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Examples: Vulkan: rework extensions setup + enable some to avoid validation layer errors. (#6109, #6172, #6101)
Enable VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME, VK_KHR_PORTABILITY_ENUMERATION_EXTENSION_NAME, VK_INSTANCE_CREATE_ENUMERATE_PORTABILITY_BIT_KHR
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@ -94,6 +94,9 @@ Other changes:
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(#6314) [@PathogenDavid]
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- Backends: WebGPU: Align buffers. Use WGSL shaders instead of SPIR-V. Add gamma uniform. (#6188) [@eliemichel]
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- Backends: WebGPU: Reorganized to store data in io.BackendRendererUserData like other backends.
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- Examples: Vulkan: Fixed validation errors with newer VulkanSDK by explicitely querying and enabling
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"VK_KHR_get_physical_device_properties2", "VK_KHR_portability_enumeration", and
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VK_INSTANCE_CREATE_ENUMERATE_PORTABILITY_BIT_KHR. (#6109, #6172, #6101)
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- Examples: Windows: Added 'misc/debuggers/imgui.natstepfilter' file to all Visual Studio projects,
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now that VS 2022 17.6 Preview 2 support adding Debug Step Filter spec files into projects.
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- Examples: SDL3: Updated for latest WIP SDL3 branch. (#6243)
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@ -68,7 +68,15 @@ static VKAPI_ATTR VkBool32 VKAPI_CALL debug_report(VkDebugReportFlagsEXT flags,
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}
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#endif // IMGUI_VULKAN_DEBUG_REPORT
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static void SetupVulkan(const char** extensions, uint32_t extensions_count)
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static bool IsExtensionAvailable(const ImVector<VkExtensionProperties>& properties, const char* extension)
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{
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for (const VkExtensionProperties& p : properties)
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if (strcmp(p.extensionName, extension) == 0)
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return true;
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return false;
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}
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static void SetupVulkan(ImVector<const char*> extensions)
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{
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VkResult err;
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@ -76,31 +84,44 @@ static void SetupVulkan(const char** extensions, uint32_t extensions_count)
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{
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VkInstanceCreateInfo create_info = {};
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create_info.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
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create_info.enabledExtensionCount = extensions_count;
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create_info.ppEnabledExtensionNames = extensions;
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#ifdef IMGUI_VULKAN_DEBUG_REPORT
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// Enumerate available extensions
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uint32_t properties_count;
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ImVector<VkExtensionProperties> properties;
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vkEnumerateInstanceExtensionProperties(nullptr, &properties_count, nullptr);
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properties.resize(properties_count);
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err = vkEnumerateInstanceExtensionProperties(nullptr, &properties_count, properties.Data);
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check_vk_result(err);
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// Enable required extensions
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if (IsExtensionAvailable(properties, VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME))
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extensions.push_back(VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME);
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#ifdef VK_KHR_PORTABILITY_ENUMERATION_EXTENSION_NAME
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if (IsExtensionAvailable(properties, VK_KHR_PORTABILITY_ENUMERATION_EXTENSION_NAME))
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{
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extensions.push_back(VK_KHR_PORTABILITY_ENUMERATION_EXTENSION_NAME);
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create_info.flags |= VK_INSTANCE_CREATE_ENUMERATE_PORTABILITY_BIT_KHR;
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}
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#endif
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// Enabling validation layers
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#ifdef IMGUI_VULKAN_DEBUG_REPORT
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const char* layers[] = { "VK_LAYER_KHRONOS_validation" };
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create_info.enabledLayerCount = 1;
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create_info.ppEnabledLayerNames = layers;
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// Enable debug report extension (we need additional storage, so we duplicate the user array to add our new extension to it)
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const char** extensions_ext = (const char**)malloc(sizeof(const char*) * (extensions_count + 1));
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memcpy(extensions_ext, extensions, extensions_count * sizeof(const char*));
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extensions_ext[extensions_count] = "VK_EXT_debug_report";
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create_info.enabledExtensionCount = extensions_count + 1;
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create_info.ppEnabledExtensionNames = extensions_ext;
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extensions.push_back("VK_EXT_debug_report");
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#endif
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// Create Vulkan Instance
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create_info.enabledExtensionCount = (uint32_t)extensions.size();
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create_info.ppEnabledExtensionNames = extensions.Data;
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err = vkCreateInstance(&create_info, g_Allocator, &g_Instance);
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check_vk_result(err);
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free(extensions_ext);
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// Get the function pointer (required for any extensions)
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auto vkCreateDebugReportCallbackEXT = (PFN_vkCreateDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkCreateDebugReportCallbackEXT");
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IM_ASSERT(vkCreateDebugReportCallbackEXT != nullptr);
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// Setup the debug report callback
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#ifdef IMGUI_VULKAN_DEBUG_REPORT
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auto vkCreateDebugReportCallbackEXT = (PFN_vkCreateDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkCreateDebugReportCallbackEXT");
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IM_ASSERT(vkCreateDebugReportCallbackEXT != nullptr);
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VkDebugReportCallbackCreateInfoEXT debug_report_ci = {};
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debug_report_ci.sType = VK_STRUCTURE_TYPE_DEBUG_REPORT_CALLBACK_CREATE_INFO_EXT;
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debug_report_ci.flags = VK_DEBUG_REPORT_ERROR_BIT_EXT | VK_DEBUG_REPORT_WARNING_BIT_EXT | VK_DEBUG_REPORT_PERFORMANCE_WARNING_BIT_EXT;
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@ -108,11 +129,6 @@ static void SetupVulkan(const char** extensions, uint32_t extensions_count)
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debug_report_ci.pUserData = nullptr;
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err = vkCreateDebugReportCallbackEXT(g_Instance, &debug_report_ci, g_Allocator, &g_DebugReport);
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check_vk_result(err);
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#else
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// Create Vulkan Instance without any debug feature
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err = vkCreateInstance(&create_info, g_Allocator, &g_Instance);
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check_vk_result(err);
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IM_UNUSED(g_DebugReport);
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#endif
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}
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@ -367,9 +383,13 @@ int main(int, char**)
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printf("GLFW: Vulkan Not Supported\n");
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return 1;
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}
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ImVector<const char*> extensions;
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uint32_t extensions_count = 0;
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const char** extensions = glfwGetRequiredInstanceExtensions(&extensions_count);
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SetupVulkan(extensions, extensions_count);
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const char** glfw_extensions = glfwGetRequiredInstanceExtensions(&extensions_count);
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for (uint32_t i = 0; i < extensions_count; i++)
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extensions.push_back(glfw_extensions[i]);
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SetupVulkan(extensions);
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// Create Window Surface
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VkSurfaceKHR surface;
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@ -56,7 +56,15 @@ static VKAPI_ATTR VkBool32 VKAPI_CALL debug_report(VkDebugReportFlagsEXT flags,
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}
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#endif // IMGUI_VULKAN_DEBUG_REPORT
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static void SetupVulkan(const char** extensions, uint32_t extensions_count)
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static bool IsExtensionAvailable(const ImVector<VkExtensionProperties>& properties, const char* extension)
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{
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for (const VkExtensionProperties& p : properties)
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if (strcmp(p.extensionName, extension) == 0)
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return true;
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return false;
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}
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static void SetupVulkan(ImVector<const char*> extensions)
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{
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VkResult err;
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@ -64,31 +72,44 @@ static void SetupVulkan(const char** extensions, uint32_t extensions_count)
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{
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VkInstanceCreateInfo create_info = {};
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create_info.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
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create_info.enabledExtensionCount = extensions_count;
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create_info.ppEnabledExtensionNames = extensions;
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#ifdef IMGUI_VULKAN_DEBUG_REPORT
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// Enumerate available extensions
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uint32_t properties_count;
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ImVector<VkExtensionProperties> properties;
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vkEnumerateInstanceExtensionProperties(nullptr, &properties_count, nullptr);
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properties.resize(properties_count);
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err = vkEnumerateInstanceExtensionProperties(nullptr, &properties_count, properties.Data);
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check_vk_result(err);
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// Enable required extensions
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if (IsExtensionAvailable(properties, VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME))
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extensions.push_back(VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME);
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#ifdef VK_KHR_PORTABILITY_ENUMERATION_EXTENSION_NAME
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if (IsExtensionAvailable(properties, VK_KHR_PORTABILITY_ENUMERATION_EXTENSION_NAME))
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{
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extensions.push_back(VK_KHR_PORTABILITY_ENUMERATION_EXTENSION_NAME);
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create_info.flags |= VK_INSTANCE_CREATE_ENUMERATE_PORTABILITY_BIT_KHR;
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}
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#endif
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// Enabling validation layers
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#ifdef IMGUI_VULKAN_DEBUG_REPORT
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const char* layers[] = { "VK_LAYER_KHRONOS_validation" };
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create_info.enabledLayerCount = 1;
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create_info.ppEnabledLayerNames = layers;
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// Enable debug report extension (we need additional storage, so we duplicate the user array to add our new extension to it)
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const char** extensions_ext = (const char**)malloc(sizeof(const char*) * (extensions_count + 1));
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memcpy(extensions_ext, extensions, extensions_count * sizeof(const char*));
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extensions_ext[extensions_count] = "VK_EXT_debug_report";
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create_info.enabledExtensionCount = extensions_count + 1;
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create_info.ppEnabledExtensionNames = extensions_ext;
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extensions.push_back("VK_EXT_debug_report");
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#endif
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// Create Vulkan Instance
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create_info.enabledExtensionCount = (uint32_t)extensions.size();
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create_info.ppEnabledExtensionNames = extensions.Data;
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err = vkCreateInstance(&create_info, g_Allocator, &g_Instance);
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check_vk_result(err);
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free(extensions_ext);
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// Get the function pointer (required for any extensions)
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auto vkCreateDebugReportCallbackEXT = (PFN_vkCreateDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkCreateDebugReportCallbackEXT");
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IM_ASSERT(vkCreateDebugReportCallbackEXT != nullptr);
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// Setup the debug report callback
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#ifdef IMGUI_VULKAN_DEBUG_REPORT
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auto vkCreateDebugReportCallbackEXT = (PFN_vkCreateDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkCreateDebugReportCallbackEXT");
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IM_ASSERT(vkCreateDebugReportCallbackEXT != nullptr);
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VkDebugReportCallbackCreateInfoEXT debug_report_ci = {};
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debug_report_ci.sType = VK_STRUCTURE_TYPE_DEBUG_REPORT_CALLBACK_CREATE_INFO_EXT;
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debug_report_ci.flags = VK_DEBUG_REPORT_ERROR_BIT_EXT | VK_DEBUG_REPORT_WARNING_BIT_EXT | VK_DEBUG_REPORT_PERFORMANCE_WARNING_BIT_EXT;
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@ -96,11 +117,6 @@ static void SetupVulkan(const char** extensions, uint32_t extensions_count)
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debug_report_ci.pUserData = nullptr;
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err = vkCreateDebugReportCallbackEXT(g_Instance, &debug_report_ci, g_Allocator, &g_DebugReport);
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check_vk_result(err);
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#else
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// Create Vulkan Instance without any debug feature
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err = vkCreateInstance(&create_info, g_Allocator, &g_Instance);
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check_vk_result(err);
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IM_UNUSED(g_DebugReport);
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#endif
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}
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@ -358,12 +374,13 @@ int main(int, char**)
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// Create window with Vulkan graphics context
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SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_VULKAN | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI);
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SDL_Window* window = SDL_CreateWindow("Dear ImGui SDL2+Vulkan example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, window_flags);
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ImVector<const char*> extensions;
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uint32_t extensions_count = 0;
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SDL_Vulkan_GetInstanceExtensions(window, &extensions_count, nullptr);
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const char** extensions = new const char*[extensions_count];
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SDL_Vulkan_GetInstanceExtensions(window, &extensions_count, extensions);
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SetupVulkan(extensions, extensions_count);
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delete[] extensions;
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extensions.resize(extensions_count);
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SDL_Vulkan_GetInstanceExtensions(window, &extensions_count, extensions.Data);
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SetupVulkan(extensions);
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// Create Window Surface
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VkSurfaceKHR surface;
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