diff --git a/backends/imgui_impl_android.cpp b/backends/imgui_impl_android.cpp index a76de1c26..2f390443b 100644 --- a/backends/imgui_impl_android.cpp +++ b/backends/imgui_impl_android.cpp @@ -32,7 +32,7 @@ #include "imgui.h" #ifndef IMGUI_DISABLE #include "imgui_impl_android.h" -#include +#include #include #include #include diff --git a/examples/example_android_vulkan/.gitignore b/examples/example_android_vulkan/.gitignore new file mode 100644 index 000000000..aa724b770 --- /dev/null +++ b/examples/example_android_vulkan/.gitignore @@ -0,0 +1,15 @@ +*.iml +.gradle +/local.properties +/.idea/caches +/.idea/libraries +/.idea/modules.xml +/.idea/workspace.xml +/.idea/navEditor.xml +/.idea/assetWizardSettings.xml +.DS_Store +/build +/captures +.externalNativeBuild +.cxx +local.properties diff --git a/examples/example_android_vulkan/app/.gitignore b/examples/example_android_vulkan/app/.gitignore new file mode 100644 index 000000000..42afabfd2 --- /dev/null +++ b/examples/example_android_vulkan/app/.gitignore @@ -0,0 +1 @@ +/build \ No newline at end of file diff --git a/examples/example_android_vulkan/app/build.gradle.kts b/examples/example_android_vulkan/app/build.gradle.kts new file mode 100644 index 000000000..3eb8ca448 --- /dev/null +++ b/examples/example_android_vulkan/app/build.gradle.kts @@ -0,0 +1,55 @@ +plugins { + alias(libs.plugins.android.application) +} + +android { + ndkVersion = "29.0.14206865" + namespace = "imgui.example.android.vulkan" + + compileSdk { + version = release(37) + } + + defaultConfig { + applicationId = "imgui.example.android.vulkan" + minSdk = 30 + targetSdk = 37 + versionCode = 1 + versionName = "1.0" + + testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner" + + @Suppress("UnstableApiUsage") + externalNativeBuild { + cmake { + cppFlags += "-DVK_USE_PLATFORM_ANDROID_KHR" + arguments += "-DANDROID_STL=c++_static" + } + } + } + + buildTypes { + release { + isMinifyEnabled = false + proguardFiles(getDefaultProguardFile("proguard-android-optimize.txt"), "proguard-rules.pro") + } + } + + compileOptions { + sourceCompatibility = JavaVersion.VERSION_11 + targetCompatibility = JavaVersion.VERSION_11 + } + + externalNativeBuild { + cmake { + path = file("src/main/cpp/CMakeLists.txt") + version = "3.22.1" + } + } +} + +dependencies { + implementation(libs.androidx.appcompat) + implementation(libs.androidx.core.ktx) + implementation(libs.material) +} diff --git a/examples/example_android_vulkan/app/proguard-rules.pro b/examples/example_android_vulkan/app/proguard-rules.pro new file mode 100644 index 000000000..481bb4348 --- /dev/null +++ b/examples/example_android_vulkan/app/proguard-rules.pro @@ -0,0 +1,21 @@ +# Add project specific ProGuard rules here. +# You can control the set of applied configuration files using the +# proguardFiles setting in build.gradle. +# +# For more details, see +# http://developer.android.com/guide/developing/tools/proguard.html + +# If your project uses WebView with JS, uncomment the following +# and specify the fully qualified class name to the JavaScript interface +# class: +#-keepclassmembers class fqcn.of.javascript.interface.for.webview { +# public *; +#} + +# Uncomment this to preserve the line number information for +# debugging stack traces. +#-keepattributes SourceFile,LineNumberTable + +# If you keep the line number information, uncomment this to +# hide the original source file name. +#-renamesourcefileattribute SourceFile \ No newline at end of file diff --git a/examples/example_android_vulkan/app/src/main/AndroidManifest.xml b/examples/example_android_vulkan/app/src/main/AndroidManifest.xml new file mode 100644 index 000000000..6b5bcac5a --- /dev/null +++ b/examples/example_android_vulkan/app/src/main/AndroidManifest.xml @@ -0,0 +1,28 @@ + + + + + + + + + + + + + + + + diff --git a/examples/example_android_vulkan/app/src/main/cpp/CMakeLists.txt b/examples/example_android_vulkan/app/src/main/cpp/CMakeLists.txt new file mode 100644 index 000000000..84db20505 --- /dev/null +++ b/examples/example_android_vulkan/app/src/main/cpp/CMakeLists.txt @@ -0,0 +1,39 @@ +# For more information about using CMake with Android Studio, read the +# documentation: https://d.android.com/studio/projects/add-native-code.html + +cmake_minimum_required(VERSION 3.22.1) + +project(ImGuiExample) + +set(CMAKE_CXX_STANDARD 11) +set(CMAKE_CXX_STANDARD_REQUIRED ON) +set(CMAKE_CXX_EXTENSIONS OFF) + +set(IMGUI_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../../../../../..) + +add_library(${CMAKE_PROJECT_NAME} SHARED + ${CMAKE_CURRENT_SOURCE_DIR}/main.cpp + ${IMGUI_DIR}/imgui.cpp + ${IMGUI_DIR}/imgui_demo.cpp + ${IMGUI_DIR}/imgui_draw.cpp + ${IMGUI_DIR}/imgui_tables.cpp + ${IMGUI_DIR}/imgui_widgets.cpp + ${IMGUI_DIR}/backends/imgui_impl_android.cpp + ${IMGUI_DIR}/backends/imgui_impl_vulkan.cpp + ${ANDROID_NDK}/sources/android/native_app_glue/android_native_app_glue.c +) + +target_include_directories(${CMAKE_PROJECT_NAME} PRIVATE + ${CMAKE_CURRENT_SOURCE_DIR} + ${IMGUI_DIR} + ${IMGUI_DIR}/backends + ${ANDROID_NDK}/sources/android/native_app_glue +) + +set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -u ANativeActivity_onCreate") + +target_link_libraries(${CMAKE_PROJECT_NAME} PRIVATE + android + vulkan + log +) diff --git a/examples/example_android_vulkan/app/src/main/cpp/main.cpp b/examples/example_android_vulkan/app/src/main/cpp/main.cpp new file mode 100644 index 000000000..f55503fd4 --- /dev/null +++ b/examples/example_android_vulkan/app/src/main/cpp/main.cpp @@ -0,0 +1,741 @@ +// dear imgui: standalone example application for Android + OpenGL ES 3 + +// Learn about Dear ImGui: +// - FAQ https://dearimgui.com/faq +// - Getting Started https://dearimgui.com/getting-started +// - Documentation https://dearimgui.com/docs (same as your local docs/ folder). +// - Introduction, links and more at the top of imgui.cpp + +// Important note to the reader who wish to integrate imgui_impl_vulkan.cpp/.h in their own engine/app. +// - Common ImGui_ImplVulkan_XXX functions and structures are used to interface with imgui_impl_vulkan.cpp/.h. +// You will use those if you want to use this rendering backend in your engine/app. +// - Helper ImGui_ImplVulkanH_XXX functions and structures are only used by this example (main.cpp) and by +// the backend itself (imgui_impl_vulkan.cpp), but should PROBABLY NOT be used by your own engine/app code. +// Read comments in imgui_impl_vulkan.h. + +#include "imgui.h" +#include "imgui_impl_vulkan.h" +#include "imgui_impl_android.h" +#include +#include +#include +#include +#include +#include + +#define CALL_VK(func) \ + if (VK_SUCCESS != (func)) { \ + __android_log_print(ANDROID_LOG_ERROR, "HelloVulkan", \ + "Vulkan error. File[%s], line[%d]", __FILE__, \ + __LINE__); \ + assert(false); \ + } + +// Forward declarations of helper functions +static void Init(struct android_app *app); + +static void Shutdown(); + +static void MainLoopStep(); + +static int ShowSoftKeyboardInput(); + +static int PollUnicodeChars(); + +static int GetAssetData(const char *filename, void **out_data); + +// Data +static struct android_app *g_App = nullptr; +static VkAllocationCallbacks *g_Allocator = nullptr; +static VkInstance g_Instance = VK_NULL_HANDLE; +static VkPhysicalDevice g_PhysicalDevice = 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 ImGui_ImplVulkanH_Window g_MainWindowData; +static uint32_t g_MinImageCount = 2; +static bool g_SwapChainRebuild = false; +static bool g_Initialized = false; +static std::string g_IniFilename; + +static void check_vk_result(VkResult err) { + if (err == VK_SUCCESS) + return; + __android_log_print(ANDROID_LOG_ERROR, "ImGuiVulkan", "Error: VkResult = %d\n", err); + if (err < 0) + abort(); +} + +#ifndef NDEBUG + +static VkDebugUtilsMessengerEXT g_DebugMessenger = VK_NULL_HANDLE; + +static VKAPI_ATTR VkBool32 VKAPI_CALL debugCallback( + VkDebugUtilsMessageSeverityFlagBitsEXT messageSeverity, + VkDebugUtilsMessageTypeFlagsEXT messageTypes, + const VkDebugUtilsMessengerCallbackDataEXT *callbackData, + void *userData) { + const char validation[] = "Validation"; + const char performance[] = "Performance"; + const char error[] = "ERROR"; + const char warning[] = "WARNING"; + const char unknownType[] = "UNKNOWN_TYPE"; + const char unknownSeverity[] = "UNKNOWN_SEVERITY"; + const char *typeString = unknownType; + const char *severityString = unknownSeverity; + const char *messageIdName = callbackData->pMessageIdName; + int32_t messageIdNumber = callbackData->messageIdNumber; + const char *message = callbackData->pMessage; + android_LogPriority priority = ANDROID_LOG_UNKNOWN; + + if (messageSeverity & VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT) { + severityString = error; + priority = ANDROID_LOG_ERROR; + } else if (messageSeverity & VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT) { + severityString = warning; + priority = ANDROID_LOG_WARN; + } + if (messageTypes & VK_DEBUG_UTILS_MESSAGE_TYPE_VALIDATION_BIT_EXT) { + typeString = validation; + } else if (messageTypes & VK_DEBUG_UTILS_MESSAGE_TYPE_PERFORMANCE_BIT_EXT) { + typeString = performance; + } + + __android_log_print(priority, + "ImGuiVulkan", + "%s %s: [%s] Code %i : %s", + typeString, + severityString, + messageIdName, + messageIdNumber, + message); + return VK_FALSE; +} + +#endif // NDEBUG + +static bool IsExtensionAvailable(const ImVector &properties, const char *extension) { + for (const VkExtensionProperties &p: properties) + if (strcmp(p.extensionName, extension) == 0) + return true; + return false; +} + +static void SetupVulkan(ImVector instance_extensions) { + VkResult err; + + // Create Vulkan Instance + { + VkInstanceCreateInfo createInfo = {}; + createInfo.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO; + + // Enumerate available extensions + uint32_t properties_count; + ImVector properties; + vkEnumerateInstanceExtensionProperties(nullptr, &properties_count, nullptr); + properties.resize(properties_count); + CALL_VK(vkEnumerateInstanceExtensionProperties(nullptr, &properties_count, properties.Data)); + + // Enable required extensions + if (IsExtensionAvailable(properties, VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME)) + instance_extensions.push_back(VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME); +#ifdef VK_KHR_PORTABILITY_ENUMERATION_EXTENSION_NAME + if (IsExtensionAvailable(properties, VK_KHR_PORTABILITY_ENUMERATION_EXTENSION_NAME)) { + instance_extensions.push_back(VK_KHR_PORTABILITY_ENUMERATION_EXTENSION_NAME); + createInfo.flags |= VK_INSTANCE_CREATE_ENUMERATE_PORTABILITY_BIT_KHR; + } +#endif + + // Enabling validation layers +#ifndef NDEBUG + const char *layers[] = {"VK_LAYER_KHRONOS_validation"}; + createInfo.enabledLayerCount = 1; + createInfo.ppEnabledLayerNames = layers; + instance_extensions.push_back(VK_EXT_DEBUG_UTILS_EXTENSION_NAME); +#endif + + // Create Vulkan Instance + createInfo.enabledExtensionCount = instance_extensions.Size; + createInfo.ppEnabledExtensionNames = instance_extensions.Data; + CALL_VK(vkCreateInstance(&createInfo, g_Allocator, &g_Instance)); + + // Setup the debug report callback +#ifndef NDEBUG + auto vkCreateDebugUtilsMessengerEXT = (PFN_vkCreateDebugUtilsMessengerEXT) vkGetInstanceProcAddr(g_Instance, "vkCreateDebugUtilsMessengerEXT"); + IM_ASSERT(vkCreateDebugUtilsMessengerEXT != nullptr); + + VkDebugUtilsMessengerCreateInfoEXT debugUtilsCi{}; + debugUtilsCi.sType = VK_STRUCTURE_TYPE_DEBUG_UTILS_MESSENGER_CREATE_INFO_EXT; + + debugUtilsCi.messageSeverity = + VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT + | VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT + | VK_DEBUG_UTILS_MESSAGE_SEVERITY_INFO_BIT_EXT; + + debugUtilsCi.messageType = + VK_DEBUG_UTILS_MESSAGE_TYPE_GENERAL_BIT_EXT + | VK_DEBUG_UTILS_MESSAGE_TYPE_VALIDATION_BIT_EXT + | VK_DEBUG_UTILS_MESSAGE_TYPE_PERFORMANCE_BIT_EXT; + + debugUtilsCi.pfnUserCallback = debugCallback; + debugUtilsCi.pUserData = nullptr; + + CALL_VK(vkCreateDebugUtilsMessengerEXT(g_Instance, &debugUtilsCi, g_Allocator, &g_DebugMessenger)); +#endif + } + + // Select Physical Device (GPU) + g_PhysicalDevice = ImGui_ImplVulkanH_SelectPhysicalDevice(g_Instance); + IM_ASSERT(g_PhysicalDevice != VK_NULL_HANDLE); + + // Select graphics queue family + g_QueueFamily = ImGui_ImplVulkanH_SelectQueueFamilyIndex(g_PhysicalDevice); + IM_ASSERT(g_QueueFamily != (uint32_t) -1); + + // Create Logical Device (with 1 queue) + { + ImVector device_extensions; + device_extensions.push_back(VK_KHR_SWAPCHAIN_EXTENSION_NAME); + + // Enumerate physical device extension + uint32_t properties_count; + ImVector properties; + vkEnumerateDeviceExtensionProperties(g_PhysicalDevice, nullptr, &properties_count, nullptr); + properties.resize(properties_count); + CALL_VK(vkEnumerateDeviceExtensionProperties(g_PhysicalDevice, nullptr, &properties_count, properties.Data)); + +#ifdef VK_KHR_PORTABILITY_SUBSET_EXTENSION_NAME + if (IsExtensionAvailable(properties, VK_KHR_PORTABILITY_SUBSET_EXTENSION_NAME)) + device_extensions.push_back(VK_KHR_PORTABILITY_SUBSET_EXTENSION_NAME); +#endif + + const float queue_priority[] = {1.0f}; + VkDeviceQueueCreateInfo queue_info[1] = {}; + queue_info[0].sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO; + queue_info[0].queueFamilyIndex = g_QueueFamily; + queue_info[0].queueCount = 1; + queue_info[0].pQueuePriorities = queue_priority; + VkDeviceCreateInfo create_info = {}; + create_info.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO; + create_info.queueCreateInfoCount = sizeof(queue_info) / sizeof(queue_info[0]); + create_info.pQueueCreateInfos = queue_info; + create_info.enabledExtensionCount = (uint32_t) device_extensions.Size; + create_info.ppEnabledExtensionNames = device_extensions.Data; + CALL_VK(vkCreateDevice(g_PhysicalDevice, &create_info, g_Allocator, &g_Device)); + vkGetDeviceQueue(g_Device, g_QueueFamily, 0, &g_Queue); + } + + // Create Descriptor Pool + // If you wish to load e.g. additional textures you may need to alter pools sizes and maxSets. + { + VkDescriptorPoolSize pool_sizes[] = + { + {VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE, IMGUI_IMPL_VULKAN_MINIMUM_SAMPLED_IMAGE_POOL_SIZE}, + {VK_DESCRIPTOR_TYPE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_SAMPLER_POOL_SIZE}, + }; + VkDescriptorPoolCreateInfo pool_info = {}; + pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO; + pool_info.flags = VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT; + pool_info.maxSets = 0; + for (VkDescriptorPoolSize &pool_size: pool_sizes) + pool_info.maxSets += pool_size.descriptorCount; + pool_info.poolSizeCount = (uint32_t) IM_COUNTOF(pool_sizes); + pool_info.pPoolSizes = pool_sizes; + CALL_VK(vkCreateDescriptorPool(g_Device, &pool_info, g_Allocator, &g_DescriptorPool)); + } +} + +// 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) { + // Check for WSI support + VkBool32 res; + vkGetPhysicalDeviceSurfaceSupportKHR(g_PhysicalDevice, g_QueueFamily, surface, &res); + if (res != VK_TRUE) { + __android_log_print( + ANDROID_LOG_ERROR, + "Vulkan", + "No WSI support on physical device" + ); + + abort(); + } + + // Select Surface Format + const VkFormat requestSurfaceImageFormat[] = {VK_FORMAT_B8G8R8A8_UNORM, VK_FORMAT_R8G8B8A8_UNORM, VK_FORMAT_B8G8R8_UNORM, VK_FORMAT_R8G8B8_UNORM}; + const VkColorSpaceKHR requestSurfaceColorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR; + wd->Surface = surface; + wd->SurfaceFormat = ImGui_ImplVulkanH_SelectSurfaceFormat(g_PhysicalDevice, wd->Surface, requestSurfaceImageFormat, (size_t) IM_COUNTOF(requestSurfaceImageFormat), requestSurfaceColorSpace); + + // Select Present Mode +#ifdef APP_USE_UNLIMITED_FRAME_RATE + VkPresentModeKHR present_modes[] = { VK_PRESENT_MODE_MAILBOX_KHR, VK_PRESENT_MODE_IMMEDIATE_KHR, VK_PRESENT_MODE_FIFO_KHR }; +#else + VkPresentModeKHR present_modes[] = {VK_PRESENT_MODE_FIFO_KHR}; +#endif + wd->PresentMode = ImGui_ImplVulkanH_SelectPresentMode(g_PhysicalDevice, wd->Surface, &present_modes[0], IM_COUNTOF(present_modes)); + //__android_log_print(ANDROID_LOG_INFO, "ImGuiVulkan", "Selected PresentMode = %d\n", wd->PresentMode); + + // Create SwapChain, RenderPass, Framebuffer, etc. + IM_ASSERT(g_MinImageCount >= 2); + ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, wd, g_QueueFamily, g_Allocator, width, height, g_MinImageCount, 0); +} + +static void CleanupVulkan() { + vkDestroyDescriptorPool(g_Device, g_DescriptorPool, g_Allocator); + +#ifndef NDEBUG + // Remove the debug utils callback + auto vkDestroyDebugUtilsMessengerEXT = (PFN_vkDestroyDebugUtilsMessengerEXT) vkGetInstanceProcAddr(g_Instance, "vkDestroyDebugUtilsMessengerEXT"); + vkDestroyDebugUtilsMessengerEXT(g_Instance, g_DebugMessenger, g_Allocator); +#endif + + vkDestroyDevice(g_Device, g_Allocator); + vkDestroyInstance(g_Instance, g_Allocator); +} + +static void CleanupVulkanWindow(ImGui_ImplVulkanH_Window *wd) { + ImGui_ImplVulkanH_DestroyWindow(g_Instance, g_Device, wd, g_Allocator); + vkDestroySurfaceKHR(g_Instance, wd->Surface, g_Allocator); +} + +static void FrameRender(ImGui_ImplVulkanH_Window *wd, ImDrawData *draw_data) { + VkSemaphore image_acquired_semaphore = wd->FrameSemaphores[wd->SemaphoreIndex].ImageAcquiredSemaphore; + VkSemaphore render_complete_semaphore = wd->FrameSemaphores[wd->SemaphoreIndex].RenderCompleteSemaphore; + VkResult err = vkAcquireNextImageKHR(g_Device, wd->Swapchain, UINT64_MAX, image_acquired_semaphore, VK_NULL_HANDLE, &wd->FrameIndex); + if (err == VK_ERROR_OUT_OF_DATE_KHR || err == VK_SUBOPTIMAL_KHR) + g_SwapChainRebuild = true; + if (err == VK_ERROR_OUT_OF_DATE_KHR) + return; + if (err != VK_SUBOPTIMAL_KHR) + check_vk_result(err); + + ImGui_ImplVulkanH_Frame *fd = &wd->Frames[wd->FrameIndex]; + { + CALL_VK(vkWaitForFences(g_Device, 1, &fd->Fence, VK_TRUE, UINT64_MAX)); // wait indefinitely instead of periodically checking + CALL_VK(vkResetFences(g_Device, 1, &fd->Fence)); + } + { + CALL_VK(vkResetCommandPool(g_Device, fd->CommandPool, 0)); + VkCommandBufferBeginInfo info = {}; + info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO; + info.flags |= VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT; + CALL_VK(vkBeginCommandBuffer(fd->CommandBuffer, &info)); + } + { + VkRenderPassBeginInfo info = {}; + info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO; + info.renderPass = wd->RenderPass; + info.framebuffer = fd->Framebuffer; + info.renderArea.extent.width = wd->Width; + info.renderArea.extent.height = wd->Height; + info.clearValueCount = 1; + info.pClearValues = &wd->ClearValue; + vkCmdBeginRenderPass(fd->CommandBuffer, &info, VK_SUBPASS_CONTENTS_INLINE); + } + + // Record dear imgui primitives into command buffer + ImGui_ImplVulkan_RenderDrawData(draw_data, fd->CommandBuffer); + + // Submit command buffer + vkCmdEndRenderPass(fd->CommandBuffer); + { + VkPipelineStageFlags wait_stage = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT; + VkSubmitInfo info = {}; + info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO; + info.waitSemaphoreCount = 1; + info.pWaitSemaphores = &image_acquired_semaphore; + info.pWaitDstStageMask = &wait_stage; + info.commandBufferCount = 1; + info.pCommandBuffers = &fd->CommandBuffer; + info.signalSemaphoreCount = 1; + info.pSignalSemaphores = &render_complete_semaphore; + + CALL_VK(vkEndCommandBuffer(fd->CommandBuffer)); + CALL_VK(vkQueueSubmit(g_Queue, 1, &info, fd->Fence)); + } +} + +static void FramePresent(ImGui_ImplVulkanH_Window *wd) { + if (g_SwapChainRebuild) + return; + VkSemaphore render_complete_semaphore = wd->FrameSemaphores[wd->SemaphoreIndex].RenderCompleteSemaphore; + VkPresentInfoKHR info = {}; + info.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR; + info.waitSemaphoreCount = 1; + info.pWaitSemaphores = &render_complete_semaphore; + info.swapchainCount = 1; + info.pSwapchains = &wd->Swapchain; + info.pImageIndices = &wd->FrameIndex; + VkResult err = vkQueuePresentKHR(g_Queue, &info); + if (err == VK_ERROR_OUT_OF_DATE_KHR || err == VK_SUBOPTIMAL_KHR) + g_SwapChainRebuild = true; + if (err == VK_ERROR_OUT_OF_DATE_KHR) + return; + if (err != VK_SUBOPTIMAL_KHR) + check_vk_result(err); + wd->SemaphoreIndex = (wd->SemaphoreIndex + 1) % wd->SemaphoreCount; // Now we can use the next set of semaphores +} + +extern "C" { + +static void Init(struct android_app *app) { + if (g_Initialized) return; + + g_App = app; + ANativeWindow_acquire(app->window); + + ImVector extensions; + extensions.push_back(VK_KHR_SURFACE_EXTENSION_NAME); + extensions.push_back(VK_KHR_ANDROID_SURFACE_EXTENSION_NAME); + + SetupVulkan(extensions); + + // Create Window Surface + VkSurfaceKHR surface; + VkAndroidSurfaceCreateInfoKHR createInfo{ + .sType = VK_STRUCTURE_TYPE_ANDROID_SURFACE_CREATE_INFO_KHR, + .pNext = nullptr, + .flags = 0, + .window = app->window, + }; + CALL_VK(vkCreateAndroidSurfaceKHR(g_Instance, &createInfo, g_Allocator, &surface)); + + // Create Framebuffers + int w = ANativeWindow_getWidth(app->window); + int h = ANativeWindow_getHeight(app->window); + ImGui_ImplVulkanH_Window *wd = &g_MainWindowData; + SetupVulkanWindow(wd, surface, w, h); + + // Setup Dear ImGui context + IMGUI_CHECKVERSION(); + ImGui::CreateContext(); + ImGuiIO &io = ImGui::GetIO(); + + // Redirect loading/saving of .ini file to our location. + // Make sure 'g_IniFilename' persists while we use Dear ImGui. + g_IniFilename = std::string(app->activity->internalDataPath) + "/imgui.ini"; + io.IniFilename = g_IniFilename.c_str(); + + // Setup Dear ImGui style + ImGui::StyleColorsDark(); + //ImGui::StyleColorsLight(); + + // Setup scaling + float main_scale = AConfiguration_getDensity(app->config) / 160.0f; + ImGuiStyle &style = ImGui::GetStyle(); + style.ScaleAllSizes(main_scale); // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again) + style.FontScaleDpi = main_scale; // Set initial font scale. (in docking branch: using io.ConfigDpiScaleFonts=true automatically overrides this for every window depending on the current monitor) + + // Setup Platform/Renderer backends + ImGui_ImplAndroid_Init(app->window); + ImGui_ImplVulkan_InitInfo init_info = {}; + //init_info.ApiVersion = VK_API_VERSION_1_3; // Pass in your value of VkApplicationInfo::apiVersion, otherwise will default to header version. + init_info.Instance = g_Instance; + init_info.PhysicalDevice = g_PhysicalDevice; + init_info.Device = g_Device; + init_info.QueueFamily = g_QueueFamily; + init_info.Queue = g_Queue; + init_info.PipelineCache = g_PipelineCache; + init_info.DescriptorPool = g_DescriptorPool; + 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; + init_info.CheckVkResultFn = check_vk_result; + ImGui_ImplVulkan_Init(&init_info); + + // Load Fonts + // - If fonts are not explicitly loaded, Dear ImGui will select an embedded font: either AddFontDefaultVector() or AddFontDefaultBitmap(). + // This selection is based on (style.FontSizeBase * style.FontScaleMain * style.FontScaleDpi) reaching a small threshold. + // - You can load multiple fonts and use ImGui::PushFont()/PopFont() to select them. + // - If a file cannot be loaded, AddFont functions will return a nullptr. Please handle those errors in your code (e.g. use an assertion, display an error and quit). + // - Read 'docs/FONTS.md' for more instructions and details. + // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use FreeType for higher quality font rendering. + // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ ! + // - Android: The TTF files have to be placed into the assets/ directory (android/app/src/main/assets), we use our GetAssetData() helper to retrieve them. + //style.FontSizeBase = 20.0f; + //io.Fonts->AddFontDefaultVector(); + //io.Fonts->AddFontDefaultBitmap(); + + // Important: when calling AddFontFromMemoryTTF(), ownership of font_data is transferred by Dear ImGui by default (deleted is handled by Dear ImGui), unless we set FontDataOwnedByAtlas=false in ImFontConfig + //void* font_data; + //int font_data_size; + //ImFont* font; + //font_data_size = GetAssetData("segoeui.ttf", &font_data); + //font = io.Fonts->AddFontFromMemoryTTF(font_data, font_data_size); + //IM_ASSERT(font != nullptr); + //font_data_size = GetAssetData("DroidSans.ttf", &font_data); + //font = io.Fonts->AddFontFromMemoryTTF(font_data, font_data_size); + //IM_ASSERT(font != nullptr); + //font_data_size = GetAssetData("Roboto-Medium.ttf", &font_data); + //font = io.Fonts->AddFontFromMemoryTTF(font_data, font_data_size); + //IM_ASSERT(font != nullptr); + //font_data_size = GetAssetData("Cousine-Regular.ttf", &font_data); + //font = io.Fonts->AddFontFromMemoryTTF(font_data, font_data_size); + //IM_ASSERT(font != nullptr); + //font_data_size = GetAssetData("ArialUni.ttf", &font_data); + //font = io.Fonts->AddFontFromMemoryTTF(font_data, font_data_size); + //IM_ASSERT(font != nullptr); + + g_Initialized = true; +} + +static void Shutdown() { + if (!g_Initialized) + return; + + CALL_VK(vkDeviceWaitIdle(g_Device)); + ImGui_ImplVulkan_Shutdown(); + ImGui_ImplAndroid_Shutdown(); + ImGui::DestroyContext(); + + CleanupVulkanWindow(&g_MainWindowData); + CleanupVulkan(); + + ANativeWindow_release(g_App->window); + g_Initialized = false; +} + +static void handleAppCmd(struct android_app *app, int32_t appCmd) { + switch (appCmd) { + case APP_CMD_SAVE_STATE: + break; + case APP_CMD_INIT_WINDOW: + Init(app); + break; + case APP_CMD_TERM_WINDOW: + Shutdown(); + break; + case APP_CMD_GAINED_FOCUS: + case APP_CMD_LOST_FOCUS: + break; + } +} + +static int32_t handleInputEvent(struct android_app *app, AInputEvent *inputEvent) { + return ImGui_ImplAndroid_HandleInputEvent(inputEvent); +} + +/*! + * This the main entry point for a native activity + */ +void android_main(struct android_app *pApp) { + pApp->onAppCmd = handleAppCmd; + pApp->onInputEvent = handleInputEvent; + + // This sets up a typical game/event loop. It will run until the app is destroyed. + do { + // Process all pending events before running game logic. + bool done = false; + while (!done) { + // 0 is non-blocking. + int timeout = g_Initialized ? 0 : -1; + int events; + android_poll_source *pSource; + int result = ALooper_pollOnce(timeout, nullptr, &events, reinterpret_cast(&pSource)); + switch (result) { + case ALOOPER_POLL_TIMEOUT: + [[clang::fallthrough]]; + case ALOOPER_POLL_WAKE: + // No events occurred before the timeout or explicit wake. Stop checking for events. + done = true; + break; + case ALOOPER_EVENT_ERROR: + __android_log_print(ANDROID_LOG_INFO, "ImGuiVulkan", "ALooper_pollOnce returned an error"); + break; + case ALOOPER_POLL_CALLBACK: + break; + default: + if (pSource) { + pSource->process(pApp, pSource); + } + } + } + + if (g_Initialized) { + // Our state + // (we use static, which essentially makes the variable globals, as a convenience to keep the example code easy to follow) + static bool show_demo_window = true; + static bool show_another_window = false; + static ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f); + + // Poll and handle events (inputs, window resize, etc.) + // You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs. + // - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application, or clear/overwrite your copy of the mouse data. + // - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data. + // Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags. + // Process game input + + ImGuiIO &io = ImGui::GetIO(); + + // Poll Unicode characters via JNI + // FIXME: do not call this every frame because of JNI overhead + PollUnicodeChars(); + + // Open on-screen (soft) input if requested by Dear ImGui + static bool WantTextInputLast = false; + if (io.WantTextInput && !WantTextInputLast) + ShowSoftKeyboardInput(); + WantTextInputLast = io.WantTextInput; + + // Resize swap chain? + int fb_width = ANativeWindow_getWidth(pApp->window), fb_height = ANativeWindow_getHeight(pApp->window); + if (fb_width > 0 && fb_height > 0 && (g_SwapChainRebuild || g_MainWindowData.Width != fb_width || g_MainWindowData.Height != fb_height)) { + ImGui_ImplVulkan_SetMinImageCount(g_MinImageCount); + ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, &g_MainWindowData, g_QueueFamily, g_Allocator, fb_width, fb_height, g_MinImageCount, 0); + g_MainWindowData.FrameIndex = 0; + g_SwapChainRebuild = false; + } + + // Start the Dear ImGui frame + ImGui_ImplVulkan_NewFrame(); + ImGui_ImplAndroid_NewFrame(); + ImGui::NewFrame(); + + // 1. Show the big demo window (Most of the sample code is in ImGui::ShowDemoWindow()! You can browse its code to learn more about Dear ImGui!). + if (show_demo_window) + ImGui::ShowDemoWindow(&show_demo_window); + + // 2. Show a simple window that we create ourselves. We use a Begin/End pair to create a named window. + { + static float f = 0.0f; + static int counter = 0; + + ImGui::Begin("Hello, world!"); // Create a window called "Hello, world!" and append into it. + + ImGui::Text("This is some useful text."); // Display some text (you can use a format strings too) + ImGui::Checkbox("Demo Window", &show_demo_window); // Edit bools storing our window open/close state + ImGui::Checkbox("Another Window", &show_another_window); + + ImGui::SliderFloat("float", &f, 0.0f, 1.0f); // Edit 1 float using a slider from 0.0f to 1.0f + ImGui::ColorEdit3("clear color", (float *) &clear_color); // Edit 3 floats representing a color + + if (ImGui::Button("Button")) // Buttons return true when clicked (most widgets return true when edited/activated) + counter++; + ImGui::SameLine(); + ImGui::Text("counter = %d", counter); + + ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / io.Framerate, io.Framerate); + ImGui::End(); + } + + // 3. Show another simple window. + if (show_another_window) { + ImGui::Begin("Another Window", &show_another_window); // Pass a pointer to our bool variable (the window will have a closing button that will clear the bool when clicked) + ImGui::Text("Hello from another window!"); + if (ImGui::Button("Close Me")) + show_another_window = false; + ImGui::End(); + } + + // Rendering + ImGui::Render(); + ImGui_ImplVulkanH_Window *wd = &g_MainWindowData; + ImDrawData *draw_data = ImGui::GetDrawData(); + const bool is_minimized = (draw_data->DisplaySize.x <= 0.0f || draw_data->DisplaySize.y <= 0.0f); + if (!is_minimized) { + wd->ClearValue.color.float32[0] = clear_color.x * clear_color.w; + wd->ClearValue.color.float32[1] = clear_color.y * clear_color.w; + wd->ClearValue.color.float32[2] = clear_color.z * clear_color.w; + wd->ClearValue.color.float32[3] = clear_color.w; + FrameRender(wd, draw_data); + FramePresent(wd); + } + } + } while (!pApp->destroyRequested); + + // shutdown() should have been called already while processing the + // app command APP_CMD_TERM_WINDOW. But we play save here + if (g_Initialized) + Shutdown(); +} +} + +// Helper functions + +// Unfortunately, there is no way to show the on-screen input from native code. +// Therefore, we call ShowSoftKeyboardInput() of the main activity implemented in MainActivity.kt via JNI. +static int ShowSoftKeyboardInput() { + JavaVM *java_vm = g_App->activity->vm; + JNIEnv *java_env = nullptr; + + jint jni_return = java_vm->GetEnv((void **) &java_env, JNI_VERSION_1_6); + if (jni_return == JNI_ERR) + return -1; + + jni_return = java_vm->AttachCurrentThread(&java_env, nullptr); + if (jni_return != JNI_OK) + return -2; + + jclass native_activity_clazz = java_env->GetObjectClass(g_App->activity->clazz); + if (native_activity_clazz == nullptr) + return -3; + + jmethodID method_id = java_env->GetMethodID(native_activity_clazz, "showSoftInput", "()V"); + if (method_id == nullptr) + return -4; + + java_env->CallVoidMethod(g_App->activity->clazz, method_id); + + jni_return = java_vm->DetachCurrentThread(); + if (jni_return != JNI_OK) + return -5; + + return 0; +} + +// Unfortunately, the native KeyEvent implementation has no getUnicodeChar() function. +// Therefore, we implement the processing of KeyEvents in MainActivity.kt and poll +// the resulting Unicode characters here via JNI and send them to Dear ImGui. +static int PollUnicodeChars() { + JavaVM *java_vm = g_App->activity->vm; + JNIEnv *java_env = nullptr; + + jint jni_return = java_vm->GetEnv((void **) &java_env, JNI_VERSION_1_6); + if (jni_return == JNI_ERR) + return -1; + + jni_return = java_vm->AttachCurrentThread(&java_env, nullptr); + if (jni_return != JNI_OK) + return -2; + + jclass native_activity_clazz = java_env->GetObjectClass(g_App->activity->clazz); + if (native_activity_clazz == nullptr) + return -3; + + jmethodID method_id = java_env->GetMethodID(native_activity_clazz, "pollUnicodeChar", "()I"); + if (method_id == nullptr) + return -4; + + // Send the actual characters to Dear ImGui + ImGuiIO &io = ImGui::GetIO(); + jint unicode_character; + while ((unicode_character = java_env->CallIntMethod(g_App->activity->clazz, method_id)) != 0) + io.AddInputCharacter(unicode_character); + + jni_return = java_vm->DetachCurrentThread(); + if (jni_return != JNI_OK) + return -5; + + return 0; +} + +// Helper to retrieve data placed into the assets/ directory (android/app/src/main/assets) +static int GetAssetData(const char *filename, void **outData) { + int num_bytes = 0; + AAsset *asset_descriptor = AAssetManager_open(g_App->activity->assetManager, filename, AASSET_MODE_BUFFER); + if (asset_descriptor) { + num_bytes = AAsset_getLength(asset_descriptor); + *outData = IM_ALLOC(num_bytes); + int64_t num_bytes_read = AAsset_read(asset_descriptor, *outData, num_bytes); + AAsset_close(asset_descriptor); + IM_ASSERT(num_bytes_read == num_bytes); + } + return num_bytes; +} diff --git a/examples/example_android_vulkan/app/src/main/java/imgui/example/android/vulkan/MainActivity.kt b/examples/example_android_vulkan/app/src/main/java/imgui/example/android/vulkan/MainActivity.kt new file mode 100644 index 000000000..b0c77317e --- /dev/null +++ b/examples/example_android_vulkan/app/src/main/java/imgui/example/android/vulkan/MainActivity.kt @@ -0,0 +1,51 @@ +package imgui.example.android.vulkan + +import android.app.NativeActivity +import android.view.KeyEvent +import android.view.WindowInsets +import android.view.inputmethod.InputMethodManager +import androidx.core.view.WindowCompat +import androidx.core.view.WindowInsetsControllerCompat +import java.util.concurrent.LinkedBlockingQueue + +class MainActivity : NativeActivity() { + + fun showSoftInput() { + val inputMethodManager = getSystemService(INPUT_METHOD_SERVICE) as InputMethodManager + inputMethodManager.showSoftInput(this.window.decorView, 0) + } + + fun hideSoftInput() { + val inputMethodManager = getSystemService(INPUT_METHOD_SERVICE) as InputMethodManager + inputMethodManager.hideSoftInputFromWindow(this.window.decorView.windowToken, 0) + } + + // Queue for the Unicode characters to be polled from native code (via pollUnicodeChar()) + private var unicodeCharacterQueue: LinkedBlockingQueue = LinkedBlockingQueue() + + // We assume dispatchKeyEvent() of the NativeActivity is actually called for every + // KeyEvent and not consumed by any View before it reaches here + override fun dispatchKeyEvent(event: KeyEvent): Boolean { + if (event.action == KeyEvent.ACTION_DOWN) { + unicodeCharacterQueue.offer(event.getUnicodeChar(event.metaState)) + } + return super.dispatchKeyEvent(event) + } + + fun pollUnicodeChar(): Int { + return unicodeCharacterQueue.poll() ?: 0 + } + + override fun onWindowFocusChanged(hasFocus: Boolean) { + super.onWindowFocusChanged(hasFocus) + if (hasFocus) hideSystemUi() + } + + private fun hideSystemUi() { + WindowCompat.setDecorFitsSystemWindows(window, false) + WindowCompat.getInsetsController(window, window.decorView).apply { + systemBarsBehavior = WindowInsetsControllerCompat.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE + hide(WindowInsets.Type.systemBars()) + } + } +} diff --git a/examples/example_android_vulkan/app/src/main/jniLibs/arm64-v8a/libVkLayer_khronos_validation.so b/examples/example_android_vulkan/app/src/main/jniLibs/arm64-v8a/libVkLayer_khronos_validation.so new file mode 100644 index 000000000..60983e850 Binary files /dev/null and b/examples/example_android_vulkan/app/src/main/jniLibs/arm64-v8a/libVkLayer_khronos_validation.so differ diff --git a/examples/example_android_vulkan/app/src/main/jniLibs/armeabi-v7a/libVkLayer_khronos_validation.so b/examples/example_android_vulkan/app/src/main/jniLibs/armeabi-v7a/libVkLayer_khronos_validation.so new file mode 100644 index 000000000..5dbffd513 Binary files /dev/null and b/examples/example_android_vulkan/app/src/main/jniLibs/armeabi-v7a/libVkLayer_khronos_validation.so differ diff --git 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b/examples/example_android_vulkan/app/src/main/res/drawable/ic_launcher_background.xml @@ -0,0 +1,170 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/examples/example_android_vulkan/app/src/main/res/drawable/ic_launcher_foreground.xml b/examples/example_android_vulkan/app/src/main/res/drawable/ic_launcher_foreground.xml new file mode 100644 index 000000000..7706ab9e6 --- /dev/null +++ b/examples/example_android_vulkan/app/src/main/res/drawable/ic_launcher_foreground.xml @@ -0,0 +1,30 @@ + + + + + + + + + + + diff --git a/examples/example_android_vulkan/app/src/main/res/mipmap-anydpi/ic_launcher.xml b/examples/example_android_vulkan/app/src/main/res/mipmap-anydpi/ic_launcher.xml new file mode 100644 index 000000000..b3e26b4c6 --- /dev/null +++ b/examples/example_android_vulkan/app/src/main/res/mipmap-anydpi/ic_launcher.xml @@ -0,0 +1,6 @@ + + + + + + diff --git a/examples/example_android_vulkan/app/src/main/res/mipmap-anydpi/ic_launcher_round.xml b/examples/example_android_vulkan/app/src/main/res/mipmap-anydpi/ic_launcher_round.xml new file mode 100644 index 000000000..b3e26b4c6 --- /dev/null +++ b/examples/example_android_vulkan/app/src/main/res/mipmap-anydpi/ic_launcher_round.xml @@ -0,0 +1,6 @@ + + + + + + diff --git a/examples/example_android_vulkan/app/src/main/res/mipmap-hdpi/ic_launcher.webp b/examples/example_android_vulkan/app/src/main/res/mipmap-hdpi/ic_launcher.webp new file mode 100644 index 000000000..c209e78ec Binary files /dev/null and b/examples/example_android_vulkan/app/src/main/res/mipmap-hdpi/ic_launcher.webp differ diff --git a/examples/example_android_vulkan/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp b/examples/example_android_vulkan/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp new file mode 100644 index 000000000..b2dfe3d1b Binary files /dev/null and b/examples/example_android_vulkan/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp differ diff --git 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file mode 100644 index 000000000..ca1931bca --- /dev/null +++ b/examples/example_android_vulkan/app/src/main/res/values/colors.xml @@ -0,0 +1,10 @@ + + + #FFBB86FC + #FF6200EE + #FF3700B3 + #FF03DAC5 + #FF018786 + #FF000000 + #FFFFFFFF + diff --git a/examples/example_android_vulkan/app/src/main/res/values/strings.xml b/examples/example_android_vulkan/app/src/main/res/values/strings.xml new file mode 100644 index 000000000..665cf08bb --- /dev/null +++ b/examples/example_android_vulkan/app/src/main/res/values/strings.xml @@ -0,0 +1,3 @@ + + ImGuiExample Vulkan + diff --git a/examples/example_android_vulkan/app/src/main/res/values/themes.xml b/examples/example_android_vulkan/app/src/main/res/values/themes.xml new file mode 100644 index 000000000..ef075267b --- /dev/null +++ b/examples/example_android_vulkan/app/src/main/res/values/themes.xml @@ -0,0 +1,4 @@ + + +