789 lines
24 KiB
C++
789 lines
24 KiB
C++
/*
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* Vulkan Example - Texture arrays and instanced 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 <time.h>
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#include <vector>
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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 for this example
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struct Vertex {
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float pos[3];
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float uv[2];
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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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// Number of array layers in texture array
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// Also used as instance count
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uint32_t layerCount;
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vkTools::VulkanTexture textureArray;
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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 quad;
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} meshes;
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struct {
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vkTools::UniformData vertexShader;
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} uniformData;
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struct UboInstanceData {
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// Model matrix
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glm::mat4 model;
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// Texture array index
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// Vec4 due to padding
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glm::vec4 arrayIndex;
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};
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struct {
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// Global matrices
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struct {
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glm::mat4 projection;
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glm::mat4 view;
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} matrices;
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// Seperate data for each instance
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UboInstanceData *instance;
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} uboVS;
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struct {
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VkPipeline solid;
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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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VulkanExample() : VulkanExampleBase(ENABLE_VALIDATION)
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{
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zoom = -15.0f;
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rotationSpeed = 0.25f;
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rotation = { -15.0f, 35.0f, 0.0f };
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title = "Vulkan Example - Texture arrays";
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srand(time(NULL));
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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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// Clean up texture resources
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vkDestroyImageView(device, textureArray.view, nullptr);
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vkDestroyImage(device, textureArray.image, nullptr);
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vkDestroySampler(device, textureArray.sampler, nullptr);
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vkFreeMemory(device, textureArray.deviceMemory, nullptr);
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vkDestroyPipeline(device, pipelines.solid, 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.quad);
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vkTools::destroyUniformData(device, &uniformData.vertexShader);
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delete[] uboVS.instance;
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}
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void loadTextureArray(const char* filename, VkFormat format)
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{
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VkFormatProperties formatProperties;
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VkResult err;
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gli::texture2DArray tex2DArray(gli::load(filename));
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assert(!tex2DArray.empty());
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textureArray.width = tex2DArray.dimensions().x;
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textureArray.height = tex2DArray.dimensions().y;
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layerCount = tex2DArray.layers();
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// Get device properites for the requested texture format
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vkGetPhysicalDeviceFormatProperties(physicalDevice, format, &formatProperties);
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VkImageCreateInfo imageCreateInfo = vkTools::initializers::imageCreateInfo();
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imageCreateInfo.imageType = VK_IMAGE_TYPE_2D;
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imageCreateInfo.format = format;
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imageCreateInfo.extent = { textureArray.width, textureArray.height, 1 };
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imageCreateInfo.mipLevels = 1;
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imageCreateInfo.arrayLayers = 1;
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imageCreateInfo.samples = VK_SAMPLE_COUNT_1_BIT;
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imageCreateInfo.tiling = VK_IMAGE_TILING_LINEAR;
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imageCreateInfo.usage = VK_IMAGE_USAGE_TRANSFER_SRC_BIT;
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imageCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
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imageCreateInfo.initialLayout = VK_IMAGE_LAYOUT_PREINITIALIZED;
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imageCreateInfo.flags = 0;
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VkMemoryAllocateInfo memAllocInfo = vkTools::initializers::memoryAllocateInfo();
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VkMemoryRequirements memReqs;
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struct Layer {
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VkImage image;
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VkDeviceMemory memory;
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};
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std::vector<Layer> arrayLayer;
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arrayLayer.resize(layerCount);
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// Allocate command buffer for image copies and layouts
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VkCommandBuffer cmdBuffer;
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VkCommandBufferAllocateInfo cmdBufAlllocatInfo =
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vkTools::initializers::commandBufferAllocateInfo(
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cmdPool,
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VK_COMMAND_BUFFER_LEVEL_PRIMARY,
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1);
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err = vkAllocateCommandBuffers(device, &cmdBufAlllocatInfo, &cmdBuffer);
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assert(!err);
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VkCommandBufferBeginInfo cmdBufInfo =
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vkTools::initializers::commandBufferBeginInfo();
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err = vkBeginCommandBuffer(cmdBuffer, &cmdBufInfo);
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assert(!err);
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// Load separate cube map faces into linear tiled textures
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for (uint32_t i = 0; i < layerCount; ++i)
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{
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err = vkCreateImage(device, &imageCreateInfo, nullptr, &arrayLayer[i].image);
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assert(!err);
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vkGetImageMemoryRequirements(device, arrayLayer[i].image, &memReqs);
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memAllocInfo.allocationSize = memReqs.size;
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getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT, &memAllocInfo.memoryTypeIndex);
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err = vkAllocateMemory(device, &memAllocInfo, nullptr, &arrayLayer[i].memory);
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assert(!err);
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err = vkBindImageMemory(device, arrayLayer[i].image, arrayLayer[i].memory, 0);
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assert(!err);
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VkImageSubresource subRes = {};
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subRes.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
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VkSubresourceLayout subResLayout;
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void *data;
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vkGetImageSubresourceLayout(device, arrayLayer[i].image, &subRes, &subResLayout);
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assert(!err);
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err = vkMapMemory(device, arrayLayer[i].memory, 0, memReqs.size, 0, &data);
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assert(!err);
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memcpy(data, tex2DArray[i].data(), tex2DArray[i].size());
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vkUnmapMemory(device, arrayLayer[i].memory);
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// Image barrier for linear image (base)
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// Linear image will be used as a source for the copy
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vkTools::setImageLayout(
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cmdBuffer,
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arrayLayer[i].image,
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VK_IMAGE_ASPECT_COLOR_BIT,
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VK_IMAGE_LAYOUT_PREINITIALIZED,
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VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL);
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}
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// Transfer cube map faces to optimal tiling
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// Setup texture as blit target with optimal tiling
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imageCreateInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
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imageCreateInfo.usage = VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT;
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imageCreateInfo.arrayLayers = layerCount;
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err = vkCreateImage(device, &imageCreateInfo, nullptr, &textureArray.image);
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assert(!err);
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vkGetImageMemoryRequirements(device, textureArray.image, &memReqs);
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memAllocInfo.allocationSize = memReqs.size;
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getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, &memAllocInfo.memoryTypeIndex);
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err = vkAllocateMemory(device, &memAllocInfo, nullptr, &textureArray.deviceMemory);
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assert(!err);
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err = vkBindImageMemory(device, textureArray.image, textureArray.deviceMemory, 0);
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assert(!err);
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// Image barrier for optimal image (target)
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// Set initial layout for all array layers of the optimal (target) tiled texture
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VkImageSubresourceRange subresourceRange = {};
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subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
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subresourceRange.baseMipLevel = 0;
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subresourceRange.levelCount = 1;
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subresourceRange.layerCount = layerCount;
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vkTools::setImageLayout(
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cmdBuffer,
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textureArray.image,
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VK_IMAGE_ASPECT_COLOR_BIT,
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VK_IMAGE_LAYOUT_PREINITIALIZED,
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VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
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subresourceRange);
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// Copy cube map faces one by one
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for (uint32_t i = 0; i < layerCount; ++i)
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{
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// Copy region for image blit
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VkImageCopy copyRegion = {};
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copyRegion.srcSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
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copyRegion.srcSubresource.baseArrayLayer = 0;
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copyRegion.srcSubresource.mipLevel = 0;
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copyRegion.srcSubresource.layerCount = 1;
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copyRegion.srcOffset = { 0, 0, 0 };
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copyRegion.dstSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
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copyRegion.dstSubresource.baseArrayLayer = i;
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copyRegion.dstSubresource.mipLevel = 0;
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copyRegion.dstSubresource.layerCount = 1;
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copyRegion.dstOffset = { 0, 0, 0 };
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copyRegion.extent.width = textureArray.width;
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copyRegion.extent.height = textureArray.height;
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copyRegion.extent.depth = 1;
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// Put image copy into command buffer
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vkCmdCopyImage(
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cmdBuffer,
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arrayLayer[i].image, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
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textureArray.image, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
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1, ©Region);
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}
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// Change texture image layout to shader read after all layers have been copied
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textureArray.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
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vkTools::setImageLayout(
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cmdBuffer,
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textureArray.image,
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VK_IMAGE_ASPECT_COLOR_BIT,
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VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
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textureArray.imageLayout,
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subresourceRange);
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err = vkEndCommandBuffer(cmdBuffer);
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assert(!err);
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VkFence nullFence = { VK_NULL_HANDLE };
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// Submit command buffer to graphis queue
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VkSubmitInfo submitInfo = vkTools::initializers::submitInfo();
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submitInfo.commandBufferCount = 1;
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submitInfo.pCommandBuffers = &cmdBuffer;
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err = vkQueueSubmit(queue, 1, &submitInfo, nullFence);
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assert(!err);
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err = vkQueueWaitIdle(queue);
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assert(!err);
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// Create sampler
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VkSamplerCreateInfo sampler = vkTools::initializers::samplerCreateInfo();
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sampler.magFilter = VK_FILTER_LINEAR;
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sampler.minFilter = VK_FILTER_LINEAR;
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sampler.mipmapMode = VK_SAMPLER_MIPMAP_MODE_LINEAR;
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sampler.addressModeU = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE;
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sampler.addressModeV = sampler.addressModeU;
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sampler.addressModeW = sampler.addressModeU;
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sampler.mipLodBias = 0.0f;
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sampler.maxAnisotropy = 8;
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sampler.compareOp = VK_COMPARE_OP_NEVER;
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sampler.minLod = 0.0f;
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sampler.maxLod = 0.0f;
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sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
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err = vkCreateSampler(device, &sampler, nullptr, &textureArray.sampler);
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assert(!err);
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// Create image view
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VkImageViewCreateInfo view = vkTools::initializers::imageViewCreateInfo();
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view.image = VK_NULL_HANDLE;
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view.viewType = VK_IMAGE_VIEW_TYPE_2D_ARRAY;
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view.format = format;
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view.components = { VK_COMPONENT_SWIZZLE_R, VK_COMPONENT_SWIZZLE_G, VK_COMPONENT_SWIZZLE_B, VK_COMPONENT_SWIZZLE_A };
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view.subresourceRange = { VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 };
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view.subresourceRange.layerCount = layerCount;
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view.image = textureArray.image;
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err = vkCreateImageView(device, &view, nullptr, &textureArray.view);
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assert(!err);
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// Cleanup
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for (auto& layer : arrayLayer)
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{
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vkDestroyImage(device, layer.image, nullptr);
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vkFreeMemory(device, layer.memory, nullptr);
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}
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}
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void loadTextures()
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{
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loadTextureArray("./../data/textures/texturearray_bc3.ktx", VK_FORMAT_BC3_UNORM_BLOCK);
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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[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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vkCmdBeginRenderPass(drawCmdBuffers[i], &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
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VkViewport viewport = vkTools::initializers::viewport(
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(float)width,
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(float)height,
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0.0f,
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1.0f);
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vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
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VkRect2D scissor = vkTools::initializers::rect2D(
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width,
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height,
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0,
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0);
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vkCmdSetScissor(drawCmdBuffers[i], 0, 1, &scissor);
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vkCmdBindDescriptorSets(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 0, 1, &descriptorSet, 0, NULL);
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VkDeviceSize offsets[1] = { 0 };
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vkCmdBindVertexBuffers(drawCmdBuffers[i], VERTEX_BUFFER_BIND_ID, 1, &meshes.quad.vertices.buf, offsets);
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vkCmdBindIndexBuffer(drawCmdBuffers[i], meshes.quad.indices.buf, 0, VK_INDEX_TYPE_UINT32);
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vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.solid);
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vkCmdDrawIndexed(drawCmdBuffers[i], meshes.quad.indexCount, layerCount, 0, 0, 0);
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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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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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// Command buffer to be sumitted to the queue
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submitInfo.commandBufferCount = 1;
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submitInfo.pCommandBuffers = &drawCmdBuffers[currentBuffer];
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// Submit to queue
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err = vkQueueSubmit(queue, 1, &submitInfo, VK_NULL_HANDLE);
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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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err = vkQueueWaitIdle(queue);
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assert(!err);
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}
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// Setup vertices for a single uv-mapped quad
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void generateQuad()
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{
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#define dim 2.5f
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std::vector<Vertex> vertexBuffer =
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{
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{ { dim, dim, 0.0f }, { 1.0f, 1.0f } },
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{ { -dim, dim, 0.0f }, { 0.0f, 1.0f } },
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{ { -dim, -dim, 0.0f }, { 0.0f, 0.0f } },
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{ { dim, -dim, 0.0f }, { 1.0f, 0.0f } }
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};
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#undef dim
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createBuffer(
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VK_BUFFER_USAGE_VERTEX_BUFFER_BIT,
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vertexBuffer.size() * sizeof(Vertex),
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vertexBuffer.data(),
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&meshes.quad.vertices.buf,
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&meshes.quad.vertices.mem);
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// Setup indices
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std::vector<uint32_t> indexBuffer = { 0,1,2, 2,3,0 };
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meshes.quad.indexCount = indexBuffer.size();
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createBuffer(
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VK_BUFFER_USAGE_INDEX_BUFFER_BIT,
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indexBuffer.size() * sizeof(uint32_t),
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indexBuffer.data(),
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&meshes.quad.indices.buf,
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&meshes.quad.indices.mem);
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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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sizeof(Vertex),
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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(2);
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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 : Texture coordinates
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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_R32G32_SFLOAT,
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sizeof(float) * 3);
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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();
|
|
}
|
|
|
|
void setupDescriptorPool()
|
|
{
|
|
std::vector<VkDescriptorPoolSize> poolSizes =
|
|
{
|
|
vkTools::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 1),
|
|
vkTools::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1)
|
|
};
|
|
|
|
VkDescriptorPoolCreateInfo descriptorPoolInfo =
|
|
vkTools::initializers::descriptorPoolCreateInfo(
|
|
poolSizes.size(),
|
|
poolSizes.data(),
|
|
2);
|
|
|
|
VkResult vkRes = vkCreateDescriptorPool(device, &descriptorPoolInfo, nullptr, &descriptorPool);
|
|
assert(!vkRes);
|
|
}
|
|
|
|
void setupDescriptorSetLayout()
|
|
{
|
|
std::vector<VkDescriptorSetLayoutBinding> setLayoutBindings =
|
|
{
|
|
// Binding 0 : Vertex shader uniform buffer
|
|
vkTools::initializers::descriptorSetLayoutBinding(
|
|
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
|
|
VK_SHADER_STAGE_VERTEX_BIT,
|
|
0),
|
|
// Binding 1 : Fragment shader image sampler (texture array)
|
|
vkTools::initializers::descriptorSetLayoutBinding(
|
|
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
|
|
VK_SHADER_STAGE_FRAGMENT_BIT,
|
|
1)
|
|
};
|
|
|
|
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);
|
|
|
|
err = vkCreatePipelineLayout(device, &pPipelineLayoutCreateInfo, nullptr, &pipelineLayout);
|
|
assert(!err);
|
|
}
|
|
|
|
void setupDescriptorSet()
|
|
{
|
|
VkDescriptorSetAllocateInfo allocInfo =
|
|
vkTools::initializers::descriptorSetAllocateInfo(
|
|
descriptorPool,
|
|
&descriptorSetLayout,
|
|
1);
|
|
|
|
VkResult vkRes = vkAllocateDescriptorSets(device, &allocInfo, &descriptorSet);
|
|
assert(!vkRes);
|
|
|
|
// Image descriptor for the texture array
|
|
VkDescriptorImageInfo texArrayDescriptor =
|
|
vkTools::initializers::descriptorImageInfo(
|
|
textureArray.sampler,
|
|
textureArray.view,
|
|
VK_IMAGE_LAYOUT_GENERAL);
|
|
|
|
std::vector<VkWriteDescriptorSet> writeDescriptorSets =
|
|
{
|
|
// Binding 0 : Vertex shader uniform buffer
|
|
vkTools::initializers::writeDescriptorSet(
|
|
descriptorSet,
|
|
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
|
|
0,
|
|
&uniformData.vertexShader.descriptor),
|
|
// Binding 1 : Fragment shader cubemap sampler
|
|
vkTools::initializers::writeDescriptorSet(
|
|
descriptorSet,
|
|
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
|
|
1,
|
|
&texArrayDescriptor)
|
|
};
|
|
|
|
vkUpdateDescriptorSets(device, writeDescriptorSets.size(), writeDescriptorSets.data(), 0, NULL);
|
|
}
|
|
|
|
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_NONE,
|
|
VK_FRONT_FACE_COUNTER_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);
|
|
|
|
// Instacing pipeline
|
|
// Load shaders
|
|
std::array<VkPipelineShaderStageCreateInfo, 2> shaderStages;
|
|
|
|
shaderStages[0] = loadShader("./../data/shaders/texturearray/instancing.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
|
|
shaderStages[1] = loadShader("./../data/shaders/texturearray/instancing.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.solid);
|
|
assert(!err);
|
|
}
|
|
|
|
void prepareUniformBuffers()
|
|
{
|
|
uboVS.instance = new UboInstanceData[layerCount];
|
|
|
|
VkResult err;
|
|
uint32_t uboSize = sizeof(uboVS.matrices) + (layerCount * sizeof(UboInstanceData));
|
|
|
|
// Vertex shader uniform buffer block
|
|
createBuffer(
|
|
VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT,
|
|
uboSize,
|
|
&uboVS,
|
|
&uniformData.vertexShader.buffer,
|
|
&uniformData.vertexShader.memory,
|
|
&uniformData.vertexShader.descriptor);
|
|
|
|
// Array indices and model matrices are fixed
|
|
float offset = -1.5f;
|
|
uint32_t index = 0;
|
|
float center = (layerCount*offset) / 2;
|
|
for (int32_t i = 0; i < layerCount; i++)
|
|
{
|
|
// Instance model matrix
|
|
uboVS.instance[i].model = glm::translate(glm::mat4(), glm::vec3(0.0f, i * offset - center, 0.0f));
|
|
uboVS.instance[i].model = glm::rotate(uboVS.instance[i].model, glm::radians(60.0f), glm::vec3(1.0f, 0.0f, 0.0f));
|
|
// Instance texture array index
|
|
uboVS.instance[i].arrayIndex.x = i;
|
|
}
|
|
|
|
// Update instanced part of the uniform buffer
|
|
uint8_t *pData;
|
|
uint32_t dataOffset = sizeof(uboVS.matrices);
|
|
uint32_t dataSize = layerCount * sizeof(UboInstanceData);
|
|
err = vkMapMemory(device, uniformData.vertexShader.memory, dataOffset, dataSize, 0, (void **)&pData);
|
|
assert(!err);
|
|
memcpy(pData, uboVS.instance, dataSize);
|
|
vkUnmapMemory(device, uniformData.vertexShader.memory);
|
|
|
|
updateUniformBufferMatrices();
|
|
}
|
|
|
|
void updateUniformBufferMatrices()
|
|
{
|
|
// Only updates the uniform buffer block part containing the global matrices
|
|
|
|
// Projection
|
|
uboVS.matrices.projection = glm::perspective(glm::radians(60.0f), (float)width / (float)height, 0.001f, 256.0f);
|
|
|
|
// View
|
|
uboVS.matrices.view = glm::translate(glm::mat4(), glm::vec3(0.0f, -1.0f, zoom));
|
|
uboVS.matrices.view = glm::rotate(uboVS.matrices.view, glm::radians(rotation.x), glm::vec3(1.0f, 0.0f, 0.0f));
|
|
uboVS.matrices.view = glm::rotate(uboVS.matrices.view, glm::radians(rotation.y), glm::vec3(0.0f, 1.0f, 0.0f));
|
|
uboVS.matrices.view = glm::rotate(uboVS.matrices.view, glm::radians(rotation.z), glm::vec3(0.0f, 0.0f, 1.0f));
|
|
|
|
// Only update the matrices part of the uniform buffer
|
|
uint8_t *pData;
|
|
VkResult err = vkMapMemory(device, uniformData.vertexShader.memory, 0, sizeof(uboVS.matrices), 0, (void **)&pData);
|
|
assert(!err);
|
|
memcpy(pData, &uboVS.matrices, sizeof(uboVS.matrices));
|
|
vkUnmapMemory(device, uniformData.vertexShader.memory);
|
|
}
|
|
|
|
void prepare()
|
|
{
|
|
VulkanExampleBase::prepare();
|
|
setupVertexDescriptions();
|
|
loadTextures();
|
|
generateQuad();
|
|
prepareUniformBuffers();
|
|
setupDescriptorSetLayout();
|
|
preparePipelines();
|
|
setupDescriptorPool();
|
|
setupDescriptorSet();
|
|
buildCommandBuffers();
|
|
prepared = true;
|
|
}
|
|
|
|
virtual void render()
|
|
{
|
|
if (!prepared)
|
|
return;
|
|
vkDeviceWaitIdle(device);
|
|
draw();
|
|
vkDeviceWaitIdle(device);
|
|
}
|
|
|
|
virtual void viewChanged()
|
|
{
|
|
updateUniformBufferMatrices();
|
|
}
|
|
};
|
|
|
|
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;
|
|
}
|