65 lines
2.2 KiB
C++
65 lines
2.2 KiB
C++
// Copyright 2019 yuzu Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <mutex>
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#include <boost/icl/interval_map.hpp>
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#include <boost/range/iterator_range.hpp>
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#include "common/assert.h"
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#include "common/common_types.h"
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#include "core/memory.h"
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#include "video_core/rasterizer_accelerated.h"
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namespace VideoCore {
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namespace {
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template <typename Map, typename Interval>
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constexpr auto RangeFromInterval(Map& map, const Interval& interval) {
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return boost::make_iterator_range(map.equal_range(interval));
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}
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} // Anonymous namespace
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RasterizerAccelerated::RasterizerAccelerated(Memory::Memory& cpu_memory_)
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: cpu_memory{cpu_memory_} {}
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RasterizerAccelerated::~RasterizerAccelerated() = default;
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void RasterizerAccelerated::UpdatePagesCachedCount(VAddr addr, u64 size, int delta) {
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std::lock_guard lock{pages_mutex};
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const u64 page_start{addr >> Memory::PAGE_BITS};
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const u64 page_end{(addr + size + Memory::PAGE_SIZE - 1) >> Memory::PAGE_BITS};
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// Interval maps will erase segments if count reaches 0, so if delta is negative we have to
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// subtract after iterating
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const auto pages_interval = CachedPageMap::interval_type::right_open(page_start, page_end);
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if (delta > 0) {
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cached_pages.add({pages_interval, delta});
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}
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for (const auto& pair : RangeFromInterval(cached_pages, pages_interval)) {
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const auto interval = pair.first & pages_interval;
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const int count = pair.second;
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const VAddr interval_start_addr = boost::icl::first(interval) << Memory::PAGE_BITS;
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const VAddr interval_end_addr = boost::icl::last_next(interval) << Memory::PAGE_BITS;
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const u64 interval_size = interval_end_addr - interval_start_addr;
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if (delta > 0 && count == delta) {
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cpu_memory.RasterizerMarkRegionCached(interval_start_addr, interval_size, true);
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} else if (delta < 0 && count == -delta) {
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cpu_memory.RasterizerMarkRegionCached(interval_start_addr, interval_size, false);
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} else {
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ASSERT(count >= 0);
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}
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}
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if (delta < 0) {
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cached_pages.add({pages_interval, delta});
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}
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}
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} // namespace VideoCore
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