自主式响应网站,企业宣传视频制作免费模板,网站维护中 源码,软件开发工具推荐目录 先叨叨Git信息关键代码TestPipeline::Initialize() 编译运行 先叨叨
到上篇为止已经创建了FrameBuffer和RenderPass。建立Pipeline的先决条件已经具备。本篇就来创建Pipeline。
Git信息
repository: https://gitee.com/J8_series/easy-car-uitag: 10-CreatePipelineurl… 目录 先叨叨Git信息关键代码TestPipeline::Initialize() 编译运行 先叨叨
到上篇为止已经创建了FrameBuffer和RenderPass。建立Pipeline的先决条件已经具备。本篇就来创建Pipeline。
Git信息
repository: https://gitee.com/J8_series/easy-car-uitag: 10-CreatePipelineurl: https://gitee.com/J8_series/easy-car-ui/tree/10-CreatePipeline
关键代码
TestPipeline::Initialize()
本方法很长对照【Vulkan入门】06-Pipeline介绍看会清晰一点。
通过shaderStages为Pipeline指定Shader程序VIEWPORT决定了Vulkan渲染图片的大小SCISSOR决定了Vulkan渲染后对图片的裁剪。我们希望这两个值随窗口大小改变而改变因此我们用dynamicStates告诉Vulkan这两个值在渲染时动态指定。通过vertexInputInfo给Pipeline提供顶点信息但目前我们还不需要任何顶点信息。通过inputAssembly告诉Pipeline我们的顶点是想画什么例子中我们需要Pipeline画三角形通过rasterizer告诉Pipeline如何光栅化通过multisampling告诉Pipeline如何采样通过colorBlending告诉Pipeline如何叠加同一个像素的多个颜色通过pipelineLayoutInfo告诉Pipeline全局变量目前我们不需要任何全局变量
void TestPipeline::Initialize(const std::string vertexShaderFile,const std::string fragmentShaderFile,const VkDevice device,uint32_t width,uint32_t height,uint32_t memroyTypeIndex){m_vertexShaderFile vertexShaderFile;m_fragmentShaderFile fragmentShaderFile;m_device device;m_width width;m_height height;m_memroyTypeIndex memroyTypeIndex;CreateRenderPass();CreateFramebuffers();std::vectorchar vertShaderCode ReadShader(m_vertexShaderFile);std::vectorchar fragShaderCode ReadShader(m_fragmentShaderFile);VkShaderModule vertShaderModule CreateShaderModule(vertShaderCode);VkShaderModule fragShaderModule CreateShaderModule(fragShaderCode);//https://registry.khronos.org/vulkan/specs/latest/html/vkspec.html#VkPipelineShaderStageCreateInfoVkPipelineShaderStageCreateInfo vertShaderStageInfo{};vertShaderStageInfo.sType VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;vertShaderStageInfo.stage VK_SHADER_STAGE_VERTEX_BIT;vertShaderStageInfo.module vertShaderModule;vertShaderStageInfo.pName main;VkPipelineShaderStageCreateInfo fragShaderStageInfo{};fragShaderStageInfo.sType VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO;fragShaderStageInfo.stage VK_SHADER_STAGE_FRAGMENT_BIT;fragShaderStageInfo.module fragShaderModule;fragShaderStageInfo.pName main;VkPipelineShaderStageCreateInfo shaderStages[] {vertShaderStageInfo, fragShaderStageInfo};std::vectorVkDynamicState dynamicStates {VK_DYNAMIC_STATE_VIEWPORT,VK_DYNAMIC_STATE_SCISSOR};//https://registry.khronos.org/vulkan/specs/latest/html/vkspec.html#VkPipelineDynamicStateCreateInfoVkPipelineDynamicStateCreateInfo dynamicState{};dynamicState.sType VK_STRUCTURE_TYPE_PIPELINE_DYNAMIC_STATE_CREATE_INFO;dynamicState.dynamicStateCount static_castuint32_t(dynamicStates.size());dynamicState.pDynamicStates dynamicStates.data();//https://registry.khronos.org/vulkan/specs/latest/html/vkspec.html#VkPipelineVertexInputStateCreateInfoVkPipelineVertexInputStateCreateInfo vertexInputInfo{};vertexInputInfo.sType VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO;vertexInputInfo.vertexBindingDescriptionCount 0;vertexInputInfo.vertexAttributeDescriptionCount 0;//https://registry.khronos.org/vulkan/specs/latest/html/vkspec.html#VkPipelineInputAssemblyStateCreateInfoVkPipelineInputAssemblyStateCreateInfo inputAssembly{};inputAssembly.sType VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO;inputAssembly.topology VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;inputAssembly.primitiveRestartEnable VK_FALSE;//https://registry.khronos.org/vulkan/specs/latest/html/vkspec.html#VkPipelineViewportStateCreateInfoVkPipelineViewportStateCreateInfo viewportState{};viewportState.sType VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO;viewportState.viewportCount 1;viewportState.scissorCount 1;//https://registry.khronos.org/vulkan/specs/latest/html/vkspec.html#VkPipelineRasterizationStateCreateInfoVkPipelineRasterizationStateCreateInfo rasterizer{};rasterizer.sType VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO;rasterizer.depthClampEnable VK_FALSE;rasterizer.rasterizerDiscardEnable VK_FALSE;rasterizer.polygonMode VK_POLYGON_MODE_FILL;rasterizer.lineWidth 1.0f;rasterizer.cullMode VK_CULL_MODE_BACK_BIT;rasterizer.frontFace VK_FRONT_FACE_CLOCKWISE;rasterizer.depthBiasEnable VK_FALSE;//https://registry.khronos.org/vulkan/specs/latest/html/vkspec.html#VkPipelineMultisampleStateCreateInfoVkPipelineMultisampleStateCreateInfo multisampling{};multisampling.sType VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO;multisampling.sampleShadingEnable VK_FALSE;multisampling.rasterizationSamples VK_SAMPLE_COUNT_1_BIT;//https://registry.khronos.org/vulkan/specs/latest/html/vkspec.html#VkPipelineColorBlendAttachmentStateVkPipelineColorBlendAttachmentState colorBlendAttachment{};colorBlendAttachment.colorWriteMask VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT | VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT;colorBlendAttachment.blendEnable VK_FALSE;//https://registry.khronos.org/vulkan/specs/latest/html/vkspec.html#VkPipelineColorBlendStateCreateInfoVkPipelineColorBlendStateCreateInfo colorBlending{};colorBlending.sType VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO;colorBlending.logicOpEnable VK_FALSE;colorBlending.logicOp VK_LOGIC_OP_COPY;colorBlending.attachmentCount 1;colorBlending.pAttachments colorBlendAttachment;colorBlending.blendConstants[0] 0.0f;colorBlending.blendConstants[1] 0.0f;colorBlending.blendConstants[2] 0.0f;colorBlending.blendConstants[3] 0.0f;//https://registry.khronos.org/vulkan/specs/latest/html/vkspec.html#VkPipelineLayoutCreateInfoVkPipelineLayoutCreateInfo pipelineLayoutInfo{};pipelineLayoutInfo.sType VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;pipelineLayoutInfo.setLayoutCount 0;pipelineLayoutInfo.pushConstantRangeCount 0;if (vkCreatePipelineLayout(m_device, pipelineLayoutInfo, nullptr, m_pipelineLayout) ! VK_SUCCESS){throw std::runtime_error(To create pipeline layout is failed);}VkGraphicsPipelineCreateInfo pipelineInfo{};pipelineInfo.sType VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO;pipelineInfo.stageCount 2;pipelineInfo.pStages shaderStages;pipelineInfo.pVertexInputState vertexInputInfo;pipelineInfo.pInputAssemblyState inputAssembly;pipelineInfo.pViewportState viewportState;pipelineInfo.pRasterizationState rasterizer;pipelineInfo.pMultisampleState multisampling;pipelineInfo.pColorBlendState colorBlending;pipelineInfo.pDynamicState dynamicState;pipelineInfo.layout m_pipelineLayout;pipelineInfo.renderPass m_renderPass;pipelineInfo.subpass 0;pipelineInfo.basePipelineHandle VK_NULL_HANDLE;if (vkCreateGraphicsPipelines(m_device, VK_NULL_HANDLE, 1, pipelineInfo, nullptr, m_graphicsPipeline) ! VK_SUCCESS) {throw std::runtime_error(To create graphics pipeline is failed!);}vkDestroyShaderModule(m_device, fragShaderModule, nullptr);vkDestroyShaderModule(m_device, vertShaderModule, nullptr);}编译运行
没有出现错误就是最好的现象
