FMudanyali/FreeGLUT-Vita
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Should be entirely superficial changes to code style:

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* Fit lines to 80 columns.  (It does get tiresome seeing long lines
   forced to break by the right-hand border of windows...(^&)
 * Eliminated say-nothing-new comments.
 * Made formatting more consistant in spots.
 * Eliminated some hard TAB characters.


git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@263 7f0cb862-5218-0410-a997-914c9d46530a
This commit is contained in:
rkrolib 2003-10-29 17:44:42 +00:00
parent 126e447121
commit 1b7f3df686
1 changed files with 78 additions and 75 deletions
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153
freeglut/freeglut/src/freeglut_joystick.c
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@ -25,12 +25,13 @@
*/ */
/* /*
* PWO: this is not exactly what Steve Baker has done for PLIB, as I had to convert * PWO: This is not exactly what Steve Baker has done for PLIB, as I had to
* it from C++ to C. And I've also reformatted it a bit (that's my little * convert it from C++ to C. And I've also reformatted it a bit (that's
* personal deviation :]) I don't really know if it is still portable... * my little personal deviation :]) I don't really know if it is still
* portable...
* Steve: could you please add some comments to the code? :) * Steve: could you please add some comments to the code? :)
* *
* FreeBSD port - courtesy of Stephen Montgomery-Smith <stephen@math.missouri.edu> * FreeBSD port by Stephen Montgomery-Smith <stephen@math.missouri.edu>
*/ */
#if defined(__FreeBSD__) || defined(__NetBSD__) #if defined(__FreeBSD__) || defined(__NetBSD__)
@ -85,7 +86,7 @@
# ifndef JS_DATA_TYPE # ifndef JS_DATA_TYPE
/* /*
* Not Windoze and no joystick driver... * Not Windoze and no (known) joystick driver...
* *
* Well - we'll put these values in and that should * Well - we'll put these values in and that should
* allow the code to at least compile. The JS open * allow the code to at least compile. The JS open
@ -197,12 +198,12 @@ static void fghJoystickRawRead ( SFG_Joystick* joy, int* buttons, float* axes )
*/ */
switch( joy->num_axes ) switch( joy->num_axes )
{ {
case 6: axes[5] = (float) joy->js.dwVpos; case 6: axes[5] = (float) joy->js.dwVpos;
case 5: axes[4] = (float) joy->js.dwUpos; case 5: axes[4] = (float) joy->js.dwUpos;
case 4: axes[3] = (float) joy->js.dwRpos; case 4: axes[3] = (float) joy->js.dwRpos;
case 3: axes[2] = (float) joy->js.dwZpos; case 3: axes[2] = (float) joy->js.dwZpos;
case 2: axes[1] = (float) joy->js.dwYpos; case 2: axes[1] = (float) joy->js.dwYpos;
case 1: axes[0] = (float) joy->js.dwXpos; case 1: axes[0] = (float) joy->js.dwXpos;
} }
} }
#else #else
@ -214,40 +215,43 @@ static void fghJoystickRawRead ( SFG_Joystick* joy, int* buttons, float* axes )
if( status != sizeof(struct js_event) ) if( status != sizeof(struct js_event) )
{ {
if( errno == EAGAIN ) if( errno == EAGAIN )
{ {
/* /*
* Use the old values * Use the old values
*/ */
if( buttons ) *buttons = joy->tmp_buttons; if( buttons )
if( axes ) memcpy( axes, joy->tmp_axes, sizeof(float) * joy->num_axes ); *buttons = joy->tmp_buttons;
if( axes )
memcpy( axes, joy->tmp_axes,
sizeof(float) * joy->num_axes );
return; return;
} }
fgWarning( "%s", joy->fname ); fgWarning( "%s", joy->fname );
joy->error = TRUE; joy->error = TRUE;
return; return;
} }
switch( joy->js.type & ~JS_EVENT_INIT ) switch( joy->js.type & ~JS_EVENT_INIT )
{ {
case JS_EVENT_BUTTON: case JS_EVENT_BUTTON:
if ( joy->js.value == 0 ) /* clear the flag */ if ( joy->js.value == 0 ) /* clear the flag */
joy->tmp_buttons &= ~(1 << joy->js.number); joy->tmp_buttons &= ~(1 << joy->js.number);
else else
joy->tmp_buttons |= (1 << joy->js.number); joy->tmp_buttons |= (1 << joy->js.number);
break; break;
case JS_EVENT_AXIS: case JS_EVENT_AXIS:
joy->tmp_axes[ joy->js.number ] = (float) joy->js.value; joy->tmp_axes[ joy->js.number ] = (float) joy->js.value;
if( axes ) if( axes )
memcpy( axes, joy->tmp_axes, sizeof(float) * joy->num_axes ); memcpy( axes, joy->tmp_axes, sizeof(float) * joy->num_axes );
break; break;
} }
if( buttons ) if( buttons )
*buttons = joy->tmp_buttons; *buttons = joy->tmp_buttons;
} }
# else # else
@ -283,29 +287,33 @@ static float fghJoystickFudgeAxis( SFG_Joystick* joy, float value, int axis )
{ {
if( value < joy->center[ axis ] ) if( value < joy->center[ axis ] )
{ {
float xx = (value - joy->center[ axis ]) / (joy->center[ axis ] - joy->min[ axis ]); float xx = (value - joy->center[ axis ]) / (joy->center[ axis ] -
joy->min[ axis ]);
if( xx < -joy->saturate[ axis ] ) if( xx < -joy->saturate[ axis ] )
return( -1.0f ); return( -1.0f );
if( xx > -joy->dead_band [ axis ] ) if( xx > -joy->dead_band [ axis ] )
return( 0.0f ); return( 0.0f );
xx = (xx + joy->dead_band[ axis ]) / (joy->saturate[ axis ] - joy->dead_band[ axis ]); xx = (xx + joy->dead_band[ axis ]) / (joy->saturate[ axis ] -
joy->dead_band[ axis ]);
return( ( xx < -1.0f ) ? -1.0f : xx ); return( ( xx < -1.0f ) ? -1.0f : xx );
} }
else else
{ {
float xx = (value - joy->center [ axis ]) / (joy->max[ axis ] - joy->center[ axis ]); float xx = (value - joy->center [ axis ]) / (joy->max[ axis ] -
joy->center[ axis ]);
if( xx > joy->saturate[ axis ] ) if( xx > joy->saturate[ axis ] )
return 1.0f ; return 1.0f ;
if( xx < joy->dead_band[ axis ] ) if( xx < joy->dead_band[ axis ] )
return 0.0f ; return 0.0f ;
xx = (xx - joy->dead_band[ axis ]) / (joy->saturate[ axis ] - joy->dead_band[ axis ]); xx = (xx - joy->dead_band[ axis ]) / (joy->saturate[ axis ] -
joy->dead_band[ axis ]);
return( ( xx > 1.0f ) ? 1.0f : xx ); return( ( xx > 1.0f ) ? 1.0f : xx );
} }
@ -350,25 +358,43 @@ static void fghJoystickOpen( SFG_Joystick* joy )
memset( &jsCaps, 0, sizeof(jsCaps) ); memset( &jsCaps, 0, sizeof(jsCaps) );
joy->error = (joyGetDevCaps( joy->js_id, &jsCaps, sizeof(jsCaps) ) != JOYERR_NOERROR); joy->error =
joy->num_axes = (jsCaps.wNumAxes < _JS_MAX_AXES ) ? jsCaps.wNumAxes : _JS_MAX_AXES; (joyGetDevCaps( joy->js_id, &jsCaps, sizeof(jsCaps) ) !=
JOYERR_NOERROR);
joy->num_axes =
(jsCaps.wNumAxes < _JS_MAX_AXES ) ? jsCaps.wNumAxes : _JS_MAX_AXES;
/* /*
* WARNING - Fall through case clauses!! * WARNING - Fall through case clauses!!
*/ */
switch( joy->num_axes ) switch( joy->num_axes )
{ {
case 6 : joy->min[ 5 ] = (float) jsCaps.wVmin; joy->max[ 5 ] = (float) jsCaps.wVmax; case 6:
case 5 : joy->min[ 4 ] = (float) jsCaps.wUmin; joy->max[ 4 ] = (float) jsCaps.wUmax; joy->min[ 5 ] = (float) jsCaps.wVmin;
case 4 : joy->min[ 3 ] = (float) jsCaps.wRmin; joy->max[ 3 ] = (float) jsCaps.wRmax; joy->max[ 5 ] = (float) jsCaps.wVmax;
case 3 : joy->min[ 2 ] = (float) jsCaps.wZmin; joy->max[ 2 ] = (float) jsCaps.wZmax; case 5:
case 2 : joy->min[ 1 ] = (float) jsCaps.wYmin; joy->max[ 1 ] = (float) jsCaps.wYmax; joy->min[ 4 ] = (float) jsCaps.wUmin;
case 1 : joy->min[ 0 ] = (float) jsCaps.wXmin; joy->max[ 0 ] = (float) jsCaps.wXmax; break; joy->max[ 4 ] = (float) jsCaps.wUmax;
case 4:
joy->min[ 3 ] = (float) jsCaps.wRmin;
joy->max[ 3 ] = (float) jsCaps.wRmax;
case 3:
joy->min[ 2 ] = (float) jsCaps.wZmin;
joy->max[ 2 ] = (float) jsCaps.wZmax;
case 2:
joy->min[ 1 ] = (float) jsCaps.wYmin;
joy->max[ 1 ] = (float) jsCaps.wYmax;
case 1:
joy->min[ 0 ] = (float) jsCaps.wXmin;
joy->max[ 0 ] = (float) jsCaps.wXmax;
break;
/* /*
* I guess we have no axes at all * I guess we have no axes at all
*/ */
default: joy->error = TRUE; break; default:
joy->error = TRUE;
break;
} }
/* /*
@ -419,7 +445,7 @@ static void fghJoystickOpen( SFG_Joystick* joy )
fghJoystickRawRead(joy, buttons, axes ); fghJoystickRawRead(joy, buttons, axes );
joy->error = axes[ 0 ] < -1000000000.0f; joy->error = axes[ 0 ] < -1000000000.0f;
if( joy->error ) if( joy->error )
return ; return ;
sprintf( joyfname, "%s/.joy%drc", getenv( "HOME" ), joy->id ); sprintf( joyfname, "%s/.joy%drc", getenv( "HOME" ), joy->id );
@ -438,7 +464,7 @@ static void fghJoystickOpen( SFG_Joystick* joy )
joy->error = (noargs != 7) || (in_no_axes != _JS_MAX_AXES); joy->error = (noargs != 7) || (in_no_axes != _JS_MAX_AXES);
fclose( joyfile ); fclose( joyfile );
if( joy->error ) if( joy->error )
return; return;
for( i=0 ; i<_JS_MAX_AXES ; i++ ) for( i=0 ; i<_JS_MAX_AXES ; i++ )
{ {
@ -500,15 +526,9 @@ static void fghJoystickOpen( SFG_Joystick* joy )
*/ */
void fgJoystickInit( int ident ) void fgJoystickInit( int ident )
{ {
/*
* Make sure we don't get reinitialized
*/
if( fgJoystick != NULL ) if( fgJoystick != NULL )
fgError( "illegal attemp to initialize joystick device" ); fgError( "illegal attemp to initialize joystick device" );
/*
* Have the global joystick structure created
*/
fgJoystick = (SFG_Joystick *)calloc( sizeof(SFG_Joystick), 1 ); fgJoystick = (SFG_Joystick *)calloc( sizeof(SFG_Joystick), 1 );
#ifdef WIN32 #ifdef WIN32
@ -527,9 +547,6 @@ void fgJoystickInit( int ident )
sprintf( fgJoystick->fname, "/dev/js%d", ident ); sprintf( fgJoystick->fname, "/dev/js%d", ident );
# endif # endif
/*
* Let's try opening the joystick device now:
*/
fghJoystickOpen( fgJoystick ); fghJoystickOpen( fgJoystick );
#endif #endif
} }
@ -560,21 +577,11 @@ void fgJoystickPollWindow( SFG_Window* window )
float axes[ _JS_MAX_AXES ]; float axes[ _JS_MAX_AXES ];
int buttons; int buttons;
/*
* Make sure the joystick device is initialized, the window seems valid
* and that there is a joystick callback hooked to it:
*/
freeglut_return_if_fail( fgJoystick != NULL && window != NULL ); freeglut_return_if_fail( fgJoystick != NULL && window != NULL );
freeglut_return_if_fail( window->Callbacks.Joystick != NULL ); freeglut_return_if_fail( window->Callbacks.Joystick != NULL );
/*
* Poll the joystick now:
*/
fghJoystickRead( fgJoystick, &buttons, axes ); fghJoystickRead( fgJoystick, &buttons, axes );
/*
* Execute the freeglut joystick callback now
*/
fgSetWindow (window); fgSetWindow (window);
window->Callbacks.Joystick( window->Callbacks.Joystick(
buttons, buttons,
@ -608,7 +615,3 @@ void fgJoystickPollWindow( SFG_Window* window )
#endif #endif
/*** END OF FILE ***/ /*** END OF FILE ***/