1#include "gog_instance.h"
 2#include <stdlib.h>
 3
 4gog_result gog_instance_audit(gog_instance* gog) {
 5	vkEnumeratePhysicalDevices(gog->vk_instance, &gog->device_c, NULL);
 6	VkPhysicalDevice* phys_devs = alloca(sizeof(VkPhysicalDevice) * gog->device_c);
 7	vkEnumeratePhysicalDevices(gog->vk_instance, &gog->device_c, phys_devs);
 8
 9	gog->devices = malloc(sizeof(gog_device) * gog->device_c);
10
11	for (uint32_t i = 0; i < gog->device_c; i++) {
12		gog_device* d = &gog->devices[i];
13		d->physical = phys_devs[i];
14		d->logical = VK_NULL_HANDLE;
15
16		vkGetPhysicalDeviceProperties(d->physical, &d->props);
17		vkGetPhysicalDeviceFeatures(d->physical, &d->features);
18
19		VkPhysicalDeviceMemoryProperties mem;
20		vkGetPhysicalDeviceMemoryProperties(d->physical, &mem);
21		uint64_t vram_bytes = 0;
22		for (uint32_t m = 0; m < mem.memoryHeapCount; m++) {
23			if (mem.memoryHeaps[m].flags & VK_MEMORY_HEAP_DEVICE_LOCAL_BIT)
24				vram_bytes += mem.memoryHeaps[m].size;
25		}
26		d->specs.vram_mb = (uint32_t)(vram_bytes / (1024 * 1024));
27		d->specs.performance = d->props.limits.maxComputeWorkGroupInvocations + 
28			((d->props.deviceType == VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU) ? 1000 : 0);
29
30		/* Find Queues */
31		uint32_t q_count = 0;
32		vkGetPhysicalDeviceQueueFamilyProperties(d->physical, &q_count, NULL);
33		VkQueueFamilyProperties* q_props = alloca(sizeof(VkQueueFamilyProperties) * q_count);
34		vkGetPhysicalDeviceQueueFamilyProperties(d->physical, &q_count, q_props);
35
36		for (uint32_t j = 0; j < q_count; j++) {
37			if (q_props[j].queueFlags & VK_QUEUE_GRAPHICS_BIT) d->queues.graphics = j;
38			if (q_props[j].queueFlags & VK_QUEUE_COMPUTE_BIT)  d->queues.compute = j;
39
40			if (gog->vk_surface != VK_NULL_HANDLE) {
41				VkBool32 present = VK_FALSE;
42				vkGetPhysicalDeviceSurfaceSupportKHR(d->physical, j, gog->vk_surface, &present);
43				if (present) d->queues.present = j;
44			}
45		}
46	}
47	return GET_GOG_RESULT(GOG_SUCCES, 0);
48}
49
50void gog_instance_destroy(gog_instance* gog) {
51	if (!gog) return;
52	for (uint32_t i = 0; i < gog->device_c; i++) {
53		if (gog->devices[i].logical != VK_NULL_HANDLE) {
54			vkDeviceWaitIdle(gog->devices[i].logical);
55			vkDestroyDevice(gog->devices[i].logical, NULL);
56		}
57	}
58	free(gog->devices);
59}