87 lines
2.3 KiB
C
87 lines
2.3 KiB
C
/* FCE Ultra - NES/Famicom Emulator
|
|
*
|
|
* Copyright notice for this file:
|
|
* Copyright (C) 2002 Xodnizel
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include "share.h"
|
|
|
|
typedef struct {
|
|
int32 mzx, mzy, mzxold, mzyold;
|
|
uint32 readbit;
|
|
uint32 data;
|
|
} MOUSE;
|
|
|
|
static MOUSE Mouse;
|
|
|
|
static void FP_FASTAPASS(1) StrobeMOUSE(int w) {
|
|
Mouse.readbit = 0;
|
|
if ((Mouse.mzxold - Mouse.mzx) > 0)
|
|
Mouse.data |= 0x0C;
|
|
else if ((Mouse.mzxold - Mouse.mzx) < 0)
|
|
Mouse.data |= 0x04;
|
|
if ((Mouse.mzyold - Mouse.mzy) > 0)
|
|
Mouse.data |= 0x30;
|
|
else if ((Mouse.mzyold - Mouse.mzy) < 0)
|
|
Mouse.data |= 0x10;
|
|
}
|
|
|
|
static uint8 FP_FASTAPASS(1) ReadMOUSE(int w) {
|
|
uint8 ret = 0;
|
|
if (Mouse.readbit >= 8)
|
|
ret |= 1;
|
|
else {
|
|
ret |= (Mouse.data >> Mouse.readbit) & 1;
|
|
#ifdef FCEUDEF_DEBUGGER
|
|
if (!fceuindbg)
|
|
#endif
|
|
Mouse.readbit++;
|
|
}
|
|
return(ret);
|
|
}
|
|
|
|
static void FP_FASTAPASS(3) UpdateMOUSE(int w, void *data, int arg) {
|
|
uint32 *ptr = (uint32*)data;
|
|
Mouse.data = 0;
|
|
Mouse.mzxold = Mouse.mzx;
|
|
Mouse.mzyold = Mouse.mzy;
|
|
Mouse.mzx = ptr[0];
|
|
Mouse.mzy = ptr[1];
|
|
Mouse.data |= ptr[2];
|
|
if ((Mouse.mzxold - Mouse.mzx) > 0)
|
|
Mouse.data |= 0x0C;
|
|
else if ((Mouse.mzxold - Mouse.mzx) < 0)
|
|
Mouse.data |= 0x04;
|
|
if ((Mouse.mzyold - Mouse.mzy) > 0)
|
|
Mouse.data |= 0x30;
|
|
else if ((Mouse.mzyold - Mouse.mzy) < 0)
|
|
Mouse.data |= 0x10;
|
|
}
|
|
|
|
static INPUTC MOUSEC = { ReadMOUSE, 0, StrobeMOUSE, UpdateMOUSE, 0, 0 };
|
|
|
|
INPUTC *FCEU_InitMouse(int w) {
|
|
Mouse.mzx = 0;
|
|
Mouse.mzy = 0;
|
|
Mouse.mzxold = 0;
|
|
Mouse.mzyold = 0;
|
|
Mouse.data = 0;
|
|
return(&MOUSEC);
|
|
}
|