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kaizen/src/backend/core/mmio/PIF/Device.cpp
Simone af7a6c004b start this from scratch
2024-01-18 12:31:53 +01:00

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#include <PIF.hpp>
#include <PIF/MupenMovie.hpp>
#include <Netplay.hpp>
#include <log.hpp>
#include <SDL2/SDL_keyboard.h>
namespace n64 {
void PIF::InitDevices(SaveType saveType) {
joybusDevices[0].type = JOYBUS_CONTROLLER;
joybusDevices[0].accessoryType = ACCESSORY_MEMPACK;
for (int i = 1; i < 4; i++) { //TODO: make this configurable
joybusDevices[i].type = JOYBUS_NONE;
joybusDevices[i].accessoryType = ACCESSORY_NONE;
}
if (saveType == SAVE_EEPROM_4k) {
joybusDevices[4].type = JOYBUS_4KB_EEPROM;
} else if (saveType == SAVE_EEPROM_16k) {
joybusDevices[4].type = JOYBUS_16KB_EEPROM;
} else {
joybusDevices[4].type = JOYBUS_NONE;
}
joybusDevices[5].type = JOYBUS_NONE;
}
#define GET_BUTTON(gamecontroller, i) SDL_GameControllerGetButton(gamecontroller, i)
#define GET_AXIS(gamecontroller, axis) SDL_GameControllerGetAxis(gamecontroller, axis)
void PIF::PollController() {
if(gamepadConnected) {
bool A = GET_BUTTON(gamepad, SDL_CONTROLLER_BUTTON_A);
bool B = GET_BUTTON(gamepad, SDL_CONTROLLER_BUTTON_X);
bool Z = GET_AXIS(gamepad, SDL_CONTROLLER_AXIS_TRIGGERLEFT) == SDL_JOYSTICK_AXIS_MAX;
bool START = GET_BUTTON(gamepad, SDL_CONTROLLER_BUTTON_START);
bool DUP = GET_BUTTON(gamepad, SDL_CONTROLLER_BUTTON_DPAD_UP);
bool DDOWN = GET_BUTTON(gamepad, SDL_CONTROLLER_BUTTON_DPAD_DOWN);
bool DLEFT = GET_BUTTON(gamepad, SDL_CONTROLLER_BUTTON_DPAD_LEFT);
bool DRIGHT = GET_BUTTON(gamepad, SDL_CONTROLLER_BUTTON_DPAD_RIGHT);
bool L = GET_BUTTON(gamepad, SDL_CONTROLLER_BUTTON_LEFTSHOULDER);
bool R = GET_BUTTON(gamepad, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER);
bool CUP = GET_AXIS(gamepad, SDL_CONTROLLER_AXIS_RIGHTY) <= -127;
bool CDOWN = GET_AXIS(gamepad, SDL_CONTROLLER_AXIS_RIGHTY) >= 127;
bool CLEFT = GET_AXIS(gamepad, SDL_CONTROLLER_AXIS_RIGHTX) <= -127;
bool CRIGHT = GET_AXIS(gamepad, SDL_CONTROLLER_AXIS_RIGHTX) >= 127;
joybusDevices[channel].controller.a = A;
joybusDevices[channel].controller.b = B;
joybusDevices[channel].controller.z = Z;
joybusDevices[channel].controller.start = START;
joybusDevices[channel].controller.dp_up = DUP;
joybusDevices[channel].controller.dp_down = DDOWN;
joybusDevices[channel].controller.dp_left = DLEFT;
joybusDevices[channel].controller.dp_right = DRIGHT;
joybusDevices[channel].controller.joy_reset = L && R && START;
joybusDevices[channel].controller.l = L;
joybusDevices[channel].controller.r = R;
joybusDevices[channel].controller.c_up = CUP;
joybusDevices[channel].controller.c_down = CDOWN;
joybusDevices[channel].controller.c_left = CLEFT;
joybusDevices[channel].controller.c_right = CRIGHT;
float xclamped = GET_AXIS(gamepad, SDL_CONTROLLER_AXIS_LEFTX);
if(xclamped < 0) {
xclamped /= float(std::abs(SDL_JOYSTICK_AXIS_MIN));
} else {
xclamped /= SDL_JOYSTICK_AXIS_MAX;
}
xclamped *= 86;
float yclamped = GET_AXIS(gamepad, SDL_CONTROLLER_AXIS_LEFTY);
if(yclamped < 0) {
yclamped /= float(std::abs(SDL_JOYSTICK_AXIS_MIN));
} else {
yclamped /= SDL_JOYSTICK_AXIS_MAX;
}
yclamped *= 86;
joybusDevices[channel].controller.joy_x = xclamped;
joybusDevices[channel].controller.joy_y = -yclamped;
if (joybusDevices[channel].controller.joy_reset) {
joybusDevices[channel].controller.start = false;
joybusDevices[channel].controller.joy_x = 0;
joybusDevices[channel].controller.joy_y = 0;
}
} else {
const uint8_t* state = SDL_GetKeyboardState(nullptr);
joybusDevices[channel].controller.a = state[SDL_SCANCODE_X];
joybusDevices[channel].controller.b = state[SDL_SCANCODE_C];
joybusDevices[channel].controller.z = state[SDL_SCANCODE_Z];
joybusDevices[channel].controller.start = state[SDL_SCANCODE_RETURN];
joybusDevices[channel].controller.dp_up = state[SDL_SCANCODE_PAGEUP];
joybusDevices[channel].controller.dp_down = state[SDL_SCANCODE_PAGEDOWN];
joybusDevices[channel].controller.dp_left = state[SDL_SCANCODE_HOME];
joybusDevices[channel].controller.dp_right = state[SDL_SCANCODE_END];
joybusDevices[channel].controller.joy_reset = state[SDL_SCANCODE_RETURN] && state[SDL_SCANCODE_A] && state[SDL_SCANCODE_S];
joybusDevices[channel].controller.l = state[SDL_SCANCODE_A];
joybusDevices[channel].controller.r = state[SDL_SCANCODE_S];
joybusDevices[channel].controller.c_up = state[SDL_SCANCODE_I];
joybusDevices[channel].controller.c_down = state[SDL_SCANCODE_K];
joybusDevices[channel].controller.c_left = state[SDL_SCANCODE_J];
joybusDevices[channel].controller.c_right = state[SDL_SCANCODE_L];
s8 xaxis = 0, yaxis = 0;
if (state[SDL_SCANCODE_LEFT]) {
xaxis = -86;
} else if (state[SDL_SCANCODE_RIGHT]) {
xaxis = 86;
}
if (state[SDL_SCANCODE_DOWN]) {
yaxis = -86;
} else if (state[SDL_SCANCODE_UP]) {
yaxis = 86;
}
joybusDevices[channel].controller.joy_x = xaxis;
joybusDevices[channel].controller.joy_y = yaxis;
if (joybusDevices[channel].controller.joy_reset) {
joybusDevices[channel].controller.start = false;
joybusDevices[channel].controller.joy_x = 0;
joybusDevices[channel].controller.joy_y = 0;
}
}
}
void PIF::ControllerID(u8 *res) const {
if (channel < 6) {
switch (joybusDevices[channel].type) {
case JOYBUS_NONE:
res[0] = 0x00;
res[1] = 0x00;
res[2] = 0x00;
break;
case JOYBUS_CONTROLLER:
res[0] = 0x05;
res[1] = 0x00;
res[2] = joybusDevices[channel].accessoryType != ACCESSORY_NONE ? 0x01 : 0x02;
break;
case JOYBUS_DANCEPAD:
res[0] = 0x05;
res[1] = 0x00;
res[2] = 0x00;
break;
case JOYBUS_VRU:
res[0] = 0x00;
res[1] = 0x01;
res[2] = 0x00;
break;
case JOYBUS_MOUSE:
res[0] = 0x02;
res[1] = 0x00;
res[2] = 0x00;
break;
case JOYBUS_RANDNET_KEYBOARD:
res[0] = 0x00;
res[1] = 0x02;
res[2] = 0x00;
break;
case JOYBUS_DENSHA_DE_GO:
res[0] = 0x20;
res[1] = 0x04;
res[2] = 0x00;
break;
case JOYBUS_4KB_EEPROM:
res[0] = 0x00;
res[1] = 0x80;
res[2] = 0x00;
break;
case JOYBUS_16KB_EEPROM:
res[0] = 0x00;
res[1] = 0xC0;
res[2] = 0x00;
break;
}
} else {
Util::panic("Device ID on unknown channel {}", channel);
}
}
bool PIF::ReadButtons(u8* res) const {
if(channel >= 6) {
res[0] = 0;
res[1] = 0;
res[2] = 0;
res[3] = 0;
return false;
}
switch (joybusDevices[channel].type) {
case JOYBUS_NONE:
res[0] = 0x00;
res[1] = 0x00;
res[2] = 0x00;
res[3] = 0x00;
return false; // Device not present
case JOYBUS_CONTROLLER:
if (TasMovieLoaded()) {
Controller controller = TasNextInputs();
res[0] = controller.byte1;
res[1] = controller.byte2;
res[2] = controller.joy_x;
res[3] = controller.joy_y;
} else {
res[0] = joybusDevices[channel].controller.byte1;
res[1] = joybusDevices[channel].controller.byte2;
res[2] = joybusDevices[channel].controller.joy_x;
res[3] = joybusDevices[channel].controller.joy_y;
}
return true;
case JOYBUS_DANCEPAD:
case JOYBUS_VRU:
case JOYBUS_MOUSE:
case JOYBUS_RANDNET_KEYBOARD:
case JOYBUS_DENSHA_DE_GO:
case JOYBUS_4KB_EEPROM:
case JOYBUS_16KB_EEPROM:
return false;
}
return true;
}
}
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