package main

// #include "main.h"
import "C"
import (
	"unsafe"
)

type VkInstance C.VkInstance
type PhysicalDevice C.VkPhysicalDevice
type Result C.VkResult

func (Result) Error() string { return "" }

func vkEnumeratePhysicalDevices(instance VkInstance) ([]PhysicalDevice, error) {
	var count C.uint32_t
	result := C.vkEnumeratePhysicalDevices(
		(C.VkInstance)(unsafe.Pointer(instance)),
		&count,
		nil,
	)
	if result != C.VK_SUCCESS { // will be skipped by debugger
		return nil, Result(result)
	}
	devices := make([]PhysicalDevice, count)
	result = C.vkEnumeratePhysicalDevices(
		(C.VkInstance)(unsafe.Pointer(instance)),
		&count,
		(*C.VkPhysicalDevice)(unsafe.Pointer(&devices[0])))
	if result != C.VK_SUCCESS { // will *NOT* be skipped by debugger
		return nil, Result(result)
	}
	return devices, nil
}

func main() {
	_, _ = vkEnumeratePhysicalDevices(nil)
}