From 7ad423923dddb5e037d54e70cb066b03f8346dec Mon Sep 17 00:00:00 2001
From: Ameer <aj662@drexel.edu>
Date: Mon, 6 Jul 2020 21:58:31 -0400
Subject: [PATCH] Save origin state of GC controller analog features, compare
against origin for input detection
---
src/input_common/gcadapter/gc_adapter.cpp | 72 +++++++++++++++++------
src/input_common/gcadapter/gc_adapter.h | 11 ++--
src/input_common/gcadapter/gc_poller.cpp | 17 ++++--
3 files changed, 72 insertions(+), 28 deletions(-)
diff --git a/src/input_common/gcadapter/gc_adapter.cpp b/src/input_common/gcadapter/gc_adapter.cpp
index b39d2a3fb..8465309d0 100644
--- a/src/input_common/gcadapter/gc_adapter.cpp
+++ b/src/input_common/gcadapter/gc_adapter.cpp
@@ -25,19 +25,15 @@ Adapter::Adapter() {
current_status = NO_ADAPTER_DETECTED;
libusb_init(&libusb_ctx);
+ get_origin.fill(true);
StartScanThread();
}
GCPadStatus Adapter::GetPadStatus(int port, const std::array<u8, 37>& adapter_payload) {
GCPadStatus pad = {};
- bool get_origin = false;
ControllerTypes type = ControllerTypes(adapter_payload[1 + (9 * port)] >> 4);
- if (type != ControllerTypes::None) {
- get_origin = true;
- }
-
adapter_controllers_status[port] = type;
static constexpr std::array<PadButton, 8> b1_buttons{
@@ -69,16 +65,22 @@ GCPadStatus Adapter::GetPadStatus(int port, const std::array<u8, 37>& adapter_pa
}
}
- if (get_origin) {
- pad.button |= PAD_GET_ORIGIN;
- }
-
pad.stick_x = adapter_payload[1 + (9 * port) + 3];
pad.stick_y = adapter_payload[1 + (9 * port) + 4];
pad.substick_x = adapter_payload[1 + (9 * port) + 5];
pad.substick_y = adapter_payload[1 + (9 * port) + 6];
pad.trigger_left = adapter_payload[1 + (9 * port) + 7];
pad.trigger_right = adapter_payload[1 + (9 * port) + 8];
+
+ if (get_origin[port]) {
+ origin_status[port].stick_x = pad.stick_x;
+ origin_status[port].stick_y = pad.stick_y;
+ origin_status[port].substick_x = pad.substick_x;
+ origin_status[port].substick_y = pad.substick_y;
+ origin_status[port].trigger_left = pad.trigger_left;
+ origin_status[port].trigger_right = pad.trigger_right;
+ get_origin[port] = false;
+ }
}
return pad;
}
@@ -127,31 +129,31 @@ void Adapter::Read() {
for (std::size_t port = 0; port < pads.size(); ++port) {
pads[port] = GetPadStatus(port, adapter_payload_copy);
if (DeviceConnected(port) && configuring) {
- if (pads[port].button != PAD_GET_ORIGIN) {
+ if (pads[port].button != 0) {
pad_queue[port].Push(pads[port]);
}
// Accounting for a threshold here because of some controller variance
- if (pads[port].stick_x > pads[port].MAIN_STICK_CENTER_X + pads[port].THRESHOLD ||
- pads[port].stick_x < pads[port].MAIN_STICK_CENTER_X - pads[port].THRESHOLD) {
+ if (pads[port].stick_x > origin_status[port].stick_x + pads[port].THRESHOLD ||
+ pads[port].stick_x < origin_status[port].stick_x - pads[port].THRESHOLD) {
pads[port].axis = GCAdapter::PadAxes::StickX;
pads[port].axis_value = pads[port].stick_x;
pad_queue[port].Push(pads[port]);
}
- if (pads[port].stick_y > pads[port].MAIN_STICK_CENTER_Y + pads[port].THRESHOLD ||
- pads[port].stick_y < pads[port].MAIN_STICK_CENTER_Y - pads[port].THRESHOLD) {
+ if (pads[port].stick_y > origin_status[port].stick_y + pads[port].THRESHOLD ||
+ pads[port].stick_y < origin_status[port].stick_y - pads[port].THRESHOLD) {
pads[port].axis = GCAdapter::PadAxes::StickY;
pads[port].axis_value = pads[port].stick_y;
pad_queue[port].Push(pads[port]);
}
- if (pads[port].substick_x > pads[port].C_STICK_CENTER_X + pads[port].THRESHOLD ||
- pads[port].substick_x < pads[port].C_STICK_CENTER_X - pads[port].THRESHOLD) {
+ if (pads[port].substick_x > origin_status[port].substick_x + pads[port].THRESHOLD ||
+ pads[port].substick_x < origin_status[port].substick_x - pads[port].THRESHOLD) {
pads[port].axis = GCAdapter::PadAxes::SubstickX;
pads[port].axis_value = pads[port].substick_x;
pad_queue[port].Push(pads[port]);
}
- if (pads[port].substick_y > pads[port].C_STICK_CENTER_Y + pads[port].THRESHOLD ||
- pads[port].substick_y < pads[port].C_STICK_CENTER_Y - pads[port].THRESHOLD) {
+ if (pads[port].substick_y > origin_status[port].substick_y + pads[port].THRESHOLD ||
+ pads[port].substick_y < origin_status[port].substick_y - pads[port].THRESHOLD) {
pads[port].axis = GCAdapter::PadAxes::SubstickY;
pads[port].axis_value = pads[port].substick_y;
pad_queue[port].Push(pads[port]);
@@ -325,6 +327,7 @@ void Adapter::Reset() {
adapter_input_thread.join();
adapter_controllers_status.fill(ControllerTypes::None);
+ get_origin.fill(true);
current_status = NO_ADAPTER_DETECTED;
if (usb_adapter_handle) {
@@ -347,6 +350,7 @@ void Adapter::ResetDeviceType(int port) {
}
void Adapter::BeginConfiguration() {
+ get_origin.fill(true);
for (auto& pq : pad_queue) {
pq.Clear();
}
@@ -376,4 +380,36 @@ const std::array<GCState, 4>& Adapter::GetPadState() const {
return state;
}
+int Adapter::GetOriginValue(int port, int axis) {
+ const PadAxes padaxis = static_cast<PadAxes>(axis);
+ if (padaxis == PadAxes::StickX)
+ return origin_status[port].stick_x;
+ if (padaxis == PadAxes::StickY)
+ return origin_status[port].stick_y;
+ if (padaxis == PadAxes::SubstickX)
+ return origin_status[port].substick_x;
+ if (padaxis == PadAxes::SubstickY)
+ return origin_status[port].substick_x;
+ if (padaxis == PadAxes::TriggerLeft)
+ return origin_status[port].trigger_left;
+ if (padaxis == PadAxes::TriggerRight)
+ return origin_status[port].trigger_right;
+}
+
+const int Adapter::GetOriginValue(int port, int axis) const {
+ const PadAxes padaxis = static_cast<PadAxes>(axis);
+ if (padaxis == PadAxes::StickX)
+ return origin_status[port].stick_x;
+ if (padaxis == PadAxes::StickY)
+ return origin_status[port].stick_y;
+ if (padaxis == PadAxes::SubstickX)
+ return origin_status[port].substick_x;
+ if (padaxis == PadAxes::SubstickY)
+ return origin_status[port].substick_x;
+ if (padaxis == PadAxes::TriggerLeft)
+ return origin_status[port].trigger_left;
+ if (padaxis == PadAxes::TriggerRight)
+ return origin_status[port].trigger_right;
+}
+
} // namespace GCAdapter
diff --git a/src/input_common/gcadapter/gc_adapter.h b/src/input_common/gcadapter/gc_adapter.h
index 0ea6263eb..8b08d667d 100644
--- a/src/input_common/gcadapter/gc_adapter.h
+++ b/src/input_common/gcadapter/gc_adapter.h
@@ -13,12 +13,6 @@
namespace GCAdapter {
-enum {
- PAD_USE_ORIGIN = 0x0080,
- PAD_GET_ORIGIN = 0x2000,
- PAD_ERR_STATUS = 0x8000,
-};
-
enum class PadButton {
PAD_BUTTON_LEFT = 0x0001,
PAD_BUTTON_RIGHT = 0x0002,
@@ -102,6 +96,9 @@ public:
std::array<GCState, 4>& GetPadState();
const std::array<GCState, 4>& GetPadState() const;
+ int GetOriginValue(int port, int axis);
+ const int GetOriginValue(int port, int axis) const;
+
private:
GCPadStatus GetPadStatus(int port, const std::array<u8, 37>& adapter_payload);
@@ -155,6 +152,8 @@ private:
std::array<Common::SPSCQueue<GCPadStatus>, 4> pad_queue;
std::array<GCState, 4> state;
+ std::array<bool, 4> get_origin;
+ std::array<GCPadStatus, 4> origin_status;
};
} // namespace GCAdapter
diff --git a/src/input_common/gcadapter/gc_poller.cpp b/src/input_common/gcadapter/gc_poller.cpp
index 385ce8430..c9bb7e571 100644
--- a/src/input_common/gcadapter/gc_poller.cpp
+++ b/src/input_common/gcadapter/gc_poller.cpp
@@ -34,7 +34,7 @@ public:
explicit GCAxisButton(int port_, int axis_, float threshold_, bool trigger_if_greater_,
GCAdapter::Adapter* adapter)
: port(port_), axis(axis_), threshold(threshold_), trigger_if_greater(trigger_if_greater_),
- gcadapter(adapter) {
+ gcadapter(adapter), origin_value(adapter->GetOriginValue(port_, axis_)) {
// L/R triggers range is only in positive direction beginning near 0
// 0.0 threshold equates to near half trigger press, but threshold accounts for variability.
if (axis > 3) {
@@ -43,7 +43,8 @@ public:
}
bool GetStatus() const override {
- const float axis_value = (gcadapter->GetPadState()[port].axes.at(axis) - 128.0f) / 128.0f;
+ const float current_axis_value = gcadapter->GetPadState()[port].axes.at(axis);
+ const float axis_value = (current_axis_value - origin_value) / 128.0f;
if (trigger_if_greater) {
// TODO: Might be worthwile to set a slider for the trigger threshold. It is currently
// always set to 0.5 in configure_input_player.cpp ZL/ZR HandleClick
@@ -58,6 +59,7 @@ private:
float threshold;
bool trigger_if_greater;
GCAdapter::Adapter* gcadapter;
+ const float origin_value;
};
GCButtonFactory::GCButtonFactory(std::shared_ptr<GCAdapter::Adapter> adapter_)
@@ -144,14 +146,19 @@ void GCButtonFactory::EndConfiguration() {
class GCAnalog final : public Input::AnalogDevice {
public:
GCAnalog(int port_, int axis_x_, int axis_y_, float deadzone_, GCAdapter::Adapter* adapter)
- : port(port_), axis_x(axis_x_), axis_y(axis_y_), deadzone(deadzone_), gcadapter(adapter) {}
+ : port(port_), axis_x(axis_x_), axis_y(axis_y_), deadzone(deadzone_), gcadapter(adapter),
+ origin_value_x(adapter->GetOriginValue(port_, axis_x_)),
+ origin_value_y(adapter->GetOriginValue(port_, axis_y_)) {}
float GetAxis(int axis) const {
std::lock_guard lock{mutex};
// division is not by a perfect 128 to account for some variance in center location
// e.g. my device idled at 131 in X, 120 in Y, and full range of motion was in range
// [20-230]
- return (gcadapter->GetPadState()[port].axes.at(axis) - 128.0f) / 95.0f;
+ if (axis % 2 == 0)
+ return (gcadapter->GetPadState()[port].axes.at(axis) - origin_value_x) / 95.0f;
+ else
+ return (gcadapter->GetPadState()[port].axes.at(axis) - origin_value_y) / 95.0f;
}
std::pair<float, float> GetAnalog(int axis_x, int axis_y) const {
@@ -201,6 +208,8 @@ private:
const int axis_x;
const int axis_y;
const float deadzone;
+ const float origin_value_x;
+ const float origin_value_y;
mutable std::mutex mutex;
GCAdapter::Adapter* gcadapter;
};