9bd1ba7c47
which included commits to RCS files with non-trunk default branches.
604 lines
13 KiB
C
604 lines
13 KiB
C
/*
|
|
THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
|
|
SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
|
|
END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
|
|
ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
|
|
IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
|
|
SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
|
|
FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
|
|
CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
|
|
AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
|
|
COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
|
|
*/
|
|
|
|
|
|
#pragma off (unreferenced)
|
|
static char rcsid[] = "$Id: joyc.c,v 1.1.1.1 2001-01-19 03:30:14 bradleyb Exp $";
|
|
#pragma on (unreferenced)
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <conio.h>
|
|
#include <dos.h>
|
|
#include <i86.h>
|
|
|
|
//#define ARCADE 1
|
|
|
|
#include "types.h"
|
|
#include "error.h"
|
|
#include "mono.h"
|
|
#include "joy.h"
|
|
#include "dpmi.h"
|
|
|
|
//In key.c
|
|
// ebx = read mask
|
|
// edi = pointer to buffer
|
|
// returns number of events
|
|
int joy_read_stick_asm( int read_masks, int * event_buffer, int timeout );
|
|
#pragma aux joy_read_stick_asm parm [ebx] [edi] [ecx] value [eax] modify exact [eax ebx ecx edx edi];
|
|
|
|
int joy_read_stick_polled( int read_masks, int * event_buffer, int timeout );
|
|
#pragma aux joy_read_stick_polled parm [ebx] [edi] [ecx] value [eax] modify exact [eax ebx ecx edx edi];
|
|
|
|
int joy_read_stick_bios( int read_masks, int * event_buffer, int timeout );
|
|
#pragma aux joy_read_stick_bios parm [ebx] [edi] [ecx] value [eax] modify exact [eax ebx ecx edx edi];
|
|
|
|
|
|
char joy_installed = 0;
|
|
char joy_present = 0;
|
|
|
|
#define JOY_READ_BUTTONS ((~(inp(0x201) >> 4))&0xf)
|
|
#ifdef ARCADE
|
|
#define JOY_READ_BUTTONS_ARCADE (~(inp(0x2A1)))
|
|
#define MAX_BUTTONS 28
|
|
#else
|
|
#define MAX_BUTTONS 20
|
|
#endif
|
|
|
|
typedef struct Button_info {
|
|
ubyte ignore;
|
|
ubyte state;
|
|
ubyte last_state;
|
|
int timedown;
|
|
ubyte downcount;
|
|
ubyte upcount;
|
|
} Button_info;
|
|
|
|
typedef struct Joy_info {
|
|
ubyte present_mask;
|
|
ubyte slow_read;
|
|
int max_timer;
|
|
int read_count;
|
|
ubyte last_value;
|
|
Button_info buttons[MAX_BUTTONS];
|
|
int axis_min[4];
|
|
int axis_center[4];
|
|
int axis_max[4];
|
|
} Joy_info;
|
|
|
|
Joy_info joystick;
|
|
|
|
void joy_get_cal_vals(int *axis_min, int *axis_center, int *axis_max)
|
|
{
|
|
int i;
|
|
|
|
for (i=0; i<4; i++) {
|
|
axis_min[i] = joystick.axis_min[i];
|
|
axis_center[i] = joystick.axis_center[i];
|
|
axis_max[i] = joystick.axis_max[i];
|
|
}
|
|
}
|
|
|
|
void joy_set_cal_vals(int *axis_min, int *axis_center, int *axis_max)
|
|
{
|
|
int i;
|
|
|
|
for (i=0; i<4; i++) {
|
|
joystick.axis_min[i] = axis_min[i];
|
|
joystick.axis_center[i] = axis_center[i];
|
|
joystick.axis_max[i] = axis_max[i];
|
|
}
|
|
}
|
|
|
|
|
|
ubyte joy_get_present_mask() {
|
|
return joystick.present_mask;
|
|
}
|
|
|
|
void joy_set_timer_rate(int max_value ) {
|
|
_disable();
|
|
joystick.max_timer = max_value;
|
|
_enable();
|
|
}
|
|
|
|
int joy_get_timer_rate() {
|
|
return joystick.max_timer;
|
|
}
|
|
|
|
|
|
void joy_flush() {
|
|
int i;
|
|
|
|
if (!joy_installed) return;
|
|
|
|
_disable();
|
|
for (i=0; i<MAX_BUTTONS; i++ ) {
|
|
joystick.buttons[i].ignore = 0;
|
|
joystick.buttons[i].state = 0;
|
|
joystick.buttons[i].timedown = 0;
|
|
joystick.buttons[i].downcount = 0;
|
|
joystick.buttons[i].upcount = 0;
|
|
}
|
|
_enable();
|
|
|
|
}
|
|
|
|
#pragma off (check_stack)
|
|
|
|
extern int joy_read_buttons_bios();
|
|
|
|
void joy_handler(int ticks_this_time) {
|
|
ubyte value;
|
|
#ifdef ARCADE
|
|
ubyte valuea;
|
|
#endif
|
|
int i, state;
|
|
Button_info * button;
|
|
|
|
joystick.max_timer = ticks_this_time;
|
|
|
|
if ( joystick.slow_read & JOY_BIOS_READINGS ) {
|
|
joystick.read_count++;
|
|
if ( joystick.read_count > 7 ) {
|
|
joystick.read_count = 0;
|
|
value = joy_read_buttons_bios();
|
|
joystick.last_value = value;
|
|
} else {
|
|
value = joystick.last_value;
|
|
}
|
|
} else {
|
|
value = JOY_READ_BUTTONS;
|
|
#ifdef ARCADE
|
|
valuea = JOY_READ_BUTTONS_ARCADE;
|
|
#endif
|
|
}
|
|
|
|
for (i=0; i<MAX_BUTTONS; i++ ) {
|
|
button = &joystick.buttons[i];
|
|
if (!button->ignore) {
|
|
if ( i < 5 )
|
|
state = (value >> i) & 1;
|
|
#ifdef ARCADE
|
|
else if ( i >= 20 )
|
|
state = (valuea >> (i-20)) & 1;
|
|
#endif
|
|
else if (i==(value+4))
|
|
state = 1;
|
|
else
|
|
state = 0;
|
|
|
|
if ( button->last_state == state ) {
|
|
if (state) button->timedown += ticks_this_time;
|
|
} else {
|
|
if (state) {
|
|
button->downcount += state;
|
|
button->state = 1;
|
|
} else {
|
|
button->upcount += button->state;
|
|
button->state = 0;
|
|
}
|
|
button->last_state = state;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void joy_handler_end() { // Dummy function to help calculate size of joystick handler function
|
|
}
|
|
|
|
#pragma off (check_stack)
|
|
|
|
ubyte joy_read_raw_buttons() {
|
|
if ( joystick.slow_read & JOY_BIOS_READINGS )
|
|
return joy_read_buttons_bios();
|
|
else
|
|
return JOY_READ_BUTTONS;
|
|
}
|
|
|
|
void joy_set_slow_reading(int flag)
|
|
{
|
|
joystick.slow_read |= flag;
|
|
joy_set_cen();
|
|
}
|
|
|
|
ubyte joystick_read_raw_axis( ubyte mask, int * axis )
|
|
{
|
|
ubyte read_masks, org_masks;
|
|
int t, t1, t2, buffer[4*2+2];
|
|
int e, i, num_channels, c;
|
|
|
|
axis[0] = 0; axis[1] = 0;
|
|
axis[2] = 0; axis[3] = 0;
|
|
|
|
if (!joy_installed) return 0;
|
|
|
|
read_masks = 0;
|
|
org_masks = mask;
|
|
|
|
mask &= joystick.present_mask; // Don't read non-present channels
|
|
if ( mask==0 ) {
|
|
return 0; // Don't read if no stick connected.
|
|
}
|
|
|
|
if ( joystick.slow_read & JOY_SLOW_READINGS ) {
|
|
for (c=0; c<4; c++ ) {
|
|
if ( mask & (1 << c)) {
|
|
// Time out at (1/100th of a second)
|
|
|
|
if ( joystick.slow_read & JOY_POLLED_READINGS )
|
|
num_channels = joy_read_stick_polled( (1 << c), buffer, 65536 );
|
|
else if ( joystick.slow_read & JOY_BIOS_READINGS )
|
|
num_channels = joy_read_stick_bios( (1 << c), buffer, 65536 );
|
|
else
|
|
num_channels = joy_read_stick_asm( (1 << c), buffer, (1193180/100) );
|
|
|
|
if ( num_channels > 0 ) {
|
|
t1 = buffer[0];
|
|
e = buffer[1];
|
|
t2 = buffer[2];
|
|
if ( joystick.slow_read & (JOY_POLLED_READINGS|JOY_BIOS_READINGS) ) {
|
|
t = t2 - t1;
|
|
} else {
|
|
if ( t1 > t2 )
|
|
t = t1 - t2;
|
|
else {
|
|
t = t1 + joystick.max_timer - t2;
|
|
//mprintf( 0, "%d, %d, %d, %d\n", t1, t2, joystick.max_timer, t );
|
|
}
|
|
}
|
|
|
|
if ( e & 1 ) { axis[0] = t; read_masks |= 1; }
|
|
if ( e & 2 ) { axis[1] = t; read_masks |= 2; }
|
|
if ( e & 4 ) { axis[2] = t; read_masks |= 4; }
|
|
if ( e & 8 ) { axis[3] = t; read_masks |= 8; }
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
// Time out at (1/100th of a second)
|
|
if ( joystick.slow_read & JOY_POLLED_READINGS )
|
|
num_channels = joy_read_stick_polled( mask, buffer, 65536 );
|
|
else if ( joystick.slow_read & JOY_BIOS_READINGS )
|
|
num_channels = joy_read_stick_bios( (1 << c), buffer, 65536 );
|
|
else
|
|
num_channels = joy_read_stick_asm( mask, buffer, (1193180/100) );
|
|
//mprintf(( 0, "(%d)\n", num_channels ));
|
|
|
|
for (i=0; i<num_channels; i++ ) {
|
|
t1 = buffer[0];
|
|
t2 = buffer[i*2+2];
|
|
|
|
if ( joystick.slow_read & (JOY_POLLED_READINGS|JOY_BIOS_READINGS) ) {
|
|
t = t2 - t1;
|
|
} else {
|
|
if ( t1 > t2 )
|
|
t = t1 - t2;
|
|
else {
|
|
t = t1 + joystick.max_timer - t2;
|
|
//mprintf(( 0, "%d, %d, %d, %d\n", t1, t2, joystick.max_timer, t ));
|
|
}
|
|
}
|
|
e = buffer[i*2+1];
|
|
|
|
if ( e & 1 ) { axis[0] = t; read_masks |= 1; }
|
|
if ( e & 2 ) { axis[1] = t; read_masks |= 2; }
|
|
if ( e & 4 ) { axis[2] = t; read_masks |= 4; }
|
|
if ( e & 8 ) { axis[3] = t; read_masks |= 8; }
|
|
}
|
|
|
|
}
|
|
|
|
return read_masks;
|
|
}
|
|
|
|
extern void timer_set_joyhandler( void (*joy_handler)() );
|
|
|
|
int joy_init()
|
|
{
|
|
int i;
|
|
int temp_axis[4];
|
|
|
|
joy_flush();
|
|
|
|
_disable();
|
|
for (i=0; i<MAX_BUTTONS; i++ )
|
|
joystick.buttons[i].last_state = 0;
|
|
_enable();
|
|
|
|
if ( !joy_installed ) {
|
|
joy_present = 0;
|
|
joy_installed = 1;
|
|
joystick.max_timer = 65536;
|
|
joystick.slow_read = 0;
|
|
joystick.read_count = 0;
|
|
joystick.last_value = 0;
|
|
|
|
//--------------- lock everything for the virtal memory ----------------------------------
|
|
if (!dpmi_lock_region ((void near *)joy_handler, (char *)joy_handler_end - (char near *)joy_handler)) {
|
|
Error( "Can't lock joystick handler!\n" );
|
|
}
|
|
|
|
if (!dpmi_lock_region (&joystick, sizeof(Joy_info))) {
|
|
Error( "Can't lock joystick handler's data!\n" );
|
|
}
|
|
|
|
timer_set_joyhandler(joy_handler);
|
|
}
|
|
|
|
// Do initial cheapy calibration...
|
|
joystick.present_mask = JOY_ALL_AXIS; // Assume they're all present
|
|
joystick.present_mask = joystick_read_raw_axis( JOY_ALL_AXIS, temp_axis );
|
|
|
|
if ( joystick.present_mask & 3 )
|
|
joy_present = 1;
|
|
else
|
|
joy_present = 0;
|
|
|
|
return joy_present;
|
|
}
|
|
|
|
void joy_close()
|
|
{
|
|
if (!joy_installed) return;
|
|
joy_installed = 0;
|
|
}
|
|
|
|
void joy_set_ul()
|
|
{
|
|
joystick.present_mask = JOY_ALL_AXIS; // Assume they're all present
|
|
joystick.present_mask = joystick_read_raw_axis( JOY_ALL_AXIS, joystick.axis_min );
|
|
if ( joystick.present_mask & 3 )
|
|
joy_present = 1;
|
|
else
|
|
joy_present = 0;
|
|
}
|
|
|
|
void joy_set_lr()
|
|
{
|
|
joystick.present_mask = JOY_ALL_AXIS; // Assume they're all present
|
|
joystick.present_mask = joystick_read_raw_axis( JOY_ALL_AXIS, joystick.axis_max );
|
|
if ( joystick.present_mask & 3 )
|
|
joy_present = 1;
|
|
else
|
|
joy_present = 0;
|
|
}
|
|
|
|
void joy_set_cen()
|
|
{
|
|
joystick.present_mask = JOY_ALL_AXIS; // Assume they're all present
|
|
joystick.present_mask = joystick_read_raw_axis( JOY_ALL_AXIS, joystick.axis_center );
|
|
if ( joystick.present_mask & 3 )
|
|
joy_present = 1;
|
|
else
|
|
joy_present = 0;
|
|
}
|
|
|
|
void joy_set_cen_fake(int channel)
|
|
{
|
|
|
|
int i,n=0;
|
|
int minx, maxx, cenx;
|
|
|
|
minx=maxx=cenx=0;
|
|
|
|
for (i=0; i<4; i++ ) {
|
|
if ( (joystick.present_mask & (1<<i)) && (i!=channel) ) {
|
|
n++;
|
|
minx += joystick.axis_min[i];
|
|
maxx += joystick.axis_max[i];
|
|
cenx += joystick.axis_center[i];
|
|
}
|
|
}
|
|
minx /= n;
|
|
maxx /= n;
|
|
cenx /= n;
|
|
|
|
joystick.axis_min[channel] = minx;
|
|
joystick.axis_max[channel] = maxx;
|
|
joystick.axis_center[channel] = cenx;
|
|
}
|
|
|
|
int joy_get_scaled_reading( int raw, int axn )
|
|
{
|
|
int x, d;
|
|
|
|
// Make sure it's calibrated properly.
|
|
if ( joystick.axis_center[axn] - joystick.axis_min[axn] < 5 ) return 0;
|
|
if ( joystick.axis_max[axn] - joystick.axis_center[axn] < 5 ) return 0;
|
|
|
|
raw -= joystick.axis_center[axn];
|
|
|
|
if ( raw < 0 ) {
|
|
d = joystick.axis_center[axn]-joystick.axis_min[axn];
|
|
} else {
|
|
d = joystick.axis_max[axn]-joystick.axis_center[axn];
|
|
}
|
|
|
|
if ( d )
|
|
x = (raw << 7) / d;
|
|
else
|
|
x = 0;
|
|
|
|
if ( x < -128 ) x = -128;
|
|
if ( x > 127 ) x = 127;
|
|
|
|
return x;
|
|
}
|
|
|
|
void joy_get_pos( int *x, int *y )
|
|
{
|
|
ubyte flags;
|
|
int axis[4];
|
|
|
|
if ((!joy_installed)||(!joy_present)) { *x=*y=0; return; }
|
|
|
|
flags=joystick_read_raw_axis( JOY_1_X_AXIS+JOY_1_Y_AXIS, axis );
|
|
|
|
if ( flags & JOY_1_X_AXIS )
|
|
*x = joy_get_scaled_reading( axis[0], 0 );
|
|
else
|
|
*x = 0;
|
|
|
|
if ( flags & JOY_1_Y_AXIS )
|
|
*y = joy_get_scaled_reading( axis[1], 1 );
|
|
else
|
|
*y = 0;
|
|
}
|
|
|
|
ubyte joy_read_stick( ubyte masks, int *axis )
|
|
{
|
|
ubyte flags;
|
|
int raw_axis[4];
|
|
|
|
if ((!joy_installed)||(!joy_present)) {
|
|
axis[0] = 0; axis[1] = 0;
|
|
axis[2] = 0; axis[3] = 0;
|
|
return 0;
|
|
}
|
|
|
|
flags=joystick_read_raw_axis( masks, raw_axis );
|
|
|
|
if ( flags & JOY_1_X_AXIS )
|
|
axis[0] = joy_get_scaled_reading( raw_axis[0], 0 );
|
|
else
|
|
axis[0] = 0;
|
|
|
|
if ( flags & JOY_1_Y_AXIS )
|
|
axis[1] = joy_get_scaled_reading( raw_axis[1], 1 );
|
|
else
|
|
axis[1] = 0;
|
|
|
|
if ( flags & JOY_2_X_AXIS )
|
|
axis[2] = joy_get_scaled_reading( raw_axis[2], 2 );
|
|
else
|
|
axis[2] = 0;
|
|
|
|
if ( flags & JOY_2_Y_AXIS )
|
|
axis[3] = joy_get_scaled_reading( raw_axis[3], 3 );
|
|
else
|
|
axis[3] = 0;
|
|
|
|
return flags;
|
|
}
|
|
|
|
|
|
int joy_get_btns()
|
|
{
|
|
if ((!joy_installed)||(!joy_present)) return 0;
|
|
|
|
return joy_read_raw_buttons();
|
|
}
|
|
|
|
void joy_get_btn_down_cnt( int *btn0, int *btn1 )
|
|
{
|
|
if ((!joy_installed)||(!joy_present)) { *btn0=*btn1=0; return; }
|
|
|
|
_disable();
|
|
*btn0 = joystick.buttons[0].downcount;
|
|
joystick.buttons[0].downcount = 0;
|
|
*btn1 = joystick.buttons[1].downcount;
|
|
joystick.buttons[1].downcount = 0;
|
|
_enable();
|
|
}
|
|
|
|
int joy_get_button_state( int btn )
|
|
{
|
|
int count;
|
|
|
|
if ((!joy_installed)||(!joy_present)) return 0;
|
|
|
|
if ( btn >= MAX_BUTTONS ) return 0;
|
|
|
|
_disable();
|
|
count = joystick.buttons[btn].state;
|
|
_enable();
|
|
|
|
return count;
|
|
}
|
|
|
|
int joy_get_button_up_cnt( int btn )
|
|
{
|
|
int count;
|
|
|
|
if ((!joy_installed)||(!joy_present)) return 0;
|
|
|
|
if ( btn >= MAX_BUTTONS ) return 0;
|
|
|
|
_disable();
|
|
count = joystick.buttons[btn].upcount;
|
|
joystick.buttons[btn].upcount = 0;
|
|
_enable();
|
|
|
|
return count;
|
|
}
|
|
|
|
int joy_get_button_down_cnt( int btn )
|
|
{
|
|
int count;
|
|
|
|
if ((!joy_installed)||(!joy_present)) return 0;
|
|
if ( btn >= MAX_BUTTONS ) return 0;
|
|
|
|
_disable();
|
|
count = joystick.buttons[btn].downcount;
|
|
joystick.buttons[btn].downcount = 0;
|
|
_enable();
|
|
|
|
return count;
|
|
}
|
|
|
|
|
|
fix joy_get_button_down_time( int btn )
|
|
{
|
|
fix count;
|
|
|
|
if ((!joy_installed)||(!joy_present)) return 0;
|
|
if ( btn >= MAX_BUTTONS ) return 0;
|
|
|
|
_disable();
|
|
count = joystick.buttons[btn].timedown;
|
|
joystick.buttons[btn].timedown = 0;
|
|
_enable();
|
|
|
|
return fixmuldiv(count, 65536, 1193180 );
|
|
}
|
|
|
|
void joy_get_btn_up_cnt( int *btn0, int *btn1 )
|
|
{
|
|
if ((!joy_installed)||(!joy_present)) { *btn0=*btn1=0; return; }
|
|
|
|
_disable();
|
|
*btn0 = joystick.buttons[0].upcount;
|
|
joystick.buttons[0].upcount = 0;
|
|
*btn1 = joystick.buttons[1].upcount;
|
|
joystick.buttons[1].upcount = 0;
|
|
_enable();
|
|
}
|
|
|
|
void joy_set_btn_values( int btn, int state, fix timedown, int downcount, int upcount )
|
|
{
|
|
_disable();
|
|
joystick.buttons[btn].ignore = 1;
|
|
joystick.buttons[btn].state = state;
|
|
joystick.buttons[btn].timedown = fixmuldiv( timedown, 1193180, 65536 );
|
|
joystick.buttons[btn].downcount = downcount;
|
|
joystick.buttons[btn].upcount = upcount;
|
|
_enable();
|
|
}
|
|
|
|
void joy_poll()
|
|
{
|
|
if ( joystick.slow_read & JOY_BIOS_READINGS )
|
|
joystick.last_value = joy_read_buttons_bios();
|
|
}
|