+ if (in_type[i] == PSE_PAD_TYPE_NEGCON)
+ {
+ // Query digital inputs
+ //
+ // > Pad-Up
+ if (input_state_cb(i, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP)){
+ in_keystate[i] |= (1 << DKEY_UP);
+ }
+ // > Pad-Right
+ if (input_state_cb(i, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT)){
+ in_keystate[i] |= (1 << DKEY_RIGHT);
+ }
+ // > Pad-Down
+ if (input_state_cb(i, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN)){
+ in_keystate[i] |= (1 << DKEY_DOWN);
+ }
+ // > Pad-Left
+ if (input_state_cb(i, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT)){
+ in_keystate[i] |= (1 << DKEY_LEFT);
+ }
+ // > Start
+ if (input_state_cb(i, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START)){
+ in_keystate[i] |= (1 << DKEY_START);
+ }
+ // > neGcon A
+ if (input_state_cb(i, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A)){
+ in_keystate[i] |= (1 << DKEY_CIRCLE);
+ }
+ // > neGcon B
+ if (input_state_cb(i, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X)){
+ in_keystate[i] |= (1 << DKEY_TRIANGLE);
+ }
+ // > neGcon R shoulder (digital)
+ if (input_state_cb(i, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R)){
+ in_keystate[i] |= (1 << DKEY_R1);
+ }
+ // Query analog inputs
+ //
+ // From studying 'libpcsxcore/plugins.c' and 'frontend/plugin.c':
+ // >> pad->leftJoyX == in_analog_left[i][0] == NeGcon II
+ // >> pad->leftJoyY == in_analog_left[i][1] == NeGcon L
+ // >> pad->rightJoyX == in_analog_right[i][0] == NeGcon twist
+ // >> pad->rightJoyY == in_analog_right[i][1] == NeGcon I
+ // So we just have to map in_analog_left/right to more
+ // appropriate inputs...
+ //
+ // > NeGcon twist
+ // >> Get raw analog stick value and account for deadzone
+ lsx = input_state_cb(i, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X);
+ if (lsx > negcon_deadzone){
+ lsx = lsx - negcon_deadzone;
+ } else if (lsx < -negcon_deadzone){
+ lsx = lsx + negcon_deadzone;
+ } else {
+ lsx = 0;
+ }
+ // >> Convert to an 'amplitude' [-1.0,1.0] and adjust response
+ negcon_twist_amplitude = (float)lsx / (float)(NEGCON_RANGE - negcon_deadzone);
+ if (negcon_linearity == 2){
+ if (negcon_twist_amplitude < 0.0){
+ negcon_twist_amplitude = -(negcon_twist_amplitude * negcon_twist_amplitude);
+ } else {
+ negcon_twist_amplitude = negcon_twist_amplitude * negcon_twist_amplitude;
+ }
+ } else if (negcon_linearity == 3){
+ negcon_twist_amplitude = negcon_twist_amplitude * negcon_twist_amplitude * negcon_twist_amplitude;
+ }
+ // >> Convert to final 'in_analog' integer value [0,255]
+ in_analog_right[i][0] = MAX(MIN((int)(negcon_twist_amplitude * 128.0f) + 128, 255), 0);
+ // > NeGcon I + II
+ // >> Handle right analog stick vertical axis mapping...
+ // - Up (-Y) == accelerate == neGcon I
+ // - Down (+Y) == brake == neGcon II
+ negcon_i_rs = 0;
+ negcon_ii_rs = 0;
+ rsy = input_state_cb(i, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y);
+ if (rsy >= 0){
+ // Account for deadzone
+ // (Note: have never encountered a gamepad with significant differences
+ // in deadzone between left/right analog sticks, so use the regular 'twist'
+ // deadzone here)
+ if (rsy > negcon_deadzone){
+ rsy = rsy - negcon_deadzone;
+ } else {
+ rsy = 0;
+ }
+ // Convert to 'in_analog' integer value [0,255]
+ negcon_ii_rs = MIN((int)(((float)rsy / (float)(NEGCON_RANGE - negcon_deadzone)) * 255.0f), 255);
+ } else {
+ if (rsy < -negcon_deadzone){
+ rsy = -1 * (rsy + negcon_deadzone);
+ } else {
+ rsy = 0;
+ }
+ negcon_i_rs = MIN((int)(((float)rsy / (float)(NEGCON_RANGE - negcon_deadzone)) * 255.0f), 255);
+ }
+ // >> NeGcon I
+ in_analog_right[i][1] = MAX(
+ MAX(
+ get_analog_button(input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_R2),
+ get_analog_button(input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_B)
+ ),
+ negcon_i_rs
+ );
+ // >> NeGcon II
+ in_analog_left[i][0] = MAX(
+ MAX(
+ get_analog_button(input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_L2),
+ get_analog_button(input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_Y)
+ ),
+ negcon_ii_rs
+ );
+ // > NeGcon L
+ in_analog_left[i][1] = get_analog_button(input_state_cb, i, RETRO_DEVICE_ID_JOYPAD_L);
+ }
+ else