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[*] change all std::unordered_map and std::unordered_set into ankerl::unordered_dense::map/set variants (#3442)

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mainly doing this to reduce memory footprint; we all know how nice ankerl::unordered_dense is

in theory 4x faster - in practice these maps arent that "hot" anyways so not likely to have much perf gained

i just want to reduce mem fragmentation to ease my porting process, plus it helps other platforms as well (ahem weak Mediatek devices) :)

Signed-off-by: lizzie <lizzie@eden-emu.dev>

Co-authored-by: Caio Oliveira <caiooliveirafarias0@gmail.com>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3442
Reviewed-by: DraVee <dravee@eden-emu.dev>
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Co-authored-by: lizzie <lizzie@eden-emu.dev>
Co-committed-by: lizzie <lizzie@eden-emu.dev>
This commit is contained in:
lizzie 2026-02-10 03:34:07 +01:00 • committed by crueter
parent 0f8b35c4cd
commit a8093c2a3c
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GPG key ID: 425ACD2D4830EBC6
87 changed files with 368 additions and 254 deletions
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5
src/video_core/host1x/codecs/decoder.h Executable file → Normal file
View file

@ -1,3 +1,6 @@
// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
@ -7,7 +10,7 @@
#include <mutex>
#include <optional>
#include <string_view>
#include <unordered_map>
#include <ankerl/unordered_dense.h>
#include <queue>
#include "common/common_types.h"

12
src/video_core/host1x/host1x.h
View file

@ -1,4 +1,4 @@
// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: 2021 yuzu Emulator Project
@ -6,8 +6,8 @@
#pragma once
#include <ankerl/unordered_dense.h>
#include <unordered_map>
#include <unordered_set>
#include <queue>
#include "common/common_types.h"
@ -134,15 +134,15 @@ private:
if (it == map->second.end()) {
return {};
}
// TODO: this "mapped" prevents us from fully embracing ankerl
return std::move(map->second.extract(it).mapped());
}
using FramePtr = std::shared_ptr<FFmpeg::Frame>;
std::mutex m_mutex{};
std::unordered_map<s32, std::deque<std::pair<u64, FramePtr>>> m_presentation_order;
std::unordered_map<s32, std::unordered_map<u64, FramePtr>> m_decode_order;
ankerl::unordered_dense::map<s32, std::deque<std::pair<u64, FramePtr>>> m_presentation_order;
ankerl::unordered_dense::map<s32, std::unordered_map<u64, FramePtr>> m_decode_order;
static constexpr size_t MAX_PRESENT_QUEUE = 100;
static constexpr size_t MAX_DECODE_MAP = 200;
@ -218,7 +218,7 @@ private:
Tegra::MemoryManager gmmu_manager;
std::unique_ptr<Common::FlatAllocator<u32, 0, 32>> allocator;
FrameQueue frame_queue;
std::unordered_map<s32, std::unique_ptr<CDmaPusher>> devices;
ankerl::unordered_dense::map<s32, std::unique_ptr<CDmaPusher>> devices;
#ifdef YUZU_LEGACY
std::once_flag nvdec_first_init;
std::once_flag vic_first_init;