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Vulkan: Added extra parameter to ImGui_ImplVulkan_RenderDrawData(). User is in charge of owning/storing 1 ImGui_ImplVulkan_FrameRenderBuffers per in-flight rendering frame. Removed ImGui_ImplVulkan_SetFramesQueueSize. (#2461, #2348, #2378, #2097, #2071, #1677)

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This commit is contained in:
omar
2019-04-04 22:27:29 +02:00
parent 6bf981c85c
commit 66f4be2e13
5 changed files with 109 additions and 128 deletions
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35
examples/imgui_impl_vulkan.h
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@ -38,12 +38,26 @@ struct ImGui_ImplVulkan_InitInfo
void (*CheckVkResultFn)(VkResult err);
};
// Reusable buffers used for rendering by current in-flight frame, for ImGui_ImplVulkan_RenderDrawData()
// [Please zero-clear before use!]
// In the examples we store those in the helper ImGui_ImplVulkanH_FrameData structure, however as your own engine/app likely won't use the ImGui_Impl_VulkanH_XXXX helpers,
// you are expected to hold on as many ImGui_ImplVulkan_FrameRenderBuffers structures on your side as you have in-flight frames (== init_info.FramesQueueSize)
struct ImGui_ImplVulkan_FrameRenderBuffers
{
VkDeviceMemory VertexBufferMemory;
VkDeviceMemory IndexBufferMemory;
VkDeviceSize VertexBufferSize;
VkDeviceSize IndexBufferSize;
VkBuffer VertexBuffer;
VkBuffer IndexBuffer;
};
// Called by user code
IMGUI_IMPL_API bool ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo* info, VkRenderPass render_pass);
IMGUI_IMPL_API void ImGui_ImplVulkan_Shutdown();
IMGUI_IMPL_API void ImGui_ImplVulkan_NewFrame();
IMGUI_IMPL_API void ImGui_ImplVulkan_SetFramesQueueSize(int frames_queue_size); // To override FramesQueueSize after initialization
IMGUI_IMPL_API void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer command_buffer);
IMGUI_IMPL_API void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer command_buffer, ImGui_ImplVulkan_FrameRenderBuffers* buffers);
IMGUI_IMPL_API bool ImGui_ImplVulkan_CreateFontsTexture(VkCommandBuffer command_buffer);
IMGUI_IMPL_API void ImGui_ImplVulkan_DestroyFontUploadObjects();
@ -71,7 +85,7 @@ IMGUI_IMPL_API void ImGui_ImplVulkan_DestroyDeviceObjects();
struct ImGui_ImplVulkanH_FrameData;
struct ImGui_ImplVulkanH_WindowData;
IMGUI_IMPL_API void ImGui_ImplVulkanH_CreateWindowData(VkPhysicalDevice physical_device, VkDevice device, ImGui_ImplVulkanH_WindowData* wd, uint32_t queue_family, const VkAllocationCallbacks* allocator, int w, int h, uint32_t min_image_count);
IMGUI_IMPL_API void ImGui_ImplVulkanH_CreateWindowData(VkInstance instance, VkPhysicalDevice physical_device, VkDevice device, ImGui_ImplVulkanH_WindowData* wd, uint32_t queue_family, const VkAllocationCallbacks* allocator, int w, int h, uint32_t min_image_count);
IMGUI_IMPL_API void ImGui_ImplVulkanH_DestroyWindowData(VkInstance instance, VkDevice device, ImGui_ImplVulkanH_WindowData* wd, const VkAllocationCallbacks* allocator);
IMGUI_IMPL_API VkSurfaceFormatKHR ImGui_ImplVulkanH_SelectSurfaceFormat(VkPhysicalDevice physical_device, VkSurfaceKHR surface, const VkFormat* request_formats, int request_formats_count, VkColorSpaceKHR request_color_space);
IMGUI_IMPL_API VkPresentModeKHR ImGui_ImplVulkanH_SelectPresentMode(VkPhysicalDevice physical_device, VkSurfaceKHR surface, const VkPresentModeKHR* request_modes, int request_modes_count);
@ -79,6 +93,7 @@ IMGUI_IMPL_API int ImGui_ImplVulkanH_GetMinImageCountFromPresen
// Helper structure to hold the data needed by one rendering frame
// (Used by example's main.cpp. Used by multi-viewport features. Probably NOT used by your own app.)
// [Please zero-clear before use!]
struct ImGui_ImplVulkanH_FrameData
{
VkCommandPool CommandPool;
@ -89,8 +104,7 @@ struct ImGui_ImplVulkanH_FrameData
VkImage Backbuffer;
VkImageView BackbufferView;
VkFramebuffer Framebuffer;
IMGUI_IMPL_API ImGui_ImplVulkanH_FrameData();
ImGui_ImplVulkan_FrameRenderBuffers RenderBuffers;
};
// Helper structure to hold the data needed by one rendering context into one OS window
@ -106,10 +120,15 @@ struct ImGui_ImplVulkanH_WindowData
VkRenderPass RenderPass;
bool ClearEnable;
VkClearValue ClearValue;
uint32_t FramesQueueSize; // Number of simultaneous in-flight frames (returned by vkGetSwapchainImagesKHR)
uint32_t FrameIndex; // Current frame being rendered to (0 <= FrameIndex < FrameInFlightCount)
ImVector<ImGui_ImplVulkanH_FrameData> Frames;
uint32_t FrameIndex; // Current frame being rendered to (0 <= FrameIndex < FrameInFlightCount)
uint32_t FramesQueueSize; // Number of simultaneous in-flight frames (returned by vkGetSwapchainImagesKHR, usually derived from min_image_count)
ImGui_ImplVulkanH_FrameData* Frames;
IMGUI_IMPL_API ImGui_ImplVulkanH_WindowData();
ImGui_ImplVulkanH_WindowData()
{
memset(this, 0, sizeof(*this));
PresentMode = VK_PRESENT_MODE_MAX_ENUM_KHR;
ClearEnable = true;
}
};