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Merge branch 'vulkan_fix_master'

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This commit is contained in:
omar 2019-04-07 16:22:47 +02:00
commit ccca76fdea
5 changed files with 445 additions and 286 deletions
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7
docs/CHANGELOG.txt
View File

@ -34,6 +34,11 @@ HOW TO UPDATE?
----------------------------------------------------------------------- -----------------------------------------------------------------------
Breaking Changes: Breaking Changes:
- Examples: Vulkan: Added MinImageCount/ImageCount fields in ImGui_ImplVulkan_InitInfo, required
during initialization to specify the number of in-flight image requested by swap chains.
(was previously a hard #define IMGUI_VK_QUEUED_FRAMES 2). (#2071, #1677) [@nathanvoglsam]
- Examples: Vulkan: Tidying up the demo/internals helpers (most engine/app should not rely
on them but it is possible you have!).
Other Changes: Other Changes:
- InputText: Fixed selection background starts rendering one frame after the cursor movement - InputText: Fixed selection background starts rendering one frame after the cursor movement
@ -49,8 +54,10 @@ Other Changes:
- Examples: OpenGL: Added a dummy GL call + comments in ImGui_ImplOpenGL3_Init() to detect uninitialized - Examples: OpenGL: Added a dummy GL call + comments in ImGui_ImplOpenGL3_Init() to detect uninitialized
GL function loaders early, and help users understand what they are missing. (#2421) GL function loaders early, and help users understand what they are missing. (#2421)
- Examples: OpenGL3: Minor tweaks + not calling glBindBuffer more than necessary in the render loop. - Examples: OpenGL3: Minor tweaks + not calling glBindBuffer more than necessary in the render loop.
- Examples: Vulkan: Fixed in-flight buffers issues when using multi-viewports. (#2461, #2348, #2378, #2097)
- Examples: Vulkan: Added missing support for 32-bit indices (#define ImDrawIdx unsigned int). - Examples: Vulkan: Added missing support for 32-bit indices (#define ImDrawIdx unsigned int).
- Examples: Vulkan: Avoid passing negative coordinates to vkCmdSetScissor, which debug validation layers do not like. - Examples: Vulkan: Avoid passing negative coordinates to vkCmdSetScissor, which debug validation layers do not like.
- Examples: Vulkan: Added ImGui_ImplVulkan_SetMinImageCount() to change min image count at runtime. (#2071) [@nathanvoglsam]
- Examples: DirectX9: Fixed erroneous assert in ImGui_ImplDX9_InvalidateDeviceObjects(). (#2454) - Examples: DirectX9: Fixed erroneous assert in ImGui_ImplDX9_InvalidateDeviceObjects(). (#2454)
- Examples: GLUT: Fixed existing FreeGLUT example to work with regular GLUT. (#2465) [@andrewwillmott] - Examples: GLUT: Fixed existing FreeGLUT example to work with regular GLUT. (#2465) [@andrewwillmott]
- Examples: GLUT: Renamed imgui_impl_freeglut.cpp/.h to imgui_impl_glut.cpp/.h. (#2465) [@andrewwillmott] - Examples: GLUT: Renamed imgui_impl_freeglut.cpp/.h to imgui_impl_glut.cpp/.h. (#2465) [@andrewwillmott]

94
examples/example_glfw_vulkan/main.cpp
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@ -1,6 +1,13 @@
// dear imgui: standalone example application for Glfw + Vulkan // dear imgui: standalone example application for Glfw + Vulkan
// If you are new to dear imgui, see examples/README.txt and documentation at the top of imgui.cpp. // If you are new to dear imgui, see examples/README.txt and documentation 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 back-end in your engine/app.
// - Helper ImGui_ImplVulkanH_XXX functions and structures are only used by this example (main.cpp) and by
// the back-end itself (imgui_impl_vulkan.cpp), but should PROBABLY NOT be used by your own engine/app code.
// Read comments in imgui_impl_vulkan.h.
#include "imgui.h" #include "imgui.h"
#include "imgui_impl_glfw.h" #include "imgui_impl_glfw.h"
#include "imgui_impl_vulkan.h" #include "imgui_impl_vulkan.h"
@ -23,19 +30,21 @@
#define IMGUI_VULKAN_DEBUG_REPORT #define IMGUI_VULKAN_DEBUG_REPORT
#endif #endif
static VkAllocationCallbacks* g_Allocator = NULL; static VkAllocationCallbacks* g_Allocator = NULL;
static VkInstance g_Instance = VK_NULL_HANDLE; static VkInstance g_Instance = VK_NULL_HANDLE;
static VkPhysicalDevice g_PhysicalDevice = VK_NULL_HANDLE; static VkPhysicalDevice g_PhysicalDevice = VK_NULL_HANDLE;
static VkDevice g_Device = VK_NULL_HANDLE; static VkDevice g_Device = VK_NULL_HANDLE;
static uint32_t g_QueueFamily = (uint32_t)-1; static uint32_t g_QueueFamily = (uint32_t)-1;
static VkQueue g_Queue = VK_NULL_HANDLE; static VkQueue g_Queue = VK_NULL_HANDLE;
static VkDebugReportCallbackEXT g_DebugReport = VK_NULL_HANDLE; static VkDebugReportCallbackEXT g_DebugReport = VK_NULL_HANDLE;
static VkPipelineCache g_PipelineCache = VK_NULL_HANDLE; static VkPipelineCache g_PipelineCache = VK_NULL_HANDLE;
static VkDescriptorPool g_DescriptorPool = VK_NULL_HANDLE; static VkDescriptorPool g_DescriptorPool = VK_NULL_HANDLE;
static ImGui_ImplVulkanH_WindowData g_WindowData; static ImGui_ImplVulkanH_Window g_MainWindowData;
static bool g_ResizeWanted = false; static int g_MinImageCount = 2;
static int g_ResizeWidth = 0, g_ResizeHeight = 0; static bool g_SwapChainRebuild = false;
static int g_SwapChainResizeWidth = 0;
static int g_SwapChainResizeHeight = 0;
static void check_vk_result(VkResult err) static void check_vk_result(VkResult err)
{ {
@ -107,6 +116,7 @@ static void SetupVulkan(const char** extensions, uint32_t extensions_count)
uint32_t gpu_count; uint32_t gpu_count;
err = vkEnumeratePhysicalDevices(g_Instance, &gpu_count, NULL); err = vkEnumeratePhysicalDevices(g_Instance, &gpu_count, NULL);
check_vk_result(err); check_vk_result(err);
IM_ASSERT(gpu_count > 0);
VkPhysicalDevice* gpus = (VkPhysicalDevice*)malloc(sizeof(VkPhysicalDevice) * gpu_count); VkPhysicalDevice* gpus = (VkPhysicalDevice*)malloc(sizeof(VkPhysicalDevice) * gpu_count);
err = vkEnumeratePhysicalDevices(g_Instance, &gpu_count, gpus); err = vkEnumeratePhysicalDevices(g_Instance, &gpu_count, gpus);
@ -183,7 +193,9 @@ static void SetupVulkan(const char** extensions, uint32_t extensions_count)
} }
} }
static void SetupVulkanWindowData(ImGui_ImplVulkanH_WindowData* wd, VkSurfaceKHR surface, int width, int height) // All the ImGui_ImplVulkanH_XXX structures/functions are optional helpers used by the demo.
// Your real engine/app may not use them.
static void SetupVulkanWindow(ImGui_ImplVulkanH_Window* wd, VkSurfaceKHR surface, int width, int height)
{ {
wd->Surface = surface; wd->Surface = surface;
@ -211,14 +223,12 @@ static void SetupVulkanWindowData(ImGui_ImplVulkanH_WindowData* wd, VkSurfaceKHR
//printf("[vulkan] Selected PresentMode = %d\n", wd->PresentMode); //printf("[vulkan] Selected PresentMode = %d\n", wd->PresentMode);
// Create SwapChain, RenderPass, Framebuffer, etc. // Create SwapChain, RenderPass, Framebuffer, etc.
ImGui_ImplVulkanH_CreateWindowDataCommandBuffers(g_PhysicalDevice, g_Device, g_QueueFamily, wd, g_Allocator); IM_ASSERT(g_MinImageCount >= 2);
ImGui_ImplVulkanH_CreateWindowDataSwapChainAndFramebuffer(g_PhysicalDevice, g_Device, wd, g_Allocator, width, height); ImGui_ImplVulkanH_CreateWindow(g_Instance, g_PhysicalDevice, g_Device, wd, g_QueueFamily, g_Allocator, width, height, g_MinImageCount);
} }
static void CleanupVulkan() static void CleanupVulkan()
{ {
ImGui_ImplVulkanH_WindowData* wd = &g_WindowData;
ImGui_ImplVulkanH_DestroyWindowData(g_Instance, g_Device, wd, g_Allocator);
vkDestroyDescriptorPool(g_Device, g_DescriptorPool, g_Allocator); vkDestroyDescriptorPool(g_Device, g_DescriptorPool, g_Allocator);
#ifdef IMGUI_VULKAN_DEBUG_REPORT #ifdef IMGUI_VULKAN_DEBUG_REPORT
@ -231,15 +241,21 @@ static void CleanupVulkan()
vkDestroyInstance(g_Instance, g_Allocator); vkDestroyInstance(g_Instance, g_Allocator);
} }
static void FrameRender(ImGui_ImplVulkanH_WindowData* wd) static void CleanupVulkanWindow()
{
ImGui_ImplVulkanH_DestroyWindow(g_Instance, g_Device, &g_MainWindowData, g_Allocator);
}
static void FrameRender(ImGui_ImplVulkanH_Window* wd)
{ {
VkResult err; VkResult err;
VkSemaphore& image_acquired_semaphore = wd->Frames[wd->FrameIndex].ImageAcquiredSemaphore; VkSemaphore image_acquired_semaphore = wd->FrameSemaphores[wd->SemaphoreIndex].ImageAcquiredSemaphore;
VkSemaphore render_complete_semaphore = wd->FrameSemaphores[wd->SemaphoreIndex].RenderCompleteSemaphore;
err = vkAcquireNextImageKHR(g_Device, wd->Swapchain, UINT64_MAX, image_acquired_semaphore, VK_NULL_HANDLE, &wd->FrameIndex); err = vkAcquireNextImageKHR(g_Device, wd->Swapchain, UINT64_MAX, image_acquired_semaphore, VK_NULL_HANDLE, &wd->FrameIndex);
check_vk_result(err); check_vk_result(err);
ImGui_ImplVulkanH_FrameData* fd = &wd->Frames[wd->FrameIndex]; ImGui_ImplVulkanH_Frame* fd = &wd->Frames[wd->FrameIndex];
{ {
err = vkWaitForFences(g_Device, 1, &fd->Fence, VK_TRUE, UINT64_MAX); // wait indefinitely instead of periodically checking err = vkWaitForFences(g_Device, 1, &fd->Fence, VK_TRUE, UINT64_MAX); // wait indefinitely instead of periodically checking
check_vk_result(err); check_vk_result(err);
@ -260,7 +276,7 @@ static void FrameRender(ImGui_ImplVulkanH_WindowData* wd)
VkRenderPassBeginInfo info = {}; VkRenderPassBeginInfo info = {};
info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO; info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
info.renderPass = wd->RenderPass; info.renderPass = wd->RenderPass;
info.framebuffer = wd->Framebuffer[wd->FrameIndex]; info.framebuffer = fd->Framebuffer;
info.renderArea.extent.width = wd->Width; info.renderArea.extent.width = wd->Width;
info.renderArea.extent.height = wd->Height; info.renderArea.extent.height = wd->Height;
info.clearValueCount = 1; info.clearValueCount = 1;
@ -283,7 +299,7 @@ static void FrameRender(ImGui_ImplVulkanH_WindowData* wd)
info.commandBufferCount = 1; info.commandBufferCount = 1;
info.pCommandBuffers = &fd->CommandBuffer; info.pCommandBuffers = &fd->CommandBuffer;
info.signalSemaphoreCount = 1; info.signalSemaphoreCount = 1;
info.pSignalSemaphores = &fd->RenderCompleteSemaphore; info.pSignalSemaphores = &render_complete_semaphore;
err = vkEndCommandBuffer(fd->CommandBuffer); err = vkEndCommandBuffer(fd->CommandBuffer);
check_vk_result(err); check_vk_result(err);
@ -292,18 +308,19 @@ static void FrameRender(ImGui_ImplVulkanH_WindowData* wd)
} }
} }
static void FramePresent(ImGui_ImplVulkanH_WindowData* wd) static void FramePresent(ImGui_ImplVulkanH_Window* wd)
{ {
ImGui_ImplVulkanH_FrameData* fd = &wd->Frames[wd->FrameIndex]; VkSemaphore render_complete_semaphore = wd->FrameSemaphores[wd->SemaphoreIndex].RenderCompleteSemaphore;
VkPresentInfoKHR info = {}; VkPresentInfoKHR info = {};
info.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR; info.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
info.waitSemaphoreCount = 1; info.waitSemaphoreCount = 1;
info.pWaitSemaphores = &fd->RenderCompleteSemaphore; info.pWaitSemaphores = &render_complete_semaphore;
info.swapchainCount = 1; info.swapchainCount = 1;
info.pSwapchains = &wd->Swapchain; info.pSwapchains = &wd->Swapchain;
info.pImageIndices = &wd->FrameIndex; info.pImageIndices = &wd->FrameIndex;
VkResult err = vkQueuePresentKHR(g_Queue, &info); VkResult err = vkQueuePresentKHR(g_Queue, &info);
check_vk_result(err); check_vk_result(err);
wd->SemaphoreIndex = (wd->SemaphoreIndex + 1) % wd->ImageCount; // Now we can use the next set of semaphores
} }
static void glfw_error_callback(int error, const char* description) static void glfw_error_callback(int error, const char* description)
@ -313,14 +330,14 @@ static void glfw_error_callback(int error, const char* description)
static void glfw_resize_callback(GLFWwindow*, int w, int h) static void glfw_resize_callback(GLFWwindow*, int w, int h)
{ {
g_ResizeWanted = true; g_SwapChainRebuild = true;
g_ResizeWidth = w; g_SwapChainResizeWidth = w;
g_ResizeHeight = h; g_SwapChainResizeHeight = h;
} }
int main(int, char**) int main(int, char**)
{ {
// Setup window // Setup GLFW window
glfwSetErrorCallback(glfw_error_callback); glfwSetErrorCallback(glfw_error_callback);
if (!glfwInit()) if (!glfwInit())
return 1; return 1;
@ -347,8 +364,8 @@ int main(int, char**)
int w, h; int w, h;
glfwGetFramebufferSize(window, &w, &h); glfwGetFramebufferSize(window, &w, &h);
glfwSetFramebufferSizeCallback(window, glfw_resize_callback); glfwSetFramebufferSizeCallback(window, glfw_resize_callback);
ImGui_ImplVulkanH_WindowData* wd = &g_WindowData; ImGui_ImplVulkanH_Window* wd = &g_MainWindowData;
SetupVulkanWindowData(wd, surface, w, h); SetupVulkanWindow(wd, surface, w, h);
// Setup Dear ImGui context // Setup Dear ImGui context
IMGUI_CHECKVERSION(); IMGUI_CHECKVERSION();
@ -372,6 +389,8 @@ int main(int, char**)
init_info.PipelineCache = g_PipelineCache; init_info.PipelineCache = g_PipelineCache;
init_info.DescriptorPool = g_DescriptorPool; init_info.DescriptorPool = g_DescriptorPool;
init_info.Allocator = g_Allocator; init_info.Allocator = g_Allocator;
init_info.MinImageCount = g_MinImageCount;
init_info.ImageCount = wd->ImageCount;
init_info.CheckVkResultFn = check_vk_result; init_info.CheckVkResultFn = check_vk_result;
ImGui_ImplVulkan_Init(&init_info, wd->RenderPass); ImGui_ImplVulkan_Init(&init_info, wd->RenderPass);
@ -417,7 +436,7 @@ int main(int, char**)
err = vkDeviceWaitIdle(g_Device); err = vkDeviceWaitIdle(g_Device);
check_vk_result(err); check_vk_result(err);
ImGui_ImplVulkan_InvalidateFontUploadObjects(); ImGui_ImplVulkan_DestroyFontUploadObjects();
} }
bool show_demo_window = true; bool show_demo_window = true;
@ -433,10 +452,13 @@ int main(int, char**)
// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application. // - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application.
// Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags. // Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
glfwPollEvents(); glfwPollEvents();
if (g_ResizeWanted)
if (g_SwapChainRebuild)
{ {
ImGui_ImplVulkanH_CreateWindowDataSwapChainAndFramebuffer(g_PhysicalDevice, g_Device, &g_WindowData, g_Allocator, g_ResizeWidth, g_ResizeHeight); g_SwapChainRebuild = false;
g_ResizeWanted = false; ImGui_ImplVulkan_SetMinImageCount(g_MinImageCount);
ImGui_ImplVulkanH_CreateWindow(g_Instance, g_PhysicalDevice, g_Device, &g_MainWindowData, g_QueueFamily, g_Allocator, g_SwapChainResizeWidth, g_SwapChainResizeHeight, g_MinImageCount);
g_MainWindowData.FrameIndex = 0;
} }
// Start the Dear ImGui frame // Start the Dear ImGui frame
@ -495,6 +517,8 @@ int main(int, char**)
ImGui_ImplVulkan_Shutdown(); ImGui_ImplVulkan_Shutdown();
ImGui_ImplGlfw_Shutdown(); ImGui_ImplGlfw_Shutdown();
ImGui::DestroyContext(); ImGui::DestroyContext();
CleanupVulkanWindow();
CleanupVulkan(); CleanupVulkan();
glfwDestroyWindow(window); glfwDestroyWindow(window);

89
examples/example_sdl_vulkan/main.cpp
View File

@ -1,6 +1,13 @@
// dear imgui: standalone example application for SDL2 + Vulkan // dear imgui: standalone example application for SDL2 + Vulkan
// If you are new to dear imgui, see examples/README.txt and documentation at the top of imgui.cpp. // If you are new to dear imgui, see examples/README.txt and documentation 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 back-end in your engine/app.
// - Helper ImGui_ImplVulkanH_XXX functions and structures are only used by this example (main.cpp) and by
// the back-end itself (imgui_impl_vulkan.cpp), but should PROBABLY NOT be used by your own engine/app code.
// Read comments in imgui_impl_vulkan.h.
#include "imgui.h" #include "imgui.h"
#include "imgui_impl_sdl.h" #include "imgui_impl_sdl.h"
#include "imgui_impl_vulkan.h" #include "imgui_impl_vulkan.h"
@ -15,17 +22,21 @@
#define IMGUI_VULKAN_DEBUG_REPORT #define IMGUI_VULKAN_DEBUG_REPORT
#endif #endif
static VkAllocationCallbacks* g_Allocator = NULL; static VkAllocationCallbacks* g_Allocator = NULL;
static VkInstance g_Instance = VK_NULL_HANDLE; static VkInstance g_Instance = VK_NULL_HANDLE;
static VkPhysicalDevice g_PhysicalDevice = VK_NULL_HANDLE; static VkPhysicalDevice g_PhysicalDevice = VK_NULL_HANDLE;
static VkDevice g_Device = VK_NULL_HANDLE; static VkDevice g_Device = VK_NULL_HANDLE;
static uint32_t g_QueueFamily = (uint32_t)-1; static uint32_t g_QueueFamily = (uint32_t)-1;
static VkQueue g_Queue = VK_NULL_HANDLE; static VkQueue g_Queue = VK_NULL_HANDLE;
static VkDebugReportCallbackEXT g_DebugReport = VK_NULL_HANDLE; static VkDebugReportCallbackEXT g_DebugReport = VK_NULL_HANDLE;
static VkPipelineCache g_PipelineCache = VK_NULL_HANDLE; static VkPipelineCache g_PipelineCache = VK_NULL_HANDLE;
static VkDescriptorPool g_DescriptorPool = VK_NULL_HANDLE; static VkDescriptorPool g_DescriptorPool = VK_NULL_HANDLE;
static ImGui_ImplVulkanH_WindowData g_WindowData; static ImGui_ImplVulkanH_Window g_MainWindowData;
static uint32_t g_MinImageCount = 2;
static bool g_SwapChainRebuild = false;
static int g_SwapChainResizeWidth = 0;
static int g_SwapChainResizeHeight = 0;
static void check_vk_result(VkResult err) static void check_vk_result(VkResult err)
{ {
@ -97,6 +108,7 @@ static void SetupVulkan(const char** extensions, uint32_t extensions_count)
uint32_t gpu_count; uint32_t gpu_count;
err = vkEnumeratePhysicalDevices(g_Instance, &gpu_count, NULL); err = vkEnumeratePhysicalDevices(g_Instance, &gpu_count, NULL);
check_vk_result(err); check_vk_result(err);
IM_ASSERT(gpu_count > 0);
VkPhysicalDevice* gpus = (VkPhysicalDevice*)malloc(sizeof(VkPhysicalDevice) * gpu_count); VkPhysicalDevice* gpus = (VkPhysicalDevice*)malloc(sizeof(VkPhysicalDevice) * gpu_count);
err = vkEnumeratePhysicalDevices(g_Instance, &gpu_count, gpus); err = vkEnumeratePhysicalDevices(g_Instance, &gpu_count, gpus);
@ -173,7 +185,9 @@ static void SetupVulkan(const char** extensions, uint32_t extensions_count)
} }
} }
static void SetupVulkanWindowData(ImGui_ImplVulkanH_WindowData* wd, VkSurfaceKHR surface, int width, int height) // All the ImGui_ImplVulkanH_XXX structures/functions are optional helpers used by the demo.
// Your real engine/app may not use them.
static void SetupVulkanWindow(ImGui_ImplVulkanH_Window* wd, VkSurfaceKHR surface, int width, int height)
{ {
wd->Surface = surface; wd->Surface = surface;
@ -201,14 +215,12 @@ static void SetupVulkanWindowData(ImGui_ImplVulkanH_WindowData* wd, VkSurfaceKHR
//printf("[vulkan] Selected PresentMode = %d\n", wd->PresentMode); //printf("[vulkan] Selected PresentMode = %d\n", wd->PresentMode);
// Create SwapChain, RenderPass, Framebuffer, etc. // Create SwapChain, RenderPass, Framebuffer, etc.
ImGui_ImplVulkanH_CreateWindowDataCommandBuffers(g_PhysicalDevice, g_Device, g_QueueFamily, wd, g_Allocator); IM_ASSERT(g_MinImageCount >= 2);
ImGui_ImplVulkanH_CreateWindowDataSwapChainAndFramebuffer(g_PhysicalDevice, g_Device, wd, g_Allocator, width, height); ImGui_ImplVulkanH_CreateWindow(g_Instance, g_PhysicalDevice, g_Device, wd, g_QueueFamily, g_Allocator, width, height, g_MinImageCount);
} }
static void CleanupVulkan() static void CleanupVulkan()
{ {
ImGui_ImplVulkanH_WindowData* wd = &g_WindowData;
ImGui_ImplVulkanH_DestroyWindowData(g_Instance, g_Device, wd, g_Allocator);
vkDestroyDescriptorPool(g_Device, g_DescriptorPool, g_Allocator); vkDestroyDescriptorPool(g_Device, g_DescriptorPool, g_Allocator);
#ifdef IMGUI_VULKAN_DEBUG_REPORT #ifdef IMGUI_VULKAN_DEBUG_REPORT
@ -221,15 +233,21 @@ static void CleanupVulkan()
vkDestroyInstance(g_Instance, g_Allocator); vkDestroyInstance(g_Instance, g_Allocator);
} }
static void FrameRender(ImGui_ImplVulkanH_WindowData* wd) static void CleanupVulkanWindow()
{
ImGui_ImplVulkanH_DestroyWindow(g_Instance, g_Device, &g_MainWindowData, g_Allocator);
}
static void FrameRender(ImGui_ImplVulkanH_Window* wd)
{ {
VkResult err; VkResult err;
VkSemaphore& image_acquired_semaphore = wd->Frames[wd->FrameIndex].ImageAcquiredSemaphore; VkSemaphore image_acquired_semaphore = wd->FrameSemaphores[wd->SemaphoreIndex].ImageAcquiredSemaphore;
VkSemaphore render_complete_semaphore = wd->FrameSemaphores[wd->SemaphoreIndex].RenderCompleteSemaphore;
err = vkAcquireNextImageKHR(g_Device, wd->Swapchain, UINT64_MAX, image_acquired_semaphore, VK_NULL_HANDLE, &wd->FrameIndex); err = vkAcquireNextImageKHR(g_Device, wd->Swapchain, UINT64_MAX, image_acquired_semaphore, VK_NULL_HANDLE, &wd->FrameIndex);
check_vk_result(err); check_vk_result(err);
ImGui_ImplVulkanH_FrameData* fd = &wd->Frames[wd->FrameIndex]; ImGui_ImplVulkanH_Frame* fd = &wd->Frames[wd->FrameIndex];
{ {
err = vkWaitForFences(g_Device, 1, &fd->Fence, VK_TRUE, UINT64_MAX); // wait indefinitely instead of periodically checking err = vkWaitForFences(g_Device, 1, &fd->Fence, VK_TRUE, UINT64_MAX); // wait indefinitely instead of periodically checking
check_vk_result(err); check_vk_result(err);
@ -250,7 +268,7 @@ static void FrameRender(ImGui_ImplVulkanH_WindowData* wd)
VkRenderPassBeginInfo info = {}; VkRenderPassBeginInfo info = {};
info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO; info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
info.renderPass = wd->RenderPass; info.renderPass = wd->RenderPass;
info.framebuffer = wd->Framebuffer[wd->FrameIndex]; info.framebuffer = fd->Framebuffer;
info.renderArea.extent.width = wd->Width; info.renderArea.extent.width = wd->Width;
info.renderArea.extent.height = wd->Height; info.renderArea.extent.height = wd->Height;
info.clearValueCount = 1; info.clearValueCount = 1;
@ -273,7 +291,7 @@ static void FrameRender(ImGui_ImplVulkanH_WindowData* wd)
info.commandBufferCount = 1; info.commandBufferCount = 1;
info.pCommandBuffers = &fd->CommandBuffer; info.pCommandBuffers = &fd->CommandBuffer;
info.signalSemaphoreCount = 1; info.signalSemaphoreCount = 1;
info.pSignalSemaphores = &fd->RenderCompleteSemaphore; info.pSignalSemaphores = &render_complete_semaphore;
err = vkEndCommandBuffer(fd->CommandBuffer); err = vkEndCommandBuffer(fd->CommandBuffer);
check_vk_result(err); check_vk_result(err);
@ -282,18 +300,19 @@ static void FrameRender(ImGui_ImplVulkanH_WindowData* wd)
} }
} }
static void FramePresent(ImGui_ImplVulkanH_WindowData* wd) static void FramePresent(ImGui_ImplVulkanH_Window* wd)
{ {
ImGui_ImplVulkanH_FrameData* fd = &wd->Frames[wd->FrameIndex]; VkSemaphore render_complete_semaphore = wd->FrameSemaphores[wd->SemaphoreIndex].RenderCompleteSemaphore;
VkPresentInfoKHR info = {}; VkPresentInfoKHR info = {};
info.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR; info.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
info.waitSemaphoreCount = 1; info.waitSemaphoreCount = 1;
info.pWaitSemaphores = &fd->RenderCompleteSemaphore; info.pWaitSemaphores = &render_complete_semaphore;
info.swapchainCount = 1; info.swapchainCount = 1;
info.pSwapchains = &wd->Swapchain; info.pSwapchains = &wd->Swapchain;
info.pImageIndices = &wd->FrameIndex; info.pImageIndices = &wd->FrameIndex;
VkResult err = vkQueuePresentKHR(g_Queue, &info); VkResult err = vkQueuePresentKHR(g_Queue, &info);
check_vk_result(err); check_vk_result(err);
wd->SemaphoreIndex = (wd->SemaphoreIndex + 1) % wd->ImageCount; // Now we can use the next set of semaphores
} }
int main(int, char**) int main(int, char**)
@ -331,8 +350,8 @@ int main(int, char**)
// Create Framebuffers // Create Framebuffers
int w, h; int w, h;
SDL_GetWindowSize(window, &w, &h); SDL_GetWindowSize(window, &w, &h);
ImGui_ImplVulkanH_WindowData* wd = &g_WindowData; ImGui_ImplVulkanH_Window* wd = &g_MainWindowData;
SetupVulkanWindowData(wd, surface, w, h); SetupVulkanWindow(wd, surface, w, h);
// Setup Dear ImGui context // Setup Dear ImGui context
ImGui::CreateContext(); ImGui::CreateContext();
@ -354,6 +373,8 @@ int main(int, char**)
init_info.PipelineCache = g_PipelineCache; init_info.PipelineCache = g_PipelineCache;
init_info.DescriptorPool = g_DescriptorPool; init_info.DescriptorPool = g_DescriptorPool;
init_info.Allocator = g_Allocator; init_info.Allocator = g_Allocator;
init_info.MinImageCount = g_MinImageCount;
init_info.ImageCount = wd->ImageCount;
init_info.CheckVkResultFn = check_vk_result; init_info.CheckVkResultFn = check_vk_result;
ImGui_ImplVulkan_Init(&init_info, wd->RenderPass); ImGui_ImplVulkan_Init(&init_info, wd->RenderPass);
@ -399,7 +420,7 @@ int main(int, char**)
err = vkDeviceWaitIdle(g_Device); err = vkDeviceWaitIdle(g_Device);
check_vk_result(err); check_vk_result(err);
ImGui_ImplVulkan_InvalidateFontUploadObjects(); ImGui_ImplVulkan_DestroyFontUploadObjects();
} }
bool show_demo_window = true; bool show_demo_window = true;
@ -422,7 +443,19 @@ int main(int, char**)
if (event.type == SDL_QUIT) if (event.type == SDL_QUIT)
done = true; done = true;
if (event.type == SDL_WINDOWEVENT && event.window.event == SDL_WINDOWEVENT_RESIZED && event.window.windowID == SDL_GetWindowID(window)) if (event.type == SDL_WINDOWEVENT && event.window.event == SDL_WINDOWEVENT_RESIZED && event.window.windowID == SDL_GetWindowID(window))
ImGui_ImplVulkanH_CreateWindowDataSwapChainAndFramebuffer(g_PhysicalDevice, g_Device, &g_WindowData, g_Allocator, (int)event.window.data1, (int)event.window.data2); {
g_SwapChainResizeWidth = (int)event.window.data1;
g_SwapChainResizeHeight = (int)event.window.data2;
g_SwapChainRebuild = true;
}
}
if (g_SwapChainRebuild)
{
g_SwapChainRebuild = false;
ImGui_ImplVulkan_SetMinImageCount(g_MinImageCount);
ImGui_ImplVulkanH_CreateWindow(g_Instance, g_PhysicalDevice, g_Device, &g_MainWindowData, g_QueueFamily, g_Allocator, g_SwapChainResizeWidth, g_SwapChainResizeHeight, g_MinImageCount);
g_MainWindowData.FrameIndex = 0;
} }
// Start the Dear ImGui frame // Start the Dear ImGui frame
@ -481,6 +514,8 @@ int main(int, char**)
ImGui_ImplVulkan_Shutdown(); ImGui_ImplVulkan_Shutdown();
ImGui_ImplSDL2_Shutdown(); ImGui_ImplSDL2_Shutdown();
ImGui::DestroyContext(); ImGui::DestroyContext();
CleanupVulkanWindow();
CleanupVulkan(); CleanupVulkan();
SDL_DestroyWindow(window); SDL_DestroyWindow(window);

448
examples/imgui_impl_vulkan.cpp
View File

@ -11,8 +11,17 @@
// The aim of imgui_impl_vulkan.h/.cpp is to be usable in your engine without any modification. // 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/ // IF YOU FEEL YOU NEED TO MAKE ANY CHANGE TO THIS CODE, please share them and your feedback at https://github.com/ocornut/imgui/
// 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 back-end in your engine/app.
// - Helper ImGui_ImplVulkanH_XXX functions and structures are only used by this example (main.cpp) and by
// the back-end 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 // CHANGELOG
// (minor and older changes stripped away, please see git history for details) // (minor and older changes stripped away, please see git history for details)
// 2019-XX-XX: *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-XX-XX: 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. // 2019-04-04: 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). // 2019-04-01: 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. // 2019-02-16: Vulkan: Viewport and clipping rectangles correctly using draw_data->FramebufferScale to allow retina display.
@ -34,46 +43,61 @@
#include "imgui_impl_vulkan.h" #include "imgui_impl_vulkan.h"
#include <stdio.h> #include <stdio.h>
// Vulkan data // Reusable buffers used for rendering 1 current in-flight frame, for ImGui_ImplVulkan_RenderDrawData()
static const VkAllocationCallbacks* g_Allocator = NULL; // [Please zero-clear before use!]
static VkPhysicalDevice g_PhysicalDevice = VK_NULL_HANDLE; struct ImGui_ImplVulkanH_FrameRenderBuffers
static VkInstance g_Instance = VK_NULL_HANDLE;
static VkDevice g_Device = VK_NULL_HANDLE;
static uint32_t g_QueueFamily = (uint32_t)-1;
static VkQueue g_Queue = VK_NULL_HANDLE;
static VkPipelineCache g_PipelineCache = VK_NULL_HANDLE;
static VkDescriptorPool g_DescriptorPool = VK_NULL_HANDLE;
static VkRenderPass g_RenderPass = VK_NULL_HANDLE;
static void (*g_CheckVkResultFn)(VkResult err) = NULL;
static VkDeviceSize g_BufferMemoryAlignment = 256;
static VkPipelineCreateFlags g_PipelineCreateFlags = 0;
static VkDescriptorSetLayout g_DescriptorSetLayout = VK_NULL_HANDLE;
static VkPipelineLayout g_PipelineLayout = VK_NULL_HANDLE;
static VkDescriptorSet g_DescriptorSet = VK_NULL_HANDLE;
static VkPipeline g_Pipeline = VK_NULL_HANDLE;
// Frame data
struct FrameDataForRender
{ {
VkDeviceMemory VertexBufferMemory; VkDeviceMemory VertexBufferMemory;
VkDeviceMemory IndexBufferMemory; VkDeviceMemory IndexBufferMemory;
VkDeviceSize VertexBufferSize; VkDeviceSize VertexBufferSize;
VkDeviceSize IndexBufferSize; VkDeviceSize IndexBufferSize;
VkBuffer VertexBuffer; VkBuffer VertexBuffer;
VkBuffer IndexBuffer; VkBuffer IndexBuffer;
}; };
static int g_FrameIndex = 0;
static FrameDataForRender g_FramesDataBuffers[IMGUI_VK_QUEUED_FRAMES] = {}; // Each viewport will hold 1 ImGui_ImplVulkanH_WindowRenderBuffers
// [Please zero-clear before use!]
struct ImGui_ImplVulkanH_WindowRenderBuffers
{
uint32_t Index;
uint32_t Count;
ImGui_ImplVulkanH_FrameRenderBuffers* FrameRenderBuffers;
};
// Vulkan data
static ImGui_ImplVulkan_InitInfo g_VulkanInitInfo = {};
static VkRenderPass g_RenderPass = VK_NULL_HANDLE;
static VkDeviceSize g_BufferMemoryAlignment = 256;
static VkPipelineCreateFlags g_PipelineCreateFlags = 0x00;
static VkDescriptorSetLayout g_DescriptorSetLayout = VK_NULL_HANDLE;
static VkPipelineLayout g_PipelineLayout = VK_NULL_HANDLE;
static VkDescriptorSet g_DescriptorSet = VK_NULL_HANDLE;
static VkPipeline g_Pipeline = VK_NULL_HANDLE;
// Font data // Font data
static VkSampler g_FontSampler = VK_NULL_HANDLE; static VkSampler g_FontSampler = VK_NULL_HANDLE;
static VkDeviceMemory g_FontMemory = VK_NULL_HANDLE; static VkDeviceMemory g_FontMemory = VK_NULL_HANDLE;
static VkImage g_FontImage = VK_NULL_HANDLE; static VkImage g_FontImage = VK_NULL_HANDLE;
static VkImageView g_FontView = VK_NULL_HANDLE; static VkImageView g_FontView = VK_NULL_HANDLE;
static VkDeviceMemory g_UploadBufferMemory = VK_NULL_HANDLE; static VkDeviceMemory g_UploadBufferMemory = VK_NULL_HANDLE;
static VkBuffer g_UploadBuffer = VK_NULL_HANDLE; static VkBuffer g_UploadBuffer = VK_NULL_HANDLE;
// Render buffers
static ImGui_ImplVulkanH_WindowRenderBuffers g_MainWindowRenderBuffers;
// Forward Declarations
bool ImGui_ImplVulkan_CreateDeviceObjects();
void ImGui_ImplVulkan_DestroyDeviceObjects();
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_DestroyFrameRenderBuffers(VkDevice device, ImGui_ImplVulkanH_FrameRenderBuffers* buffers, const VkAllocationCallbacks* allocator);
void ImGui_ImplVulkanH_DestroyWindowRenderBuffers(VkDevice device, ImGui_ImplVulkanH_WindowRenderBuffers* buffers, 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);
//-----------------------------------------------------------------------------
// SHADERS
//-----------------------------------------------------------------------------
// glsl_shader.vert, compiled with: // glsl_shader.vert, compiled with:
// # glslangValidator -V -x -o glsl_shader.vert.u32 glsl_shader.vert // # glslangValidator -V -x -o glsl_shader.vert.u32 glsl_shader.vert
@ -180,10 +204,15 @@ static uint32_t __glsl_shader_frag_spv[] =
0x00010038 0x00010038
}; };
//-----------------------------------------------------------------------------
// FUNCTIONS
//-----------------------------------------------------------------------------
static uint32_t ImGui_ImplVulkan_MemoryType(VkMemoryPropertyFlags properties, uint32_t type_bits) static uint32_t ImGui_ImplVulkan_MemoryType(VkMemoryPropertyFlags properties, uint32_t type_bits)
{ {
ImGui_ImplVulkan_InitInfo* v = &g_VulkanInitInfo;
VkPhysicalDeviceMemoryProperties prop; VkPhysicalDeviceMemoryProperties prop;
vkGetPhysicalDeviceMemoryProperties(g_PhysicalDevice, &prop); vkGetPhysicalDeviceMemoryProperties(v->PhysicalDevice, &prop);
for (uint32_t i = 0; i < prop.memoryTypeCount; i++) for (uint32_t i = 0; i < prop.memoryTypeCount; i++)
if ((prop.memoryTypes[i].propertyFlags & properties) == properties && type_bits & (1<<i)) if ((prop.memoryTypes[i].propertyFlags & properties) == properties && type_bits & (1<<i))
return i; return i;
@ -192,17 +221,19 @@ static uint32_t ImGui_ImplVulkan_MemoryType(VkMemoryPropertyFlags properties, ui
static void check_vk_result(VkResult err) static void check_vk_result(VkResult err)
{ {
if (g_CheckVkResultFn) ImGui_ImplVulkan_InitInfo* v = &g_VulkanInitInfo;
g_CheckVkResultFn(err); if (v->CheckVkResultFn)
v->CheckVkResultFn(err);
} }
static void CreateOrResizeBuffer(VkBuffer& buffer, VkDeviceMemory& buffer_memory, VkDeviceSize& p_buffer_size, size_t new_size, VkBufferUsageFlagBits usage) static void CreateOrResizeBuffer(VkBuffer& buffer, VkDeviceMemory& buffer_memory, VkDeviceSize& p_buffer_size, size_t new_size, VkBufferUsageFlagBits usage)
{ {
ImGui_ImplVulkan_InitInfo* v = &g_VulkanInitInfo;
VkResult err; VkResult err;
if (buffer != VK_NULL_HANDLE) if (buffer != VK_NULL_HANDLE)
vkDestroyBuffer(g_Device, buffer, g_Allocator); vkDestroyBuffer(v->Device, buffer, v->Allocator);
if (buffer_memory) if (buffer_memory != VK_NULL_HANDLE)
vkFreeMemory(g_Device, buffer_memory, g_Allocator); vkFreeMemory(v->Device, buffer_memory, v->Allocator);
VkDeviceSize vertex_buffer_size_aligned = ((new_size - 1) / g_BufferMemoryAlignment + 1) * g_BufferMemoryAlignment; VkDeviceSize vertex_buffer_size_aligned = ((new_size - 1) / g_BufferMemoryAlignment + 1) * g_BufferMemoryAlignment;
VkBufferCreateInfo buffer_info = {}; VkBufferCreateInfo buffer_info = {};
@ -210,20 +241,20 @@ static void CreateOrResizeBuffer(VkBuffer& buffer, VkDeviceMemory& buffer_memory
buffer_info.size = vertex_buffer_size_aligned; buffer_info.size = vertex_buffer_size_aligned;
buffer_info.usage = usage; buffer_info.usage = usage;
buffer_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE; buffer_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
err = vkCreateBuffer(g_Device, &buffer_info, g_Allocator, &buffer); err = vkCreateBuffer(v->Device, &buffer_info, v->Allocator, &buffer);
check_vk_result(err); check_vk_result(err);
VkMemoryRequirements req; VkMemoryRequirements req;
vkGetBufferMemoryRequirements(g_Device, buffer, &req); vkGetBufferMemoryRequirements(v->Device, buffer, &req);
g_BufferMemoryAlignment = (g_BufferMemoryAlignment > req.alignment) ? g_BufferMemoryAlignment : req.alignment; g_BufferMemoryAlignment = (g_BufferMemoryAlignment > req.alignment) ? g_BufferMemoryAlignment : req.alignment;
VkMemoryAllocateInfo alloc_info = {}; VkMemoryAllocateInfo alloc_info = {};
alloc_info.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO; alloc_info.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
alloc_info.allocationSize = req.size; alloc_info.allocationSize = req.size;
alloc_info.memoryTypeIndex = ImGui_ImplVulkan_MemoryType(VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, req.memoryTypeBits); alloc_info.memoryTypeIndex = ImGui_ImplVulkan_MemoryType(VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, req.memoryTypeBits);
err = vkAllocateMemory(g_Device, &alloc_info, g_Allocator, &buffer_memory); err = vkAllocateMemory(v->Device, &alloc_info, v->Allocator, &buffer_memory);
check_vk_result(err); check_vk_result(err);
err = vkBindBufferMemory(g_Device, buffer, buffer_memory, 0); err = vkBindBufferMemory(v->Device, buffer, buffer_memory, 0);
check_vk_result(err); check_vk_result(err);
p_buffer_size = new_size; p_buffer_size = new_size;
} }
@ -238,25 +269,38 @@ void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer comm
if (fb_width <= 0 || fb_height <= 0 || draw_data->TotalVtxCount == 0) if (fb_width <= 0 || fb_height <= 0 || draw_data->TotalVtxCount == 0)
return; return;
VkResult err; ImGui_ImplVulkan_InitInfo* v = &g_VulkanInitInfo;
FrameDataForRender* fd = &g_FramesDataBuffers[g_FrameIndex];
g_FrameIndex = (g_FrameIndex + 1) % IM_ARRAYSIZE(g_FramesDataBuffers);
// Create the Vertex and Index buffers: // Allocate array to store enough vertex/index buffers
ImGui_ImplVulkanH_WindowRenderBuffers* wrb = &g_MainWindowRenderBuffers;
if (wrb->FrameRenderBuffers == NULL)
{
wrb->Index = 0;
wrb->Count = v->ImageCount;
wrb->FrameRenderBuffers = (ImGui_ImplVulkanH_FrameRenderBuffers*)IM_ALLOC(sizeof(ImGui_ImplVulkanH_FrameRenderBuffers) * wrb->Count);
memset(wrb->FrameRenderBuffers, 0, sizeof(ImGui_ImplVulkanH_FrameRenderBuffers) * wrb->Count);
}
IM_ASSERT(wrb->Count == v->ImageCount);
wrb->Index = (wrb->Index + 1) % wrb->Count;
ImGui_ImplVulkanH_FrameRenderBuffers* rb = &wrb->FrameRenderBuffers[wrb->Index];
VkResult err;
// Create or resize the vertex/index buffers
size_t vertex_size = draw_data->TotalVtxCount * sizeof(ImDrawVert); size_t vertex_size = draw_data->TotalVtxCount * sizeof(ImDrawVert);
size_t index_size = draw_data->TotalIdxCount * sizeof(ImDrawIdx); size_t index_size = draw_data->TotalIdxCount * sizeof(ImDrawIdx);
if (fd->VertexBuffer == VK_NULL_HANDLE || fd->VertexBufferSize < vertex_size) if (rb->VertexBuffer == VK_NULL_HANDLE || rb->VertexBufferSize < vertex_size)
CreateOrResizeBuffer(fd->VertexBuffer, fd->VertexBufferMemory, fd->VertexBufferSize, vertex_size, VK_BUFFER_USAGE_VERTEX_BUFFER_BIT); CreateOrResizeBuffer(rb->VertexBuffer, rb->VertexBufferMemory, rb->VertexBufferSize, vertex_size, VK_BUFFER_USAGE_VERTEX_BUFFER_BIT);
if (fd->IndexBuffer == VK_NULL_HANDLE || fd->IndexBufferSize < index_size) if (rb->IndexBuffer == VK_NULL_HANDLE || rb->IndexBufferSize < index_size)
CreateOrResizeBuffer(fd->IndexBuffer, fd->IndexBufferMemory, fd->IndexBufferSize, index_size, VK_BUFFER_USAGE_INDEX_BUFFER_BIT); 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 // Upload vertex/index data into a single contiguous GPU buffer
{ {
ImDrawVert* vtx_dst = NULL; ImDrawVert* vtx_dst = NULL;
ImDrawIdx* idx_dst = NULL; ImDrawIdx* idx_dst = NULL;
err = vkMapMemory(g_Device, fd->VertexBufferMemory, 0, vertex_size, 0, (void**)(&vtx_dst)); err = vkMapMemory(v->Device, rb->VertexBufferMemory, 0, vertex_size, 0, (void**)(&vtx_dst));
check_vk_result(err); check_vk_result(err);
err = vkMapMemory(g_Device, fd->IndexBufferMemory, 0, index_size, 0, (void**)(&idx_dst)); err = vkMapMemory(v->Device, rb->IndexBufferMemory, 0, index_size, 0, (void**)(&idx_dst));
check_vk_result(err); check_vk_result(err);
for (int n = 0; n < draw_data->CmdListsCount; n++) for (int n = 0; n < draw_data->CmdListsCount; n++)
{ {
@ -268,15 +312,15 @@ void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer comm
} }
VkMappedMemoryRange range[2] = {}; VkMappedMemoryRange range[2] = {};
range[0].sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE; range[0].sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE;
range[0].memory = fd->VertexBufferMemory; range[0].memory = rb->VertexBufferMemory;
range[0].size = VK_WHOLE_SIZE; range[0].size = VK_WHOLE_SIZE;
range[1].sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE; range[1].sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE;
range[1].memory = fd->IndexBufferMemory; range[1].memory = rb->IndexBufferMemory;
range[1].size = VK_WHOLE_SIZE; range[1].size = VK_WHOLE_SIZE;
err = vkFlushMappedMemoryRanges(g_Device, 2, range); err = vkFlushMappedMemoryRanges(v->Device, 2, range);
check_vk_result(err); check_vk_result(err);
vkUnmapMemory(g_Device, fd->VertexBufferMemory); vkUnmapMemory(v->Device, rb->VertexBufferMemory);
vkUnmapMemory(g_Device, fd->IndexBufferMemory); vkUnmapMemory(v->Device, rb->IndexBufferMemory);
} }
// Bind pipeline and descriptor sets: // Bind pipeline and descriptor sets:
@ -288,10 +332,10 @@ void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer comm
// Bind Vertex And Index Buffer: // Bind Vertex And Index Buffer:
{ {
VkBuffer vertex_buffers[1] = { fd->VertexBuffer }; VkBuffer vertex_buffers[1] = { rb->VertexBuffer };
VkDeviceSize vertex_offset[1] = { 0 }; VkDeviceSize vertex_offset[1] = { 0 };
vkCmdBindVertexBuffers(command_buffer, 0, 1, vertex_buffers, vertex_offset); vkCmdBindVertexBuffers(command_buffer, 0, 1, vertex_buffers, vertex_offset);
vkCmdBindIndexBuffer(command_buffer, fd->IndexBuffer, 0, sizeof(ImDrawIdx) == 2 ? VK_INDEX_TYPE_UINT16 : VK_INDEX_TYPE_UINT32); vkCmdBindIndexBuffer(command_buffer, rb->IndexBuffer, 0, sizeof(ImDrawIdx) == 2 ? VK_INDEX_TYPE_UINT16 : VK_INDEX_TYPE_UINT32);
} }
// Setup viewport: // Setup viewport:
@ -374,6 +418,7 @@ void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer comm
bool ImGui_ImplVulkan_CreateFontsTexture(VkCommandBuffer command_buffer) bool ImGui_ImplVulkan_CreateFontsTexture(VkCommandBuffer command_buffer)
{ {
ImGui_ImplVulkan_InitInfo* v = &g_VulkanInitInfo;
ImGuiIO& io = ImGui::GetIO(); ImGuiIO& io = ImGui::GetIO();
unsigned char* pixels; unsigned char* pixels;
@ -399,17 +444,17 @@ bool ImGui_ImplVulkan_CreateFontsTexture(VkCommandBuffer command_buffer)
info.usage = VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT; info.usage = VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT;
info.sharingMode = VK_SHARING_MODE_EXCLUSIVE; info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
info.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED; info.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
err = vkCreateImage(g_Device, &info, g_Allocator, &g_FontImage); err = vkCreateImage(v->Device, &info, v->Allocator, &g_FontImage);
check_vk_result(err); check_vk_result(err);
VkMemoryRequirements req; VkMemoryRequirements req;
vkGetImageMemoryRequirements(g_Device, g_FontImage, &req); vkGetImageMemoryRequirements(v->Device, g_FontImage, &req);
VkMemoryAllocateInfo alloc_info = {}; VkMemoryAllocateInfo alloc_info = {};
alloc_info.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO; alloc_info.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
alloc_info.allocationSize = req.size; alloc_info.allocationSize = req.size;
alloc_info.memoryTypeIndex = ImGui_ImplVulkan_MemoryType(VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, req.memoryTypeBits); alloc_info.memoryTypeIndex = ImGui_ImplVulkan_MemoryType(VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, req.memoryTypeBits);
err = vkAllocateMemory(g_Device, &alloc_info, g_Allocator, &g_FontMemory); err = vkAllocateMemory(v->Device, &alloc_info, v->Allocator, &g_FontMemory);
check_vk_result(err); check_vk_result(err);
err = vkBindImageMemory(g_Device, g_FontImage, g_FontMemory, 0); err = vkBindImageMemory(v->Device, g_FontImage, g_FontMemory, 0);
check_vk_result(err); check_vk_result(err);
} }
@ -423,7 +468,7 @@ bool ImGui_ImplVulkan_CreateFontsTexture(VkCommandBuffer command_buffer)
info.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT; info.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
info.subresourceRange.levelCount = 1; info.subresourceRange.levelCount = 1;
info.subresourceRange.layerCount = 1; info.subresourceRange.layerCount = 1;
err = vkCreateImageView(g_Device, &info, g_Allocator, &g_FontView); err = vkCreateImageView(v->Device, &info, v->Allocator, &g_FontView);
check_vk_result(err); check_vk_result(err);
} }
@ -439,7 +484,7 @@ bool ImGui_ImplVulkan_CreateFontsTexture(VkCommandBuffer command_buffer)
write_desc[0].descriptorCount = 1; write_desc[0].descriptorCount = 1;
write_desc[0].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER; write_desc[0].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
write_desc[0].pImageInfo = desc_image; write_desc[0].pImageInfo = desc_image;
vkUpdateDescriptorSets(g_Device, 1, write_desc, 0, NULL); vkUpdateDescriptorSets(v->Device, 1, write_desc, 0, NULL);
} }
// Create the Upload Buffer: // Create the Upload Buffer:
@ -449,34 +494,34 @@ bool ImGui_ImplVulkan_CreateFontsTexture(VkCommandBuffer command_buffer)
buffer_info.size = upload_size; buffer_info.size = upload_size;
buffer_info.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT; buffer_info.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
buffer_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE; buffer_info.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
err = vkCreateBuffer(g_Device, &buffer_info, g_Allocator, &g_UploadBuffer); err = vkCreateBuffer(v->Device, &buffer_info, v->Allocator, &g_UploadBuffer);
check_vk_result(err); check_vk_result(err);
VkMemoryRequirements req; VkMemoryRequirements req;
vkGetBufferMemoryRequirements(g_Device, g_UploadBuffer, &req); vkGetBufferMemoryRequirements(v->Device, g_UploadBuffer, &req);
g_BufferMemoryAlignment = (g_BufferMemoryAlignment > req.alignment) ? g_BufferMemoryAlignment : req.alignment; g_BufferMemoryAlignment = (g_BufferMemoryAlignment > req.alignment) ? g_BufferMemoryAlignment : req.alignment;
VkMemoryAllocateInfo alloc_info = {}; VkMemoryAllocateInfo alloc_info = {};
alloc_info.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO; alloc_info.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
alloc_info.allocationSize = req.size; alloc_info.allocationSize = req.size;
alloc_info.memoryTypeIndex = ImGui_ImplVulkan_MemoryType(VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, req.memoryTypeBits); alloc_info.memoryTypeIndex = ImGui_ImplVulkan_MemoryType(VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, req.memoryTypeBits);
err = vkAllocateMemory(g_Device, &alloc_info, g_Allocator, &g_UploadBufferMemory); err = vkAllocateMemory(v->Device, &alloc_info, v->Allocator, &g_UploadBufferMemory);
check_vk_result(err); check_vk_result(err);
err = vkBindBufferMemory(g_Device, g_UploadBuffer, g_UploadBufferMemory, 0); err = vkBindBufferMemory(v->Device, g_UploadBuffer, g_UploadBufferMemory, 0);
check_vk_result(err); check_vk_result(err);
} }
// Upload to Buffer: // Upload to Buffer:
{ {
char* map = NULL; char* map = NULL;
err = vkMapMemory(g_Device, g_UploadBufferMemory, 0, upload_size, 0, (void**)(&map)); err = vkMapMemory(v->Device, g_UploadBufferMemory, 0, upload_size, 0, (void**)(&map));
check_vk_result(err); check_vk_result(err);
memcpy(map, pixels, upload_size); memcpy(map, pixels, upload_size);
VkMappedMemoryRange range[1] = {}; VkMappedMemoryRange range[1] = {};
range[0].sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE; range[0].sType = VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE;
range[0].memory = g_UploadBufferMemory; range[0].memory = g_UploadBufferMemory;
range[0].size = upload_size; range[0].size = upload_size;
err = vkFlushMappedMemoryRanges(g_Device, 1, range); err = vkFlushMappedMemoryRanges(v->Device, 1, range);
check_vk_result(err); check_vk_result(err);
vkUnmapMemory(g_Device, g_UploadBufferMemory); vkUnmapMemory(v->Device, g_UploadBufferMemory);
} }
// Copy to Image: // Copy to Image:
@ -525,6 +570,7 @@ bool ImGui_ImplVulkan_CreateFontsTexture(VkCommandBuffer command_buffer)
bool ImGui_ImplVulkan_CreateDeviceObjects() bool ImGui_ImplVulkan_CreateDeviceObjects()
{ {
ImGui_ImplVulkan_InitInfo* v = &g_VulkanInitInfo;
VkResult err; VkResult err;
VkShaderModule vert_module; VkShaderModule vert_module;
VkShaderModule frag_module; VkShaderModule frag_module;
@ -535,13 +581,13 @@ bool ImGui_ImplVulkan_CreateDeviceObjects()
vert_info.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO; vert_info.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
vert_info.codeSize = sizeof(__glsl_shader_vert_spv); vert_info.codeSize = sizeof(__glsl_shader_vert_spv);
vert_info.pCode = (uint32_t*)__glsl_shader_vert_spv; vert_info.pCode = (uint32_t*)__glsl_shader_vert_spv;
err = vkCreateShaderModule(g_Device, &vert_info, g_Allocator, &vert_module); err = vkCreateShaderModule(v->Device, &vert_info, v->Allocator, &vert_module);
check_vk_result(err); check_vk_result(err);
VkShaderModuleCreateInfo frag_info = {}; VkShaderModuleCreateInfo frag_info = {};
frag_info.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO; frag_info.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
frag_info.codeSize = sizeof(__glsl_shader_frag_spv); frag_info.codeSize = sizeof(__glsl_shader_frag_spv);
frag_info.pCode = (uint32_t*)__glsl_shader_frag_spv; frag_info.pCode = (uint32_t*)__glsl_shader_frag_spv;
err = vkCreateShaderModule(g_Device, &frag_info, g_Allocator, &frag_module); err = vkCreateShaderModule(v->Device, &frag_info, v->Allocator, &frag_module);
check_vk_result(err); check_vk_result(err);
} }
@ -558,7 +604,7 @@ bool ImGui_ImplVulkan_CreateDeviceObjects()
info.minLod = -1000; info.minLod = -1000;
info.maxLod = 1000; info.maxLod = 1000;
info.maxAnisotropy = 1.0f; info.maxAnisotropy = 1.0f;
err = vkCreateSampler(g_Device, &info, g_Allocator, &g_FontSampler); err = vkCreateSampler(v->Device, &info, v->Allocator, &g_FontSampler);
check_vk_result(err); check_vk_result(err);
} }
@ -574,7 +620,7 @@ bool ImGui_ImplVulkan_CreateDeviceObjects()
info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO; info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
info.bindingCount = 1; info.bindingCount = 1;
info.pBindings = binding; info.pBindings = binding;
err = vkCreateDescriptorSetLayout(g_Device, &info, g_Allocator, &g_DescriptorSetLayout); err = vkCreateDescriptorSetLayout(v->Device, &info, v->Allocator, &g_DescriptorSetLayout);
check_vk_result(err); check_vk_result(err);
} }
@ -582,10 +628,10 @@ bool ImGui_ImplVulkan_CreateDeviceObjects()
{ {
VkDescriptorSetAllocateInfo alloc_info = {}; VkDescriptorSetAllocateInfo alloc_info = {};
alloc_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO; alloc_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
alloc_info.descriptorPool = g_DescriptorPool; alloc_info.descriptorPool = v->DescriptorPool;
alloc_info.descriptorSetCount = 1; alloc_info.descriptorSetCount = 1;
alloc_info.pSetLayouts = &g_DescriptorSetLayout; alloc_info.pSetLayouts = &g_DescriptorSetLayout;
err = vkAllocateDescriptorSets(g_Device, &alloc_info, &g_DescriptorSet); err = vkAllocateDescriptorSets(v->Device, &alloc_info, &g_DescriptorSet);
check_vk_result(err); check_vk_result(err);
} }
@ -603,7 +649,7 @@ bool ImGui_ImplVulkan_CreateDeviceObjects()
layout_info.pSetLayouts = set_layout; layout_info.pSetLayouts = set_layout;
layout_info.pushConstantRangeCount = 1; layout_info.pushConstantRangeCount = 1;
layout_info.pPushConstantRanges = push_constants; layout_info.pPushConstantRanges = push_constants;
err = vkCreatePipelineLayout(g_Device, &layout_info, g_Allocator, &g_PipelineLayout); err = vkCreatePipelineLayout(v->Device, &layout_info, v->Allocator, &g_PipelineLayout);
check_vk_result(err); check_vk_result(err);
} }
@ -701,49 +747,43 @@ bool ImGui_ImplVulkan_CreateDeviceObjects()
info.pDynamicState = &dynamic_state; info.pDynamicState = &dynamic_state;
info.layout = g_PipelineLayout; info.layout = g_PipelineLayout;
info.renderPass = g_RenderPass; info.renderPass = g_RenderPass;
err = vkCreateGraphicsPipelines(g_Device, g_PipelineCache, 1, &info, g_Allocator, &g_Pipeline); err = vkCreateGraphicsPipelines(v->Device, v->PipelineCache, 1, &info, v->Allocator, &g_Pipeline);
check_vk_result(err); check_vk_result(err);
vkDestroyShaderModule(g_Device, vert_module, g_Allocator); vkDestroyShaderModule(v->Device, vert_module, v->Allocator);
vkDestroyShaderModule(g_Device, frag_module, g_Allocator); vkDestroyShaderModule(v->Device, frag_module, v->Allocator);
return true; return true;
} }
void ImGui_ImplVulkan_InvalidateFontUploadObjects() void ImGui_ImplVulkan_DestroyFontUploadObjects()
{ {
ImGui_ImplVulkan_InitInfo* v = &g_VulkanInitInfo;
if (g_UploadBuffer) if (g_UploadBuffer)
{ {
vkDestroyBuffer(g_Device, g_UploadBuffer, g_Allocator); vkDestroyBuffer(v->Device, g_UploadBuffer, v->Allocator);
g_UploadBuffer = VK_NULL_HANDLE; g_UploadBuffer = VK_NULL_HANDLE;
} }
if (g_UploadBufferMemory) if (g_UploadBufferMemory)
{ {
vkFreeMemory(g_Device, g_UploadBufferMemory, g_Allocator); vkFreeMemory(v->Device, g_UploadBufferMemory, v->Allocator);
g_UploadBufferMemory = VK_NULL_HANDLE; g_UploadBufferMemory = VK_NULL_HANDLE;
} }
} }
void ImGui_ImplVulkan_InvalidateDeviceObjects() void ImGui_ImplVulkan_DestroyDeviceObjects()
{ {
ImGui_ImplVulkan_InvalidateFontUploadObjects(); ImGui_ImplVulkan_InitInfo* v = &g_VulkanInitInfo;
ImGui_ImplVulkanH_DestroyWindowRenderBuffers(v->Device, &g_MainWindowRenderBuffers, v->Allocator);
ImGui_ImplVulkan_DestroyFontUploadObjects();
for (int i = 0; i < IM_ARRAYSIZE(g_FramesDataBuffers); i++) if (g_FontView) { vkDestroyImageView(v->Device, g_FontView, v->Allocator); g_FontView = VK_NULL_HANDLE; }
{ if (g_FontImage) { vkDestroyImage(v->Device, g_FontImage, v->Allocator); g_FontImage = VK_NULL_HANDLE; }
FrameDataForRender* fd = &g_FramesDataBuffers[i]; if (g_FontMemory) { vkFreeMemory(v->Device, g_FontMemory, v->Allocator); g_FontMemory = VK_NULL_HANDLE; }
if (fd->VertexBuffer) { vkDestroyBuffer (g_Device, fd->VertexBuffer, g_Allocator); fd->VertexBuffer = VK_NULL_HANDLE; } if (g_FontSampler) { vkDestroySampler(v->Device, g_FontSampler, v->Allocator); g_FontSampler = VK_NULL_HANDLE; }
if (fd->VertexBufferMemory) { vkFreeMemory (g_Device, fd->VertexBufferMemory, g_Allocator); fd->VertexBufferMemory = VK_NULL_HANDLE; } if (g_DescriptorSetLayout) { vkDestroyDescriptorSetLayout(v->Device, g_DescriptorSetLayout, v->Allocator); g_DescriptorSetLayout = VK_NULL_HANDLE; }
if (fd->IndexBuffer) { vkDestroyBuffer (g_Device, fd->IndexBuffer, g_Allocator); fd->IndexBuffer = VK_NULL_HANDLE; } if (g_PipelineLayout) { vkDestroyPipelineLayout(v->Device, g_PipelineLayout, v->Allocator); g_PipelineLayout = VK_NULL_HANDLE; }
if (fd->IndexBufferMemory) { vkFreeMemory (g_Device, fd->IndexBufferMemory, g_Allocator); fd->IndexBufferMemory = VK_NULL_HANDLE; } if (g_Pipeline) { vkDestroyPipeline(v->Device, g_Pipeline, v->Allocator); g_Pipeline = VK_NULL_HANDLE; }
}
if (g_FontView) { vkDestroyImageView(g_Device, g_FontView, g_Allocator); g_FontView = VK_NULL_HANDLE; }
if (g_FontImage) { vkDestroyImage(g_Device, g_FontImage, g_Allocator); g_FontImage = VK_NULL_HANDLE; }
if (g_FontMemory) { vkFreeMemory(g_Device, g_FontMemory, g_Allocator); g_FontMemory = VK_NULL_HANDLE; }
if (g_FontSampler) { vkDestroySampler(g_Device, g_FontSampler, g_Allocator); g_FontSampler = VK_NULL_HANDLE; }
if (g_DescriptorSetLayout) { vkDestroyDescriptorSetLayout(g_Device, g_DescriptorSetLayout, g_Allocator); g_DescriptorSetLayout = VK_NULL_HANDLE; }
if (g_PipelineLayout) { vkDestroyPipelineLayout(g_Device, g_PipelineLayout, g_Allocator); g_PipelineLayout = VK_NULL_HANDLE; }
if (g_Pipeline) { vkDestroyPipeline(g_Device, g_Pipeline, g_Allocator); g_Pipeline = VK_NULL_HANDLE; }
} }
bool ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo* info, VkRenderPass render_pass) bool ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo* info, VkRenderPass render_pass)
@ -756,19 +796,12 @@ bool ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo* info, VkRenderPass rend
IM_ASSERT(info->Device != VK_NULL_HANDLE); IM_ASSERT(info->Device != VK_NULL_HANDLE);
IM_ASSERT(info->Queue != VK_NULL_HANDLE); IM_ASSERT(info->Queue != VK_NULL_HANDLE);
IM_ASSERT(info->DescriptorPool != VK_NULL_HANDLE); IM_ASSERT(info->DescriptorPool != VK_NULL_HANDLE);
IM_ASSERT(info->MinImageCount >= 2);
IM_ASSERT(info->ImageCount >= info->MinImageCount);
IM_ASSERT(render_pass != VK_NULL_HANDLE); IM_ASSERT(render_pass != VK_NULL_HANDLE);
g_Instance = info->Instance; g_VulkanInitInfo = *info;
g_PhysicalDevice = info->PhysicalDevice;
g_Device = info->Device;
g_QueueFamily = info->QueueFamily;
g_Queue = info->Queue;
g_RenderPass = render_pass; g_RenderPass = render_pass;
g_PipelineCache = info->PipelineCache;
g_DescriptorPool = info->DescriptorPool;
g_Allocator = info->Allocator;
g_CheckVkResultFn = info->CheckVkResultFn;
ImGui_ImplVulkan_CreateDeviceObjects(); ImGui_ImplVulkan_CreateDeviceObjects();
return true; return true;
@ -776,16 +809,30 @@ bool ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo* info, VkRenderPass rend
void ImGui_ImplVulkan_Shutdown() void ImGui_ImplVulkan_Shutdown()
{ {
ImGui_ImplVulkan_InvalidateDeviceObjects(); ImGui_ImplVulkan_DestroyDeviceObjects();
} }
void ImGui_ImplVulkan_NewFrame() void ImGui_ImplVulkan_NewFrame()
{ {
} }
void ImGui_ImplVulkan_SetMinImageCount(uint32_t min_image_count)
{
IM_ASSERT(min_image_count >= 2);
if (g_VulkanInitInfo.MinImageCount == min_image_count)
return;
ImGui_ImplVulkan_InitInfo* v = &g_VulkanInitInfo;
VkResult err = vkDeviceWaitIdle(v->Device);
check_vk_result(err);
ImGui_ImplVulkanH_DestroyWindowRenderBuffers(v->Device, &g_MainWindowRenderBuffers, v->Allocator);
g_VulkanInitInfo.MinImageCount = min_image_count;
}
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
// Internal / Miscellaneous Vulkan Helpers // 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. // You probably do NOT need to use or care about those functions.
// Those functions only exist because: // Those functions only exist because:
@ -793,40 +840,12 @@ void ImGui_ImplVulkan_NewFrame()
// 2) the upcoming multi-viewport feature will need them internally. // 2) the upcoming multi-viewport feature will need them internally.
// Generally we avoid exposing any kind of superfluous high-level helpers in the bindings, // Generally we avoid exposing any kind of superfluous high-level helpers in the bindings,
// but it is too much code to duplicate everywhere so we exceptionally expose them. // but it is too much code to duplicate everywhere so we exceptionally expose them.
// Your application/engine will likely already have code to setup all that stuff (swap chain, render pass, frame buffers, etc.). //
// 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. // You may read this code to learn about Vulkan, but it is recommended you use you own custom tailored code to do equivalent work.
// (those functions do not interact with any of the state used by the regular ImGui_ImplVulkan_XXX functions) // (The ImGui_ImplVulkanH_XXX functions do not interact with any of the state used by the regular ImGui_ImplVulkan_XXX functions)
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
#include <stdlib.h> // malloc
ImGui_ImplVulkanH_FrameData::ImGui_ImplVulkanH_FrameData()
{
BackbufferIndex = 0;
CommandPool = VK_NULL_HANDLE;
CommandBuffer = VK_NULL_HANDLE;
Fence = VK_NULL_HANDLE;
ImageAcquiredSemaphore = VK_NULL_HANDLE;
RenderCompleteSemaphore = VK_NULL_HANDLE;
}
ImGui_ImplVulkanH_WindowData::ImGui_ImplVulkanH_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;
ClearEnable = true;
memset(&ClearValue, 0, sizeof(ClearValue));
BackBufferCount = 0;
memset(&BackBuffer, 0, sizeof(BackBuffer));
memset(&BackBufferView, 0, sizeof(BackBufferView));
memset(&Framebuffer, 0, sizeof(Framebuffer));
FrameIndex = 0;
}
VkSurfaceFormatKHR ImGui_ImplVulkanH_SelectSurfaceFormat(VkPhysicalDevice physical_device, VkSurfaceKHR surface, const VkFormat* request_formats, int request_formats_count, VkColorSpaceKHR request_color_space) VkSurfaceFormatKHR ImGui_ImplVulkanH_SelectSurfaceFormat(VkPhysicalDevice physical_device, VkSurfaceKHR surface, const VkFormat* request_formats, int request_formats_count, VkColorSpaceKHR request_color_space)
{ {
IM_ASSERT(request_formats != NULL); IM_ASSERT(request_formats != NULL);
@ -893,7 +912,7 @@ VkPresentModeKHR ImGui_ImplVulkanH_SelectPresentMode(VkPhysicalDevice physical_d
return VK_PRESENT_MODE_FIFO_KHR; // Always available return VK_PRESENT_MODE_FIFO_KHR; // Always available
} }
void ImGui_ImplVulkanH_CreateWindowDataCommandBuffers(VkPhysicalDevice physical_device, VkDevice device, uint32_t queue_family, ImGui_ImplVulkanH_WindowData* wd, const VkAllocationCallbacks* allocator) 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_ASSERT(physical_device != VK_NULL_HANDLE && device != VK_NULL_HANDLE);
(void)physical_device; (void)physical_device;
@ -901,9 +920,10 @@ void ImGui_ImplVulkanH_CreateWindowDataCommandBuffers(VkPhysicalDevice physical_
// Create Command Buffers // Create Command Buffers
VkResult err; VkResult err;
for (int i = 0; i < IM_ARRAYSIZE(wd->Frames); i++) for (uint32_t i = 0; i < wd->ImageCount; i++)
{ {
ImGui_ImplVulkanH_FrameData* fd = &wd->Frames[i]; ImGui_ImplVulkanH_Frame* fd = &wd->Frames[i];
ImGui_ImplVulkanH_FrameSemaphores* fsd = &wd->FrameSemaphores[i];
{ {
VkCommandPoolCreateInfo info = {}; VkCommandPoolCreateInfo info = {};
info.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO; info.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
@ -931,9 +951,9 @@ void ImGui_ImplVulkanH_CreateWindowDataCommandBuffers(VkPhysicalDevice physical_
{ {
VkSemaphoreCreateInfo info = {}; VkSemaphoreCreateInfo info = {};
info.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO; info.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
err = vkCreateSemaphore(device, &info, allocator, &fd->ImageAcquiredSemaphore); err = vkCreateSemaphore(device, &info, allocator, &fsd->ImageAcquiredSemaphore);
check_vk_result(err); check_vk_result(err);
err = vkCreateSemaphore(device, &info, allocator, &fd->RenderCompleteSemaphore); err = vkCreateSemaphore(device, &info, allocator, &fsd->RenderCompleteSemaphore);
check_vk_result(err); check_vk_result(err);
} }
} }
@ -951,24 +971,26 @@ int ImGui_ImplVulkanH_GetMinImageCountFromPresentMode(VkPresentModeKHR present_m
return 1; return 1;
} }
void ImGui_ImplVulkanH_CreateWindowDataSwapChainAndFramebuffer(VkPhysicalDevice physical_device, VkDevice device, ImGui_ImplVulkanH_WindowData* wd, const VkAllocationCallbacks* allocator, int w, int h) // 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)
{ {
uint32_t min_image_count = 2; // FIXME: this should become a function parameter
VkResult err; VkResult err;
VkSwapchainKHR old_swapchain = wd->Swapchain; VkSwapchainKHR old_swapchain = wd->Swapchain;
err = vkDeviceWaitIdle(device); err = vkDeviceWaitIdle(device);
check_vk_result(err); 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 // Destroy old Framebuffer
for (uint32_t i = 0; i < wd->BackBufferCount; i++) for (uint32_t i = 0; i < wd->ImageCount; i++)
{ {
if (wd->BackBufferView[i]) ImGui_ImplVulkanH_DestroyFrame(device, &wd->Frames[i], allocator);
vkDestroyImageView(device, wd->BackBufferView[i], allocator); ImGui_ImplVulkanH_DestroyFrameSemaphores(device, &wd->FrameSemaphores[i], allocator);
if (wd->Framebuffer[i])
vkDestroyFramebuffer(device, wd->Framebuffer[i], allocator);
} }
wd->BackBufferCount = 0; IM_FREE(wd->Frames);
IM_FREE(wd->FrameSemaphores);
wd->Frames = NULL;
wd->FrameSemaphores = NULL;
wd->ImageCount = 0;
if (wd->RenderPass) if (wd->RenderPass)
vkDestroyRenderPass(device, wd->RenderPass, allocator); vkDestroyRenderPass(device, wd->RenderPass, allocator);
@ -1012,10 +1034,21 @@ void ImGui_ImplVulkanH_CreateWindowDataSwapChainAndFramebuffer(VkPhysicalDevice
} }
err = vkCreateSwapchainKHR(device, &info, allocator, &wd->Swapchain); err = vkCreateSwapchainKHR(device, &info, allocator, &wd->Swapchain);
check_vk_result(err); check_vk_result(err);
err = vkGetSwapchainImagesKHR(device, wd->Swapchain, &wd->BackBufferCount, NULL); err = vkGetSwapchainImagesKHR(device, wd->Swapchain, &wd->ImageCount, NULL);
check_vk_result(err); check_vk_result(err);
err = vkGetSwapchainImagesKHR(device, wd->Swapchain, &wd->BackBufferCount, wd->BackBuffer); 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); check_vk_result(err);
IM_ASSERT(wd->Frames == NULL);
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->ImageCount);
memset(wd->Frames, 0, sizeof(wd->Frames[0]) * wd->ImageCount);
memset(wd->FrameSemaphores, 0, sizeof(wd->FrameSemaphores[0]) * wd->ImageCount);
for (uint32_t i = 0; i < wd->ImageCount; i++)
wd->Frames[i].Backbuffer = backbuffers[i];
} }
if (old_swapchain) if (old_swapchain)
vkDestroySwapchainKHR(device, old_swapchain, allocator); vkDestroySwapchainKHR(device, old_swapchain, allocator);
@ -1069,10 +1102,11 @@ void ImGui_ImplVulkanH_CreateWindowDataSwapChainAndFramebuffer(VkPhysicalDevice
info.components.a = VK_COMPONENT_SWIZZLE_A; info.components.a = VK_COMPONENT_SWIZZLE_A;
VkImageSubresourceRange image_range = { VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 }; VkImageSubresourceRange image_range = { VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 };
info.subresourceRange = image_range; info.subresourceRange = image_range;
for (uint32_t i = 0; i < wd->BackBufferCount; i++) for (uint32_t i = 0; i < wd->ImageCount; i++)
{ {
info.image = wd->BackBuffer[i]; ImGui_ImplVulkanH_Frame* fd = &wd->Frames[i];
err = vkCreateImageView(device, &info, allocator, &wd->BackBufferView[i]); info.image = fd->Backbuffer;
err = vkCreateImageView(device, &info, allocator, &fd->BackbufferView);
check_vk_result(err); check_vk_result(err);
} }
} }
@ -1088,36 +1122,80 @@ void ImGui_ImplVulkanH_CreateWindowDataSwapChainAndFramebuffer(VkPhysicalDevice
info.width = wd->Width; info.width = wd->Width;
info.height = wd->Height; info.height = wd->Height;
info.layers = 1; info.layers = 1;
for (uint32_t i = 0; i < wd->BackBufferCount; i++) for (uint32_t i = 0; i < wd->ImageCount; i++)
{ {
attachment[0] = wd->BackBufferView[i]; ImGui_ImplVulkanH_Frame* fd = &wd->Frames[i];
err = vkCreateFramebuffer(device, &info, allocator, &wd->Framebuffer[i]); attachment[0] = fd->BackbufferView;
err = vkCreateFramebuffer(device, &info, allocator, &fd->Framebuffer);
check_vk_result(err); check_vk_result(err);
} }
} }
} }
void ImGui_ImplVulkanH_DestroyWindowData(VkInstance instance, VkDevice device, ImGui_ImplVulkanH_WindowData* wd, const VkAllocationCallbacks* allocator) void ImGui_ImplVulkanH_CreateWindow(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)
{
(void)instance;
ImGui_ImplVulkanH_CreateWindowSwapChain(physical_device, device, wd, allocator, width, height, min_image_count);
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) vkDeviceWaitIdle(device); // FIXME: We could wait on the Queue if we had the queue in wd-> (otherwise VulkanH functions can't use globals)
//vkQueueWaitIdle(g_Queue); //vkQueueWaitIdle(g_Queue);
for (int i = 0; i < IM_ARRAYSIZE(wd->Frames); i++) for (uint32_t i = 0; i < wd->ImageCount; i++)
{ {
ImGui_ImplVulkanH_FrameData* fd = &wd->Frames[i]; ImGui_ImplVulkanH_DestroyFrame(device, &wd->Frames[i], allocator);
vkDestroyFence(device, fd->Fence, allocator); ImGui_ImplVulkanH_DestroyFrameSemaphores(device, &wd->FrameSemaphores[i], allocator);
vkFreeCommandBuffers(device, fd->CommandPool, 1, &fd->CommandBuffer);
vkDestroyCommandPool(device, fd->CommandPool, allocator);
vkDestroySemaphore(device, fd->ImageAcquiredSemaphore, allocator);
vkDestroySemaphore(device, fd->RenderCompleteSemaphore, allocator);
}
for (uint32_t i = 0; i < wd->BackBufferCount; i++)
{
vkDestroyImageView(device, wd->BackBufferView[i], allocator);
vkDestroyFramebuffer(device, wd->Framebuffer[i], allocator);
} }
IM_FREE(wd->Frames);
IM_FREE(wd->FrameSemaphores);
wd->Frames = NULL;
wd->FrameSemaphores = NULL;
vkDestroyRenderPass(device, wd->RenderPass, allocator); vkDestroyRenderPass(device, wd->RenderPass, allocator);
vkDestroySwapchainKHR(device, wd->Swapchain, allocator); vkDestroySwapchainKHR(device, wd->Swapchain, allocator);
vkDestroySurfaceKHR(instance, wd->Surface, allocator); vkDestroySurfaceKHR(instance, wd->Surface, allocator);
*wd = ImGui_ImplVulkanH_WindowData();
*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_DestroyFrameRenderBuffers(VkDevice device, ImGui_ImplVulkanH_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_ImplVulkanH_DestroyWindowRenderBuffers(VkDevice device, ImGui_ImplVulkanH_WindowRenderBuffers* buffers, const VkAllocationCallbacks* allocator)
{
for (uint32_t n = 0; n < buffers->Count; n++)
ImGui_ImplVulkanH_DestroyFrameRenderBuffers(device, &buffers->FrameRenderBuffers[n], allocator);
IM_FREE(buffers->FrameRenderBuffers);
buffers->FrameRenderBuffers = NULL;
buffers->Index = 0;
buffers->Count = 0;
} }

93
examples/imgui_impl_vulkan.h
View File

@ -11,24 +11,32 @@
// The aim of imgui_impl_vulkan.h/.cpp is to be usable in your engine without any modification. // 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/ // IF YOU FEEL YOU NEED TO MAKE ANY CHANGE TO THIS CODE, please share them and your feedback at https://github.com/ocornut/imgui/
// 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 back-end in your engine/app.
// - Helper ImGui_ImplVulkanH_XXX functions and structures are only used by this example (main.cpp) and by
// the back-end itself (imgui_impl_vulkan.cpp), but should PROBABLY NOT be used by your own engine/app code.
// Read comments in imgui_impl_vulkan.h.
#pragma once #pragma once
#include <vulkan/vulkan.h> #include <vulkan/vulkan.h>
#define IMGUI_VK_QUEUED_FRAMES 2 // Initialization data, for ImGui_ImplVulkan_Init()
// [Please zero-clear before use!]
// Please zero-clear before use.
struct ImGui_ImplVulkan_InitInfo struct ImGui_ImplVulkan_InitInfo
{ {
VkInstance Instance; VkInstance Instance;
VkPhysicalDevice PhysicalDevice; VkPhysicalDevice PhysicalDevice;
VkDevice Device; VkDevice Device;
uint32_t QueueFamily; uint32_t QueueFamily;
VkQueue Queue; VkQueue Queue;
VkPipelineCache PipelineCache; VkPipelineCache PipelineCache;
VkDescriptorPool DescriptorPool; VkDescriptorPool DescriptorPool;
const VkAllocationCallbacks* Allocator; uint32_t MinImageCount; // >= 2
void (*CheckVkResultFn)(VkResult err); uint32_t ImageCount; // >= MinImageCount
const VkAllocationCallbacks* Allocator;
void (*CheckVkResultFn)(VkResult err);
}; };
// Called by user code // Called by user code
@ -37,16 +45,13 @@ IMGUI_IMPL_API void ImGui_ImplVulkan_Shutdown();
IMGUI_IMPL_API void ImGui_ImplVulkan_NewFrame(); IMGUI_IMPL_API void ImGui_ImplVulkan_NewFrame();
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_IMPL_API bool ImGui_ImplVulkan_CreateFontsTexture(VkCommandBuffer command_buffer); IMGUI_IMPL_API bool ImGui_ImplVulkan_CreateFontsTexture(VkCommandBuffer command_buffer);
IMGUI_IMPL_API void ImGui_ImplVulkan_InvalidateFontUploadObjects(); IMGUI_IMPL_API void ImGui_ImplVulkan_DestroyFontUploadObjects();
IMGUI_IMPL_API void ImGui_ImplVulkan_SetMinImageCount(uint32_t min_image_count); // To override MinImageCount after initialization (e.g. if swap chain is recreated)
// Called by ImGui_ImplVulkan_Init() might be useful elsewhere.
IMGUI_IMPL_API bool ImGui_ImplVulkan_CreateDeviceObjects();
IMGUI_IMPL_API void ImGui_ImplVulkan_InvalidateDeviceObjects();
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
// Internal / Miscellaneous Vulkan Helpers // Internal / Miscellaneous Vulkan Helpers
// (Used by example's main.cpp. Used by multi-viewport features. Probably NOT used by your own app.) // (Used by example's main.cpp. Used by multi-viewport features. PROBABLY NOT used by your own engine/app.)
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
// You probably do NOT need to use or care about those functions. // You probably do NOT need to use or care about those functions.
// Those functions only exist because: // Those functions only exist because:
@ -54,38 +59,44 @@ IMGUI_IMPL_API void ImGui_ImplVulkan_InvalidateDeviceObjects();
// 2) the upcoming multi-viewport feature will need them internally. // 2) the upcoming multi-viewport feature will need them internally.
// Generally we avoid exposing any kind of superfluous high-level helpers in the bindings, // Generally we avoid exposing any kind of superfluous high-level helpers in the bindings,
// but it is too much code to duplicate everywhere so we exceptionally expose them. // but it is too much code to duplicate everywhere so we exceptionally expose them.
// Your application/engine will likely already have code to setup all that stuff (swap chain, render pass, frame buffers, etc.). //
// 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. // You may read this code to learn about Vulkan, but it is recommended you use you own custom tailored code to do equivalent work.
// (those functions do not interact with any of the state used by the regular ImGui_ImplVulkan_XXX functions) // (The ImGui_ImplVulkanH_XXX functions do not interact with any of the state used by the regular ImGui_ImplVulkan_XXX functions)
//------------------------------------------------------------------------- //-------------------------------------------------------------------------
struct ImGui_ImplVulkanH_FrameData; struct ImGui_ImplVulkanH_Frame;
struct ImGui_ImplVulkanH_WindowData; struct ImGui_ImplVulkanH_Window;
IMGUI_IMPL_API void ImGui_ImplVulkanH_CreateWindowDataCommandBuffers(VkPhysicalDevice physical_device, VkDevice device, uint32_t queue_family, ImGui_ImplVulkanH_WindowData* wd, const VkAllocationCallbacks* allocator); // Helpers
IMGUI_IMPL_API void ImGui_ImplVulkanH_CreateWindowDataSwapChainAndFramebuffer(VkPhysicalDevice physical_device, VkDevice device, ImGui_ImplVulkanH_WindowData* wd, const VkAllocationCallbacks* allocator, int w, int h); IMGUI_IMPL_API void ImGui_ImplVulkanH_CreateWindow(VkInstance instance, VkPhysicalDevice physical_device, VkDevice device, ImGui_ImplVulkanH_Window* wnd, 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 void ImGui_ImplVulkanH_DestroyWindow(VkInstance instance, VkDevice device, ImGui_ImplVulkanH_Window* wnd, 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 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); IMGUI_IMPL_API VkPresentModeKHR ImGui_ImplVulkanH_SelectPresentMode(VkPhysicalDevice physical_device, VkSurfaceKHR surface, const VkPresentModeKHR* request_modes, int request_modes_count);
IMGUI_IMPL_API int ImGui_ImplVulkanH_GetMinImageCountFromPresentMode(VkPresentModeKHR present_mode); IMGUI_IMPL_API int ImGui_ImplVulkanH_GetMinImageCountFromPresentMode(VkPresentModeKHR present_mode);
// Helper structure to hold the data needed by one rendering frame // 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.) // (Used by example's main.cpp. Used by multi-viewport features. Probably NOT used by your own engine/app.)
struct ImGui_ImplVulkanH_FrameData // [Please zero-clear before use!]
struct ImGui_ImplVulkanH_Frame
{ {
uint32_t BackbufferIndex; // Keep track of recently rendered swapchain frame indices
VkCommandPool CommandPool; VkCommandPool CommandPool;
VkCommandBuffer CommandBuffer; VkCommandBuffer CommandBuffer;
VkFence Fence; VkFence Fence;
VkImage Backbuffer;
VkImageView BackbufferView;
VkFramebuffer Framebuffer;
};
struct ImGui_ImplVulkanH_FrameSemaphores
{
VkSemaphore ImageAcquiredSemaphore; VkSemaphore ImageAcquiredSemaphore;
VkSemaphore RenderCompleteSemaphore; VkSemaphore RenderCompleteSemaphore;
IMGUI_IMPL_API ImGui_ImplVulkanH_FrameData();
}; };
// Helper structure to hold the data needed by one rendering context into one OS window // Helper structure to hold the data needed by one rendering context into one OS window
// (Used by example's main.cpp. Used by multi-viewport features. Probably NOT used by your own app.) // (Used by example's main.cpp. Used by multi-viewport features. Probably NOT used by your own engine/app.)
struct ImGui_ImplVulkanH_WindowData struct ImGui_ImplVulkanH_Window
{ {
int Width; int Width;
int Height; int Height;
@ -96,13 +107,17 @@ struct ImGui_ImplVulkanH_WindowData
VkRenderPass RenderPass; VkRenderPass RenderPass;
bool ClearEnable; bool ClearEnable;
VkClearValue ClearValue; VkClearValue ClearValue;
uint32_t BackBufferCount; uint32_t FrameIndex; // Current frame being rendered to (0 <= FrameIndex < FrameInFlightCount)
VkImage BackBuffer[16]; uint32_t ImageCount; // Number of simultaneous in-flight frames (returned by vkGetSwapchainImagesKHR, usually derived from min_image_count)
VkImageView BackBufferView[16]; uint32_t SemaphoreIndex; // Current set of swapchain wait semaphores we're using (needs to be distinct from per frame data)
VkFramebuffer Framebuffer[16]; ImGui_ImplVulkanH_Frame* Frames;
uint32_t FrameIndex; ImGui_ImplVulkanH_FrameSemaphores* FrameSemaphores;
ImGui_ImplVulkanH_FrameData Frames[IMGUI_VK_QUEUED_FRAMES];
IMGUI_IMPL_API ImGui_ImplVulkanH_WindowData(); ImGui_ImplVulkanH_Window()
{
memset(this, 0, sizeof(*this));
PresentMode = VK_PRESENT_MODE_MAX_ENUM_KHR;
ClearEnable = true;
}
}; };