110 lines
3.3 KiB
C++
110 lines
3.3 KiB
C++
/*
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Created on: Oct 8, 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_context.h"
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class CommandPool
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{
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public:
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void Init()
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{
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size_t size = VulkanContext::Instance()->GetSwapChainSize();
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if (commandPools.size() > size)
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{
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commandPools.resize(size);
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fences.resize(size);
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}
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else
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{
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while (commandPools.size() < size)
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{
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commandPools.push_back(VulkanContext::Instance()->GetDevice().createCommandPoolUnique(
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vk::CommandPoolCreateInfo(vk::CommandPoolCreateFlagBits::eTransient, VulkanContext::Instance()->GetGraphicsQueueFamilyIndex())));
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fences.push_back(VulkanContext::Instance()->GetDevice().createFenceUnique(vk::FenceCreateInfo(vk::FenceCreateFlagBits::eSignaled)));
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}
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}
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if (freeBuffers.size() != size)
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freeBuffers.resize(size);
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if (inFlightBuffers.size() != size)
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inFlightBuffers.resize(size);
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}
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void Term()
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{
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freeBuffers.clear();
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inFlightBuffers.clear();
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fences.clear();
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commandPools.clear();
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}
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void EndFrame()
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{
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std::vector<vk::CommandBuffer> commandBuffers = vk::uniqueToRaw(inFlightBuffers[index]);
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VulkanContext::Instance()->SubmitCommandBuffers(commandBuffers.size(), commandBuffers.data(), *fences[index]);
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}
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void BeginFrame()
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{
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index = (index + 1) % VulkanContext::Instance()->GetSwapChainSize();
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VulkanContext::Instance()->GetDevice().waitForFences(1, &fences[index].get(), true, UINT64_MAX);
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VulkanContext::Instance()->GetDevice().resetFences(1, &fences[index].get());
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std::vector<vk::UniqueCommandBuffer>& inFlight = inFlightBuffers[index];
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std::vector<vk::UniqueCommandBuffer>& freeBuf = freeBuffers[index];
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std::move(inFlight.begin(), inFlight.end(), std::back_inserter(freeBuf));
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inFlight.clear();
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VulkanContext::Instance()->GetDevice().resetCommandPool(*commandPools[index], vk::CommandPoolResetFlagBits::eReleaseResources);
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}
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vk::CommandBuffer Allocate()
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{
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if (freeBuffers[index].empty())
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{
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inFlightBuffers[index].emplace_back(std::move(
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VulkanContext::Instance()->GetDevice().allocateCommandBuffersUnique(vk::CommandBufferAllocateInfo(*commandPools[index], vk::CommandBufferLevel::ePrimary, 1))
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.front()));
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}
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else
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{
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inFlightBuffers[index].emplace_back(std::move(freeBuffers[index].back()));
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freeBuffers[index].pop_back();
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}
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return *inFlightBuffers[index].back();
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}
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vk::Fence GetCurrentFence()
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{
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return *fences[index];
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}
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int GetIndex() const
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{
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return index;
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}
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private:
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int index = 0;
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std::vector<std::vector<vk::UniqueCommandBuffer>> freeBuffers;
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std::vector<std::vector<vk::UniqueCommandBuffer>> inFlightBuffers;
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std::vector<vk::UniqueCommandPool> commandPools;
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std::vector<vk::UniqueFence> fences;
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};
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