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input_common/sdl: Fix joystick range

This commit is contained in:
german77 2021-10-07 20:35:30 -05:00
parent f84328934f
commit 8212a864ca
1 changed files with 4 additions and 3 deletions
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7
src/input_common/sdl/sdl_impl.cpp
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@ -170,7 +170,8 @@ public:
float GetAxis(int axis, float range, float offset) const { float GetAxis(int axis, float range, float offset) const {
std::lock_guard lock{mutex}; std::lock_guard lock{mutex};
const float value = static_cast<float>(state.axes.at(axis)) / 32767.0f; const float value = static_cast<float>(state.axes.at(axis)) / 32767.0f;
return (value + offset) / range; const float offset_scale = (value + offset) > 0.0f ? 1.0f + offset : 1.0f - offset;
return (value + offset) / range / offset_scale;
} }
bool RumblePlay(u16 amp_low, u16 amp_high) { bool RumblePlay(u16 amp_low, u16 amp_high) {
@ -789,8 +790,8 @@ public:
const std::string invert_y_value = params.Get("invert_y", "+"); const std::string invert_y_value = params.Get("invert_y", "+");
const bool invert_x = invert_x_value == "-"; const bool invert_x = invert_x_value == "-";
const bool invert_y = invert_y_value == "-"; const bool invert_y = invert_y_value == "-";
const float offset_x = params.Get("offset_x", 0.0f); const float offset_x = std::clamp(params.Get("offset_x", 0.0f), -0.99f, 0.99f);
const float offset_y = params.Get("offset_y", 0.0f); const float offset_y = std::clamp(params.Get("offset_y", 0.0f), -0.99f, 0.99f);
auto joystick = state.GetSDLJoystickByGUID(guid, port); auto joystick = state.GetSDLJoystickByGUID(guid, port);
// This is necessary so accessing GetAxis with axis_x and axis_y won't crash // This is necessary so accessing GetAxis with axis_x and axis_y won't crash