Vulkan-Hpp/samples/14_InitPipeline/14_InitPipeline.cpp
asuessenbach 0b8e4cb938 Introduce helper function ResultValue<UniqueHandle<Type, Dispatch>>::asTuple()
Allows coding like this:

    vk::Result         result;
    vk::UniquePipeline pipeline;
    std::tie( result, pipeline ) =
      device->createGraphicsPipelineUnique( nullptr, graphicsPipelineCreateInfo ).asTuple();
2020-09-16 09:36:37 +02:00

196 lines
9.1 KiB
C++

// Copyright(c) 2019, NVIDIA CORPORATION. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// VulkanHpp Samples : 14_InitPipeline
// Initialize graphics pipeline
#include "../utils/geometries.hpp"
#include "../utils/math.hpp"
#include "../utils/shaders.hpp"
#include "../utils/utils.hpp"
#include "SPIRV/GlslangToSpv.h"
#include "vulkan/vulkan.hpp"
#include <iostream>
static char const * AppName = "14_InitPipeline";
static char const * EngineName = "Vulkan.hpp";
int main( int /*argc*/, char ** /*argv*/ )
{
try
{
vk::UniqueInstance instance = vk::su::createInstance( AppName, EngineName, {}, vk::su::getInstanceExtensions() );
#if !defined( NDEBUG )
vk::UniqueDebugUtilsMessengerEXT debugUtilsMessenger = vk::su::createDebugUtilsMessenger( instance );
#endif
vk::PhysicalDevice physicalDevice = instance->enumeratePhysicalDevices().front();
vk::su::SurfaceData surfaceData( instance, AppName, vk::Extent2D( 500, 500 ) );
std::pair<uint32_t, uint32_t> graphicsAndPresentQueueFamilyIndex =
vk::su::findGraphicsAndPresentQueueFamilyIndex( physicalDevice, *surfaceData.surface );
vk::UniqueDevice device =
vk::su::createDevice( physicalDevice, graphicsAndPresentQueueFamilyIndex.first, vk::su::getDeviceExtensions() );
vk::UniqueRenderPass renderPass = vk::su::createRenderPass(
device,
vk::su::pickSurfaceFormat( physicalDevice.getSurfaceFormatsKHR( surfaceData.surface.get() ) ).format,
vk::Format::eD16Unorm );
vk::UniqueDescriptorSetLayout descriptorSetLayout = vk::su::createDescriptorSetLayout(
device, { { vk::DescriptorType::eUniformBuffer, 1, vk::ShaderStageFlagBits::eVertex } } );
vk::UniquePipelineLayout pipelineLayout = device->createPipelineLayoutUnique(
vk::PipelineLayoutCreateInfo( vk::PipelineLayoutCreateFlags(), *descriptorSetLayout ) );
glslang::InitializeProcess();
vk::UniqueShaderModule vertexShaderModule =
vk::su::createShaderModule( device, vk::ShaderStageFlagBits::eVertex, vertexShaderText_PC_C );
vk::UniqueShaderModule fragmentShaderModule =
vk::su::createShaderModule( device, vk::ShaderStageFlagBits::eFragment, fragmentShaderText_C_C );
glslang::FinalizeProcess();
/* VULKAN_KEY_START */
std::array<vk::PipelineShaderStageCreateInfo, 2> pipelineShaderStageCreateInfos = {
vk::PipelineShaderStageCreateInfo(
vk::PipelineShaderStageCreateFlags(), vk::ShaderStageFlagBits::eVertex, vertexShaderModule.get(), "main" ),
vk::PipelineShaderStageCreateInfo(
vk::PipelineShaderStageCreateFlags(), vk::ShaderStageFlagBits::eFragment, fragmentShaderModule.get(), "main" )
};
vk::VertexInputBindingDescription vertexInputBindingDescription( 0, sizeof( coloredCubeData[0] ) );
std::array<vk::VertexInputAttributeDescription, 2> vertexInputAttributeDescriptions = {
vk::VertexInputAttributeDescription( 0, 0, vk::Format::eR32G32B32A32Sfloat, 0 ),
vk::VertexInputAttributeDescription( 1, 0, vk::Format::eR32G32B32A32Sfloat, 16 )
};
vk::PipelineVertexInputStateCreateInfo pipelineVertexInputStateCreateInfo(
vk::PipelineVertexInputStateCreateFlags(), // flags
vertexInputBindingDescription, // vertexBindingDescriptions
vertexInputAttributeDescriptions // vertexAttributeDescriptions
);
vk::PipelineInputAssemblyStateCreateInfo pipelineInputAssemblyStateCreateInfo(
vk::PipelineInputAssemblyStateCreateFlags(), vk::PrimitiveTopology::eTriangleList );
vk::PipelineViewportStateCreateInfo pipelineViewportStateCreateInfo(
vk::PipelineViewportStateCreateFlags(), 1, nullptr, 1, nullptr );
vk::PipelineRasterizationStateCreateInfo pipelineRasterizationStateCreateInfo(
vk::PipelineRasterizationStateCreateFlags(), // flags
false, // depthClampEnable
false, // rasterizerDiscardEnable
vk::PolygonMode::eFill, // polygonMode
vk::CullModeFlagBits::eBack, // cullMode
vk::FrontFace::eClockwise, // frontFace
false, // depthBiasEnable
0.0f, // depthBiasConstantFactor
0.0f, // depthBiasClamp
0.0f, // depthBiasSlopeFactor
1.0f // lineWidth
);
vk::PipelineMultisampleStateCreateInfo pipelineMultisampleStateCreateInfo(
vk::PipelineMultisampleStateCreateFlags(), // flags
vk::SampleCountFlagBits::e1 // rasterizationSamples
// other values can be default
);
vk::StencilOpState stencilOpState(
vk::StencilOp::eKeep, vk::StencilOp::eKeep, vk::StencilOp::eKeep, vk::CompareOp::eAlways );
vk::PipelineDepthStencilStateCreateInfo pipelineDepthStencilStateCreateInfo(
vk::PipelineDepthStencilStateCreateFlags(), // flags
true, // depthTestEnable
true, // depthWriteEnable
vk::CompareOp::eLessOrEqual, // depthCompareOp
false, // depthBoundTestEnable
false, // stencilTestEnable
stencilOpState, // front
stencilOpState // back
);
vk::ColorComponentFlags colorComponentFlags( vk::ColorComponentFlagBits::eR | vk::ColorComponentFlagBits::eG |
vk::ColorComponentFlagBits::eB | vk::ColorComponentFlagBits::eA );
vk::PipelineColorBlendAttachmentState pipelineColorBlendAttachmentState(
false, // blendEnable
vk::BlendFactor::eZero, // srcColorBlendFactor
vk::BlendFactor::eZero, // dstColorBlendFactor
vk::BlendOp::eAdd, // colorBlendOp
vk::BlendFactor::eZero, // srcAlphaBlendFactor
vk::BlendFactor::eZero, // dstAlphaBlendFactor
vk::BlendOp::eAdd, // alphaBlendOp
colorComponentFlags // colorWriteMask
);
vk::PipelineColorBlendStateCreateInfo pipelineColorBlendStateCreateInfo(
vk::PipelineColorBlendStateCreateFlags(), // flags
false, // logicOpEnable
vk::LogicOp::eNoOp, // logicOp
pipelineColorBlendAttachmentState, // attachments
{ { 1.0f, 1.0f, 1.0f, 1.0f } } // blendConstants
);
std::array<vk::DynamicState, 2> dynamicStates = { vk::DynamicState::eViewport, vk::DynamicState::eScissor };
vk::PipelineDynamicStateCreateInfo pipelineDynamicStateCreateInfo( vk::PipelineDynamicStateCreateFlags(),
dynamicStates );
vk::GraphicsPipelineCreateInfo graphicsPipelineCreateInfo(
vk::PipelineCreateFlags(), // flags
pipelineShaderStageCreateInfos, // stages
&pipelineVertexInputStateCreateInfo, // pVertexInputState
&pipelineInputAssemblyStateCreateInfo, // pInputAssemblyState
nullptr, // pTessellationState
&pipelineViewportStateCreateInfo, // pViewportState
&pipelineRasterizationStateCreateInfo, // pRasterizationState
&pipelineMultisampleStateCreateInfo, // pMultisampleState
&pipelineDepthStencilStateCreateInfo, // pDepthStencilState
&pipelineColorBlendStateCreateInfo, // pColorBlendState
&pipelineDynamicStateCreateInfo, // pDynamicState
pipelineLayout.get(), // layout
renderPass.get() // renderPass
);
vk::Result result;
vk::UniquePipeline pipeline;
std::tie( result, pipeline ) =
device->createGraphicsPipelineUnique( nullptr, graphicsPipelineCreateInfo ).asTuple();
switch ( result )
{
case vk::Result::eSuccess: break;
case vk::Result::ePipelineCompileRequiredEXT:
// something meaningfull here
break;
default: assert( false ); // should never happen
}
/* VULKAN_KEY_END */
}
catch ( vk::SystemError & err )
{
std::cout << "vk::SystemError: " << err.what() << std::endl;
exit( -1 );
}
catch ( std::exception & err )
{
std::cout << "std::exception: " << err.what() << std::endl;
exit( -1 );
}
catch ( ... )
{
std::cout << "unknown error\n";
exit( -1 );
}
return 0;
}