126 lines
3.5 KiB
C++
126 lines
3.5 KiB
C++
/*
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Created on: Nov 7, 2019
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Copyright 2019 flyinghead
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This file is part of Flycast.
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Flycast is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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Flycast is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Flycast. If not, see <https://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "vulkan.h"
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#include "buffer.h"
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#include "shaders.h"
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struct QuadVertex
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{
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f32 pos[3];
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f32 uv[2];
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};
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vk::PipelineVertexInputStateCreateInfo GetQuadInputStateCreateInfo(bool uv);
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class QuadBuffer
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{
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public:
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QuadBuffer()
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{
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buffer = std::unique_ptr<BufferData>(new BufferData(sizeof(QuadVertex) * 4, vk::BufferUsageFlagBits::eVertexBuffer));
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}
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void Bind(vk::CommandBuffer commandBuffer)
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{
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const vk::DeviceSize zero = 0;
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commandBuffer.bindVertexBuffers(0, 1, &buffer->buffer.get(), &zero);
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}
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void Draw(vk::CommandBuffer commandBuffer)
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{
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commandBuffer.draw(4, 1, 0, 0);
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}
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void Update(QuadVertex vertices[] = nullptr)
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{
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if (vertices == nullptr)
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{
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static QuadVertex defaultVtx[] = {
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{ { -1.f, -1.f, 0.f }, { 0.f, 0.f } },
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{ { 1.f, -1.f, 0.f }, { 1.f, 0.f } },
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{ { -1.f, 1.f, 0.f }, { 0.f, 1.f } },
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{ { 1.f, 1.f, 0.f }, { 1.f, 1.f } },
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};
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vertices = defaultVtx;
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};
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buffer->upload(sizeof(QuadVertex) * 4, vertices);
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}
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private:
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std::unique_ptr<BufferData> buffer;
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};
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class QuadPipeline
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{
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public:
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QuadPipeline(bool ignoreTexAlpha, bool rotate = false)
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: rotate(rotate), ignoreTexAlpha(ignoreTexAlpha) {}
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void Init(ShaderManager *shaderManager, vk::RenderPass renderPass);
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void Init(const QuadPipeline& other) { Init(other.shaderManager, other.renderPass); }
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void Term() {
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pipeline.reset();
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linearSampler.reset();
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nearestSampler.reset();
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pipelineLayout.reset();
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descSetLayout.reset();
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}
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void BindPipeline(vk::CommandBuffer commandBuffer) { commandBuffer.bindPipeline(vk::PipelineBindPoint::eGraphics, GetPipeline()); }
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vk::DescriptorSetLayout GetDescSetLayout() const { return *descSetLayout; }
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vk::PipelineLayout GetPipelineLayout() const { return *pipelineLayout; }
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vk::Sampler GetLinearSampler() const { return *linearSampler; }
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vk::Sampler GetNearestSampler() const { return *nearestSampler; }
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private:
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vk::Pipeline GetPipeline()
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{
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if (!pipeline)
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CreatePipeline();
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return *pipeline;
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}
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void CreatePipeline();
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vk::RenderPass renderPass;
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vk::UniquePipeline pipeline;
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vk::UniqueSampler linearSampler;
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vk::UniqueSampler nearestSampler;
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vk::UniquePipelineLayout pipelineLayout;
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vk::UniqueDescriptorSetLayout descSetLayout;
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ShaderManager *shaderManager = nullptr;
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bool rotate;
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bool ignoreTexAlpha;
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};
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class QuadDrawer
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{
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public:
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QuadDrawer() = default;
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QuadDrawer(QuadDrawer &&) = default;
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QuadDrawer(const QuadDrawer &) = delete;
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QuadDrawer& operator=(QuadDrawer &&) = default;
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QuadDrawer& operator=(const QuadDrawer &) = delete;
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void Init(QuadPipeline *pipeline);
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void Draw(vk::CommandBuffer commandBuffer, vk::ImageView imageView, QuadVertex vertices[] = nullptr, bool nearestFilter = false, const float *color = nullptr);
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private:
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QuadPipeline *pipeline = nullptr;
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std::unique_ptr<QuadBuffer> buffer;
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std::vector<vk::UniqueDescriptorSet> descriptorSets;
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};
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