mirror of
https://github.com/libretro/blueMSX-libretro.git
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136 lines
3.8 KiB
C
Executable File
136 lines
3.8 KiB
C
Executable File
/*****************************************************************************
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** $Source: /cygdrive/d/Private/_SVNROOT/bluemsx/blueMSX/Src/Input/Sg1000JoyIo.c,v $
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**
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** $Revision: 1.4 $
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**
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** $Date: 2008-03-30 18:38:40 $
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**
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** More info: http://www.bluemsx.com
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**
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** Copyright (C) 2003-2006 Daniel Vik
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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**
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******************************************************************************
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*/
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#include "Sg1000JoyIo.h"
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#include "Sg1000Joystick.h"
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#include "Sg1000JoystickDevice.h"
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#include "JoystickPort.h"
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#include "InputEvent.h"
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#include "DeviceManager.h"
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#include "SaveState.h"
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#include "MediaDb.h"
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#include "SviJoystick.h"
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#include <stdlib.h>
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struct Sg1000JoyIo {
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Sg1000JoystickDevice* joyDevice[2];
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int joyDeviceHandle;
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int deviceHandle;
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};
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static void joyIoHandler(Sg1000JoyIo* joyIo, int port, JoystickPortType type)
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{
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if (port >= 2) {
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return;
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}
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if (joyIo->joyDevice[port] != NULL && joyIo->joyDevice[port]->destroy != NULL) {
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joyIo->joyDevice[port]->destroy(joyIo->joyDevice[port]);
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}
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switch (type) {
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default:
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case JOYSTICK_PORT_NONE:
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joyIo->joyDevice[port] = NULL;
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break;
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case JOYSTICK_PORT_JOYSTICK:
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joyIo->joyDevice[port] = sg1000JoystickCreate(port);
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break;
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}
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}
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static void loadState(Sg1000JoyIo* joyIo)
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{
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int i;
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for (i = 0; i < 2; i++) {
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if (joyIo->joyDevice[i] != NULL && joyIo->joyDevice[i]->loadState != NULL) {
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joyIo->joyDevice[i]->loadState(joyIo->joyDevice[i]);
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}
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}
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}
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static void saveState(Sg1000JoyIo* joyIo)
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{
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int i;
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for (i = 0; i < 2; i++) {
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if (joyIo->joyDevice[i] != NULL && joyIo->joyDevice[i]->saveState != NULL) {
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joyIo->joyDevice[i]->saveState(joyIo->joyDevice[i]);
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}
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}
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}
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static void reset(Sg1000JoyIo* joyIo)
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{
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int i;
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for (i = 0; i < 2; i++) {
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if (joyIo->joyDevice[i] != NULL && joyIo->joyDevice[i]->reset != NULL) {
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joyIo->joyDevice[i]->reset(joyIo->joyDevice[i]);
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}
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}
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}
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static void destroy(Sg1000JoyIo* joyIo)
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{
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int i;
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for (i = 0; i < 2; i++) {
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if (joyIo->joyDevice[i] != NULL && joyIo->joyDevice[i]->destroy != NULL) {
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joyIo->joyDevice[i]->destroy(joyIo->joyDevice[i]);
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}
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}
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joystickPortUpdateHandlerUnregister();
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deviceManagerUnregister(joyIo->deviceHandle);
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}
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UInt16 sg1000JoyIoRead(Sg1000JoyIo* joyIo)
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{
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UInt16 state = 0xf000;
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if (joyIo->joyDevice[0] != NULL && joyIo->joyDevice[0]->read != NULL) {
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state |= joyIo->joyDevice[0]->read(joyIo->joyDevice[0]) << 0;
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}
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if (joyIo->joyDevice[1] != NULL && joyIo->joyDevice[1]->read != NULL) {
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state |= (UInt16)joyIo->joyDevice[1]->read(joyIo->joyDevice[1]) << 6;
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}
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return state;
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}
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Sg1000JoyIo* sg1000JoyIoCreate()
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{
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DeviceCallbacks callbacks = { destroy, reset, saveState, loadState };
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Sg1000JoyIo* sg1000JoyIo = (Sg1000JoyIo*)calloc(1, sizeof(Sg1000JoyIo));
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joystickPortUpdateHandlerRegister(joyIoHandler, sg1000JoyIo);
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sg1000JoyIo->deviceHandle = deviceManagerRegister(ROM_UNKNOWN, &callbacks, sg1000JoyIo);
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return sg1000JoyIo;
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}
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