mirror of
https://github.com/Drezil/imgui.git
synced 2024-12-21 23:26:36 +00:00
Examples: Vulkan: Moved variables into per-window data, refactored/tweaks to that the bug functions main.cpp for both SDL and GLFW examples match (they'll probably be moved to imgui_impl_vulkan as helpers).
This commit is contained in:
omar
parent
e0f283cfcb
commit
7113fc7dee
@ -18,27 +18,14 @@
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static VkAllocationCallbacks* g_Allocator = NULL;
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static VkInstance g_Instance = VK_NULL_HANDLE;
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static VkSurfaceKHR g_Surface = VK_NULL_HANDLE;
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static VkPhysicalDevice g_PhysicalDevice = VK_NULL_HANDLE;
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static VkDevice g_Device = VK_NULL_HANDLE;
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static VkSwapchainKHR g_Swapchain = VK_NULL_HANDLE;
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static VkRenderPass g_RenderPass = VK_NULL_HANDLE;
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static uint32_t g_QueueFamily = (uint32_t)-1;
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static VkQueue g_Queue = VK_NULL_HANDLE;
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static VkDebugReportCallbackEXT g_DebugReport = VK_NULL_HANDLE;
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static VkSurfaceFormatKHR g_SurfaceFormat;
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static VkPresentModeKHR g_PresentMode;
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static VkPipelineCache g_PipelineCache = VK_NULL_HANDLE;
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static VkDescriptorPool g_DescriptorPool = VK_NULL_HANDLE;
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static int fb_width, fb_height;
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static uint32_t g_BackBufferCount = 0;
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static VkImage g_BackBuffer[IMGUI_MAX_POSSIBLE_BACK_BUFFERS] = {};
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static VkImageView g_BackBufferView[IMGUI_MAX_POSSIBLE_BACK_BUFFERS] = {};
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static VkFramebuffer g_Framebuffer[IMGUI_MAX_POSSIBLE_BACK_BUFFERS] = {};
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struct FrameData
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{
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uint32_t BackbufferIndex; // keep track of recently rendered swapchain frame indices
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@ -47,11 +34,51 @@ struct FrameData
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VkFence Fence;
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VkSemaphore PresentCompleteSemaphore;
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VkSemaphore RenderCompleteSemaphore;
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};
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static uint32_t g_FrameIndex = 0;
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static FrameData g_Frames[IMGUI_VK_QUEUED_FRAMES] = {};
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static VkClearValue g_ClearValue = {};
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FrameData()
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{
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BackbufferIndex = 0;
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CommandPool = VK_NULL_HANDLE;
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CommandBuffer = VK_NULL_HANDLE;
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Fence = VK_NULL_HANDLE;
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PresentCompleteSemaphore = VK_NULL_HANDLE;
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RenderCompleteSemaphore = VK_NULL_HANDLE;
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}
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};
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struct WindowData
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{
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int Width, Height;
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VkSwapchainKHR Swapchain;
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VkSurfaceKHR Surface;
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VkSurfaceFormatKHR SurfaceFormat;
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VkPresentModeKHR PresentMode;
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VkRenderPass RenderPass;
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VkClearValue ClearValue;
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uint32_t BackBufferCount;
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VkImage BackBuffer[IMGUI_MAX_POSSIBLE_BACK_BUFFERS];
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VkImageView BackBufferView[IMGUI_MAX_POSSIBLE_BACK_BUFFERS];
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VkFramebuffer Framebuffer[IMGUI_MAX_POSSIBLE_BACK_BUFFERS];
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uint32_t FrameIndex;
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FrameData Frames[IMGUI_VK_QUEUED_FRAMES];
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WindowData()
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{
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Width = Height = 0;
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Swapchain = VK_NULL_HANDLE;
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Surface = VK_NULL_HANDLE;
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memset(&SurfaceFormat, 0, sizeof(SurfaceFormat));
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PresentMode = VK_PRESENT_MODE_MAX_ENUM_KHR;
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RenderPass = VK_NULL_HANDLE;
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memset(&ClearValue, 0, sizeof(ClearValue));
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BackBufferCount = 0;
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memset(&BackBuffer, 0, sizeof(BackBuffer));
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memset(&BackBufferView, 0, sizeof(BackBufferView));
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memset(&Framebuffer, 0, sizeof(Framebuffer));
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FrameIndex = 0;
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}
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};
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static WindowData g_WindowData;
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static void check_vk_result(VkResult err)
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{
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@ -61,41 +88,42 @@ static void check_vk_result(VkResult err)
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abort();
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}
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static void CreateOrResizeSwapChainAndFrameBuffer(int w, int h)
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static void CreateOrResizeSwapChainAndFrameBuffer(WindowData* wd, int w, int h)
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{
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VkResult err;
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VkSwapchainKHR old_swapchain = g_Swapchain;
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VkSwapchainKHR old_swapchain = wd->Swapchain;
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err = vkDeviceWaitIdle(g_Device);
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check_vk_result(err);
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// Destroy old Framebuffer
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for (uint32_t i = 0; i < g_BackBufferCount; i++)
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for (uint32_t i = 0; i < wd->BackBufferCount; i++)
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{
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if (g_BackBufferView[i])
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vkDestroyImageView(g_Device, g_BackBufferView[i], g_Allocator);
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if (g_Framebuffer[i])
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vkDestroyFramebuffer(g_Device, g_Framebuffer[i], g_Allocator);
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if (wd->BackBufferView[i])
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vkDestroyImageView(g_Device, wd->BackBufferView[i], g_Allocator);
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if (wd->Framebuffer[i])
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vkDestroyFramebuffer(g_Device, wd->Framebuffer[i], g_Allocator);
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}
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if (g_RenderPass)
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vkDestroyRenderPass(g_Device, g_RenderPass, g_Allocator);
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wd->BackBufferCount = 0;
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if (wd->RenderPass)
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vkDestroyRenderPass(g_Device, wd->RenderPass, g_Allocator);
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// Create Swapchain
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{
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VkSwapchainCreateInfoKHR info = {};
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info.sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR;
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info.surface = g_Surface;
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info.imageFormat = g_SurfaceFormat.format;
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info.imageColorSpace = g_SurfaceFormat.colorSpace;
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info.surface = wd->Surface;
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info.imageFormat = wd->SurfaceFormat.format;
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info.imageColorSpace = wd->SurfaceFormat.colorSpace;
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info.imageArrayLayers = 1;
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info.imageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
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info.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE; // Assume that graphics family == present family
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info.preTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
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info.compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
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info.presentMode = g_PresentMode;
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info.presentMode = wd->PresentMode;
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info.clipped = VK_TRUE;
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info.oldSwapchain = old_swapchain;
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VkSurfaceCapabilitiesKHR cap;
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err = vkGetPhysicalDeviceSurfaceCapabilitiesKHR(g_PhysicalDevice, g_Surface, &cap);
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err = vkGetPhysicalDeviceSurfaceCapabilitiesKHR(g_PhysicalDevice, wd->Surface, &cap);
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check_vk_result(err);
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if (cap.maxImageCount > 0)
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info.minImageCount = (cap.minImageCount + 2 < cap.maxImageCount) ? (cap.minImageCount + 2) : cap.maxImageCount;
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@ -104,19 +132,19 @@ static void CreateOrResizeSwapChainAndFrameBuffer(int w, int h)
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if (cap.currentExtent.width == 0xffffffff)
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{
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info.imageExtent.width = fb_width = w;
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info.imageExtent.height = fb_height = h;
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info.imageExtent.width = wd->Width = w;
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info.imageExtent.height = wd->Height = h;
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}
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else
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{
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info.imageExtent.width = fb_width = cap.currentExtent.width;
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info.imageExtent.height = fb_height = cap.currentExtent.height;
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info.imageExtent.width = wd->Width = cap.currentExtent.width;
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info.imageExtent.height = wd->Height = cap.currentExtent.height;
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}
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err = vkCreateSwapchainKHR(g_Device, &info, g_Allocator, &g_Swapchain);
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err = vkCreateSwapchainKHR(g_Device, &info, g_Allocator, &wd->Swapchain);
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check_vk_result(err);
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err = vkGetSwapchainImagesKHR(g_Device, g_Swapchain, &g_BackBufferCount, NULL);
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err = vkGetSwapchainImagesKHR(g_Device, wd->Swapchain, &wd->BackBufferCount, NULL);
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check_vk_result(err);
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err = vkGetSwapchainImagesKHR(g_Device, g_Swapchain, &g_BackBufferCount, g_BackBuffer);
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err = vkGetSwapchainImagesKHR(g_Device, wd->Swapchain, &wd->BackBufferCount, wd->BackBuffer);
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check_vk_result(err);
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}
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if (old_swapchain)
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@ -125,7 +153,7 @@ static void CreateOrResizeSwapChainAndFrameBuffer(int w, int h)
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// Create the Render Pass
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{
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VkAttachmentDescription attachment = {};
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attachment.format = g_SurfaceFormat.format;
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attachment.format = wd->SurfaceFormat.format;
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attachment.samples = VK_SAMPLE_COUNT_1_BIT;
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attachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
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attachment.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
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@ -146,7 +174,7 @@ static void CreateOrResizeSwapChainAndFrameBuffer(int w, int h)
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info.pAttachments = &attachment;
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info.subpassCount = 1;
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info.pSubpasses = &subpass;
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err = vkCreateRenderPass(g_Device, &info, g_Allocator, &g_RenderPass);
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err = vkCreateRenderPass(g_Device, &info, g_Allocator, &wd->RenderPass);
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check_vk_result(err);
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}
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@ -155,17 +183,17 @@ static void CreateOrResizeSwapChainAndFrameBuffer(int w, int h)
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VkImageViewCreateInfo info = {};
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info.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
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info.viewType = VK_IMAGE_VIEW_TYPE_2D;
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info.format = g_SurfaceFormat.format;
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info.format = wd->SurfaceFormat.format;
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info.components.r = VK_COMPONENT_SWIZZLE_R;
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info.components.g = VK_COMPONENT_SWIZZLE_G;
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info.components.b = VK_COMPONENT_SWIZZLE_B;
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info.components.a = VK_COMPONENT_SWIZZLE_A;
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VkImageSubresourceRange image_range = { VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 };
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info.subresourceRange = image_range;
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for (uint32_t i = 0; i < g_BackBufferCount; i++)
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for (uint32_t i = 0; i < wd->BackBufferCount; i++)
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{
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info.image = g_BackBuffer[i];
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err = vkCreateImageView(g_Device, &info, g_Allocator, &g_BackBufferView[i]);
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info.image = wd->BackBuffer[i];
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err = vkCreateImageView(g_Device, &info, g_Allocator, &wd->BackBufferView[i]);
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check_vk_result(err);
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}
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}
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@ -175,16 +203,16 @@ static void CreateOrResizeSwapChainAndFrameBuffer(int w, int h)
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VkImageView attachment[1];
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VkFramebufferCreateInfo info = {};
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info.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
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info.renderPass = g_RenderPass;
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info.renderPass = wd->RenderPass;
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info.attachmentCount = 1;
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info.pAttachments = attachment;
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info.width = fb_width;
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info.height = fb_height;
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info.width = wd->Width;
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info.height = wd->Height;
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info.layers = 1;
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for (uint32_t i = 0; i < g_BackBufferCount; i++)
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for (uint32_t i = 0; i < wd->BackBufferCount; i++)
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{
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attachment[0] = g_BackBufferView[i];
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err = vkCreateFramebuffer(g_Device, &info, g_Allocator, &g_Framebuffer[i]);
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attachment[0] = wd->BackBufferView[i];
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err = vkCreateFramebuffer(g_Device, &info, g_Allocator, &wd->Framebuffer[i]);
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check_vk_result(err);
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}
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}
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@ -199,7 +227,7 @@ static VKAPI_ATTR VkBool32 VKAPI_CALL debug_report(VkDebugReportFlagsEXT flags,
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}
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#endif // IMGUI_VULKAN_DEBUG_REPORT
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static void setup_vulkan(SDL_Window* window, const char** extensions, uint32_t extensions_count)
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static void CreateVulkanInstance(const char** extensions, uint32_t extensions_count)
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{
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VkResult err;
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@ -244,16 +272,11 @@ static void setup_vulkan(SDL_Window* window, const char** extensions, uint32_t e
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check_vk_result(err);
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#endif // IMGUI_VULKAN_DEBUG_REPORT
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}
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}
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// Create Window Surface (with SDL)
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{
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SDL_bool result = SDL_Vulkan_CreateSurface(window, g_Instance, &g_Surface);
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if (result == 0)
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{
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printf("failed to create Vulkan surface\n");
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abort();
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}
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}
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static void SetupVulkan(WindowData* wd)
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{
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VkResult err;
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// Select GPU
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{
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@ -291,7 +314,7 @@ static void setup_vulkan(SDL_Window* window, const char** extensions, uint32_t e
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// Check for WSI support
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{
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VkBool32 res;
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vkGetPhysicalDeviceSurfaceSupportKHR(g_PhysicalDevice, g_QueueFamily, g_Surface, &res);
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vkGetPhysicalDeviceSurfaceSupportKHR(g_PhysicalDevice, g_QueueFamily, wd->Surface, &res);
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if (res != VK_TRUE)
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{
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fprintf(stderr, "Error no WSI support on physical device 0\n");
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@ -304,7 +327,7 @@ static void setup_vulkan(SDL_Window* window, const char** extensions, uint32_t e
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{
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const VkFormat requestSurfaceImageFormat[] = { VK_FORMAT_B8G8R8A8_UNORM, VK_FORMAT_R8G8B8A8_UNORM, VK_FORMAT_B8G8R8_UNORM, VK_FORMAT_R8G8B8_UNORM };
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const VkColorSpaceKHR requestSurfaceColorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
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g_SurfaceFormat = ImGui_ImplVulkan_SelectSurfaceFormat(g_PhysicalDevice, g_Surface, requestSurfaceImageFormat, (size_t)IM_ARRAYSIZE(requestSurfaceImageFormat), requestSurfaceColorSpace);
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wd->SurfaceFormat = ImGui_ImplVulkan_SelectSurfaceFormat(g_PhysicalDevice, wd->Surface, requestSurfaceImageFormat, (size_t)IM_ARRAYSIZE(requestSurfaceImageFormat), requestSurfaceColorSpace);
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}
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@ -315,7 +338,7 @@ static void setup_vulkan(SDL_Window* window, const char** extensions, uint32_t e
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#else
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VkPresentModeKHR present_mode = VK_PRESENT_MODE_FIFO_KHR;
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#endif
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g_PresentMode = ImGui_ImplVulkan_SelectPresentMode(g_PhysicalDevice, g_Surface, &present_mode, 1);
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wd->PresentMode = ImGui_ImplVulkan_SelectPresentMode(g_PhysicalDevice, wd->Surface, &present_mode, 1);
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}
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@ -340,19 +363,10 @@ static void setup_vulkan(SDL_Window* window, const char** extensions, uint32_t e
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vkGetDeviceQueue(g_Device, g_QueueFamily, 0, &g_Queue);
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}
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// Create Framebuffers
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{
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int w, h;
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SDL_GetWindowSize(window, &w, &h);
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CreateOrResizeSwapChainAndFrameBuffer(w, h);
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}
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// Create Command Buffers
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for (int i = 0; i < IMGUI_VK_QUEUED_FRAMES; i++)
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{
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FrameData* fd = &g_Frames[i];
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FrameData* fd = &wd->Frames[i];
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{
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VkCommandPoolCreateInfo info = {};
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info.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
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@ -416,24 +430,25 @@ static void setup_vulkan(SDL_Window* window, const char** extensions, uint32_t e
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static void cleanup_vulkan()
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{
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WindowData* wd = &g_WindowData;
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vkDestroyDescriptorPool(g_Device, g_DescriptorPool, g_Allocator);
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for (int i = 0; i < IMGUI_VK_QUEUED_FRAMES; i++)
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{
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FrameData* fd = &g_Frames[i];
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FrameData* fd = &wd->Frames[i];
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vkDestroyFence(g_Device, fd->Fence, g_Allocator);
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vkFreeCommandBuffers(g_Device, fd->CommandPool, 1, &fd->CommandBuffer);
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vkDestroyCommandPool(g_Device, fd->CommandPool, g_Allocator);
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vkDestroySemaphore(g_Device, fd->PresentCompleteSemaphore, g_Allocator);
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vkDestroySemaphore(g_Device, fd->RenderCompleteSemaphore, g_Allocator);
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}
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for (uint32_t i = 0; i < g_BackBufferCount; i++)
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for (uint32_t i = 0; i < wd->BackBufferCount; i++)
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{
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vkDestroyImageView(g_Device, g_BackBufferView[i], g_Allocator);
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vkDestroyFramebuffer(g_Device, g_Framebuffer[i], g_Allocator);
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vkDestroyImageView(g_Device, wd->BackBufferView[i], g_Allocator);
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vkDestroyFramebuffer(g_Device, wd->Framebuffer[i], g_Allocator);
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}
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vkDestroyRenderPass(g_Device, g_RenderPass, g_Allocator);
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vkDestroySwapchainKHR(g_Device, g_Swapchain, g_Allocator);
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vkDestroySurfaceKHR(g_Instance, g_Surface, g_Allocator);
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vkDestroyRenderPass(g_Device, wd->RenderPass, g_Allocator);
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vkDestroySwapchainKHR(g_Device, wd->Swapchain, g_Allocator);
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vkDestroySurfaceKHR(g_Instance, wd->Surface, g_Allocator);
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#ifdef IMGUI_VULKAN_DEBUG_REPORT
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// Remove the debug report callback
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@ -445,9 +460,9 @@ static void cleanup_vulkan()
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vkDestroyInstance(g_Instance, g_Allocator);
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}
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static void frame_begin()
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static void frame_begin(WindowData* wd)
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{
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FrameData* fd = &g_Frames[g_FrameIndex];
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FrameData* fd = &wd->Frames[wd->FrameIndex];
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VkResult err;
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for (;;)
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{
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@ -457,7 +472,7 @@ static void frame_begin()
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check_vk_result(err);
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}
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{
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err = vkAcquireNextImageKHR(g_Device, g_Swapchain, UINT64_MAX, fd->PresentCompleteSemaphore, VK_NULL_HANDLE, &fd->BackbufferIndex);
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err = vkAcquireNextImageKHR(g_Device, wd->Swapchain, UINT64_MAX, fd->PresentCompleteSemaphore, VK_NULL_HANDLE, &fd->BackbufferIndex);
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check_vk_result(err);
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}
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{
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@ -472,19 +487,19 @@ static void frame_begin()
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{
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VkRenderPassBeginInfo info = {};
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info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
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info.renderPass = g_RenderPass;
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info.framebuffer = g_Framebuffer[fd->BackbufferIndex];
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info.renderArea.extent.width = fb_width;
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info.renderArea.extent.height = fb_height;
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info.renderPass = wd->RenderPass;
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info.framebuffer = wd->Framebuffer[fd->BackbufferIndex];
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info.renderArea.extent.width = wd->Width;
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info.renderArea.extent.height = wd->Height;
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info.clearValueCount = 1;
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info.pClearValues = &g_ClearValue;
|
||||
info.pClearValues = &wd->ClearValue;
|
||||
vkCmdBeginRenderPass(fd->CommandBuffer, &info, VK_SUBPASS_CONTENTS_INLINE);
|
||||
}
|
||||
}
|
||||
|
||||
static void frame_end()
|
||||
static void frame_end(WindowData* wd)
|
||||
{
|
||||
FrameData* fd = &g_Frames[g_FrameIndex];
|
||||
FrameData* fd = &wd->Frames[wd->FrameIndex];
|
||||
VkResult err;
|
||||
vkCmdEndRenderPass(fd->CommandBuffer);
|
||||
{
|
||||
@ -508,23 +523,23 @@ static void frame_end()
|
||||
}
|
||||
}
|
||||
|
||||
static void frame_present()
|
||||
static void frame_present(WindowData* wd)
|
||||
{
|
||||
VkResult err;
|
||||
// If IMGUI_UNLIMITED_FRAME_RATE is defined we present the latest but one frame. Otherwise we present the latest rendered frame
|
||||
#ifdef IMGUI_UNLIMITED_FRAME_RATE
|
||||
uint32_t PresentIndex = (g_FrameIndex + IMGUI_VK_QUEUED_FRAMES - 1) % IMGUI_VK_QUEUED_FRAMES;
|
||||
uint32_t PresentIndex = (wd->FrameIndex + IMGUI_VK_QUEUED_FRAMES - 1) % IMGUI_VK_QUEUED_FRAMES;
|
||||
#else
|
||||
uint32_t PresentIndex = g_FrameIndex;
|
||||
#endif // IMGUI_UNLIMITED_FRAME_RATE
|
||||
|
||||
FrameData* fd = &g_Frames[PresentIndex];
|
||||
FrameData* fd = &wd->Frames[PresentIndex];
|
||||
VkPresentInfoKHR info = {};
|
||||
info.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
|
||||
info.waitSemaphoreCount = 1;
|
||||
info.pWaitSemaphores = &fd->RenderCompleteSemaphore;
|
||||
info.swapchainCount = 1;
|
||||
info.pSwapchains = &g_Swapchain;
|
||||
info.pSwapchains = &wd->Swapchain;
|
||||
info.pImageIndices = &fd->BackbufferIndex;
|
||||
err = vkQueuePresentKHR(g_Queue, &info);
|
||||
check_vk_result(err);
|
||||
@ -545,13 +560,31 @@ int main(int, char**)
|
||||
SDL_Window* window = SDL_CreateWindow("ImGui SDL2+Vulkan example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, SDL_WINDOW_VULKAN|SDL_WINDOW_RESIZABLE);
|
||||
|
||||
// Setup Vulkan
|
||||
uint32_t extensions_count;
|
||||
SDL_Vulkan_GetInstanceExtensions(window, &extensions_count, NULL);
|
||||
const char** sdl_extensions = new const char*[extensions_count];
|
||||
SDL_Vulkan_GetInstanceExtensions(window, &extensions_count, sdl_extensions);
|
||||
setup_vulkan(window, sdl_extensions, extensions_count);
|
||||
uint32_t sdl_extensions_count;
|
||||
SDL_Vulkan_GetInstanceExtensions(window, &sdl_extensions_count, NULL);
|
||||
const char** sdl_extensions = new const char*[sdl_extensions_count];
|
||||
SDL_Vulkan_GetInstanceExtensions(window, &sdl_extensions_count, sdl_extensions);
|
||||
CreateVulkanInstance(sdl_extensions, sdl_extensions_count);
|
||||
delete[] sdl_extensions;
|
||||
|
||||
// Create Window Surface
|
||||
WindowData* wd = &g_WindowData;
|
||||
SDL_bool result = SDL_Vulkan_CreateSurface(window, g_Instance, &wd->Surface);
|
||||
if (result == 0)
|
||||
{
|
||||
printf("Failed to create Vulkan surface.\n");
|
||||
return 1;
|
||||
}
|
||||
|
||||
SetupVulkan(wd);
|
||||
|
||||
// Create Framebuffers
|
||||
{
|
||||
int w, h;
|
||||
SDL_GetWindowSize(window, &w, &h);
|
||||
CreateOrResizeSwapChainAndFrameBuffer(wd, w, h);
|
||||
}
|
||||
|
||||
// Setup ImGui binding
|
||||
ImGui::CreateContext();
|
||||
|
||||
@ -559,13 +592,15 @@ int main(int, char**)
|
||||
init_info.Allocator = g_Allocator;
|
||||
init_info.PhysicalDevice = g_PhysicalDevice;
|
||||
init_info.Device = g_Device;
|
||||
init_info.RenderPass = g_RenderPass;
|
||||
init_info.RenderPass = wd->RenderPass;
|
||||
init_info.PipelineCache = g_PipelineCache;
|
||||
init_info.DescriptorPool = g_DescriptorPool;
|
||||
init_info.CheckVkResultFn = check_vk_result;
|
||||
|
||||
ImGuiIO& io = ImGui::GetIO(); (void)io;
|
||||
//io.ConfigFlags |= ImGuiConfigFlags_MultiViewports;
|
||||
//io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls
|
||||
|
||||
ImGui_ImplVulkan_Init(&init_info);
|
||||
ImGui_ImplSDL2_Init(window, NULL);
|
||||
|
||||
@ -591,8 +626,8 @@ int main(int, char**)
|
||||
// Upload Fonts
|
||||
{
|
||||
// Use any command queue
|
||||
VkCommandPool command_pool = g_Frames[g_FrameIndex].CommandPool;
|
||||
VkCommandBuffer command_buffer = g_Frames[g_FrameIndex].CommandBuffer;
|
||||
VkCommandPool command_pool = wd->Frames[wd->FrameIndex].CommandPool;
|
||||
VkCommandBuffer command_buffer = wd->Frames[wd->FrameIndex].CommandBuffer;
|
||||
|
||||
VkResult err;
|
||||
err = vkResetCommandPool(g_Device, command_pool, 0);
|
||||
@ -640,7 +675,7 @@ int main(int, char**)
|
||||
if (event.type == SDL_QUIT)
|
||||
done = true;
|
||||
if (event.type == SDL_WINDOWEVENT && event.window.event == SDL_WINDOWEVENT_RESIZED && event.window.windowID == SDL_GetWindowID(window))
|
||||
CreateOrResizeSwapChainAndFrameBuffer((int)event.window.data1, (int)event.window.data2);
|
||||
CreateOrResizeSwapChainAndFrameBuffer(wd, (int)event.window.data1, (int)event.window.data2);
|
||||
}
|
||||
ImGui_ImplVulkan_NewFrame();
|
||||
ImGui_ImplSDL2_NewFrame(window);
|
||||
@ -683,21 +718,25 @@ int main(int, char**)
|
||||
}
|
||||
|
||||
// Rendering
|
||||
memcpy(&g_ClearValue.color.float32[0], &clear_color, 4 * sizeof(float));
|
||||
frame_begin();
|
||||
ImGui_ImplVulkan_Render(g_Frames[g_FrameIndex].CommandBuffer);
|
||||
frame_end();
|
||||
memcpy(&wd->ClearValue.color.float32[0], &clear_color, 4 * sizeof(float));
|
||||
frame_begin(wd);
|
||||
ImGui_ImplVulkan_Render(wd->Frames[wd->FrameIndex].CommandBuffer);
|
||||
frame_end(wd);
|
||||
|
||||
// When IMGUI_UNLIMITED_FRAME_RATE is defined we render into latest image acquired from the swapchain but we display the image which was rendered before.
|
||||
// Hence we must render once and increase the g_FrameIndex without presenting, which we do before entering the render loop.
|
||||
#ifdef IMGUI_UNLIMITED_FRAME_RATE
|
||||
// When IMGUI_UNLIMITED_FRAME_RATE is defined we render into latest image acquired from the swapchain but we display the image which was rendered before.
|
||||
// Hence we must render once and increase the FrameIndex without presenting.
|
||||
if (swap_chain_has_at_least_one_image)
|
||||
frame_present();
|
||||
frame_present(wd);
|
||||
#else
|
||||
frame_present();
|
||||
frame_present(wd);
|
||||
#endif
|
||||
swap_chain_has_at_least_one_image = true;
|
||||
g_FrameIndex = (g_FrameIndex + 1) % IMGUI_VK_QUEUED_FRAMES;
|
||||
wd->FrameIndex = (wd->FrameIndex + 1) % IMGUI_VK_QUEUED_FRAMES;
|
||||
|
||||
// FIXME-PLATFORM
|
||||
ImGui::UpdatePlatformWindows();
|
||||
ImGui::RenderPlatformWindows();
|
||||
}
|
||||
|
||||
// Cleanup
|
||||
|
||||
@ -21,40 +21,67 @@
|
||||
|
||||
static VkAllocationCallbacks* g_Allocator = NULL;
|
||||
static VkInstance g_Instance = VK_NULL_HANDLE;
|
||||
static VkSurfaceKHR g_Surface = VK_NULL_HANDLE;
|
||||
static VkPhysicalDevice g_PhysicalDevice = VK_NULL_HANDLE;
|
||||
static VkDevice g_Device = VK_NULL_HANDLE;
|
||||
static VkSwapchainKHR g_Swapchain = VK_NULL_HANDLE;
|
||||
static VkRenderPass g_RenderPass = VK_NULL_HANDLE;
|
||||
static uint32_t g_QueueFamily = (uint32_t)-1;
|
||||
static VkQueue g_Queue = VK_NULL_HANDLE;
|
||||
static VkDebugReportCallbackEXT g_DebugReport = VK_NULL_HANDLE;
|
||||
|
||||
static VkSurfaceFormatKHR g_SurfaceFormat;
|
||||
static VkPresentModeKHR g_PresentMode;
|
||||
|
||||
static VkPipelineCache g_PipelineCache = VK_NULL_HANDLE;
|
||||
static VkDescriptorPool g_DescriptorPool = VK_NULL_HANDLE;
|
||||
|
||||
static int fb_width, fb_height;
|
||||
static uint32_t g_BackBufferCount = 0;
|
||||
static VkImage g_BackBuffer[IMGUI_MAX_POSSIBLE_BACK_BUFFERS] = {};
|
||||
static VkImageView g_BackBufferView[IMGUI_MAX_POSSIBLE_BACK_BUFFERS] = {};
|
||||
static VkFramebuffer g_Framebuffer[IMGUI_MAX_POSSIBLE_BACK_BUFFERS] = {};
|
||||
|
||||
struct FrameData
|
||||
{
|
||||
uint32_t BackbufferIndex; // keep track of recently rendered swapchain frame indices
|
||||
VkCommandPool CommandPool;
|
||||
VkCommandBuffer CommandBuffer;
|
||||
VkFence Fence;
|
||||
VkSemaphore PresentCompleteSemaphore;
|
||||
VkSemaphore RenderCompleteSemaphore;
|
||||
};
|
||||
static uint32_t g_FrameIndex = 0;
|
||||
static FrameData g_Frames[IMGUI_VK_QUEUED_FRAMES] = {};
|
||||
uint32_t BackbufferIndex; // keep track of recently rendered swapchain frame indices
|
||||
VkCommandPool CommandPool;
|
||||
VkCommandBuffer CommandBuffer;
|
||||
VkFence Fence;
|
||||
VkSemaphore PresentCompleteSemaphore;
|
||||
VkSemaphore RenderCompleteSemaphore;
|
||||
|
||||
static VkClearValue g_ClearValue = {};
|
||||
FrameData()
|
||||
{
|
||||
BackbufferIndex = 0;
|
||||
CommandPool = VK_NULL_HANDLE;
|
||||
CommandBuffer = VK_NULL_HANDLE;
|
||||
Fence = VK_NULL_HANDLE;
|
||||
PresentCompleteSemaphore = VK_NULL_HANDLE;
|
||||
RenderCompleteSemaphore = VK_NULL_HANDLE;
|
||||
}
|
||||
};
|
||||
|
||||
struct WindowData
|
||||
{
|
||||
int Width, Height;
|
||||
VkSwapchainKHR Swapchain;
|
||||
VkSurfaceKHR Surface;
|
||||
VkSurfaceFormatKHR SurfaceFormat;
|
||||
VkPresentModeKHR PresentMode;
|
||||
VkRenderPass RenderPass;
|
||||
VkClearValue ClearValue;
|
||||
uint32_t BackBufferCount;
|
||||
VkImage BackBuffer[IMGUI_MAX_POSSIBLE_BACK_BUFFERS];
|
||||
VkImageView BackBufferView[IMGUI_MAX_POSSIBLE_BACK_BUFFERS];
|
||||
VkFramebuffer Framebuffer[IMGUI_MAX_POSSIBLE_BACK_BUFFERS];
|
||||
uint32_t FrameIndex;
|
||||
FrameData Frames[IMGUI_VK_QUEUED_FRAMES];
|
||||
|
||||
WindowData()
|
||||
{
|
||||
Width = Height = 0;
|
||||
Swapchain = VK_NULL_HANDLE;
|
||||
Surface = VK_NULL_HANDLE;
|
||||
memset(&SurfaceFormat, 0, sizeof(SurfaceFormat));
|
||||
PresentMode = VK_PRESENT_MODE_MAX_ENUM_KHR;
|
||||
RenderPass = VK_NULL_HANDLE;
|
||||
memset(&ClearValue, 0, sizeof(ClearValue));
|
||||
BackBufferCount = 0;
|
||||
memset(&BackBuffer, 0, sizeof(BackBuffer));
|
||||
memset(&BackBufferView, 0, sizeof(BackBufferView));
|
||||
memset(&Framebuffer, 0, sizeof(Framebuffer));
|
||||
FrameIndex = 0;
|
||||
}
|
||||
};
|
||||
static WindowData g_WindowData;
|
||||
|
||||
static void check_vk_result(VkResult err)
|
||||
{
|
||||
@ -64,41 +91,42 @@ static void check_vk_result(VkResult err)
|
||||
abort();
|
||||
}
|
||||
|
||||
static void CreateOrResizeSwapChainAndFrameBuffer(int w, int h)
|
||||
static void CreateOrResizeSwapChainAndFrameBuffer(WindowData* wd, int w, int h)
|
||||
{
|
||||
VkResult err;
|
||||
VkSwapchainKHR old_swapchain = g_Swapchain;
|
||||
VkSwapchainKHR old_swapchain = wd->Swapchain;
|
||||
err = vkDeviceWaitIdle(g_Device);
|
||||
check_vk_result(err);
|
||||
|
||||
// Destroy old Framebuffer
|
||||
for (uint32_t i = 0; i < g_BackBufferCount; i++)
|
||||
for (uint32_t i = 0; i < wd->BackBufferCount; i++)
|
||||
{
|
||||
if (g_BackBufferView[i])
|
||||
vkDestroyImageView(g_Device, g_BackBufferView[i], g_Allocator);
|
||||
if (g_Framebuffer[i])
|
||||
vkDestroyFramebuffer(g_Device, g_Framebuffer[i], g_Allocator);
|
||||
if (wd->BackBufferView[i])
|
||||
vkDestroyImageView(g_Device, wd->BackBufferView[i], g_Allocator);
|
||||
if (wd->Framebuffer[i])
|
||||
vkDestroyFramebuffer(g_Device, wd->Framebuffer[i], g_Allocator);
|
||||
}
|
||||
if (g_RenderPass)
|
||||
vkDestroyRenderPass(g_Device, g_RenderPass, g_Allocator);
|
||||
wd->BackBufferCount = 0;
|
||||
if (wd->RenderPass)
|
||||
vkDestroyRenderPass(g_Device, wd->RenderPass, g_Allocator);
|
||||
|
||||
// Create Swapchain
|
||||
{
|
||||
VkSwapchainCreateInfoKHR info = {};
|
||||
info.sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR;
|
||||
info.surface = g_Surface;
|
||||
info.imageFormat = g_SurfaceFormat.format;
|
||||
info.imageColorSpace = g_SurfaceFormat.colorSpace;
|
||||
info.surface = wd->Surface;
|
||||
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 = g_PresentMode;
|
||||
info.presentMode = wd->PresentMode;
|
||||
info.clipped = VK_TRUE;
|
||||
info.oldSwapchain = old_swapchain;
|
||||
VkSurfaceCapabilitiesKHR cap;
|
||||
err = vkGetPhysicalDeviceSurfaceCapabilitiesKHR(g_PhysicalDevice, g_Surface, &cap);
|
||||
err = vkGetPhysicalDeviceSurfaceCapabilitiesKHR(g_PhysicalDevice, wd->Surface, &cap);
|
||||
check_vk_result(err);
|
||||
if (cap.maxImageCount > 0)
|
||||
info.minImageCount = (cap.minImageCount + 2 < cap.maxImageCount) ? (cap.minImageCount + 2) : cap.maxImageCount;
|
||||
@ -107,19 +135,19 @@ static void CreateOrResizeSwapChainAndFrameBuffer(int w, int h)
|
||||
|
||||
if (cap.currentExtent.width == 0xffffffff)
|
||||
{
|
||||
info.imageExtent.width = fb_width = w;
|
||||
info.imageExtent.height = fb_height = h;
|
||||
info.imageExtent.width = wd->Width = w;
|
||||
info.imageExtent.height = wd->Height = h;
|
||||
}
|
||||
else
|
||||
{
|
||||
info.imageExtent.width = fb_width = cap.currentExtent.width;
|
||||
info.imageExtent.height = fb_height = cap.currentExtent.height;
|
||||
info.imageExtent.width = wd->Width = cap.currentExtent.width;
|
||||
info.imageExtent.height = wd->Height = cap.currentExtent.height;
|
||||
}
|
||||
err = vkCreateSwapchainKHR(g_Device, &info, g_Allocator, &g_Swapchain);
|
||||
err = vkCreateSwapchainKHR(g_Device, &info, g_Allocator, &wd->Swapchain);
|
||||
check_vk_result(err);
|
||||
err = vkGetSwapchainImagesKHR(g_Device, g_Swapchain, &g_BackBufferCount, NULL);
|
||||
err = vkGetSwapchainImagesKHR(g_Device, wd->Swapchain, &wd->BackBufferCount, NULL);
|
||||
check_vk_result(err);
|
||||
err = vkGetSwapchainImagesKHR(g_Device, g_Swapchain, &g_BackBufferCount, g_BackBuffer);
|
||||
err = vkGetSwapchainImagesKHR(g_Device, wd->Swapchain, &wd->BackBufferCount, wd->BackBuffer);
|
||||
check_vk_result(err);
|
||||
}
|
||||
if (old_swapchain)
|
||||
@ -128,7 +156,7 @@ static void CreateOrResizeSwapChainAndFrameBuffer(int w, int h)
|
||||
// Create the Render Pass
|
||||
{
|
||||
VkAttachmentDescription attachment = {};
|
||||
attachment.format = g_SurfaceFormat.format;
|
||||
attachment.format = wd->SurfaceFormat.format;
|
||||
attachment.samples = VK_SAMPLE_COUNT_1_BIT;
|
||||
attachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
|
||||
attachment.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
|
||||
@ -149,7 +177,7 @@ static void CreateOrResizeSwapChainAndFrameBuffer(int w, int h)
|
||||
info.pAttachments = &attachment;
|
||||
info.subpassCount = 1;
|
||||
info.pSubpasses = &subpass;
|
||||
err = vkCreateRenderPass(g_Device, &info, g_Allocator, &g_RenderPass);
|
||||
err = vkCreateRenderPass(g_Device, &info, g_Allocator, &wd->RenderPass);
|
||||
check_vk_result(err);
|
||||
}
|
||||
|
||||
@ -158,17 +186,17 @@ static void CreateOrResizeSwapChainAndFrameBuffer(int w, int h)
|
||||
VkImageViewCreateInfo info = {};
|
||||
info.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
|
||||
info.viewType = VK_IMAGE_VIEW_TYPE_2D;
|
||||
info.format = g_SurfaceFormat.format;
|
||||
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 < g_BackBufferCount; i++)
|
||||
for (uint32_t i = 0; i < wd->BackBufferCount; i++)
|
||||
{
|
||||
info.image = g_BackBuffer[i];
|
||||
err = vkCreateImageView(g_Device, &info, g_Allocator, &g_BackBufferView[i]);
|
||||
info.image = wd->BackBuffer[i];
|
||||
err = vkCreateImageView(g_Device, &info, g_Allocator, &wd->BackBufferView[i]);
|
||||
check_vk_result(err);
|
||||
}
|
||||
}
|
||||
@ -178,26 +206,21 @@ static void CreateOrResizeSwapChainAndFrameBuffer(int w, int h)
|
||||
VkImageView attachment[1];
|
||||
VkFramebufferCreateInfo info = {};
|
||||
info.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
|
||||
info.renderPass = g_RenderPass;
|
||||
info.renderPass = wd->RenderPass;
|
||||
info.attachmentCount = 1;
|
||||
info.pAttachments = attachment;
|
||||
info.width = fb_width;
|
||||
info.height = fb_height;
|
||||
info.width = wd->Width;
|
||||
info.height = wd->Height;
|
||||
info.layers = 1;
|
||||
for (uint32_t i = 0; i < g_BackBufferCount; i++)
|
||||
for (uint32_t i = 0; i < wd->BackBufferCount; i++)
|
||||
{
|
||||
attachment[0] = g_BackBufferView[i];
|
||||
err = vkCreateFramebuffer(g_Device, &info, g_Allocator, &g_Framebuffer[i]);
|
||||
attachment[0] = wd->BackBufferView[i];
|
||||
err = vkCreateFramebuffer(g_Device, &info, g_Allocator, &wd->Framebuffer[i]);
|
||||
check_vk_result(err);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void GlfwResizeCallback(GLFWwindow*, int w, int h)
|
||||
{
|
||||
CreateOrResizeSwapChainAndFrameBuffer(w, h);
|
||||
}
|
||||
|
||||
#ifdef IMGUI_VULKAN_DEBUG_REPORT
|
||||
static VKAPI_ATTR VkBool32 VKAPI_CALL debug_report(VkDebugReportFlagsEXT flags, VkDebugReportObjectTypeEXT objectType, uint64_t object, size_t location, int32_t messageCode, const char* pLayerPrefix, const char* pMessage, void* pUserData)
|
||||
{
|
||||
@ -207,7 +230,7 @@ static VKAPI_ATTR VkBool32 VKAPI_CALL debug_report(VkDebugReportFlagsEXT flags,
|
||||
}
|
||||
#endif // IMGUI_VULKAN_DEBUG_REPORT
|
||||
|
||||
static void setup_vulkan(GLFWwindow* window, const char** extensions, uint32_t extensions_count)
|
||||
static void CreateVulkanInstance(const char** extensions, uint32_t extensions_count)
|
||||
{
|
||||
VkResult err;
|
||||
|
||||
@ -252,12 +275,11 @@ static void setup_vulkan(GLFWwindow* window, const char** extensions, uint32_t e
|
||||
check_vk_result(err);
|
||||
#endif // IMGUI_VULKAN_DEBUG_REPORT
|
||||
}
|
||||
}
|
||||
|
||||
// Create Window Surface (with GLFW)
|
||||
{
|
||||
err = glfwCreateWindowSurface(g_Instance, window, g_Allocator, &g_Surface);
|
||||
check_vk_result(err);
|
||||
}
|
||||
static void SetupVulkan(WindowData* wd)
|
||||
{
|
||||
VkResult err;
|
||||
|
||||
// Select GPU
|
||||
{
|
||||
@ -295,7 +317,7 @@ static void setup_vulkan(GLFWwindow* window, const char** extensions, uint32_t e
|
||||
// Check for WSI support
|
||||
{
|
||||
VkBool32 res;
|
||||
vkGetPhysicalDeviceSurfaceSupportKHR(g_PhysicalDevice, g_QueueFamily, g_Surface, &res);
|
||||
vkGetPhysicalDeviceSurfaceSupportKHR(g_PhysicalDevice, g_QueueFamily, wd->Surface, &res);
|
||||
if (res != VK_TRUE)
|
||||
{
|
||||
fprintf(stderr, "Error no WSI support on physical device 0\n");
|
||||
@ -308,7 +330,7 @@ static void setup_vulkan(GLFWwindow* window, const char** extensions, uint32_t e
|
||||
{
|
||||
const VkFormat requestSurfaceImageFormat[] = { VK_FORMAT_B8G8R8A8_UNORM, VK_FORMAT_R8G8B8A8_UNORM, VK_FORMAT_B8G8R8_UNORM, VK_FORMAT_R8G8B8_UNORM };
|
||||
const VkColorSpaceKHR requestSurfaceColorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
|
||||
g_SurfaceFormat = ImGui_ImplVulkan_SelectSurfaceFormat(g_PhysicalDevice, g_Surface, requestSurfaceImageFormat, (size_t)IM_ARRAYSIZE(requestSurfaceImageFormat), requestSurfaceColorSpace);
|
||||
wd->SurfaceFormat = ImGui_ImplVulkan_SelectSurfaceFormat(g_PhysicalDevice, wd->Surface, requestSurfaceImageFormat, (size_t)IM_ARRAYSIZE(requestSurfaceImageFormat), requestSurfaceColorSpace);
|
||||
}
|
||||
|
||||
|
||||
@ -319,7 +341,7 @@ static void setup_vulkan(GLFWwindow* window, const char** extensions, uint32_t e
|
||||
#else
|
||||
VkPresentModeKHR present_mode = VK_PRESENT_MODE_FIFO_KHR;
|
||||
#endif
|
||||
g_PresentMode = ImGui_ImplVulkan_SelectPresentMode(g_PhysicalDevice, g_Surface, &present_mode, 1);
|
||||
wd->PresentMode = ImGui_ImplVulkan_SelectPresentMode(g_PhysicalDevice, wd->Surface, &present_mode, 1);
|
||||
}
|
||||
|
||||
|
||||
@ -344,20 +366,10 @@ static void setup_vulkan(GLFWwindow* window, const char** extensions, uint32_t e
|
||||
vkGetDeviceQueue(g_Device, g_QueueFamily, 0, &g_Queue);
|
||||
}
|
||||
|
||||
|
||||
// Create Framebuffers
|
||||
{
|
||||
int w, h;
|
||||
glfwGetFramebufferSize(window, &w, &h);
|
||||
CreateOrResizeSwapChainAndFrameBuffer(w, h);
|
||||
glfwSetFramebufferSizeCallback(window, GlfwResizeCallback);
|
||||
}
|
||||
|
||||
|
||||
// Create Command Buffers
|
||||
for (int i = 0; i < IMGUI_VK_QUEUED_FRAMES; i++)
|
||||
{
|
||||
FrameData* fd = &g_Frames[i];
|
||||
FrameData* fd = &wd->Frames[i];
|
||||
{
|
||||
VkCommandPoolCreateInfo info = {};
|
||||
info.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
|
||||
@ -421,24 +433,25 @@ static void setup_vulkan(GLFWwindow* window, const char** extensions, uint32_t e
|
||||
|
||||
static void cleanup_vulkan()
|
||||
{
|
||||
WindowData* wd = &g_WindowData;
|
||||
vkDestroyDescriptorPool(g_Device, g_DescriptorPool, g_Allocator);
|
||||
for (int i = 0; i < IMGUI_VK_QUEUED_FRAMES; i++)
|
||||
{
|
||||
FrameData* fd = &g_Frames[i];
|
||||
FrameData* fd = &wd->Frames[i];
|
||||
vkDestroyFence(g_Device, fd->Fence, g_Allocator);
|
||||
vkFreeCommandBuffers(g_Device, fd->CommandPool, 1, &fd->CommandBuffer);
|
||||
vkDestroyCommandPool(g_Device, fd->CommandPool, g_Allocator);
|
||||
vkDestroySemaphore(g_Device, fd->PresentCompleteSemaphore, g_Allocator);
|
||||
vkDestroySemaphore(g_Device, fd->RenderCompleteSemaphore, g_Allocator);
|
||||
}
|
||||
for (uint32_t i = 0; i < g_BackBufferCount; i++)
|
||||
for (uint32_t i = 0; i < wd->BackBufferCount; i++)
|
||||
{
|
||||
vkDestroyImageView(g_Device, g_BackBufferView[i], g_Allocator);
|
||||
vkDestroyFramebuffer(g_Device, g_Framebuffer[i], g_Allocator);
|
||||
vkDestroyImageView(g_Device, wd->BackBufferView[i], g_Allocator);
|
||||
vkDestroyFramebuffer(g_Device, wd->Framebuffer[i], g_Allocator);
|
||||
}
|
||||
vkDestroyRenderPass(g_Device, g_RenderPass, g_Allocator);
|
||||
vkDestroySwapchainKHR(g_Device, g_Swapchain, g_Allocator);
|
||||
vkDestroySurfaceKHR(g_Instance, g_Surface, g_Allocator);
|
||||
vkDestroyRenderPass(g_Device, wd->RenderPass, g_Allocator);
|
||||
vkDestroySwapchainKHR(g_Device, wd->Swapchain, g_Allocator);
|
||||
vkDestroySurfaceKHR(g_Instance, wd->Surface, g_Allocator);
|
||||
|
||||
#ifdef IMGUI_VULKAN_DEBUG_REPORT
|
||||
// Remove the debug report callback
|
||||
@ -450,9 +463,9 @@ static void cleanup_vulkan()
|
||||
vkDestroyInstance(g_Instance, g_Allocator);
|
||||
}
|
||||
|
||||
static void frame_begin()
|
||||
static void frame_begin(WindowData* wd)
|
||||
{
|
||||
FrameData* fd = &g_Frames[g_FrameIndex];
|
||||
FrameData* fd = &wd->Frames[wd->FrameIndex];
|
||||
VkResult err;
|
||||
for (;;)
|
||||
{
|
||||
@ -462,7 +475,7 @@ static void frame_begin()
|
||||
check_vk_result(err);
|
||||
}
|
||||
{
|
||||
err = vkAcquireNextImageKHR(g_Device, g_Swapchain, UINT64_MAX, fd->PresentCompleteSemaphore, VK_NULL_HANDLE, &fd->BackbufferIndex);
|
||||
err = vkAcquireNextImageKHR(g_Device, wd->Swapchain, UINT64_MAX, fd->PresentCompleteSemaphore, VK_NULL_HANDLE, &fd->BackbufferIndex);
|
||||
check_vk_result(err);
|
||||
}
|
||||
{
|
||||
@ -477,19 +490,19 @@ static void frame_begin()
|
||||
{
|
||||
VkRenderPassBeginInfo info = {};
|
||||
info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
|
||||
info.renderPass = g_RenderPass;
|
||||
info.framebuffer = g_Framebuffer[fd->BackbufferIndex];
|
||||
info.renderArea.extent.width = fb_width;
|
||||
info.renderArea.extent.height = fb_height;
|
||||
info.renderPass = wd->RenderPass;
|
||||
info.framebuffer = wd->Framebuffer[fd->BackbufferIndex];
|
||||
info.renderArea.extent.width = wd->Width;
|
||||
info.renderArea.extent.height = wd->Height;
|
||||
info.clearValueCount = 1;
|
||||
info.pClearValues = &g_ClearValue;
|
||||
info.pClearValues = &wd->ClearValue;
|
||||
vkCmdBeginRenderPass(fd->CommandBuffer, &info, VK_SUBPASS_CONTENTS_INLINE);
|
||||
}
|
||||
}
|
||||
|
||||
static void frame_end()
|
||||
static void frame_end(WindowData* wd)
|
||||
{
|
||||
FrameData* fd = &g_Frames[g_FrameIndex];
|
||||
FrameData* fd = &wd->Frames[wd->FrameIndex];
|
||||
VkResult err;
|
||||
vkCmdEndRenderPass(fd->CommandBuffer);
|
||||
{
|
||||
@ -513,23 +526,23 @@ static void frame_end()
|
||||
}
|
||||
}
|
||||
|
||||
static void frame_present()
|
||||
static void frame_present(WindowData* wd)
|
||||
{
|
||||
VkResult err;
|
||||
// If IMGUI_UNLIMITED_FRAME_RATE is defined we present the latest but one frame. Otherwise we present the latest rendered frame
|
||||
#ifdef IMGUI_UNLIMITED_FRAME_RATE
|
||||
uint32_t PresentIndex = (g_FrameIndex + IMGUI_VK_QUEUED_FRAMES - 1) % IMGUI_VK_QUEUED_FRAMES;
|
||||
uint32_t PresentIndex = (wd->FrameIndex + IMGUI_VK_QUEUED_FRAMES - 1) % IMGUI_VK_QUEUED_FRAMES;
|
||||
#else
|
||||
uint32_t PresentIndex = g_FrameIndex;
|
||||
#endif // IMGUI_UNLIMITED_FRAME_RATE
|
||||
|
||||
FrameData* fd = &g_Frames[PresentIndex];
|
||||
FrameData* fd = &wd->Frames[PresentIndex];
|
||||
VkPresentInfoKHR info = {};
|
||||
info.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
|
||||
info.waitSemaphoreCount = 1;
|
||||
info.pWaitSemaphores = &fd->RenderCompleteSemaphore;
|
||||
info.swapchainCount = 1;
|
||||
info.pSwapchains = &g_Swapchain;
|
||||
info.pSwapchains = &wd->Swapchain;
|
||||
info.pImageIndices = &fd->BackbufferIndex;
|
||||
err = vkQueuePresentKHR(g_Queue, &info);
|
||||
check_vk_result(err);
|
||||
@ -540,6 +553,11 @@ static void glfw_error_callback(int error, const char* description)
|
||||
fprintf(stderr, "Glfw Error %d: %s\n", error, description);
|
||||
}
|
||||
|
||||
static void glfw_resize_callback(GLFWwindow*, int w, int h)
|
||||
{
|
||||
CreateOrResizeSwapChainAndFrameBuffer(&g_WindowData, w, h);
|
||||
}
|
||||
|
||||
int main(int, char**)
|
||||
{
|
||||
// Setup window
|
||||
@ -556,9 +574,26 @@ int main(int, char**)
|
||||
printf("GLFW: Vulkan Not Supported\n");
|
||||
return 1;
|
||||
}
|
||||
uint32_t extensions_count = 0;
|
||||
const char** glfw_extensions = glfwGetRequiredInstanceExtensions(&extensions_count);
|
||||
setup_vulkan(window, glfw_extensions, extensions_count);
|
||||
uint32_t glfw_extensions_count = 0;
|
||||
const char** glfw_extensions = glfwGetRequiredInstanceExtensions(&glfw_extensions_count);
|
||||
CreateVulkanInstance(glfw_extensions, glfw_extensions_count);
|
||||
|
||||
// Create Window Surface
|
||||
WindowData* wd = &g_WindowData;
|
||||
{
|
||||
VkResult err = glfwCreateWindowSurface(g_Instance, window, g_Allocator, &wd->Surface);
|
||||
check_vk_result(err);
|
||||
}
|
||||
|
||||
SetupVulkan(wd);
|
||||
|
||||
// Create Framebuffers
|
||||
{
|
||||
int w, h;
|
||||
glfwGetFramebufferSize(window, &w, &h);
|
||||
CreateOrResizeSwapChainAndFrameBuffer(wd, w, h);
|
||||
glfwSetFramebufferSizeCallback(window, glfw_resize_callback);
|
||||
}
|
||||
|
||||
// Setup ImGui binding
|
||||
ImGui::CreateContext();
|
||||
@ -567,7 +602,7 @@ int main(int, char**)
|
||||
init_info.Allocator = g_Allocator;
|
||||
init_info.PhysicalDevice = g_PhysicalDevice;
|
||||
init_info.Device = g_Device;
|
||||
init_info.RenderPass = g_RenderPass;
|
||||
init_info.RenderPass = wd->RenderPass;
|
||||
init_info.PipelineCache = g_PipelineCache;
|
||||
init_info.DescriptorPool = g_DescriptorPool;
|
||||
init_info.CheckVkResultFn = check_vk_result;
|
||||
@ -601,8 +636,8 @@ int main(int, char**)
|
||||
// Upload Fonts
|
||||
{
|
||||
// Use any command queue
|
||||
VkCommandPool command_pool = g_Frames[g_FrameIndex].CommandPool;
|
||||
VkCommandBuffer command_buffer = g_Frames[g_FrameIndex].CommandBuffer;
|
||||
VkCommandPool command_pool = wd->Frames[wd->FrameIndex].CommandPool;
|
||||
VkCommandBuffer command_buffer = wd->Frames[wd->FrameIndex].CommandBuffer;
|
||||
|
||||
VkResult err;
|
||||
err = vkResetCommandPool(g_Device, command_pool, 0);
|
||||
@ -684,21 +719,21 @@ int main(int, char**)
|
||||
}
|
||||
|
||||
// Rendering
|
||||
memcpy(&g_ClearValue.color.float32[0], &clear_color, 4 * sizeof(float));
|
||||
frame_begin();
|
||||
ImGui_ImplVulkan_Render(g_Frames[g_FrameIndex].CommandBuffer);
|
||||
frame_end();
|
||||
memcpy(&wd->ClearValue.color.float32[0], &clear_color, 4 * sizeof(float));
|
||||
frame_begin(wd);
|
||||
ImGui_ImplVulkan_Render(wd->Frames[wd->FrameIndex].CommandBuffer);
|
||||
frame_end(wd);
|
||||
|
||||
// When IMGUI_UNLIMITED_FRAME_RATE is defined we render into latest image acquired from the swapchain but we display the image which was rendered before.
|
||||
// Hence we must render once and increase the g_FrameIndex without presenting, which we do before entering the render loop.
|
||||
#ifdef IMGUI_UNLIMITED_FRAME_RATE
|
||||
// When IMGUI_UNLIMITED_FRAME_RATE is defined we render into latest image acquired from the swapchain but we display the image which was rendered before.
|
||||
// Hence we must render once and increase the FrameIndex without presenting.
|
||||
if (swap_chain_has_at_least_one_image)
|
||||
frame_present();
|
||||
frame_present(wd);
|
||||
#else
|
||||
frame_present();
|
||||
frame_present(wd);
|
||||
#endif
|
||||
swap_chain_has_at_least_one_image = true;
|
||||
g_FrameIndex = (g_FrameIndex + 1) % IMGUI_VK_QUEUED_FRAMES;
|
||||
wd->FrameIndex = (wd->FrameIndex + 1) % IMGUI_VK_QUEUED_FRAMES;
|
||||
|
||||
// FIXME-PLATFORM
|
||||
ImGui::UpdatePlatformWindows();
|
||||
|
||||
Loading…
Reference in New Issue
Block a user