Started working on sample for VK_EXT_host_image_copy
First working version Work-in-progress
This commit is contained in:
Sascha Willems
parent
196e6a4c6b
commit
122793da95
2 changed files with 524 additions and 0 deletions
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examples/hostimagecopy/hostimagecopy.cpp
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examples/hostimagecopy/hostimagecopy.cpp
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/*
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* Vulkan Example - Host image copy using VK_EXT_host_image_copy
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*
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* This sample shows how to use host image copies to directly upload an image to the devic without having to use staging
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*
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* Work-in-progress
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*
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* Copyright (C) 2024 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 "vulkanexamplebase.h"
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#include <ktx.h>
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#include <ktxvulkan.h>
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class VulkanExample : public VulkanExampleBase
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{
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public:
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// Pointers for functions added by the host image copy extension;
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PFN_vkCopyMemoryToImageEXT vkCopyMemoryToImageEXT{ nullptr };
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PFN_vkTransitionImageLayoutEXT vkTransitionImageLayoutEXT{ nullptr };
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VkPhysicalDeviceHostImageCopyFeaturesEXT enabledPhysicalDeviceHostImageCopyFeaturesEXT{};
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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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float normal[3];
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};
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// Contains all Vulkan objects that are required to store and use a texture
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// Note that this repository contains a texture class (VulkanTexture.hpp) that encapsulates texture loading functionality in a class that is used in subsequent demos
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struct Texture {
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VkSampler sampler{ VK_NULL_HANDLE };
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VkImage image{ VK_NULL_HANDLE };
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VkDeviceMemory deviceMemory{ VK_NULL_HANDLE };
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VkImageView view{ VK_NULL_HANDLE };
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uint32_t width{ 0 };
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uint32_t height{ 0 };
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uint32_t mipLevels{ 0 };
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} texture;
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vks::Buffer vertexBuffer;
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vks::Buffer indexBuffer;
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uint32_t indexCount{ 0 };
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struct UniformData {
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glm::mat4 projection;
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glm::mat4 modelView;
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glm::vec4 viewPos;
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// This is used to change the bias for the level-of-detail (mips) in the fragment shader
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float lodBias = 0.0f;
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} uniformData;
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vks::Buffer uniformBuffer;
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VkPipeline pipeline{ VK_NULL_HANDLE };
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VkPipelineLayout pipelineLayout{ VK_NULL_HANDLE };
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VkDescriptorSet descriptorSet{ VK_NULL_HANDLE };
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VkDescriptorSetLayout descriptorSetLayout{ VK_NULL_HANDLE };
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VulkanExample() : VulkanExampleBase()
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{
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title = "Host image copy";
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camera.type = Camera::CameraType::lookat;
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camera.setPosition(glm::vec3(0.0f, 0.0f, -2.5f));
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camera.setRotation(glm::vec3(0.0f, 15.0f, 0.0f));
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camera.setPerspective(60.0f, (float)width / (float)height, 0.1f, 256.0f);
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// Enable required extensions
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enabledInstanceExtensions.push_back(VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME);
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enabledDeviceExtensions.push_back(VK_KHR_FORMAT_FEATURE_FLAGS_2_EXTENSION_NAME);
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enabledDeviceExtensions.push_back(VK_KHR_COPY_COMMANDS_2_EXTENSION_NAME);
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enabledDeviceExtensions.push_back(VK_EXT_HOST_IMAGE_COPY_EXTENSION_NAME);
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// Enable host image copy feature
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enabledPhysicalDeviceHostImageCopyFeaturesEXT.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_HOST_IMAGE_COPY_FEATURES_EXT;
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enabledPhysicalDeviceHostImageCopyFeaturesEXT.hostImageCopy = VK_TRUE;
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deviceCreatepNextChain = &enabledPhysicalDeviceHostImageCopyFeaturesEXT;
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}
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~VulkanExample()
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{
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if (device) {
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destroyTextureImage(texture);
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vkDestroyPipeline(device, pipeline, nullptr);
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vkDestroyPipelineLayout(device, pipelineLayout, nullptr);
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vkDestroyDescriptorSetLayout(device, descriptorSetLayout, nullptr);
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vertexBuffer.destroy();
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indexBuffer.destroy();
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uniformBuffer.destroy();
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}
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}
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// Enable physical device features required for this example
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virtual void getEnabledFeatures()
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{
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// Enable anisotropic filtering if supported
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if (deviceFeatures.samplerAnisotropy) {
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enabledFeatures.samplerAnisotropy = VK_TRUE;
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};
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}
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/*
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Upload texture image data to the GPU
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Vulkan offers two types of image tiling (memory layout):
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Linear tiled images:
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These are stored as is and can be copied directly to. But due to the linear nature they're not a good match for GPUs and format and feature support is very limited.
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It's not advised to use linear tiled images for anything else than copying from host to GPU if buffer copies are not an option.
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Linear tiling is thus only implemented for learning purposes, one should always prefer optimal tiled image.
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Optimal tiled images:
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These are stored in an implementation specific layout matching the capability of the hardware. They usually support more formats and features and are much faster.
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Optimal tiled images are stored on the device and not accessible by the host. So they can't be written directly to (like liner tiled images) and always require
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some sort of data copy, either from a buffer or a linear tiled image.
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In Short: Always use optimal tiled images for rendering.
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*/
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void loadTexture()
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{
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// We use the Khronos texture format (https://www.khronos.org/opengles/sdk/tools/KTX/file_format_spec/)
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std::string filename = getAssetPath() + "textures/metalplate01_rgba.ktx";
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// Texture data contains 4 channels (RGBA) with unnormalized 8-bit values, this is the most commonly supported format
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VkFormat format = VK_FORMAT_R8G8B8A8_UNORM;
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ktxResult result;
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ktxTexture* ktxTexture;
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#if defined(__ANDROID__)
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// Textures are stored inside the apk on Android (compressed)
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// So they need to be loaded via the asset manager
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AAsset* asset = AAssetManager_open(androidApp->activity->assetManager, filename.c_str(), AASSET_MODE_STREAMING);
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if (!asset) {
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vks::tools::exitFatal("Could not load texture from " + filename + "\n\nMake sure the assets submodule has been checked out and is up-to-date.", -1);
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}
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size_t size = AAsset_getLength(asset);
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assert(size > 0);
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ktx_uint8_t *textureData = new ktx_uint8_t[size];
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AAsset_read(asset, textureData, size);
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AAsset_close(asset);
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result = ktxTexture_CreateFromMemory(textureData, size, KTX_TEXTURE_CREATE_LOAD_IMAGE_DATA_BIT, &ktxTexture);
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delete[] textureData;
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#else
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if (!vks::tools::fileExists(filename)) {
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vks::tools::exitFatal("Could not load texture from " + filename + "\n\nMake sure the assets submodule has been checked out and is up-to-date.", -1);
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}
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result = ktxTexture_CreateFromNamedFile(filename.c_str(), KTX_TEXTURE_CREATE_LOAD_IMAGE_DATA_BIT, &ktxTexture);
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#endif
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assert(result == KTX_SUCCESS);
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// Get properties required for using and upload texture data from the ktx texture object
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texture.width = ktxTexture->baseWidth;
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texture.height = ktxTexture->baseHeight;
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texture.mipLevels = ktxTexture->numLevels;
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ktx_uint8_t *ktxTextureData = ktxTexture_GetData(ktxTexture);
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ktx_size_t ktxTextureSize = ktxTexture_GetSize(ktxTexture);
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// Copy data to an optimal tiled image using a direct
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// Create optimal tiled target image on the device
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VkImageCreateInfo imageCreateInfo = vks::initializers::imageCreateInfo();
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imageCreateInfo.imageType = VK_IMAGE_TYPE_2D;
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imageCreateInfo.format = format;
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imageCreateInfo.mipLevels = texture.mipLevels;
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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_OPTIMAL;
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imageCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
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// Set initial layout of the image to undefined
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imageCreateInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
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imageCreateInfo.extent = { texture.width, texture.height, 1 };
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// @todo: commtn
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imageCreateInfo.usage = VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_HOST_TRANSFER_BIT_EXT;
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VK_CHECK_RESULT(vkCreateImage(device, &imageCreateInfo, nullptr, &texture.image));
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VkMemoryAllocateInfo memAllocInfo = vks::initializers::memoryAllocateInfo();
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VkMemoryRequirements memReqs = {};
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vkGetImageMemoryRequirements(device, texture.image, &memReqs);
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memAllocInfo.allocationSize = memReqs.size;
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memAllocInfo.memoryTypeIndex = vulkanDevice->getMemoryType(memReqs.memoryTypeBits, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
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VK_CHECK_RESULT(vkAllocateMemory(device, &memAllocInfo, nullptr, &texture.deviceMemory));
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VK_CHECK_RESULT(vkBindImageMemory(device, texture.image, texture.deviceMemory, 0));
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// @todo: comment
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std::vector<VkMemoryToImageCopyEXT> memoryToImageCopies{};
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for (uint32_t i = 0; i < texture.mipLevels; i++) {
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ktx_size_t offset;
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KTX_error_code ret = ktxTexture_GetImageOffset(ktxTexture, i, 0, 0, &offset);
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assert(ret == KTX_SUCCESS);
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// Setup a buffer image copy structure for the current mip level
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VkMemoryToImageCopyEXT memoryToImageCopy = {};
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memoryToImageCopy.sType = VK_STRUCTURE_TYPE_MEMORY_TO_IMAGE_COPY_EXT;
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memoryToImageCopy.imageSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
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memoryToImageCopy.imageSubresource.mipLevel = i;
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memoryToImageCopy.imageSubresource.baseArrayLayer = 0;
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memoryToImageCopy.imageSubresource.layerCount = 1;
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memoryToImageCopy.imageExtent.width = ktxTexture->baseWidth >> i;
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memoryToImageCopy.imageExtent.height = ktxTexture->baseHeight >> i;
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memoryToImageCopy.imageExtent.depth = 1;
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memoryToImageCopy.pHostPointer = ktxTextureData + offset;
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memoryToImageCopies.push_back(memoryToImageCopy);
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}
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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 = texture.mipLevels;
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subresourceRange.layerCount = 1;
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VkHostImageLayoutTransitionInfoEXT hostImageLayoutTransitionInfo{};
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hostImageLayoutTransitionInfo.sType = VK_STRUCTURE_TYPE_HOST_IMAGE_LAYOUT_TRANSITION_INFO_EXT;
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hostImageLayoutTransitionInfo.image = texture.image;
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hostImageLayoutTransitionInfo.oldLayout = VK_IMAGE_LAYOUT_UNDEFINED;
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hostImageLayoutTransitionInfo.newLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
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hostImageLayoutTransitionInfo.subresourceRange = subresourceRange;
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vkTransitionImageLayoutEXT(device, 1, &hostImageLayoutTransitionInfo);
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VkCopyMemoryToImageInfoEXT copyMemoryInfo{};
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copyMemoryInfo.sType = VK_STRUCTURE_TYPE_COPY_MEMORY_TO_IMAGE_INFO_EXT;
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copyMemoryInfo.dstImage = texture.image;
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copyMemoryInfo.dstImageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
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copyMemoryInfo.regionCount = static_cast<uint32_t>(memoryToImageCopies.size());
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copyMemoryInfo.pRegions = memoryToImageCopies.data();
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vkCopyMemoryToImageEXT(device, ©MemoryInfo);
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ktxTexture_Destroy(ktxTexture);
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// Create a texture sampler
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VkSamplerCreateInfo sampler = vks::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_REPEAT;
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sampler.addressModeV = VK_SAMPLER_ADDRESS_MODE_REPEAT;
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sampler.addressModeW = VK_SAMPLER_ADDRESS_MODE_REPEAT;
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sampler.mipLodBias = 0.0f;
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sampler.compareOp = VK_COMPARE_OP_NEVER;
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sampler.minLod = 0.0f;
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sampler.maxLod = (float)texture.mipLevels;
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if (vulkanDevice->features.samplerAnisotropy) {
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sampler.maxAnisotropy = vulkanDevice->properties.limits.maxSamplerAnisotropy;
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sampler.anisotropyEnable = VK_TRUE;
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} else {
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sampler.maxAnisotropy = 1.0;
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sampler.anisotropyEnable = VK_FALSE;
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}
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sampler.borderColor = VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
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VK_CHECK_RESULT(vkCreateSampler(device, &sampler, nullptr, &texture.sampler));
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// Create image view
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VkImageViewCreateInfo view = vks::initializers::imageViewCreateInfo();
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view.viewType = VK_IMAGE_VIEW_TYPE_2D;
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view.format = format;
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view.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
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view.subresourceRange.baseMipLevel = 0;
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view.subresourceRange.baseArrayLayer = 0;
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view.subresourceRange.layerCount = 1;
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view.subresourceRange.levelCount = texture.mipLevels;
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view.image = texture.image;
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VK_CHECK_RESULT(vkCreateImageView(device, &view, nullptr, &texture.view));
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}
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// Free all Vulkan resources used by a texture object
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void destroyTextureImage(Texture texture)
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{
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vkDestroyImageView(device, texture.view, nullptr);
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vkDestroyImage(device, texture.image, nullptr);
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vkDestroySampler(device, texture.sampler, nullptr);
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vkFreeMemory(device, texture.deviceMemory, nullptr);
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}
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void buildCommandBuffers()
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{
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VkCommandBufferBeginInfo cmdBufInfo = vks::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 = vks::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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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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VK_CHECK_RESULT(vkBeginCommandBuffer(drawCmdBuffers[i], &cmdBufInfo));
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vkCmdBeginRenderPass(drawCmdBuffers[i], &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
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VkViewport viewport = vks::initializers::viewport((float)width, (float)height, 0.0f, 1.0f);
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vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
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VkRect2D scissor = vks::initializers::rect2D(width, height, 0, 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, nullptr);
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vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipeline);
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VkDeviceSize offsets[1] = { 0 };
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vkCmdBindVertexBuffers(drawCmdBuffers[i], 0, 1, &vertexBuffer.buffer, offsets);
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vkCmdBindIndexBuffer(drawCmdBuffers[i], indexBuffer.buffer, 0, VK_INDEX_TYPE_UINT32);
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vkCmdDrawIndexed(drawCmdBuffers[i], indexCount, 1, 0, 0, 0);
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drawUI(drawCmdBuffers[i]);
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vkCmdEndRenderPass(drawCmdBuffers[i]);
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VK_CHECK_RESULT(vkEndCommandBuffer(drawCmdBuffers[i]));
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}
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}
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// Creates a vertex and index buffer for a quad made of two triangles
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// This is used to display the texture on
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void generateQuad()
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{
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// Setup vertices for a single uv-mapped quad made from two triangles
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std::vector<Vertex> vertices =
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{
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{ { 1.0f, 1.0f, 0.0f }, { 1.0f, 1.0f },{ 0.0f, 0.0f, 1.0f } },
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{ { -1.0f, 1.0f, 0.0f }, { 0.0f, 1.0f },{ 0.0f, 0.0f, 1.0f } },
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{ { -1.0f, -1.0f, 0.0f }, { 0.0f, 0.0f },{ 0.0f, 0.0f, 1.0f } },
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{ { 1.0f, -1.0f, 0.0f }, { 1.0f, 0.0f },{ 0.0f, 0.0f, 1.0f } }
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};
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// Setup indices
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std::vector<uint32_t> indices = { 0,1,2, 2,3,0 };
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indexCount = static_cast<uint32_t>(indices.size());
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// Create buffers and upload data to the GPU
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struct StagingBuffers {
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vks::Buffer vertices;
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vks::Buffer indices;
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} stagingBuffers;
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// Host visible source buffers (staging)
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VK_CHECK_RESULT(vulkanDevice->createBuffer(VK_BUFFER_USAGE_TRANSFER_SRC_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT, &stagingBuffers.vertices, vertices.size() * sizeof(Vertex), vertices.data()));
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VK_CHECK_RESULT(vulkanDevice->createBuffer(VK_BUFFER_USAGE_TRANSFER_SRC_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT, &stagingBuffers.indices, indices.size() * sizeof(uint32_t), indices.data()));
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// Device local destination buffers
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VK_CHECK_RESULT(vulkanDevice->createBuffer(VK_BUFFER_USAGE_VERTEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, &vertexBuffer, vertices.size() * sizeof(Vertex)));
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VK_CHECK_RESULT(vulkanDevice->createBuffer(VK_BUFFER_USAGE_INDEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, &indexBuffer, indices.size() * sizeof(uint32_t)));
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// Copy from host do device
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vulkanDevice->copyBuffer(&stagingBuffers.vertices, &vertexBuffer, queue);
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vulkanDevice->copyBuffer(&stagingBuffers.indices, &indexBuffer, queue);
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// Clean up
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stagingBuffers.vertices.destroy();
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stagingBuffers.indices.destroy();
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}
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void setupDescriptors()
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{
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// Pool
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std::vector<VkDescriptorPoolSize> poolSizes = {
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vks::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 1),
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// The sample uses a combined image + sampler descriptor to sample the texture in the fragment shader
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vks::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1)
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};
|
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VkDescriptorPoolCreateInfo descriptorPoolInfo = vks::initializers::descriptorPoolCreateInfo(poolSizes, 2);
|
||||
VK_CHECK_RESULT(vkCreateDescriptorPool(device, &descriptorPoolInfo, nullptr, &descriptorPool));
|
||||
|
||||
// Layout
|
||||
std::vector<VkDescriptorSetLayoutBinding> setLayoutBindings = {
|
||||
// Binding 0 : Vertex shader uniform buffer
|
||||
vks::initializers::descriptorSetLayoutBinding(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, VK_SHADER_STAGE_VERTEX_BIT, 0),
|
||||
// Binding 1 : Fragment shader image sampler
|
||||
vks::initializers::descriptorSetLayoutBinding(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, VK_SHADER_STAGE_FRAGMENT_BIT, 1)
|
||||
};
|
||||
VkDescriptorSetLayoutCreateInfo descriptorLayout = vks::initializers::descriptorSetLayoutCreateInfo(setLayoutBindings);
|
||||
VK_CHECK_RESULT(vkCreateDescriptorSetLayout(device, &descriptorLayout, nullptr, &descriptorSetLayout));
|
||||
|
||||
// Set
|
||||
VkDescriptorSetAllocateInfo allocInfo = vks::initializers::descriptorSetAllocateInfo(descriptorPool, &descriptorSetLayout, 1);
|
||||
VK_CHECK_RESULT(vkAllocateDescriptorSets(device, &allocInfo, &descriptorSet));
|
||||
|
||||
// Setup a descriptor image info for the current texture to be used as a combined image sampler
|
||||
VkDescriptorImageInfo textureDescriptor;
|
||||
textureDescriptor.imageView = texture.view;
|
||||
textureDescriptor.sampler = texture.sampler;
|
||||
textureDescriptor.imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
|
||||
|
||||
std::vector<VkWriteDescriptorSet> writeDescriptorSets = {
|
||||
// Binding 0 : Vertex shader uniform buffer
|
||||
vks::initializers::writeDescriptorSet(descriptorSet, VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 0, &uniformBuffer.descriptor),
|
||||
// Binding 1 : Fragment shader texture sampler
|
||||
// Fragment shader: layout (binding = 1) uniform sampler2D samplerColor;
|
||||
vks::initializers::writeDescriptorSet(descriptorSet,
|
||||
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, // The descriptor set will use a combined image sampler (as opposed to splitting image and sampler)
|
||||
1, // Shader binding point 1
|
||||
&textureDescriptor) // Pointer to the descriptor image for our texture
|
||||
};
|
||||
vkUpdateDescriptorSets(device, static_cast<uint32_t>(writeDescriptorSets.size()), writeDescriptorSets.data(), 0, nullptr);
|
||||
}
|
||||
|
||||
void preparePipelines()
|
||||
{
|
||||
// Layout
|
||||
VkPipelineLayoutCreateInfo pipelineLayoutCreateInfo = vks::initializers::pipelineLayoutCreateInfo(&descriptorSetLayout, 1);
|
||||
VK_CHECK_RESULT(vkCreatePipelineLayout(device, &pipelineLayoutCreateInfo, nullptr, &pipelineLayout));
|
||||
|
||||
// Pipeline
|
||||
VkPipelineInputAssemblyStateCreateInfo inputAssemblyState = vks::initializers::pipelineInputAssemblyStateCreateInfo(VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST, 0, VK_FALSE);
|
||||
VkPipelineRasterizationStateCreateInfo rasterizationState = vks::initializers::pipelineRasterizationStateCreateInfo(VK_POLYGON_MODE_FILL, VK_CULL_MODE_NONE, VK_FRONT_FACE_COUNTER_CLOCKWISE, 0);
|
||||
VkPipelineColorBlendAttachmentState blendAttachmentState = vks::initializers::pipelineColorBlendAttachmentState(0xf, VK_FALSE);
|
||||
VkPipelineColorBlendStateCreateInfo colorBlendState = vks::initializers::pipelineColorBlendStateCreateInfo(1, &blendAttachmentState);
|
||||
VkPipelineDepthStencilStateCreateInfo depthStencilState = vks::initializers::pipelineDepthStencilStateCreateInfo(VK_TRUE, VK_TRUE, VK_COMPARE_OP_LESS_OR_EQUAL);
|
||||
VkPipelineViewportStateCreateInfo viewportState = vks::initializers::pipelineViewportStateCreateInfo(1, 1, 0);
|
||||
VkPipelineMultisampleStateCreateInfo multisampleState = vks::initializers::pipelineMultisampleStateCreateInfo(VK_SAMPLE_COUNT_1_BIT, 0);
|
||||
std::vector<VkDynamicState> dynamicStateEnables = { VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR };
|
||||
VkPipelineDynamicStateCreateInfo dynamicState = vks::initializers::pipelineDynamicStateCreateInfo(dynamicStateEnables);
|
||||
std::array<VkPipelineShaderStageCreateInfo,2> shaderStages;
|
||||
|
||||
// Shaders
|
||||
shaderStages[0] = loadShader(getShadersPath() + "texture/texture.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
|
||||
shaderStages[1] = loadShader(getShadersPath() + "texture/texture.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
|
||||
|
||||
// Vertex input state
|
||||
std::vector<VkVertexInputBindingDescription> vertexInputBindings = {
|
||||
vks::initializers::vertexInputBindingDescription(0, sizeof(Vertex), VK_VERTEX_INPUT_RATE_VERTEX)
|
||||
};
|
||||
std::vector<VkVertexInputAttributeDescription> vertexInputAttributes = {
|
||||
vks::initializers::vertexInputAttributeDescription(0, 0, VK_FORMAT_R32G32B32_SFLOAT, offsetof(Vertex, pos)),
|
||||
vks::initializers::vertexInputAttributeDescription(0, 1, VK_FORMAT_R32G32_SFLOAT, offsetof(Vertex, uv)),
|
||||
vks::initializers::vertexInputAttributeDescription(0, 2, VK_FORMAT_R32G32B32_SFLOAT, offsetof(Vertex, normal)),
|
||||
};
|
||||
VkPipelineVertexInputStateCreateInfo vertexInputState = vks::initializers::pipelineVertexInputStateCreateInfo();
|
||||
vertexInputState.vertexBindingDescriptionCount = static_cast<uint32_t>(vertexInputBindings.size());
|
||||
vertexInputState.pVertexBindingDescriptions = vertexInputBindings.data();
|
||||
vertexInputState.vertexAttributeDescriptionCount = static_cast<uint32_t>(vertexInputAttributes.size());
|
||||
vertexInputState.pVertexAttributeDescriptions = vertexInputAttributes.data();
|
||||
|
||||
VkGraphicsPipelineCreateInfo pipelineCreateInfo = vks::initializers::pipelineCreateInfo(pipelineLayout, renderPass, 0);
|
||||
pipelineCreateInfo.pVertexInputState = &vertexInputState;
|
||||
pipelineCreateInfo.pInputAssemblyState = &inputAssemblyState;
|
||||
pipelineCreateInfo.pRasterizationState = &rasterizationState;
|
||||
pipelineCreateInfo.pColorBlendState = &colorBlendState;
|
||||
pipelineCreateInfo.pMultisampleState = &multisampleState;
|
||||
pipelineCreateInfo.pViewportState = &viewportState;
|
||||
pipelineCreateInfo.pDepthStencilState = &depthStencilState;
|
||||
pipelineCreateInfo.pDynamicState = &dynamicState;
|
||||
pipelineCreateInfo.stageCount = static_cast<uint32_t>(shaderStages.size());
|
||||
pipelineCreateInfo.pStages = shaderStages.data();
|
||||
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipeline));
|
||||
}
|
||||
|
||||
// Prepare and initialize uniform buffer containing shader uniforms
|
||||
void prepareUniformBuffers()
|
||||
{
|
||||
// Vertex shader uniform buffer block
|
||||
VK_CHECK_RESULT(vulkanDevice->createBuffer(VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT, &uniformBuffer, sizeof(uniformData), &uniformData));
|
||||
VK_CHECK_RESULT(uniformBuffer.map());
|
||||
}
|
||||
|
||||
void updateUniformBuffers()
|
||||
{
|
||||
uniformData.projection = camera.matrices.perspective;
|
||||
uniformData.modelView = camera.matrices.view;
|
||||
uniformData.viewPos = camera.viewPos;
|
||||
memcpy(uniformBuffer.mapped, &uniformData, sizeof(uniformData));
|
||||
}
|
||||
|
||||
void prepare()
|
||||
{
|
||||
VulkanExampleBase::prepare();
|
||||
|
||||
// Get the function pointers required host image copies
|
||||
vkCopyMemoryToImageEXT = reinterpret_cast<PFN_vkCopyMemoryToImageEXT>(vkGetDeviceProcAddr(device, "vkCopyMemoryToImageEXT"));
|
||||
vkTransitionImageLayoutEXT = reinterpret_cast<PFN_vkTransitionImageLayoutEXT>(vkGetDeviceProcAddr(device, "vkTransitionImageLayoutEXT"));
|
||||
|
||||
loadTexture();
|
||||
generateQuad();
|
||||
prepareUniformBuffers();
|
||||
setupDescriptors();
|
||||
preparePipelines();
|
||||
buildCommandBuffers();
|
||||
prepared = true;
|
||||
}
|
||||
|
||||
void draw()
|
||||
{
|
||||
VulkanExampleBase::prepareFrame();
|
||||
submitInfo.commandBufferCount = 1;
|
||||
submitInfo.pCommandBuffers = &drawCmdBuffers[currentBuffer];
|
||||
VK_CHECK_RESULT(vkQueueSubmit(queue, 1, &submitInfo, VK_NULL_HANDLE));
|
||||
VulkanExampleBase::submitFrame();
|
||||
}
|
||||
|
||||
virtual void render()
|
||||
{
|
||||
if (!prepared)
|
||||
return;
|
||||
updateUniformBuffers();
|
||||
draw();
|
||||
}
|
||||
|
||||
virtual void OnUpdateUIOverlay(vks::UIOverlay *overlay)
|
||||
{
|
||||
if (overlay->header("Settings")) {
|
||||
if (overlay->sliderFloat("LOD bias", &uniformData.lodBias, 0.0f, (float)texture.mipLevels)) {
|
||||
updateUniformBuffers();
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
VULKAN_EXAMPLE_MAIN()
|
||||
Loading…
Add table
Add a link
Reference in a new issue