#include #include #include #include #include #include #define SDL_MAIN_HANDLED #define VK_USE_PLATFORM_XCB_KHR #include #include #include /* #define VMA_STATIC_VULKAN_FUNCTIONS 0 */ /* #define VMA_DYNAMIC_VULKAN_FUNCTIONS 1 */ /* #include "vk_mem_alloc.h" */ #define STB_IMAGE_IMPLEMENTATION #include #define FAST_OBJ_IMPLEMENTATION #include #define CGLTF_IMPLEMENTATION #include #include "cplusplus.h" //#include "vkutil.h" #include "state.h" #define VMA_STATIC_VULKAN_FUNCTIONS 0 #define VMA_DYNAMIC_VULKAN_FUNCTIONS 1 #include "vk_mem_alloc.h" #define MODEL_PATH "assets/human.obj" #define TEXTURE_PATH "assets/viking_room.png" #define PARTICLE_COUNT 2048 void load_model_obj(); void load_model_gltf(); // embedded clgm library uint32_t currentFrame = 0; state_t s; /* Vertex vertices[] = { */ /* (Vertex) { (V2) {-0.2f, -0.5f}, (V3) {0.0f, 1.0f, 0.0f}}, */ /* (Vertex) { (V2) {0.5f, 0.3f}, (V3) {0.0f, 0.0f, 1.0f}}, */ /* (Vertex) { (V2) {-0.5f, 0.7f}, (V3) {1.0f, 0.0f, 0.0f}}, */ /* (Vertex) { (V2) {0.2f, -0.5f}, (V3) {0.0f, 0.0f, 1.0f}}, */ /* (Vertex) { (V2) {0.5f, 0.7f}, (V3) {1.0f, 0.0f, 0.0f}}, */ /* (Vertex) { (V2) {-0.5f, 0.3f}, (V3) {0.0f, 1.0f, 0.0f}}, */ /* (Vertex) { (V2) {0.0f, -0.5f}, (V3) {1.0f, 0.0f, 0.0f}}, */ /* (Vertex) { (V2) {0.5f, 0.5f}, (V3) {0.0f, 1.0f, 0.0f}}, */ /* (Vertex) { (V2) {-0.5f, 0.5f}, (V3) {0.0f, 0.0f, 1.0f}}, */ /* }; */ /* const int VERTICES_SIZE = VK_ARRAY_LEN(vertices); */ /* const uint16_t indices[] = { */ /* 0, 1, 2, 3, 4, 5, 6, 7, 8, */ /* }; */ /* const int INDICES_SIZE = VK_ARRAY_LEN(indices); */ Vertex vertices[] = { (Vertex) { (V3) {-0.5f, -0.5f, 0.0f}, (V3) {1.0f, 0.0f, 0.0f}, (V2) {0.0f, 0.0f}}, (Vertex) { (V3) {0.5f, -0.5f, 0.0f}, (V3) {0.0f, 1.0f, 0.0f}, (V2) {1.0f, 0.0f}}, (Vertex) { (V3) {0.5f, 0.5f, 0.0f}, (V3) {0.0f, 0.0f, 1.0f}, (V2) {1.0f, 1.0f}}, (Vertex) { (V3) {-0.5f, 0.5f, 0.0f}, (V3) {1.0f, 1.0f, 1.0f}, (V2) {0.0f, 1.0f}}, (Vertex) { (V3) {-0.5f, -0.5f, -0.5f}, (V3) {1.0f, 0.0f, 0.0f}, (V2) {0.0f, 0.0f}}, (Vertex) { (V3) {0.5f, -0.5f, -0.5f}, (V3) {0.0f, 1.0f, 0.0f}, (V2) {1.0f, 0.0f}}, (Vertex) { (V3) {0.5f, 0.5f, -0.5f}, (V3) {0.0f, 0.0f, 1.0f}, (V2) {1.0f, 1.0f}}, (Vertex) { (V3) {-0.5f, 0.5f, -0.5f}, (V3) {1.0f, 1.0f, 1.0f}, (V2) {0.0f, 1.0f}}, (Vertex) { (V3) {0.0f, 0.0f, 0.5f}, (V3) {1.0f, 1.0f, 1.0f}, (V2) {0.0f, 0.0f}}, }; const int VERTICES_SIZE = VK_ARRAY_LEN(vertices); const uint32_t indices[] = { 0, 1, 2, 2, 3, 0, 4, 5, 6, 6, 7, 4, 8, 5, 4 }; const int INDICES_SIZE = VK_ARRAY_LEN(indices); /* Vertex vertices[] = { */ /* (Vertex) { (V3) {0}, (V3) {0}, (V2) {0}}, */ /* (Vertex) { (V3) {1}, (V3) {0}, (V2) {0}}, */ /* (Vertex) { (V3) {2}, (V3) {0}, (V2) {0}}, */ /* (Vertex) { (V3) {3}, (V3) {0}, (V2) {0}}, */ /* (Vertex) { (V3) {4}, (V3) {0}, (V2) {0}}, */ /* (Vertex) { (V3) {5}, (V3) {0}, (V2) {0}}, */ /* }; */ /* const int VERTICES_SIZE = VK_ARRAY_LEN(vertices); */ /* const uint16_t indices[] = { */ /* 0,0,0,0,0,0 */ /* }; */ /* const int INDICES_SIZE = VK_ARRAY_LEN(indices); */ static int resizing_event_watcher(void *data, SDL_Event *event) { (void) data; if (event->type == SDL_WINDOWEVENT && event->window.event == SDL_WINDOWEVENT_RESIZED) { s.sdl_window_resized = 1; } return 0; } void move_towards(vec3 position, vec3 front, float step) { // Calculate the direction vector from position to front float direction[3] = { front[0] - position[0], front[1] - position[1], front[2] - position[2] }; // Normalize the direction vector glm_normalize(direction); // Move position along the direction vector by the step amount position[0] += direction[0] * step; position[1] += direction[1] * step; position[2] += direction[2] * step; } bool init() { if (SDL_Init(SDL_INIT_VIDEO) < 0) { vk_log(VK_INFO, "SDL could not initialize! SDL_Error: %s\n", SDL_GetError()); return false; } s.vk.window = SDL_CreateWindow("Vulkanizater", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, s.window_w, s.window_h, SDL_WINDOW_SHOWN | SDL_WINDOW_RESIZABLE | SDL_WINDOW_VULKAN); if (s.vk.window == NULL) { vk_log(VK_INFO, "Window could not be created! SDL_Error: %s\n", SDL_GetError()); return false; } SDL_AddEventWatch(resizing_event_watcher,NULL); return true; } void closeSDL() { SDL_DestroyWindow(s.vk.window); s.vk.window = NULL; SDL_Quit(); } static VKAPI_ATTR VkBool32 VKAPI_CALL debugCallback(VkDebugUtilsMessageSeverityFlagBitsEXT messageSeverity, VkDebugUtilsMessageTypeFlagsEXT messageType, const VkDebugUtilsMessengerCallbackDataEXT* pCallbackData, void* pUserData) { (void) messageSeverity; (void) messageType; (void) pUserData; vk_log(VK_ERROR, "validation layer: %s\n", pCallbackData->pMessage); return VK_FALSE; } void vulkan_setup_debug_messenger() { if (!enable_validation_layers) return; VkDebugUtilsMessengerCreateInfoEXT createInfo = {0}; createInfo.sType = VK_STRUCTURE_TYPE_DEBUG_UTILS_MESSENGER_CREATE_INFO_EXT; createInfo.messageSeverity = VK_DEBUG_UTILS_MESSAGE_SEVERITY_VERBOSE_BIT_EXT | VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT | VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT; createInfo.messageType = VK_DEBUG_UTILS_MESSAGE_TYPE_GENERAL_BIT_EXT | VK_DEBUG_UTILS_MESSAGE_TYPE_VALIDATION_BIT_EXT | VK_DEBUG_UTILS_MESSAGE_TYPE_PERFORMANCE_BIT_EXT; createInfo.pfnUserCallback = debugCallback; createInfo.pUserData = NULL; // Optional // TODO: func pointers returned are NULL s.pfnCreateDebugUtilsMessengerEXT = (PFN_vkCreateDebugUtilsMessengerEXT)vkGetInstanceProcAddr(s.vk.instance, "vkCreateDebugUtilsMessengerEXT"); s.pfnDestroyDebugUtilsMessengerEXT = (PFN_vkDestroyDebugUtilsMessengerEXT)vkGetInstanceProcAddr(s.vk.instance, "vkDestroyDebugUtilsMessengerEXT"); VkResult result = s.pfnCreateDebugUtilsMessengerEXT(s.vk.instance, &createInfo, NULL, &s.vk_debug_messenger); if (result != VK_SUCCESS) { vk_log(VK_WARN, "failed to set up debug messenger!\n"); } else { vk_log(VK_INFO, "Debug messanger created!\n"); } } typedef struct QueueFamilyIndices { uint32_t graphicsAndComputeFamily; bool graphicsFlag; uint32_t presentFamily; bool presentFlag; } QueueFamilyIndices; bool vulkan_queue_family_check_flags(QueueFamilyIndices x) { return x.graphicsFlag && x.presentFlag; } QueueFamilyIndices vulkan_find_queue_families(VkPhysicalDevice device) { QueueFamilyIndices indices; indices.graphicsFlag = false; indices.presentFlag = false; uint32_t queueFamilyCount = 0; vkGetPhysicalDeviceQueueFamilyProperties(device, &queueFamilyCount, NULL); VkQueueFamilyProperties queueFamilies[queueFamilyCount]; vkGetPhysicalDeviceQueueFamilyProperties(device, &queueFamilyCount, queueFamilies); for (uint32_t i = 0; i < queueFamilyCount; i++) { if ((queueFamilies[i].queueFlags & VK_QUEUE_GRAPHICS_BIT) && (queueFamilies[i].queueFlags & VK_QUEUE_COMPUTE_BIT)) { indices.graphicsAndComputeFamily = i; indices.graphicsFlag = true; } VkBool32 presentSupport = false; vkGetPhysicalDeviceSurfaceSupportKHR(device, i, s.vk.surface, &presentSupport); if (presentSupport) { indices.presentFamily = i; indices.presentFlag = true; } if (vulkan_queue_family_check_flags(indices)) break; } return indices; } void move_relative(vec3 position, vec3 front, float step, int x) { // Calculate the direction vector from position to front float direction_vec[3] = { front[0] - position[0], front[1] - position[1], front[2] - position[2] }; // Normalize the direction vector glm_normalize(direction_vec); // Calculate the right vector vec3 right; glm_vec3_cross(GLM_ZUP, direction_vec, right); glm_normalize(right); // Move front according to the specified direction if (x) { front[0] += right[0] * step; front[1] += right[1] * step; front[2] += right[2] * step; } else { // Calculate the up vector vec3 up; glm_vec3_cross(right, direction_vec, up); glm_normalize(up); front[0] += up[0] * step; front[1] += up[1] * step; front[2] += up[2] * step; } } void update_camera(float xoffset, float yoffset) { s.camera.yaw += xoffset; s.camera.pitch += yoffset; // Make sure that when pitch is out of bounds, the screen doesn't get flipped /* if (s.camera.pitch > 89.0f) */ /* s.camera.pitch = 89.0f; */ /* if (s.camera.pitch < -89.0f) */ /* s.camera.pitch = -89.0f; */ move_relative(s.camera.pos, s.camera.front, xoffset / 100.0, 1 /* x axis */); move_relative(s.camera.pos, s.camera.front, yoffset / 100.0, 0 /* y axis */); /* vec3 front; */ /* front[0] = -sin(glm_rad(s.camera.yaw)) * cos(glm_rad(s.camera.pitch)); */ /* front[1] = sin(glm_rad(s.camera.pitch)); */ /* front[2] = -cos(glm_rad(s.camera.yaw)) * cos(glm_rad(s.camera.pitch)); */ /* glm_normalize_to(front, s.camera.front); */ } void mouseCallback(SDL_Event *event) { if (event->type != SDL_MOUSEMOTION) return; float xoffset = event->motion.xrel; float yoffset = -event->motion.yrel; // Reversed since y-coordinates range from bottom to top float sensitivity = 0.1f; // Change this value to your liking xoffset *= sensitivity; yoffset *= sensitivity; if (s.mouse_pressed) { update_camera(xoffset, yoffset); } else if (s.middle_click) { vec4 _up = {0, 1, 0, 0}; vec4 _right = {1, 0, 0, 0}; vec4 up, right; glm_mat4_mulv(s.ubo.model, _up, up); glm_mat4_mulv(s.ubo.model, _right, right); glm_rotate(s.ubo.model, glm_rad(xoffset * glm_rad(90.0f)), GLM_ZUP); glm_rotate(s.ubo.model, glm_rad(yoffset * glm_rad(90.0f)), GLM_XUP); } return; } VkShaderModule createShaderModule(const char * code, long size) { VkShaderModuleCreateInfo createInfo = {0}; createInfo.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO; createInfo.codeSize = size; createInfo.pCode = (const uint32_t *)code; VkShaderModule shaderModule; if (vkCreateShaderModule(s.vk.device, &createInfo, NULL, &shaderModule) != VK_SUCCESS) { vk_log(VK_ERROR, "failed to create shader module!\n"); } return shaderModule; } shaderc_compilation_result_t load_compile_shader_data(const char * path, shaderc_shader_kind shader_kind) { FILE* file = fopen(path, "r"); if (!file) { vk_log(VK_ERROR, "SHADER COMPILATION: Failed to open file: %s\n", path); return NULL; } fseek(file, 0, SEEK_END); long glsl_length = ftell(file); fseek(file, 0, SEEK_SET); char* glsl_src = (char*)malloc(glsl_length + 1); if (!glsl_src) { vk_log(VK_ERROR, "SHADER COMPILATION: Failed to allocate memory\n"); fclose(file); return NULL; } fread(glsl_src, 1, glsl_length, file); glsl_src[glsl_length] = '\0'; fclose(file); shaderc_compiler_t compiler = shaderc_compiler_initialize(); if (!compiler) { vk_log(VK_ERROR, "SHADER COMPILATION: Failed to initialize shader compiler\n"); free(glsl_src); return NULL; } shaderc_compile_options_t options = shaderc_compile_options_initialize(); shaderc_compilation_result_t result = shaderc_compile_into_spv(compiler, glsl_src, glsl_length, shader_kind, path, "main", options); if (shaderc_result_get_compilation_status(result) != shaderc_compilation_status_success) { vk_log(VK_ERROR, "SHADER COMPILATION: error: %s\n", shaderc_result_get_error_message(result)); shaderc_result_release(result); shaderc_compiler_release(compiler); free(glsl_src); return NULL; } shaderc_compiler_release(compiler); free(glsl_src); return result; } void vulkan_create_graphics_pipeline(VkPolygonMode polygon_mode) { shaderc_compilation_result_t vert_result = load_compile_shader_data("src/shader.vert", shaderc_vertex_shader); if (!vert_result) { vk_log(VK_ERROR, "Can't load vertex shader\n"); if (s.prev_vert_result) { vert_result = s.prev_vert_result; } } if (s.prev_vert_result && vert_result != s.prev_vert_result) shaderc_result_release(s.prev_vert_result); s.prev_vert_result = vert_result; shaderc_compilation_result_t frag_result = load_compile_shader_data("src/shader.frag", shaderc_fragment_shader); if (!frag_result) { vk_log(VK_ERROR, "Can't load fragment shader\n"); if (s.prev_frag_result) { frag_result = s.prev_frag_result; } } if (s.prev_frag_result && frag_result != s.prev_frag_result) shaderc_result_release(s.prev_frag_result); s.prev_frag_result = frag_result; const char * vert_data = shaderc_result_get_bytes(vert_result); long vert_size = shaderc_result_get_length(vert_result); const char * frag_data = shaderc_result_get_bytes(frag_result); long frag_size = shaderc_result_get_length(frag_result); vk_log(VK_INFO, "Shaders loaded\n"); VkShaderModule vertShaderModule = createShaderModule(vert_data, vert_size); VkShaderModule fragShaderModule = createShaderModule(frag_data, frag_size); VkPipelineShaderStageCreateInfo vertShaderStageInfo = {0}; vertShaderStageInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO; vertShaderStageInfo.stage = VK_SHADER_STAGE_VERTEX_BIT; vertShaderStageInfo.module = vertShaderModule; vertShaderStageInfo.pName = "main"; VkPipelineShaderStageCreateInfo fragShaderStageInfo = {0}; fragShaderStageInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO; fragShaderStageInfo.stage = VK_SHADER_STAGE_FRAGMENT_BIT; fragShaderStageInfo.module = fragShaderModule; fragShaderStageInfo.pName = "main"; VkPipelineShaderStageCreateInfo shaderStages[] = {vertShaderStageInfo, fragShaderStageInfo}; VkDynamicState dynamicStates[] = { VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR, VK_DYNAMIC_STATE_DEPTH_TEST_ENABLE, VK_DYNAMIC_STATE_DEPTH_WRITE_ENABLE, // TODO Make polygon mode dynamic //VK_DYNAMIC_STATE_POLYGON_MODE_EXT }; VkPipelineDynamicStateCreateInfo dynamicState = {0}; dynamicState.sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO; dynamicState.dynamicStateCount = VK_ARRAY_LEN(dynamicStates); dynamicState.pDynamicStates = dynamicStates; VkVertexInputBindingDescription bindingDescription = {0}; bindingDescription.binding = 0; bindingDescription.stride = sizeof(Vertex); bindingDescription.inputRate = VK_VERTEX_INPUT_RATE_VERTEX; VkVertexInputAttributeDescription attributeDescriptions[3] = {0}; attributeDescriptions[0].binding = 0; attributeDescriptions[0].location = 0; attributeDescriptions[0].format = VK_FORMAT_R32G32B32_SFLOAT; attributeDescriptions[0].offset = offsetof(Vertex, pos); attributeDescriptions[1].binding = 0; attributeDescriptions[1].location = 1; attributeDescriptions[1].format = VK_FORMAT_R32G32B32_SFLOAT; attributeDescriptions[1].offset = offsetof(Vertex, normal); attributeDescriptions[2].binding = 0; attributeDescriptions[2].location = 2; attributeDescriptions[2].format = VK_FORMAT_R32G32_SFLOAT; attributeDescriptions[2].offset = offsetof(Vertex, texCoord); VkPipelineVertexInputStateCreateInfo vertexInputInfo = {0}; vertexInputInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO; vertexInputInfo.vertexBindingDescriptionCount = 1; vertexInputInfo.pVertexBindingDescriptions = &bindingDescription; vertexInputInfo.vertexAttributeDescriptionCount = VK_ARRAY_LEN(attributeDescriptions); vertexInputInfo.pVertexAttributeDescriptions = attributeDescriptions; VkPipelineInputAssemblyStateCreateInfo inputAssembly = {}; inputAssembly.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO; inputAssembly.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST; inputAssembly.primitiveRestartEnable = VK_FALSE; VkViewport viewport = {0}; viewport.x = 0.0f; viewport.y = 0.0f; viewport.width = (float) s.vk.swapchain.extent.width; viewport.height = (float) s.vk.swapchain.extent.height; viewport.minDepth = 0.0f; viewport.maxDepth = 1.0f; VkRect2D scissor = {0}; scissor.offset = (VkOffset2D){0, 0}; scissor.extent = s.vk.swapchain.extent; VkPipelineViewportStateCreateInfo viewportState = {0}; viewportState.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO; viewportState.viewportCount = 1; viewportState.pViewports = &viewport; viewportState.scissorCount = 1; viewportState.pScissors = &scissor; VkPipelineRasterizationStateCreateInfo rasterizer = {0}; rasterizer.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO; rasterizer.depthClampEnable = VK_FALSE; rasterizer.rasterizerDiscardEnable = VK_FALSE; rasterizer.polygonMode = polygon_mode; rasterizer.lineWidth = 1.0f; rasterizer.cullMode = VK_CULL_MODE_NONE; //rasterizer.cullMode = VK_CULL_MODE_BACK_BIT; rasterizer.frontFace = VK_FRONT_FACE_COUNTER_CLOCKWISE; rasterizer.depthBiasEnable = VK_FALSE; rasterizer.depthBiasConstantFactor = 0.0f; // Optional rasterizer.depthBiasClamp = 0.0f; // Optional rasterizer.depthBiasSlopeFactor = 0.0f; // Optional VkPipelineMultisampleStateCreateInfo multisampling = {0}; multisampling.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO; multisampling.sampleShadingEnable = VK_FALSE; multisampling.rasterizationSamples = s.vk.msaa_samples; multisampling.minSampleShading = 1.0f; // Optional multisampling.pSampleMask = NULL; // Optional multisampling.alphaToCoverageEnable = VK_FALSE; // Optional multisampling.alphaToOneEnable = VK_FALSE; // Optional VkPipelineColorBlendAttachmentState colorBlendAttachment = {0}; colorBlendAttachment.colorWriteMask = VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT | VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT; colorBlendAttachment.blendEnable = VK_TRUE; colorBlendAttachment.srcColorBlendFactor = VK_BLEND_FACTOR_SRC_ALPHA; colorBlendAttachment.dstColorBlendFactor = VK_BLEND_FACTOR_ONE_MINUS_SRC_ALPHA; colorBlendAttachment.colorBlendOp = VK_BLEND_OP_ADD; colorBlendAttachment.srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE; colorBlendAttachment.dstAlphaBlendFactor = VK_BLEND_FACTOR_ZERO; colorBlendAttachment.alphaBlendOp = VK_BLEND_OP_ADD; VkPipelineColorBlendStateCreateInfo colorBlending = {0}; colorBlending.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO; colorBlending.logicOpEnable = VK_TRUE; colorBlending.logicOp = VK_LOGIC_OP_COPY; // Optional colorBlending.attachmentCount = 1; colorBlending.pAttachments = &colorBlendAttachment; colorBlending.blendConstants[0] = 0.0f; // Optional colorBlending.blendConstants[1] = 0.0f; // Optional colorBlending.blendConstants[2] = 0.0f; // Optional colorBlending.blendConstants[3] = 0.0f; // Optional VkPipelineLayoutCreateInfo pipelineLayoutInfo = {0}; pipelineLayoutInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO; pipelineLayoutInfo.setLayoutCount = 1; pipelineLayoutInfo.pSetLayouts = &s.vk_descriptor_set_layout; pipelineLayoutInfo.pushConstantRangeCount = 0; // Optional pipelineLayoutInfo.pPushConstantRanges = NULL; // Optional if (vkCreatePipelineLayout(s.vk.device, &pipelineLayoutInfo, NULL, &s.graphics_pipeline.layout) != VK_SUCCESS) { vk_log(VK_ERROR, "failed to create pipeline layout!\n"); } VkPipelineDepthStencilStateCreateInfo depthStencil = {0}; depthStencil.sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO; depthStencil.depthTestEnable = VK_TRUE; depthStencil.depthWriteEnable = VK_TRUE; depthStencil.depthBoundsTestEnable = VK_FALSE; depthStencil.stencilTestEnable = VK_FALSE; depthStencil.depthCompareOp = VK_COMPARE_OP_LESS; depthStencil.minDepthBounds = 0.0f; // Optional depthStencil.maxDepthBounds = 1.0f; // Optional depthStencil.front = (VkStencilOpState){0}; // Optional depthStencil.back = (VkStencilOpState){0}; // Optional VkPipelineRenderingCreateInfo pipeline_rendering_create_info = { .sType = VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO_KHR, .colorAttachmentCount = 1, .pColorAttachmentFormats = &s.vk.swapchain.image_format, .depthAttachmentFormat = findDepthFormat(s.vk), }; VkGraphicsPipelineCreateInfo pipelineInfo = {0}; pipelineInfo.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO; pipelineInfo.stageCount = 2; pipelineInfo.pStages = shaderStages; pipelineInfo.pNext = &pipeline_rendering_create_info; pipelineInfo.pVertexInputState = &vertexInputInfo; pipelineInfo.pInputAssemblyState = &inputAssembly; pipelineInfo.pViewportState = &viewportState; pipelineInfo.pRasterizationState = &rasterizer; pipelineInfo.pMultisampleState = &multisampling; pipelineInfo.pDepthStencilState = &depthStencil; pipelineInfo.pColorBlendState = &colorBlending; pipelineInfo.pDynamicState = &dynamicState; pipelineInfo.layout = s.graphics_pipeline.layout; pipelineInfo.renderPass = VK_NULL_HANDLE; pipelineInfo.subpass = 0; pipelineInfo.basePipelineHandle = VK_NULL_HANDLE; // Optional pipelineInfo.basePipelineIndex = -1; // Optional if (vkCreateGraphicsPipelines(s.vk.device, VK_NULL_HANDLE, 1, &pipelineInfo, NULL, &s.graphics_pipeline.handle) != VK_SUCCESS) { vk_log(VK_ERROR, "failed to create graphics pipeline!\n"); } if (s.prev_vert_result != vert_result) { shaderc_result_release(vert_result); } if (s.prev_frag_result != frag_result) { shaderc_result_release(frag_result); } vkDestroyShaderModule(s.vk.device, fragShaderModule, NULL); vkDestroyShaderModule(s.vk.device, vertShaderModule, NULL); } void vulkan_create_command_buffer() { // TODO Find a way to group allocation for (int i = 0; i < MAX_FRAMES_IN_FLIGHT; i++) { VkCommandBufferAllocateInfo allocInfo = {0}; allocInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO; allocInfo.commandPool = s.vk.command_pool; allocInfo.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY; allocInfo.commandBufferCount = 1; VK_CHECK(vkAllocateCommandBuffers(s.vk.device, &allocInfo, &s.frames[i].vk_command_buffer)); } } void recordCommandBuffer(VkCommandBuffer commandBuffer, uint32_t imageIndex) { VkCommandBufferBeginInfo beginInfo = {0}; beginInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO; beginInfo.flags = 0; // Optional beginInfo.pInheritanceInfo = NULL; // Optional VK_CHECK(vkBeginCommandBuffer(commandBuffer, &beginInfo)); vkCmdSetDepthTestEnable(commandBuffer, 1); vkCmdSetDepthWriteEnable(commandBuffer, 1); // TODO Make polygon mode dynamic //vkCmdSetPolygonModeEXT(commandBuffer, s.polygon_mode); vks_transition_image_layout_info transition_info = { 0 }; transition_info.image = s.vk.swapchain.images[imageIndex]; transition_info.format = VK_FORMAT_R8G8B8A8_SRGB; transition_info.srcAccessMask = 0; transition_info.dstAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT; transition_info.srcStageMask = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT; transition_info.dstStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT; transition_info.oldLayout = VK_IMAGE_LAYOUT_UNDEFINED; transition_info.newLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL; transition_info.mipLevels = 1; vks_transition_image_layout(s.vk, &transition_info); VkRenderingAttachmentInfo colorAttachment = {0}; colorAttachment.sType = VK_STRUCTURE_TYPE_RENDERING_ATTACHMENT_INFO; colorAttachment.imageView = s.vk.color_image.view; colorAttachment.imageLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL; colorAttachment.resolveMode = VK_RESOLVE_MODE_AVERAGE_BIT; colorAttachment.resolveImageView = s.vk.swapchain.image_views[imageIndex]; colorAttachment.resolveImageLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL; colorAttachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR; colorAttachment.storeOp = VK_ATTACHMENT_STORE_OP_STORE; colorAttachment.clearValue.color = (VkClearColorValue){{0.0f, 0.0f, 0.0f, 1.0f}}; VkRenderingAttachmentInfo depthAttachment = {0}; depthAttachment.sType = VK_STRUCTURE_TYPE_RENDERING_ATTACHMENT_INFO; depthAttachment.imageView = s.vk.depth_image.view; depthAttachment.imageLayout = VK_IMAGE_LAYOUT_DEPTH_ATTACHMENT_OPTIMAL; depthAttachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR; depthAttachment.storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE; depthAttachment.clearValue.depthStencil = (VkClearDepthStencilValue){1.0f, 0u}; VkRenderingInfo renderingInfo = {}; renderingInfo.sType = VK_STRUCTURE_TYPE_RENDERING_INFO; renderingInfo.renderArea = (VkRect2D){{0, 0}, s.vk.swapchain.extent}; renderingInfo.layerCount = 1; renderingInfo.colorAttachmentCount = 1; renderingInfo.pColorAttachments = &colorAttachment; renderingInfo.pDepthAttachment = &depthAttachment; vkCmdBeginRendering(commandBuffer, &renderingInfo); vkCmdBindPipeline(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, s.graphics_pipeline.handle); VkViewport viewport = {0}; viewport.x = 0.0f; viewport.y = 0.0f; viewport.width = (float)(s.vk.swapchain.extent.width); viewport.height = (float)(s.vk.swapchain.extent.height); viewport.minDepth = 0.0f; viewport.maxDepth = 1.0f; vkCmdSetViewport(commandBuffer, 0, 1, &viewport); VkRect2D scissor = {0}; scissor.offset = (VkOffset2D){0, 0}; scissor.extent = s.vk.swapchain.extent; vkCmdSetScissor(commandBuffer, 0, 1, &scissor); VkBuffer vertexBuffers[] = {s.vertex_buffer.handle}; VkDeviceSize offsets[] = {0}; vkCmdBindVertexBuffers(commandBuffer, 0, 1, vertexBuffers, offsets); vkCmdBindIndexBuffer(commandBuffer, s.index_buffer.handle, 0, VK_INDEX_TYPE_UINT32); vkCmdBindDescriptorSets(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, s.graphics_pipeline.layout, 0, 1, &s.frames[currentFrame].vk_descriptor_set, 0, NULL); vkCmdDrawIndexed(commandBuffer, s.indices_count, 1, 0, 0, 0); imgui_draw(); // does this need to be here? imgui_draw_cmd(commandBuffer); vkCmdEndRendering(commandBuffer); transition_info.srcAccessMask = VK_ACCESS_COLOR_ATTACHMENT_WRITE_BIT; transition_info.dstAccessMask = 0; transition_info.srcStageMask = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT; transition_info.dstStageMask = VK_PIPELINE_STAGE_BOTTOM_OF_PIPE_BIT; transition_info.oldLayout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL; transition_info.newLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR; vks_transition_image_layout(s.vk, &transition_info); VK_CHECK(vkEndCommandBuffer(commandBuffer)); } void vulkan_create_sync_objects() { VkSemaphoreCreateInfo semaphoreInfo = {0}; semaphoreInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO; VkFenceCreateInfo fenceInfo = {0}; fenceInfo.sType = VK_STRUCTURE_TYPE_FENCE_CREATE_INFO; fenceInfo.flags = VK_FENCE_CREATE_SIGNALED_BIT; for (size_t i = 0; i < MAX_FRAMES_IN_FLIGHT; i++) { VK_CHECK(vkCreateSemaphore(s.vk.device, &semaphoreInfo, NULL, &s.frames[i].image_available_semaphore)); VK_CHECK(vkCreateSemaphore(s.vk.device, &semaphoreInfo, NULL, &s.frames[i].render_finished_semaphore)); VK_CHECK(vkCreateFence(s.vk.device, &fenceInfo, NULL, &s.frames[i].in_flight_fence)); } } void vulkan_create_vertex_buffer() { VkDeviceSize bufferSize = sizeof(s.vertices[0]) * s.vertices_count; /* VkDeviceSize bufferSize = sizeof(vertices[0]) * VERTICES_SIZE; */ VkBufferCreateInfo bufferInfo = { 0 }; bufferInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO; bufferInfo.size = bufferSize; bufferInfo.usage = VK_BUFFER_USAGE_TRANSFER_DST_BIT | VK_BUFFER_USAGE_VERTEX_BUFFER_BIT; bufferInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE; VmaAllocationCreateInfo allocCreateInfo = {0}; allocCreateInfo.usage = VMA_MEMORY_USAGE_AUTO; allocCreateInfo.flags = VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT; vmaCreateBuffer(s.vk.allocator, &bufferInfo, &allocCreateInfo, &s.vertex_buffer.handle, &s.vertex_buffer.allocation, NULL); vmaCopyMemoryToAllocation(s.vk.allocator, s.vertices, s.vertex_buffer.allocation, 0, (size_t)bufferSize); } void vulkan_create_index_buffer() { VkDeviceSize bufferSize = sizeof(s.indices[0]) * s.indices_count; /* VkDeviceSize bufferSize = sizeof(indices[0]) * INDICES_SIZE; */ VkBufferCreateInfo bufferInfo = { 0 }; bufferInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO; bufferInfo.size = bufferSize; bufferInfo.usage = VK_BUFFER_USAGE_TRANSFER_DST_BIT | VK_BUFFER_USAGE_INDEX_BUFFER_BIT; bufferInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE; VmaAllocationCreateInfo allocCreateInfo = {0}; allocCreateInfo.usage = VMA_MEMORY_USAGE_AUTO; allocCreateInfo.flags = VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT; vmaCreateBuffer(s.vk.allocator, &bufferInfo, &allocCreateInfo, &s.index_buffer.handle, &s.index_buffer.allocation, NULL); vmaCopyMemoryToAllocation(s.vk.allocator, s.indices, s.index_buffer.allocation, 0, (size_t)bufferSize); } void vulkan_create_descriptor_set_layout() { VkDescriptorSetLayoutBinding uboLayoutBinding = {0}; uboLayoutBinding.binding = 0; uboLayoutBinding.descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER; uboLayoutBinding.descriptorCount = 1; uboLayoutBinding.stageFlags = VK_SHADER_STAGE_ALL; //uboLayoutBinding.stageFlags = VK_SHADER_STAGE_VERTEX_BIT | VK_SHADER_STAGE_FRAGMENT_BIT; uboLayoutBinding.pImmutableSamplers = NULL; // optional VkDescriptorSetLayoutBinding samplerLayoutBinding = {0}; samplerLayoutBinding.binding = 1; samplerLayoutBinding.descriptorCount = 1; samplerLayoutBinding.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER; samplerLayoutBinding.pImmutableSamplers = NULL; samplerLayoutBinding.stageFlags = VK_SHADER_STAGE_FRAGMENT_BIT; VkDescriptorSetLayoutBinding bindings[2] = {uboLayoutBinding, samplerLayoutBinding}; VkDescriptorSetLayoutCreateInfo layoutInfo = {0}; layoutInfo.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO; layoutInfo.bindingCount = VK_ARRAY_LEN(bindings); layoutInfo.pBindings = bindings; VK_CHECK(vkCreateDescriptorSetLayout(s.vk.device, &layoutInfo, NULL, &s.vk_descriptor_set_layout)); } void vulkan_create_uniform_buffers() { VkDeviceSize bufferSize = sizeof(UniformBufferObject); for (size_t i = 0; i < MAX_FRAMES_IN_FLIGHT; i++) { VkBufferCreateInfo bufferInfo = { 0 }; bufferInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO; bufferInfo.size = bufferSize; bufferInfo.usage = VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT; bufferInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE; VmaAllocationCreateInfo allocCreateInfo = {0}; allocCreateInfo.usage = VMA_MEMORY_USAGE_AUTO; allocCreateInfo.flags = VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT | VMA_ALLOCATION_CREATE_MAPPED_BIT; //if (properties & VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT) VmaAllocationInfo allocInfo; vmaCreateBuffer(s.vk.allocator, &bufferInfo, &allocCreateInfo, &s.frames[i].uniform_buffer.handle, &s.frames[i].uniform_buffer.allocation, &allocInfo); s.frames[i].uniform_buffer_mapped = allocInfo.pMappedData; } } void vulkan_create_descriptor_pool() { VkDescriptorPoolSize poolSizes[3] = {0}; poolSizes[0].type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER; poolSizes[0].descriptorCount = MAX_FRAMES_IN_FLIGHT; poolSizes[1].type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER; poolSizes[1].descriptorCount = MAX_FRAMES_IN_FLIGHT; poolSizes[2].type = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER; poolSizes[2].descriptorCount = (uint32_t)(MAX_FRAMES_IN_FLIGHT) * 2; VkDescriptorPoolCreateInfo poolInfo = {0}; poolInfo.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO; poolInfo.poolSizeCount = VK_ARRAY_LEN(poolSizes); poolInfo.pPoolSizes = poolSizes; poolInfo.maxSets = MAX_FRAMES_IN_FLIGHT; VK_CHECK(vkCreateDescriptorPool(s.vk.device, &poolInfo, NULL, &s.vk_descriptor_pool)); } void vulkan_create_descriptor_sets() { VkDescriptorSetLayout layouts[MAX_FRAMES_IN_FLIGHT] = {0}; for (int i = 0; i < MAX_FRAMES_IN_FLIGHT; i++) { layouts[i] = s.vk_descriptor_set_layout; } // TODO Find a way to group allocation for (size_t i = 0; i < MAX_FRAMES_IN_FLIGHT; i++) { VkDescriptorSetAllocateInfo allocInfo = {0}; allocInfo.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO; allocInfo.descriptorPool = s.vk_descriptor_pool; allocInfo.descriptorSetCount = 1; allocInfo.pSetLayouts = layouts; VK_CHECK(vkAllocateDescriptorSets(s.vk.device, &allocInfo, &s.frames[i].vk_descriptor_set)); } for (size_t i = 0; i < MAX_FRAMES_IN_FLIGHT; i++) { VkDescriptorBufferInfo bufferInfo = {0}; bufferInfo.buffer = s.frames[i].uniform_buffer.handle; bufferInfo.offset = 0; bufferInfo.range = sizeof(UniformBufferObject); VkWriteDescriptorSet descriptorWrites[2] = {0}; descriptorWrites[0].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET; descriptorWrites[0].dstSet = s.frames[i].vk_descriptor_set; descriptorWrites[0].dstBinding = 0; descriptorWrites[0].dstArrayElement = 0; descriptorWrites[0].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER; descriptorWrites[0].descriptorCount = 1; descriptorWrites[0].pBufferInfo = &bufferInfo; VkDescriptorImageInfo imageInfo = {0}; imageInfo.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL; imageInfo.imageView = s.texture_image.view; imageInfo.sampler = s.vk_texture_sampler; descriptorWrites[1].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET; descriptorWrites[1].dstSet = s.frames[i].vk_descriptor_set; descriptorWrites[1].dstBinding = 1; descriptorWrites[1].dstArrayElement = 0; descriptorWrites[1].descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER; descriptorWrites[1].descriptorCount = 1; descriptorWrites[1].pImageInfo = &imageInfo; /* VkDescriptorBufferInfo storageBufferInfoLastFrame = {0}; */ /* storageBufferInfoLastFrame.buffer = s.frames[(i - 1) % MAX_FRAMES_IN_FLIGHT].vk_shader_storage_buffer; */ /* storageBufferInfoLastFrame.offset = 0; */ /* storageBufferInfoLastFrame.range = sizeof(Particle) * PARTICLE_COUNT; */ /* descriptorWrites[2].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET; */ /* descriptorWrites[2].dstSet = s.frames[i].vk_compute_descriptor_set; */ /* descriptorWrites[2].dstBinding = 1; */ /* descriptorWrites[2].dstArrayElement = 0; */ /* descriptorWrites[2].descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER; */ /* descriptorWrites[2].descriptorCount = 1; */ /* descriptorWrites[2].pBufferInfo = &storageBufferInfoLastFrame; */ /* VkDescriptorBufferInfo storageBufferInfoCurrentFrame = {0}; */ /* storageBufferInfoCurrentFrame.buffer = s.frames[i].vk_shader_storage_buffer; */ /* storageBufferInfoCurrentFrame.offset = 0; */ /* storageBufferInfoCurrentFrame.range = sizeof(Particle) * PARTICLE_COUNT; */ /* descriptorWrites[3].sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET; */ /* descriptorWrites[3].dstSet = s.frames[i].vk_compute_descriptor_set; */ /* descriptorWrites[3].dstBinding = 2; */ /* descriptorWrites[3].dstArrayElement = 0; */ /* descriptorWrites[3].descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER; */ /* descriptorWrites[3].descriptorCount = 1; */ /* descriptorWrites[3].pBufferInfo = &storageBufferInfoCurrentFrame; */ vkUpdateDescriptorSets(s.vk.device, VK_ARRAY_LEN(descriptorWrites), descriptorWrites, 0, NULL); } } void recreate_graphics_pipeline() { vks_recreate_swapchain(&s.vk); vkDestroyPipeline(s.vk.device, s.graphics_pipeline.handle, NULL); vkDestroyPipelineLayout(s.vk.device, s.graphics_pipeline.layout, NULL); vulkan_create_graphics_pipeline(s.polygon_mode); } int polygon_mode_n = 3; VkPolygonMode polygon_modes[3] = {VK_POLYGON_MODE_FILL, VK_POLYGON_MODE_LINE, VK_POLYGON_MODE_POINT}; int toggle = 0; void handle_input(bool * quit) { SDL_Event e; while (SDL_PollEvent(&e) != 0) { imgui_proc_event(&e); // User requests quit if (e.type == SDL_QUIT) { *quit = true; } // User presses a key else if (e.type == SDL_KEYDOWN) { switch (e.key.keysym.sym) { case SDLK_w: // s.camera.pos[0] += 0.1f; move_towards(s.camera.front, s.camera.pos, -0.1f); move_towards(s.camera.pos, s.camera.front, 0.1f); break; case SDLK_s: //s.camera.pos[0] -= 0.1f; move_towards(s.camera.front, s.camera.pos, 0.1f); move_towards(s.camera.pos, s.camera.front, -0.1f); break; case SDLK_a: move_relative(s.camera.front, s.camera.pos, -0.1f, 1); move_relative(s.camera.pos, s.camera.front, 0.1f, 1); break; case SDLK_d: move_relative(s.camera.front, s.camera.pos, 0.1f, 1); move_relative(s.camera.pos, s.camera.front, -0.1f, 1); break; case SDLK_q: move_relative(s.camera.front, s.camera.pos, 0.1f, 0); move_relative(s.camera.pos, s.camera.front, 0.1f, 0); break; case SDLK_e: move_relative(s.camera.front, s.camera.pos, -0.1f, 0); move_relative(s.camera.pos, s.camera.front, -0.1f, 0); break; case SDLK_g: // reload shaders recreate_graphics_pipeline(); break; case SDLK_z: // toggle polygon mode polygon_mode_n = (polygon_mode_n + 1) % 3; s.polygon_mode = polygon_modes[polygon_mode_n]; recreate_graphics_pipeline(); break; case SDLK_l: s.rotate = s.rotate ? 0 : 1; break; case SDLK_m: vkDeviceWaitIdle(s.vk.device); free(s.vertices); free(s.indices); /* if (!strcmp(s.model_path, "assets/human.obj")) */ /* strcpy(s.model_path, "assets/viking_room.obj"); */ /* else if (!strcmp(s.model_path, "assets/viking_room.obj")) */ /* strcpy(s.model_path, "assets/monkey.obj"); */ /* else */ /* strcpy(s.model_path, "assets/human.obj"); */ if (toggle) { strcpy(s.model_path, "assets/viking_room.obj"); load_model_obj(); toggle = 0; } else { toggle = 1; load_model_gltf(); } vkDestroyBuffer(s.vk.device, s.vertex_buffer.handle, NULL); vkFreeMemory(s.vk.device, s.vertex_buffer.memory, NULL); vkDestroyBuffer(s.vk.device, s.index_buffer.handle, NULL); vkFreeMemory(s.vk.device, s.index_buffer.memory, NULL); vulkan_create_vertex_buffer(); vulkan_create_index_buffer(); break; case SDLK_r: s.camera.pos[0] = 1.0f; s.camera.pos[1] = 1.0f; s.camera.pos[2] = 1.0f; s.camera.front[0] = 0.0f; s.camera.front[1] = 0.0f; s.camera.front[2] = 0.0f; s.camera.up[0] = 0.0f; s.camera.up[1] = 0.0f; s.camera.up[2] = 1.0f; s.camera.yaw = 0.0f; s.camera.pitch = 90.0f; s.camera.lastX = 400.0f; s.camera.lastY = 300.0f; s.camera.fov = 45.0f; glm_mat4_identity(s.ubo.model); s.zoom = 10; update_camera(0,0); break; } } else if (e.type == SDL_MOUSEWHEEL) { if(e.wheel.y > 0) // scroll up { s.zoom -= 1; } else if(e.wheel.y < 0) // scroll down { s.zoom += 1; if (s.zoom == -100) s.zoom = 1; } } else if (e.type == SDL_MOUSEBUTTONDOWN) { if (e.button.button != 2) { s.mouse_pressed = 1; } else { s.middle_click = 1; } } else if (e.type == SDL_MOUSEBUTTONUP) { if (e.button.button != 2) { s.mouse_pressed = 0; } else { s.middle_click = 0; } } mouseCallback(&e); } } void vulkan_create_texture_image() { int texWidth, texHeight, texChannels; stbi_uc* pixels = stbi_load(TEXTURE_PATH, &texWidth, &texHeight, &texChannels, STBI_rgb_alpha); VkDeviceSize imageSize = texWidth * texHeight * 4; s.vk_mip_levels = (uint32_t)floor(log2(fmax(texWidth, texHeight))) + 1; if (!pixels) { vk_log(VK_ERROR, "failed to load texture image!\n"); } VkBufferCreateInfo bufferInfo = { 0 }; bufferInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO; bufferInfo.size = imageSize; bufferInfo.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT; bufferInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE; VmaAllocationCreateInfo allocCreateInfo = {0}; allocCreateInfo.usage = VMA_MEMORY_USAGE_AUTO; allocCreateInfo.flags = VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT; vks_buffer stagingBuffer = {0}; vmaCreateBuffer(s.vk.allocator, &bufferInfo, &allocCreateInfo, &stagingBuffer.handle, &stagingBuffer.allocation, NULL); vmaCopyMemoryToAllocation(s.vk.allocator, pixels, stagingBuffer.allocation, 0, (size_t)imageSize); stbi_image_free(pixels); vks_create_image(s.vk, texWidth, texHeight, s.vk_mip_levels, VK_FORMAT_R8G8B8A8_SRGB, VK_IMAGE_TILING_OPTIMAL, VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, VK_SAMPLE_COUNT_1_BIT, &s.texture_image); vks_transition_image_layout_info transition_info = { 0 }; transition_info.image = s.texture_image.handle; transition_info.format = VK_FORMAT_R8G8B8A8_SRGB; transition_info.srcAccessMask = 0; transition_info.dstAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT; transition_info.srcStageMask = VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT; transition_info.dstStageMask = VK_PIPELINE_STAGE_TRANSFER_BIT; transition_info.oldLayout = VK_IMAGE_LAYOUT_UNDEFINED; transition_info.newLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL; transition_info.mipLevels = s.vk_mip_levels; vks_transition_image_layout(s.vk, &transition_info); vks_copy_buffer_to_image(s.vk, stagingBuffer.handle, s.texture_image.handle, (uint32_t)texWidth, (uint32_t)texHeight); vks_generate_mipmaps(s.vk, s.texture_image.handle, VK_FORMAT_R8G8B8A8_SRGB, texWidth, texHeight, s.vk_mip_levels); transition_info.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT; transition_info.dstAccessMask = VK_ACCESS_SHADER_READ_BIT; transition_info.srcStageMask = VK_PIPELINE_STAGE_TRANSFER_BIT; transition_info.dstStageMask = VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT; transition_info.oldLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL; transition_info.newLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL; vks_transition_image_layout(s.vk, &transition_info); vmaDestroyBuffer(s.vk.allocator, stagingBuffer.handle, stagingBuffer.allocation); s.texture_image.view = vks_create_image_view(s.vk, s.texture_image.handle, VK_FORMAT_R8G8B8A8_SRGB, VK_IMAGE_ASPECT_COLOR_BIT, s.vk_mip_levels); } void vulkan_create_texture_sampler() { VkSamplerCreateInfo samplerInfo = {0}; samplerInfo.sType = VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO; samplerInfo.magFilter = VK_FILTER_LINEAR; samplerInfo.minFilter = VK_FILTER_LINEAR; samplerInfo.addressModeU = VK_SAMPLER_ADDRESS_MODE_REPEAT; samplerInfo.addressModeV = VK_SAMPLER_ADDRESS_MODE_REPEAT; samplerInfo.addressModeW = VK_SAMPLER_ADDRESS_MODE_REPEAT; samplerInfo.anisotropyEnable = VK_TRUE; VkPhysicalDeviceProperties properties = {0}; vkGetPhysicalDeviceProperties(s.vk.physical_device, &properties); samplerInfo.maxAnisotropy = properties.limits.maxSamplerAnisotropy; samplerInfo.borderColor = VK_BORDER_COLOR_INT_OPAQUE_BLACK; samplerInfo.unnormalizedCoordinates = VK_FALSE; samplerInfo.compareEnable = VK_FALSE; samplerInfo.compareOp = VK_COMPARE_OP_ALWAYS; samplerInfo.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR; samplerInfo.mipLodBias = 0.0f; samplerInfo.minLod = 0.0f; samplerInfo.maxLod = VK_LOD_CLAMP_NONE; VK_CHECK(vkCreateSampler(s.vk.device, &samplerInfo, NULL, &s.vk_texture_sampler)); } void load_model_obj() { fastObjMesh *m = fast_obj_read(s.model_path); if (!m) { vk_log(VK_ERROR, "Can't load object\n"); } s.indices_count = m->index_count; s.indices = (uint32_t *)malloc(s.indices_count * sizeof(uint32_t)); s.vertices_count = 0; if (m->group_count > 1) { vk_log(VK_WARN, "fast_obj Mesh with groups > 1 not supported."); } /* Since blender exports objs indexed we use those same indices for our indexed draw call. */ s.vertices = (Vertex *)malloc(s.indices_count * sizeof(Vertex)); /* Count indexs and vertices */ size_t c = 0; for (size_t ii = 0; ii < m->group_count; ii++) { const fastObjGroup *grp = &m->groups[ii]; for (unsigned int jj = 0; jj < grp->face_count; jj++) { unsigned int fv = m->face_vertices[grp->face_offset + jj]; for (unsigned int kk = 0; kk < fv; kk++) { /* position index */ fastObjIndex mi = m->indices[grp->index_offset + c]; uint32_t mip = m->indices[grp->index_offset + c].p - 1; /* make index start from zero */ /* flag if we've seen the index*/ int index_seen = 0; for (size_t i = 0; i < c; i++) { if (mip == s.indices[i]) { index_seen = 1; break; } } s.indices[c] = mip; if (!index_seen) { int index = mi.p - 1; /* zero indexed */ if (mi.p) { s.vertices[index].pos.x = m->positions[3 * mi.p + 0]; s.vertices[index].pos.y = m->positions[3 * mi.p + 1]; s.vertices[index].pos.z = m->positions[3 * mi.p + 2]; } if (mi.t) { s.vertices[index].texCoord.x = m->texcoords[2 * mi.t + 0]; s.vertices[index].texCoord.y = 1.0f - m->texcoords[2 * mi.t + 1]; } if (mi.n) { s.vertices[index].normal.x = m->normals[3 * mi.n + 0]; s.vertices[index].normal.y = m->normals[3 * mi.n + 1]; s.vertices[index].normal.z = m->normals[3 * mi.n + 2]; } /* If not seen, incremet vertices */ s.vertices_count++; } c++; } } } vk_log(VK_INFO, "[obj] %s: Loaded %ld vertices %ld indices\n", s.model_path, s.vertices_count, s.indices_count); fast_obj_destroy(m); } void load_model_gltf() { // TODO maybe copy the raylib implemenetation char * path = "assets/monkey.glb"; cgltf_options options; memset(&options, 0, sizeof(cgltf_options)); cgltf_data* data = NULL; cgltf_result result = cgltf_parse_file(&options, path, &data); if (result == cgltf_result_success) result = cgltf_load_buffers(&options, data, path); else { vk_log(VK_ERROR, "Can't load %s\n", path); } if (result == cgltf_result_success) result = cgltf_validate(data); if (data->meshes_count < 1) { cgltf_free(data); return; } for (cgltf_size i = 0; i < data->meshes_count; ++i) { cgltf_mesh *mesh = &data->meshes[i]; for (cgltf_size j = 0; j < mesh->primitives_count; ++j) { cgltf_primitive* primitive = &mesh->primitives[j]; cgltf_accessor* index_accessor = primitive->indices; if (index_accessor) { s.indices_count = index_accessor->count; s.indices = (uint32_t *)malloc(s.indices_count * sizeof(uint32_t)); // Read indices for (cgltf_size k = 0; k < index_accessor->count; ++k) { s.indices[k] = cgltf_accessor_read_index(index_accessor, k); } } // Find the position attribute accessor for (cgltf_size k = 0; k < primitive->attributes_count; ++k) { if (primitive->attributes[k].type == cgltf_attribute_type_position) { cgltf_accessor* position_accessor = primitive->attributes[k].data; s.vertices_count = position_accessor->count; s.vertices = (Vertex *)malloc(s.vertices_count * sizeof(Vertex)); // Read vertex positions for (cgltf_size k = 0; k < position_accessor->count; ++k) { cgltf_accessor_read_float(position_accessor, k, (cgltf_float *)(&s.vertices[k].pos), 3); } } if (primitive->attributes[k].type == cgltf_attribute_type_texcoord) { cgltf_accessor* texcoord_accessor = primitive->attributes[k].data; // Read texture coordinates for (cgltf_size k = 0; k < texcoord_accessor->count; ++k) { cgltf_accessor_read_float(texcoord_accessor, k, (cgltf_float *)(&s.vertices[k].texCoord), 2); } } if (primitive->attributes[k].type == cgltf_attribute_type_normal) { cgltf_accessor* color_accessor = primitive->attributes[k].data; // Read texture coordinates for (cgltf_size k = 0; k < color_accessor->count; ++k) { cgltf_accessor_read_float(color_accessor, k, (cgltf_float *)(&s.vertices[k].normal), 3); } } } } } vk_log(VK_INFO, "[glTF] %s: Loaded %ld vertices %ld indices\n", path, s.vertices_count, s.indices_count); cgltf_free(data); } float rand_float() { return rand() / (float)RAND_MAX; } void vulkan_create_compute_stuff() { shaderc_compilation_result_t comp_result = load_compile_shader_data("src/shader.comp", shaderc_compute_shader); if (!comp_result) { vk_log(VK_ERROR, "Can't load compupte shader\n"); if (s.prev_comp_result) { comp_result = s.prev_comp_result; } } if (s.prev_comp_result && comp_result != s.prev_comp_result) shaderc_result_release(s.prev_comp_result); s.prev_comp_result = comp_result; const char * comp_data = shaderc_result_get_bytes(comp_result); long comp_size = shaderc_result_get_length(comp_result); VkShaderModule compShaderModule = createShaderModule(comp_data, comp_size); VkPipelineShaderStageCreateInfo computeShaderStageInfo = {0}; computeShaderStageInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO; computeShaderStageInfo.stage = VK_SHADER_STAGE_COMPUTE_BIT; computeShaderStageInfo.module = compShaderModule; computeShaderStageInfo.pName = "main"; srand((unsigned int)time(NULL)); Particle particles[PARTICLE_COUNT]; int width, height; SDL_GetWindowSize(s.vk.window, &width, &height); for (int i = 0; i < PARTICLE_COUNT; i++) { float r = 0.25f * sqrtf(rand_float()); float theta = rand_float() * 2 * 3.14159265358979323846; float x = r * cosf(theta) * height / width; float y = r * sinf(theta); particles[i].position[0] = x; particles[i].position[1] = y; vec2 norm; glm_vec2_copy((vec2){x, y}, norm); glm_vec2_normalize(norm); particles[i].velocity[0] = norm[0] * 0.00025f; particles[i].velocity[1] = norm[1] * 0.00025f; particles[i].color[0] = rand_float(); particles[i].color[1] = rand_float(); particles[i].color[2] = rand_float(); particles[i].color[3] = 1.0f; } VkDeviceSize bufferSize = sizeof(Particle) * PARTICLE_COUNT; vks_buffer stagingBuffer = {0}; vks_create_buffer(s.vk, bufferSize, VK_BUFFER_USAGE_TRANSFER_SRC_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT, &stagingBuffer); void* data; vkMapMemory(s.vk.device, stagingBuffer.memory, 0, bufferSize, 0, &data); memcpy(data, particles, (size_t)bufferSize); vkUnmapMemory(s.vk.device, stagingBuffer.memory); for (size_t i = 0; i < MAX_FRAMES_IN_FLIGHT; i++) { vks_create_buffer(s.vk, bufferSize, VK_BUFFER_USAGE_STORAGE_BUFFER_BIT | VK_BUFFER_USAGE_VERTEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, &s.frames[i].shader_storage_buffer); // Copy data from the staging buffer (host) to the shader storage buffer (GPU) vks_copy_buffer(s.vk, stagingBuffer.handle, s.frames[i].shader_storage_buffer.handle, bufferSize); } VkDescriptorSetLayoutBinding layoutBindings[3]; layoutBindings[0].binding = 0; layoutBindings[0].descriptorCount = 1; layoutBindings[0].descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER; layoutBindings[0].pImmutableSamplers = NULL; layoutBindings[0].stageFlags = VK_SHADER_STAGE_COMPUTE_BIT; layoutBindings[1].binding = 1; layoutBindings[1].descriptorCount = 1; layoutBindings[1].descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER; layoutBindings[1].pImmutableSamplers = NULL; layoutBindings[1].stageFlags = VK_SHADER_STAGE_COMPUTE_BIT; layoutBindings[2].binding = 2; layoutBindings[2].descriptorCount = 1; layoutBindings[2].descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER; layoutBindings[2].pImmutableSamplers = NULL; layoutBindings[2].stageFlags = VK_SHADER_STAGE_COMPUTE_BIT; VkDescriptorSetLayoutCreateInfo layoutInfo = {0}; layoutInfo.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO; layoutInfo.bindingCount = 3; layoutInfo.pBindings = layoutBindings; VK_CHECK(vkCreateDescriptorSetLayout(s.vk.device, &layoutInfo, NULL, &s.vk_compute_descriptor_set_layout)); VkComputePipelineCreateInfo pipelineInfo = {0}; pipelineInfo.sType = VK_STRUCTURE_TYPE_COMPUTE_PIPELINE_CREATE_INFO; pipelineInfo.layout = s.vk_compute_pipeline_layout; pipelineInfo.stage = computeShaderStageInfo; VK_CHECK(vkCreateComputePipelines(s.vk.device, VK_NULL_HANDLE, 1, &pipelineInfo, NULL, &s.vk_compute_pipeline)); VkPipelineLayoutCreateInfo pipelineLayoutInfo = {0}; pipelineLayoutInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO; pipelineLayoutInfo.setLayoutCount = 1; pipelineLayoutInfo.pSetLayouts = &s.vk_compute_descriptor_set_layout; VK_CHECK(vkCreatePipelineLayout(s.vk.device, &pipelineLayoutInfo, NULL, &s.vk_compute_pipeline_layout)); if (s.prev_comp_result != comp_result) { shaderc_result_release(comp_result); } vkDestroyShaderModule(s.vk.device, compShaderModule, NULL); } void init_vulkan() { vk_log(VK_WARN, "====================================\n"); vk_log(VK_WARN, " DEBUG ON \n"); vk_log(VK_WARN, "====================================\n"); vks_create_vulkan_context(&s.vk); vulkan_create_descriptor_set_layout(); vulkan_create_graphics_pipeline(s.polygon_mode); //vulkan_create_compute_stuff(); vulkan_create_texture_image(); vulkan_create_texture_sampler(); init_imgui(&s.vk); load_model_obj(); //load_model_gltf(); vulkan_create_vertex_buffer(); vulkan_create_index_buffer(); vulkan_create_uniform_buffers(); vulkan_create_descriptor_pool(); vulkan_create_descriptor_sets(); vulkan_create_command_buffer(); vulkan_create_sync_objects(); } void close_vulkan() { vkDeviceWaitIdle(s.vk.device); // Cleanup for (size_t i = 0; i < MAX_FRAMES_IN_FLIGHT; i++) { vkDestroySemaphore(s.vk.device, s.frames[i].image_available_semaphore, NULL); vkDestroySemaphore(s.vk.device, s.frames[i].render_finished_semaphore, NULL); vkDestroyFence(s.vk.device, s.frames[i].in_flight_fence, NULL); } vkDestroyCommandPool(s.vk.device, s.vk.command_pool, NULL); vks_cleanup_swapchain(s.vk); imgui_destroy(s.vk); vkDestroySampler(s.vk.device, s.vk_texture_sampler, NULL); vkDestroyImageView(s.vk.device, s.texture_image.view, NULL); vmaDestroyImage(s.vk.allocator, s.texture_image.handle, s.texture_image.allocation); for (size_t i = 0; i < MAX_FRAMES_IN_FLIGHT; i++) { vmaDestroyBuffer(s.vk.allocator, s.frames[i].uniform_buffer.handle, s.frames[i].uniform_buffer.allocation); } vkDestroyDescriptorPool(s.vk.device, s.vk_descriptor_pool, NULL); vkDestroyDescriptorSetLayout(s.vk.device, s.vk_descriptor_set_layout, NULL); vmaDestroyBuffer(s.vk.allocator, s.vertex_buffer.handle, s.vertex_buffer.allocation); vmaDestroyBuffer(s.vk.allocator, s.index_buffer.handle, s.index_buffer.allocation); vkDestroyPipeline(s.vk.device, s.graphics_pipeline.handle, NULL); vkDestroyPipelineLayout(s.vk.device, s.graphics_pipeline.layout, NULL); vmaDestroyAllocator(s.vk.allocator); vkDestroyDevice(s.vk.device, NULL); vkDestroySurfaceKHR(s.vk.instance, s.vk.surface, NULL); /* if (enable_validation_layers) { */ /* DestroyDebugUtilsMessengerEXT(s.vk.instance, s.vk_debug_messenger, NULL); */ /* } */ vkDestroyInstance(s.vk.instance, NULL); if (s.prev_vert_result) { shaderc_result_release(s.prev_vert_result); } if (s.prev_frag_result) { shaderc_result_release(s.prev_frag_result); } free(s.vertices); free(s.indices); } float current_time() { static struct timespec startTime; static int isStartTimeInitialized = 0; if (!isStartTimeInitialized) { clock_gettime(CLOCK_MONOTONIC, &startTime); isStartTimeInitialized = 1; } struct timespec currentTime; clock_gettime(CLOCK_MONOTONIC, ¤tTime); return (currentTime.tv_sec - startTime.tv_sec) + (currentTime.tv_nsec - startTime.tv_nsec) / 1e9f; } void updateUniformBuffer(uint32_t currentImage, float dt) { UniformBufferObject ubo = {0}; ubo.time = current_time(); ubo.dt = dt; ubo.resolution[0] = s.vk.swapchain.extent.width; ubo.resolution[1] = s.vk.swapchain.extent.height; //glm_mat4_identity(ubo.model); glm_mat4_dup(s.ubo.model, ubo.model); if (s.rotate) glm_rotate(ubo.model, glm_rad(30 * dt * glm_rad(90.0f)), GLM_ZUP); glm_mat4_dup(ubo.model, s.ubo.model); /* vec3 eye = GLM_VEC3_ONE_INIT; */ /* vec3 center = GLM_VEC3_ZERO_INIT; */ // vk_log(VK_INFO, "{%.2f, %.2f, %.2f}\n", s.camera.front[0], s.camera.front[1], s.camera.front[2]); /* glm_vec3_add(s.camera.pos, s.camera.front, center); */ glm_lookat(s.camera.pos, s.camera.front, s.camera.up, ubo.view); /* glm_lookat(eye, center, GLM_ZUP, ubo.view); */ float aspect = s.vk.swapchain.extent.width / (float)s.vk.swapchain.extent.height; glm_perspective(glm_rad(45.0f + s.zoom ), aspect, 0.1f, 100.0f, ubo.proj); // Inverting the Y axis for Vulkan ubo.proj[1][1] *= -1; memcpy(s.frames[currentImage].uniform_buffer_mapped, &ubo, sizeof(ubo)); } float prev_time = 0; void draw_frame() { float time = current_time(); float dt = time - prev_time; vkWaitForFences(s.vk.device, 1, &s.frames[currentFrame].in_flight_fence, VK_TRUE, UINT64_MAX); uint32_t imageIndex; VkResult result = vkAcquireNextImageKHR(s.vk.device, s.vk.swapchain.handle, UINT64_MAX, s.frames[currentFrame].image_available_semaphore, VK_NULL_HANDLE, &imageIndex); if (result == VK_ERROR_OUT_OF_DATE_KHR) { vks_recreate_swapchain(&s.vk); return; } else if (result != VK_SUCCESS && result != VK_SUBOPTIMAL_KHR) { vk_log(VK_ERROR, "failed to acquire swap chain image!\n"); } updateUniformBuffer(currentFrame, dt); vkResetFences(s.vk.device, 1, &s.frames[currentFrame].in_flight_fence); // both could work //vkResetCommandPool(s.vk.device, s.vk_command_pool, VK_COMMAND_POOL_RESET_RELEASE_RESOURCES_BIT); vkResetCommandBuffer(s.frames[currentFrame].vk_command_buffer, 0); recordCommandBuffer(s.frames[currentFrame].vk_command_buffer, imageIndex); VkPipelineStageFlags waitStages[] = {VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT}; VkSubmitInfo submitInfo = {0}; submitInfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO; submitInfo.waitSemaphoreCount = 1; submitInfo.pWaitSemaphores = &s.frames[currentFrame].image_available_semaphore; submitInfo.pWaitDstStageMask = waitStages; submitInfo.commandBufferCount = 1; submitInfo.pCommandBuffers = &s.frames[currentFrame].vk_command_buffer; submitInfo.signalSemaphoreCount = 1; submitInfo.pSignalSemaphores = &s.frames[currentFrame].render_finished_semaphore; VK_CHECK(vkQueueSubmit(s.vk.graphics_and_compute_queue, 1, &submitInfo, s.frames[currentFrame].in_flight_fence)); VkSwapchainKHR swapChains[] = {s.vk.swapchain.handle}; VkPresentInfoKHR presentInfo = {0}; presentInfo.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR; presentInfo.waitSemaphoreCount = 1; presentInfo.pWaitSemaphores = &s.frames[currentFrame].render_finished_semaphore; presentInfo.swapchainCount = 1; presentInfo.pSwapchains = swapChains; presentInfo.pImageIndices = &imageIndex; presentInfo.pResults = NULL; result = vkQueuePresentKHR(s.vk.present_queue, &presentInfo); if (result == VK_ERROR_OUT_OF_DATE_KHR || result == VK_SUBOPTIMAL_KHR || s.sdl_window_resized) { s.sdl_window_resized = 0; vks_recreate_swapchain(&s.vk); } else if (result != VK_SUCCESS) { vk_log(VK_ERROR, "failed to present swap chain image!\n"); } currentFrame = (currentFrame + 1) % MAX_FRAMES_IN_FLIGHT; prev_time = time; } int main(int argc, char* argv[]) { (void) argc; (void)argv; init_state(&s); if (!init()) { vk_log(VK_INFO, "Failed to initialize!\n"); abort(); } init_vulkan(); bool quit = false; // At the end, don't forget to: update_camera(0, 0); // Game loop while (!quit) { handle_input(&quit); imgui_new_frame(s.vk); draw_frame(); //SDL_Delay(16); } close_vulkan(); closeSDL(); return 0; }