mirror of
https://github.com/kmc-jp/n64-emu.git
synced 2025-04-02 10:21:43 -04:00
102 lines
No EOL
3 KiB
C++
102 lines
No EOL
3 KiB
C++
/* Copyright (c) 2017-2023 Hans-Kristian Arntzen
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
|
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
|
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
|
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "vulkan_headers.hpp"
|
|
#include "intrusive.hpp"
|
|
#include <vector>
|
|
#include <algorithm>
|
|
|
|
namespace Vulkan
|
|
{
|
|
class Device;
|
|
class Buffer;
|
|
|
|
struct BufferBlockAllocation
|
|
{
|
|
uint8_t *host;
|
|
VkDeviceSize offset;
|
|
VkDeviceSize padded_size;
|
|
};
|
|
|
|
struct BufferBlock
|
|
{
|
|
~BufferBlock();
|
|
Util::IntrusivePtr<Buffer> gpu;
|
|
Util::IntrusivePtr<Buffer> cpu;
|
|
VkDeviceSize offset = 0;
|
|
VkDeviceSize alignment = 0;
|
|
VkDeviceSize size = 0;
|
|
VkDeviceSize spill_size = 0;
|
|
uint8_t *mapped = nullptr;
|
|
|
|
BufferBlockAllocation allocate(VkDeviceSize allocate_size)
|
|
{
|
|
auto aligned_offset = (offset + alignment - 1) & ~(alignment - 1);
|
|
if (aligned_offset + allocate_size <= size)
|
|
{
|
|
auto *ret = mapped + aligned_offset;
|
|
offset = aligned_offset + allocate_size;
|
|
|
|
VkDeviceSize padded_size = std::max<VkDeviceSize>(allocate_size, spill_size);
|
|
padded_size = std::min<VkDeviceSize>(padded_size, size - aligned_offset);
|
|
|
|
return { ret, aligned_offset, padded_size };
|
|
}
|
|
else
|
|
return { nullptr, 0, 0 };
|
|
}
|
|
};
|
|
|
|
class BufferPool
|
|
{
|
|
public:
|
|
~BufferPool();
|
|
void init(Device *device, VkDeviceSize block_size, VkDeviceSize alignment, VkBufferUsageFlags usage, bool need_device_local);
|
|
void reset();
|
|
|
|
// Used for allocating UBOs, where we want to specify a fixed size for range,
|
|
// and we need to make sure we don't allocate beyond the block.
|
|
void set_spill_region_size(VkDeviceSize spill_size);
|
|
void set_max_retained_blocks(size_t max_blocks);
|
|
|
|
VkDeviceSize get_block_size() const
|
|
{
|
|
return block_size;
|
|
}
|
|
|
|
BufferBlock request_block(VkDeviceSize minimum_size);
|
|
void recycle_block(BufferBlock &block);
|
|
|
|
private:
|
|
Device *device = nullptr;
|
|
VkDeviceSize block_size = 0;
|
|
VkDeviceSize alignment = 0;
|
|
VkDeviceSize spill_size = 0;
|
|
VkBufferUsageFlags usage = 0;
|
|
size_t max_retained_blocks = 0;
|
|
std::vector<BufferBlock> blocks;
|
|
BufferBlock allocate_block(VkDeviceSize size);
|
|
bool need_device_local = false;
|
|
};
|
|
} |