98 lines
4.6 KiB
C++
98 lines
4.6 KiB
C++
#pragma once
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#include <vulkan/vulkan.hpp>
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#include "../Device.hpp"
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#include "../../Scene/Shader.hpp"
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#include "../../Scene/Vertex.hpp"
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#include "../../Base/ICloseable.hpp"
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#include "../Resources/IShaderOwner.hpp"
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#include "IRecordable.hpp"
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namespace openVulkanoCpp
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{
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namespace Vulkan
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{
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vk::PrimitiveTopology ToVkTopology(Scene::Topology topology)
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{
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switch (topology) {
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case Scene::Topology::PointList: return vk::PrimitiveTopology::ePointList;
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case Scene::Topology::LineList: return vk::PrimitiveTopology::eLineList;
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case Scene::Topology::LineStripe: return vk::PrimitiveTopology::eLineStrip;
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case Scene::Topology::TriangleList: return vk::PrimitiveTopology::eTriangleList;
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case Scene::Topology::TriangleStripe: return vk::PrimitiveTopology::eTriangleStrip;
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default: throw std::runtime_error("Unknown topology!");
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}
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}
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struct VulkanShader : virtual public ICloseable, virtual public IRecordable
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{
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Scene::Shader* shader = nullptr;
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vk::Device device;
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vk::ShaderModule shaderModuleVertex, shaderModuleFragment;
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vk::Pipeline pipeline;
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IShaderOwner* owner;
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VulkanShader() = default;
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virtual ~VulkanShader() { if (shader) VulkanShader::Close(); }
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void Init(Context* context, Scene::Shader* shader, IShaderOwner* owner)
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{
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this->device = context->device->device;
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this->shader = shader;
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this->owner = owner;
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shaderModuleVertex = context->device->CreateShaderModule(shader->vertexShaderName + ".vert.spv");
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shaderModuleFragment = context->device->CreateShaderModule(shader->fragmentShaderName + ".frag.spv");
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std::vector<vk::PipelineShaderStageCreateInfo> shaderStageCreateInfos(2);
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shaderStageCreateInfos[0] = { {}, vk::ShaderStageFlagBits::eVertex, shaderModuleVertex, "main" };
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shaderStageCreateInfos[1] = { {}, vk::ShaderStageFlagBits::eFragment, shaderModuleFragment, "main" };
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auto vertexBindDesc = vk::VertexInputBindingDescription(0, sizeof(Vertex), vk::VertexInputRate::eVertex);
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std::vector<vk::VertexInputAttributeDescription> attributeDescriptions;
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attributeDescriptions.emplace_back(0, 0, vk::Format::eR32G32B32Sfloat, offsetof(Vertex, position));
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attributeDescriptions.emplace_back(1, 0, vk::Format::eR32G32B32Sfloat, offsetof(Vertex, normal));
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attributeDescriptions.emplace_back(2, 0, vk::Format::eR32G32B32Sfloat, offsetof(Vertex, tangent));
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attributeDescriptions.emplace_back(3, 0, vk::Format::eR32G32B32Sfloat, offsetof(Vertex, biTangent));
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attributeDescriptions.emplace_back(4, 0, vk::Format::eR32G32B32Sfloat, offsetof(Vertex, textureCoordinates));
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attributeDescriptions.emplace_back(5, 0, vk::Format::eR32G32B32A32Sfloat, offsetof(Vertex, color));
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auto viewport = context->swapChain.GetFullscreenViewport();
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auto scissor = context->swapChain.GetFullscreenScissor();
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vk::PipelineViewportStateCreateInfo viewportStateCreateInfo = { {}, 1, &viewport, 1, &scissor };
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vk::PipelineVertexInputStateCreateInfo pipelineVertexInputStateCreateInfo = { {}, 1, &vertexBindDesc,
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static_cast<uint32_t>(attributeDescriptions.size()), attributeDescriptions.data() };
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vk::PipelineInputAssemblyStateCreateInfo inputAssembly = { {}, ToVkTopology(shader->topology), 0 };
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vk::PipelineRasterizationStateCreateInfo rasterizer = {};
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rasterizer.cullMode = vk::CullModeFlagBits::eBack;
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vk::PipelineMultisampleStateCreateInfo msaa = {};
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vk::PipelineDepthStencilStateCreateInfo depth = { {}, 1, 1, vk::CompareOp::eGreater };
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vk::PipelineColorBlendAttachmentState colorBlendAttachment = {};
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colorBlendAttachment.colorWriteMask = vk::ColorComponentFlagBits::eA | vk::ColorComponentFlagBits::eB | vk::ColorComponentFlagBits::eG | vk::ColorComponentFlagBits::eR;
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vk::PipelineColorBlendStateCreateInfo colorInfo = {};
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colorInfo.attachmentCount = 1;
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colorInfo.pAttachments = &colorBlendAttachment;
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vk::GraphicsPipelineCreateInfo pipelineCreateInfo = { {}, static_cast<uint32_t>(shaderStageCreateInfos.size()), shaderStageCreateInfos.data(), &pipelineVertexInputStateCreateInfo, &inputAssembly,
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nullptr, &viewportStateCreateInfo, &rasterizer, &msaa, &depth, &colorInfo, nullptr, context->pipeline.pipelineLayout, context->swapChainRenderPass.renderPass };
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pipeline = this->device.createGraphicsPipeline({}, pipelineCreateInfo);
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}
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void Record(vk::CommandBuffer& cmdBuffer, uint32_t bufferId) override
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{
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cmdBuffer.bindPipeline(vk::PipelineBindPoint::eGraphics, pipeline);
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}
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void Close() override
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{
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owner->RemoveShader(this);
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shader = nullptr;
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device.destroyPipeline(pipeline);
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device.destroyShaderModule(shaderModuleVertex);
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device.destroyShaderModule(shaderModuleFragment);
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}
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};
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}
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}
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