61 lines
2.2 KiB
C++
61 lines
2.2 KiB
C++
/*
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* Created on: Oct 3, 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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#include "buffer.h"
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#include "utils.h"
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#include "vulkan_context.h"
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BufferData::BufferData(vk::DeviceSize size, vk::BufferUsageFlags usage, vk::MemoryPropertyFlags propertyFlags)
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: bufferSize(size), m_usage(usage)
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{
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VulkanContext *context = VulkanContext::Instance();
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buffer = context->GetDevice().createBufferUnique(vk::BufferCreateInfo(vk::BufferCreateFlags(), size, usage));
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VmaAllocationCreateInfo allocInfo {};
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if (propertyFlags & vk::MemoryPropertyFlagBits::eDeviceLocal)
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{
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allocInfo.requiredFlags = VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
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}
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else
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{
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// FIXME VMA_ALLOCATION_CREATE_MAPPED_BIT ?
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#ifdef __APPLE__
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// cpu memory management is fucked up with moltenvk
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allocInfo.flags |= VMA_ALLOCATION_CREATE_DEDICATED_MEMORY_BIT;
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// host coherent memory not supported on apple platforms
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propertyFlags &= ~vk::MemoryPropertyFlagBits::eHostCoherent;
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#endif
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if (propertyFlags & vk::MemoryPropertyFlagBits::eHostVisible)
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{
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allocInfo.requiredFlags = VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
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if (propertyFlags & vk::MemoryPropertyFlagBits::eHostCached)
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allocInfo.preferredFlags |= VK_MEMORY_PROPERTY_HOST_CACHED_BIT;
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if (propertyFlags & vk::MemoryPropertyFlagBits::eHostCoherent)
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allocInfo.preferredFlags |= VK_MEMORY_PROPERTY_HOST_COHERENT_BIT;
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}
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}
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allocation = context->GetAllocator().AllocateForBuffer(*buffer, allocInfo);
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}
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BufferPacker::BufferPacker()
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{
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uniformAlignment = VulkanContext::Instance()->GetUniformBufferAlignment();
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storageAlignment = VulkanContext::Instance()->GetStorageBufferAlignment();
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}
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