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Rewrite Subor Mouse code, fixed latch updating outside of strobe.

This commit is contained in:
rainwarrior 2016-04-23 06:12:46 +00:00
parent ce4221c425
commit 9d9eb868bc
1 changed files with 30 additions and 35 deletions
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65
trunk/src/input/mouse.cpp
View File

@ -18,64 +18,59 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
// implementation of Subor Mouse
// used in Educational Computer 2000
#include <string.h>
#include <stdlib.h>
#include "share.h"
typedef struct {
int32 mzx, mzy, mzxold, mzyold;
uint32 readbit;
uint32 data;
uint8 latch;
int32 mx,my;
int32 lmx,lmy;
uint32 mb;
} MOUSE;
static MOUSE Mouse;
static void StrobeMOUSE(int w)
{
Mouse.readbit=0;
Mouse.latch = Mouse.mb & 0x03;
int32 dx = Mouse.mx - Mouse.lmx;
int32 dy = Mouse.my - Mouse.lmy;
Mouse.lmx = Mouse.mx;
Mouse.lmy = Mouse.my;
if (dx > 0) Mouse.latch |= (0x2 << 2);
else if (dx < 0) Mouse.latch |= (0x3 << 2);
if (dy > 0) Mouse.latch |= (0x2 << 4);
else if (dy < 0) Mouse.latch |= (0x3 << 4);
//FCEU_printf("Subor Mouse: %02X\n",Mouse.latch);
}
static uint8 ReadMOUSE(int w)
{
uint8 ret=0;
if(Mouse.readbit>=8)
ret|=1;
else
{
ret|=(Mouse.data>>Mouse.readbit)&1;
if(!fceuindbg)
Mouse.readbit++;
}
return(ret);
uint8 result = Mouse.latch & 0x01;
Mouse.latch = (Mouse.latch >> 1) | 0x80;
return result;
}
static void 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;
uint32 *ptr=(uint32*)data;
Mouse.mx = ptr[0];
Mouse.my = ptr[1];
Mouse.mb = ptr[2];
}
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);
memset(&Mouse,0,sizeof(Mouse));
return(&MOUSEC);
}