X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2Fmswin%2Ffg_joystick_mswin.c;fp=src%2Fmswin%2Ffg_joystick_mswin.c;h=aefa1922c5bb32b809b7a7eeb98cbfeebb923d44;hb=5b3d339481bac6dbaeb599bffc1325f716585bfe;hp=0000000000000000000000000000000000000000;hpb=1b5ee849ba61b667aeba474a7e03406196478bee;p=freeglut diff --git a/src/mswin/fg_joystick_mswin.c b/src/mswin/fg_joystick_mswin.c new file mode 100644 index 0000000..aefa192 --- /dev/null +++ b/src/mswin/fg_joystick_mswin.c @@ -0,0 +1,264 @@ +/* + * freeglut_joystick_mswin.c + * + * The Windows-specific mouse cursor related stuff. + * + * Copyright (c) 2012 Stephen J. Baker. All Rights Reserved. + * Written by John F. Fay, + * Creation date: Sat Jan 28, 2012 + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER + * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#include +#include "../fg_internal.h" + + +#if !defined(_WIN32_WCE) +# include +# include +# include + + + + +void fgPlatformJoystickRawRead( SFG_Joystick* joy, int* buttons, float* axes ) +{ + MMRESULT status; + + status = joyGetPosEx( joy->pJoystick.js_id, &joy->pJoystick.js ); + + if ( status != JOYERR_NOERROR ) + { + joy->error = GL_TRUE; + return; + } + + if ( buttons ) + *buttons = joy->pJoystick.js.dwButtons; + + if ( axes ) + { + /* + * WARNING - Fall through case clauses!! + */ + switch ( joy->num_axes ) + { + case 8: + /* Generate two POV axes from the POV hat angle. + * Low 16 bits of js.dwPOV gives heading (clockwise from ahead) in + * hundredths of a degree, or 0xFFFF when idle. + */ + if ( ( joy->pJoystick.js.dwPOV & 0xFFFF ) == 0xFFFF ) + { + axes [ 6 ] = 0.0; + axes [ 7 ] = 0.0; + } + else + { + /* This is the contentious bit: how to convert angle to X/Y. + * wk: I know of no define for PI that we could use here: + * SG_PI would pull in sg, M_PI is undefined for MSVC + * But the accuracy of the value of PI is very unimportant at + * this point. + */ + float s = (float) sin ( ( joy->pJoystick.js.dwPOV & 0xFFFF ) * ( 0.01 * 3.1415926535f / 180.0f ) ); + float c = (float) cos ( ( joy->pJoystick.js.dwPOV & 0xFFFF ) * ( 0.01 * 3.1415926535f / 180.0f ) ); + + /* Convert to coordinates on a square so that North-East + * is (1,1) not (.7,.7), etc. + * s and c cannot both be zero so we won't divide by zero. + */ + if ( fabs ( s ) < fabs ( c ) ) + { + axes [ 6 ] = ( c < 0.0 ) ? -s/c : s/c ; + axes [ 7 ] = ( c < 0.0 ) ? -1.0f : 1.0f; + } + else + { + axes [ 6 ] = ( s < 0.0 ) ? -1.0f : 1.0f; + axes [ 7 ] = ( s < 0.0 ) ? -c/s : c/s ; + } + } + + case 6: axes[5] = (float) joy->pJoystick.js.dwVpos; + case 5: axes[4] = (float) joy->pJoystick.js.dwUpos; + case 4: axes[3] = (float) joy->pJoystick.js.dwRpos; + case 3: axes[2] = (float) joy->pJoystick.js.dwZpos; + case 2: axes[1] = (float) joy->pJoystick.js.dwYpos; + case 1: axes[0] = (float) joy->pJoystick.js.dwXpos; + } + } +} + + + +/* Inspired by + http://msdn.microsoft.com/archive/en-us/dnargame/html/msdn_sidewind3d.asp + */ +# if FREEGLUT_LIB_PRAGMAS +# pragma comment (lib, "advapi32.lib") +# endif + +static int fghJoystickGetOEMProductName ( SFG_Joystick* joy, char *buf, int buf_sz ) +{ + char buffer [ 256 ]; + + char OEMKey [ 256 ]; + + HKEY hKey; + DWORD dwcb; + LONG lr; + + if ( joy->error ) + return 0; + + /* Open .. MediaResources\CurrentJoystickSettings */ + _snprintf ( buffer, sizeof(buffer), "%s\\%s\\%s", + REGSTR_PATH_JOYCONFIG, joy->pJoystick.jsCaps.szRegKey, + REGSTR_KEY_JOYCURR ); + + lr = RegOpenKeyEx ( HKEY_LOCAL_MACHINE, buffer, 0, KEY_QUERY_VALUE, &hKey); + + if ( lr != ERROR_SUCCESS ) return 0; + + /* Get OEM Key name */ + dwcb = sizeof(OEMKey); + + /* JOYSTICKID1-16 is zero-based; registry entries for VJOYD are 1-based. */ + _snprintf ( buffer, sizeof(buffer), "Joystick%d%s", joy->pJoystick.js_id + 1, REGSTR_VAL_JOYOEMNAME ); + + lr = RegQueryValueEx ( hKey, buffer, 0, 0, (LPBYTE) OEMKey, &dwcb); + RegCloseKey ( hKey ); + + if ( lr != ERROR_SUCCESS ) return 0; + + /* Open OEM Key from ...MediaProperties */ + _snprintf ( buffer, sizeof(buffer), "%s\\%s", REGSTR_PATH_JOYOEM, OEMKey ); + + lr = RegOpenKeyEx ( HKEY_LOCAL_MACHINE, buffer, 0, KEY_QUERY_VALUE, &hKey ); + + if ( lr != ERROR_SUCCESS ) return 0; + + /* Get OEM Name */ + dwcb = buf_sz; + + lr = RegQueryValueEx ( hKey, REGSTR_VAL_JOYOEMNAME, 0, 0, (LPBYTE) buf, + &dwcb ); + RegCloseKey ( hKey ); + + if ( lr != ERROR_SUCCESS ) return 0; + + return 1; +} + + +void fgPlatformJoystickOpen( SFG_Joystick* joy ) +{ + int i = 0; + + joy->pJoystick.js.dwFlags = JOY_RETURNALL; + joy->pJoystick.js.dwSize = sizeof( joy->pJoystick.js ); + + memset( &joy->pJoystick.jsCaps, 0, sizeof( joy->pJoystick.jsCaps ) ); + + joy->error = + ( joyGetDevCaps( joy->pJoystick.js_id, &joy->pJoystick.jsCaps, sizeof( joy->pJoystick.jsCaps ) ) != + JOYERR_NOERROR ); + + if( joy->pJoystick.jsCaps.wNumAxes == 0 ) + { + joy->num_axes = 0; + joy->error = GL_TRUE; + } + else + { + /* Device name from jsCaps is often "Microsoft PC-joystick driver", + * at least for USB. Try to get the real name from the registry. + */ + if ( ! fghJoystickGetOEMProductName( joy, joy->name, + sizeof( joy->name ) ) ) + { + fgWarning( "JS: Failed to read joystick name from registry" ); + strncpy( joy->name, joy->pJoystick.jsCaps.szPname, sizeof( joy->name ) ); + } + + /* Windows joystick drivers may provide any combination of + * X,Y,Z,R,U,V,POV - not necessarily the first n of these. + */ + if( joy->pJoystick.jsCaps.wCaps & JOYCAPS_HASPOV ) + { + joy->num_axes = _JS_MAX_AXES; + joy->min[ 7 ] = -1.0; joy->max[ 7 ] = 1.0; /* POV Y */ + joy->min[ 6 ] = -1.0; joy->max[ 6 ] = 1.0; /* POV X */ + } + else + joy->num_axes = 6; + + joy->min[ 5 ] = ( float )joy->pJoystick.jsCaps.wVmin; + joy->max[ 5 ] = ( float )joy->pJoystick.jsCaps.wVmax; + joy->min[ 4 ] = ( float )joy->pJoystick.jsCaps.wUmin; + joy->max[ 4 ] = ( float )joy->pJoystick.jsCaps.wUmax; + joy->min[ 3 ] = ( float )joy->pJoystick.jsCaps.wRmin; + joy->max[ 3 ] = ( float )joy->pJoystick.jsCaps.wRmax; + joy->min[ 2 ] = ( float )joy->pJoystick.jsCaps.wZmin; + joy->max[ 2 ] = ( float )joy->pJoystick.jsCaps.wZmax; + joy->min[ 1 ] = ( float )joy->pJoystick.jsCaps.wYmin; + joy->max[ 1 ] = ( float )joy->pJoystick.jsCaps.wYmax; + joy->min[ 0 ] = ( float )joy->pJoystick.jsCaps.wXmin; + joy->max[ 0 ] = ( float )joy->pJoystick.jsCaps.wXmax; + } + + /* Guess all the rest judging on the axes extremals */ + for( i = 0; i < joy->num_axes; i++ ) + { + joy->center [ i ] = ( joy->max[ i ] + joy->min[ i ] ) * 0.5f; + joy->dead_band[ i ] = 0.0f; + joy->saturate [ i ] = 1.0f; + } +} + + + +void fgPlatformJoystickInit( SFG_Joystick *fgJoystick[], int ident ) +{ + switch( ident ) + { + case 0: + fgJoystick[ ident ]->pJoystick.js_id = JOYSTICKID1; + fgJoystick[ ident ]->error = GL_FALSE; + break; + case 1: + fgJoystick[ ident ]->pJoystick.js_id = JOYSTICKID2; + fgJoystick[ ident ]->error = GL_FALSE; + break; + default: + fgJoystick[ ident ]->num_axes = 0; + fgJoystick[ ident ]->error = GL_TRUE; + return; + } +} + + + +void fgPlatformJoystickClose ( int ident ) +{ + /* Do nothing special */ +} +#endif +