git.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 "vkutil.h"
  11
  12 /* global variables */
  13
  14 VkPipeline *vkgparent_pipeline;
  15 VkFramebuffer *vkfbufs;
  16 VkRenderPass vkrpass;
  17 VkSurfaceKHR vksurface;
  18 VkInstance vkinst;
  19 VkPhysicalDevice vkpdev;
  20 VkDevice vkdev;
  21 VkQueue vkq;
  22 VkCommandPool vkcmdpool;
  23 VkCommandBuffer vkcmdbuf;       /* primary command buffer */
  24 int vkqfamily;
  25
  26 VkSemaphore vk_img_avail_sema;
  27 VkSemaphore vk_rend_done_sema;
  28 VkSwapchainKHR vkswapchain;
  29 VkImage *vkswapchain_images;
  30 VkImageView *vkswapchain_views;
  31 int vknum_swapchain_images;
  32 int vk_curr_swapchain_image;
  33
  34 /* static functions */
  35 static const char *get_device_name_str(VkPhysicalDeviceType type);
  36 static const char *get_memtype_flags_str(VkMemoryPropertyFlags flags);
  37 static const char *get_queue_flags_str(VkQueueFlags flags);
  38 static const char *get_mem_size_str(long sz);
  39 static int ver_major(uint32_t ver);
  40 static int ver_minor(uint32_t ver);
  41 static int ver_patch(uint32_t ver);
  42
  43 /* static variables */
  44 static VkPhysicalDevice *phys_devices;
  45
  46 static int sel_dev;
  47 static int sel_qfamily;
  48
  49 static VkExtensionProperties *vkext, *vkdevext;
  50 static uint32_t vkext_count, vkdevext_count;
  51
  52 bool vku_have_extension(const char *name)
  53 {
  54         if(!vkext) {
  55                 vkext_count = 0;
  56                 vkEnumerateInstanceExtensionProperties(0, &vkext_count, 0);
  57                 if(vkext_count) {
  58                         vkext = new VkExtensionProperties[vkext_count];
  59                         vkEnumerateInstanceExtensionProperties(0, &vkext_count, vkext);
  60
  61                         printf("instance extensions:\n");
  62                         for(int i=0; i<(int)vkext_count; i++) {
  63                                 printf(" %s (ver: %u)\n", vkext[i].extensionName, (unsigned int)vkext[i].specVersion);
  64                         }
  65                 }
  66         }
  67
  68         for(int i=0; i<(int)vkext_count; i++) {
  69                 if(strcmp(vkext[i].extensionName, name) == 0) {
  70                         return true;
  71                 }
  72         }
  73         return false;
  74 }
  75
  76 bool vku_have_device_extension(const char *name)
  77 {
  78         if(sel_dev < 0) return false;
  79
  80         if(!vkdevext) {
  81                 vkdevext_count = 0;
  82                 vkEnumerateDeviceExtensionProperties(phys_devices[sel_dev], 0, &vkdevext_count, 0);
  83                 if(vkdevext_count) {
  84                         vkdevext = new VkExtensionProperties[vkdevext_count];
  85                         vkEnumerateDeviceExtensionProperties(phys_devices[sel_dev], 0, &vkdevext_count, vkdevext);
  86
  87                         printf("selected device extensions:\n");
  88                         for(int i=0; i<(int)vkdevext_count; i++) {
  89                                 printf(" %s (ver: %u)\n", vkdevext[i].extensionName, (unsigned int)vkdevext[i].specVersion);
  90                         }
  91                 }
  92         }
  93
  94         for(int i=0; i<(int)vkdevext_count; i++) {
  95                 if(strcmp(vkdevext[i].extensionName, name) == 0) {
  96                         return true;
  97                 }
  98         }
  99         return false;
 100 }
 101
 102 bool vku_create_device()
 103 {
 104         VkInstanceCreateInfo inst_info;
 105         VkDeviceCreateInfo dev_info;
 106         VkDeviceQueueCreateInfo queue_info;
 107         VkCommandPoolCreateInfo cmdpool_info;
 108         uint32_t num_devices;
 109         float qprio = 0.0f;
 110
 111         static const char *ext_names[] = {
 112                 "VK_KHR_xcb_surface",
 113                 "VK_KHR_surface"
 114         };
 115
 116         static const char *devext_names[] = {
 117                 "VK_KHR_swapchain"
 118         };
 119
 120         sel_dev = -1;
 121         sel_qfamily = -1;
 122
 123         for(unsigned int i=0; i<sizeof ext_names / sizeof *ext_names; i++) {
 124                 if(!vku_have_extension(ext_names[i])) {
 125                         fprintf(stderr, "required extension (%s) not found\n", ext_names[i]);
 126                         return false;
 127                 }
 128         }
 129         memset(&inst_info, 0, sizeof inst_info);
 130         inst_info.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
 131         inst_info.ppEnabledExtensionNames = ext_names;
 132         inst_info.enabledExtensionCount = sizeof ext_names / sizeof *ext_names;
 133
 134         if(vkCreateInstance(&inst_info, 0, &vkinst) != 0) {
 135                 fprintf(stderr, "failed to create vulkan instance\n");
 136                 return false;
 137         }
 138         printf("created vulkan instance\n");
 139         if(vkEnumeratePhysicalDevices(vkinst, &num_devices, 0) != 0) {
 140                 fprintf(stderr, "failed to enumerate vulkan physical devices\n");
 141                 return false;
 142         }
 143         phys_devices = new VkPhysicalDevice[num_devices];
 144         if(vkEnumeratePhysicalDevices(vkinst, &num_devices, phys_devices) != 0) {
 145                 fprintf(stderr, "failed to enumerate vulkan physical devices\n");
 146                 return false;
 147         }
 148         printf("found %u physical device(s)\n", (unsigned int)num_devices);
 149
 150         for(int i=0; i<(int)num_devices; i++) {
 151                 VkPhysicalDeviceProperties dev_prop;
 152                 VkPhysicalDeviceMemoryProperties mem_prop;
 153                 VkQueueFamilyProperties *qprop;
 154                 uint32_t qprop_count;
 155
 156                 vkGetPhysicalDeviceProperties(phys_devices[i], &dev_prop);
 157
 158                 printf("Device %d: %s\n", i, dev_prop.deviceName);
 159                 printf("  type: %s\n", get_device_name_str(dev_prop.deviceType));
 160                 printf("  API version: %d.%d.%d\n", ver_major(dev_prop.apiVersion), ver_minor(dev_prop.apiVersion),
 161                        ver_patch(dev_prop.apiVersion));
 162                 printf("  driver version: %d.%d.%d\n", ver_major(dev_prop.driverVersion), ver_minor(dev_prop.driverVersion),
 163                        ver_patch(dev_prop.driverVersion));
 164                 printf("  vendor id: %x  device id: %x\n", dev_prop.vendorID, dev_prop.deviceID);
 165
 166
 167                 vkGetPhysicalDeviceMemoryProperties(phys_devices[i], &mem_prop);
 168                 printf("  %d memory heaps:\n", mem_prop.memoryHeapCount);
 169                 for(unsigned int j=0; j<mem_prop.memoryHeapCount; j++) {
 170                         VkMemoryHeap heap = mem_prop.memoryHeaps[j];
 171                         printf("    Heap %d - size: %s, flags: %s\n", j, get_mem_size_str(heap.size),
 172                                heap.flags & VK_MEMORY_HEAP_DEVICE_LOCAL_BIT ? "device-local" : "-");
 173                 }
 174                 printf("  %d memory types:\n", mem_prop.memoryTypeCount);
 175                 for(unsigned int j=0; j<mem_prop.memoryTypeCount; j++) {
 176                         VkMemoryType type = mem_prop.memoryTypes[j];
 177                         printf("    Type %d - heap: %d, flags: %s\n", j, type.heapIndex,
 178                                get_memtype_flags_str(type.propertyFlags));
 179                 }
 180
 181                 vkGetPhysicalDeviceQueueFamilyProperties(phys_devices[i], &qprop_count, 0);
 182                 if(qprop_count <= 0) {
 183                         continue;
 184                 }
 185                 qprop = new VkQueueFamilyProperties[qprop_count];
 186                 vkGetPhysicalDeviceQueueFamilyProperties(phys_devices[i], &qprop_count, qprop);
 187
 188                 for(unsigned int j=0; j<qprop_count; j++) {
 189                         printf("  Queue family %d:\n", j);
 190                         printf("    flags: %s\n", get_queue_flags_str(qprop[j].queueFlags));
 191                         printf("    num queues: %u\n", qprop[j].queueCount);
 192
 193                         if(qprop[j].queueFlags & VK_QUEUE_GRAPHICS_BIT) {
 194                                 sel_dev = i;
 195                                 sel_qfamily = j;
 196                         }
 197                 }
 198                 delete [] qprop;
 199         }
 200
 201         if(sel_dev < 0 || sel_qfamily < 0) {
 202                 fprintf(stderr, "failed to find any device with a graphics-capable command queue\n");
 203                 vkDestroyDevice(vkdev, 0);
 204                 return false;
 205         }
 206
 207         for(unsigned int i=0; i<sizeof devext_names / sizeof *devext_names; i++) {
 208                 if(!vku_have_device_extension(devext_names[i])) {
 209                         fprintf(stderr, "required extension (%s) not found on the selected device (%d)\n",
 210                                 ext_names[i], sel_dev);
 211                         return false;
 212                 }
 213         }
 214
 215         /* create device & command queue */
 216         memset(&queue_info, 0, sizeof queue_info);
 217         queue_info.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
 218         queue_info.queueFamilyIndex = sel_qfamily;
 219         queue_info.queueCount = 1;
 220         queue_info.pQueuePriorities = &qprio;
 221
 222         memset(&dev_info, 0, sizeof dev_info);
 223         dev_info.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
 224         dev_info.queueCreateInfoCount = 1;
 225         dev_info.pQueueCreateInfos = &queue_info;
 226         dev_info.enabledExtensionCount = sizeof devext_names / sizeof *devext_names;
 227         dev_info.ppEnabledExtensionNames = devext_names;
 228
 229         if(vkCreateDevice(phys_devices[sel_dev], &dev_info, 0, &vkdev) != 0) {
 230                 fprintf(stderr, "failed to create device %d\n", sel_dev);
 231                 return false;
 232         }
 233         printf("created device %d\n", sel_dev);
 234
 235         vkpdev = phys_devices[sel_dev];
 236         vkqfamily = sel_qfamily;
 237
 238         vkGetDeviceQueue(vkdev, sel_qfamily, 0, &vkq);
 239
 240         /* create command buffer pool */
 241         memset(&cmdpool_info, 0, sizeof cmdpool_info);
 242         cmdpool_info.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
 243         cmdpool_info.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT;
 244         cmdpool_info.queueFamilyIndex = sel_qfamily;
 245
 246         if(vkCreateCommandPool(vkdev, &cmdpool_info, 0, &vkcmdpool) != 0) {
 247                 fprintf(stderr, "failed to get command quque!\n");
 248                 return false;
 249         }
 250
 251         if(!(vkcmdbuf = vku_alloc_cmdbuf(vkcmdpool, VK_COMMAND_BUFFER_LEVEL_PRIMARY))) {
 252                 fprintf(stderr, "failed to create primary command buffer\n");
 253                 return false;
 254         }
 255
 256         return true;
 257 }
 258
 259 void vku_cleanup()
 260 {
 261         if(vkinst) {
 262                 vkDeviceWaitIdle(vkdev);
 263                 vkDestroyCommandPool(vkdev, vkcmdpool, 0);
 264
 265                 vkDestroySemaphore(vkdev, vk_img_avail_sema, 0);
 266                 vkDestroySemaphore(vkdev, vk_rend_done_sema, 0);
 267
 268                 vkDestroyDevice(vkdev, 0);
 269                 vkDestroyInstance(vkinst, 0);
 270                 vkinst = 0;
 271         }
 272
 273         delete [] phys_devices;
 274         phys_devices = 0;
 275 }
 276
 277 bool vku_create_semaphores()
 278 {
 279         VkSemaphoreCreateInfo sinf;
 280         memset(&sinf, 0, sizeof sinf);
 281
 282         sinf.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
 283         if(vkCreateSemaphore(vkdev, &sinf, 0, &vk_img_avail_sema) != VK_SUCCESS) {
 284                 fprintf(stderr, "Failed to create semaphore\n");
 285                 return false;
 286         }
 287
 288         if(vkCreateSemaphore(vkdev, &sinf, 0, &vk_rend_done_sema) != VK_SUCCESS) {
 289                 fprintf(stderr, "Failed to create semaphore\n");
 290                 return false;
 291         }
 292
 293         return true;
 294 }
 295
 296 VkCommandBuffer vku_alloc_cmdbuf(VkCommandPool pool, VkCommandBufferLevel level)
 297 {
 298         VkCommandBuffer cmdbuf;
 299         VkCommandBufferAllocateInfo inf;
 300
 301         memset(&inf, 0, sizeof inf);
 302         inf.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
 303         inf.commandPool = pool;
 304         inf.level = level;
 305         inf.commandBufferCount = 1;
 306
 307         if(vkAllocateCommandBuffers(vkdev, &inf, &cmdbuf) != 0) {
 308                 return 0;
 309         }
 310         return cmdbuf;
 311 }
 312
 313 void vku_free_cmdbuf(VkCommandPool pool, VkCommandBuffer buf)
 314 {
 315         vkFreeCommandBuffers(vkdev, pool, 1, &buf);
 316 }
 317
 318 void vku_begin_cmdbuf(VkCommandBuffer buf, unsigned int flags)
 319 {
 320         VkCommandBufferBeginInfo inf;
 321
 322         memset(&inf, 0, sizeof inf);
 323         inf.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
 324         inf.flags = flags;
 325
 326         vkBeginCommandBuffer(buf, &inf);
 327 }
 328
 329
 330 void vku_end_cmdbuf(VkCommandBuffer buf)
 331 {
 332         vkEndCommandBuffer(buf);
 333 }
 334
 335 void vku_reset_cmdbuf(VkCommandBuffer buf)
 336 {
 337         vkResetCommandBuffer(buf, 0);
 338 }
 339
 340 void vku_submit_cmdbuf(VkQueue q, VkCommandBuffer buf, VkFence done_fence)
 341 {
 342         VkSubmitInfo info;
 343
 344         memset(&info, 0, sizeof info);
 345         info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
 346         info.commandBufferCount = 1;
 347         info.pCommandBuffers = &buf;
 348
 349         vkQueueSubmit(q, 1, &info, done_fence);
 350 }
 351
 352 VkSwapchainKHR vku_create_swapchain(VkSurfaceKHR surf, int xsz, int ysz, int n,
 353                                     VkPresentModeKHR pmode, VkSwapchainKHR prev)
 354 {
 355         VkSwapchainKHR sc;
 356         VkSwapchainCreateInfoKHR inf;
 357
 358         memset(&inf, 0, sizeof inf);
 359         inf.sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR;
 360         inf.surface = surf;
 361         inf.minImageCount = n;
 362         inf.imageFormat = VK_FORMAT_B8G8R8A8_UNORM;     /* TODO enumerate and choose */
 363         inf.imageColorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
 364         inf.imageExtent.width = xsz;
 365         inf.imageExtent.height = ysz;
 366         inf.imageArrayLayers = 1;
 367         inf.imageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
 368         inf.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE;       /* XXX make this an option? */
 369         inf.preTransform = VK_SURFACE_TRANSFORM_INHERIT_BIT_KHR;
 370         inf.compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
 371         inf.presentMode = pmode;
 372         inf.oldSwapchain = prev;
 373
 374         if(vkCreateSwapchainKHR(vkdev, &inf, 0, &sc) != 0) {
 375                 return 0;
 376         }
 377         return sc;
 378 }
 379
 380 VkImage *vku_get_swapchain_images(VkSwapchainKHR sc, int *count)
 381 {
 382         uint32_t nimg;
 383         VkImage *images;
 384
 385         if(vkGetSwapchainImagesKHR(vkdev, sc, &nimg, 0) != 0) {
 386                 return 0;
 387         }
 388         images = new VkImage[nimg];
 389         vkGetSwapchainImagesKHR(vkdev, sc, &nimg, images);
 390
 391         if(count) *count = (int)nimg;
 392         return images;
 393 }
 394
 395 VkImageView *vku_create_image_views(VkImage *images, int count)
 396 {
 397         VkImageView *iviews;
 398
 399         iviews = new VkImageView[count];
 400         for(int i=0; i<count; i++) {
 401                 VkImageViewCreateInfo inf;
 402                 memset(&inf, 0, sizeof inf);
 403
 404                 inf.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
 405                 inf.image = images[i];
 406                 inf.viewType = VK_IMAGE_VIEW_TYPE_2D;
 407                 inf.format = VK_FORMAT_B8G8R8A8_UNORM; //TODO
 408                 inf.components.r = inf.components.g = inf.components.b =
 409                         inf.components.a = VK_COMPONENT_SWIZZLE_IDENTITY;
 410                 inf.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
 411                 inf.subresourceRange.levelCount = 1;
 412                 inf.subresourceRange.layerCount = 1;
 413
 414                 if(vkCreateImageView(vkdev, &inf, 0, iviews) != 0) {
 415                         fprintf(stderr, "Failed to create image views.\n");
 416                         delete iviews;
 417                         return 0;
 418                 }
 419         }
 420
 421         return iviews;
 422 }
 423
 424 int vku_get_next_image(VkSwapchainKHR sc)
 425 {
 426         uint32_t next;
 427
 428         if(vkAcquireNextImageKHR(vkdev, sc, UINT64_MAX, 0, 0, &next) != 0) {
 429                 return -1;
 430         }
 431         return (int)next;
 432 }
 433
 434 void vku_present(VkSwapchainKHR sc, int img_idx)
 435 {
 436         VkPresentInfoKHR inf;
 437         VkResult res;
 438         uint32_t index = img_idx;
 439
 440         memset(&inf, 0, sizeof inf);
 441         inf.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
 442         inf.swapchainCount = 1;
 443         inf.pSwapchains = &sc;
 444         inf.pImageIndices = &index;
 445         inf.pResults = &res;
 446
 447         vkQueuePresentKHR(vkq, &inf);
 448 }
 449
 450 bool vku_create_renderpass()
 451 {
 452         VkAttachmentDescription attachments[2];
 453         memset(&attachments, 0, 2 * sizeof *attachments);
 454
 455         /* color */
 456         attachments[0].format = VK_FORMAT_B8G8R8A8_UNORM;
 457         attachments[0].samples = VK_SAMPLE_COUNT_1_BIT;
 458         attachments[0].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
 459         attachments[0].storeOp = VK_ATTACHMENT_STORE_OP_STORE;
 460         attachments[0].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
 461         attachments[0].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
 462         attachments[0].initialLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
 463         attachments[0].finalLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
 464
 465         /* depth */
 466         attachments[1].format = VK_FORMAT_D32_SFLOAT_S8_UINT; //TODO
 467         attachments[1].samples = VK_SAMPLE_COUNT_1_BIT;
 468         attachments[1].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
 469         attachments[1].storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
 470         attachments[1].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
 471         attachments[1].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
 472         attachments[1].initialLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
 473         attachments[1].finalLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
 474
 475         VkAttachmentReference color_ref;
 476         color_ref.attachment = 0;
 477         color_ref.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
 478
 479         VkAttachmentReference depth_ref;
 480         depth_ref.attachment = 1;
 481         depth_ref.layout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
 482
 483         VkSubpassDescription subpass_desc;
 484         memset(&subpass_desc, 0, sizeof subpass_desc);
 485
 486         subpass_desc.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
 487         subpass_desc.colorAttachmentCount = 1;
 488         subpass_desc.pColorAttachments = &color_ref;
 489         subpass_desc.pDepthStencilAttachment = &depth_ref;
 490
 491         VkRenderPassCreateInfo inf;
 492         memset(&inf, 0, sizeof inf);
 493
 494         inf.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
 495         inf.attachmentCount = 2;
 496         inf.pAttachments = attachments;
 497         inf.subpassCount = 1;
 498         inf.pSubpasses = &subpass_desc;
 499
 500         if(vkCreateRenderPass(vkdev, &inf, 0, &vkrpass) != VK_SUCCESS) {
 501                 return false;
 502         }
 503
 504         return true;
 505 }
 506
 507 bool vku_create_framebuffers(VkImageView *image_views, int count, int w, int h)
 508 {
 509         delete vkfbufs;
 510         vkfbufs = new VkFramebuffer[count];
 511
 512         VkFramebufferCreateInfo inf;
 513         memset(&inf, 0, sizeof inf);
 514
 515         inf.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
 516         inf.renderPass = vkrpass;
 517         inf.attachmentCount = count;
 518         inf.pAttachments = image_views;
 519         inf.width = w;
 520         inf.height = h;
 521         inf.layers = 1;
 522
 523         for(int i=0; i<count; i++) {
 524                 if(vkCreateFramebuffer(vkdev, &inf, 0, &vkfbufs[i]) != VK_SUCCESS) {
 525                         fprintf(stderr, "Failed to create framebuffer for image view: %d\n", i);
 526                         delete vkfbufs;
 527                         return false;
 528                 }
 529         }
 530         return true;
 531 }
 532
 533 struct vku_buffer *vku_create_buffer(int sz, unsigned int usage)
 534 {
 535         struct vku_buffer *buf;
 536         VkBufferCreateInfo binfo;
 537
 538         buf = new vku_buffer;
 539
 540         memset(&binfo, 0, sizeof binfo);
 541         binfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
 542         binfo.size = sz;
 543         binfo.usage = usage;
 544         binfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
 545
 546         if(vkCreateBuffer(vkdev, &binfo, 0, &buf->buf) != 0) {
 547                 fprintf(stderr, "failed to create %d byte buffer (usage: %x)\n", sz, usage);
 548                 return 0;
 549         }
 550         // TODO back with memory
 551         return buf;
 552 }
 553
 554 void vku_destroy_buffer(struct vku_buffer *buf)
 555 {
 556         if(buf) {
 557                 vkDestroyBuffer(vkdev, buf->buf, 0);
 558                 delete buf;
 559         }
 560 }
 561
 562 void vku_cmd_copybuf(VkCommandBuffer cmdbuf, VkBuffer dest, int doffs,
 563                      VkBuffer src, int soffs, int size)
 564 {
 565         VkBufferCopy copy;
 566         copy.size = size;
 567         copy.srcOffset = soffs;
 568         copy.dstOffset = doffs;
 569
 570         vkCmdCopyBuffer(cmdbuf, src, dest, 1, &copy);
 571 }
 572
 573 const char *vku_get_vulkan_error_str(VkResult error)
 574 {
 575         std::string errmsg;
 576         switch(error) {
 577         case VK_SUCCESS:
 578                 errmsg = std::string("VK_SUCCESS");
 579                 break;
 580         case VK_NOT_READY:
 581                 errmsg = std::string("VK_NOT_READY");
 582                 break;
 583         case VK_TIMEOUT:
 584                 errmsg = std::string("VK_TIMEOUT");
 585                 break;
 586         case VK_EVENT_SET:
 587                 errmsg = std::string("VK_EVENT_SET");
 588                 break;
 589         case VK_EVENT_RESET:
 590                 errmsg = std::string("VK_EVENT_RESET");
 591                 break;
 592         case VK_INCOMPLETE:
 593                 errmsg = std::string("VK_EVENT");
 594                 break;
 595         case VK_ERROR_OUT_OF_HOST_MEMORY:
 596                 errmsg = std::string("VK_ERROR_OUT_OF_HOST_MEMORY");
 597                 break;
 598         case VK_ERROR_OUT_OF_DEVICE_MEMORY:
 599                 errmsg = std::string("VK_ERROR_OUT_OF_DEVICE_MEMORY");
 600                 break;
 601         case VK_ERROR_INITIALIZATION_FAILED:
 602                 errmsg = std::string("VK_ERROR_INITIALIZATION_FAILED");
 603                 break;
 604         case VK_ERROR_DEVICE_LOST:
 605                 errmsg = std::string("VK_ERROR_DEVICE_LOST");
 606                 break;
 607         case VK_ERROR_MEMORY_MAP_FAILED:
 608                 errmsg = std::string("VK_ERROR_MEMORY_MAP_FAILED");
 609                 break;
 610         case VK_ERROR_LAYER_NOT_PRESENT:
 611                 errmsg = std::string("VK_ERROR_LAYER_NOT_PRESENT");
 612                 break;
 613         case VK_ERROR_EXTENSION_NOT_PRESENT:
 614                 errmsg = std::string("VK_ERROR_EXTENSION_NOT_PRESENT");
 615                 break;
 616         case VK_ERROR_FEATURE_NOT_PRESENT:
 617                 errmsg = std::string("VK_ERROR_FEATURE_NOT_PRESENT");
 618         case VK_ERROR_INCOMPATIBLE_DRIVER:
 619                 errmsg = std::string("VK_ERROR_INCOMPATIBLE_DRIVER");
 620                 break;
 621         case VK_ERROR_TOO_MANY_OBJECTS:
 622                 errmsg = std::string("VK_ERROR_TOO_MANY_OBJECTS");
 623                 break;
 624         case VK_ERROR_FORMAT_NOT_SUPPORTED:
 625                 errmsg = std::string("VK_ERROR_FORMAT_NOT_SUPPORTED");
 626                 break;
 627         case VK_ERROR_FRAGMENTED_POOL:
 628                 errmsg = std::string("VK_ERROR_FRAGMENTED_POOL");
 629                 break;
 630         default:
 631                 errmsg = std::string("UNKNOWN");
 632                 break;
 633         }
 634
 635         return errmsg.c_str();
 636 }
 637
 638 bool vku_create_graphics_pipeline(VkPipelineLayout *layout)
 639 {
 640         VkGraphicsPipelineCreateInfo inf;
 641         memset(&inf, 0, sizeof inf);
 642
 643         inf.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
 644         inf.layout = *layout;
 645         inf.renderPass = vkrpass;
 646
 647         /* states */
 648
 649         /* how primitives are assembled */
 650         VkPipelineInputAssemblyStateCreateInfo ias;
 651         memset(&ias, 0, sizeof ias);
 652         ias.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO;
 653         ias.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
 654
 655         /* rasterisation */
 656         VkPipelineRasterizationStateCreateInfo rsi;
 657         memset(&rsi, 0, sizeof rsi);
 658         rsi.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;
 659         rsi.polygonMode = VK_POLYGON_MODE_FILL;
 660         rsi.cullMode = VK_CULL_MODE_BACK_BIT;
 661         rsi.frontFace = VK_FRONT_FACE_COUNTER_CLOCKWISE;
 662         rsi.lineWidth = 1.0f;
 663
 664         /* blend factors */
 665         VkPipelineColorBlendAttachmentState bas[1];
 666         memset(&bas[0], 0, sizeof bas[0]);
 667
 668         VkPipelineColorBlendStateCreateInfo cbs;
 669         memset(&cbs, 0, sizeof cbs);
 670         cbs.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO;
 671         cbs.attachmentCount = 1;
 672         cbs.pAttachments = bas;
 673
 674         /* number of viewport and scissors in this pipeline */
 675         VkPipelineViewportStateCreateInfo vs;
 676         memset(&vs, 0, sizeof vs);
 677         vs.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
 678         vs.viewportCount = 1;
 679         vs.scissorCount = 1;
 680
 681         /* dynamic states: that can be changed later */
 682         std::vector<VkDynamicState> ds_enabled;
 683         ds_enabled.push_back(VK_DYNAMIC_STATE_VIEWPORT);
 684         //ds_enabled.push_back(VK_DYNAMIC_STATE_SCISSOR);
 685         VkPipelineDynamicStateCreateInfo ds;
 686         ds.sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO;
 687         ds.pDynamicStates = ds_enabled.data();
 688         ds.dynamicStateCount = static_cast<uint32_t>(ds_enabled.size());
 689
 690         /* depth tests */
 691         VkPipelineDepthStencilStateCreateInfo dsi;
 692         memset(&dsi, 0, sizeof dsi);
 693         dsi.sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO;
 694         dsi.depthTestEnable = VK_TRUE;
 695         dsi.depthWriteEnable = VK_TRUE;
 696         dsi.depthCompareOp = VK_COMPARE_OP_LESS_OR_EQUAL;
 697         dsi.back.failOp = VK_STENCIL_OP_KEEP;
 698         dsi.back.passOp = VK_STENCIL_OP_KEEP;
 699         dsi.back.compareOp = VK_COMPARE_OP_ALWAYS;
 700         dsi.front = dsi.back;
 701
 702         /* multisampling - must be set even if not used */
 703         VkPipelineMultisampleStateCreateInfo msi;
 704         memset(&msi, 0, sizeof msi);
 705         msi.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO;
 706         msi.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT;
 707
 708         /* vertex input descriptions */
 709         VkVertexInputBindingDescription vib;
 710         memset(&vib, 0, sizeof vib);
 711         vib.stride = sizeof(Vec3);
 712         vib.inputRate = VK_VERTEX_INPUT_RATE_VERTEX;
 713
 714         /* input attr bindings */
 715         VkVertexInputAttributeDescription via[2];
 716         memset(&via, 0, sizeof via);
 717         via[0].format = VK_FORMAT_R32G32B32A32_SFLOAT;
 718
 719         return true;
 720 }
 721
 722 static const char *get_device_name_str(VkPhysicalDeviceType type)
 723 {
 724         switch(type) {
 725         case VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU:
 726                 return "integrated GPU";
 727         case VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU:
 728                 return "discrete GPU";
 729         case VK_PHYSICAL_DEVICE_TYPE_VIRTUAL_GPU:
 730                 return "virtual GPU";
 731         case VK_PHYSICAL_DEVICE_TYPE_CPU:
 732                 return "CPU";
 733         default:
 734                 break;
 735         }
 736         return "unknown";
 737 }
 738
 739 static const char *get_memtype_flags_str(VkMemoryPropertyFlags flags)
 740 {
 741         static char str[128];
 742
 743         str[0] = 0;
 744         if(flags & VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT) {
 745                 strcat(str, "device-local ");
 746         }
 747         if(flags & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) {
 748                 strcat(str, "host-visible ");
 749         }
 750         if(flags & VK_MEMORY_PROPERTY_HOST_COHERENT_BIT) {
 751                 strcat(str, "host-coherent ");
 752         }
 753         if(flags & VK_MEMORY_PROPERTY_HOST_CACHED_BIT) {
 754                 strcat(str, "host-cached ");
 755         }
 756         if(flags & VK_MEMORY_PROPERTY_LAZILY_ALLOCATED_BIT) {
 757                 strcat(str, "lazily-allocated ");
 758         }
 759
 760         if(!*str) {
 761                 strcat(str, "-");
 762         }
 763         return str;
 764 }
 765
 766 static const char *get_queue_flags_str(VkQueueFlags flags)
 767 {
 768         static char str[128];
 769
 770         str[0] = 0;
 771         if(flags & VK_QUEUE_GRAPHICS_BIT) {
 772                 strcat(str, "graphics ");
 773         }
 774         if(flags & VK_QUEUE_COMPUTE_BIT) {
 775                 strcat(str, "compute ");
 776         }
 777         if(flags & VK_QUEUE_TRANSFER_BIT) {
 778                 strcat(str, "transfer ");
 779         }
 780         if(flags & VK_QUEUE_SPARSE_BINDING_BIT) {
 781                 strcat(str, "sparse-binding ");
 782         }
 783         if(!*str) {
 784                 strcat(str, "-");
 785         }
 786         return str;
 787 }
 788
 789 static int ver_major(uint32_t ver)
 790 {
 791         return (ver >> 22) & 0x3ff;
 792 }
 793
 794 static int ver_minor(uint32_t ver)
 795 {
 796         return (ver >> 12) & 0x3ff;
 797 }
 798
 799 static int ver_patch(uint32_t ver)
 800 {
 801         return ver & 0xfff;
 802 }
 803
 804 static const char *get_mem_size_str(long sz)
 805 {
 806         static char str[64];
 807         static const char *unitstr[] = { "bytes", "KB", "MB", "GB", "TB", "PB", 0 };
 808         int uidx = 0;
 809         sz *= 10;
 810
 811         while(sz >= 10240 && unitstr[uidx + 1]) {
 812                 sz /= 1024;
 813                 ++uidx;
 814         }
 815         sprintf(str, "%ld.%ld %s", sz / 10, sz % 10, unitstr[uidx]);
 816         return str;
 817 }