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[common] Switch to boost::unordered_flat containers (#4326)

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Replaces all instances of ankerl's unordered map/set with boost's
`unordered_flat_*` classes. This uses std::hash since boost::hash is
actually a lot slower.

Also adds an abstraction layer in `Common` so future changes are quicker
and easier.

Other implementation details:
- ankerl provided hash specializations for tuple and pair, so those were
  ported here
- std::erase_if doesn't work on boost, so just used the ADL'd erase_if

This should be about equal or superior performance as unordered_dense for everything except iteration.

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

- [x] I have read and followed the [Contribution Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/CONTRIBUTING.md#code-contributions).
- [x] I have read and followed the [AI Policy](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/AI.md)
- [x] I have read and followed the [Coding Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/Coding.md) to the best of my ability.

-------------------

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4326
Reviewed-by: Lizzie and Samuel <lizzie@eden-emu.dev>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
This commit is contained in:
crueter
2026-08-31 02:58:09 +02:00
parent 106a61c943
commit 7fda6dde73
118 changed files with 348 additions and 340 deletions
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src/input_common/main.h
+4 -4
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@@ -8,7 +8,7 @@
#include <memory>
#include <string>
#include <ankerl/unordered_dense.h>
#include "common/container/unordered_map.h"
#include <vector>
namespace Common {
@@ -56,9 +56,9 @@ enum class InputType { None, Button, Stick, Motion, Touch };
* Given a ParamPackage for a Device returned from `GetInputDevices`, attempt to get the default
* mapping for the device.
*/
using AnalogMapping = ankerl::unordered_dense::map<Settings::NativeAnalog::Values, Common::ParamPackage>;
using ButtonMapping = ankerl::unordered_dense::map<Settings::NativeButton::Values, Common::ParamPackage>;
using MotionMapping = ankerl::unordered_dense::map<Settings::NativeMotion::Values, Common::ParamPackage>;
using AnalogMapping = ::Common::unordered_map<Settings::NativeAnalog::Values, Common::ParamPackage>;
using ButtonMapping = ::Common::unordered_map<Settings::NativeButton::Values, Common::ParamPackage>;
using MotionMapping = ::Common::unordered_map<Settings::NativeMotion::Values, Common::ParamPackage>;
class InputSubsystem {
public: