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early-access version 1498
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parent
1b9c49e3b5
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yuzu emulator early access
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yuzu emulator early access
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=============
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=============
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This is the source code for early-access 1496.
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This is the source code for early-access 1498.
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## Legal Notice
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## Legal Notice
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@ -2,63 +2,42 @@
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// Licensed under GPLv2 or any later version
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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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// 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/assert.h"
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#include "common/common_types.h"
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#include "common/common_types.h"
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#include "common/div_ceil.h"
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#include "core/memory.h"
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#include "core/memory.h"
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#include "video_core/rasterizer_accelerated.h"
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#include "video_core/rasterizer_accelerated.h"
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namespace VideoCore {
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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(Core::Memory::Memory& cpu_memory_)
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RasterizerAccelerated::RasterizerAccelerated(Core::Memory::Memory& cpu_memory_)
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: cpu_memory{cpu_memory_} {}
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: cpu_memory{cpu_memory_} {}
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RasterizerAccelerated::~RasterizerAccelerated() = default;
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RasterizerAccelerated::~RasterizerAccelerated() = default;
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void RasterizerAccelerated::UpdatePagesCachedCount(VAddr addr, u64 size, int delta) {
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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 auto page_end = Common::DivCeil(addr + size, Core::Memory::PAGE_SIZE);
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const u64 page_start{addr >> Core::Memory::PAGE_BITS};
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for (auto page = addr >> Core::Memory::PAGE_BITS; page != page_end; ++page) {
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const u64 page_end{(addr + size + Core::Memory::PAGE_SIZE - 1) >> Core::Memory::PAGE_BITS};
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auto& count = cached_pages.at(page >> 3).Count(page);
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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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if (delta > 0) {
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cached_pages.add({pages_interval, delta});
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ASSERT_MSG(count < UINT8_MAX, "Count may overflow!");
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}
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} else if (delta < 0) {
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ASSERT_MSG(count > 0, "Count may underflow!");
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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) << Core::Memory::PAGE_BITS;
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const VAddr interval_end_addr = boost::icl::last_next(interval) << Core::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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} else {
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ASSERT(count >= 0);
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ASSERT_MSG(true, "Delta must be non-zero!");
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}
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}
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}
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if (delta < 0) {
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count += static_cast<s8>(delta);
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cached_pages.add({pages_interval, delta});
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// Assume delta is either -1 or 1
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if (count == 0) {
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cpu_memory.RasterizerMarkRegionCached(page << Core::Memory::PAGE_BITS,
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Core::Memory::PAGE_SIZE, false);
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} else if (count == 1 && delta > 0) {
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cpu_memory.RasterizerMarkRegionCached(page << Core::Memory::PAGE_BITS,
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Core::Memory::PAGE_SIZE, true);
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}
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}
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}
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}
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}
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@ -4,9 +4,8 @@
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#pragma once
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#pragma once
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#include <mutex>
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#include <array>
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#include <atomic>
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#include <boost/icl/interval_map.hpp>
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#include "common/common_types.h"
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#include "common/common_types.h"
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#include "video_core/rasterizer_interface.h"
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#include "video_core/rasterizer_interface.h"
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@ -26,10 +25,24 @@ public:
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void UpdatePagesCachedCount(VAddr addr, u64 size, int delta) override;
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void UpdatePagesCachedCount(VAddr addr, u64 size, int delta) override;
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private:
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private:
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using CachedPageMap = boost::icl::interval_map<u64, int>;
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class CacheEntry final {
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CachedPageMap cached_pages;
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public:
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std::mutex pages_mutex;
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CacheEntry() = default;
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std::atomic_uint8_t& Count(std::size_t page) {
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return values[page & 7];
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}
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const std::atomic_uint8_t& Count(std::size_t page) const {
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return values[page & 7];
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}
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private:
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std::array<std::atomic_uint8_t, 8> values{};
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};
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static_assert(sizeof(CacheEntry) == 8, "CacheEntry should be 8 bytes!");
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std::array<CacheEntry, 0x800000> cached_pages;
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Core::Memory::Memory& cpu_memory;
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Core::Memory::Memory& cpu_memory;
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};
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};
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