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examples/vulkan: add optional dynamic rendering support (APP_USE_DYNAMIC_RENDERING)

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Add opt-in dynamic rendering support to all four Vulkan examples
(glfw, sdl2, sdl3, win32) via a commented-out macro at the top of
each main.cpp:
  //#define APP_USE_DYNAMIC_RENDERING
This commit is contained in:
DuanShuHan 2026-04-09 23:43:01 +08:00 • committed by DuanShuHan
parent bbcc83e999
commit e6750fc4e1
4 changed files with 331 additions and 10 deletions
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89
examples/example_glfw_vulkan/main.cpp
View file

@ -36,6 +36,7 @@
#endif
//#define APP_USE_UNLIMITED_FRAME_RATE
// #define APP_USE_DYNAMIC_RENDERING
#ifdef _DEBUG
#define APP_USE_VULKAN_DEBUG_REPORT
static VkDebugReportCallbackEXT g_DebugReport = VK_NULL_HANDLE;
@ -158,7 +159,14 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
// Create Logical Device (with 1 queue)
{
ImVector<const char*> device_extensions;
device_extensions.push_back("VK_KHR_swapchain");
device_extensions.push_back(VK_KHR_SWAPCHAIN_EXTENSION_NAME);
#ifdef APP_USE_DYNAMIC_RENDERING
device_extensions.push_back(VK_KHR_DYNAMIC_RENDERING_EXTENSION_NAME);
device_extensions.push_back(VK_KHR_DEPTH_STENCIL_RESOLVE_EXTENSION_NAME);
device_extensions.push_back(VK_KHR_CREATE_RENDERPASS_2_EXTENSION_NAME);
device_extensions.push_back(VK_KHR_MAINTENANCE2_EXTENSION_NAME);
device_extensions.push_back(VK_KHR_MULTIVIEW_EXTENSION_NAME);
#endif
// Enumerate physical device extension
uint32_t properties_count;
@ -179,6 +187,13 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
queue_info[0].pQueuePriorities = queue_priority;
VkDeviceCreateInfo create_info = {};
create_info.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
#ifdef APP_USE_DYNAMIC_RENDERING
VkPhysicalDeviceDynamicRenderingFeaturesKHR physicalDeviceDynamicRenderingFeaturesKHR{};
physicalDeviceDynamicRenderingFeaturesKHR.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_DYNAMIC_RENDERING_FEATURES_KHR;
physicalDeviceDynamicRenderingFeaturesKHR.pNext = nullptr;
physicalDeviceDynamicRenderingFeaturesKHR.dynamicRendering = VK_TRUE;
create_info.pNext = &physicalDeviceDynamicRenderingFeaturesKHR;
#endif
create_info.queueCreateInfoCount = sizeof(queue_info) / sizeof(queue_info[0]);
create_info.pQueueCreateInfos = queue_info;
create_info.enabledExtensionCount = (uint32_t)device_extensions.Size;
@ -238,6 +253,9 @@ static void SetupVulkanWindow(ImGui_ImplVulkanH_Window* wd, VkSurfaceKHR surface
// Create SwapChain, RenderPass, Framebuffer, etc.
IM_ASSERT(g_MinImageCount >= 2);
#ifdef APP_USE_DYNAMIC_RENDERING
wd->UseDynamicRendering = true;
#endif
ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, wd, g_QueueFamily, g_Allocator, width, height, g_MinImageCount, 0);
}
@ -290,6 +308,41 @@ static void FrameRender(ImGui_ImplVulkanH_Window* wd, ImDrawData* draw_data)
err = vkBeginCommandBuffer(fd->CommandBuffer, &info);
check_vk_result(err);
}
// Begin rendering
#ifdef APP_USE_DYNAMIC_RENDERING
{
VkImageMemoryBarrier barrier = {};
barrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
barrier.dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
barrier.oldLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
barrier.newLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
barrier.image = fd->Backbuffer;
barrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
barrier.subresourceRange.levelCount = 1;
barrier.subresourceRange.layerCount = 1;
vkCmdPipelineBarrier(fd->CommandBuffer, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, 0, 0, nullptr, 0, nullptr, 1, &barrier);
VkRenderingAttachmentInfoKHR attach_info = {};
attach_info.sType = VK_STRUCTURE_TYPE_RENDERING_ATTACHMENT_INFO_KHR;
attach_info.imageView = fd->BackbufferView;
attach_info.imageLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
attach_info.loadOp = wd->AttachmentDesc.loadOp;
attach_info.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
attach_info.clearValue = wd->ClearValue;
VkRenderingInfoKHR info = {};
info.sType = VK_STRUCTURE_TYPE_RENDERING_INFO_KHR;
info.renderArea.extent.width = wd->Width;
info.renderArea.extent.height = wd->Height;
info.layerCount = 1;
info.colorAttachmentCount = 1;
info.pColorAttachments = &attach_info;
static auto fn_vkCmdBeginRenderingKHR = reinterpret_cast<PFN_vkCmdBeginRenderingKHR>(vkGetDeviceProcAddr(g_Device, "vkCmdBeginRenderingKHR"));
fn_vkCmdBeginRenderingKHR(fd->CommandBuffer, &info);
}
#else
{
VkRenderPassBeginInfo info = {};
info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
@ -301,12 +354,33 @@ static void FrameRender(ImGui_ImplVulkanH_Window* wd, ImDrawData* draw_data)
info.pClearValues = &wd->ClearValue;
vkCmdBeginRenderPass(fd->CommandBuffer, &info, VK_SUBPASS_CONTENTS_INLINE);
}
#endif
// Record dear imgui primitives into command buffer
ImGui_ImplVulkan_RenderDrawData(draw_data, fd->CommandBuffer);
// Submit command buffer
vkCmdEndRenderPass(fd->CommandBuffer);
// End rendering
#ifdef APP_USE_DYNAMIC_RENDERING
{
static auto fn_vkCmdEndRenderingKHR = reinterpret_cast<PFN_vkCmdEndRenderingKHR>(vkGetDeviceProcAddr(g_Device, "vkCmdEndRenderingKHR"));
fn_vkCmdEndRenderingKHR(fd->CommandBuffer);
VkImageMemoryBarrier barrier = {};
barrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
barrier.srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
barrier.oldLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
barrier.newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
barrier.image = fd->Backbuffer;
barrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
barrier.subresourceRange.levelCount = 1;
barrier.subresourceRange.layerCount = 1;
vkCmdPipelineBarrier(fd->CommandBuffer, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, 0, 0, nullptr, 0, nullptr, 1, &barrier);
}
#else
{
vkCmdEndRenderPass(fd->CommandBuffer);
}
#endif
{
VkPipelineStageFlags wait_stage = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
VkSubmitInfo info = {};
@ -426,9 +500,16 @@ int main(int, char**)
init_info.MinImageCount = g_MinImageCount;
init_info.ImageCount = wd->ImageCount;
init_info.Allocator = g_Allocator;
init_info.PipelineInfoMain.RenderPass = wd->RenderPass;
init_info.PipelineInfoMain.Subpass = 0;
init_info.PipelineInfoMain.MSAASamples = VK_SAMPLE_COUNT_1_BIT;
#ifdef APP_USE_DYNAMIC_RENDERING
init_info.UseDynamicRendering = true;
init_info.PipelineInfoMain.PipelineRenderingCreateInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO_KHR;
init_info.PipelineInfoMain.PipelineRenderingCreateInfo.colorAttachmentCount = 1;
init_info.PipelineInfoMain.PipelineRenderingCreateInfo.pColorAttachmentFormats = &wd->SurfaceFormat.format;
#else
init_info.PipelineInfoMain.RenderPass = wd->RenderPass;
#endif
init_info.CheckVkResultFn = check_vk_result;
ImGui_ImplVulkan_Init(&init_info);

84
examples/example_sdl2_vulkan/main.cpp
View file

@ -31,6 +31,7 @@
#endif
//#define APP_USE_UNLIMITED_FRAME_RATE
//#define APP_USE_DYNAMIC_RENDERING
#ifdef _DEBUG
#define APP_USE_VULKAN_DEBUG_REPORT
static VkDebugReportCallbackEXT g_DebugReport = VK_NULL_HANDLE;
@ -150,6 +151,13 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
{
ImVector<const char*> device_extensions;
device_extensions.push_back("VK_KHR_swapchain");
#ifdef APP_USE_DYNAMIC_RENDERING
device_extensions.push_back(VK_KHR_DYNAMIC_RENDERING_EXTENSION_NAME);
device_extensions.push_back(VK_KHR_DEPTH_STENCIL_RESOLVE_EXTENSION_NAME);
device_extensions.push_back(VK_KHR_CREATE_RENDERPASS_2_EXTENSION_NAME);
device_extensions.push_back(VK_KHR_MAINTENANCE2_EXTENSION_NAME);
device_extensions.push_back(VK_KHR_MULTIVIEW_EXTENSION_NAME);
#endif
// Enumerate physical device extension
uint32_t properties_count;
@ -170,6 +178,13 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
queue_info[0].pQueuePriorities = queue_priority;
VkDeviceCreateInfo create_info = {};
create_info.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
#ifdef APP_USE_DYNAMIC_RENDERING
VkPhysicalDeviceDynamicRenderingFeaturesKHR physicalDeviceDynamicRenderingFeaturesKHR{};
physicalDeviceDynamicRenderingFeaturesKHR.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_DYNAMIC_RENDERING_FEATURES_KHR;
physicalDeviceDynamicRenderingFeaturesKHR.pNext = nullptr;
physicalDeviceDynamicRenderingFeaturesKHR.dynamicRendering = VK_TRUE;
create_info.pNext = &physicalDeviceDynamicRenderingFeaturesKHR;
#endif
create_info.queueCreateInfoCount = sizeof(queue_info) / sizeof(queue_info[0]);
create_info.pQueueCreateInfos = queue_info;
create_info.enabledExtensionCount = (uint32_t)device_extensions.Size;
@ -229,6 +244,9 @@ static void SetupVulkanWindow(ImGui_ImplVulkanH_Window* wd, VkSurfaceKHR surface
// Create SwapChain, RenderPass, Framebuffer, etc.
IM_ASSERT(g_MinImageCount >= 2);
#ifdef APP_USE_DYNAMIC_RENDERING
wd->UseDynamicRendering = true;
#endif
ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, wd, g_QueueFamily, g_Allocator, width, height, g_MinImageCount, 0);
}
@ -281,6 +299,41 @@ static void FrameRender(ImGui_ImplVulkanH_Window* wd, ImDrawData* draw_data)
err = vkBeginCommandBuffer(fd->CommandBuffer, &info);
check_vk_result(err);
}
// Begin rendering
#ifdef APP_USE_DYNAMIC_RENDERING
{
VkImageMemoryBarrier barrier = {};
barrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
barrier.dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
barrier.oldLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
barrier.newLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
barrier.image = fd->Backbuffer;
barrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
barrier.subresourceRange.levelCount = 1;
barrier.subresourceRange.layerCount = 1;
vkCmdPipelineBarrier(fd->CommandBuffer, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, 0, 0, nullptr, 0, nullptr, 1, &barrier);
VkRenderingAttachmentInfoKHR attach_info = {};
attach_info.sType = VK_STRUCTURE_TYPE_RENDERING_ATTACHMENT_INFO_KHR;
attach_info.imageView = fd->BackbufferView;
attach_info.imageLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
attach_info.loadOp = wd->AttachmentDesc.loadOp;
attach_info.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
attach_info.clearValue = wd->ClearValue;
VkRenderingInfoKHR info = {};
info.sType = VK_STRUCTURE_TYPE_RENDERING_INFO_KHR;
info.renderArea.extent.width = wd->Width;
info.renderArea.extent.height = wd->Height;
info.layerCount = 1;
info.colorAttachmentCount = 1;
info.pColorAttachments = &attach_info;
static auto fn_vkCmdBeginRenderingKHR = reinterpret_cast<PFN_vkCmdBeginRenderingKHR>(vkGetDeviceProcAddr(g_Device, "vkCmdBeginRenderingKHR"));
fn_vkCmdBeginRenderingKHR(fd->CommandBuffer, &info);
}
#else
{
VkRenderPassBeginInfo info = {};
info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
@ -292,12 +345,33 @@ static void FrameRender(ImGui_ImplVulkanH_Window* wd, ImDrawData* draw_data)
info.pClearValues = &wd->ClearValue;
vkCmdBeginRenderPass(fd->CommandBuffer, &info, VK_SUBPASS_CONTENTS_INLINE);
}
#endif
// Record dear imgui primitives into command buffer
ImGui_ImplVulkan_RenderDrawData(draw_data, fd->CommandBuffer);
// Submit command buffer
vkCmdEndRenderPass(fd->CommandBuffer);
// End rendering
#ifdef APP_USE_DYNAMIC_RENDERING
{
static auto fn_vkCmdEndRenderingKHR = reinterpret_cast<PFN_vkCmdEndRenderingKHR>(vkGetDeviceProcAddr(g_Device, "vkCmdEndRenderingKHR"));
fn_vkCmdEndRenderingKHR(fd->CommandBuffer);
VkImageMemoryBarrier barrier = {};
barrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
barrier.srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
barrier.oldLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
barrier.newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
barrier.image = fd->Backbuffer;
barrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
barrier.subresourceRange.levelCount = 1;
barrier.subresourceRange.layerCount = 1;
vkCmdPipelineBarrier(fd->CommandBuffer, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, 0, 0, nullptr, 0, nullptr, 1, &barrier);
}
#else
{
vkCmdEndRenderPass(fd->CommandBuffer);
}
#endif
{
VkPipelineStageFlags wait_stage = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
VkSubmitInfo info = {};
@ -435,6 +509,12 @@ int main(int, char**)
init_info.PipelineInfoMain.RenderPass = wd->RenderPass;
init_info.PipelineInfoMain.Subpass = 0;
init_info.PipelineInfoMain.MSAASamples = VK_SAMPLE_COUNT_1_BIT;
#ifdef APP_USE_DYNAMIC_RENDERING
init_info.UseDynamicRendering = true;
init_info.PipelineInfoMain.PipelineRenderingCreateInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO_KHR;
init_info.PipelineInfoMain.PipelineRenderingCreateInfo.colorAttachmentCount = 1;
init_info.PipelineInfoMain.PipelineRenderingCreateInfo.pColorAttachmentFormats = &wd->SurfaceFormat.format;
#endif
init_info.CheckVkResultFn = check_vk_result;
ImGui_ImplVulkan_Init(&init_info);

84
examples/example_sdl3_vulkan/main.cpp
View file

@ -33,6 +33,7 @@
#endif
//#define APP_USE_UNLIMITED_FRAME_RATE
//#define APP_USE_DYNAMIC_RENDERING
#ifdef _DEBUG
#define APP_USE_VULKAN_DEBUG_REPORT
static VkDebugReportCallbackEXT g_DebugReport = VK_NULL_HANDLE;
@ -152,6 +153,13 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
{
ImVector<const char*> device_extensions;
device_extensions.push_back("VK_KHR_swapchain");
#ifdef APP_USE_DYNAMIC_RENDERING
device_extensions.push_back(VK_KHR_DYNAMIC_RENDERING_EXTENSION_NAME);
device_extensions.push_back(VK_KHR_DEPTH_STENCIL_RESOLVE_EXTENSION_NAME);
device_extensions.push_back(VK_KHR_CREATE_RENDERPASS_2_EXTENSION_NAME);
device_extensions.push_back(VK_KHR_MAINTENANCE2_EXTENSION_NAME);
device_extensions.push_back(VK_KHR_MULTIVIEW_EXTENSION_NAME);
#endif
// Enumerate physical device extension
uint32_t properties_count;
@ -172,6 +180,13 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
queue_info[0].pQueuePriorities = queue_priority;
VkDeviceCreateInfo create_info = {};
create_info.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
#ifdef APP_USE_DYNAMIC_RENDERING
VkPhysicalDeviceDynamicRenderingFeaturesKHR physicalDeviceDynamicRenderingFeaturesKHR{};
physicalDeviceDynamicRenderingFeaturesKHR.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_DYNAMIC_RENDERING_FEATURES_KHR;
physicalDeviceDynamicRenderingFeaturesKHR.pNext = nullptr;
physicalDeviceDynamicRenderingFeaturesKHR.dynamicRendering = VK_TRUE;
create_info.pNext = &physicalDeviceDynamicRenderingFeaturesKHR;
#endif
create_info.queueCreateInfoCount = sizeof(queue_info) / sizeof(queue_info[0]);
create_info.pQueueCreateInfos = queue_info;
create_info.enabledExtensionCount = (uint32_t)device_extensions.Size;
@ -231,6 +246,9 @@ static void SetupVulkanWindow(ImGui_ImplVulkanH_Window* wd, VkSurfaceKHR surface
// Create SwapChain, RenderPass, Framebuffer, etc.
IM_ASSERT(g_MinImageCount >= 2);
#ifdef APP_USE_DYNAMIC_RENDERING
wd->UseDynamicRendering = true;
#endif
ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, wd, g_QueueFamily, g_Allocator, width, height, g_MinImageCount, 0);
}
@ -283,6 +301,41 @@ static void FrameRender(ImGui_ImplVulkanH_Window* wd, ImDrawData* draw_data)
err = vkBeginCommandBuffer(fd->CommandBuffer, &info);
check_vk_result(err);
}
// Begin rendering
#ifdef APP_USE_DYNAMIC_RENDERING
{
VkImageMemoryBarrier barrier = {};
barrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
barrier.dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
barrier.oldLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
barrier.newLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
barrier.image = fd->Backbuffer;
barrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
barrier.subresourceRange.levelCount = 1;
barrier.subresourceRange.layerCount = 1;
vkCmdPipelineBarrier(fd->CommandBuffer, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, 0, 0, nullptr, 0, nullptr, 1, &barrier);
VkRenderingAttachmentInfoKHR attach_info = {};
attach_info.sType = VK_STRUCTURE_TYPE_RENDERING_ATTACHMENT_INFO_KHR;
attach_info.imageView = fd->BackbufferView;
attach_info.imageLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
attach_info.loadOp = wd->AttachmentDesc.loadOp;
attach_info.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
attach_info.clearValue = wd->ClearValue;
VkRenderingInfoKHR info = {};
info.sType = VK_STRUCTURE_TYPE_RENDERING_INFO_KHR;
info.renderArea.extent.width = wd->Width;
info.renderArea.extent.height = wd->Height;
info.layerCount = 1;
info.colorAttachmentCount = 1;
info.pColorAttachments = &attach_info;
static auto fn_vkCmdBeginRenderingKHR = reinterpret_cast<PFN_vkCmdBeginRenderingKHR>(vkGetDeviceProcAddr(g_Device, "vkCmdBeginRenderingKHR"));
fn_vkCmdBeginRenderingKHR(fd->CommandBuffer, &info);
}
#else
{
VkRenderPassBeginInfo info = {};
info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
@ -294,12 +347,33 @@ static void FrameRender(ImGui_ImplVulkanH_Window* wd, ImDrawData* draw_data)
info.pClearValues = &wd->ClearValue;
vkCmdBeginRenderPass(fd->CommandBuffer, &info, VK_SUBPASS_CONTENTS_INLINE);
}
#endif
// Record dear imgui primitives into command buffer
ImGui_ImplVulkan_RenderDrawData(draw_data, fd->CommandBuffer);
// Submit command buffer
vkCmdEndRenderPass(fd->CommandBuffer);
// End rendering
#ifdef APP_USE_DYNAMIC_RENDERING
{
static auto fn_vkCmdEndRenderingKHR = reinterpret_cast<PFN_vkCmdEndRenderingKHR>(vkGetDeviceProcAddr(g_Device, "vkCmdEndRenderingKHR"));
fn_vkCmdEndRenderingKHR(fd->CommandBuffer);
VkImageMemoryBarrier barrier = {};
barrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
barrier.srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
barrier.oldLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
barrier.newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
barrier.image = fd->Backbuffer;
barrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
barrier.subresourceRange.levelCount = 1;
barrier.subresourceRange.layerCount = 1;
vkCmdPipelineBarrier(fd->CommandBuffer, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, 0, 0, nullptr, 0, nullptr, 1, &barrier);
}
#else
{
vkCmdEndRenderPass(fd->CommandBuffer);
}
#endif
{
VkPipelineStageFlags wait_stage = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
VkSubmitInfo info = {};
@ -434,6 +508,12 @@ int main(int, char**)
init_info.PipelineInfoMain.RenderPass = wd->RenderPass;
init_info.PipelineInfoMain.Subpass = 0;
init_info.PipelineInfoMain.MSAASamples = VK_SAMPLE_COUNT_1_BIT;
#ifdef APP_USE_DYNAMIC_RENDERING
init_info.UseDynamicRendering = true;
init_info.PipelineInfoMain.PipelineRenderingCreateInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO_KHR;
init_info.PipelineInfoMain.PipelineRenderingCreateInfo.colorAttachmentCount = 1;
init_info.PipelineInfoMain.PipelineRenderingCreateInfo.pColorAttachmentFormats = &wd->SurfaceFormat.format;
#endif
init_info.CheckVkResultFn = check_vk_result;
ImGui_ImplVulkan_Init(&init_info);

84
examples/example_win32_vulkan/main.cpp
View file

@ -29,6 +29,7 @@
#endif
//#define APP_USE_UNLIMITED_FRAME_RATE
//#define APP_USE_DYNAMIC_RENDERING
#ifdef _DEBUG
#define APP_USE_VULKAN_DEBUG_REPORT
#endif
@ -148,6 +149,13 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
{
ImVector<const char*> device_extensions;
device_extensions.push_back("VK_KHR_swapchain");
#ifdef APP_USE_DYNAMIC_RENDERING
device_extensions.push_back(VK_KHR_DYNAMIC_RENDERING_EXTENSION_NAME);
device_extensions.push_back(VK_KHR_DEPTH_STENCIL_RESOLVE_EXTENSION_NAME);
device_extensions.push_back(VK_KHR_CREATE_RENDERPASS_2_EXTENSION_NAME);
device_extensions.push_back(VK_KHR_MAINTENANCE2_EXTENSION_NAME);
device_extensions.push_back(VK_KHR_MULTIVIEW_EXTENSION_NAME);
#endif
// Enumerate physical device extension
uint32_t properties_count;
@ -168,6 +176,13 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
queue_info[0].pQueuePriorities = queue_priority;
VkDeviceCreateInfo create_info = {};
create_info.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
#ifdef APP_USE_DYNAMIC_RENDERING
VkPhysicalDeviceDynamicRenderingFeaturesKHR physicalDeviceDynamicRenderingFeaturesKHR{};
physicalDeviceDynamicRenderingFeaturesKHR.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_DYNAMIC_RENDERING_FEATURES_KHR;
physicalDeviceDynamicRenderingFeaturesKHR.pNext = nullptr;
physicalDeviceDynamicRenderingFeaturesKHR.dynamicRendering = VK_TRUE;
create_info.pNext = &physicalDeviceDynamicRenderingFeaturesKHR;
#endif
create_info.queueCreateInfoCount = sizeof(queue_info) / sizeof(queue_info[0]);
create_info.pQueueCreateInfos = queue_info;
create_info.enabledExtensionCount = (uint32_t)device_extensions.Size;
@ -227,6 +242,9 @@ static void SetupVulkanWindow(ImGui_ImplVulkanH_Window* wd, VkSurfaceKHR surface
// Create SwapChain, RenderPass, Framebuffer, etc.
IM_ASSERT(g_MinImageCount >= 2);
#ifdef APP_USE_DYNAMIC_RENDERING
wd->UseDynamicRendering = true;
#endif
ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, wd, g_QueueFamily, g_Allocator, width, height, g_MinImageCount, 0);
}
@ -279,6 +297,41 @@ static void FrameRender(ImGui_ImplVulkanH_Window* wd, ImDrawData* draw_data)
err = vkBeginCommandBuffer(fd->CommandBuffer, &info);
check_vk_result(err);
}
// Begin rendering
#ifdef APP_USE_DYNAMIC_RENDERING
{
VkImageMemoryBarrier barrier = {};
barrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
barrier.dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
barrier.oldLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
barrier.newLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
barrier.image = fd->Backbuffer;
barrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
barrier.subresourceRange.levelCount = 1;
barrier.subresourceRange.layerCount = 1;
vkCmdPipelineBarrier(fd->CommandBuffer, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, 0, 0, nullptr, 0, nullptr, 1, &barrier);
VkRenderingAttachmentInfoKHR attach_info = {};
attach_info.sType = VK_STRUCTURE_TYPE_RENDERING_ATTACHMENT_INFO_KHR;
attach_info.imageView = fd->BackbufferView;
attach_info.imageLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
attach_info.loadOp = wd->AttachmentDesc.loadOp;
attach_info.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
attach_info.clearValue = wd->ClearValue;
VkRenderingInfoKHR info = {};
info.sType = VK_STRUCTURE_TYPE_RENDERING_INFO_KHR;
info.renderArea.extent.width = wd->Width;
info.renderArea.extent.height = wd->Height;
info.layerCount = 1;
info.colorAttachmentCount = 1;
info.pColorAttachments = &attach_info;
static auto fn_vkCmdBeginRenderingKHR = reinterpret_cast<PFN_vkCmdBeginRenderingKHR>(vkGetDeviceProcAddr(g_Device, "vkCmdBeginRenderingKHR"));
fn_vkCmdBeginRenderingKHR(fd->CommandBuffer, &info);
}
#else
{
VkRenderPassBeginInfo info = {};
info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
@ -290,12 +343,33 @@ static void FrameRender(ImGui_ImplVulkanH_Window* wd, ImDrawData* draw_data)
info.pClearValues = &wd->ClearValue;
vkCmdBeginRenderPass(fd->CommandBuffer, &info, VK_SUBPASS_CONTENTS_INLINE);
}
#endif
// Record dear imgui primitives into command buffer
ImGui_ImplVulkan_RenderDrawData(draw_data, fd->CommandBuffer);
// Submit command buffer
vkCmdEndRenderPass(fd->CommandBuffer);
// End rendering
#ifdef APP_USE_DYNAMIC_RENDERING
{
static auto fn_vkCmdEndRenderingKHR = reinterpret_cast<PFN_vkCmdEndRenderingKHR>(vkGetDeviceProcAddr(g_Device, "vkCmdEndRenderingKHR"));
fn_vkCmdEndRenderingKHR(fd->CommandBuffer);
VkImageMemoryBarrier barrier = {};
barrier.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER;
barrier.srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT;
barrier.oldLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
barrier.newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
barrier.image = fd->Backbuffer;
barrier.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
barrier.subresourceRange.levelCount = 1;
barrier.subresourceRange.layerCount = 1;
vkCmdPipelineBarrier(fd->CommandBuffer, VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT, VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT, 0, 0, nullptr, 0, nullptr, 1, &barrier);
}
#else
{
vkCmdEndRenderPass(fd->CommandBuffer);
}
#endif
{
VkPipelineStageFlags wait_stage = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
VkSubmitInfo info = {};
@ -434,6 +508,12 @@ int main(int, char**)
init_info.PipelineInfoMain.RenderPass = wd->RenderPass;
init_info.PipelineInfoMain.Subpass = 0;
init_info.PipelineInfoMain.MSAASamples = VK_SAMPLE_COUNT_1_BIT;
#ifdef APP_USE_DYNAMIC_RENDERING
init_info.UseDynamicRendering = true;
init_info.PipelineInfoMain.PipelineRenderingCreateInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO_KHR;
init_info.PipelineInfoMain.PipelineRenderingCreateInfo.colorAttachmentCount = 1;
init_info.PipelineInfoMain.PipelineRenderingCreateInfo.pColorAttachmentFormats = &wd->SurfaceFormat.format;
#endif
init_info.CheckVkResultFn = check_vk_result;
ImGui_ImplVulkan_Init(&init_info);