontMemory) { vkFreeMemory(v->Device, bd->FontMemory, v->Allocator); bd->FontMemory = VK_NULL_HANDLE; } |
| } |
| |
| static void ImGui_ImplVulkan_CreateShaderModules(VkDevice device, const VkAllocationCallbacks* allocator) |
| { |
| // Create the shader modules |
| ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); |
| if (bd->ShaderModuleVert == VK_NULL_HANDLE) |
| { |
| VkShaderModuleCreateInfo vert_info = {}; |
| vert_info.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO; |
| vert_info.codeSize = sizeof(__glsl_shader_vert_spv); |
| vert_info.pCode = (uint32_t*)__glsl_shader_vert_spv; |
| VkResult err = vkCreateShaderModule(device, &vert_info, allocator, &bd->ShaderModuleVert); |
| check_vk_result(err); |
| } |
| if (bd->ShaderModuleFrag == VK_NULL_HANDLE) |
| { |
| VkShaderModuleCreateInfo frag_info = {}; |
| frag_info.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO; |
| frag_info.codeSize = sizeof(__glsl_shader_frag_spv); |
| frag_info.pCode = (uint32_t*)__glsl_shader_frag_spv; |
| VkResult err = vkCreateShaderModule(device, &frag_info, allocator, &bd->ShaderModuleFrag); |
| check_vk_result(err); |
| } |
| } |
| |
| static void ImGui_ImplVulkan_CreatePipeline(VkDevice device, const VkAllocationCallbacks* allocator, VkPipelineCache pipelineCache, VkRenderPass renderPass, VkSampleCountFlagBits MSAASamples, VkPipeline* pipeline, uint32_t subpass) |
| { |
| ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); |
| ImGui_ImplVulkan_CreateShaderModules(device, allocator); |
| |
| VkPipelineShaderStageCreateInfo stage[2] = {}; |
| stage[0].sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO; |
| stage[0].stage = VK_SHADER_STAGE_VERTEX_BIT; |
| stage[0].module = bd->ShaderModuleVert; |
| stage[0].pName = "main"; |
| stage[1].sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO; |
| stage[1].stage = VK_SHADER_STAGE_FRAGMENT_BIT; |
| stage[1].module = bd->ShaderModuleFrag; |
| stage[1].pName = "main"; |
| |
| VkVertexInputBindingDescription binding_desc[1] = {}; |
| binding_desc[0].stride = sizeof(ImDrawVert); |
| binding_desc[0].inputRate = VK_VERTEX_INPUT_RATE_VERTEX; |
| |
| VkVertexInputAttributeDescription attribute_desc[3] = {}; |
| attribute_desc[0].location = 0; |
| attribute_desc[0].binding = binding_desc[0].binding; |
| attribute_desc[0].format = VK_FORMAT_R32G32_SFLOAT; |
| attribute_desc[0].offset = offsetof(ImDrawVert, pos); |
| attribute_desc[1].location = 1; |
| attribute_desc[1].binding = binding_desc[0].binding; |
| attribute_desc[1].format = VK_FORMAT_R32G32_SFLOAT; |
| attribute_desc[1].offset = offsetof(ImDrawVert, uv); |
| attribute_desc[2].location = 2; |
| attribute_desc[2].binding = binding_desc[0].binding; |
| attribute_desc[2].format = VK_FORMAT_R8G8B8A8_UNORM; |
| attribute_desc[2].offset = offsetof(ImDrawVert, col); |
| |
| VkPipelineVertexInputStateCreateInfo vertex_info = {}; |
| vertex_info.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO; |
| vertex_info.vertexBindingDescriptionCount = 1; |
| vertex_info.pVertexBindingDescriptions = binding_desc; |
| vertex_info.vertexAttributeDescriptionCount = 3; |
| vertex_info.pVertexAttributeDescriptions = attribute_desc; |
| |
| VkPipelineInputAssemblyStateCreateInfo ia_info = {}; |
| ia_info.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO; |
| ia_info.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST; |
| |
| VkPipelineViewportStateCreateInfo viewport_info = {}; |
| viewport_info.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO; |
| viewport_info.viewportCount = 1; |
| viewport_info.scissorCount = 1; |
| |
| VkPipelineRasterizationStateCreateInfo raster_info = {}; |
| raster_info.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO; |
| raster_info.polygonMode = VK_POLYGON_MODE_FILL; |
| raster_info.cullMode = VK_CULL_MODE_NONE; |
| raster_info.frontFace = VK_FRONT_FACE_COUNTER_CLOCKWISE; |
| raster_info.lineWidth = 1.0f; |
| |
| VkPipelineMultisampleStateCreateInfo ms_info = {}; |
| ms_info.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO; |
| ms_info.rasterizationSamples = (MSAASamples != 0) ? MSAASamples : VK_SAMPLE_COUNT_1_BIT; |
| |
| VkPipelineColorBlendAttachmentState color_attachment[1] = {}; |
| color_attachment[0].blendEnable = VK_TRUE; |
| color_attachment[0].srcColorBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA; |
| color_attachment[0].dstColorBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA; |
| color_attachment[0].colorBlendOp = VK_BLEND_OP_ADD; |
| color_attachment[0].srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE; |
| color_attachment[0].dstAlphaBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA; |
| color_attachment[0].alphaBlendOp = VK_BLEND_OP_ADD; |
| color_attachment[0].colorWriteMask = VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT | VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT; |
| |
| VkPipelineDepthStencilStateCreateInfo depth_info = {}; |
| depth_info.sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO; |
| |
| VkPipelineColorBlendStateCreateInfo blend_info = {}; |
| blend_info.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO; |
| blend_info.attachmentCount = 1; |
| blend_info.pAttachments = color_attachment; |
| |
| VkDynamicState dynamic_states[2] = { VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR }; |
| VkPipelineDynamicStateCreateInfo dynamic_state = {}; |
| dynamic_state.sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO; |
| dynamic_state.dynamicStateCount = (uint32_t)IM_ARRAYSIZE(dynamic_states); |
| dynamic_state.pDynamicStates = dynamic_states; |
| |
| VkGraphicsPipelineCreateInfo info = {}; |
| info.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO; |
| info.flags = bd->PipelineCreateFlags; |
| info.stageCount = 2; |
| info.pStages = stage; |
| info.pVertexInputState = &vertex_info; |
| info.pInputAssemblyState = &ia_info; |
| info.pViewportState = &viewport_info; |
| info.pRasterizationState = &raster_info; |
| info.pMultisampleState = &ms_info; |
| info.pDepthStencilState = &depth_info; |
| info.pColorBlendState = &blend_info; |
| info.pDynamicState = &dynamic_state; |
| info.layout = bd->PipelineLayout; |
| info.renderPass = renderPass; |
| info.subpass = subpass; |
| |
| #ifdef IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING |
| if (bd->VulkanInitInfo.UseDynamicRendering) |
| { |
| IM_ASSERT(bd->VulkanInitInfo.PipelineRenderingCreateInfo.sType == VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO_KHR && "PipelineRenderingCreateInfo sType must be VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO_KHR"); |
| IM_ASSERT(bd->VulkanInitInfo.PipelineRenderingCreateInfo.pNext == nullptr && "PipelineRenderingCreateInfo pNext must be NULL"); |
| info.pNext = &bd->VulkanInitInfo.PipelineRenderingCreateInfo; |
| info.renderPass = VK_NULL_HANDLE; // Just make sure it's actually nullptr. |
| } |
| #endif |
| |
| VkResult err = vkCreateGraphicsPipelines(device, pipelineCache, 1, &info, allocator, pipeline); |
| check_vk_result(err); |
| } |
| |
| bool ImGui_ImplVulkan_CreateDeviceObjects() |
| { |
| ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); |
| ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo; |
| VkResult err; |
| |
| if (!bd->FontSampler) |
| { |
| // Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling. |
| VkSamplerCreateInfo info = {}; |
| info.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO; |
| info.magFilter = VK_FILTER_LINEAR; |
| info.minFilter = VK_FILTER_LINEAR; |
| info.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR; |
| info.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE; |
| info.addressModeV = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE; |
| info.addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE; |
| info.minLod = -1000; |
| info.maxLod = 1000; |
| info.maxAnisotropy = 1.0f; |
| err = vkCreateSampler(v->Device, &info, v->Allocator, &bd->FontSampler); |
| check_vk_result(err); |
| } |
| |
| if (!bd->DescriptorSetLayout) |
| { |
| VkDescriptorSetLayoutBinding binding[1] = {}; |
| binding[0].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER; |
| binding[0].descriptorCount = 1; |
| binding[0].stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT; |
| VkDescriptorSetLayoutCreateInfo info = {}; |
| info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO; |
| info.bindingCount = 1; |
| info.pBindings = binding; |
| err = vkCreateDescriptorSetLayout(v->Device, &info, v->Allocator, &bd->DescriptorSetLayout); |
| check_vk_result(err); |
| } |
| |
| if (!bd->PipelineLayout) |
| { |
| // Constants: we are using 'vec2 offset' and 'vec2 scale' instead of a full 3d projection matrix |
| VkPushConstantRange push_constants[1] = {}; |
| push_constants[0].stageFlags = VK_SHADER_STAGE_VERTEX_BIT; |
| push_constants[0].offset = sizeof(float) * 0; |
| push_constants[0].size = sizeof(float) * 4; |
| VkDescriptorSetLayout set_layout[1] = { bd->DescriptorSetLayout }; |
| VkPipelineLayoutCreateInfo layout_info = {}; |
| layout_info.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO; |
| layout_info.setLayoutCount = 1; |
| layout_info.pSetLayouts = set_layout; |
| layout_info.pushConstantRangeCount = 1; |
| layout_info.pPushConstantRanges = push_constants; |
| err = vkCreatePipelineLayout(v->Device, &layout_info, v->Allocator, &bd->PipelineLayout); |
| check_vk_result(err); |
| } |
| |
| ImGui_ImplVulkan_CreatePipeline(v->Device, v->Allocator, v->PipelineCache, v->RenderPass, v->MSAASamples, &bd->Pipeline, v->Subpass); |
| |
| return true; |
| } |
| |
| void ImGui_ImplVulkan_DestroyDeviceObjects() |
| { |
| ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); |
| ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo; |
| ImGui_ImplVulkanH_DestroyAllViewportsRenderBuffers(v->Device, v->Allocator); |
| ImGui_ImplVulkan_DestroyFontsTexture(); |
| |
| if (bd->FontCommandBuffer) { vkFreeCommandBuffers(v->Device, bd->FontCommandPool, 1, &bd->FontCommandBuffer); bd->FontCommandBuffer = VK_NULL_HANDLE; } |
| if (bd->FontCommandPool) { vkDestroyCommandPool(v->Device, bd->FontCommandPool, v->Allocator); bd->FontCommandPool = VK_NULL_HANDLE; } |
| if (bd->ShaderModuleVert) { vkDestroyShaderModule(v->Device, bd->ShaderModuleVert, v->Allocator); bd->ShaderModuleVert = VK_NULL_HANDLE; } |
| if (bd->ShaderModuleFrag) { vkDestroyShaderModule(v->Device, bd->ShaderModuleFrag, v->Allocator); bd->ShaderModuleFrag = VK_NULL_HANDLE; } |
| if (bd->FontSampler) { vkDestroySampler(v->Device, bd->FontSampler, v->Allocator); bd->FontSampler = VK_NULL_HANDLE; } |
| if (bd->DescriptorSetLayout) { vkDestroyDescriptorSetLayout(v->Device, bd->DescriptorSetLayout, v->Allocator); bd->DescriptorSetLayout = VK_NULL_HANDLE; } |
| if (bd->PipelineLayout) { vkDestroyPipelineLayout(v->Device, bd->PipelineLayout, v->Allocator); bd->PipelineLayout = VK_NULL_HANDLE; } |
| if (bd->Pipeline) { vkDestroyPipeline(v->Device, bd->Pipeline, v->Allocator); bd->Pipeline = VK_NULL_HANDLE; } |
| if (bd->PipelineForViewports) { vkDestroyPipeline(v->Device, bd->PipelineForViewports, v->Allocator); bd->PipelineForViewports = VK_NULL_HANDLE; } |
| } |
| |
| bool ImGui_ImplVulkan_LoadFunctions(PFN_vkVoidFunction(*loader_func)(const char* function_name, void* user_data), void* user_data) |
| { |
| // Load function pointers |
| // You can use the default Vulkan loader using: |
| // ImGui_ImplVulkan_LoadFunctions([](const char* function_name, void*) { return vkGetInstanceProcAddr(your_vk_isntance, function_name); }); |
| // But this would be roughly equivalent to not setting VK_NO_PROTOTYPES. |
| #ifdef IMGUI_IMPL_VULKAN_USE_LOADER |
| #define IMGUI_VULKAN_FUNC_LOAD(func) \ |
| func = reinterpret_cast<decltype(func)>(loader_func(#func, user_data)); \ |
| if (func == nullptr) \ |
| return false; |
| IMGUI_VULKAN_FUNC_MAP(IMGUI_VULKAN_FUNC_LOAD) |
| #undef IMGUI_VULKAN_FUNC_LOAD |
| |
| #ifdef IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING |
| // Manually load those two (see #5446) |
| ImGuiImplVulkanFuncs_vkCmdBeginRenderingKHR = reinterpret_cast<PFN_vkCmdBeginRenderingKHR>(loader_func("vkCmdBeginRenderingKHR", user_data)); |
| ImGuiImplVulkanFuncs_vkCmdEndRenderingKHR = reinterpret_cast<PFN_vkCmdEndRenderingKHR>(loader_func("vkCmdEndRenderingKHR", user_data)); |
| #endif |
| #else |
| IM_UNUSED(loader_func); |
| IM_UNUSED(user_data); |
| #endif |
| |
| g_FunctionsLoaded = true; |
| return true; |
| } |
| |
| bool ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo* info) |
| { |
| IM_ASSERT(g_FunctionsLoaded && "Need to call ImGui_ImplVulkan_LoadFunctions() if IMGUI_IMPL_VULKAN_NO_PROTOTYPES or VK_NO_PROTOTYPES are set!"); |
| |
| if (info->UseDynamicRendering) |
| { |
| #ifdef IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING |
| #ifndef IMGUI_IMPL_VULKAN_USE_LOADER |
| ImGuiImplVulkanFuncs_vkCmdBeginRenderingKHR = reinterpret_cast<PFN_vkCmdBeginRenderingKHR>(vkGetInstanceProcAddr(info->Instance, "vkCmdBeginRenderingKHR")); |
| ImGuiImplVulkanFuncs_vkCmdEndRenderingKHR = reinterpret_cast<PFN_vkCmdEndRenderingKHR>(vkGetInstanceProcAddr(info->Instance, "vkCmdEndRenderingKHR")); |
| #endif |
| IM_ASSERT(ImGuiImplVulkanFuncs_vkCmdBeginRenderingKHR != nullptr); |
| IM_ASSERT(ImGuiImplVulkanFuncs_vkCmdEndRenderingKHR != nullptr); |
| #else |
| IM_ASSERT(0 && "Can't use dynamic rendering when neither VK_VERSION_1_3 or VK_KHR_dynamic_rendering is defined."); |
| #endif |
| } |
| |
| ImGuiIO& io = ImGui::GetIO(); |
| IMGUI_CHECKVERSION(); |
| IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!"); |
| |
| // Setup backend capabilities flags |
| ImGui_ImplVulkan_Data* bd = IM_NEW(ImGui_ImplVulkan_Data)(); |
| io.BackendRendererUserData = (void*)bd; |
| io.BackendRendererName = "imgui_impl_vulkan"; |
| io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset; // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes. |
| io.BackendFlags |= ImGuiBackendFlags_RendererHasViewports; // We can create multi-viewports on the Renderer side (optional) |
| |
| IM_ASSERT(info->Instance != VK_NULL_HANDLE); |
| IM_ASSERT(info->PhysicalDevice != VK_NULL_HANDLE); |
| IM_ASSERT(info->Device != VK_NULL_HANDLE); |
| IM_ASSERT(info->Queue != VK_NULL_HANDLE); |
| IM_ASSERT(info->DescriptorPool != VK_NULL_HANDLE); |
| IM_ASSERT(info->MinImageCount >= 2); |
| IM_ASSERT(info->ImageCount >= info->MinImageCount); |
| if (info->UseDynamicRendering == false) |
| IM_ASSERT(info->RenderPass != VK_NULL_HANDLE); |
| |
| bd->VulkanInitInfo = *info; |
| |
| ImGui_ImplVulkan_CreateDeviceObjects(); |
| |
| // Our render function expect RendererUserData to be storing the window render buffer we need (for the main viewport we won't use ->Window) |
| ImGuiViewport* main_viewport = ImGui::GetMainViewport(); |
| main_viewport->RendererUserData = IM_NEW(ImGui_ImplVulkan_ViewportData)(); |
| |
| ImGui_ImplVulkan_InitMultiViewportSupport(); |
| |
| return true; |
| } |
| |
| void ImGui_ImplVulkan_Shutdown() |
| { |
| ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); |
| IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?"); |
| ImGuiIO& io = ImGui::GetIO(); |
| |
| // First destroy objects in all viewports |
| ImGui_ImplVulkan_DestroyDeviceObjects(); |
| |
| // Manually delete main viewport render data in-case we haven't initialized for viewports |
| ImGuiViewport* main_viewport = ImGui::GetMainViewport(); |
| if (ImGui_ImplVulkan_ViewportData* vd = (ImGui_ImplVulkan_ViewportData*)main_viewport->RendererUserData) |
| IM_DELETE(vd); |
| main_viewport->RendererUserData = nullptr; |
| |
| // Clean up windows |
| ImGui_ImplVulkan_ShutdownMultiViewportSupport(); |
| |
| io.BackendRendererName = nullptr; |
| io.BackendRendererUserData = nullptr; |
| io.BackendFlags &= ~(ImGuiBackendFlags_RendererHasVtxOffset | ImGuiBackendFlags_RendererHasViewports); |
| IM_DELETE(bd); |
| } |
| |
| void ImGui_ImplVulkan_NewFrame() |
| { |
| ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); |
| IM_ASSERT(bd != nullptr && "Context or backend not initialized! Did you call ImGui_ImplVulkan_Init()?"); |
| |
| if (!bd->FontDescriptorSet) |
| ImGui_ImplVulkan_CreateFontsTexture(); |
| } |
| |
| void ImGui_ImplVulkan_SetMinImageCount(uint32_t min_image_count) |
| { |
| ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); |
| IM_ASSERT(min_image_count >= 2); |
| if (bd->VulkanInitInfo.MinImageCount == min_image_count) |
| return; |
| |
| IM_ASSERT(0); // FIXME-VIEWPORT: Unsupported. Need to recreate all swap chains! |
| ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo; |
| VkResult err = vkDeviceWaitIdle(v->Device); |
| check_vk_result(err); |
| ImGui_ImplVulkanH_DestroyAllViewportsRenderBuffers(v->Device, v->Allocator); |
| |
| bd->VulkanInitInfo.MinImageCount = min_image_count; |
| } |
| |
| // Register a texture |
| // FIXME: This is experimental in the sense that we are unsure how to best design/tackle this problem, please post to https://github.com/ocornut/imgui/pull/914 if you have suggestions. |
| VkDescriptorSet ImGui_ImplVulkan_AddTexture(VkSampler sampler, VkImageView image_view, VkImageLayout image_layout) |
| { |
| ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); |
| ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo; |
| |
| // Create Descriptor Set: |
| VkDescriptorSet descriptor_set; |
| { |
| VkDescriptorSetAllocateInfo alloc_info = {}; |
| alloc_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO; |
| alloc_info.descriptorPool = v->DescriptorPool; |
| alloc_info.descriptorSetCount = 1; |
| alloc_info.pSetLayouts = &bd->DescriptorSetLayout; |
| VkResult err = vkAllocateDescriptorSets(v->Device, &alloc_info, &descriptor_set); |
| check_vk_result(err); |
| } |
| |
| // Update the Descriptor Set: |
| { |
| VkDescriptorImageInfo desc_image[1] = {}; |
| desc_image[0].sampler = sampler; |
| desc_image[0].imageView = image_view; |
| desc_image[0].imageLayout = image_layout; |
| VkWriteDescriptorSet write_desc[1] = {}; |
| write_desc[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET; |
| write_desc[0].dstSet = descriptor_set; |
| write_desc[0].descriptorCount = 1; |
| write_desc[0].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER; |
| write_desc[0].pImageInfo = desc_image; |
| vkUpdateDescriptorSets(v->Device, 1, write_desc, 0, nullptr); |
| } |
| return descriptor_set; |
| } |
| |
| void ImGui_ImplVulkan_RemoveTexture(VkDescriptorSet descriptor_set) |
| { |
| ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); |
| ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo; |
| vkFreeDescriptorSets(v->Device, v->DescriptorPool, 1, &descriptor_set); |
| } |
| |
| void ImGui_ImplVulkan_DestroyFrameRenderBuffers(VkDevice device, ImGui_ImplVulkan_FrameRenderBuffers* buffers, const VkAllocationCallbacks* allocator) |
| { |
| if (buffers->VertexBuffer) { vkDestroyBuffer(device, buffers->VertexBuffer, allocator); buffers->VertexBuffer = VK_NULL_HANDLE; } |
| if (buffers->VertexBufferMemory) { vkFreeMemory(device, buffers->VertexBufferMemory, allocator); buffers->VertexBufferMemory = VK_NULL_HANDLE; } |
| if (buffers->IndexBuffer) { vkDestroyBuffer(device, buffers->IndexBuffer, allocator); buffers->IndexBuffer = VK_NULL_HANDLE; } |
| if (buffers->IndexBufferMemory) { vkFreeMemory(device, buffers->IndexBufferMemory, allocator); buffers->IndexBufferMemory = VK_NULL_HANDLE; } |
| buffers->VertexBufferSize = 0; |
| buffers->IndexBufferSize = 0; |
| } |
| |
| void ImGui_ImplVulkan_DestroyWindowRenderBuffers(VkDevice device, ImGui_ImplVulkan_WindowRenderBuffers* buffers, const VkAllocationCallbacks* allocator) |
| { |
| for (uint32_t n = 0; n < buffers->Count; n++) |
| ImGui_ImplVulkan_DestroyFrameRenderBuffers(device, &buffers->FrameRenderBuffers[n], allocator); |
| IM_FREE(buffers->FrameRenderBuffers); |
| buffers->FrameRenderBuffers = nullptr; |
| buffers->Index = 0; |
| buffers->Count = 0; |
| } |
| |
| //------------------------------------------------------------------------- |
| // Internal / Miscellaneous Vulkan Helpers |
| // (Used by example's main.cpp. Used by multi-viewport features. PROBABLY NOT used by your own app.) |
| //------------------------------------------------------------------------- |
| // You probably do NOT need to use or care about those functions. |
| // Those functions only exist because: |
| // 1) they facilitate the readability and maintenance of the multiple main.cpp examples files. |
| // 2) the upcoming multi-viewport feature will need them internally. |
| // Generally we avoid exposing any kind of superfluous high-level helpers in the backends, |
| // but it is too much code to duplicate everywhere so we exceptionally expose them. |
| // |
| // Your engine/app will likely _already_ have code to setup all that stuff (swap chain, render pass, frame buffers, etc.). |
| // You may read this code to learn about Vulkan, but it is recommended you use you own custom tailored code to do equivalent work. |
| // (The ImGui_ImplVulkanH_XXX functions do not interact with any of the state used by the regular ImGui_ImplVulkan_XXX functions) |
| //------------------------------------------------------------------------- |
| |
| VkSurfaceFormatKHR ImGui_ImplVulkanH_SelectSurfaceFormat(VkPhysicalDevice physical_device, VkSurfaceKHR surface, const VkFormat* request_formats, int request_formats_count, VkColorSpaceKHR request_color_space) |
| { |
| IM_ASSERT(g_FunctionsLoaded && "Need to call ImGui_ImplVulkan_LoadFunctions() if IMGUI_IMPL_VULKAN_NO_PROTOTYPES or VK_NO_PROTOTYPES are set!"); |
| IM_ASSERT(request_formats != nullptr); |
| IM_ASSERT(request_formats_count > 0); |
| |
| // Per Spec Format and View Format are expected to be the same unless VK_IMAGE_CREATE_MUTABLE_BIT was set at image creation |
| // Assuming that the default behavior is without setting this bit, there is no need for separate Swapchain image and image view format |
| // Additionally several new color spaces were introduced with Vulkan Spec v1.0.40, |
| // hence we must make sure that a format with the mostly available color space, VK_COLOR_SPACE_SRGB_NONLINEAR_KHR, is found and used. |
| uint32_t avail_count; |
| vkGetPhysicalDeviceSurfaceFormatsKHR(physical_device, surface, &avail_count, nullptr); |
| ImVector<VkSurfaceFormatKHR> avail_format; |
| avail_format.resize((int)avail_count); |
| vkGetPhysicalDeviceSurfaceFormatsKHR(physical_device, surface, &avail_count, avail_format.Data); |
| |
| // First check if only one format, VK_FORMAT_UNDEFINED, is available, which would imply that any format is available |
| if (avail_count == 1) |
| { |
| if (avail_format[0].format == VK_FORMAT_UNDEFINED) |
| { |
| VkSurfaceFormatKHR ret; |
| ret.format = request_formats[0]; |
| ret.colorSpace = request_color_space; |
| return ret; |
| } |
| else |
| { |
| // No point in searching another format |
| return avail_format[0]; |
| } |
| } |
| else |
| { |
| // Request several formats, the first found will be used |
| for (int request_i = 0; request_i < request_formats_count; request_i++) |
| for (uint32_t avail_i = 0; avail_i < avail_count; avail_i++) |
| if (avail_format[avail_i].format == request_formats[request_i] && avail_format[avail_i].colorSpace == request_color_space) |
| return avail_format[avail_i]; |
| |
| // If none of the requested image formats could be found, use the first available |
| return avail_format[0]; |
| } |
| } |
| |
| VkPresentModeKHR ImGui_ImplVulkanH_SelectPresentMode(VkPhysicalDevice physical_device, VkSurfaceKHR surface, const VkPresentModeKHR* request_modes, int request_modes_count) |
| { |
| IM_ASSERT(g_FunctionsLoaded && "Need to call ImGui_ImplVulkan_LoadFunctions() if IMGUI_IMPL_VULKAN_NO_PROTOTYPES or VK_NO_PROTOTYPES are set!"); |
| IM_ASSERT(request_modes != nullptr); |
| IM_ASSERT(request_modes_count > 0); |
| |
| // Request a certain mode and confirm that it is available. If not use VK_PRESENT_MODE_FIFO_KHR which is mandatory |
| uint32_t avail_count = 0; |
| vkGetPhysicalDeviceSurfacePresentModesKHR(physical_device, surface, &avail_count, nullptr); |
| ImVector<VkPresentModeKHR> avail_modes; |
| avail_modes.resize((int)avail_count); |
| vkGetPhysicalDeviceSurfacePresentModesKHR(physical_device, surface, &avail_count, avail_modes.Data); |
| //for (uint32_t avail_i = 0; avail_i < avail_count; avail_i++) |
| // printf("[vulkan] avail_modes[%d] = %d\n", avail_i, avail_modes[avail_i]); |
| |
| for (int request_i = 0; request_i < request_modes_count; request_i++) |
| for (uint32_t avail_i = 0; avail_i < avail_count; avail_i++) |
| if (request_modes[request_i] == avail_modes[avail_i]) |
| return request_modes[request_i]; |
| |
| return VK_PRESENT_MODE_FIFO_KHR; // Always available |
| } |
| |
| void ImGui_ImplVulkanH_CreateWindowCommandBuffers(VkPhysicalDevice physical_device, VkDevice device, ImGui_ImplVulkanH_Window* wd, uint32_t queue_family, const VkAllocationCallbacks* allocator) |
| { |
| IM_ASSERT(physical_device != VK_NULL_HANDLE && device != VK_NULL_HANDLE); |
| IM_UNUSED(physical_device); |
| |
| // Create Command Buffers |
| VkResult err; |
| for (uint32_t i = 0; i < wd->ImageCount; i++) |
| { |
| ImGui_ImplVulkanH_Frame* fd = &wd->Frames[i]; |
| { |
| VkCommandPoolCreateInfo info = {}; |
| info.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO; |
| info.flags = 0; |
| info.queueFamilyIndex = queue_family; |
| err = vkCreateCommandPool(device, &info, allocator, &fd->CommandPool); |
| check_vk_result(err); |
| } |
| { |
| VkCommandBufferAllocateInfo info = {}; |
| info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO; |
| info.commandPool = fd->CommandPool; |
| info.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY; |
| info.commandBufferCount = 1; |
| err = vkAllocateCommandBuffers(device, &info, &fd->CommandBuffer); |
| check_vk_result(err); |
| } |
| { |
| VkFenceCreateInfo info = {}; |
| info.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO; |
| info.flags = VK_FENCE_CREATE_SIGNALED_BIT; |
| err = vkCreateFence(device, &info, allocator, &fd->Fence); |
| check_vk_result(err); |
| } |
| } |
| |
| for (uint32_t i = 0; i < wd->SemaphoreCount; i++) |
| { |
| ImGui_ImplVulkanH_FrameSemaphores* fsd = &wd->FrameSemaphores[i]; |
| { |
| VkSemaphoreCreateInfo info = {}; |
| info.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO; |
| err = vkCreateSemaphore(device, &info, allocator, &fsd->ImageAcquiredSemaphore); |
| check_vk_result(err); |
| err = vkCreateSemaphore(device, &info, allocator, &fsd->RenderCompleteSemaphore); |
| check_vk_result(err); |
| } |
| } |
| } |
| |
| int ImGui_ImplVulkanH_GetMinImageCountFromPresentMode(VkPresentModeKHR present_mode) |
| { |
| if (present_mode == VK_PRESENT_MODE_MAILBOX_KHR) |
| return 3; |
| if (present_mode == VK_PRESENT_MODE_FIFO_KHR || present_mode == VK_PRESENT_MODE_FIFO_RELAXED_KHR) |
| return 2; |
| if (present_mode == VK_PRESENT_MODE_IMMEDIATE_KHR) |
| return 1; |
| IM_ASSERT(0); |
| return 1; |
| } |
| |
| // 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) |
| { |
| VkResult err; |
| VkSwapchainKHR old_swapchain = wd->Swapchain; |
| wd->Swapchain = VK_NULL_HANDLE; |
| err = vkDeviceWaitIdle(device); |
| check_vk_result(err); |
| |
| // We don't use ImGui_ImplVulkanH_DestroyWindow() because we want to preserve the old swapchain to create the new one. |
| // Destroy old Framebuffer |
| for (uint32_t i = 0; i < wd->ImageCount; i++) |
| ImGui_ImplVulkanH_DestroyFrame(device, &wd->Frames[i], allocator); |
| for (uint32_t i = 0; i < wd->SemaphoreCount; i++) |
| ImGui_ImplVulkanH_DestroyFrameSemaphores(device, &wd->FrameSemaphores[i], allocator); |
| IM_FREE(wd->Frames); |
| IM_FREE(wd->FrameSemaphores); |
| wd->Frames = nullptr; |
| wd->FrameSemaphores = nullptr; |
| wd->ImageCount = 0; |
| if (wd->RenderPass) |
| vkDestroyRenderPass(device, wd->RenderPass, allocator); |
| |
| // If min image count was not specified, request different count of images dependent on selected present mode |
| if (min_image_count == 0) |
| min_image_count = ImGui_ImplVulkanH_GetMinImageCountFromPresentMode(wd->PresentMode); |
| |
| // Create Swapchain |
| { |
| VkSwapchainCreateInfoKHR info = {}; |
| info.sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR; |
| info.surface = wd->Surface; |
| info.minImageCount = min_image_count; |
| info.imageFormat = wd->SurfaceFormat.format; |
| info.imageColorSpace = wd->SurfaceFormat.colorSpace; |
| info.imageArrayLayers = 1; |
| info.imageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT; |
| info.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE; // Assume that graphics family == present family |
| info.preTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR; |
| info.compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR; |
| info.presentMode = wd->PresentMode; |
| info.clipped = VK_TRUE; |
| info.oldSwapchain = old_swapchain; |
| VkSurfaceCapabilitiesKHR cap; |
| err = vkGetPhysicalDeviceSurfaceCapabilitiesKHR(physical_device, wd->Surface, &cap); |
| check_vk_result(err); |
| if (info.minImageCount < cap.minImageCount) |
| info.minImageCount = cap.minImageCount; |
| else if (cap.maxImageCount != 0 && info.minImageCount > cap.maxImageCount) |
| info.minImageCount = cap.maxImageCount; |
| |
| if (cap.currentExtent.width == 0xffffffff) |
| { |
| info.imageExtent.width = wd->Width = w; |
| info.imageExtent.height = wd->Height = h; |
| } |
| else |
| { |
| info.imageExtent.width = wd->Width = cap.currentExtent.width; |
| info.imageExtent.height = wd->Height = cap.currentExtent.height; |
| } |
| err = vkCreateSwapchainKHR(device, &info, allocator, &wd->Swapchain); |
| check_vk_result(err); |
| err = vkGetSwapchainImagesKHR(device, wd->Swapchain, &wd->ImageCount, nullptr); |
| check_vk_result(err); |
| VkImage backbuffers[16] = {}; |
| IM_ASSERT(wd->ImageCount >= min_image_count); |
| IM_ASSERT(wd->ImageCount < IM_ARRAYSIZE(backbuffers)); |
| err = vkGetSwapchainImagesKHR(device, wd->Swapchain, &wd->ImageCount, backbuffers); |
| check_vk_result(err); |
| |
| IM_ASSERT(wd->Frames == nullptr && wd->FrameSemaphores == nullptr); |
| wd->SemaphoreCount = wd->ImageCount + 1; |
| wd->Frames = (ImGui_ImplVulkanH_Frame*)IM_ALLOC(sizeof(ImGui_ImplVulkanH_Frame) * wd->ImageCount); |
| wd->FrameSemaphores = (ImGui_ImplVulkanH_FrameSemaphores*)IM_ALLOC(sizeof(ImGui_ImplVulkanH_FrameSemaphores) * wd->SemaphoreCount); |
| memset((void*)wd->Frames, 0, sizeof(wd->Frames[0]) * wd->ImageCount); |
| memset((void*)wd->FrameSemaphores, 0, sizeof(wd->FrameSemaphores[0]) * wd->SemaphoreCount); |
| for (uint32_t i = 0; i < wd->ImageCount; i++) |
| wd->Frames[i].Backbuffer = backbuffers[i]; |
| } |
| if (old_swapchain) |
| vkDestroySwapchainKHR(device, old_swapchain, allocator); |
| |
| // Create the Render Pass |
| if (wd->UseDynamicRendering == false) |
| { |
| VkAttachmentDescription attachment = {}; |
| attachment.format = wd->SurfaceFormat.format; |
| attachment.samples = VK_SAMPLE_COUNT_1_BIT; |
| attachment.loadOp = wd->ClearEnable ? VK_ATTACHMENT_LOAD_OP_CLEAR : VK_ATTACHMENT_LOAD_OP_DONT_CARE; |
| attachment.storeOp = VK_ATTACHMENT_STORE_OP_STORE; |
| attachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE; |
| attachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE; |
| attachment.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED; |
| attachment.finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR; |
| VkAttachmentReference color_attachment = {}; |
| color_attachment.attachment = 0; |
| color_attachment.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL; |
| VkSubpassDescription subpass = {}; |
| subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS; |
| subpass.colorAttachmentCount = 1; |
| subpass.pColorAttachments = &color_attachment; |
| VkSubpassDependency dependency = {}; |
| dependency.srcSubpass = VK_SUBPASS_EXTERNAL; |
| dependency.dstSubpass = 0; |
| dependency.srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT; |
| dependency.dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT; |
| dependency.srcAccessMask = 0; |
| dependency.dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT; |
| VkRenderPassCreateInfo info = {}; |
| info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO; |
| info.attachmentCount = 1; |
| info.pAttachments = &attachment; |
| info.subpassCount = 1; |
| info.pSubpasses = &subpass; |
| info.dependencyCount = 1; |
| info.pDependencies = &dependency; |
| err = vkCreateRenderPass(device, &info, allocator, &wd->RenderPass); |
| check_vk_result(err); |
| |
| // We do not create a pipeline by default as this is also used by examples' main.cpp, |
| // but secondary viewport in multi-viewport mode may want to create one with: |
| //ImGui_ImplVulkan_CreatePipeline(device, allocator, VK_NULL_HANDLE, wd->RenderPass, VK_SAMPLE_COUNT_1_BIT, &wd->Pipeline, v->Subpass); |
| } |
| |
| // Create The Image Views |
| { |
| VkImageViewCreateInfo info = {}; |
| info.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO; |
| info.viewType = VK_IMAGE_VIEW_TYPE_2D; |
| info.format = wd->SurfaceFormat.format; |
| info.components.r = VK_COMPONENT_SWIZZLE_R; |
| info.components.g = VK_COMPONENT_SWIZZLE_G; |
| info.components.b = VK_COMPONENT_SWIZZLE_B; |
| info.components.a = VK_COMPONENT_SWIZZLE_A; |
| VkImageSubresourceRange image_range = { VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 }; |
| info.subresourceRange = image_range; |
| for (uint32_t i = 0; i < wd->ImageCount; i++) |
| { |
| ImGui_ImplVulkanH_Frame* fd = &wd->Frames[i]; |
| info.image = fd->Backbuffer; |
| err = vkCreateImageView(device, &info, allocator, &fd->BackbufferView); |
| check_vk_result(err); |
| } |
| } |
| |
| // Create Framebuffer |
| if (wd->UseDynamicRendering == false) |
| { |
| VkImageView attachment[1]; |
| VkFramebufferCreateInfo info = {}; |
| info.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO; |
| info.renderPass = wd->RenderPass; |
| info.attachmentCount = 1; |
| info.pAttachments = attachment; |
| info.width = wd->Width; |
| info.height = wd->Height; |
| info.layers = 1; |
| for (uint32_t i = 0; i < wd->ImageCount; i++) |
| { |
| ImGui_ImplVulkanH_Frame* fd = &wd->Frames[i]; |
| attachment[0] = fd->BackbufferView; |
| err = vkCreateFramebuffer(device, &info, allocator, &fd->Framebuffer); |
| check_vk_result(err); |
| } |
| } |
| } |
| |
| // 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) |
| { |
| 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_ImplVulkan_CreatePipeline(device, allocator, VK_NULL_HANDLE, wd->RenderPass, VK_SAMPLE_COUNT_1_BIT, &wd->Pipeline, g_VulkanInitInfo.Subpass); |
| ImGui_ImplVulkanH_CreateWindowCommandBuffers(physical_device, device, wd, queue_family, allocator); |
| } |
| |
| void ImGui_ImplVulkanH_DestroyWindow(VkInstance instance, VkDevice device, ImGui_ImplVulkanH_Window* wd, const VkAllocationCallbacks* allocator) |
| { |
| vkDeviceWaitIdle(device); // FIXME: We could wait on the Queue if we had the queue in wd-> (otherwise VulkanH functions can't use globals) |
| //vkQueueWaitIdle(bd->Queue); |
| |
| for (uint32_t i = 0; i < wd->ImageCount; i++) |
| ImGui_ImplVulkanH_DestroyFrame(device, &wd->Frames[i], allocator); |
| for (uint32_t i = 0; i < wd->SemaphoreCount; i++) |
| ImGui_ImplVulkanH_DestroyFrameSemaphores(device, &wd->FrameSemaphores[i], allocator); |
| IM_FREE(wd->Frames); |
| IM_FREE(wd->FrameSemaphores); |
| wd->Frames = nullptr; |
| wd->FrameSemaphores = nullptr; |
| vkDestroyRenderPass(device, wd->RenderPass, allocator); |
| vkDestroySwapchainKHR(device, wd->Swapchain, allocator); |
| vkDestroySurfaceKHR(instance, wd->Surface, allocator); |
| |
| *wd = ImGui_ImplVulkanH_Window(); |
| } |
| |
| void ImGui_ImplVulkanH_DestroyFrame(VkDevice device, ImGui_ImplVulkanH_Frame* fd, const VkAllocationCallbacks* allocator) |
| { |
| vkDestroyFence(device, fd->Fence, allocator); |
| vkFreeCommandBuffers(device, fd->CommandPool, 1, &fd->CommandBuffer); |
| vkDestroyCommandPool(device, fd->CommandPool, allocator); |
| fd->Fence = VK_NULL_HANDLE; |
| fd->CommandBuffer = VK_NULL_HANDLE; |
| fd->CommandPool = VK_NULL_HANDLE; |
| |
| vkDestroyImageView(device, fd->BackbufferView, allocator); |
| vkDestroyFramebuffer(device, fd->Framebuffer, allocator); |
| } |
| |
| void ImGui_ImplVulkanH_DestroyFrameSemaphores(VkDevice device, ImGui_ImplVulkanH_FrameSemaphores* fsd, const VkAllocationCallbacks* allocator) |
| { |
| vkDestroySemaphore(device, fsd->ImageAcquiredSemaphore, allocator); |
| vkDestroySemaphore(device, fsd->RenderCompleteSemaphore, allocator); |
| fsd->ImageAcquiredSemaphore = fsd->RenderCompleteSemaphore = VK_NULL_HANDLE; |
| } |
| |
| void ImGui_ImplVulkanH_DestroyAllViewportsRenderBuffers(VkDevice device, const VkAllocationCallbacks* allocator) |
| { |
| ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO(); |
| for (int n = 0; n < platform_io.Viewports.Size; n++) |
| if (ImGui_ImplVulkan_ViewportData* vd = (ImGui_ImplVulkan_ViewportData*)platform_io.Viewports[n]->RendererUserData) |
| ImGui_ImplVulkan_DestroyWindowRenderBuffers(device, &vd->RenderBuffers, allocator); |
| } |
| |
| //-------------------------------------------------------------------------------------------------------- |
| // MULTI-VIEWPORT / PLATFORM INTERFACE SUPPORT |
| // This is an _advanced_ and _optional_ feature, allowing the backend to create and handle multiple viewports simultaneously. |
| // If you are new to dear imgui or creating a new binding for dear imgui, it is recommended that you completely ignore this section first.. |
| //-------------------------------------------------------------------------------------------------------- |
| |
| static void ImGui_ImplVulkan_CreateWindow(ImGuiViewport* viewport) |
| { |
| ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); |
| ImGui_ImplVulkan_ViewportData* vd = IM_NEW(ImGui_ImplVulkan_ViewportData)(); |
| viewport->RendererUserData = vd; |
| ImGui_ImplVulkanH_Window* wd = &vd->Window; |
| ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo; |
| |
| // Create surface |
| ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO(); |
| VkResult err = (VkResult)platform_io.Platform_CreateVkSurface(viewport, (ImU64)v->Instance, (const void*)v->Allocator, (ImU64*)&wd->Surface); |
| check_vk_result(err); |
| |
| // Check for WSI support |
| VkBool32 res; |
| vkGetPhysicalDeviceSurfaceSupportKHR(v->PhysicalDevice, v->QueueFamily, wd->Surface, &res); |
| if (res != VK_TRUE) |
| { |
| IM_ASSERT(0); // Error: no WSI support on physical device |
| return; |
| } |
| |
| // Select Surface Format |
| ImVector<VkFormat> requestSurfaceImageFormats; |
| #ifdef IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING |
| for (uint32_t n = 0; n < v->PipelineRenderingCreateInfo.colorAttachmentCount; n++) |
| requestSurfaceImageFormats.push_back(v->PipelineRenderingCreateInfo.pColorAttachmentFormats[n]); |
| #endif |
| const VkFormat defaultFormats[] = { VK_FORMAT_B8G8R8A8_UNORM, VK_FORMAT_R8G8B8A8_UNORM, VK_FORMAT_B8G8R8_UNORM, VK_FORMAT_R8G8B8_UNORM }; |
| for (VkFormat format : defaultFormats) |
| requestSurfaceImageFormats.push_back(format); |
| |
| const VkColorSpaceKHR requestSurfaceColorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR; |
| wd->SurfaceFormat = ImGui_ImplVulkanH_SelectSurfaceFormat(v->PhysicalDevice, wd->Surface, requestSurfaceImageFormats.Data, (size_t)requestSurfaceImageFormats.Size, requestSurfaceColorSpace); |
| |
| // Select Present Mode |
| // FIXME-VULKAN: Even thought mailbox seems to get us maximum framerate with a single window, it halves framerate with a second window etc. (w/ Nvidia and SDK 1.82.1) |
| VkPresentModeKHR present_modes[] = { VK_PRESENT_MODE_MAILBOX_KHR, VK_PRESENT_MODE_IMMEDIATE_KHR, VK_PRESENT_MODE_FIFO_KHR }; |
| wd->PresentMode = ImGui_ImplVulkanH_SelectPresentMode(v->PhysicalDevice, wd->Surface, &present_modes[0], IM_ARRAYSIZE(present_modes)); |
| //printf("[vulkan] Secondary window selected PresentMode = %d\n", wd->PresentMode); |
| |
| // Create SwapChain, RenderPass, Framebuffer, etc. |
| wd->ClearEnable = (viewport->Flags & ImGuiViewportFlags_NoRendererClear) ? false : true; |
| wd->UseDynamicRendering = v->UseDynamicRendering; |
| ImGui_ImplVulkanH_CreateOrResizeWindow(v->Instance, v->PhysicalDevice, v->Device, wd, v->QueueFamily, v->Allocator, (int)viewport->Size.x, (int)viewport->Size.y, v->MinImageCount); |
| vd->WindowOwned = true; |
| |
| // Create pipeline (shared by all secondary viewports) |
| if (bd->PipelineForViewports == VK_NULL_HANDLE) |
| ImGui_ImplVulkan_CreatePipeline(v->Device, v->Allocator, VK_NULL_HANDLE, wd->RenderPass, VK_SAMPLE_COUNT_1_BIT, &bd->PipelineForViewports, 0); |
| } |
| |
| static void ImGui_ImplVulkan_DestroyWindow(ImGuiViewport* viewport) |
| { |
| // The main viewport (owned by the application) will always have RendererUserData == 0 since we didn't create the data for it. |
| ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); |
| if (ImGui_ImplVulkan_ViewportData* vd = (ImGui_ImplVulkan_ViewportData*)viewport->RendererUserData) |
| { |
| ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo; |
| if (vd->WindowOwned) |
| ImGui_ImplVulkanH_DestroyWindow(v->Instance, v->Device, &vd->Window, v->Allocator); |
| ImGui_ImplVulkan_DestroyWindowRenderBuffers(v->Device, &vd->RenderBuffers, v->Allocator); |
| IM_DELETE(vd); |
| } |
| viewport->RendererUserData = nullptr; |
| } |
| |
| static void ImGui_ImplVulkan_SetWindowSize(ImGuiViewport* viewport, ImVec2 size) |
| { |
| ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); |
| ImGui_ImplVulkan_ViewportData* vd = (ImGui_ImplVulkan_ViewportData*)viewport->RendererUserData; |
| if (vd == nullptr) // This is nullptr for the main viewport (which is left to the user/app to handle) |
| return; |
| ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo; |
| vd->Window.ClearEnable = (viewport->Flags & ImGuiViewportFlags_NoRendererClear) ? false : true; |
| ImGui_ImplVulkanH_CreateOrResizeWindow(v->Instance, v->PhysicalDevice, v->Device, &vd->Window, v->QueueFamily, v->Allocator, (int)size.x, (int)size.y, v->MinImageCount); |
| } |
| |
| static void ImGui_ImplVulkan_RenderWindow(ImGuiViewport* viewport, void*) |
| { |
| ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); |
| ImGui_ImplVulkan_ViewportData* vd = (ImGui_ImplVulkan_ViewportData*)viewport->RendererUserData; |
| ImGui_ImplVulkanH_Window* wd = &vd->Window; |
| ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo; |
| VkResult err; |
| |
| if (vd->SwapChainNeedRebuild) |
| { |
| ImGui_ImplVulkanH_CreateOrResizeWindow(v->Instance, v->PhysicalDevice, v->Device, wd, v->QueueFamily, v->Allocator, (int)viewport->Size.x, (int)viewport->Size.y, v->MinImageCount); |
| vd->SwapChainNeedRebuild = false; |
| } |
| |
| ImGui_ImplVulkanH_Frame* fd = &wd->Frames[wd->FrameIndex]; |
| ImGui_ImplVulkanH_FrameSemaphores* fsd = &wd->FrameSemaphores[wd->SemaphoreIndex]; |
| { |
| { |
| err = vkAcquireNextImageKHR(v->Device, wd->Swapchain, UINT64_MAX, fsd->ImageAcquiredSemaphore, VK_NULL_HANDLE, &wd->FrameIndex); |
| if (err == VK_ERROR_OUT_OF_DATE_KHR) |
| { |
| // Since we are not going to swap this frame anyway, it's ok that recreation happens on next frame. |
| vd->SwapChainNeedRebuild = true; |
| return; |
| } |
| check_vk_result(err); |
| fd = &wd->Frames[wd->FrameIndex]; |
| } |
| for (;;) |
| { |
| err = vkWaitForFences(v->Device, 1, &fd->Fence, VK_TRUE, 100); |
| if (err == VK_SUCCESS) break; |
| if (err == VK_TIMEOUT) continue; |
| check_vk_result(err); |
| } |
| { |
| err = vkResetCommandPool(v->Device, fd->CommandPool, 0); |
| check_vk_result(err); |
| VkCommandBufferBeginInfo info = {}; |
| info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO; |
| info.flags |= VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT; |
| err = vkBeginCommandBuffer(fd->CommandBuffer, &info); |
| check_vk_result(err); |
| } |
| { |
| ImVec4 clear_color = ImVec4(0.0f, 0.0f, 0.0f, 1.0f); |
| memcpy(&wd->ClearValue.color.float32[0], &clear_color, 4 * sizeof(float)); |
| } |
| #ifdef IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING |
| if (v->UseDynamicRendering) |
| { |
| // Transition swapchain image to a layout suitable for drawing. |
| VkImageMemoryBarrier barrier = {}; |
| barrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER; |
| barrier.dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT; |
| barrier.oldLayout = VK_IMAGE_LAYOUT_UNDEFINED; |
| barrier.newLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL; |
| barrier.image = fd->Backbuffer; |
| barrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT; |
| barrier.subresourceRange.levelCount = 1; |
| barrier.subresourceRange.layerCount = 1; |
| vkCmdPipelineBarrier(fd->CommandBuffer, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, 0, 0, nullptr, 0, nullptr, 1, &barrier); |
| |
| VkRenderingAttachmentInfo attachmentInfo = {}; |
| attachmentInfo.sType = VK_STRUCTURE_TYPE_RENDERING_ATTACHMENT_INFO_KHR; |
| attachmentInfo.imageView = fd->BackbufferView; |
| attachmentInfo.imageLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL; |
| attachmentInfo.resolveMode = VK_RESOLVE_MODE_NONE; |
| attachmentInfo.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR; |
| attachmentInfo.storeOp = VK_ATTACHMENT_STORE_OP_STORE; |
| attachmentInfo.clearValue = wd->ClearValue; |
| |
| VkRenderingInfo renderingInfo = {}; |
| renderingInfo.sType = VK_STRUCTURE_TYPE_RENDERING_INFO_KHR; |
| renderingInfo.renderArea.extent.width = wd->Width; |
| renderingInfo.renderArea.extent.height = wd->Height; |
| renderingInfo.layerCount = 1; |
| renderingInfo.viewMask = 0; |
| renderingInfo.colorAttachmentCount = 1; |
| renderingInfo.pColorAttachments = &attachmentInfo; |
| |
| ImGuiImplVulkanFuncs_vkCmdBeginRenderingKHR(fd->CommandBuffer, &renderingInfo); |
| } |
| else |
| #endif |
| { |
| VkRenderPassBeginInfo info = {}; |
| info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO; |
| info.renderPass = wd->RenderPass; |
| info.framebuffer = fd->Framebuffer; |
| info.renderArea.extent.width = wd->Width; |
| info.renderArea.extent.height = wd->Height; |
| info.clearValueCount = (viewport->Flags & ImGuiViewportFlags_NoRendererClear) ? 0 : 1; |
| info.pClearValues = (viewport->Flags & ImGuiViewportFlags_NoRendererClear) ? nullptr : &wd->ClearValue; |
| vkCmdBeginRenderPass(fd->CommandBuffer, &info, VK_SUBPASS_CONTENTS_INLINE); |
| } |
| } |
| |
| ImGui_ImplVulkan_RenderDrawData(viewport->DrawData, fd->CommandBuffer, bd->PipelineForViewports); |
| |
| { |
| #ifdef IMGUI_IMPL_VULKAN_HAS_DYNAMIC_RENDERING |
| if (v->UseDynamicRendering) |
| { |
| ImGuiImplVulkanFuncs_vkCmdEndRenderingKHR(fd->CommandBuffer); |
| |
| // Transition image to a layout suitable for presentation |
| VkImageMemoryBarrier barrier = {}; |
| barrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER; |
| barrier.srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT; |
| barrier.oldLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL; |
| barrier.newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR; |
| barrier.image = fd->Backbuffer; |
| barrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT; |
| barrier.subresourceRange.levelCount = 1; |
| barrier.subresourceRange.layerCount = 1; |
| vkCmdPipelineBarrier(fd->CommandBuffer, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, 0, 0, nullptr, 0, nullptr, 1, &barrier); |
| } |
| else |
| #endif |
| { |
| vkCmdEndRenderPass(fd->CommandBuffer); |
| } |
| { |
| VkPipelineStageFlags wait_stage = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT; |
| VkSubmitInfo info = {}; |
| info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO; |
| info.waitSemaphoreCount = 1; |
| info.pWaitSemaphores = &fsd->ImageAcquiredSemaphore; |
| info.pWaitDstStageMask = &wait_stage; |
| info.commandBufferCount = 1; |
| info.pCommandBuffers = &fd->CommandBuffer; |
| info.signalSemaphoreCount = 1; |
| info.pSignalSemaphores = &fsd->RenderCompleteSemaphore; |
| |
| err = vkEndCommandBuffer(fd->CommandBuffer); |
| check_vk_result(err); |
| err = vkResetFences(v->Device, 1, &fd->Fence); |
| check_vk_result(err); |
| err = vkQueueSubmit(v->Queue, 1, &info, fd->Fence); |
| check_vk_result(err); |
| } |
| } |
| } |
| |
| static void ImGui_ImplVulkan_SwapBuffers(ImGuiViewport* viewport, void*) |
| { |
| ImGui_ImplVulkan_Data* bd = ImGui_ImplVulkan_GetBackendData(); |
| ImGui_ImplVulkan_ViewportData* vd = (ImGui_ImplVulkan_ViewportData*)viewport->RendererUserData; |
| ImGui_ImplVulkanH_Window* wd = &vd->Window; |
| ImGui_ImplVulkan_InitInfo* v = &bd->VulkanInitInfo; |
| |
| if (vd->SwapChainNeedRebuild) // Frame data became invalid in the middle of rendering |
| return; |
| |
| VkResult err; |
| uint32_t present_index = wd->FrameIndex; |
| |
| ImGui_ImplVulkanH_FrameSemaphores* fsd = &wd->FrameSemaphores[wd->SemaphoreIndex]; |
| VkPresentInfoKHR info = {}; |
| info.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR; |
| info.waitSemaphoreCount = 1; |
| info.pWaitSemaphores = &fsd->RenderCompleteSemaphore; |
| info.swapchainCount = 1; |
| info.pSwapchains = &wd->Swapchain; |
| info.pImageIndices = &present_index; |
| err = vkQueuePresentKHR(v->Queue, &info); |
| if (err == VK_ERROR_OUT_OF_DATE_KHR || err == VK_SUBOPTIMAL_KHR) |
| { |
| vd->SwapChainNeedRebuild = true; |
| if (err == VK_ERROR_OUT_OF_DATE_KHR) |
| return; |
| } |
| else |
| { |
| 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 |
| } |
| |
| void ImGui_ImplVulkan_InitMultiViewportSupport() |
| { |
| ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO(); |
| if (ImGui::GetIO().ConfigFlags & ImGuiConfigFlags_ViewportsEnable) |
| IM_ASSERT(platform_io.Platform_CreateVkSurface != nullptr && "Platform needs to setup the CreateVkSurface handler."); |
| platform_io.Renderer_CreateWindow = ImGui_ImplVulkan_CreateWindow; |
| platform_io.Renderer_DestroyWindow = ImGui_ImplVulkan_DestroyWindow; |
| platform_io.Renderer_SetWindowSize = ImGui_ImplVulkan_SetWindowSize; |
| platform_io.Renderer_RenderWindow = ImGui_ImplVulkan_RenderWindow; |
| platform_io.Renderer_SwapBuffers = ImGui_ImplVulkan_SwapBuffers; |
| } |
| |
| void ImGui_ImplVulkan_ShutdownMultiViewportSupport() |
| { |
| ImGui::DestroyPlatformWindows(); |
| } |
| |
| //----------------------------------------------------------------------------- |
| |
| #endif // #ifndef IMGUI_DISABLE |
