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// Copyright 2018 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <set>
#include <boost/icl/interval_map.hpp>
#include <boost/range/iterator_range_core.hpp>
#include "common/common_types.h"
#include "core/core.h"
#include "video_core/rasterizer_interface.h"
#include "video_core/renderer_base.h"
template <class T>
class RasterizerCache : NonCopyable {
public:
/// Mark the specified region as being invalidated
void InvalidateRegion(VAddr addr, u64 size) {
if (size == 0)
return;
const ObjectInterval interval{addr, addr + size};
for (auto& pair : boost::make_iterator_range(object_cache.equal_range(interval))) {
for (auto& cached_object : pair.second) {
if (!cached_object)
continue;
remove_objects.emplace(cached_object);
}
}
for (auto& remove_object : remove_objects) {
Unregister(remove_object);
}
remove_objects.clear();
}
/// Invalidates everything in the cache
void InvalidateAll() {
while (object_cache.begin() != object_cache.end()) {
Unregister(*object_cache.begin()->second.begin());
}
}
protected:
/// Tries to get an object from the cache with the specified address
T TryGet(VAddr addr) const {
const ObjectInterval interval{addr};
for (auto& pair : boost::make_iterator_range(object_cache.equal_range(interval))) {
for (auto& cached_object : pair.second) {
if (cached_object->GetAddr() == addr) {
return cached_object;
}
}
}
return nullptr;
}
/// Register an object into the cache
void Register(const T& object) {
object_cache.add({GetInterval(object), ObjectSet{object}});
auto& rasterizer = Core::System::GetInstance().Renderer().Rasterizer();
rasterizer.UpdatePagesCachedCount(object->GetAddr(), object->GetSizeInBytes(), 1);
}
/// Unregisters an object from the cache
void Unregister(const T& object) {
auto& rasterizer = Core::System::GetInstance().Renderer().Rasterizer();
rasterizer.UpdatePagesCachedCount(object->GetAddr(), object->GetSizeInBytes(), -1);
object_cache.subtract({GetInterval(object), ObjectSet{object}});
}
private:
using ObjectSet = std::set<T>;
using ObjectCache = boost::icl::interval_map<VAddr, ObjectSet>;
using ObjectInterval = typename ObjectCache::interval_type;
static auto GetInterval(const T& object) {
return ObjectInterval::right_open(object->GetAddr(),
object->GetAddr() + object->GetSizeInBytes());
}
ObjectCache object_cache;
ObjectSet remove_objects;
};
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