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Support for SDL Joysticks

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This enables use of non-controller peripherals,
such as DirectInput steering wheels or flight sticks
This commit is contained in:
Silent
2020-11-15 14:56:52 +01:00
parent 99ec667b20
commit 2880b71b48
14 changed files with 570 additions and 73 deletions
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21
src/frontend-common/controller_interface.h
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@ -6,6 +6,7 @@
#include <map>
#include <mutex>
#include <optional>
#include <variant>
class HostInterface;
class Controller;
@ -31,6 +32,13 @@ public:
MAX_NUM_BUTTONS = 15
};
enum AxisSide
{
Full,
Positive,
Negative
};
using AxisCallback = CommonHostInterface::InputAxisHandler;
using ButtonCallback = CommonHostInterface::InputButtonHandler;
@ -50,10 +58,12 @@ public:
virtual void ClearBindings() = 0;
// Binding to events. If a binding for this axis/button already exists, returns false.
virtual bool BindControllerAxis(int controller_index, int axis_number, AxisCallback callback) = 0;
virtual bool BindControllerAxis(int controller_index, int axis_number, AxisSide axis_side, AxisCallback callback) = 0;
virtual bool BindControllerButton(int controller_index, int button_number, ButtonCallback callback) = 0;
virtual bool BindControllerAxisToButton(int controller_index, int axis_number, bool direction,
ButtonCallback callback) = 0;
virtual bool BindControllerHatToButton(int controller_index, int hat_number, std::string_view hat_position,
ButtonCallback callback) = 0;
virtual bool BindControllerButtonToAxis(int controller_index, int button_number, AxisCallback callback) = 0;
virtual void PollEvents() = 0;
@ -71,7 +81,8 @@ public:
enum class Type
{
Axis,
Button
Button,
Hat // Only for joysticks
};
enum class CallbackResult
@ -85,13 +96,15 @@ public:
Type type;
int controller_index;
int button_or_axis_number;
float value; // 0/1 for buttons, -1..1 for axises
std::variant<float, std::string_view> value; // 0/1 for buttons, -1..1 for axes, hat direction name for hats
bool track_history; // Track axis movement to spot inversion/half axes
};
void SetHook(Hook::Callback callback);
void ClearHook();
protected:
bool DoEventHook(Hook::Type type, int controller_index, int button_or_axis_number, float value);
bool DoEventHook(Hook::Type type, int controller_index, int button_or_axis_number,
std::variant<float, std::string_view> value, bool track_history = false);
void OnControllerConnected(int host_id);
void OnControllerDisconnected(int host_id);