Mercurial > sdl-ios-xcode
annotate src/video/wincommon/SDL_sysmouse.c @ 934:af585d6efec8
Date: Thu, 17 Jun 2004 11:38:51 -0700 (PDT)
From: Eric Wing <ewing2121@yahoo.com>
Subject: New OS X patch (was Re: [SDL] Bug with inverted mouse coordinates in
I have a new patch for OS X I would like to submit.
First, it appears no further action has been taken on
my fix from Apple on the OpenGL windowed mode mouse
inversion problem. The fix would reunify the code, and
no longer require case checking for which version of
the OS you are running. This is probably a good fix
because the behavior with the old code could change
again with future versions of the OS, so those fixes
are included in this new patch.
But in addition, when I was at Apple, I asked them
about the ability to distinguish between the modifier
keys on the left and right sides of the keyboard (e.g.
Left Shift, Right Shift, Left/Right Alt, L/R Cmd, L/R
Ctrl). They told me that starting with Panther, the OS
began supporting this feature. This has always been a
source of annoyance for me when bringing a program
that comes from Windows or Linux to OS X when the
keybindings happened to need distinguishable left-side
and right-side keys. So the rest of the patch I am
submitting contains new code to support this feature
on Panther (and presumably later versions of the OS).
So after removing the OS version checks for the mouse
inversion problem, I reused the OS version checks to
activate the Left/Right detection of modifier keys. If
you are running Panther (or above), the new code will
attempt to distinguish between sides. For the older
OS's, the code path reverts to the original code.
I've tested with Panther on a G4 Cube, G5 dual
processor, and Powerbook Rev C. The Cube and G5
keyboards demonstrated the ability to distinguish
between sides. The Powerbook seems to only have
left-side keys, but the patch was still able to handle
it by producing the same results as before the patch.
I also wanted to test a non-Apple keyboard.
Unfortunately, I don't have any PC USB keyboards.
However, I was able to borrow a Sun Microsystems USB
keyboard, so I tried that out on the G5, and I got the
correct behavior for left and right sides. I'm
expecting that if it worked with a Sun keyboard, most
other keyboards should work with no problems.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 20 Aug 2004 22:35:23 +0000 |
| parents | 5c74ac147358 |
| children | 86d0d01290ea |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
| 3 Copyright (C) 1997, 1998, 1999 Sam Lantinga | |
| 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 | |
|
252
e8157fcb3114
Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 #include <stdlib.h> | |
| 29 #include <windows.h> | |
| 30 | |
| 31 #include "SDL_error.h" | |
| 32 #include "SDL_mouse.h" | |
| 33 #include "SDL_sysmouse_c.h" | |
| 34 #include "SDL_events_c.h" | |
| 35 #include "SDL_cursor_c.h" | |
| 36 #include "SDL_lowvideo.h" | |
| 37 | |
| 38 #ifdef _WIN32_WCE | |
| 39 #define USE_STATIC_CURSOR | |
| 40 #endif | |
| 41 | |
| 42 HCURSOR SDL_hcursor = NULL; /* Exported for SDL_eventloop.c */ | |
| 43 | |
| 44 /* The implementation dependent data for the window manager cursor */ | |
| 45 /* For some reason when creating a windows cursor, the ands and xors memory | |
| 46 is not copied, so we need to keep track of it and free it when we are done | |
| 47 with the cursor. If we free the memory prematurely, the app crashes. :-} | |
| 48 */ | |
| 49 struct WMcursor { | |
| 50 HCURSOR curs; | |
| 51 #ifndef USE_STATIC_CURSOR | |
| 52 Uint8 *ands; | |
| 53 Uint8 *xors; | |
| 54 #endif | |
| 55 }; | |
| 56 | |
| 57 /* Convert bits to padded bytes */ | |
| 58 #define PAD_BITS(bits) ((bits+7)/8) | |
| 59 | |
| 60 #ifdef CURSOR_DEBUG | |
| 61 static void PrintBITMAP(FILE *out, char *bits, int w, int h) | |
| 62 { | |
| 63 int i; | |
| 64 unsigned char ch; | |
| 65 | |
| 66 while ( h-- > 0 ) { | |
| 67 for ( i=0; i<w; ++i ) { | |
| 68 if ( (i%8) == 0 ) | |
| 69 ch = *bits++; | |
| 70 if ( ch&0x80 ) | |
| 71 fprintf(out, "X"); | |
| 72 else | |
| 73 fprintf(out, " "); | |
| 74 ch <<= 1; | |
| 75 } | |
| 76 fprintf(out, "\n"); | |
| 77 } | |
| 78 } | |
| 79 #endif | |
| 80 | |
| 81 #ifndef USE_STATIC_CURSOR | |
| 82 /* Local functions to convert the SDL cursor mask into Windows format */ | |
| 83 static void memnot(Uint8 *dst, Uint8 *src, int len) | |
| 84 { | |
| 85 while ( len-- > 0 ) | |
| 86 *dst++ = ~*src++; | |
| 87 } | |
| 88 static void memxor(Uint8 *dst, Uint8 *src1, Uint8 *src2, int len) | |
| 89 { | |
| 90 while ( len-- > 0 ) | |
| 91 *dst++ = (*src1++)^(*src2++); | |
| 92 } | |
| 93 #endif /* !USE_STATIC_CURSOR */ | |
| 94 | |
| 95 void WIN_FreeWMCursor(_THIS, WMcursor *cursor) | |
| 96 { | |
| 97 #ifndef USE_STATIC_CURSOR | |
|
506
f097dba83975
Fixed cursor resource leak in Windows (thanks Huib-Jan Imbens!)
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
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98 if ( cursor->curs == GetCursor() ) |
|
f097dba83975
Fixed cursor resource leak in Windows (thanks Huib-Jan Imbens!)
Sam Lantinga <slouken@libsdl.org>
parents:
252
diff
changeset
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99 SetCursor(NULL); |
| 0 | 100 if ( cursor->curs != NULL ) |
| 101 DestroyCursor(cursor->curs); | |
| 102 if ( cursor->ands != NULL ) | |
| 103 free(cursor->ands); | |
| 104 if ( cursor->xors != NULL ) | |
| 105 free(cursor->xors); | |
| 106 #endif /* !USE_STATIC_CURSOR */ | |
| 107 free(cursor); | |
| 108 } | |
| 109 | |
| 110 WMcursor *WIN_CreateWMCursor(_THIS, | |
| 111 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y) | |
| 112 { | |
| 113 #ifdef USE_STATIC_CURSOR | |
| 114 WMcursor *cursor; | |
| 115 | |
| 116 /* Allocate the cursor */ | |
| 117 cursor = (WMcursor *)malloc(sizeof(*cursor)); | |
| 118 if ( cursor ) { | |
| 119 cursor->curs = LoadCursor(NULL, IDC_ARROW); | |
| 120 } | |
| 121 return(cursor); | |
| 122 #else | |
| 123 WMcursor *cursor; | |
| 124 int allowed_x; | |
| 125 int allowed_y; | |
| 126 int run, pad, i; | |
| 127 Uint8 *aptr, *xptr; | |
| 128 | |
| 129 /* Check to make sure the cursor size is okay */ | |
| 130 allowed_x = GetSystemMetrics(SM_CXCURSOR); | |
| 131 allowed_y = GetSystemMetrics(SM_CYCURSOR); | |
| 132 if ( (w > allowed_x) || (h > allowed_y) ) { | |
| 133 SDL_SetError("Only cursors of dimension (%dx%d) are allowed", | |
| 134 allowed_x, allowed_y); | |
| 135 return(NULL); | |
| 136 } | |
| 137 | |
| 138 /* Allocate the cursor */ | |
| 139 cursor = (WMcursor *)malloc(sizeof(*cursor)); | |
| 140 if ( cursor == NULL ) { | |
| 141 SDL_SetError("Out of memory"); | |
| 142 return(NULL); | |
| 143 } | |
| 144 cursor->curs = NULL; | |
| 145 cursor->ands = NULL; | |
| 146 cursor->xors = NULL; | |
| 147 | |
| 148 /* Pad out to the normal cursor size */ | |
| 149 run = PAD_BITS(w); | |
| 150 pad = PAD_BITS(allowed_x)-run; | |
| 151 aptr = cursor->ands = (Uint8 *)malloc((run+pad)*allowed_y); | |
| 152 xptr = cursor->xors = (Uint8 *)malloc((run+pad)*allowed_y); | |
| 153 if ( (aptr == NULL) || (xptr == NULL) ) { | |
| 154 WIN_FreeWMCursor(NULL, cursor); | |
| 155 SDL_OutOfMemory(); | |
| 156 return(NULL); | |
| 157 } | |
| 158 for ( i=0; i<h; ++i ) { | |
| 159 memxor(xptr, data, mask, run); | |
| 160 xptr += run; | |
| 161 data += run; | |
| 162 memnot(aptr, mask, run); | |
| 163 mask += run; | |
| 164 aptr += run; | |
| 165 memset(xptr, 0, pad); | |
| 166 xptr += pad; | |
| 167 memset(aptr, ~0, pad); | |
| 168 aptr += pad; | |
| 169 } | |
| 170 pad += run; | |
| 171 for ( ; i<allowed_y; ++i ) { | |
| 172 memset(xptr, 0, pad); | |
| 173 xptr += pad; | |
| 174 memset(aptr, ~0, pad); | |
| 175 aptr += pad; | |
| 176 } | |
| 177 | |
| 178 /* Create the cursor */ | |
| 179 cursor->curs = CreateCursor( | |
| 180 (HINSTANCE)GetWindowLong(SDL_Window, GWL_HINSTANCE), | |
| 181 hot_x, hot_y, allowed_x, allowed_y, | |
| 182 cursor->ands, cursor->xors); | |
| 183 if ( cursor->curs == NULL ) { | |
| 184 WIN_FreeWMCursor(NULL, cursor); | |
| 185 SDL_SetError("Windows couldn't create the requested cursor"); | |
| 186 return(NULL); | |
| 187 } | |
| 188 return(cursor); | |
| 189 #endif /* USE_STATIC_CURSOR */ | |
| 190 } | |
| 191 | |
| 192 int WIN_ShowWMCursor(_THIS, WMcursor *cursor) | |
| 193 { | |
| 194 POINT mouse_pos; | |
| 195 | |
| 196 /* The fullscreen cursor must be done in software with DirectInput */ | |
|
13
e30a8ce27c22
Fixed double-mouse event bug on Windows using OpenGL
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
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197 if ( !this->screen || DDRAW_FULLSCREEN() ) { |
| 0 | 198 return(0); |
| 199 } | |
| 200 | |
| 201 /* Set the window cursor to our cursor, if applicable */ | |
| 202 if ( cursor != NULL ) { | |
| 203 SDL_hcursor = cursor->curs; | |
| 204 } else { | |
| 205 SDL_hcursor = NULL; | |
| 206 } | |
| 207 GetCursorPos(&mouse_pos); | |
| 208 if ( PtInRect(&SDL_bounds, mouse_pos) ) { | |
| 209 SetCursor(SDL_hcursor); | |
| 210 } | |
| 211 return(1); | |
| 212 } | |
| 213 | |
| 214 void WIN_WarpWMCursor(_THIS, Uint16 x, Uint16 y) | |
| 215 { | |
|
13
e30a8ce27c22
Fixed double-mouse event bug on Windows using OpenGL
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
216 if ( DDRAW_FULLSCREEN() ) { |
| 0 | 217 SDL_PrivateMouseMotion(0, 0, x, y); |
| 218 } else if ( mouse_relative) { | |
| 219 /* RJR: March 28, 2000 | |
| 220 leave physical cursor at center of screen if | |
| 221 mouse hidden and grabbed */ | |
| 222 SDL_PrivateMouseMotion(0, 0, x, y); | |
| 223 } else { | |
|
527
5c74ac147358
Fixed mouse warp position bug with offset video modes
Sam Lantinga <slouken@libsdl.org>
parents:
506
diff
changeset
|
224 POINT pt; |
| 0 | 225 pt.x = x; |
| 226 pt.y = y; | |
| 227 ClientToScreen(SDL_Window, &pt); | |
| 228 SetCursorPos(pt.x, pt.y); | |
| 229 } | |
| 230 } | |
| 231 | |
| 232 /* Update the current mouse state and position */ | |
| 233 void WIN_UpdateMouse(_THIS) | |
| 234 { | |
| 235 RECT rect; | |
| 236 POINT pt; | |
| 237 | |
|
13
e30a8ce27c22
Fixed double-mouse event bug on Windows using OpenGL
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
238 if ( ! DDRAW_FULLSCREEN() ) { |
| 0 | 239 GetClientRect(SDL_Window, &rect); |
| 240 GetCursorPos(&pt); | |
| 241 MapWindowPoints(NULL, SDL_Window, &pt, 1); | |
| 242 if (PtInRect(&rect, pt) && (WindowFromPoint(pt) == SDL_Window)){ | |
| 243 SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS); | |
| 244 SDL_PrivateMouseMotion(0,0, (Sint16)pt.x, (Sint16)pt.y); | |
| 245 } else { | |
| 246 SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS); | |
| 247 } | |
| 248 } | |
| 249 } | |
| 250 | |
| 251 /* Check to see if we need to enter or leave mouse relative mode */ | |
| 252 void WIN_CheckMouseMode(_THIS) | |
| 253 { | |
| 254 /* If the mouse is hidden and input is grabbed, we use relative mode */ | |
| 255 if ( !(SDL_cursorstate & CURSOR_VISIBLE) && | |
| 256 (this->input_grab != SDL_GRAB_OFF) ) { | |
| 257 mouse_relative = 1; | |
| 258 } else { | |
| 259 mouse_relative = 0; | |
| 260 } | |
| 261 } |