diff options
Diffstat (limited to 'engine/xe_pipeline.cpp')
| -rwxr-xr-x | engine/xe_pipeline.cpp | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/engine/xe_pipeline.cpp b/engine/xe_pipeline.cpp new file mode 100755 index 0000000..d06d09b --- /dev/null +++ b/engine/xe_pipeline.cpp @@ -0,0 +1,204 @@ +#include "xe_pipeline.hpp" + +#include "xe_model.hpp" + +#include <cstdint> +#include <fstream> +#include <stdexcept> +#include <vector> +#include <iostream> +#include <vulkan/vulkan_core.h> +#include <assert.h> + +namespace xe { + + XePipeline::XePipeline( + XeDevice &device, + const std::string& vertFilepath, + const std::string& fragFilepath, + const PipelineConfigInfo& configInfo) + : xeDevice{device} { + createGraphicsPipeline(vertFilepath, fragFilepath, configInfo); + } + + XePipeline::~XePipeline() { + vkDestroyShaderModule(xeDevice.device(), vertShaderModule, nullptr); + vkDestroyShaderModule(xeDevice.device(), fragShaderModule, nullptr); + vkDestroyPipeline(xeDevice.device(), graphicsPipeline, nullptr); + } + + std::vector<char> XePipeline::readFile(const std::string& filepath) { + + std::ifstream file{filepath, std::ios::ate | std::ios::binary}; + + if (!file.is_open()) { + throw std::runtime_error("faile to open file " + filepath); + } + + size_t fileSize = static_cast<size_t>(file.tellg()); + std::vector<char> buffer(fileSize); + + file.seekg(0); + file.read(buffer.data(), fileSize); + + file.close(); + return buffer; + }; + + void XePipeline::createGraphicsPipeline( + const std::string& vertFilePath, + const std::string& fragFilepath, + const PipelineConfigInfo& configInfo) { + + assert( + configInfo.pipelineLayout != VK_NULL_HANDLE && + "Cannot create graphics pipeline:: no pipelineLayout provided in configInfo"); + assert( + configInfo.renderPass != VK_NULL_HANDLE && + "Cannot create graphics pipeline:: no renderPass provided in configInfo"); + auto vertCode = readFile(vertFilePath); + auto fragCode = readFile(fragFilepath); + + createShaderModule(vertCode, &vertShaderModule); + createShaderModule(fragCode, &fragShaderModule); + + VkPipelineShaderStageCreateInfo shaderStages[2]; + shaderStages[0].sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO; + shaderStages[0].stage = VK_SHADER_STAGE_VERTEX_BIT; + shaderStages[0]. module = vertShaderModule; + shaderStages[0].pName = "main"; + shaderStages[0].flags = 0; + shaderStages[0].pNext = nullptr; + shaderStages[0].pSpecializationInfo = nullptr; + shaderStages[1].sType = VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO; + shaderStages[1].stage = VK_SHADER_STAGE_FRAGMENT_BIT; + shaderStages[1]. module = fragShaderModule; + shaderStages[1].pName = "main"; + shaderStages[1].flags = 0; + shaderStages[1].pNext = nullptr; + shaderStages[1].pSpecializationInfo = nullptr; + + auto bindingDescriptions = XeModel::Vertex::getBindingDescriptions(); + auto attributeDescptions = XeModel::Vertex::getAttributeDescriptions(); + VkPipelineVertexInputStateCreateInfo vertexInputInfo{}; + vertexInputInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO; + vertexInputInfo.vertexAttributeDescriptionCount = static_cast<uint32_t>(attributeDescptions.size()); + vertexInputInfo.vertexBindingDescriptionCount = static_cast<uint32_t>(bindingDescriptions.size()); + vertexInputInfo.pVertexAttributeDescriptions = attributeDescptions.data(); + vertexInputInfo.pVertexBindingDescriptions = bindingDescriptions.data(); + + VkGraphicsPipelineCreateInfo pipelineInfo{}; + pipelineInfo.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO; + pipelineInfo.stageCount = 2; + pipelineInfo.pStages = shaderStages; + pipelineInfo.pVertexInputState = &vertexInputInfo; + pipelineInfo.pInputAssemblyState = &configInfo.inputAssemblyInfo; + pipelineInfo.pViewportState = &configInfo.viewportInfo; + pipelineInfo.pRasterizationState = &configInfo.rasterizationInfo; + pipelineInfo.pMultisampleState = &configInfo.multisampleInfo; + pipelineInfo.pColorBlendState = &configInfo.colorBlendInfo; + pipelineInfo.pDepthStencilState = &configInfo.depthStencilInfo; + pipelineInfo.pDynamicState = &configInfo.dynamicStateInfo; + + pipelineInfo.layout = configInfo.pipelineLayout; + pipelineInfo.renderPass = configInfo.renderPass; + pipelineInfo.subpass = configInfo.subpass; + + pipelineInfo.basePipelineIndex = -1; + pipelineInfo.basePipelineHandle = VK_NULL_HANDLE; + + if(vkCreateGraphicsPipelines(xeDevice.device(), VK_NULL_HANDLE, 1, &pipelineInfo, nullptr, &graphicsPipeline) != VK_SUCCESS){ + throw std::runtime_error("failed to create graphics pipeline"); + } + } + + void XePipeline::createShaderModule(const std::vector<char>& code, VkShaderModule* shaderModule) { + VkShaderModuleCreateInfo createInfo{}; + createInfo.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO; + createInfo.codeSize = code.size(); + createInfo.pCode = reinterpret_cast<const uint32_t*>(code.data()); + + if(vkCreateShaderModule(xeDevice.device(), &createInfo, nullptr, shaderModule) != VK_SUCCESS) { + throw std::runtime_error("failed to create shader module"); + } + + } + + void XePipeline::bind(VkCommandBuffer commandBuffer) { + vkCmdBindPipeline(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, graphicsPipeline); + } + + void XePipeline::defaultPipelineConfigInfo(PipelineConfigInfo& configInfo) { + + configInfo.inputAssemblyInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO; + configInfo.inputAssemblyInfo.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST; + configInfo.inputAssemblyInfo.primitiveRestartEnable = VK_FALSE; + + configInfo.viewportInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO; + configInfo.viewportInfo.viewportCount = 1; + configInfo.viewportInfo.pViewports = nullptr; + configInfo.viewportInfo.scissorCount = 1; + configInfo.viewportInfo.pScissors = nullptr; + + configInfo.rasterizationInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO; + configInfo.rasterizationInfo.depthClampEnable = VK_FALSE; + configInfo.rasterizationInfo.rasterizerDiscardEnable = VK_FALSE; + configInfo.rasterizationInfo.polygonMode = VK_POLYGON_MODE_FILL; + configInfo.rasterizationInfo.lineWidth = 1.0f; + configInfo.rasterizationInfo.cullMode = VK_CULL_MODE_NONE; + configInfo.rasterizationInfo.frontFace = VK_FRONT_FACE_CLOCKWISE; + configInfo.rasterizationInfo.depthBiasEnable = VK_FALSE; + configInfo.rasterizationInfo.depthBiasConstantFactor = 0.0f; + configInfo.rasterizationInfo.depthBiasClamp = 0.0f; + configInfo.rasterizationInfo.depthBiasSlopeFactor = 0.0f; + + configInfo.multisampleInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO; + configInfo.multisampleInfo.sampleShadingEnable = VK_FALSE; + configInfo.multisampleInfo.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT; + configInfo.multisampleInfo.minSampleShading = 1.0f; + configInfo.multisampleInfo.pSampleMask = nullptr; + configInfo.multisampleInfo.alphaToCoverageEnable = VK_FALSE; + configInfo.multisampleInfo.alphaToOneEnable = VK_FALSE; + + configInfo.colorBlendAttachment.colorWriteMask = + VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT | VK_COLOR_COMPONENT_B_BIT | + VK_COLOR_COMPONENT_A_BIT; + configInfo.colorBlendAttachment.blendEnable = VK_FALSE; + configInfo.colorBlendAttachment.srcColorBlendFactor = VK_BLEND_FACTOR_ONE; + configInfo.colorBlendAttachment.dstColorBlendFactor = VK_BLEND_FACTOR_ZERO; + configInfo.colorBlendAttachment.colorBlendOp = VK_BLEND_OP_ADD; + configInfo.colorBlendAttachment.srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE; + configInfo.colorBlendAttachment.dstAlphaBlendFactor = VK_BLEND_FACTOR_ZERO; + configInfo.colorBlendAttachment.alphaBlendOp = VK_BLEND_OP_ADD; + + configInfo.colorBlendInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO; + configInfo.colorBlendInfo.logicOpEnable = VK_FALSE; + configInfo.colorBlendInfo.logicOp = VK_LOGIC_OP_COPY; + configInfo.colorBlendInfo.attachmentCount = 1; + configInfo.colorBlendInfo.pAttachments = &configInfo.colorBlendAttachment; + configInfo.colorBlendInfo.blendConstants[0] = 0.0f; + configInfo.colorBlendInfo.blendConstants[1] = 0.0f; + configInfo.colorBlendInfo.blendConstants[2] = 0.0f; + configInfo.colorBlendInfo.blendConstants[3] = 0.0f; + + configInfo.depthStencilInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_DEPTH_STENCIL_STATE_CREATE_INFO; + configInfo.depthStencilInfo.depthTestEnable = VK_TRUE; + configInfo.depthStencilInfo.depthWriteEnable = VK_TRUE; + configInfo.depthStencilInfo.depthCompareOp = VK_COMPARE_OP_LESS; + configInfo.depthStencilInfo.depthBoundsTestEnable = VK_FALSE; + configInfo.depthStencilInfo.minDepthBounds = 0.0f; + configInfo.depthStencilInfo.maxDepthBounds = 1.0f; + configInfo.depthStencilInfo.stencilTestEnable = VK_FALSE; + configInfo.depthStencilInfo.front = {}; + configInfo.depthStencilInfo.back = {}; + + configInfo.dynamicStateEnables = {VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR}; + configInfo.dynamicStateInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO; + configInfo.dynamicStateInfo.pDynamicStates = configInfo.dynamicStateEnables.data(); + configInfo.dynamicStateInfo.dynamicStateCount = + static_cast<uint32_t>(configInfo.dynamicStateEnables.size()); + configInfo.dynamicStateInfo.flags = 0; + + } + +}
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