95 lines
2.5 KiB
C++
95 lines
2.5 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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#pragma once
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#include "vulkan.h"
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#include "vmallocator.h"
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struct BufferData
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{
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BufferData(vk::DeviceSize size, const vk::BufferUsageFlags& usage,
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const vk::MemoryPropertyFlags& propertyFlags =
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vk::MemoryPropertyFlagBits::eHostVisible
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#ifndef __APPLE__
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// host coherent memory not supported on apple platforms
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| vk::MemoryPropertyFlagBits::eHostCoherent
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#endif
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);
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~BufferData()
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{
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buffer.reset();
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}
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void upload(u32 size, const void *data, u32 bufOffset = 0) const
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{
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verify((bool)(m_propertyFlags & vk::MemoryPropertyFlagBits::eHostVisible));
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verify(bufOffset + size <= bufferSize);
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void* dataPtr = (u8 *)allocation.MapMemory() + bufOffset;
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memcpy(dataPtr, data, size);
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allocation.UnmapMemory();
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}
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void upload(size_t count, const u32 *sizes, const void * const *data, u32 bufOffset = 0) const
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{
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verify((bool)(m_propertyFlags & vk::MemoryPropertyFlagBits::eHostVisible));
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u32 totalSize = 0;
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for (size_t i = 0; i < count; i++)
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totalSize += sizes[i];
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verify(bufOffset + totalSize <= bufferSize);
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void* dataPtr = (u8 *)allocation.MapMemory() + bufOffset;
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for (size_t i = 0; i < count; i++)
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{
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if (data[i] != nullptr)
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memcpy(dataPtr, data[i], sizes[i]);
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dataPtr = (u8 *)dataPtr + sizes[i];
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}
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allocation.UnmapMemory();
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}
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void download(u32 size, void *data, u32 bufOffset = 0) const
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{
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verify((bool)(m_propertyFlags & vk::MemoryPropertyFlagBits::eHostVisible));
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verify(bufOffset + size <= bufferSize);
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void* dataPtr = (u8 *)allocation.MapMemory() + bufOffset;
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memcpy(data, dataPtr, size);
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allocation.UnmapMemory();
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}
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void *MapMemory()
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{
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return allocation.MapMemory();
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}
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void UnmapMemory()
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{
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allocation.UnmapMemory();
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}
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vk::UniqueBuffer buffer;
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vk::DeviceSize bufferSize;
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Allocation allocation;
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private:
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vk::BufferUsageFlags m_usage;
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vk::MemoryPropertyFlags m_propertyFlags;
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};
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