Mercurial > sdl-ios-xcode
annotate src/events/SDL_mouse.c @ 1302:94643e9bad18
Date: Sat, 14 Jan 2006 15:16:01 -0500
From: Andrew Fuller
Subject: [SDL] [PATCH] ML-8866 PS2->USB converter
This converter seems to go by several names -- Super Dual Box, Dual
USB Joypad, and who knows what else. Also branded differently with
different colour cases, etc. But it seems to all be the same
internals. It is a common converter used for StepMania, with several
posts Googleable trying to make it work in Linux. I got mine
yesterday and wanted to play stepmania, so I went ahead and made a
crude patch for libsdl to split this baby into two logical joysticks.
A couple notes about the patch:
This patch works well for two dance mats hooked up and playing
stepmania, however the mapping of the other buttons may be off. I
have no joystick which uses all the buttons the converter reports, so
I have no way of testing them.
The name I used 0925:8866 which is the USB ID, and what SDLjoytest-GL
reported is the name, even though lsusb shows Wisegroup, Ltd MP-8866
Dual USB Joypad, and the existing virtual joystick mapping uses the
Wisegroup... name. Not sure why the discrepency.
I'm not subscribed to this mailing list, so please CC me on any
comments to this.
-Andrew
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 31 Jan 2006 14:59:43 +0000 |
| parents | f214b6fae45a |
| children | c9b51268668f |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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Updated copyright information for 2004 (Happy New Year!)
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3 Copyright (C) 1997-2004 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 /* General mouse handling code for SDL */ | |
| 29 | |
| 30 #include <stdio.h> | |
| 31 #include <stdlib.h> | |
| 32 #include <string.h> | |
| 33 | |
| 34 #include "SDL_events.h" | |
| 35 #include "SDL_events_c.h" | |
| 36 #include "SDL_cursor_c.h" | |
| 37 #include "SDL_sysvideo.h" | |
| 38 | |
| 39 | |
| 40 /* These are static for our mouse handling code */ | |
|
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41 static Sint16 SDL_MouseX = -1; |
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42 static Sint16 SDL_MouseY = -1; |
| 0 | 43 static Sint16 SDL_DeltaX = 0; |
| 44 static Sint16 SDL_DeltaY = 0; | |
| 45 static Uint8 SDL_ButtonState = 0; | |
| 46 | |
| 47 | |
| 48 /* Public functions */ | |
| 49 int SDL_MouseInit(void) | |
| 50 { | |
| 51 /* The mouse is at (0,0) */ | |
|
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52 SDL_MouseX = -1; |
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53 SDL_MouseY = -1; |
| 0 | 54 SDL_DeltaX = 0; |
| 55 SDL_DeltaY = 0; | |
| 56 SDL_ButtonState = 0; | |
| 57 | |
| 58 /* That's it! */ | |
| 59 return(0); | |
| 60 } | |
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61 void SDL_MouseQuit(void) |
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62 { |
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63 } |
| 0 | 64 |
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65 /* We lost the mouse, so post button up messages for all pressed buttons */ |
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66 void SDL_ResetMouse(void) |
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67 { |
| 518 | 68 Uint8 i; |
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69 for ( i = 0; i < sizeof(SDL_ButtonState)*8; ++i ) { |
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70 if ( SDL_ButtonState & SDL_BUTTON(i) ) { |
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71 SDL_PrivateMouseButton(SDL_RELEASED, i, 0, 0); |
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72 } |
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73 } |
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74 } |
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75 |
| 0 | 76 Uint8 SDL_GetMouseState (int *x, int *y) |
| 77 { | |
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78 if ( x ) { |
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79 if ( SDL_MouseX < 0 ) { |
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80 *x = 0; |
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81 } else { |
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82 *x = SDL_MouseX; |
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83 } |
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84 } |
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85 if ( y ) { |
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86 if ( SDL_MouseY < 0 ) { |
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87 *y = 0; |
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88 } else { |
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89 *y = SDL_MouseY; |
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90 } |
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91 } |
| 0 | 92 return(SDL_ButtonState); |
| 93 } | |
| 94 | |
| 95 Uint8 SDL_GetRelativeMouseState (int *x, int *y) | |
| 96 { | |
| 97 if ( x ) | |
| 98 *x = SDL_DeltaX; | |
| 99 if ( y ) | |
| 100 *y = SDL_DeltaY; | |
| 101 SDL_DeltaX = 0; | |
| 102 SDL_DeltaY = 0; | |
| 103 return(SDL_ButtonState); | |
| 104 } | |
| 105 | |
| 106 static void ClipOffset(Sint16 *x, Sint16 *y) | |
| 107 { | |
| 108 /* This clips absolute mouse coordinates when the apparent | |
| 109 display surface is smaller than the real display surface. | |
| 110 */ | |
| 111 if ( SDL_VideoSurface->offset ) { | |
| 112 *y -= SDL_VideoSurface->offset/SDL_VideoSurface->pitch; | |
| 113 *x -= (SDL_VideoSurface->offset%SDL_VideoSurface->pitch)/ | |
| 114 SDL_VideoSurface->format->BytesPerPixel; | |
| 115 } | |
| 116 } | |
| 117 | |
| 118 /* These are global for SDL_eventloop.c */ | |
| 119 int SDL_PrivateMouseMotion(Uint8 buttonstate, int relative, Sint16 x, Sint16 y) | |
| 120 { | |
| 121 int posted; | |
| 122 Uint16 X, Y; | |
| 123 Sint16 Xrel; | |
| 124 Sint16 Yrel; | |
| 125 | |
| 126 /* Don't handle mouse motion if there's no cursor surface */ | |
| 127 if ( SDL_VideoSurface == NULL ) { | |
| 128 return(0); | |
| 129 } | |
| 130 | |
| 131 /* Default buttonstate is the current one */ | |
| 132 if ( ! buttonstate ) { | |
| 133 buttonstate = SDL_ButtonState; | |
| 134 } | |
| 135 | |
| 136 Xrel = x; | |
| 137 Yrel = y; | |
| 138 if ( relative ) { | |
| 139 /* Push the cursor around */ | |
| 140 x = (SDL_MouseX+x); | |
| 141 y = (SDL_MouseY+y); | |
| 142 } else { | |
| 143 /* Do we need to clip {x,y} ? */ | |
| 144 ClipOffset(&x, &y); | |
| 145 } | |
| 146 | |
| 147 /* Mouse coordinates range from 0 - width-1 and 0 - height-1 */ | |
| 148 if ( x < 0 ) | |
| 149 X = 0; | |
| 150 else | |
| 151 if ( x >= SDL_VideoSurface->w ) | |
| 152 X = SDL_VideoSurface->w-1; | |
| 153 else | |
| 154 X = (Uint16)x; | |
| 155 | |
| 156 if ( y < 0 ) | |
| 157 Y = 0; | |
| 158 else | |
| 159 if ( y >= SDL_VideoSurface->h ) | |
| 160 Y = SDL_VideoSurface->h-1; | |
| 161 else | |
| 162 Y = (Uint16)y; | |
| 163 | |
| 164 /* If not relative mode, generate relative motion from clamped X/Y. | |
| 165 This prevents lots of extraneous large delta relative motion when | |
| 166 the screen is windowed mode and the mouse is outside the window. | |
| 167 */ | |
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168 if ( ! relative && SDL_MouseX >= 0 && SDL_MouseY >= 0 ) { |
| 0 | 169 Xrel = X-SDL_MouseX; |
| 170 Yrel = Y-SDL_MouseY; | |
| 171 } | |
| 172 | |
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173 /* Drop events that don't change state */ |
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174 if ( ! Xrel && ! Yrel ) { |
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175 #if 0 |
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176 printf("Mouse event didn't change state - dropped!\n"); |
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177 #endif |
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178 return(0); |
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179 } |
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180 |
| 0 | 181 /* Update internal mouse state */ |
| 182 SDL_ButtonState = buttonstate; | |
| 183 SDL_MouseX = X; | |
| 184 SDL_MouseY = Y; | |
| 185 SDL_DeltaX += Xrel; | |
| 186 SDL_DeltaY += Yrel; | |
| 187 SDL_MoveCursor(SDL_MouseX, SDL_MouseY); | |
| 188 | |
| 189 /* Post the event, if desired */ | |
| 190 posted = 0; | |
| 191 if ( SDL_ProcessEvents[SDL_MOUSEMOTION] == SDL_ENABLE ) { | |
| 192 SDL_Event event; | |
| 193 memset(&event, 0, sizeof(event)); | |
| 194 event.type = SDL_MOUSEMOTION; | |
| 195 event.motion.state = buttonstate; | |
| 196 event.motion.x = X; | |
| 197 event.motion.y = Y; | |
| 198 event.motion.xrel = Xrel; | |
| 199 event.motion.yrel = Yrel; | |
| 200 if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) { | |
| 201 posted = 1; | |
| 202 SDL_PushEvent(&event); | |
| 203 } | |
| 204 } | |
| 205 return(posted); | |
| 206 } | |
| 207 | |
| 208 int SDL_PrivateMouseButton(Uint8 state, Uint8 button, Sint16 x, Sint16 y) | |
| 209 { | |
| 210 SDL_Event event; | |
| 211 int posted; | |
| 212 int move_mouse; | |
| 213 Uint8 buttonstate; | |
| 214 | |
| 215 memset(&event, 0, sizeof(event)); | |
| 216 | |
| 217 /* Check parameters */ | |
| 218 if ( x || y ) { | |
| 219 ClipOffset(&x, &y); | |
| 220 move_mouse = 1; | |
| 221 /* Mouse coordinates range from 0 - width-1 and 0 - height-1 */ | |
| 222 if ( x < 0 ) | |
| 223 x = 0; | |
| 224 else | |
| 225 if ( x >= SDL_VideoSurface->w ) | |
| 226 x = SDL_VideoSurface->w-1; | |
| 227 | |
| 228 if ( y < 0 ) | |
| 229 y = 0; | |
| 230 else | |
| 231 if ( y >= SDL_VideoSurface->h ) | |
| 232 y = SDL_VideoSurface->h-1; | |
| 233 } else { | |
| 234 move_mouse = 0; | |
| 235 } | |
| 236 if ( ! x ) | |
| 237 x = SDL_MouseX; | |
| 238 if ( ! y ) | |
| 239 y = SDL_MouseY; | |
| 240 | |
| 241 /* Figure out which event to perform */ | |
| 242 buttonstate = SDL_ButtonState; | |
| 243 switch ( state ) { | |
| 244 case SDL_PRESSED: | |
| 245 event.type = SDL_MOUSEBUTTONDOWN; | |
| 246 buttonstate |= SDL_BUTTON(button); | |
| 247 break; | |
| 248 case SDL_RELEASED: | |
| 249 event.type = SDL_MOUSEBUTTONUP; | |
| 250 buttonstate &= ~SDL_BUTTON(button); | |
| 251 break; | |
| 252 default: | |
| 253 /* Invalid state -- bail */ | |
| 254 return(0); | |
| 255 } | |
| 256 | |
| 257 /* Update internal mouse state */ | |
| 258 SDL_ButtonState = buttonstate; | |
| 259 if ( move_mouse ) { | |
| 260 SDL_MouseX = x; | |
| 261 SDL_MouseY = y; | |
| 262 SDL_MoveCursor(SDL_MouseX, SDL_MouseY); | |
| 263 } | |
| 264 | |
| 265 /* Post the event, if desired */ | |
| 266 posted = 0; | |
| 267 if ( SDL_ProcessEvents[event.type] == SDL_ENABLE ) { | |
| 268 event.button.state = state; | |
| 269 event.button.button = button; | |
| 270 event.button.x = x; | |
| 271 event.button.y = y; | |
| 272 if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) { | |
| 273 posted = 1; | |
| 274 SDL_PushEvent(&event); | |
| 275 } | |
| 276 } | |
| 277 return(posted); | |
| 278 } | |
| 279 |