Add constant for input detect threshold. Possible fix for issue on linux with binding triggers. Change unique_mapping to std::set

src/input_core/devices/keyboard.cpp

@@ -52,7 +52,7 @@ void Keyboard::Clear() {
 Settings::InputDeviceMapping Keyboard::GetInput() {
     auto result = ProcessInput();
     for (const auto& entry : result) {
-        if (entry.second > 0.5)
+        if (entry.second > 0.0)
             return entry.first;
     }
     return Settings::InputDeviceMapping("");

src/input_core/devices/sdl_gamepad.cpp

@@ -60,7 +60,7 @@ std::map<Settings::InputDeviceMapping, float> SDLGamepad::ProcessInput() {
             fmaxf(-1, static_cast<float>(SDL_GameControllerGetAxis(gamepad, axis) / 32767.0));
         input_device_mapping.key = static_cast<int>(
             gamepadinput_to_sdlname_mapping[SDL_GameControllerGetStringForAxis(axis)]);
-        if (strength < 0) {
+        if (strength < 0 && i < 4) {
             button_status.emplace(input_device_mapping, 0);
             input_device_mapping.key += 1; // minus axis value is always one greater
             button_status.emplace(input_device_mapping, abs(strength));
@@ -114,9 +114,9 @@ Settings::InputDeviceMapping SDLGamepad::GetInput() {
         return Settings::InputDeviceMapping("");
 
     auto results = ProcessInput();
-    for (const auto& input : results) {
-        if (input.second > 0.5)
-            return input.first;
+    for (const auto& entry : results) {
+        if (entry.second > input_detect_threshold)
+            return entry.first;
     }
     return Settings::InputDeviceMapping("");
 }

src/input_core/devices/sdl_gamepad.h

@@ -82,6 +82,7 @@ private:
         keys_pressed; ///< Map of keys that were pressed on previous iteration
     _SDL_GameController* gamepad = nullptr;
     int number; ///< Index of gamepad connection
+    float input_detect_threshold = 0.8;
 
     static void LoadGameControllerDB();
 };

src/input_core/input_core.cpp

@@ -149,24 +149,23 @@ void InputCore::SetTouchState(std::tuple<u16, u16, bool> value) {
     std::tie(touch_x, touch_y, touch_pressed) = value;
 }
 
-bool InputCore::CheckIfMappingExists(
-    const std::vector<Settings::InputDeviceMapping>& unique_mapping,
-    Settings::InputDeviceMapping mapping_to_check) {
+bool InputCore::CheckIfMappingExists(const std::set<Settings::InputDeviceMapping>& unique_mapping,
+                                     Settings::InputDeviceMapping mapping_to_check) {
     return std::any_of(
         unique_mapping.begin(), unique_mapping.end(),
         [mapping_to_check](const auto& mapping) { return mapping == mapping_to_check; });
 }
 
-std::vector<Settings::InputDeviceMapping> InputCore::GatherUniqueMappings() {
-    std::vector<Settings::InputDeviceMapping> unique_mappings;
+std::set<Settings::InputDeviceMapping> InputCore::GatherUniqueMappings() {
+    std::set<Settings::InputDeviceMapping> unique_mappings;
 
     for (const auto& mapping : Settings::values.input_mappings) {
         if (!CheckIfMappingExists(unique_mappings, mapping)) {
-            unique_mappings.push_back(mapping);
+            unique_mappings.insert(mapping);
         }
     }
     if (!CheckIfMappingExists(unique_mappings, Settings::values.pad_circle_modifier)) {
-        unique_mappings.push_back(Settings::values.pad_circle_modifier);
+        unique_mappings.insert(Settings::values.pad_circle_modifier);
     }
     return unique_mappings;
 }

src/input_core/input_core.h

@@ -7,6 +7,7 @@
 #include <functional>
 #include <memory>
 #include <mutex>
+#include <set>
 #include <tuple>
 
 #include "core/hle/service/hid/hid.h"
@@ -106,10 +107,10 @@ private:
     /**
      * Helper methodto check if device was already initialized
      */
-    static bool CheckIfMappingExists(const std::vector<Settings::InputDeviceMapping>& uniqueMapping,
+    static bool CheckIfMappingExists(const std::set<Settings::InputDeviceMapping>& uniqueMapping,
                                      Settings::InputDeviceMapping mappingToCheck);
 
-    static std::vector<Settings::InputDeviceMapping>
+    static std::set<Settings::InputDeviceMapping>
     GatherUniqueMappings(); /// Get unique input mappings from settings
 
     static void BuildKeyMapping(); /// Builds map of input keys to 3ds buttons for unique device