Updated graphics pipeline library sample

This commit is contained in:
Sascha Willems 2022-04-21 07:34:44 +02:00
parent 4e6b4fe021
commit 5bc82e9f02
5 changed files with 356 additions and 318 deletions

View file

@ -1,8 +1,6 @@
/*
* Vulkan Example - Using VK_EXT_graphics_pipeline_library
*
* Important note: Work-in-progress, sample is not finished yet
*
* Copyright (C) 2022 by Sascha Willems - www.saschawillems.de
*
* This code is licensed under the MIT license (MIT) (http://opensource.org/licenses/MIT)
@ -10,6 +8,7 @@
#include "vulkanexamplebase.h"
#include "VulkanglTFModel.h"
#include <mutex>
#define ENABLE_VALIDATION false
@ -18,14 +17,12 @@ class VulkanExample: public VulkanExampleBase
public:
vkglTF::Model scene;
vks::Buffer uniformBuffer;
// Same uniform buffer layout as shader
struct UBOVS {
glm::mat4 projection;
glm::mat4 modelView;
glm::vec4 lightPos = glm::vec4(0.0f, 2.0f, 1.0f, 0.0f);
} uboVS;
vks::Buffer uniformBuffer;
VkPipelineLayout pipelineLayout;
VkDescriptorSet descriptorSet;
@ -33,25 +30,37 @@ public:
VkPhysicalDeviceGraphicsPipelineLibraryFeaturesEXT graphicsPipelineLibraryFeatures{};
struct {
VkPipeline phong;
VkPipeline wireframe;
VkPipeline toon;
} pipelines;
struct PipelineLibrary {
VkPipeline vertexInputInterface;
VkPipeline preRasterizationShaders;
VkPipeline fragmentOutputInterface;
} pipelineLibrary;
std::vector<VkPipeline> pipelines{};
struct ShaderInfo {
uint32_t* code;
size_t size;
};
std::mutex mutex;
VkPipelineCache threadPipelineCache{ VK_NULL_HANDLE };
bool newPipelineCreated = false;
uint32_t splitX{ 2 };
uint32_t splitY{ 2 };
std::vector<glm::vec3> colors{};
float rotation{ 0.0f };
VulkanExample() : VulkanExampleBase(ENABLE_VALIDATION)
{
title = "Graphics pipeline library";
camera.type = Camera::CameraType::lookat;
camera.setPosition(glm::vec3(0.0f, 0.0f, -10.5f));
camera.setPosition(glm::vec3(0.0f, 0.0f, -2.0f));
camera.setRotation(glm::vec3(-25.0f, 15.0f, 0.0f));
camera.setRotationSpeed(0.5f);
camera.setPerspective(60.0f, (float)(width / 3.0f) / (float)height, 0.1f, 256.0f);
// Enable required extensions
enabledInstanceExtensions.push_back(VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME);
@ -66,32 +75,14 @@ public:
~VulkanExample()
{
// Clean up used Vulkan resources
// Note : Inherited destructor cleans up resources stored in base class
vkDestroyPipeline(device, pipelines.phong, nullptr);
if (deviceFeatures.fillModeNonSolid)
{
vkDestroyPipeline(device, pipelines.wireframe, nullptr);
}
vkDestroyPipeline(device, pipelines.toon, nullptr);
vkDestroyPipelineLayout(device, pipelineLayout, nullptr);
vkDestroyDescriptorSetLayout(device, descriptorSetLayout, nullptr);
uniformBuffer.destroy();
}
// Enable physical device features required for this example
virtual void getEnabledFeatures()
{
// Fill mode non solid is required for wireframe display
if (deviceFeatures.fillModeNonSolid) {
enabledFeatures.fillModeNonSolid = VK_TRUE;
// Wide lines must be present for line width > 1.0f
if (deviceFeatures.wideLines) {
enabledFeatures.wideLines = VK_TRUE;
if (device) {
for (auto pipeline : pipelines) {
vkDestroyPipeline(device, pipeline, nullptr);
}
};
vkDestroyPipelineLayout(device, pipelineLayout, nullptr);
vkDestroyDescriptorSetLayout(device, descriptorSetLayout, nullptr);
uniformBuffer.destroy();
}
}
void buildCommandBuffers()
@ -113,45 +104,44 @@ public:
for (int32_t i = 0; i < drawCmdBuffers.size(); ++i)
{
// Set target frame buffer
renderPassBeginInfo.framebuffer = frameBuffers[i];
VK_CHECK_RESULT(vkBeginCommandBuffer(drawCmdBuffers[i], &cmdBufInfo));
vkCmdBeginRenderPass(drawCmdBuffers[i], &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
VkViewport viewport = vks::initializers::viewport((float)width, (float)height, 0.0f, 1.0f);
vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
VkRect2D scissor = vks::initializers::rect2D(width, height, 0, 0);
vkCmdSetScissor(drawCmdBuffers[i], 0, 1, &scissor);
vkCmdBindDescriptorSets(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 0, 1, &descriptorSet, 0, NULL);
scene.bindBuffers(drawCmdBuffers[i]);
// Left : Solid colored
viewport.width = (float)width / 3.0;
vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.phong);
scene.draw(drawCmdBuffers[i]);
// Render a viewport for each pipeline
float w = (float)width / (float)splitX;
float h = (float)height / (float)splitY;
uint32_t idx = 0;
for (uint32_t y = 0; y < splitX; y++) {
for (uint32_t x = 0; x < splitY; x++) {
VkViewport viewport{};
viewport.x = w * (float)x;
viewport.y = h * (float)y;
viewport.width = w;
viewport.height = h;
viewport.minDepth = 0.0f;
viewport.maxDepth = 1.0f;
vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
// Center : Toon
viewport.x = (float)width / 3.0;
vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.toon);
// Line width > 1.0f only if wide lines feature is supported
if (deviceFeatures.wideLines) {
vkCmdSetLineWidth(drawCmdBuffers[i], 2.0f);
}
scene.draw(drawCmdBuffers[i]);
VkRect2D scissor{};
scissor.extent.width = (uint32_t)w;
scissor.extent.height = (uint32_t)h;
scissor.offset.x = (uint32_t)w * x;
scissor.offset.y = (uint32_t)h * y;
vkCmdSetScissor(drawCmdBuffers[i], 0, 1, &scissor);
if (deviceFeatures.fillModeNonSolid)
{
// Right : Wireframe
viewport.x = (float)width / 3.0 + (float)width / 3.0;
vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.wireframe);
scene.draw(drawCmdBuffers[i]);
if (pipelines.size() > idx) {
vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines[idx]);
scene.draw(drawCmdBuffers[i]);
}
idx++;
}
}
drawUI(drawCmdBuffers[i]);
@ -165,108 +155,58 @@ public:
void loadAssets()
{
const uint32_t glTFLoadingFlags = vkglTF::FileLoadingFlags::PreTransformVertices | vkglTF::FileLoadingFlags::PreMultiplyVertexColors | vkglTF::FileLoadingFlags::FlipY;
scene.loadFromFile(getAssetPath() + "models/treasure_smooth.gltf", vulkanDevice, queue, glTFLoadingFlags);
scene.loadFromFile(getAssetPath() + "models/color_teapot_spheres.gltf", vulkanDevice, queue, glTFLoadingFlags);
}
void setupDescriptorPool()
{
std::vector<VkDescriptorPoolSize> poolSizes =
{
std::vector<VkDescriptorPoolSize> poolSizes = {
vks::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 1)
};
VkDescriptorPoolCreateInfo descriptorPoolInfo =
vks::initializers::descriptorPoolCreateInfo(
poolSizes.size(),
poolSizes.data(),
2);
VkDescriptorPoolCreateInfo descriptorPoolInfo = vks::initializers::descriptorPoolCreateInfo(poolSizes, 2);
VK_CHECK_RESULT(vkCreateDescriptorPool(device, &descriptorPoolInfo, nullptr, &descriptorPool));
}
void setupDescriptorSetLayout()
{
std::vector<VkDescriptorSetLayoutBinding> setLayoutBindings =
{
// Binding 0 : Vertex shader uniform buffer
vks::initializers::descriptorSetLayoutBinding(
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
VK_SHADER_STAGE_VERTEX_BIT,
0)
std::vector<VkDescriptorSetLayoutBinding> setLayoutBindings = {
vks::initializers::descriptorSetLayoutBinding(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, VK_SHADER_STAGE_VERTEX_BIT, 0)
};
VkDescriptorSetLayoutCreateInfo descriptorLayout =
vks::initializers::descriptorSetLayoutCreateInfo(
setLayoutBindings.data(),
setLayoutBindings.size());
VkDescriptorSetLayoutCreateInfo descriptorLayout = vks::initializers::descriptorSetLayoutCreateInfo(setLayoutBindings);
VK_CHECK_RESULT(vkCreateDescriptorSetLayout(device, &descriptorLayout, nullptr, &descriptorSetLayout));
VkPipelineLayoutCreateInfo pPipelineLayoutCreateInfo =
vks::initializers::pipelineLayoutCreateInfo(
&descriptorSetLayout,
1);
VkPipelineLayoutCreateInfo pPipelineLayoutCreateInfo = vks::initializers::pipelineLayoutCreateInfo(&descriptorSetLayout, 1);
VK_CHECK_RESULT(vkCreatePipelineLayout(device, &pPipelineLayoutCreateInfo, nullptr, &pipelineLayout));
}
void setupDescriptorSet()
{
VkDescriptorSetAllocateInfo allocInfo =
vks::initializers::descriptorSetAllocateInfo(
descriptorPool,
&descriptorSetLayout,
1);
VkDescriptorSetAllocateInfo allocInfo = vks::initializers::descriptorSetAllocateInfo(descriptorPool, &descriptorSetLayout, 1);
VK_CHECK_RESULT(vkAllocateDescriptorSets(device, &allocInfo, &descriptorSet));
std::vector<VkWriteDescriptorSet> writeDescriptorSets =
{
// Binding 0 : Vertex shader uniform buffer
vks::initializers::writeDescriptorSet(
descriptorSet,
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
0,
&uniformBuffer.descriptor)
std::vector<VkWriteDescriptorSet> writeDescriptorSets = {
vks::initializers::writeDescriptorSet(descriptorSet, VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 0, &uniformBuffer.descriptor)
};
vkUpdateDescriptorSets(device, writeDescriptorSets.size(), writeDescriptorSets.data(), 0, NULL);
vkUpdateDescriptorSets(device, writeDescriptorSets.size(), writeDescriptorSets.data(), 0, nullptr);
}
// With VK_EXT_graphics_pipeline_library we don't need to create the shader module when loading it, but instead have the driver create it at linking time
// So we use a custom function that only loads the required shader information without actually creating the shader module
#if defined(__ANDROID__)
// Android shaders are stored as assets in the apk so they need to be loaded via the asset manager
bool loadShader(AAssetManager* assetManager, std::string fileName, const uint32_t** pShaderCode, size_t& shaderSize)
bool loadShaderFile(std::string fileName, ShaderInfo &shaderInfo)
{
#if defined(__ANDROID__)
// Load shader from compressed asset
AAsset* asset = AAssetManager_open(assetManager, fileName, AASSET_MODE_STREAMING);
// @todo
AAsset* asset = AAssetManager_open(androidApp->activity->assetManager, fileName, AASSET_MODE_STREAMING);
assert(asset);
size_t size = AAsset_getLength(asset);
assert(size > 0);
char* shaderCode = new char[size];
shaderInfo.size = size;
shaderInfo.code = new uint32_t[size / 4];
AAsset_read(asset, shaderCode, size);
AAsset_close(asset);
VkShaderModule shaderModule;
VkShaderModuleCreateInfo moduleCreateInfo;
moduleCreateInfo.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
moduleCreateInfo.pNext = NULL;
moduleCreateInfo.codeSize = size;
moduleCreateInfo.pCode = (uint32_t*)shaderCode;
moduleCreateInfo.flags = 0;
VK_CHECK_RESULT(vkCreateShaderModule(device, &moduleCreateInfo, NULL, &shaderModule));
delete[] shaderCode;
return shaderModule;
}
#else
bool loadShaderFile(std::string fileName, ShaderInfo &shaderInfo)
{
std::ifstream is(fileName, std::ios::binary | std::ios::in | std::ios::ate);
if (is.is_open())
@ -279,223 +219,209 @@ public:
return true;
} else {
std::cerr << "Error: Could not open shader file \"" << fileName << "\"" << "\n";
throw std::runtime_error("Could open shader file");
return false;
}
}
#endif
VkPipeline createVertexInputState(VkDevice device, VkPipelineCache vertexShaderCache, VkPipelineLayout layout)
{
VkGraphicsPipelineLibraryCreateInfoEXT libraryInfo{};
libraryInfo.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_LIBRARY_CREATE_INFO_EXT;
libraryInfo.flags = VK_GRAPHICS_PIPELINE_LIBRARY_VERTEX_INPUT_INTERFACE_BIT_EXT;
VkPipelineVertexInputStateCreateInfo vertexInputState = *vkglTF::Vertex::getPipelineVertexInputState({ vkglTF::VertexComponent::Position, vkglTF::VertexComponent::Normal, vkglTF::VertexComponent::Color });
VkPipelineInputAssemblyStateCreateInfo inputAssemblyState = vks::initializers::pipelineInputAssemblyStateCreateInfo(VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST, 0, VK_FALSE);
VkGraphicsPipelineCreateInfo pipelineCI{};
pipelineCI.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
pipelineCI.pNext = &libraryInfo;
pipelineCI.pInputAssemblyState = &inputAssemblyState;
pipelineCI.pVertexInputState = &vertexInputState;
VkPipeline library = VK_NULL_HANDLE;
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, vertexShaderCache, 1, &pipelineCI, nullptr, &library));
return library;
}
VkPipeline createVertexShader(VkDevice device, const ShaderInfo shaderInfo, VkPipelineCache vertexShaderCache, VkPipelineLayout layout)
// Create the shared pipeline parts up-front
void preparePipelineLibrary()
{
VkGraphicsPipelineLibraryCreateInfoEXT libraryInfo{};
libraryInfo.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_LIBRARY_CREATE_INFO_EXT;
libraryInfo.flags = VK_GRAPHICS_PIPELINE_LIBRARY_PRE_RASTERIZATION_SHADERS_BIT_EXT;
// Create a pipeline library for the vertex input interface
{
VkGraphicsPipelineLibraryCreateInfoEXT libraryInfo{};
libraryInfo.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_LIBRARY_CREATE_INFO_EXT;
libraryInfo.flags = VK_GRAPHICS_PIPELINE_LIBRARY_VERTEX_INPUT_INTERFACE_BIT_EXT;
VkDynamicState vertexDynamicStates[2] = {
VK_DYNAMIC_STATE_VIEWPORT,
VK_DYNAMIC_STATE_SCISSOR };
VkPipelineVertexInputStateCreateInfo vertexInputState = *vkglTF::Vertex::getPipelineVertexInputState({ vkglTF::VertexComponent::Position, vkglTF::VertexComponent::Normal, vkglTF::VertexComponent::Color });
VkPipelineInputAssemblyStateCreateInfo inputAssemblyState = vks::initializers::pipelineInputAssemblyStateCreateInfo(VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST, 0, VK_FALSE);
VkPipelineDynamicStateCreateInfo dynamicInfo{};
dynamicInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO;
dynamicInfo.dynamicStateCount = 2;
dynamicInfo.pDynamicStates = vertexDynamicStates;
VkGraphicsPipelineCreateInfo pipelineCI{};
pipelineCI.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
pipelineCI.flags = VK_PIPELINE_CREATE_LIBRARY_BIT_KHR | VK_PIPELINE_CREATE_RETAIN_LINK_TIME_OPTIMIZATION_INFO_BIT_EXT;
pipelineCI.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
pipelineCI.pNext = &libraryInfo;
pipelineCI.pInputAssemblyState = &inputAssemblyState;
pipelineCI.pVertexInputState = &vertexInputState;
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &pipelineLibrary.vertexInputInterface));
}
VkPipelineViewportStateCreateInfo viewportState = {};
viewportState.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
viewportState.viewportCount = 1;
viewportState.scissorCount = 1;
// Creata a pipeline library for the vertex shader stage
{
VkGraphicsPipelineLibraryCreateInfoEXT libraryInfo{};
libraryInfo.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_LIBRARY_CREATE_INFO_EXT;
libraryInfo.flags = VK_GRAPHICS_PIPELINE_LIBRARY_PRE_RASTERIZATION_SHADERS_BIT_EXT;
VkPipelineRasterizationStateCreateInfo rasterizationState = vks::initializers::pipelineRasterizationStateCreateInfo(VK_POLYGON_MODE_FILL, VK_CULL_MODE_BACK_BIT, VK_FRONT_FACE_COUNTER_CLOCKWISE, 0);
VkDynamicState vertexDynamicStates[2] = {
VK_DYNAMIC_STATE_VIEWPORT,
VK_DYNAMIC_STATE_SCISSOR };
VkShaderModuleCreateInfo shaderModuleCreateInfo{};
shaderModuleCreateInfo.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
shaderModuleCreateInfo.codeSize = shaderInfo.size;
shaderModuleCreateInfo.pCode = shaderInfo.code;
VkPipelineDynamicStateCreateInfo dynamicInfo{};
dynamicInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO;
dynamicInfo.dynamicStateCount = 2;
dynamicInfo.pDynamicStates = vertexDynamicStates;
VkPipelineShaderStageCreateInfo shaderStageCreateInfo{};
shaderStageCreateInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
shaderStageCreateInfo.pNext = &shaderModuleCreateInfo;
shaderStageCreateInfo.stage = VK_SHADER_STAGE_VERTEX_BIT;
shaderStageCreateInfo.pName = "main";
VkPipelineViewportStateCreateInfo viewportState = {};
viewportState.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;
viewportState.viewportCount = 1;
viewportState.scissorCount = 1;
VkGraphicsPipelineCreateInfo pipelineCI{};
pipelineCI.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
pipelineCI.pNext = &libraryInfo;
pipelineCI.renderPass = renderPass;
pipelineCI.flags = VK_PIPELINE_CREATE_LIBRARY_BIT_KHR | VK_PIPELINE_CREATE_RETAIN_LINK_TIME_OPTIMIZATION_INFO_BIT_EXT;
pipelineCI.stageCount = 1;
pipelineCI.pStages = &shaderStageCreateInfo;
pipelineCI.layout = layout;
pipelineCI.pDynamicState = &dynamicInfo;
pipelineCI.pViewportState = &viewportState;
pipelineCI.pRasterizationState = &rasterizationState;
VkPipelineRasterizationStateCreateInfo rasterizationState = vks::initializers::pipelineRasterizationStateCreateInfo(VK_POLYGON_MODE_FILL, VK_CULL_MODE_BACK_BIT, VK_FRONT_FACE_COUNTER_CLOCKWISE, 0);
VkPipeline library = VK_NULL_HANDLE;
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, vertexShaderCache, 1, &pipelineCI, nullptr, &library));
return library;
// @todo: we can skip the pipeline shader module info and directly consume the shader module
ShaderInfo shaderInfo{};
loadShaderFile(getShadersPath() + "graphicspipelinelibrary/shared.vert.spv", shaderInfo);
VkShaderModuleCreateInfo shaderModuleCI{};
shaderModuleCI.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
shaderModuleCI.codeSize = shaderInfo.size;
shaderModuleCI.pCode = shaderInfo.code;
VkPipelineShaderStageCreateInfo shaderStageCI{};
shaderStageCI.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
shaderStageCI.pNext = &shaderModuleCI;
shaderStageCI.stage = VK_SHADER_STAGE_VERTEX_BIT;
shaderStageCI.pName = "main";
VkGraphicsPipelineCreateInfo pipelineCI{};
pipelineCI.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
pipelineCI.pNext = &libraryInfo;
pipelineCI.renderPass = renderPass;
pipelineCI.flags = VK_PIPELINE_CREATE_LIBRARY_BIT_KHR | VK_PIPELINE_CREATE_RETAIN_LINK_TIME_OPTIMIZATION_INFO_BIT_EXT;
pipelineCI.stageCount = 1;
pipelineCI.pStages = &shaderStageCI;
pipelineCI.layout = pipelineLayout;
pipelineCI.pDynamicState = &dynamicInfo;
pipelineCI.pViewportState = &viewportState;
pipelineCI.pRasterizationState = &rasterizationState;
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &pipelineLibrary.preRasterizationShaders));
}
// Create a pipeline library for the fragment output interface
{
VkGraphicsPipelineLibraryCreateInfoEXT libraryInfo{};
libraryInfo.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_LIBRARY_CREATE_INFO_EXT;
libraryInfo.flags = VK_GRAPHICS_PIPELINE_LIBRARY_FRAGMENT_OUTPUT_INTERFACE_BIT_EXT;
VkPipelineColorBlendAttachmentState blendAttachmentSstate = vks::initializers::pipelineColorBlendAttachmentState(0xf, VK_FALSE);
VkPipelineColorBlendStateCreateInfo colorBlendState = vks::initializers::pipelineColorBlendStateCreateInfo(1, &blendAttachmentSstate);
VkPipelineMultisampleStateCreateInfo multisampleState = vks::initializers::pipelineMultisampleStateCreateInfo(VK_SAMPLE_COUNT_1_BIT);
VkGraphicsPipelineCreateInfo pipelineLibraryCI{};
pipelineLibraryCI.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
pipelineLibraryCI.pNext = &libraryInfo;
pipelineLibraryCI.layout = pipelineLayout;
pipelineLibraryCI.renderPass = renderPass;
pipelineLibraryCI.pColorBlendState = &colorBlendState;
pipelineLibraryCI.pMultisampleState = &multisampleState;
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineLibraryCI, nullptr, &pipelineLibrary.fragmentOutputInterface));
}
}
VkPipeline createFragmentShader(VkDevice device, const ShaderInfo shaderInfo, VkPipelineCache vertexShaderCache, VkPipelineLayout layout)
void threadFn()
{
const std::lock_guard<std::mutex> lock(mutex);
auto start = std::chrono::steady_clock::now();
prepareNewPipeline();
newPipelineCreated = true;
// Change viewport/draw count
if (pipelines.size() > splitX * splitY) {
splitX++;
splitY++;
}
auto delta = std::chrono::duration_cast<std::chrono::microseconds>(std::chrono::steady_clock::now() - start);
std::cout << "Pipeline created in " << delta.count() << " microseconds\n";
}
// Create a new pipeline using the pipeline library and a customized fragment shader
// Used from a thread
void prepareNewPipeline()
{
// Create the fragment shader part of the pipeline library with some random options
VkGraphicsPipelineLibraryCreateInfoEXT libraryInfo{};
libraryInfo.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_LIBRARY_CREATE_INFO_EXT;
libraryInfo.flags = VK_GRAPHICS_PIPELINE_LIBRARY_FRAGMENT_SHADER_BIT_EXT;
VkPipelineDepthStencilStateCreateInfo depthStencilState = vks::initializers::pipelineDepthStencilStateCreateInfo(VK_TRUE, VK_TRUE, VK_COMPARE_OP_LESS_OR_EQUAL);
VkPipelineMultisampleStateCreateInfo multisampleState = vks::initializers::pipelineMultisampleStateCreateInfo(VK_SAMPLE_COUNT_1_BIT);
VkPipelineMultisampleStateCreateInfo multisampleState = vks::initializers::pipelineMultisampleStateCreateInfo(VK_SAMPLE_COUNT_1_BIT);
VkShaderModuleCreateInfo shaderModuleCreateInfo{};
shaderModuleCreateInfo.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
shaderModuleCreateInfo.codeSize = shaderInfo.size;
shaderModuleCreateInfo.pCode = shaderInfo.code;
// Using the pipeline library extension, we can skip the pipeline shader module creation and directly pass the shader code to the pipeline
ShaderInfo shaderInfo{};
loadShaderFile(getShadersPath() + "graphicspipelinelibrary/uber.frag.spv", shaderInfo);
VkPipelineShaderStageCreateInfo shaderStageCreateInfo{};
shaderStageCreateInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
shaderStageCreateInfo.pNext = &shaderModuleCreateInfo;
shaderStageCreateInfo.stage = VK_SHADER_STAGE_FRAGMENT_BIT;
shaderStageCreateInfo.pName = "main";
VkShaderModuleCreateInfo shaderModuleCI{};
shaderModuleCI.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
shaderModuleCI.codeSize = shaderInfo.size;
shaderModuleCI.pCode = shaderInfo.code;
VkPipelineShaderStageCreateInfo shaderStageCI{};
shaderStageCI.sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;
shaderStageCI.pNext = &shaderModuleCI;
shaderStageCI.stage = VK_SHADER_STAGE_FRAGMENT_BIT;
shaderStageCI.pName = "main";
// Select lighting model using a specialization constant
srand((unsigned int)time(NULL));
uint32_t lighting_model = (int)(rand() % 4);
// Each shader constant of a shader stage corresponds to one map entry
VkSpecializationMapEntry specializationMapEntry{};
specializationMapEntry.constantID = 0;
specializationMapEntry.size = sizeof(uint32_t);
VkSpecializationInfo specializationInfo{};
specializationInfo.mapEntryCount = 1;
specializationInfo.pMapEntries = &specializationMapEntry;
specializationInfo.dataSize = sizeof(uint32_t);
specializationInfo.pData = &lighting_model;
shaderStageCI.pSpecializationInfo = &specializationInfo;
VkGraphicsPipelineCreateInfo pipelineCI{};
pipelineCI.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
pipelineCI.pNext = &libraryInfo;
pipelineCI.flags = VK_PIPELINE_CREATE_LIBRARY_BIT_KHR | VK_PIPELINE_CREATE_RETAIN_LINK_TIME_OPTIMIZATION_INFO_BIT_EXT;
pipelineCI.stageCount = 1;
pipelineCI.pStages = &shaderStageCreateInfo;
pipelineCI.layout = layout;
pipelineCI.pStages = &shaderStageCI;
pipelineCI.layout = pipelineLayout;
pipelineCI.renderPass = renderPass;
pipelineCI.pDepthStencilState = &depthStencilState;
pipelineCI.pMultisampleState = &multisampleState;
VkPipeline fragment_shader = VK_NULL_HANDLE;
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, threadPipelineCache, 1, &pipelineCI, nullptr, &fragment_shader));
VkPipeline library = VK_NULL_HANDLE;
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, vertexShaderCache, 1, &pipelineCI, nullptr, &library));
return library;
}
// Create the pipeline using the pre-built pipeline library parts
// Except for above fragment shader part all parts have been pre-built and will be re-used
std::vector<VkPipeline> libraries = {
pipelineLibrary.vertexInputInterface,
pipelineLibrary.preRasterizationShaders,
fragment_shader,
pipelineLibrary.fragmentOutputInterface };
VkPipeline createFragmentOutputState(VkDevice device, VkPipelineCache vertexShaderCache, VkPipelineLayout layout)
{
VkGraphicsPipelineLibraryCreateInfoEXT libraryInfo{};
libraryInfo.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_LIBRARY_CREATE_INFO_EXT;
libraryInfo.flags = VK_GRAPHICS_PIPELINE_LIBRARY_FRAGMENT_OUTPUT_INTERFACE_BIT_EXT;
// Link the library parts into a graphics pipeline
VkPipelineLibraryCreateInfoKHR pipelineLibraryCI{};
pipelineLibraryCI.sType = VK_STRUCTURE_TYPE_PIPELINE_LIBRARY_CREATE_INFO_KHR;
pipelineLibraryCI.libraryCount = static_cast<uint32_t>(libraries.size());
pipelineLibraryCI.pLibraries = libraries.data();
VkPipelineColorBlendAttachmentState blendAttachmentState = vks::initializers::pipelineColorBlendAttachmentState(0xf, VK_FALSE);
VkPipelineColorBlendStateCreateInfo colorBlendState = vks::initializers::pipelineColorBlendStateCreateInfo(1, &blendAttachmentState);
VkPipelineMultisampleStateCreateInfo multisampleState = vks::initializers::pipelineMultisampleStateCreateInfo(VK_SAMPLE_COUNT_1_BIT);
// If set to true, we pass VK_PIPELINE_CREATE_LINK_TIME_OPTIMIZATION_BIT_EXT which will let the implementation do additional optimizations at link time
// This trades in pipeline creation time for run-time performance
bool optimized = true;
VkGraphicsPipelineCreateInfo pipelineCI{};
pipelineCI.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
pipelineCI.pNext = &libraryInfo;
pipelineCI.flags = VK_PIPELINE_CREATE_LIBRARY_BIT_KHR | VK_PIPELINE_CREATE_RETAIN_LINK_TIME_OPTIMIZATION_INFO_BIT_EXT;
pipelineCI.layout = layout;
pipelineCI.renderPass = renderPass;
pipelineCI.pColorBlendState = &colorBlendState;
pipelineCI.pMultisampleState = &multisampleState;
VkPipeline library = VK_NULL_HANDLE;
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, vertexShaderCache, 1, &pipelineCI, nullptr, &library));
return library;
}
VkPipeline linkExecutable(VkDevice device, const std::vector<VkPipeline> libraries, VkPipelineCache executableCache, bool optimized)
{
VkPipelineLibraryCreateInfoKHR linkingInfo{};
linkingInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_LIBRARY_CREATE_INFO_KHR;
linkingInfo.libraryCount = static_cast<uint32_t>(libraries.size());
linkingInfo.pLibraries = libraries.data();
VkGraphicsPipelineCreateInfo executablePipelineCreateInfo{};
executablePipelineCreateInfo.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
executablePipelineCreateInfo.pNext = &linkingInfo;
executablePipelineCreateInfo.flags |= optimized ? VK_PIPELINE_CREATE_LINK_TIME_OPTIMIZATION_BIT_EXT : 0;
VkGraphicsPipelineCreateInfo executablePipelineCI{};
executablePipelineCI.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;
executablePipelineCI.pNext = &pipelineLibraryCI;
executablePipelineCI.flags |= optimized ? VK_PIPELINE_CREATE_LINK_TIME_OPTIMIZATION_BIT_EXT : 0;
VkPipeline executable = VK_NULL_HANDLE;
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, executableCache, 1, &executablePipelineCreateInfo, nullptr, &executable));
return executable;
}
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, threadPipelineCache, 1, &executablePipelineCI, nullptr, &executable));
void preparePipelines()
{
struct Shaders {
ShaderInfo phongVS;
ShaderInfo phongFS;
} shaders;
loadShaderFile(getShadersPath() + "pipelines/phong.vert.spv", shaders.phongVS);
loadShaderFile(getShadersPath() + "pipelines/phong.frag.spv", shaders.phongFS);
VkPipelineShaderStageCreateInfo vsShader = loadShader(getShadersPath() + "pipelines/phong.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
VkPipelineShaderStageCreateInfo fsShader = loadShader(getShadersPath() + "pipelines/phong.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
std::vector<VkPipeline> libraries = {
createVertexInputState(device, pipelineCache, pipelineLayout),
createVertexShader(device, shaders.phongVS, pipelineCache, pipelineLayout),
createFragmentShader(device, shaders.phongFS, pipelineCache, pipelineLayout),
createFragmentOutputState(device, pipelineCache, pipelineLayout),
};
VkPipeline compiledPipeline = linkExecutable(device, libraries, pipelineCache, true);
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_BACK_BIT, 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);
std::vector<VkDynamicState> dynamicStateEnables = { VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR, VK_DYNAMIC_STATE_LINE_WIDTH, };
VkPipelineDynamicStateCreateInfo dynamicState = vks::initializers::pipelineDynamicStateCreateInfo(dynamicStateEnables);
std::array<VkPipelineShaderStageCreateInfo, 2> shaderStages;
VkGraphicsPipelineCreateInfo pipelineCI = vks::initializers::pipelineCreateInfo(pipelineLayout, renderPass);
pipelineCI.pInputAssemblyState = &inputAssemblyState;
pipelineCI.pRasterizationState = &rasterizationState;
pipelineCI.pColorBlendState = &colorBlendState;
pipelineCI.pMultisampleState = &multisampleState;
pipelineCI.pViewportState = &viewportState;
pipelineCI.pDepthStencilState = &depthStencilState;
pipelineCI.pDynamicState = &dynamicState;
pipelineCI.stageCount = shaderStages.size();
pipelineCI.pStages = shaderStages.data();
pipelineCI.pVertexInputState = vkglTF::Vertex::getPipelineVertexInputState({vkglTF::VertexComponent::Position, vkglTF::VertexComponent::Normal, vkglTF::VertexComponent::Color});
// Create the graphics pipeline state objects
// Textured pipeline
// Phong shading pipeline
//shaderStages[0] = loadShader(getShadersPath() + "pipelines/phong.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
//shaderStages[1] = loadShader(getShadersPath() + "pipelines/phong.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
//VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &pipelines.phong));
pipelines.phong = compiledPipeline;
// Toon shading pipeline
shaderStages[0] = loadShader(getShadersPath() + "pipelines/toon.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
shaderStages[1] = loadShader(getShadersPath() + "pipelines/toon.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &pipelines.toon));
// Pipeline for wire frame rendering
// Non solid rendering is not a mandatory Vulkan feature
if (deviceFeatures.fillModeNonSolid)
{
rasterizationState.polygonMode = VK_POLYGON_MODE_LINE;
shaderStages[0] = loadShader(getShadersPath() + "pipelines/wireframe.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
shaderStages[1] = loadShader(getShadersPath() + "pipelines/wireframe.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCI, nullptr, &pipelines.wireframe));
}
pipelines.push_back(executable);
}
// Prepare and initialize uniform buffer containing shader uniforms
@ -516,8 +442,12 @@ public:
void updateUniformBuffers()
{
if (!paused) {
rotation += frameTimer * 0.1f;
}
camera.setPerspective(45.0f, ((float)width / (float)splitX) / ((float)height / (float)splitY), 0.1f, 256.0f);
uboVS.projection = camera.matrices.perspective;
uboVS.modelView = camera.matrices.view;
uboVS.modelView = camera.matrices.view * glm::rotate(glm::mat4(1.0f), glm::radians(rotation * 360.0f), glm::vec3(0.0f, 1.0f, 0.0f));
memcpy(uniformBuffer.mapped, &uboVS, sizeof(uboVS));
}
@ -538,10 +468,20 @@ public:
loadAssets();
prepareUniformBuffers();
setupDescriptorSetLayout();
preparePipelines();
preparePipelineLibrary();
setupDescriptorPool();
setupDescriptorSet();
buildCommandBuffers();
// Create a separate pipeline cache for the pipeline creation thread
VkPipelineCacheCreateInfo pipelineCachCI = {};
pipelineCachCI.sType = VK_STRUCTURE_TYPE_PIPELINE_CACHE_CREATE_INFO;
vkCreatePipelineCache(device, &pipelineCachCI, nullptr, &threadPipelineCache);
// Create first pipeline using a background thread
std::thread pipelineGenerationThread(&VulkanExample::threadFn, this);
pipelineGenerationThread.detach();
prepared = true;
}
@ -549,18 +489,22 @@ public:
{
if (!prepared)
return;
draw();
if (camera.updated) {
updateUniformBuffers();
if (newPipelineCreated)
{
newPipelineCreated = false;
vkQueueWaitIdle(queue);
buildCommandBuffers();
}
draw();
updateUniformBuffers();
}
virtual void OnUpdateUIOverlay(vks::UIOverlay *overlay)
{
if (!deviceFeatures.fillModeNonSolid) {
if (overlay->header("Info")) {
overlay->text("Non solid fill modes not supported!");
}
if (overlay->button("New pipeline")) {
// Spwan a thread to create a new pipeline in the background
std::thread pipelineGenerationThread(&VulkanExample::threadFn, this);
pipelineGenerationThread.detach();
}
}
};