eleni.mutantstargoat.com Git - demo/blob - src/vulkan/vkutil.cc

   1 #include <gmath/gmath.h>
   2 #include <vulkan/vulkan.h>
   3 #include <stdio.h>
   4 #include <stdint.h>
   5 #include <stdlib.h>
   6 #include <string.h>
   7 #include <string>
   8 #include <vector>
   9
  10 #include "allocator.h"
  11 #include "vkutil.h"
  12
  13 /* global variables */
  14 VkPhysicalDevice vk_physical;
  15 VkDevice vk_device;
  16 VkInstance vk_instance;
  17 VkQueue vk_queue;
  18 int vk_qfamily;
  19 VkCommandPool vk_pool;
  20 VkSurfaceKHR vk_surface;
  21 VkSwapchainKHR vk_swapchain;
  22 VkRenderPass vk_renderpass;
  23 VkDescriptorPool vk_dpool;
  24
  25 /* static functions */
  26 static const char *get_device_name_str(VkPhysicalDeviceType type);
  27 static const char *get_memtype_flags_str(VkMemoryPropertyFlags flags);
  28 static const char *get_queue_flags_str(VkQueueFlags flags);
  29 static const char *get_mem_size_str(long sz);
  30 static int ver_major(uint32_t ver);
  31 static int ver_minor(uint32_t ver);
  32 static int ver_patch(uint32_t ver);
  33
  34 /* static variables */
  35 static VkPhysicalDevice *phys_devices;
  36
  37 static int sel_dev;
  38 static int sel_qfamily;
  39
  40 static VkExtensionProperties *vkext, *vkdevext;
  41 static uint32_t vkext_count, vkdevext_count;
  42
  43 bool vku_have_extension(const char *name)
  44 {
  45         if(!vkext) {
  46                 vkext_count = 0;
  47                 vkEnumerateInstanceExtensionProperties(0, &vkext_count, 0);
  48                 if(vkext_count) {
  49                         vkext = new VkExtensionProperties[vkext_count];
  50                         vkEnumerateInstanceExtensionProperties(0, &vkext_count, vkext);
  51
  52                         printf("instance extensions:\n");
  53                         for(int i=0; i<(int)vkext_count; i++) {
  54                                 printf(" %s (ver: %u)\n", vkext[i].extensionName, (unsigned int)vkext[i].specVersion);
  55                         }
  56                 }
  57         }
  58
  59         for(int i=0; i<(int)vkext_count; i++) {
  60                 if(strcmp(vkext[i].extensionName, name) == 0) {
  61                         return true;
  62                 }
  63         }
  64         return false;
  65 }
  66
  67 bool vku_have_device_extension(const char *name)
  68 {
  69         if(sel_dev < 0) return false;
  70
  71         if(!vkdevext) {
  72                 vkdevext_count = 0;
  73                 vkEnumerateDeviceExtensionProperties(phys_devices[sel_dev], 0, &vkdevext_count, 0);
  74                 if(vkdevext_count) {
  75                         vkdevext = new VkExtensionProperties[vkdevext_count];
  76                         vkEnumerateDeviceExtensionProperties(phys_devices[sel_dev], 0, &vkdevext_count, vkdevext);
  77
  78                         printf("selected device extensions:\n");
  79                         for(int i=0; i<(int)vkdevext_count; i++) {
  80                                 printf(" %s (ver: %u)\n", vkdevext[i].extensionName, (unsigned int)vkdevext[i].specVersion);
  81                         }
  82                 }
  83         }
  84
  85         for(int i=0; i<(int)vkdevext_count; i++) {
  86                 if(strcmp(vkdevext[i].extensionName, name) == 0) {
  87                         return true;
  88                 }
  89         }
  90         return false;
  91 }
  92
  93 bool vku_create_device()
  94 {
  95         VkInstanceCreateInfo inst_info;
  96         VkDeviceCreateInfo dev_info;
  97         VkDeviceQueueCreateInfo queue_info;
  98         VkCommandPoolCreateInfo cmdpool_info;
  99         uint32_t num_devices;
 100         float qprio = 0.0f;
 101
 102         static const char *ext_names[] = {
 103                 "VK_KHR_xcb_surface",
 104                 "VK_KHR_surface"
 105         };
 106
 107         static const char *devext_names[] = {
 108                 "VK_KHR_swapchain"
 109         };
 110
 111         sel_dev = -1;
 112         sel_qfamily = -1;
 113
 114         for(unsigned int i=0; i<sizeof ext_names / sizeof *ext_names; i++) {
 115                 if(!vku_have_extension(ext_names[i])) {
 116                         fprintf(stderr, "required extension (%s) not found\n", ext_names[i]);
 117                         return false;
 118                 }
 119         }
 120         memset(&inst_info, 0, sizeof inst_info);
 121         inst_info.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
 122         inst_info.ppEnabledExtensionNames = ext_names;
 123         inst_info.enabledExtensionCount = sizeof ext_names / sizeof *ext_names;
 124
 125         if(vkCreateInstance(&inst_info, 0, &vk_instance) != 0) {
 126                 fprintf(stderr, "failed to create vulkan instance\n");
 127                 return false;
 128         }
 129         printf("created vulkan instance\n");
 130         if(vkEnumeratePhysicalDevices(vk_instance, &num_devices, 0) != 0) {
 131                 fprintf(stderr, "failed to enumerate vulkan physical devices\n");
 132                 return false;
 133         }
 134         phys_devices = new VkPhysicalDevice[num_devices];
 135         if(vkEnumeratePhysicalDevices(vk_instance, &num_devices, phys_devices) != 0) {
 136                 fprintf(stderr, "failed to enumerate vulkan physical devices\n");
 137                 return false;
 138         }
 139         printf("found %u physical device(s)\n", (unsigned int)num_devices);
 140
 141         for(int i=0; i<(int)num_devices; i++) {
 142                 VkPhysicalDeviceProperties dev_prop;
 143                 VkPhysicalDeviceMemoryProperties mem_prop;
 144                 VkQueueFamilyProperties *qprop;
 145                 uint32_t qprop_count;
 146
 147                 vkGetPhysicalDeviceProperties(phys_devices[i], &dev_prop);
 148
 149                 printf("Device %d: %s\n", i, dev_prop.deviceName);
 150                 printf("  type: %s\n", get_device_name_str(dev_prop.deviceType));
 151                 printf("  API version: %d.%d.%d\n", ver_major(dev_prop.apiVersion), ver_minor(dev_prop.apiVersion),
 152                        ver_patch(dev_prop.apiVersion));
 153                 printf("  driver version: %d.%d.%d\n", ver_major(dev_prop.driverVersion), ver_minor(dev_prop.driverVersion),
 154                        ver_patch(dev_prop.driverVersion));
 155                 printf("  vendor id: %x  device id: %x\n", dev_prop.vendorID, dev_prop.deviceID);
 156
 157
 158                 vkGetPhysicalDeviceMemoryProperties(phys_devices[i], &mem_prop);
 159                 printf("  %d memory heaps:\n", mem_prop.memoryHeapCount);
 160                 for(unsigned int j=0; j<mem_prop.memoryHeapCount; j++) {
 161                         VkMemoryHeap heap = mem_prop.memoryHeaps[j];
 162                         printf("    Heap %d - size: %s, flags: %s\n", j, get_mem_size_str(heap.size),
 163                                heap.flags & VK_MEMORY_HEAP_DEVICE_LOCAL_BIT ? "device-local" : "-");
 164                 }
 165                 printf("  %d memory types:\n", mem_prop.memoryTypeCount);
 166                 for(unsigned int j=0; j<mem_prop.memoryTypeCount; j++) {
 167                         VkMemoryType type = mem_prop.memoryTypes[j];
 168                         printf("    Type %d - heap: %d, flags: %s\n", j, type.heapIndex,
 169                                get_memtype_flags_str(type.propertyFlags));
 170                 }
 171
 172                 vkGetPhysicalDeviceQueueFamilyProperties(phys_devices[i], &qprop_count, 0);
 173                 if(qprop_count <= 0) {
 174                         continue;
 175                 }
 176                 qprop = new VkQueueFamilyProperties[qprop_count];
 177                 vkGetPhysicalDeviceQueueFamilyProperties(phys_devices[i], &qprop_count, qprop);
 178
 179                 for(unsigned int j=0; j<qprop_count; j++) {
 180                         printf("  Queue family %d:\n", j);
 181                         printf("    flags: %s\n", get_queue_flags_str(qprop[j].queueFlags));
 182                         printf("    num queues: %u\n", qprop[j].queueCount);
 183
 184                         if(qprop[j].queueFlags & VK_QUEUE_GRAPHICS_BIT) {
 185                                 sel_dev = i;
 186                                 sel_qfamily = j;
 187                         }
 188                 }
 189                 delete [] qprop;
 190         }
 191
 192         if(sel_dev < 0 || sel_qfamily < 0) {
 193                 fprintf(stderr, "failed to find any device with a graphics-capable command queue\n");
 194                 vkDestroyDevice(vk_device, 0);
 195                 return false;
 196         }
 197
 198         for(unsigned int i=0; i<sizeof devext_names / sizeof *devext_names; i++) {
 199                 if(!vku_have_device_extension(devext_names[i])) {
 200                         fprintf(stderr, "required extension (%s) not found on the selected device (%d)\n",
 201                                 ext_names[i], sel_dev);
 202                         return false;
 203                 }
 204         }
 205
 206         /* create device & command queue */
 207         memset(&queue_info, 0, sizeof queue_info);
 208         queue_info.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
 209         queue_info.queueFamilyIndex = sel_qfamily;
 210         queue_info.queueCount = 1;
 211         queue_info.pQueuePriorities = &qprio;
 212
 213         memset(&dev_info, 0, sizeof dev_info);
 214         dev_info.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
 215         dev_info.queueCreateInfoCount = 1;
 216         dev_info.pQueueCreateInfos = &queue_info;
 217         dev_info.enabledExtensionCount = sizeof devext_names / sizeof *devext_names;
 218         dev_info.ppEnabledExtensionNames = devext_names;
 219
 220         if(vkCreateDevice(phys_devices[sel_dev], &dev_info, 0, &vk_device) != 0) {
 221                 fprintf(stderr, "failed to create device %d\n", sel_dev);
 222                 return false;
 223         }
 224         printf("created device %d\n", sel_dev);
 225
 226         vk_physical = phys_devices[sel_dev];
 227         vk_qfamily = sel_qfamily;
 228
 229         vkGetDeviceQueue(vk_device, sel_qfamily, 0, &vk_queue);
 230
 231         /* create command buffer pool */
 232         memset(&cmdpool_info, 0, sizeof cmdpool_info);
 233         cmdpool_info.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
 234         cmdpool_info.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT;
 235         cmdpool_info.queueFamilyIndex = sel_qfamily;
 236
 237         if(vkCreateCommandPool(vk_device, &cmdpool_info, 0, &vk_pool) != 0) {
 238                 fprintf(stderr, "failed to get command queue!\n");
 239                 return false;
 240         }
 241
 242         /*      if(!(vkcmdbuf = vku_alloc_cmdbuf(vk_pool, VK_COMMAND_BUFFER_LEVEL_PRIMARY))) {
 243                         fprintf(stderr, "failed to create primary command buffer\n");
 244                         return false;
 245                 } */
 246
 247         return true;
 248 }
 249
 250 void vku_cleanup()
 251 {
 252         if(vk_instance) {
 253                 vkDeviceWaitIdle(vk_device);
 254                 vkDestroyCommandPool(vk_device, vk_pool, 0);
 255
 256                 vkDestroyDevice(vk_device, 0);
 257                 vkDestroyInstance(vk_instance, 0);
 258                 vk_instance = 0;
 259         }
 260
 261         delete [] phys_devices;
 262         phys_devices = 0;
 263 }
 264
 265 VkCommandBuffer vku_alloc_cmdbuf(VkCommandPool pool, VkCommandBufferLevel level)
 266 {
 267         VkCommandBuffer cmdbuf;
 268         VkCommandBufferAllocateInfo inf;
 269
 270         memset(&inf, 0, sizeof inf);
 271         inf.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
 272         inf.commandPool = pool;
 273         inf.level = level;
 274         inf.commandBufferCount = 1;
 275
 276         if(vkAllocateCommandBuffers(vk_device, &inf, &cmdbuf) != 0) {
 277                 return 0;
 278         }
 279         return cmdbuf;
 280 }
 281
 282 bool vku_alloc_cmdbufs(VkCommandPool pool, VkCommandBufferLevel level, unsigned int count, VkCommandBuffer *buf_array)
 283 {
 284         VkCommandBufferAllocateInfo cinf;
 285         memset(&cinf, 0, sizeof cinf);
 286
 287         cinf.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
 288         cinf.commandPool = vk_pool;
 289         cinf.level = level;
 290         cinf.commandBufferCount = count;
 291
 292         if(vkAllocateCommandBuffers(vk_device, &cinf, buf_array) != VK_SUCCESS) {
 293                 fprintf(stderr, "Failed to allocate command buffer\n");
 294                 return false;
 295         }
 296
 297         return true;
 298 }
 299
 300 void vku_free_cmdbuf(VkCommandPool pool, VkCommandBuffer buf)
 301 {
 302         vkFreeCommandBuffers(vk_device, pool, 1, &buf);
 303 }
 304
 305 void vku_begin_cmdbuf(VkCommandBuffer buf, unsigned int flags)
 306 {
 307         VkCommandBufferBeginInfo inf;
 308
 309         memset(&inf, 0, sizeof inf);
 310         inf.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
 311         inf.flags = flags;
 312
 313         vkBeginCommandBuffer(buf, &inf);
 314 }
 315
 316
 317 void vku_end_cmdbuf(VkCommandBuffer buf)
 318 {
 319         vkEndCommandBuffer(buf);
 320 }
 321
 322 void vku_reset_cmdbuf(VkCommandBuffer buf)
 323 {
 324         vkResetCommandBuffer(buf, 0);
 325 }
 326
 327 void vku_submit_cmdbuf(VkQueue q, VkCommandBuffer buf, VkFence done_fence)
 328 {
 329         VkSubmitInfo info;
 330
 331         memset(&info, 0, sizeof info);
 332         info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
 333         info.commandBufferCount = 1;
 334         info.pCommandBuffers = &buf;
 335
 336         vkQueueSubmit(q, 1, &info, done_fence);
 337 }
 338
 339 bool vku_get_surface_format(VkPhysicalDevice gpu, VkSurfaceKHR surface, VkSurfaceFormatKHR *sformat)
 340 {
 341         uint32_t fcount;
 342
 343         if(vkGetPhysicalDeviceSurfaceFormatsKHR(vk_physical,
 344                                                 vk_surface, &fcount, 0) != VK_SUCCESS) {
 345                 fprintf(stderr, "Failed to get format count for physical device.\n");
 346                 return false;
 347         }
 348         if(fcount == 0) {
 349                 fprintf(stderr, "No color formats were found.\n");
 350                 return false;
 351         }
 352
 353         VkSurfaceFormatKHR *formats = new VkSurfaceFormatKHR[fcount];
 354         if(vkGetPhysicalDeviceSurfaceFormatsKHR(vk_physical, vk_surface,
 355                                                 &fcount, formats) != VK_SUCCESS) {
 356                 delete [] formats;
 357                 fprintf(stderr, "Failed to get surface formats.\n");
 358                 return false;
 359         }
 360
 361         *sformat = formats[0];
 362
 363         if((fcount == 1) && (formats[0].format == VK_FORMAT_UNDEFINED)) {
 364                 sformat->format = VK_FORMAT_B8G8R8_UNORM;
 365         }
 366
 367         delete [] formats;
 368         return true;
 369 }
 370
 371
 372 int vku_get_next_image(VkSwapchainKHR sc)
 373 {
 374         uint32_t next;
 375
 376         if(vkAcquireNextImageKHR(vk_device, sc, UINT64_MAX, 0, 0, &next) != 0) {
 377                 return -1;
 378         }
 379         return (int)next;
 380 }
 381
 382 void vku_present(VkSwapchainKHR sc, int img_idx)
 383 {
 384         VkPresentInfoKHR inf;
 385         VkResult res;
 386         uint32_t index = img_idx;
 387
 388         memset(&inf, 0, sizeof inf);
 389         inf.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
 390         inf.swapchainCount = 1;
 391         inf.pSwapchains = &sc;
 392         inf.pImageIndices = &index;
 393         inf.pResults = &res;
 394
 395         vkQueuePresentKHR(vk_queue, &inf);
 396 }
 397
 398 struct vku_buffer *vku_create_buffer(int sz, unsigned int usage)
 399 {
 400         struct vku_buffer *buf;
 401         VkBufferCreateInfo binfo;
 402
 403         buf = new vku_buffer;
 404
 405         memset(&binfo, 0, sizeof binfo);
 406         binfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
 407         binfo.size = sz;
 408         binfo.usage = usage;
 409         binfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
 410
 411         if(vkCreateBuffer(vk_device, &binfo, 0, &buf->buf) != 0) {
 412                 fprintf(stderr, "failed to create %d byte buffer (usage: %x)\n", sz, usage);
 413                 return 0;
 414         }
 415
 416         VkMemoryRequirements mr;
 417         vkGetBufferMemoryRequirements(vk_device, buf->buf, &mr);
 418
 419         DevMemBlock block;
 420         if(!vku_allocate(mr.size, &block))
 421                 return 0;
 422
 423         buf->mem_pool = block.dev_mem;
 424
 425         return buf;
 426 }
 427
 428 void vku_destroy_buffer(struct vku_buffer *buf)
 429 {
 430 }
 431
 432 bool vku_update_buffer(vku_buffer *buf, int size, void *data)
 433 {
 434         uint8_t *pdata;
 435         if(vkMapMemory(vk_device, buf->mem_pool, 0, size, 0, (void **)&pdata) != VK_SUCCESS) {
 436                 fprintf(stderr, "Failed to map memory.\n");
 437                 return false;
 438         }
 439         memcpy(pdata, data, size);
 440         vkUnmapMemory(vk_device, buf->mem_pool);
 441
 442         return true;
 443 }
 444
 445 void vku_cmd_copybuf(VkCommandBuffer cmdbuf, VkBuffer dest, int doffs,
 446                      VkBuffer src, int soffs, int size)
 447 {
 448         VkBufferCopy copy;
 449         copy.size = size;
 450         copy.srcOffset = soffs;
 451         copy.dstOffset = doffs;
 452
 453         vkCmdCopyBuffer(cmdbuf, src, dest, 1, &copy);
 454 }
 455
 456 const char *vku_get_vulkan_error_str(VkResult error)
 457 {
 458         std::string errmsg;
 459         switch(error) {
 460         case VK_SUCCESS:
 461                 errmsg = std::string("VK_SUCCESS");
 462                 break;
 463         case VK_NOT_READY:
 464                 errmsg = std::string("VK_NOT_READY");
 465                 break;
 466         case VK_TIMEOUT:
 467                 errmsg = std::string("VK_TIMEOUT");
 468                 break;
 469         case VK_EVENT_SET:
 470                 errmsg = std::string("VK_EVENT_SET");
 471                 break;
 472         case VK_EVENT_RESET:
 473                 errmsg = std::string("VK_EVENT_RESET");
 474                 break;
 475         case VK_INCOMPLETE:
 476                 errmsg = std::string("VK_EVENT");
 477                 break;
 478         case VK_ERROR_OUT_OF_HOST_MEMORY:
 479                 errmsg = std::string("VK_ERROR_OUT_OF_HOST_MEMORY");
 480                 break;
 481         case VK_ERROR_OUT_OF_DEVICE_MEMORY:
 482                 errmsg = std::string("VK_ERROR_OUT_OF_DEVICE_MEMORY");
 483                 break;
 484         case VK_ERROR_INITIALIZATION_FAILED:
 485                 errmsg = std::string("VK_ERROR_INITIALIZATION_FAILED");
 486                 break;
 487         case VK_ERROR_DEVICE_LOST:
 488                 errmsg = std::string("VK_ERROR_DEVICE_LOST");
 489                 break;
 490         case VK_ERROR_MEMORY_MAP_FAILED:
 491                 errmsg = std::string("VK_ERROR_MEMORY_MAP_FAILED");
 492                 break;
 493         case VK_ERROR_LAYER_NOT_PRESENT:
 494                 errmsg = std::string("VK_ERROR_LAYER_NOT_PRESENT");
 495                 break;
 496         case VK_ERROR_EXTENSION_NOT_PRESENT:
 497                 errmsg = std::string("VK_ERROR_EXTENSION_NOT_PRESENT");
 498                 break;
 499         case VK_ERROR_FEATURE_NOT_PRESENT:
 500                 errmsg = std::string("VK_ERROR_FEATURE_NOT_PRESENT");
 501         case VK_ERROR_INCOMPATIBLE_DRIVER:
 502                 errmsg = std::string("VK_ERROR_INCOMPATIBLE_DRIVER");
 503                 break;
 504         case VK_ERROR_TOO_MANY_OBJECTS:
 505                 errmsg = std::string("VK_ERROR_TOO_MANY_OBJECTS");
 506                 break;
 507         case VK_ERROR_FORMAT_NOT_SUPPORTED:
 508                 errmsg = std::string("VK_ERROR_FORMAT_NOT_SUPPORTED");
 509                 break;
 510         case VK_ERROR_FRAGMENTED_POOL:
 511                 errmsg = std::string("VK_ERROR_FRAGMENTED_POOL");
 512                 break;
 513         default:
 514                 errmsg = std::string("UNKNOWN");
 515                 break;
 516         }
 517
 518         return errmsg.c_str();
 519 }
 520
 521
 522 static const char *get_device_name_str(VkPhysicalDeviceType type)
 523 {
 524         switch(type) {
 525         case VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU:
 526                 return "integrated GPU";
 527         case VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU:
 528                 return "discrete GPU";
 529         case VK_PHYSICAL_DEVICE_TYPE_VIRTUAL_GPU:
 530                 return "virtual GPU";
 531         case VK_PHYSICAL_DEVICE_TYPE_CPU:
 532                 return "CPU";
 533         default:
 534                 break;
 535         }
 536         return "unknown";
 537 }
 538
 539 static const char *get_memtype_flags_str(VkMemoryPropertyFlags flags)
 540 {
 541         static char str[128];
 542
 543         str[0] = 0;
 544         if(flags & VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT) {
 545                 strcat(str, "device-local ");
 546         }
 547         if(flags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) {
 548                 strcat(str, "host-visible ");
 549         }
 550         if(flags & VK_MEMORY_PROPERTY_HOST_COHERENT_BIT) {
 551                 strcat(str, "host-coherent ");
 552         }
 553         if(flags & VK_MEMORY_PROPERTY_HOST_CACHED_BIT) {
 554                 strcat(str, "host-cached ");
 555         }
 556         if(flags & VK_MEMORY_PROPERTY_LAZILY_ALLOCATED_BIT) {
 557                 strcat(str, "lazily-allocated ");
 558         }
 559
 560         if(!*str) {
 561                 strcat(str, "-");
 562         }
 563         return str;
 564 }
 565
 566 static const char *get_queue_flags_str(VkQueueFlags flags)
 567 {
 568         static char str[128];
 569
 570         str[0] = 0;
 571         if(flags & VK_QUEUE_GRAPHICS_BIT) {
 572                 strcat(str, "graphics ");
 573         }
 574         if(flags & VK_QUEUE_COMPUTE_BIT) {
 575                 strcat(str, "compute ");
 576         }
 577         if(flags & VK_QUEUE_TRANSFER_BIT) {
 578                 strcat(str, "transfer ");
 579         }
 580         if(flags & VK_QUEUE_SPARSE_BINDING_BIT) {
 581                 strcat(str, "sparse-binding ");
 582         }
 583         if(!*str) {
 584                 strcat(str, "-");
 585         }
 586         return str;
 587 }
 588
 589 static int ver_major(uint32_t ver)
 590 {
 591         return (ver >> 22) & 0x3ff;
 592 }
 593
 594 static int ver_minor(uint32_t ver)
 595 {
 596         return (ver >> 12) & 0x3ff;
 597 }
 598
 599 static int ver_patch(uint32_t ver)
 600 {
 601         return ver & 0xfff;
 602 }
 603
 604 static const char *get_mem_size_str(long sz)
 605 {
 606         static char str[64];
 607         static const char *unitstr[] = { "bytes", "KB", "MB", "GB", "TB", "PB", 0 };
 608         int uidx = 0;
 609         sz *= 10;
 610
 611         while(sz >= 10240 && unitstr[uidx + 1]) {
 612                 sz /= 1024;
 613                 ++uidx;
 614         }
 615         sprintf(str, "%ld.%ld %s", sz / 10, sz % 10, unitstr[uidx]);
 616         return str;
 617 }
 618
 619 vku_descriptor *vku_create_descriptor(VkDescriptorType type,
 620                                       VkFlags stage, int binding_point,
 621                                       int size, int num_desc)
 622 {
 623         vku_descriptor *desc = new vku_descriptor;
 624
 625         desc->type = type;
 626         desc->size = size;
 627         desc->stage_flags = stage;
 628         desc->binding_point = binding_point;
 629
 630         VkDescriptorSetLayoutBinding dslb;
 631         memset(&dslb, 0, sizeof dslb);
 632
 633         dslb.binding = binding_point;
 634         dslb.descriptorType = type;
 635         dslb.descriptorCount = num_desc;
 636         dslb.stageFlags = stage;
 637
 638         VkDescriptorSetLayoutCreateInfo dslinf;
 639         memset(&dslinf, 0, sizeof dslinf);
 640
 641         dslinf.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
 642         dslinf.bindingCount = 1;
 643         dslinf.pBindings = &dslb;
 644
 645         if(vkCreateDescriptorSetLayout(vk_device, &dslinf, 0, &desc->layout) != VK_SUCCESS) {
 646                 fprintf(stderr, "Failed to create vku_descriptor.\n");
 647                 return 0;
 648         }
 649
 650         return desc;
 651 }
 652
 653 void vku_destroy_descriptor(vku_descriptor *desc)
 654 {
 655         vkDestroyDescriptorSetLayout(vk_device, desc->layout, 0);
 656         delete desc;
 657 }
 658
 659 bool vku_create_descriptor_pool(vku_descriptor **descriptors, int num_desc)
 660 {
 661         if(vk_dpool)
 662                 vkDestroyDescriptorPool(vk_device, vk_dpool, 0);
 663
 664         VkDescriptorPoolCreateInfo dpinf;
 665         memset(&dpinf, 0, sizeof dpinf);
 666         dpinf.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
 667         dpinf.maxSets = 1;
 668
 669         dpinf.poolSizeCount = num_desc;
 670
 671         std::vector<VkDescriptorPoolSize> sizes;
 672         for(int i=0; i<num_desc; i++) {
 673                 VkDescriptorPoolSize psz;
 674                 psz.type = descriptors[i]->type;
 675                 psz.descriptorCount = 1;
 676                 sizes.push_back(psz);
 677         }
 678
 679         dpinf.pPoolSizes = sizes.data();
 680
 681         if(vkCreateDescriptorPool(vk_device, &dpinf, 0, &vk_dpool) != VK_SUCCESS) {
 682                 fprintf(stderr, "Failed to create descriptor pool.\n");
 683                 return false;
 684         }
 685
 686         return true;
 687 }
 688
 689 void vku_destroy_descriptor_pool()
 690 {
 691         vkDestroyDescriptorPool(vk_device, vk_dpool, 0);
 692 }
 693
 694 bool vku_allocate_descriptor_sets(vku_descriptor **desc, int num_desc, VkDescriptorSet set)
 695 {
 696         VkDescriptorSetAllocateInfo dainf;
 697         memset(&dainf, 0, sizeof dainf);
 698
 699         dainf.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
 700         dainf.descriptorPool = vk_dpool;
 701         dainf.descriptorSetCount = num_desc;
 702
 703         std::vector<VkDescriptorSetLayout> layouts;
 704         for(int i=0; i<num_desc; i++) {
 705                 layouts.push_back(desc[i]->layout);
 706         }
 707
 708         dainf.pSetLayouts = layouts.data();
 709
 710         if(vkAllocateDescriptorSets(vk_device, &dainf, &set) != VK_SUCCESS) {
 711                 fprintf(stderr, "Failed to allocate descriptor sets.\n");
 712                 return false;
 713         }
 714         return true;
 715 }
 716
 717 void vku_free_descriptor_sets(VkDescriptorSet *sets, int num)
 718 {
 719         vkFreeDescriptorSets(vk_device, vk_dpool, num, sets);
 720 }
 721
 722 bool vku_update_descriptor_sets(VkDescriptorSet *sets, int num_sets)
 723 {
 724 //      std::vector
 725         return true;
 726 }