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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/input_common/drivers/android.h
View file

@ -1,3 +1,6 @@
// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
@ -87,7 +90,7 @@ public:
Common::Input::ButtonNames GetUIName(const Common::ParamPackage& params) const override;
private:
std::unordered_map<PadIdentifier, jobject> input_devices;
ankerl::unordered_dense::map<PadIdentifier, jobject> input_devices;
/// Returns the correct identifier corresponding to the player index
PadIdentifier GetIdentifier(const std::string& guid, size_t port) const;

4
src/input_common/drivers/sdl_driver.cpp
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@ -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: 2018 Citra Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
@ -570,7 +570,7 @@ SDLDriver::~SDLDriver() {
std::vector<Common::ParamPackage> SDLDriver::GetInputDevices() const {
std::vector<Common::ParamPackage> devices;
std::unordered_map<int, std::shared_ptr<SDLJoystick>> joycon_pairs;
ankerl::unordered_dense::map<int, std::shared_ptr<SDLJoystick>> joycon_pairs;
for (const auto& [key, value] : joystick_map) {
for (const auto& joystick : value) {
if (!joystick->GetSDLJoystick()) {

7
src/input_common/drivers/sdl_driver.h
View file

@ -1,3 +1,6 @@
// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: 2018 Citra Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
@ -6,7 +9,7 @@
#include <atomic>
#include <mutex>
#include <thread>
#include <unordered_map>
#include <ankerl/unordered_dense.h>
#include <SDL.h>
@ -116,7 +119,7 @@ private:
Common::SPSCQueue<VibrationRequest> vibration_queue;
/// Map of GUID of a list of corresponding virtual Joysticks
std::unordered_map<Common::UUID, std::vector<std::shared_ptr<SDLJoystick>>> joystick_map;
ankerl::unordered_dense::map<Common::UUID, std::vector<std::shared_ptr<SDLJoystick>>> joystick_map;
std::mutex joystick_map_mutex;
bool start_thread = false;