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1.1 root 1: /*
2: Hatari
3:
4: Joystick routines
5:
6: NOTE Also the ST uses the joystick port 1 as the default controller
7: - so we allocate our joysticks with index 1 and then 0 so these match.
8: */
9:
10: #include <SDL.h>
11:
12: #include "main.h"
13: #include "configuration.h"
14: #include "debug.h"
15: #include "dialog.h"
16: #include "errlog.h"
17: #include "joy.h"
1.1.1.2 ! root 18: #include "video.h"
1.1 root 19:
1.1.1.2 ! root 20: #define JOY_BUTTON1 1
! 21: #define JOY_BUTTON2 2
1.1 root 22:
1.1.1.2 ! root 23:
! 24: SDL_Joystick *sdlJoystick[2] = { NULL,NULL }; /* SDL's joystick structures */
1.1 root 25: BOOL bJoystickWorking[2] = { FALSE,FALSE }; /* Is joystick plugged in and working? */
26: int JoystickSpaceBar = FALSE; /* State of space-bar on joystick button 2 */
27: int cursorJoyEmu; /* set in view.c */
28:
29:
30: /*-----------------------------------------------------------------------*/
31: /*
32: Initialise joysticks, try to use DirectInput or, if this fails, standard Windows calls
33: */
34: void Joy_Init(void)
35: {
1.1.1.2 ! root 36: int i, nPadsConnected, JoyID=1; /* Store in ST joystick slot 1 then 0 */
! 37:
! 38: /* Scan joystick connection array for first two working joysticks */
! 39: nPadsConnected = SDL_NumJoysticks();
! 40: for(i=0; (i<nPadsConnected) && (JoyID>=0); i++) {
! 41: /* Open the joystick for use */
! 42: sdlJoystick[JoyID] = SDL_JoystickOpen(i);
! 43: /* Is pad ok? */
! 44: if(sdlJoystick[JoyID]!=NULL) {
! 45: /* Set as working (NOTE we assign ST joysticks 1 first), and store ID */
! 46: ErrLog_File("Joystick: %d found\n", JoyID);
! 47: bJoystickWorking[JoyID] = TRUE;
! 48: JoyID--;
! 49: }
! 50: }
! 51:
1.1 root 52:
53: /* OK, do we have any working joysticks? */
54: if (!bJoystickWorking[1]) {
55: /* No, so if first time install need to set cursor emulation */
1.1.1.2 ! root 56: if (bFirstTimeInstall)
! 57: ConfigureParams.Joysticks.Joy[1].bCursorEmulation = TRUE;
1.1 root 58: }
59: /* Make sure we only have one in cursor emulation mode */
60: Joy_PreventBothUsingCursorEmulation();
61:
62: JoystickSpaceBar = FALSE;
63: }
64:
65:
1.1.1.2 ! root 66: /*-----------------------------------------------------------------------*/
1.1 root 67: /*
68: Make sure only one joystick is assigned as cursor emulation mode
69: */
70: void Joy_PreventBothUsingCursorEmulation(void)
71: {
72: /* Make sure we cannot have both joysticks assigned as cursor emulation */
73: if (ConfigureParams.Joysticks.Joy[0].bCursorEmulation && ConfigureParams.Joysticks.Joy[0].bCursorEmulation) {
74: ConfigureParams.Joysticks.Joy[0].bCursorEmulation = FALSE;
75: ConfigureParams.Joysticks.Joy[1].bCursorEmulation = TRUE;
76: }
77: }
78:
1.1.1.2 ! root 79:
! 80: /*-----------------------------------------------------------------------*/
1.1 root 81: /*
1.1.1.2 ! root 82: Read details from joystick using SDL calls
! 83: NOTE ID is that of ST (ie 1 is default)
1.1 root 84: */
1.1.1.2 ! root 85: BOOL Joy_ReadJoystick(int JoystickID, JOYREADING *pJoyReading)
1.1 root 86: {
1.1.1.2 ! root 87: /* Joystick is OK, read position */
! 88: pJoyReading->XPos = SDL_JoystickGetAxis(sdlJoystick[JoystickID], 0);
! 89: pJoyReading->YPos = SDL_JoystickGetAxis(sdlJoystick[JoystickID], 1);
! 90: /* Sets bit #0 if button #1 is pressed: */
! 91: pJoyReading->Buttons = SDL_JoystickGetButton(sdlJoystick[JoystickID], 0);
! 92: /* Sets bit #1 if button #2 is pressed: */
! 93: if( SDL_JoystickGetButton(sdlJoystick[JoystickID], 1) )
! 94: pJoyReading->Buttons |= JOY_BUTTON2;
1.1 root 95:
1.1.1.2 ! root 96: return(TRUE);
1.1 root 97: }
98:
1.1.1.2 ! root 99:
! 100: /*-----------------------------------------------------------------------*/
1.1 root 101: /*
102: Read PC joystick and return ST format byte, ie lower 4 bits direction and top bit fire
1.1.1.2 ! root 103: NOTE : ID 0 is Joystick 0/Mouse and ID 1 is Joystick 1 (default)
1.1 root 104: */
105: unsigned char Joy_GetStickData(unsigned int JoystickID)
106: {
107: unsigned char Data = 0;
108:
1.1.1.2 ! root 109: JOYREADING JoyReading;
1.1 root 110:
111: /* Are we emulating the joystick via the cursor key? */
112: if (ConfigureParams.Joysticks.Joy[JoystickID].bCursorEmulation) {
113: /* If holding 'SHIFT' we actually want cursor key movement, so ignore any of this */
1.1.1.2 ! root 114: if ( !(SDL_GetModState()&(KMOD_LSHIFT|KMOD_RSHIFT)) ) {
! 115: Data = cursorJoyEmu; /* cursorJoyEmu is set in keymap.c */
! 116: }
1.1 root 117: }
118: else if (bJoystickWorking[JoystickID]) {
1.1.1.2 ! root 119: if (!Joy_ReadJoystick(JoystickID,&JoyReading)) {
! 120: /* Something is wrong, we cannot read the joystick */
! 121: bJoystickWorking[JoystickID] = FALSE;
1.1 root 122: }
123:
1.1.1.2 ! root 124: /* So, did read joysyick OK? */
1.1 root 125: if (bJoystickWorking[JoystickID]) {
1.1.1.2 ! root 126: /* Directions */
1.1 root 127: if (JoyReading.YPos<=JOYRANGE_UP_VALUE)
128: Data |= 0x01;
129: if (JoyReading.YPos>=JOYRANGE_DOWN_VALUE)
130: Data |= 0x02;
131: if (JoyReading.XPos<=JOYRANGE_LEFT_VALUE)
132: Data |= 0x04;
133: if (JoyReading.XPos>=JOYRANGE_RIGHT_VALUE)
134: Data |= 0x08;
135:
1.1.1.2 ! root 136: /* Buttons - I've made fire button 2 to simulate the pressing of the space bar (for Xenon II etc...) */
1.1 root 137: #ifdef USE_FIREBUTTON_2_AS_SPACE
1.1.1.2 ! root 138: /* PC Joystick button 1 is set as ST joystick button and PC button 2 is the space bar */
1.1 root 139: if (JoyReading.Buttons&JOY_BUTTON1)
140: Data |= 0x80;
141: if (JoyReading.Buttons&JOY_BUTTON2) {
1.1.1.2 ! root 142: /* Only press 'space bar' if not in NULL state */
1.1 root 143: if (!JoystickSpaceBar) {
1.1.1.2 ! root 144: /* Press, ikbd will send packets and de-press */
1.1 root 145: JoystickSpaceBar = JOYSTICK_SPACE_DOWN;
146: }
147: }
1.1.1.2 ! root 148: #else /*USE_FIREBUTTON_2_AS_SPACE*/
! 149: /* PC Joystick buttons 1+2 are set as ST joystick button */
1.1 root 150: if ( (JoyReading.Buttons&JOY_BUTTON1) || (JoyReading.Buttons&JOY_BUTTON2) )
151: Data |= 0x80;
1.1.1.2 ! root 152: #endif /*USE_FIREBUTTON_2_AS_SPACE*/
1.1 root 153: }
154: }
155:
1.1.1.2 ! root 156: /* Ignore fire button every 8 frames if enabled autofire (for both cursor emulation and joystick) */
1.1 root 157: if (ConfigureParams.Joysticks.Joy[JoystickID].bEnableAutoFire) {
158: if ((VBLCounter&0x7)<4)
1.1.1.2 ! root 159: Data &= 0x7f; /* Remove top bit! */
1.1 root 160: }
1.1.1.2 ! root 161:
1.1 root 162: return(Data);
163: }
164:
1.1.1.2 ! root 165:
! 166: /*-----------------------------------------------------------------------*/
1.1 root 167: /*
168: Toggle cursor emulation
169: */
170: void Joy_ToggleCursorEmulation(void)
171: {
1.1.1.2 ! root 172: /* Toggle joystick 1 cursor emulation */
1.1 root 173: ConfigureParams.Joysticks.Joy[1].bCursorEmulation ^= TRUE;
1.1.1.2 ! root 174: /* Prevent both having emulation */
1.1 root 175: Joy_PreventBothUsingCursorEmulation();
176: }
1.1.1.2 ! root 177:
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