687 lines
21 KiB
C++
687 lines
21 KiB
C++
/*
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* Vulkan Example - Multi threaded command buffer generation and rendering
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*
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* Copyright (C) 2016 by Sascha Willems - www.saschawillems.de
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*
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* This code is licensed under the MIT license (MIT) (http://opensource.org/licenses/MIT)
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include <vector>
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#include <thread>
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#define GLM_FORCE_RADIANS
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#define GLM_FORCE_DEPTH_ZERO_TO_ONE
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#include <glm/glm.hpp>
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#include <glm/gtc/matrix_transform.hpp>
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#include <vulkan/vulkan.h>
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#include "vulkanexamplebase.h"
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#define VERTEX_BUFFER_BIND_ID 0
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#define ENABLE_VALIDATION false
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// Vertex layout used in this example
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// Vertex layout for this example
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std::vector<vkMeshLoader::VertexLayout> vertexLayout =
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{
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vkMeshLoader::VERTEX_LAYOUT_POSITION,
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vkMeshLoader::VERTEX_LAYOUT_NORMAL,
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vkMeshLoader::VERTEX_LAYOUT_COLOR,
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};
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class VulkanExample : public VulkanExampleBase
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{
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public:
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struct {
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VkPipelineVertexInputStateCreateInfo inputState;
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std::vector<VkVertexInputBindingDescription> bindingDescriptions;
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std::vector<VkVertexInputAttributeDescription> attributeDescriptions;
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} vertices;
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struct {
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vkMeshLoader::MeshBuffer ufo;
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} meshes;
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struct UBO {
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glm::mat4 projection;
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glm::mat4 view;
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glm::mat4 model;
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glm::vec4 lightPos = glm::vec4(0.0f, 0.0f, 0.0f, 1.0f);
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};
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struct {
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VkPipeline phong;
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} pipelines;
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VkPipelineLayout pipelineLayout;
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VkDescriptorSet descriptorSet;
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VkDescriptorSetLayout descriptorSetLayout;
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// Multi threaded stuff
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// Max. number of concurrent threads
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uint32_t numThreads;
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// Use push constants to update shader
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// parameters on a per-thread base
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struct ThreadPushConstantBlock {
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glm::mat4 model;
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glm::vec3 color;
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};
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struct MeshData {
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glm::vec3 pos;
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glm::vec3 rotation;
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float deltaT;
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vkMeshLoader::MeshBuffer *meshBuffer;
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};
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struct RenderThread {
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uint32_t index;
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std::thread thread;
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ThreadPushConstantBlock pushConstantBlock;
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MeshData meshData;
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// Vulkan objects
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VkCommandPool cmdPool;
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std::vector<VkCommandBuffer> cmdBuffers;
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VkViewport viewport;
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VkRect2D scissor;
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VkDevice device;
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std::vector<VkCommandBufferInheritanceInfo> inheritanceInfo;
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// todo : maybe move to mesh data if using different meshes per thread
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VkPipeline pipeline;
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VkPipelineLayout pipelineLayout;
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VkDescriptorSet descriptorSet;
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UBO ubo;
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vkTools::UniformData uniformData;
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};
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std::vector<RenderThread> renderThreads;
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VulkanExample() : VulkanExampleBase(ENABLE_VALIDATION)
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{
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width = 1280;
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height = 720;
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zoom = -20.0f;
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zoomSpeed = 2.5f;
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rotationSpeed = 0.5f;
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rotation = { 0.0f, 0.0f, 0.0f };
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title = "Vulkan Example - Multi threaded rendering";
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// Get number of max. concurrrent threads
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// todo : May not work on all compilers (e.g. old GCC versions?)
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numThreads = std::thread::hardware_concurrency();
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assert(numThreads > 0);
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// todo : test, remove
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std::cout << "numThreads = " << numThreads << std::endl;
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srand(time(NULL));
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numThreads *= 4; // todo : test
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}
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~VulkanExample()
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{
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// Clean up used Vulkan resources
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// Note : Inherited destructor cleans up resources stored in base class
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vkDestroyPipeline(device, pipelines.phong, nullptr);
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vkDestroyPipelineLayout(device, pipelineLayout, nullptr);
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vkDestroyDescriptorSetLayout(device, descriptorSetLayout, nullptr);
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vkMeshLoader::freeMeshBufferResources(device, &meshes.ufo);
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for (auto& thread : renderThreads)
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{
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vkFreeCommandBuffers(device, thread.cmdPool, thread.cmdBuffers.size(), thread.cmdBuffers.data());
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vkDestroyCommandPool(device, thread.cmdPool, nullptr);
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vkTools::destroyUniformData(device, &thread.uniformData);
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}
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}
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// Update thread's uniform buffer
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static void threadUpdate(RenderThread *thread)
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{
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// Update
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thread->meshData.rotation.y += 0.15f;
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if (thread->meshData.rotation.y > 360.0f)
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thread->meshData.rotation.y -= 360.0f;
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thread->meshData.deltaT += 0.0005f;
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if (thread->meshData.deltaT > 1.0f)
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thread->meshData.deltaT -= 1.0f;
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thread->meshData.pos.y = sin(glm::radians(thread->meshData.deltaT * 360.0f)) * 1.5f;
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thread->ubo.model = glm::translate(glm::mat4(), thread->meshData.pos);
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thread->ubo.model = glm::rotate(thread->ubo.model, -sinf(glm::radians(thread->meshData.deltaT * 360.0f)) * 0.25f, glm::vec3(1.0f, 0.0f, 0.0f));
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thread->ubo.model = glm::rotate(thread->ubo.model, glm::radians(thread->meshData.rotation.y), glm::vec3(0.0f, 1.0f, 0.0f));
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thread->ubo.model = glm::rotate(thread->ubo.model, glm::radians(thread->meshData.deltaT * 360.0f), glm::vec3(0.0f, 1.0f, 0.0f));
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uint8_t *pData;
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VkResult err = vkMapMemory(thread->device, thread->uniformData.memory, 0, sizeof(UBO), 0, (void **)&pData);
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assert(!err);
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memcpy(pData, &thread->ubo, sizeof(UBO));
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vkUnmapMemory(thread->device, thread->uniformData.memory);
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}
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// Update command buffer
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static void threadSetup(RenderThread *thread)
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{
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// Push constant block
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// Color
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// todo : randomize
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thread->pushConstantBlock.color = glm::vec3(1.0f, 1.0f, 1.0f);
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// Model matrix
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glm::mat4 modelMat = glm::translate(glm::mat4(), thread->meshData.pos);
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modelMat = glm::rotate(modelMat, -sinf(glm::radians(thread->meshData.deltaT * 360.0f)) * 0.25f, glm::vec3(1.0f, 0.0f, 0.0f));
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modelMat = glm::rotate(modelMat, glm::radians(thread->meshData.rotation.y), glm::vec3(0.0f, 1.0f, 0.0f));
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modelMat = glm::rotate(modelMat, glm::radians(thread->meshData.deltaT * 360.0f), glm::vec3(0.0f, 1.0f, 0.0f));
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thread->pushConstantBlock.model = modelMat;
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// Fill command buffers
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for (uint32_t i = 0; i < thread->cmdBuffers.size(); ++i)
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{
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VkCommandBufferBeginInfo beginInfo = vkTools::initializers::commandBufferBeginInfo();
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beginInfo.flags = VK_COMMAND_BUFFER_USAGE_RENDER_PASS_CONTINUE_BIT;
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beginInfo.pInheritanceInfo = &thread->inheritanceInfo[i];
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vkBeginCommandBuffer(thread->cmdBuffers[i], &beginInfo);
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vkCmdSetViewport(thread->cmdBuffers[i], 0, 1, &thread->viewport);
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vkCmdSetScissor(thread->cmdBuffers[i], 0, 1, &thread->scissor);
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// Update shader push constant block
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// Contains model view matrix
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vkCmdPushConstants(
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thread->cmdBuffers[i],
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thread->pipelineLayout,
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VK_SHADER_STAGE_VERTEX_BIT,
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0,
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sizeof(ThreadPushConstantBlock),
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&thread->pushConstantBlock);
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vkCmdBindPipeline(thread->cmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, thread->pipeline);
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vkCmdBindDescriptorSets(thread->cmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, thread->pipelineLayout, 0, 1, &thread->descriptorSet, 0, NULL);
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// Render mesh
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VkDeviceSize offsets[1] = { 0 };
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vkCmdBindVertexBuffers(thread->cmdBuffers[i], VERTEX_BUFFER_BIND_ID, 1, &thread->meshData.meshBuffer->vertices.buf, offsets);
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vkCmdBindIndexBuffer(thread->cmdBuffers[i], thread->meshData.meshBuffer->indices.buf, 0, VK_INDEX_TYPE_UINT32);
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vkCmdDrawIndexed(thread->cmdBuffers[i], thread->meshData.meshBuffer->indexCount, 1, 0, 0, 0);
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vkEndCommandBuffer(thread->cmdBuffers[i]);
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}
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}
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// Create all threads and initialize shader push constants
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void prepareMultiThreadedRenderer()
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{
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VkResult err;
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renderThreads.resize(numThreads);
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uint32_t index = 0;
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for (auto& thread : renderThreads)
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{
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thread.index = index;
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// Create command pool
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VkCommandPoolCreateInfo cmdPoolInfo = vkTools::initializers::commandPoolCreateInfo();
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cmdPoolInfo.queueFamilyIndex = swapChain.queueNodeIndex;
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cmdPoolInfo.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT;
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err = vkCreateCommandPool(device, &cmdPoolInfo, nullptr, &thread.cmdPool);
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assert(!err);
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// Create command buffers
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// Use secondary level command buffers
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thread.cmdBuffers.resize(swapChain.imageCount);
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VkCommandBufferAllocateInfo cmdBufAllocateInfo =
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vkTools::initializers::commandBufferAllocateInfo(
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thread.cmdPool,
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VK_COMMAND_BUFFER_LEVEL_SECONDARY,
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(uint32_t)thread.cmdBuffers.size());
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err = vkAllocateCommandBuffers(device, &cmdBufAllocateInfo, thread.cmdBuffers.data());
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assert(!err);
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// Vulkan objects
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thread.device = device;
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// todo...
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thread.viewport = vkTools::initializers::viewport((float)width, (float)height, 0.0f, 1.0f);
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thread.viewport.width = (float)width / (float)numThreads;
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thread.viewport.height = (float)height;
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thread.viewport.x = thread.viewport.width * thread.index;
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thread.scissor = vkTools::initializers::rect2D(width, height, 0, 0);
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thread.pipeline = pipelines.phong;
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thread.pipelineLayout = pipelineLayout;
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// Inheritance info for secondary command buffers
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for (uint32_t i = 0; i < thread.cmdBuffers.size(); ++i)
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{
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VkCommandBufferInheritanceInfo inheritanceInfo = vkTools::initializers::commandBufferInheritanceInfo();
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inheritanceInfo.renderPass = renderPass;
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inheritanceInfo.framebuffer = frameBuffers[i];
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thread.inheritanceInfo.push_back(inheritanceInfo);
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}
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// Separate vertex shader uniform buffer block for each thread
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createBuffer(
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VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT,
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sizeof(UBO),
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&thread.ubo,
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&thread.uniformData.buffer,
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&thread.uniformData.memory,
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&thread.uniformData.descriptor);
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// Descriptor set
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VkDescriptorSetAllocateInfo allocInfo =
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vkTools::initializers::descriptorSetAllocateInfo(
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descriptorPool,
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&descriptorSetLayout,
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1);
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VkResult vkRes = vkAllocateDescriptorSets(device, &allocInfo, &thread.descriptorSet);
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assert(!vkRes);
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std::vector<VkWriteDescriptorSet> writeDescriptorSets =
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{
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// Binding 0 : Vertex shader uniform buffer
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vkTools::initializers::writeDescriptorSet(
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thread.descriptorSet,
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VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
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0,
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&thread.uniformData.descriptor)
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};
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vkUpdateDescriptorSets(device, writeDescriptorSets.size(), writeDescriptorSets.data(), 0, NULL);
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// Initialize mesh data
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thread.meshData.pos = glm::vec3(0.0f, 0.0f, 0.0f);
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// thread.meshData.pos = glm::vec3((float)index * 4.0f - (float)(numThreads - 1) * 2.0f, 0.0f, 0.0f);
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thread.meshData.rotation = glm::vec3(0.0f, (float)(rand() % 360), 0.0f);
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thread.meshData.deltaT = (float)(rand() % 255) / 255.0f;
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// todo : different models (and multiple meshes) per thread
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thread.meshData.meshBuffer = &meshes.ufo;
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// Create thread
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thread.thread = std::thread(VulkanExample::threadSetup, &thread);
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index++;
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}
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for (auto& thread : renderThreads)
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{
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thread.thread.join();
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}
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}
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void buildCommandBuffers()
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{
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VkCommandBufferBeginInfo cmdBufInfo = vkTools::initializers::commandBufferBeginInfo();
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VkClearValue clearValues[2];
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clearValues[0].color = defaultClearColor;
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clearValues[0].color = { {0.0f, 0.0f, 0.2f, 0.0f} };
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clearValues[1].depthStencil = { 1.0f, 0 };
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VkRenderPassBeginInfo renderPassBeginInfo = vkTools::initializers::renderPassBeginInfo();
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renderPassBeginInfo.renderPass = renderPass;
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renderPassBeginInfo.renderArea.offset.x = 0;
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renderPassBeginInfo.renderArea.offset.y = 0;
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renderPassBeginInfo.renderArea.extent.width = width;
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renderPassBeginInfo.renderArea.extent.height = height;
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renderPassBeginInfo.clearValueCount = 2;
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renderPassBeginInfo.pClearValues = clearValues;
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VkResult err;
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for (int32_t i = 0; i < drawCmdBuffers.size(); ++i)
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{
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// Set target frame buffer
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renderPassBeginInfo.framebuffer = frameBuffers[i];
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err = vkBeginCommandBuffer(drawCmdBuffers[i], &cmdBufInfo);
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assert(!err);
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// The primary command buffer does not contain any rendering commands
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// These are stored (and retrieved) from the secondary command buffers
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vkCmdBeginRenderPass(drawCmdBuffers[i], &renderPassBeginInfo, VK_SUBPASS_CONTENTS_SECONDARY_COMMAND_BUFFERS);
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// Execute secondary command buffers
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for (auto& renderThread : renderThreads)
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{
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// todo : Make sure threads are finished before accessing their command buffers
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vkCmdExecuteCommands(drawCmdBuffers[i], 1, &renderThread.cmdBuffers[i]);
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}
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vkCmdEndRenderPass(drawCmdBuffers[i]);
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err = vkEndCommandBuffer(drawCmdBuffers[i]);
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assert(!err);
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}
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}
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void draw()
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{
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if (!paused)
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{
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updateUniformBuffers();
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}
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VkResult err;
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// Get next image in the swap chain (back/front buffer)
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err = swapChain.acquireNextImage(semaphores.presentComplete, ¤tBuffer);
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assert(!err);
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submitPostPresentBarrier(swapChain.buffers[currentBuffer].image);
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submitInfo.commandBufferCount = 1;
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submitInfo.pCommandBuffers = &drawCmdBuffers[currentBuffer];
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// Put a fence in here
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// todo : reuse
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VkFence renderFence = {};
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VkFenceCreateInfo fenceCreateInfo = vkTools::initializers::fenceCreateInfo(VK_FLAGS_NONE);
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vkCreateFence(device, &fenceCreateInfo, NULL, &renderFence);
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// Submit draw command buffer
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err = vkQueueSubmit(queue, 1, &submitInfo, renderFence);
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assert(!err);
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// Wait for fence to signal that all command buffers are ready
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do
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{
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err = vkWaitForFences(device, 1, &renderFence, VK_TRUE, 100000000);
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} while (err == VK_TIMEOUT);
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assert(!err);
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submitPrePresentBarrier(swapChain.buffers[currentBuffer].image);
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err = swapChain.queuePresent(queue, currentBuffer, semaphores.renderComplete);
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assert(!err);
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vkDestroyFence(device, renderFence, nullptr);
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err = vkQueueWaitIdle(queue);
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assert(!err);
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}
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void loadMeshes()
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{
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loadMesh("./../data/models/retroufo_red.X", &meshes.ufo, vertexLayout, 0.25f);
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}
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void setupVertexDescriptions()
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{
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// Binding description
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vertices.bindingDescriptions.resize(1);
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vertices.bindingDescriptions[0] =
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vkTools::initializers::vertexInputBindingDescription(
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VERTEX_BUFFER_BIND_ID,
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vkMeshLoader::vertexSize(vertexLayout),
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VK_VERTEX_INPUT_RATE_VERTEX);
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// Attribute descriptions
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// Describes memory layout and shader positions
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vertices.attributeDescriptions.resize(3);
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// Location 0 : Position
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vertices.attributeDescriptions[0] =
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vkTools::initializers::vertexInputAttributeDescription(
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VERTEX_BUFFER_BIND_ID,
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0,
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VK_FORMAT_R32G32B32_SFLOAT,
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0);
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// Location 1 : Normal
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vertices.attributeDescriptions[1] =
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vkTools::initializers::vertexInputAttributeDescription(
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VERTEX_BUFFER_BIND_ID,
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1,
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VK_FORMAT_R32G32B32_SFLOAT,
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sizeof(float) * 3);
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// Location 3 : Color
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vertices.attributeDescriptions[2] =
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vkTools::initializers::vertexInputAttributeDescription(
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VERTEX_BUFFER_BIND_ID,
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2,
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VK_FORMAT_R32G32B32_SFLOAT,
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sizeof(float) * 6);
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vertices.inputState = vkTools::initializers::pipelineVertexInputStateCreateInfo();
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vertices.inputState.vertexBindingDescriptionCount = vertices.bindingDescriptions.size();
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vertices.inputState.pVertexBindingDescriptions = vertices.bindingDescriptions.data();
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vertices.inputState.vertexAttributeDescriptionCount = vertices.attributeDescriptions.size();
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vertices.inputState.pVertexAttributeDescriptions = vertices.attributeDescriptions.data();
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}
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void setupDescriptorPool()
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{
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std::vector<VkDescriptorPoolSize> poolSizes =
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{
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vkTools::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 3 + numThreads)
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};
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VkDescriptorPoolCreateInfo descriptorPoolInfo =
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vkTools::initializers::descriptorPoolCreateInfo(
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poolSizes.size(),
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poolSizes.data(),
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3 + numThreads);
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VkResult vkRes = vkCreateDescriptorPool(device, &descriptorPoolInfo, nullptr, &descriptorPool);
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assert(!vkRes);
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}
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void setupDescriptorSetLayout()
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{
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std::vector<VkDescriptorSetLayoutBinding> setLayoutBindings =
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{
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// Binding 0 : Vertex shader uniform buffer
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vkTools::initializers::descriptorSetLayoutBinding(
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VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
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VK_SHADER_STAGE_VERTEX_BIT,
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0)
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};
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|
VkDescriptorSetLayoutCreateInfo descriptorLayout =
|
|
vkTools::initializers::descriptorSetLayoutCreateInfo(
|
|
setLayoutBindings.data(),
|
|
setLayoutBindings.size());
|
|
|
|
VkResult err = vkCreateDescriptorSetLayout(device, &descriptorLayout, nullptr, &descriptorSetLayout);
|
|
assert(!err);
|
|
|
|
VkPipelineLayoutCreateInfo pPipelineLayoutCreateInfo =
|
|
vkTools::initializers::pipelineLayoutCreateInfo(
|
|
&descriptorSetLayout,
|
|
1);
|
|
|
|
// Push constants for model matrices
|
|
VkPushConstantRange pushConstantRange =
|
|
vkTools::initializers::pushConstantRange(
|
|
VK_PIPELINE_STAGE_VERTEX_SHADER_BIT,
|
|
sizeof(glm::mat4),
|
|
0);
|
|
|
|
// Push constant ranges are part of the pipeline layout
|
|
pPipelineLayoutCreateInfo.pushConstantRangeCount = 1;
|
|
pPipelineLayoutCreateInfo.pPushConstantRanges = &pushConstantRange;
|
|
|
|
err = vkCreatePipelineLayout(device, &pPipelineLayoutCreateInfo, nullptr, &pipelineLayout);
|
|
assert(!err);
|
|
}
|
|
|
|
void preparePipelines()
|
|
{
|
|
VkPipelineInputAssemblyStateCreateInfo inputAssemblyState =
|
|
vkTools::initializers::pipelineInputAssemblyStateCreateInfo(
|
|
VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST,
|
|
0,
|
|
VK_FALSE);
|
|
|
|
VkPipelineRasterizationStateCreateInfo rasterizationState =
|
|
vkTools::initializers::pipelineRasterizationStateCreateInfo(
|
|
VK_POLYGON_MODE_FILL,
|
|
VK_CULL_MODE_BACK_BIT,
|
|
VK_FRONT_FACE_CLOCKWISE,
|
|
0);
|
|
|
|
VkPipelineColorBlendAttachmentState blendAttachmentState =
|
|
vkTools::initializers::pipelineColorBlendAttachmentState(
|
|
0xf,
|
|
VK_FALSE);
|
|
|
|
VkPipelineColorBlendStateCreateInfo colorBlendState =
|
|
vkTools::initializers::pipelineColorBlendStateCreateInfo(
|
|
1,
|
|
&blendAttachmentState);
|
|
|
|
VkPipelineDepthStencilStateCreateInfo depthStencilState =
|
|
vkTools::initializers::pipelineDepthStencilStateCreateInfo(
|
|
VK_TRUE,
|
|
VK_TRUE,
|
|
VK_COMPARE_OP_LESS_OR_EQUAL);
|
|
|
|
VkPipelineViewportStateCreateInfo viewportState =
|
|
vkTools::initializers::pipelineViewportStateCreateInfo(1, 1, 0);
|
|
|
|
VkPipelineMultisampleStateCreateInfo multisampleState =
|
|
vkTools::initializers::pipelineMultisampleStateCreateInfo(
|
|
VK_SAMPLE_COUNT_1_BIT,
|
|
0);
|
|
|
|
std::vector<VkDynamicState> dynamicStateEnables = {
|
|
VK_DYNAMIC_STATE_VIEWPORT,
|
|
VK_DYNAMIC_STATE_SCISSOR
|
|
};
|
|
VkPipelineDynamicStateCreateInfo dynamicState =
|
|
vkTools::initializers::pipelineDynamicStateCreateInfo(
|
|
dynamicStateEnables.data(),
|
|
dynamicStateEnables.size(),
|
|
0);
|
|
|
|
// Solid rendering pipeline
|
|
// Load shaders
|
|
std::array<VkPipelineShaderStageCreateInfo, 2> shaderStages;
|
|
|
|
shaderStages[0] = loadShader("./../data/shaders/multithreading/phong.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
|
|
shaderStages[1] = loadShader("./../data/shaders/multithreading/phong.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
|
|
|
|
VkGraphicsPipelineCreateInfo pipelineCreateInfo =
|
|
vkTools::initializers::pipelineCreateInfo(
|
|
pipelineLayout,
|
|
renderPass,
|
|
0);
|
|
|
|
pipelineCreateInfo.pVertexInputState = &vertices.inputState;
|
|
pipelineCreateInfo.pInputAssemblyState = &inputAssemblyState;
|
|
pipelineCreateInfo.pRasterizationState = &rasterizationState;
|
|
pipelineCreateInfo.pColorBlendState = &colorBlendState;
|
|
pipelineCreateInfo.pMultisampleState = &multisampleState;
|
|
pipelineCreateInfo.pViewportState = &viewportState;
|
|
pipelineCreateInfo.pDepthStencilState = &depthStencilState;
|
|
pipelineCreateInfo.pDynamicState = &dynamicState;
|
|
pipelineCreateInfo.stageCount = shaderStages.size();
|
|
pipelineCreateInfo.pStages = shaderStages.data();
|
|
|
|
VkResult err = vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.phong);
|
|
assert(!err);
|
|
}
|
|
|
|
void updateUniformBuffers()
|
|
{
|
|
glm::mat4 projection = glm::perspective(glm::radians(60.0f), (float)width / (float)height, 0.1f, 256.0f);
|
|
|
|
glm::mat4 view = glm::translate(glm::mat4(), glm::vec3(0.0f, 0.0f, zoom));
|
|
view = glm::rotate(view, glm::radians(rotation.x), glm::vec3(1.0f, 0.0f, 0.0f));
|
|
view = glm::rotate(view, glm::radians(rotation.y), glm::vec3(0.0f, 1.0f, 0.0f));
|
|
view = glm::rotate(view, glm::radians(rotation.z), glm::vec3(0.0f, 0.0f, 1.0f));
|
|
|
|
for (auto& thread : renderThreads)
|
|
{
|
|
//thread.ubo.projection = projection;
|
|
thread.ubo.projection = glm::perspective(glm::radians(60.0f), (float)thread.viewport.width / (float)thread.viewport.height, 0.1f, 256.0f);
|
|
thread.ubo.view = view;
|
|
thread.thread = std::thread(VulkanExample::threadUpdate, &thread);
|
|
}
|
|
|
|
for (auto& thread : renderThreads)
|
|
{
|
|
thread.thread.join();
|
|
}
|
|
}
|
|
|
|
void prepare()
|
|
{
|
|
VulkanExampleBase::prepare();
|
|
loadMeshes();
|
|
setupVertexDescriptions();
|
|
setupDescriptorSetLayout();
|
|
preparePipelines();
|
|
setupDescriptorPool();
|
|
prepareMultiThreadedRenderer();
|
|
updateUniformBuffers();
|
|
buildCommandBuffers();
|
|
prepared = true;
|
|
}
|
|
|
|
virtual void render()
|
|
{
|
|
if (!prepared)
|
|
return;
|
|
vkDeviceWaitIdle(device);
|
|
draw();
|
|
vkDeviceWaitIdle(device);
|
|
}
|
|
|
|
virtual void viewChanged()
|
|
{
|
|
if (paused)
|
|
{
|
|
|
|
updateUniformBuffers();
|
|
}
|
|
}
|
|
};
|
|
|
|
VulkanExample *vulkanExample;
|
|
|
|
#ifdef _WIN32
|
|
|
|
LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
|
|
{
|
|
if (vulkanExample != NULL)
|
|
{
|
|
vulkanExample->handleMessages(hWnd, uMsg, wParam, lParam);
|
|
}
|
|
return (DefWindowProc(hWnd, uMsg, wParam, lParam));
|
|
}
|
|
|
|
#else
|
|
|
|
static void handleEvent(const xcb_generic_event_t *event)
|
|
{
|
|
if (vulkanExample != NULL)
|
|
{
|
|
vulkanExample->handleEvent(event);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifdef _WIN32
|
|
int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR pCmdLine, int nCmdShow)
|
|
#else
|
|
int main(const int argc, const char *argv[])
|
|
#endif
|
|
{
|
|
vulkanExample = new VulkanExample();
|
|
#ifdef _WIN32
|
|
vulkanExample->setupWindow(hInstance, WndProc);
|
|
#else
|
|
vulkanExample->setupWindow();
|
|
#endif
|
|
vulkanExample->initSwapchain();
|
|
vulkanExample->prepare();
|
|
vulkanExample->renderLoop();
|
|
delete(vulkanExample);
|
|
return 0;
|
|
}
|