5 #include <vulkan/vulkan.h>
11 #include <vulkan/vulkan_win32.h>
13 /*#include <vulkan/vulkan_xlib.h>*/
14 #include <X11/Xlib-xcb.h>
15 #include <vulkan/vulkan_xcb.h>
35 /* if rpasses[rpidx].vkobj != vkrpass, the framebuf is invalid */
39 VkImageView imgv[MAX_FB_IMGV];
47 static struct rpass *rpasses;
48 static struct framebuf *framebufs;
51 static int create_instance(void);
52 static int create_surface(void);
53 static int choose_phys_dev(void);
54 static int create_device(void);
55 static int create_swapchain(void);
57 static int choose_pixfmt(void);
58 static int eval_pdev_score(VkPhysicalDevice dev);
59 static int have_inst_layer(const char *name);
60 static int have_ext(VkExtensionProperties *ext, int next, const char *name);
67 static VkPhysicalDevice vkpdev;
68 static VkQueueFamilyProperties *qfam;
69 static uint32_t num_qfam;
70 static VkDevice vkdev;
71 static VkSurfaceKHR vksurf;
72 static VkSurfaceCapabilitiesKHR vksurf_caps;
73 static int vksurf_numfmt, vksurf_selfmt;
74 static VkSurfaceFormatKHR *vksurf_fmt;
75 static VkSwapchainKHR vksc;
76 static int vksc_numimg;
77 static VkImage *vksc_img;
78 static VkExtent2D vksc_extent;
79 static VkImageView *vksc_view;
81 static VkLayerProperties *inst_layers;
82 static VkExtensionProperties *inst_ext, *dev_ext;
83 static uint32_t inst_ext_count, dev_ext_count, inst_layers_count;
85 static VkPhysicalDevice *pdev_list;
86 static uint32_t num_pdev;
88 static int have_raytrace, have_debug_report;
90 void vk_init_xwin(Display *d, Window w)
96 int vk_init(unsigned int flags, unsigned int *usedflags)
99 if(create_instance() == -1) return -1;
100 if(create_surface() == -1) return -1;
101 if(choose_phys_dev() == -1) return -1;
102 if(create_device() == -1) return -1;
104 if(initflags != flags) {
106 *usedflags = initflags;
115 void vk_cleanup(void)
124 for(i=0; i<vksc_numimg; i++) {
125 vkDestroyImageView(vkdev, vksc_view[i], 0);
130 vkDestroySwapchainKHR(vkdev, vksc, 0);
134 vkDestroyDevice(vkdev, 0);
138 vkDestroySurfaceKHR(vk, vksurf, 0);
142 vkDestroyInstance(vk, 0);
155 int vk_reshape(int xsz, int ysz)
159 if(vksc && vksc_extent.width == xsz && vksc_extent.height == ysz) {
164 for(i=0; i<vksc_numimg; i++) {
165 vkDestroyImageView(vkdev, vksc_view[i], 0);
168 if(vksc) vkDestroySwapchainKHR(vkdev, vksc, 0);
170 vksc_extent.width = xsz;
171 vksc_extent.height = ysz;
173 if(create_swapchain() == -1) return -1;
175 /* TODO create depth/stencil buffers as needed (initflags) */
179 int vk_find_qfamily(unsigned int flags)
184 if(!qfam) return -1; /* not initialized I guess... */
186 for(i=0; i<num_qfam; i++) {
187 vkGetPhysicalDeviceSurfaceSupportKHR(vkpdev, i, vksurf, &can_pres);
189 if((flags & VKQ_PRESENT) && !can_pres) {
192 if((flags & VKQ_GFX) && !(qfam[i].queueFlags & VK_QUEUE_GRAPHICS_BIT)) {
195 if((flags & VKQ_COMPUTE) && !(qfam[i].queueFlags & VK_QUEUE_COMPUTE_BIT)) {
199 return i; /* found a suitabe queue family */
205 VkQueue vk_getq_fam(int fam, int n)
209 if(fam < 0) return 0;
210 if(n < 0 || n >= qfam[fam].queueCount) {
211 fprintf(stderr, "vk_getq_fam: invalid index %d, family %d has %d queues\n",
212 n, fam, qfam[fam].queueCount);
216 vkGetDeviceQueue(vkdev, fam, n, &q);
220 VkQueue vk_getq(unsigned int flags)
222 return vk_getq_fam(vk_find_qfamily(flags), 0);
225 int vk_create_rpass(void)
228 struct rpass rpass = {0}, *rp = &rpass;
231 rpasses = darr_alloc(0, sizeof *rpasses);
232 darr_push(rpasses, &rpass); /* add dummy rpass */
235 for(i=1; i<darr_size(rpasses); i++) {
236 if(!rpasses[i].used) {
241 /* init renderpass defaults */
243 rp->fmt = vksurf_fmt[vksurf_selfmt].format;
244 rp->zfmt = VK_FORMAT_D24_UNORM_S8_UINT;
252 darr_push(rpasses, rp);
253 return darr_size(rpasses) - 1;
258 void vk_free_rpass(int rp)
260 if(!rpasses || rp < 1 || rp >= darr_size(rpasses)) {
264 if(rpasses[rp].used && rpasses[rp].vkobj) {
265 vkDestroyRenderPass(vkdev, rpasses[rp].vkobj, 0);
267 rpasses[rp].used = 0;
270 void vk_rpass_colorbuf(int rp, int fmt, int n)
272 rpasses[rp].fmt = fmt;
273 rpasses[rp].num_colbuf = n;
274 rpasses[rp].vkobj_valid = 0;
277 void vk_rpass_msaa(int rp, int nsamp)
279 rpasses[rp].num_samples = nsamp;
280 rpasses[rp].vkobj_valid = 0;
283 void vk_rpass_clear(int rp, int clear)
285 rpasses[rp].clear = clear;
286 rpasses[rp].vkobj_valid = 0;
289 VkRenderPass vk_rpass(int rp)
293 VkAttachmentDescription att[17];
294 VkAttachmentReference catref[16], zatref;
295 VkSubpassDescription subpass;
296 VkRenderPassCreateInfo pinf;
300 if(!r->vkobj_valid) {
302 vkDestroyRenderPass(vkdev, r->vkobj, 0);
306 zidx = r->num_colbuf;
307 memset(att, 0, sizeof att);
308 for(i=0; i<r->num_colbuf; i++) {
309 att[i].format = r->fmt;
310 att[i].samples = r->num_samples;
311 att[i].loadOp = r->clear ? VK_ATTACHMENT_LOAD_OP_CLEAR : VK_ATTACHMENT_LOAD_OP_DONT_CARE;
312 att[i].storeOp = VK_ATTACHMENT_STORE_OP_STORE;
313 att[i].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
314 att[i].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
315 att[i].initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
316 att[i].finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
318 att[zidx].format = r->zfmt;
319 att[zidx].samples = 1;
320 att[zidx].loadOp = r->clear ? VK_ATTACHMENT_LOAD_OP_CLEAR : VK_ATTACHMENT_LOAD_OP_DONT_CARE;
321 att[zidx].storeOp = VK_ATTACHMENT_STORE_OP_STORE;
322 att[zidx].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
323 att[zidx].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
324 att[zidx].initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
325 att[zidx].finalLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
327 for(i=0; i<r->num_colbuf; i++) {
328 catref[i].attachment = i;
329 catref[i].layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
331 zatref.attachment = zidx;
332 zatref.layout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
334 memset(&subpass, 0, sizeof subpass);
335 subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
336 subpass.colorAttachmentCount = r->num_colbuf;
337 subpass.pColorAttachments = catref;
338 subpass.pDepthStencilAttachment = &zatref;
340 memset(&pinf, 0, sizeof pinf);
341 pinf.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
342 pinf.attachmentCount = r->num_colbuf + 1;
343 pinf.pAttachments = att;
344 pinf.subpassCount = 1;
345 pinf.pSubpasses = &subpass;
347 if(vkCreateRenderPass(vkdev, &pinf, 0, &r->vkobj) != 0) {
348 fprintf(stderr, "failed to create render pass!\n");
358 int vk_create_fb(void)
361 struct framebuf framebuf = {0}, *fb = &framebuf;
364 framebufs = darr_alloc(0, sizeof *framebufs);
365 darr_push(framebufs, &framebuf); /* add dummy rpass */
368 for(i=1; i<darr_size(framebufs); i++) {
369 if(!framebufs[i].used) {
374 /* init framebuffer defaults */
375 memset(fb, 0, sizeof &fb);
378 if(fb == &framebuf) {
379 darr_push(framebufs, fb);
380 return darr_size(framebufs) - 1;
382 return fb - framebufs;
385 void vk_free_fb(int fb)
387 if(!framebufs || fb < 1 || fb >= darr_size(framebufs)) {
391 if(framebufs[fb].used && framebufs[fb].vkobj) {
392 vkDestroyFramebuffer(vkdev, framebufs[fb].vkobj, 0);
394 framebufs[fb].used = 0;
397 void vk_fb_size(int fb, int x, int y)
399 framebufs[fb].width = x;
400 framebufs[fb].height = y;
401 framebufs[fb].vkobj_valid = 0;
404 void vk_fb_rpass(int fb, int rpass)
406 if(rpass < 0 || rpass >= darr_size(rpasses) || !rpasses[rpass].used) {
407 fprintf(stderr, "vk_fb_rpass: %d is not a valid renderpass\n", rpass);
411 framebufs[fb].rpidx = rpass;
412 if(rpasses[rpass].vkobj_valid) {
413 framebufs[fb].vkrpass = rpasses[rpass].vkobj;
415 framebufs[fb].vkrpass = 0;
417 framebufs[fb].vkobj_valid = 0;
420 void vk_fb_images(int fb, int n, ...)
425 if(n > MAX_FB_IMGV) {
426 fprintf(stderr, "vk_fb_images: %d is too many images\n", n);
432 framebufs[fb].imgv[i] = va_arg(ap, VkImageView);
435 framebufs[fb].num_imgv = n;
436 framebufs[fb].vkobj_valid = 0;
439 VkFramebuffer vk_fb(int fb)
441 VkFramebufferCreateInfo fbinf;
447 if(!(rpass = vk_rpass(f->rpidx))) {
451 if(rpass != f->vkrpass || !f->vkobj_valid) {
454 vkDestroyFramebuffer(vkdev, f->vkobj, 0);
458 memset(&fbinf, 0, sizeof fbinf);
459 fbinf.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
460 fbinf.renderPass = rpass;
461 fbinf.attachmentCount = f->num_imgv;
462 fbinf.pAttachments = f->imgv;
463 fbinf.width = f->width;
464 fbinf.height = f->height;
466 if(vkCreateFramebuffer(vkdev, &fbinf, 0, &f->vkobj) != 0) {
467 fprintf(stderr, "vk_fb: failed to create framebuffer\n");
476 #define ARRSZ(arr) (sizeof arr / sizeof *arr)
477 static const char *known_layer_list[] = {
478 "VK_LAYER_GOOGLE_threading",
479 "VK_LAYER_LUNARG_parameter_validation",
480 "VK_LAYER_LUNARG_object_tracker",
481 "VK_LAYER_LUNARG_image",
482 "VK_LAYER_LUNARG_core_validation",
483 "VK_LAYER_LUNARG_swapchain",
484 "VK_LAYER_GOOGLE_unique_objects"
490 } known_instext_list[] = {
491 {"VK_KHR_surface", 1},
493 {"VK_KHR_win32_surface", 1},
495 /*{"VK_KHR_xlib_surface", 1},*/
496 {"VK_KHR_xcb_surface", 1},
498 {"VK_KHR_debug_report", 0}
504 } known_devext_list[] = {
505 {"VK_KHR_swapchain", 1},
506 {"VK_KHR_acceleration_structure", 0},
507 {"VK_KHR_ray_tracing_pipeline", 0}
510 static int create_instance(void)
512 int i, nlayers = 0, next = 0;
513 VkInstanceCreateInfo instinf;
514 VkApplicationInfo appinf;
515 const char *layers[ARRSZ(known_layer_list)];
516 const char *ext[ARRSZ(known_instext_list)];
519 vkEnumerateInstanceVersion(&apiver);
520 printf("Vulkan API version: %d.%d.%d\n", (apiver >> 22) & 0x7f,
521 (apiver >> 12) & 0x3ff, apiver & 0xfff);
523 memset(&appinf, 0, sizeof appinf);
524 appinf.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
525 appinf.pApplicationName = "vkray";
526 appinf.pEngineName = "vkray";
527 appinf.apiVersion = apiver;
529 vkEnumerateInstanceLayerProperties(&inst_layers_count, 0);
530 inst_layers = malloc_nf(inst_layers_count * sizeof *inst_layers);
531 vkEnumerateInstanceLayerProperties(&inst_layers_count, inst_layers);
533 vkEnumerateInstanceExtensionProperties(0, &inst_ext_count, 0);
534 inst_ext = malloc_nf(inst_ext_count * sizeof *inst_ext);
535 vkEnumerateInstanceExtensionProperties(0, &inst_ext_count, inst_ext);
538 for(i=0; i<inst_layers_count; i++) {
539 printf(" - %s: %s\n", inst_layers[i].layerName, inst_layers[i].description);
541 printf("Instance extensions:\n");
542 for(i=0; i<inst_ext_count; i++) {
543 printf(" - %s\n", inst_ext[i].extensionName);
546 have_debug_report = have_ext(inst_ext, inst_ext_count, "VK_KHR_debug_report");
548 for(i=0; i<ARRSZ(known_layer_list); i++) {
549 if(have_inst_layer(known_layer_list[i])) {
550 layers[nlayers++] = known_layer_list[i];
553 for(i=0; i<ARRSZ(known_instext_list); i++) {
554 if(have_ext(inst_ext, inst_ext_count, known_instext_list[i].name)) {
555 ext[next++] = known_instext_list[i].name;
556 } else if(known_instext_list[i].required) {
557 fprintf(stderr, "Vulkan implementation lacks required instance extension: %s\n",
558 known_instext_list[i].name);
563 memset(&instinf, 0, sizeof instinf);
564 instinf.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
565 instinf.pApplicationInfo = &appinf;
566 instinf.enabledLayerCount = nlayers;
567 instinf.ppEnabledLayerNames = layers;
568 instinf.enabledExtensionCount = next;
569 instinf.ppEnabledExtensionNames = ext;
570 if(vkCreateInstance(&instinf, 0, &vk) != 0) {
571 fprintf(stderr, "failed to create vulkan instance\n");
578 static int create_surface(void)
581 VkXlibSurfaceCreateInfoKHR xinf = {0};
582 xinf.sType = VK_STRUCTURE_TYPE_XLIB_SURFACE_CREATE_INFO_KHR;
586 if(vkCreateXlibSurfaceKHR(vk, &xinf, 0, &vksurf) != 0) {
587 fprintf(stderr, "failed to create Xlib window surface\n");
591 VkXcbSurfaceCreateInfoKHR xinf = {0};
592 xinf.sType = VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR;
593 xinf.connection = XGetXCBConnection(dpy);
594 xinf.window = (xcb_window_t)win;
596 if(vkCreateXcbSurfaceKHR(vk, &xinf, 0, &vksurf) != 0) {
597 fprintf(stderr, "failed to create XCB window surface\n");
603 int choose_phys_dev(void)
605 uint32_t i, num_pdev, score, best_score, best_dev;
606 VkPhysicalDevice *pdev;
607 VkPhysicalDeviceProperties pdevprop;
610 vkEnumeratePhysicalDevices(vk, &num_pdev, 0);
612 fprintf(stderr, "no vulkan devices found\n");
615 pdev = malloc_nf(num_pdev * sizeof *pdev);
616 vkEnumeratePhysicalDevices(vk, &num_pdev, pdev);
618 printf("Found %d physical devices\n", num_pdev);
622 for(i=0; i<num_pdev; i++) {
623 if((score = eval_pdev_score(pdev[i])) && score > best_score) {
628 vkGetPhysicalDeviceProperties(pdev[i], &pdevprop);
629 printf(" %d: %s (score: %d)\n", i, pdevprop.deviceName, score);
632 fprintf(stderr, "no suitable vulkan device found\n");
636 vkpdev = pdev[best_dev];
640 vkGetPhysicalDeviceQueueFamilyProperties(vkpdev, &num_qfam, 0);
641 qfam = malloc_nf(num_qfam * sizeof *qfam);
642 vkGetPhysicalDeviceQueueFamilyProperties(vkpdev, &num_qfam, qfam);
649 static int create_device(void)
652 VkDeviceQueueCreateInfo qinf = {0};
653 VkPhysicalDeviceFeatures feat = {0};
654 VkDeviceCreateInfo devinf = {0};
655 const char *ext[ARRSZ(known_devext_list) + 16];
658 vkEnumerateDeviceExtensionProperties(vkpdev, 0, &dev_ext_count, 0);
659 dev_ext = malloc_nf(dev_ext_count * sizeof *dev_ext);
660 vkEnumerateDeviceExtensionProperties(vkpdev, 0, &dev_ext_count, dev_ext);
663 for(i=0; i<ARRSZ(known_devext_list); i++) {
664 if(have_ext(dev_ext, dev_ext_count, known_devext_list[i].name)) {
665 ext[num_ext++] = known_devext_list[i].name;
666 } else if(known_devext_list[i].required) {
667 fprintf(stderr, "Vulkan device lacks required extension: %s\n",
668 known_devext_list[i].name);
673 if(initflags & VKINIT_RAY) {
674 if(have_ext(dev_ext, dev_ext_count, "VK_KHR_acceleration_structure") &&
675 have_ext(dev_ext, dev_ext_count, "VK_KHR_ray_tracing_pipeline")) {
676 ext[num_ext++] = "VK_KHR_acceleration_structure";
677 ext[num_ext++] = "VK_KHR_ray_tracing_pipeline";
679 initflags &= ~VKINIT_RAY;
683 qinf.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
684 qinf.queueFamilyIndex = vk_find_qfamily(VKQ_GFX | VKQ_PRESENT);
686 qinf.pQueuePriorities = &prio;
688 devinf.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
689 devinf.pQueueCreateInfos = &qinf;
690 devinf.queueCreateInfoCount = 1;
691 devinf.pEnabledFeatures = &feat;
692 devinf.enabledExtensionCount = num_ext;
693 devinf.ppEnabledExtensionNames = ext;
695 if(vkCreateDevice(vkpdev, &devinf, 0, &vkdev) != 0) {
696 fprintf(stderr, "failed to create vulkan device\n");
702 static int create_swapchain(void)
706 VkSwapchainCreateInfoKHR scinf = {0};
707 VkImageViewCreateInfo ivinf;
709 if(vksc_extent.width <= 0 || vksc_extent.height <= 0) {
713 scinf.sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR;
714 scinf.surface = vksurf;
715 scinf.minImageCount = 2;
716 scinf.imageFormat = vksurf_fmt[vksurf_selfmt].format;
717 scinf.imageColorSpace = vksurf_fmt[vksurf_selfmt].colorSpace;
718 scinf.imageExtent = vksc_extent;
719 scinf.imageArrayLayers = 1;
720 scinf.imageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
721 scinf.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE;
722 scinf.preTransform = vksurf_caps.currentTransform;
723 scinf.compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
724 scinf.presentMode = VK_PRESENT_MODE_FIFO_KHR;
725 scinf.clipped = VK_TRUE;
727 if(vkCreateSwapchainKHR(vkdev, &scinf, 0, &vksc) != 0) {
728 fprintf(stderr, "failed to create swapchain\n");
732 if(!vksc_img || vksc_numimg != num) {
734 vkGetSwapchainImagesKHR(vkdev, vksc, &num, 0);
735 vksc_img = malloc_nf(num * sizeof *vksc_img);
736 vkGetSwapchainImagesKHR(vkdev, vksc, &num, vksc_img);
738 if(!vksc_view || vksc_numimg != num) {
740 vksc_view = malloc_nf(num * sizeof *vksc_view);
744 for(i=0; i<num; i++) {
745 memset(&ivinf, 0, sizeof ivinf);
746 ivinf.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
747 ivinf.image = vksc_img[i];
748 ivinf.format = vksurf_fmt[vksurf_selfmt].format;
749 ivinf.components.r = VK_COMPONENT_SWIZZLE_IDENTITY;
750 ivinf.components.g = VK_COMPONENT_SWIZZLE_IDENTITY;
751 ivinf.components.b = VK_COMPONENT_SWIZZLE_IDENTITY;
752 ivinf.components.a = VK_COMPONENT_SWIZZLE_IDENTITY;
753 ivinf.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
754 ivinf.subresourceRange.levelCount = 1;
755 ivinf.subresourceRange.layerCount = 1;
756 ivinf.viewType = VK_IMAGE_VIEW_TYPE_2D;
758 if(vkCreateImageView(vkdev, &ivinf, 0, vksc_view + i) != 0) {
759 fprintf(stderr, "failed to create image view (%d)\n", i);
767 static int eval_pdev_score(VkPhysicalDevice dev)
770 uint32_t i, num_fmt, num_qfam, num_ext;
771 VkQueueFamilyProperties *qfam;
772 VkExtensionProperties *ext;
773 VkPhysicalDeviceProperties prop;
774 VkPhysicalDeviceFeatures feat;
775 VkSurfaceFormatKHR *sfmt;
778 vkGetPhysicalDeviceProperties(dev, &prop);
779 vkGetPhysicalDeviceFeatures(dev, &feat);
781 /* check if we have the swapchain extension */
782 vkEnumerateDeviceExtensionProperties(dev, 0, &num_ext, 0);
783 ext = malloc_nf(num_ext * sizeof *ext);
784 vkEnumerateDeviceExtensionProperties(dev, 0, &num_ext, ext);
786 if(!have_ext(ext, num_ext, "VK_KHR_swapchain")) {
791 /* populate format and present modes arrays, and make sure we have some of each */
792 vkGetPhysicalDeviceSurfaceFormatsKHR(dev, vksurf, &num_fmt, 0);
797 sfmt = malloc_nf(num_fmt * sizeof *sfmt);
798 vkGetPhysicalDeviceSurfaceFormatsKHR(dev, vksurf, &num_fmt, sfmt);
800 vkGetPhysicalDeviceSurfaceCapabilitiesKHR(dev, vksurf, &vksurf_caps);
802 /* find a queue family which can do graphics and can present */
803 vkGetPhysicalDeviceQueueFamilyProperties(dev, &num_qfam, 0);
804 qfam = malloc_nf(num_qfam * sizeof *qfam);
805 vkGetPhysicalDeviceQueueFamilyProperties(dev, &num_qfam, qfam);
807 for(i=0; i<num_qfam; i++) {
808 vkGetPhysicalDeviceSurfaceSupportKHR(dev, i, vksurf, &can_pres);
809 if(qfam[i].queueCount && (qfam[i].queueFlags & VK_QUEUE_GRAPHICS_BIT) && can_pres) {
814 switch(prop.deviceType) {
815 case VK_PHYSICAL_DEVICE_TYPE_VIRTUAL_GPU:
818 case VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU:
821 case VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU:
828 if(initflags & VKINIT_RAY) {
829 if(have_ext(ext, num_ext, "VK_KHR_acceleration_structure") &&
830 have_ext(ext, num_ext, "VK_KHR_ray_tracing_pipeline")) {
841 static int choose_pixfmt(void)
843 static const VkFormat pref[] = {
844 VK_FORMAT_B8G8R8_UNORM,
845 VK_FORMAT_R8G8B8_UNORM,
846 VK_FORMAT_B8G8R8A8_UNORM,
847 VK_FORMAT_R8G8B8A8_UNORM
852 vkGetPhysicalDeviceSurfaceFormatsKHR(vkpdev, vksurf, &num_fmt, 0);
853 if(!num_fmt) return -1;
854 vksurf_fmt = malloc_nf(num_fmt * sizeof *vksurf_fmt);
855 vkGetPhysicalDeviceSurfaceFormatsKHR(vkpdev, vksurf, &num_fmt, vksurf_fmt);
858 for(i=0; i<num_fmt; i++) {
859 if(vksurf_fmt[i].colorSpace != VK_COLOR_SPACE_SRGB_NONLINEAR_KHR) {
862 for(j=0; j<sizeof pref / sizeof *pref; j++) {
863 if(vksurf_fmt[i].format == pref[j]) {
865 vksurf_numfmt = num_fmt;
876 static int have_inst_layer(const char *name)
879 for(i=0; i<inst_layers_count; i++) {
880 if(strcmp(inst_layers[i].layerName, name) == 0) {
887 static int have_ext(VkExtensionProperties *ext, int next, const char *name)
890 for(i=0; i<next; i++) {
891 if(strcmp(ext[i].extensionName, name) == 0) {