+ gfx_swapbuffers = swapbuffers;
+ gfx_begin_drawing = begin_drawing;
+ gfx_end_drawing = end_drawing;
+
+ return true;
+}
+
+static bool create_swapchain(VkSwapchainKHR *sc)
+{
+ /* surface capabilities */
+ VkSurfaceCapabilitiesKHR scap;
+ if(vkGetPhysicalDeviceSurfaceCapabilitiesKHR(vk_physical, vk_surface, &scap) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to get physical device surface capabilities\n");
+ return false;
+ }
+
+ /* presentation modes */
+ uint32_t prmode_cnt;
+ if(vkGetPhysicalDeviceSurfacePresentModesKHR(vk_physical, vk_surface, &prmode_cnt, 0) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to get physical device surface presentation modes count.\n");
+ return false;
+ }
+
+ if(prmode_cnt == 0) {
+ fprintf(stderr, "Presentation modes not found.\n");
+ return false;
+ }
+
+ VkPresentModeKHR scmode = VK_PRESENT_MODE_FIFO_KHR;
+ VkPresentModeKHR *modes = new VkPresentModeKHR[prmode_cnt];
+
+ if(vkGetPhysicalDeviceSurfacePresentModesKHR(vk_physical, vk_surface, &prmode_cnt, modes) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to get physical device presentation modes.\n");
+ return false;
+ }
+
+ for(uint32_t i=0; i<prmode_cnt; i++) {
+ if(modes[i] == VK_PRESENT_MODE_MAILBOX_KHR) {
+ scmode = VK_PRESENT_MODE_MAILBOX_KHR;
+ break;
+ }
+ if((scmode != VK_PRESENT_MODE_MAILBOX_KHR) && (modes[i] == VK_PRESENT_MODE_IMMEDIATE_KHR)) {
+ //fallback
+ scmode = VK_PRESENT_MODE_IMMEDIATE_KHR;
+ }
+ }
+
+ /* swapchain extents */
+ VkExtent2D scextent;
+ if(scap.currentExtent.width == 0xffffffff || scap.currentExtent.height == 0xffffffff) {
+ scextent.width = win_w;
+ scextent.height = win_h;
+ }
+ else {
+ scextent = scap.currentExtent;
+ win_w = scextent.width;
+ win_h = scextent.height;
+ }
+
+ /* number of swapchain images (on intel that's 3: maybe should hardcode it to 2?) */
+ num_images = scap.minImageCount; //+ 1;
+ /* intel doesn't set the maxImageCount */
+ if(scap.maxImageCount > 0 && num_images > scap.maxImageCount)
+ num_images = scap.maxImageCount;
+
+ printf("num_images : %u\n", num_images);
+ assert(num_images > 0);
+
+ images = new VkImage[num_images];
+ iviews = new VkImageView[num_images];
+
+ /* transform flags */
+ VkSurfaceTransformFlagBitsKHR pre_transf = scap.currentTransform;
+ if(scap.supportedTransforms & VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR)
+ pre_transf = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
+
+ /* find suitable colorspace, format */
+ VkFormat format;
+ VkColorSpaceKHR colorspace;
+
+ VkSurfaceFormatKHR sformat;
+ if(!vku_get_surface_format(vk_physical, vk_surface, &sformat)) {
+ return false;
+ }
+
+ format = sformat.format;
+ colorspace = sformat.colorSpace;
+
+ /* creating the swapchain */
+ VkSwapchainCreateInfoKHR sinfo;
+ memset(&sinfo, 0, sizeof sinfo);
+
+ sinfo.sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR;
+ sinfo.surface = vk_surface;
+ sinfo.minImageCount = num_images;
+ sinfo.imageFormat = format;
+ sinfo.imageColorSpace = colorspace;
+ sinfo.imageExtent = scextent;
+ sinfo.imageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
+ sinfo.preTransform = pre_transf;
+ sinfo.compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
+ sinfo.imageArrayLayers = 1;
+ sinfo.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE;
+ sinfo.presentMode = scmode;
+ sinfo.oldSwapchain = VK_NULL_HANDLE; //TODO
+ sinfo.clipped = VK_TRUE; //TODO
+
+ if(vkCreateSwapchainKHR(vk_device, &sinfo, 0, sc) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to create swapchain.\n");
+ return false;
+ }
+
+ if(vkGetSwapchainImagesKHR(vk_device, *sc, &num_images, 0) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to get the number of the swapchain images.\n");
+ return false;
+ }
+
+ if(vkGetSwapchainImagesKHR(vk_device, *sc, &num_images, images) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to get the swapchain images.\n");
+ return false;
+ }
+
+ VkImageViewCreateInfo ivinf;
+ memset(&ivinf, 0, sizeof ivinf);
+ ivinf.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
+ ivinf.format = format;
+ ivinf.components = {
+ VK_COMPONENT_SWIZZLE_R,
+ VK_COMPONENT_SWIZZLE_G,
+ VK_COMPONENT_SWIZZLE_B,
+ VK_COMPONENT_SWIZZLE_A
+ };
+ ivinf.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
+ ivinf.subresourceRange.levelCount = 1;
+ ivinf.subresourceRange.layerCount = 1;
+ ivinf.viewType = VK_IMAGE_VIEW_TYPE_2D;
+
+ for(uint32_t i=0; i<num_images; i++) {
+ ivinf.image = images[i];
+
+ VkResult res;
+ if((res = vkCreateImageView(vk_device, &ivinf, 0, &iviews[i])) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to create image view %d: %s.\n", i, vku_get_vulkan_error_str(res));
+ return false;
+ }
+ }
+
+ return true;
+}
+
+static bool begin_init_command_buffer(VkCommandBuffer *cb)
+{
+ if(*cb == VK_NULL_HANDLE) {
+ *cb = vku_alloc_cmdbuf(vk_pool, VK_COMMAND_BUFFER_LEVEL_PRIMARY);
+
+ VkCommandBufferInheritanceInfo ciinf;
+ memset(&ciinf, 0, sizeof ciinf);
+ ciinf.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_INHERITANCE_INFO;
+ ciinf.renderPass = VK_NULL_HANDLE;
+ ciinf.framebuffer = VK_NULL_HANDLE;
+ ciinf.occlusionQueryEnable = VK_FALSE;
+
+ VkCommandBufferBeginInfo cbinf;
+ memset(&cbinf, 0, sizeof cbinf);
+ cbinf.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
+ cbinf.pInheritanceInfo = &ciinf;
+
+ if(vkBeginCommandBuffer(*cb, &cbinf) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to begin command buffer.\n");
+ return false;
+ }
+ }
+ return true;
+}
+
+static bool create_zbuffer()
+{
+ VkImageCreateInfo dinfo;
+ memset(&dinfo, 0, sizeof dinfo);
+
+ dinfo.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
+ dinfo.imageType = VK_IMAGE_TYPE_2D;
+ dinfo.format = dformat;
+ dinfo.extent = {(uint32_t)win_w, (uint32_t)win_h, 1};
+ dinfo.mipLevels = 1;
+ dinfo.arrayLayers = 1;
+ dinfo.samples = VK_SAMPLE_COUNT_1_BIT;
+ dinfo.tiling = VK_IMAGE_TILING_OPTIMAL;
+ dinfo.usage = VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT;
+
+ if(vkCreateImage(vk_device, &dinfo, 0, &dimg) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to create depth buffer image.\n");
+ return false;
+ }
+
+ VkMemoryRequirements dmem_reqs;
+ vkGetImageMemoryRequirements(vk_device, dimg, &dmem_reqs);
+
+ gpu_mem = vk_allocate(dmem_reqs.size);
+
+ if(!gpu_mem)
+ return false;
+
+ vkBindImageMemory(vk_device, dimg, gpu_mem, 0);
+
+ if(!vk_image_set_layout(init_buf, dimg, VK_IMAGE_ASPECT_DEPTH_BIT,
+ VK_IMAGE_LAYOUT_UNDEFINED, VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL,
+ (VkAccessFlagBits)0)) {
+ fprintf(stderr, "Failed to set depth buffer layout.\n");
+ return false;
+ }
+
+ VkImageViewCreateInfo div_inf;
+ memset(&div_inf, 0, sizeof div_inf);
+
+ div_inf.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
+ div_inf.image = dimg;
+ div_inf.format = dformat;
+ div_inf.subresourceRange.aspectMask = VK_IMAGE_ASPECT_DEPTH_BIT;
+ div_inf.subresourceRange.levelCount = 1;
+ div_inf.subresourceRange.layerCount = 1;
+ div_inf.viewType = VK_IMAGE_VIEW_TYPE_2D;
+
+ if(vkCreateImageView(vk_device, &div_inf, 0, &dview) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to create image view for depth buffer.\n");
+ return false;
+ }
+
+ return true;
+}
+
+static bool create_renderpass()
+{
+ VkSurfaceFormatKHR sformat;
+ if(!vku_get_surface_format(vk_physical, vk_surface, &sformat)) {
+ fprintf(stderr, "Failed to get surface format.\n");
+ return false;
+ }
+
+ VkAttachmentDescription att[2];
+ memset(&att, 0, (sizeof att[0]) * 2);
+
+ att[0].format = sformat.format;
+ att[0].samples = VK_SAMPLE_COUNT_1_BIT;
+ att[0].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
+ att[0].storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
+ att[0].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
+ att[0].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
+ att[0].initialLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
+ att[0].finalLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
+
+ att[1].format = dformat;
+ att[1].samples = VK_SAMPLE_COUNT_1_BIT;
+ att[1].loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
+ att[1].storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
+ att[1].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
+ att[1].stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
+ att[1].initialLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
+ att[1].finalLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
+
+ VkAttachmentReference cref;
+ memset(&cref, 0, sizeof cref);
+ cref.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
+
+ VkAttachmentReference dref;
+ memset(&dref, 0, sizeof dref);
+ dref.attachment = 1;
+ dref.layout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
+
+ VkSubpassDescription sd;
+ memset(&sd, 0, sizeof sd);
+ sd.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
+ sd.colorAttachmentCount = 1;
+ sd.pColorAttachments = &cref;
+ sd.pDepthStencilAttachment = &dref;
+
+ VkRenderPassCreateInfo rinf;
+ memset(&rinf, 0, sizeof rinf);
+ rinf.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
+ rinf.attachmentCount = 2;
+ rinf.pAttachments = att;
+ rinf.subpassCount = 1;
+ rinf.pSubpasses = &sd;
+
+ if(vkCreateRenderPass(vk_device, &rinf, 0, &rpass) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to create rpass.\n");
+ return false;
+ }
+
+ return true;
+}
+
+static bool create_framebuffers()
+{
+ /* framebuffer attachments */
+ VkImageView fb_att[2];
+ fb_att[1] = dview;
+
+ VkFramebufferCreateInfo fbinf;
+ memset(&fbinf, 0, sizeof fbinf);
+ fbinf.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
+ fbinf.renderPass = rpass;
+ fbinf.attachmentCount = 2;
+ fbinf.pAttachments = fb_att;
+ fbinf.width = win_w;
+ fbinf.height = win_h;
+ fbinf.layers = 1;
+
+ for(int i=0; i<2; i++) {
+ fb_att[0] = iviews[i];
+ if(vkCreateFramebuffer(vk_device, &fbinf, 0, &fbs[i]) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to create framebuffer %i\n", i);
+ return false;
+ }
+ }
+ return true;
+}
+
+static bool create_pipelines()
+{
+ VkDescriptorSetLayoutBinding dslb[1];
+ memset(&dslb[0], 0, sizeof dslb[0]);
+ dslb[0].binding = 0;
+ dslb[0].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER;
+ dslb[0].descriptorCount = 1;
+ dslb[0].stageFlags = VK_SHADER_STAGE_VERTEX_BIT;
+
+ VkDescriptorSetLayoutCreateInfo dslinf;
+ memset(&dslinf, 0, sizeof dslinf);
+ dslinf.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
+ dslinf.bindingCount = 1; //dslb.size();
+ dslinf.pBindings = dslb;
+
+ VkDescriptorSetLayout dsl;
+ if(vkCreateDescriptorSetLayout(vk_device, &dslinf, 0, &dsl) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to create descriptor set layout.\n");
+ return false;
+ }
+
+ VkPipelineLayoutCreateInfo pinf;
+ memset(&pinf, 0, sizeof pinf);
+ pinf.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
+ pinf.setLayoutCount = 1;
+ pinf.pSetLayouts = &dsl;
+
+ VkPipelineLayout pl;
+ if(vkCreatePipelineLayout(vk_device, &pinf, 0, &pl) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to create pipeline layout.\n");
+ return false;
+ }
+
+ VkPipelineCacheCreateInfo pcinf;
+ memset(&pcinf, 0, sizeof pcinf);
+ pcinf.sType = VK_STRUCTURE_TYPE_PIPELINE_CACHE_CREATE_INFO;
+
+ VkPipelineCache pcache;
+ if(vkCreatePipelineCache(vk_device, &pcinf, 0, &pcache) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to create pipeline cache.\n");
+ return false;
+ }
+
+ VkGraphicsPipelineCreateInfo ginf;
+ memset(&ginf, 0, sizeof ginf);
+ ginf.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
+ ginf.stageCount = 2;
+
+ return true;
+}
+
+static bool end_init_command_buffer(VkCommandBuffer *cb)
+{
+ if(vkEndCommandBuffer(*cb) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to end command buffer.\n");
+ return false;
+ }
+
+ VkSubmitInfo si;
+ memset(&si, 0, sizeof si);
+ si.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
+ si.commandBufferCount = 1;
+ si.pCommandBuffers = cb;
+
+ if(vkQueueSubmit(vk_queue, 1, &si, VK_NULL_HANDLE) != VK_SUCCESS) {
+ fprintf(stderr, "Failed to submit null queue.\n");
+ return false;
+ }
+
+ if(vkQueueWaitIdle(vk_queue) != VK_SUCCESS) {
+ fprintf(stderr, "QueueWaitIdle failure!\n");
+ return false;
+ }
+
+ vkFreeCommandBuffers(vk_device, vk_pool, 1, cb);
+ *cb = VK_NULL_HANDLE;