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