+#include <stdexcept>
+#include <vector>
+#define VK_USE_PLATFORM_XLIB_KHR
+#include <vulkan/vulkan.h>
+#include <msp/core/application.h>
+#include <msp/io/print.h>
+#include "display_private.h"
+#include "vulkancontext.h"
+#include "vulkancontext_platform.h"
+#include "window_private.h"
+
+using namespace std;
+
+namespace Msp {
+namespace Graphics {
+
+string vulkan_error::get_error_message(unsigned code)
+{
+ switch(static_cast<VkResult>(code))
+ {
+ case VK_SUCCESS: return "success";
+ case VK_NOT_READY: return "not ready";
+ case VK_TIMEOUT: return "timeout";
+ case VK_EVENT_SET: return "event set";
+ case VK_EVENT_RESET: return "event reset";
+ case VK_INCOMPLETE: return "incomplete";
+ case VK_ERROR_OUT_OF_HOST_MEMORY: return "out of host memory";
+ case VK_ERROR_OUT_OF_DEVICE_MEMORY: return "out of device memory";
+ case VK_ERROR_INITIALIZATION_FAILED: return "initialization failed";
+ case VK_ERROR_DEVICE_LOST: return "device lost";
+ case VK_ERROR_MEMORY_MAP_FAILED: return "memory map failed";
+ case VK_ERROR_LAYER_NOT_PRESENT: return "layer not present";
+ case VK_ERROR_EXTENSION_NOT_PRESENT: return "extension not present";
+ case VK_ERROR_FEATURE_NOT_PRESENT: return "feature not present";
+ case VK_ERROR_INCOMPATIBLE_DRIVER: return "incompatible driver";
+ case VK_ERROR_TOO_MANY_OBJECTS: return "too many objects";
+ case VK_ERROR_FORMAT_NOT_SUPPORTED: return "format not supported";
+ case VK_ERROR_FRAGMENTED_POOL: return "fragmented pool";
+ case VK_ERROR_UNKNOWN: return "unknown";
+ case VK_ERROR_OUT_OF_POOL_MEMORY: return "out of pool memory";
+ case VK_ERROR_INVALID_EXTERNAL_HANDLE: return "invalidernal handle";
+ case VK_ERROR_FRAGMENTATION: return "fragmentation";
+ case VK_ERROR_INVALID_OPAQUE_CAPTURE_ADDRESS: return "invalid opaque capture address";
+ case VK_ERROR_SURFACE_LOST_KHR: return "surface lost";
+ case VK_ERROR_NATIVE_WINDOW_IN_USE_KHR: return "native window in use";
+ case VK_SUBOPTIMAL_KHR: return "suboptimal";
+ case VK_ERROR_OUT_OF_DATE_KHR: return "out of date";
+ case VK_ERROR_INCOMPATIBLE_DISPLAY_KHR: return "incompatible display";
+ case VK_ERROR_VALIDATION_FAILED_EXT: return "validation failed";
+ case VK_ERROR_INVALID_SHADER_NV: return "invalid shader";
+ case VK_ERROR_INVALID_DRM_FORMAT_MODIFIER_PLANE_LAYOUT_EXT: return "invalid drm format modifier plane layout";
+ case VK_ERROR_NOT_PERMITTED_EXT: return "not permitted";
+ case VK_ERROR_FULL_SCREEN_EXCLUSIVE_MODE_LOST_EXT: return "full screen exclusive mode lost";
+ case VK_THREAD_IDLE_KHR: return "thread idle";
+ case VK_THREAD_DONE_KHR: return "thread done";
+ case VK_OPERATION_DEFERRED_KHR: return "operation deferred";
+ case VK_OPERATION_NOT_DEFERRED_KHR: return "operation not deferred";
+ case VK_PIPELINE_COMPILE_REQUIRED_EXT: return "pipeline compile required";
+ default: return format("VkResult(%d)", code);
+ }
+}
+
+VulkanOptions::VulkanOptions():
+ enable_validation(false),
+ enable_debug_report(false)
+{ }
+
+
+void VulkanContext::platform_init(const VulkanOptions &opts)
+{
+ priv = new Private;
+ VulkanFunctions &f = priv->functions;
+
+ try
+ {
+ f.vkCreateInstance = get_function<PFN_vkCreateInstance>("vkCreateInstance");
+
+ vector<const char *> layers;
+ if(opts.enable_validation)
+ layers.push_back("VK_LAYER_KHRONOS_validation");
+
+ vector<const char *> extensions;
+ extensions.push_back("VK_KHR_surface");
+ extensions.push_back("VK_KHR_xlib_surface");
+ extensions.push_back("VK_EXT_debug_utils");
+ if(opts.enable_debug_report)
+ extensions.push_back("VK_EXT_debug_report");
+
+ VkApplicationInfo app_info = { };
+ app_info.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
+ app_info.pApplicationName = Application::get_name().c_str();
+ app_info.pEngineName = "MSP";
+ app_info.apiVersion = (1<<22)|(2<<12);
+
+ VkInstanceCreateInfo instance_create_info = { };
+ instance_create_info.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
+ instance_create_info.pApplicationInfo = &app_info;
+ instance_create_info.enabledLayerCount = layers.size();
+ instance_create_info.ppEnabledLayerNames = layers.data();
+ instance_create_info.enabledExtensionCount = extensions.size();
+ instance_create_info.ppEnabledExtensionNames = extensions.data();
+
+ VkResult result = f.vkCreateInstance(&instance_create_info, 0, &priv->instance);
+ if(result!=VK_SUCCESS)
+ throw vulkan_error(result, "vkCreateInstance");
+
+ f.vkDestroyInstance = get_function<PFN_vkDestroyInstance>("vkDestroyInstance");
+ f.vkEnumeratePhysicalDevices = get_function<PFN_vkEnumeratePhysicalDevices>("vkEnumeratePhysicalDevices");
+ f.vkGetPhysicalDeviceQueueFamilyProperties = get_function<PFN_vkGetPhysicalDeviceQueueFamilyProperties>("vkGetPhysicalDeviceQueueFamilyProperties");
+ f.vkGetPhysicalDeviceSurfaceSupport = get_function<PFN_vkGetPhysicalDeviceSurfaceSupportKHR>("vkGetPhysicalDeviceSurfaceSupportKHR");
+ f.vkCreateDevice = get_function<PFN_vkCreateDevice>("vkCreateDevice");
+ f.vkDestroyDevice = get_function<PFN_vkDestroyDevice>("vkDestroyDevice");
+ f.vkGetDeviceQueue = get_function<PFN_vkGetDeviceQueue>("vkGetDeviceQueue");
+ f.vkCreateXlibSurface = get_function<PFN_vkCreateXlibSurfaceKHR>("vkCreateXlibSurfaceKHR");
+ f.vkDestroySurface = get_function<PFN_vkDestroySurfaceKHR>("vkDestroySurfaceKHR");
+ f.vkCreateDebugReportCallback = get_function<PFN_vkCreateDebugReportCallbackEXT>("vkCreateDebugReportCallbackEXT");
+ f.vkDestroyDebugReportCallback = get_function<PFN_vkDestroyDebugReportCallbackEXT>("vkDestroyDebugReportCallbackEXT");
+
+ if(opts.enable_debug_report)
+ {
+ VkDebugReportCallbackCreateInfoEXT debug_report_create_info = { };
+ debug_report_create_info.sType = VK_STRUCTURE_TYPE_DEBUG_REPORT_CALLBACK_CREATE_INFO_EXT;
+ debug_report_create_info.flags = VK_DEBUG_REPORT_WARNING_BIT_EXT|VK_DEBUG_REPORT_ERROR_BIT_EXT|VK_DEBUG_REPORT_PERFORMANCE_WARNING_BIT_EXT;
+ debug_report_create_info.pfnCallback = &Private::debug_report_func;
+ debug_report_create_info.pUserData = this;
+
+ result = f.vkCreateDebugReportCallback(priv->instance, &debug_report_create_info, 0, &priv->debug_report_callback);
+ if(result!=VK_SUCCESS)
+ throw vulkan_error(result, "vkCreateDebugReportCallback");
+ }
+ else
+ priv->debug_report_callback = 0;
+
+ VkXlibSurfaceCreateInfoKHR surface_create_info = { };
+ surface_create_info.sType = VK_STRUCTURE_TYPE_XLIB_SURFACE_CREATE_INFO_KHR;
+ surface_create_info.dpy = display.get_private().display;
+ surface_create_info.window = window.get_private().window;
+
+ result = f.vkCreateXlibSurface(priv->instance, &surface_create_info, 0, &priv->surface);
+ if(result!=VK_SUCCESS)
+ throw vulkan_error(result, "vkCreateXlibSurface");
+
+ unsigned n_phys_devices = 0;
+ result = f.vkEnumeratePhysicalDevices(priv->instance, &n_phys_devices, 0);
+ if(result!=VK_SUCCESS)
+ throw vulkan_error(result, "vkEnumeratePhysicalDevices");
+ else if(!n_phys_devices)
+ throw runtime_error("no physical device found");
+ vector<VkPhysicalDevice> phys_devices(n_phys_devices);
+ result = f.vkEnumeratePhysicalDevices(priv->instance, &n_phys_devices, &phys_devices[0]);
+ if(result!=VK_SUCCESS)
+ throw vulkan_error(result, "vkEnumeratePhysicalDevices");
+
+ priv->physical_device = 0;
+ unsigned gfx_queue_index = 0;
+ for(unsigned i=0; i<n_phys_devices; ++i)
+ {
+ VkPhysicalDevice phys_device = phys_devices[i];
+
+ unsigned n_queue_families = 0;
+ f.vkGetPhysicalDeviceQueueFamilyProperties(phys_device, &n_queue_families, 0);
+ vector<VkQueueFamilyProperties> queue_family_props(n_queue_families);
+ f.vkGetPhysicalDeviceQueueFamilyProperties(phys_device, &n_queue_families, queue_family_props.data());
+
+ for(; gfx_queue_index<n_queue_families; ++gfx_queue_index)
+ if((queue_family_props[gfx_queue_index].queueFlags&VK_QUEUE_GRAPHICS_BIT))
+ break;
+
+ if(gfx_queue_index>=n_queue_families)
+ continue;
+
+ VkBool32 supported = VK_FALSE;
+ result = f.vkGetPhysicalDeviceSurfaceSupport(phys_device, gfx_queue_index, priv->surface, &supported);
+ if(result!=VK_SUCCESS)
+ continue;
+
+ if(supported)
+ priv->physical_device = phys_devices[0];
+ }
+
+ if(!priv->physical_device)
+ throw runtime_error("no usable physical devices found");
+
+ priv->graphics_queue_family = gfx_queue_index;
+
+ float queue_priority = 1.0f;
+ VkDeviceQueueCreateInfo queue_create_info = { };
+ queue_create_info.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
+ queue_create_info.queueFamilyIndex = gfx_queue_index;
+ queue_create_info.queueCount = 1;
+ queue_create_info.pQueuePriorities = &queue_priority;
+
+ extensions.clear();
+ extensions.push_back("VK_KHR_swapchain");
+
+ VkDeviceCreateInfo device_create_info = { };
+ device_create_info.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
+ device_create_info.queueCreateInfoCount = 1;
+ device_create_info.pQueueCreateInfos = &queue_create_info;
+ device_create_info.enabledExtensionCount = extensions.size();
+ device_create_info.ppEnabledExtensionNames = extensions.data();
+
+ result = f.vkCreateDevice(priv->physical_device, &device_create_info, 0, &priv->device);
+ if(result!=VK_SUCCESS)
+ throw vulkan_error(result, "vkCreateDevice");
+
+ f.vkGetDeviceQueue(priv->device, gfx_queue_index, 0, &priv->graphics_queue);
+ }
+ catch(...)
+ {
+ if(priv->device)
+ f.vkDestroyDevice(priv->device, 0);
+ if(priv->surface)
+ f.vkDestroySurface(priv->instance, priv->surface, 0);
+ if(priv->debug_report_callback)
+ f.vkDestroyDebugReportCallback(priv->instance, priv->debug_report_callback, 0);
+ if(priv->instance)
+ f.vkDestroyInstance(priv->instance, 0);
+ delete priv;
+ throw;
+ }
+}
+
+VulkanContext::~VulkanContext()
+{
+ const VulkanFunctions &f = priv->functions;
+ f.vkDestroyDevice(priv->device, 0);
+ f.vkDestroySurface(priv->instance, priv->surface, 0);
+ if(priv->debug_report_callback)
+ f.vkDestroyDebugReportCallback(priv->instance, priv->debug_report_callback, 0);
+ f.vkDestroyInstance(priv->instance, 0);
+ delete priv;
+}
+
+void (*VulkanContext::_get_function(const std::string &name) const)()
+{
+ return vkGetInstanceProcAddr(priv->instance, name.c_str());
+}
+
+
+VulkanContext::Private::Private():
+ instance(0),
+ physical_device(0),
+ device(0),
+ graphics_queue(0),
+ debug_report_callback(0)
+{ }
+
+VkBool32 VulkanContext::Private::debug_report_func(VkDebugReportFlagsEXT, VkDebugReportObjectTypeEXT obj_type, uint64_t obj_id, size_t, int32_t, const char *layer_prefix, const char *message, void *)
+{
+ IO::print(IO::cerr, "Vulkan debug report from %s: Object %d of type %d: %s\n", layer_prefix, obj_type, obj_id, message);
+ return VK_FALSE;
+}
+
+} // namespace Graphics
+} // namespace Msp
+