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// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <utility>
#include <vector>
#include "common/common_types.h"
namespace VideoCommon {
class InvalidationAccumulator {
public:
InvalidationAccumulator() = default;
~InvalidationAccumulator() = default;
void Add(GPUVAddr address, size_t size) {
const auto reset_values = [&]() {
if (has_collected) {
buffer.emplace_back(start_address, accumulated_size);
}
start_address = address;
accumulated_size = size;
last_collection = start_address + size;
};
if (address >= start_address && address + size <= last_collection) [[likely]] {
return;
}
size = ((address + size + atomicity_size_mask) & atomicity_mask) - address;
address = address & atomicity_mask;
if (!has_collected) [[unlikely]] {
reset_values();
has_collected = true;
return;
}
if (address != last_collection) [[unlikely]] {
reset_values();
return;
}
accumulated_size += size;
last_collection += size;
}
void Clear() {
buffer.clear();
start_address = 0;
last_collection = 0;
has_collected = false;
}
bool AnyAccumulated() const {
return has_collected;
}
template <typename Func>
void Callback(Func&& func) {
if (!has_collected) {
return;
}
buffer.emplace_back(start_address, accumulated_size);
for (auto& [address, size] : buffer) {
func(address, size);
}
}
private:
static constexpr size_t atomicity_bits = 5;
static constexpr size_t atomicity_size = 1ULL << atomicity_bits;
static constexpr size_t atomicity_size_mask = atomicity_size - 1;
static constexpr size_t atomicity_mask = ~atomicity_size_mask;
GPUVAddr start_address{};
GPUVAddr last_collection{};
size_t accumulated_size{};
bool has_collected{};
std::vector<std::pair<VAddr, size_t>> buffer;
};
} // namespace VideoCommon
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