Mercurial > sdl-ios-xcode
annotate src/video/x11/SDL_x11mouse.c @ 641:df178851293b
Date: 28 Jun 2003 22:42:52 +0100
From: Alan Swanson
Subject: Re: [SDL] New XFree 4.3 Video Mode Patch
I have a wee amendment that moves the qsort in set_best_resolution
to only occur after failing to find an exact match only. This would
make absolutely sure we get a user set mode.
While I've never had any problems for my normal resolutions (1280x1024,
1024x768, 800x600 & 640,480) while closely examining the output from
qsort I've noticed it doesn't seem to sort the modes fully. These is
one definite wrong at 1152x768 and a few that just look wrong to me.
From a program (attached) I made to examine this more easily. X has
sorted its mode list using the same method as ours (plus frequency),
and our user modes get inserted without any other movement.
On the patch I've made I've also changed cmpmodes to sort on vertical
resolution and then horizontal. Ie vertical is now most significant
bit.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 28 Jun 2003 21:52:26 +0000 |
| parents | 5c74ac147358 |
| children | b8d311d90021 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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Updated copyright information for 2002
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 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 | |
|
252
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Updated the source with the correct e-mail address
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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 #include <stdlib.h> | |
| 29 #include <stdio.h> | |
| 30 #include <string.h> | |
| 31 | |
| 32 #include <X11/Xlib.h> | |
| 33 #include <X11/Xutil.h> | |
| 34 | |
| 35 #include "SDL_error.h" | |
| 36 #include "SDL_mouse.h" | |
| 37 #include "SDL_events_c.h" | |
| 38 #include "SDL_cursor_c.h" | |
| 39 #include "SDL_x11dga_c.h" | |
| 40 #include "SDL_x11mouse_c.h" | |
| 41 | |
| 42 | |
| 43 /* The implementation dependent data for the window manager cursor */ | |
| 44 struct WMcursor { | |
| 45 Cursor x_cursor; | |
| 46 }; | |
| 47 | |
| 48 | |
| 49 void X11_FreeWMCursor(_THIS, WMcursor *cursor) | |
| 50 { | |
| 51 if ( SDL_Display != NULL ) { | |
| 52 SDL_Lock_EventThread(); | |
| 53 XFreeCursor(SDL_Display, cursor->x_cursor); | |
| 54 XSync(SDL_Display, False); | |
| 55 SDL_Unlock_EventThread(); | |
| 56 } | |
| 57 free(cursor); | |
| 58 } | |
| 59 | |
| 60 WMcursor *X11_CreateWMCursor(_THIS, | |
| 61 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y) | |
| 62 { | |
| 63 WMcursor *cursor; | |
| 64 XGCValues GCvalues; | |
| 65 GC GCcursor; | |
| 66 XImage *data_image, *mask_image; | |
| 67 Pixmap data_pixmap, mask_pixmap; | |
| 68 int clen, i; | |
| 69 char *x_data, *x_mask; | |
| 70 static XColor black = { 0, 0, 0, 0 }; | |
| 71 static XColor white = { 0xffff, 0xffff, 0xffff, 0xffff }; | |
| 72 | |
| 73 /* Allocate the cursor memory */ | |
| 74 cursor = (WMcursor *)malloc(sizeof(WMcursor)); | |
| 75 if ( cursor == NULL ) { | |
| 76 SDL_OutOfMemory(); | |
| 77 return(NULL); | |
| 78 } | |
| 79 | |
| 80 /* Mix the mask and the data */ | |
| 81 clen = (w/8)*h; | |
| 82 x_data = (char *)malloc(clen); | |
| 83 if ( x_data == NULL ) { | |
| 84 free(cursor); | |
| 85 SDL_OutOfMemory(); | |
| 86 return(NULL); | |
| 87 } | |
| 88 x_mask = (char *)malloc(clen); | |
| 89 if ( x_mask == NULL ) { | |
| 90 free(cursor); | |
| 91 free(x_data); | |
| 92 SDL_OutOfMemory(); | |
| 93 return(NULL); | |
| 94 } | |
| 95 for ( i=0; i<clen; ++i ) { | |
| 96 /* The mask is OR'd with the data to turn inverted color | |
| 97 pixels black since inverted color cursors aren't supported | |
| 98 under X11. | |
| 99 */ | |
| 100 x_mask[i] = data[i] | mask[i]; | |
| 101 x_data[i] = data[i]; | |
| 102 } | |
| 103 | |
| 104 /* Prevent the event thread from running while we use the X server */ | |
| 105 SDL_Lock_EventThread(); | |
| 106 | |
| 107 /* Create the data image */ | |
| 108 data_image = XCreateImage(SDL_Display, | |
| 109 DefaultVisual(SDL_Display, SDL_Screen), | |
| 110 1, XYBitmap, 0, x_data, w, h, 8, w/8); | |
| 111 data_image->byte_order = MSBFirst; | |
| 112 data_image->bitmap_bit_order = MSBFirst; | |
| 113 data_pixmap = XCreatePixmap(SDL_Display, SDL_Root, w, h, 1); | |
| 114 | |
| 115 /* Create the data mask */ | |
| 116 mask_image = XCreateImage(SDL_Display, | |
| 117 DefaultVisual(SDL_Display, SDL_Screen), | |
| 118 1, XYBitmap, 0, x_mask, w, h, 8, w/8); | |
| 119 mask_image->byte_order = MSBFirst; | |
| 120 mask_image->bitmap_bit_order = MSBFirst; | |
| 121 mask_pixmap = XCreatePixmap(SDL_Display, SDL_Root, w, h, 1); | |
| 122 | |
| 123 /* Create the graphics context */ | |
| 124 GCvalues.function = GXcopy; | |
| 125 GCvalues.foreground = ~0; | |
| 126 GCvalues.background = 0; | |
| 127 GCvalues.plane_mask = AllPlanes; | |
| 128 GCcursor = XCreateGC(SDL_Display, data_pixmap, | |
| 129 (GCFunction|GCForeground|GCBackground|GCPlaneMask), | |
| 130 &GCvalues); | |
| 131 | |
| 132 /* Blit the images to the pixmaps */ | |
| 133 XPutImage(SDL_Display, data_pixmap, GCcursor, data_image, | |
| 134 0, 0, 0, 0, w, h); | |
| 135 XPutImage(SDL_Display, mask_pixmap, GCcursor, mask_image, | |
| 136 0, 0, 0, 0, w, h); | |
| 137 XFreeGC(SDL_Display, GCcursor); | |
| 138 /* These free the x_data and x_mask memory pointers */ | |
| 139 XDestroyImage(data_image); | |
| 140 XDestroyImage(mask_image); | |
| 141 | |
| 142 /* Create the cursor */ | |
| 143 cursor->x_cursor = XCreatePixmapCursor(SDL_Display, data_pixmap, | |
| 144 mask_pixmap, &black, &white, hot_x, hot_y); | |
| 145 | |
| 146 /* Release the event thread */ | |
| 147 XSync(SDL_Display, False); | |
| 148 SDL_Unlock_EventThread(); | |
| 149 | |
| 150 return(cursor); | |
| 151 } | |
| 152 | |
| 153 int X11_ShowWMCursor(_THIS, WMcursor *cursor) | |
| 154 { | |
| 155 /* Don't do anything if the display is gone */ | |
| 156 if ( SDL_Display == NULL ) { | |
| 157 return(0); | |
| 158 } | |
| 159 | |
| 160 /* Set the X11 cursor cursor, or blank if cursor is NULL */ | |
| 161 if ( SDL_Window ) { | |
| 162 SDL_Lock_EventThread(); | |
| 163 if ( cursor == NULL ) { | |
| 164 if ( SDL_BlankCursor != NULL ) { | |
| 165 XDefineCursor(SDL_Display, SDL_Window, | |
| 166 SDL_BlankCursor->x_cursor); | |
| 167 } | |
| 168 } else { | |
| 169 XDefineCursor(SDL_Display, SDL_Window, cursor->x_cursor); | |
| 170 } | |
| 171 XSync(SDL_Display, False); | |
| 172 SDL_Unlock_EventThread(); | |
| 173 } | |
| 174 return(1); | |
| 175 } | |
| 176 | |
| 177 void X11_WarpWMCursor(_THIS, Uint16 x, Uint16 y) | |
| 178 { | |
| 179 if ( using_dga & DGA_MOUSE ) { | |
|
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Fixed mouse warp position bug with offset video modes
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parents:
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changeset
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180 SDL_PrivateMouseMotion(0, 0, x, y); |
|
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parents:
297
diff
changeset
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181 } else if ( mouse_relative) { |
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parents:
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diff
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182 /* RJR: March 28, 2000 |
|
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183 leave physical cursor at center of screen if |
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Fixed mouse warp position bug with offset video modes
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parents:
297
diff
changeset
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184 mouse hidden and grabbed */ |
| 0 | 185 SDL_PrivateMouseMotion(0, 0, x, y); |
| 186 } else { | |
| 187 SDL_Lock_EventThread(); | |
| 188 XWarpPointer(SDL_Display, None, SDL_Window, 0, 0, 0, 0, x, y); | |
| 189 XSync(SDL_Display, False); | |
| 190 SDL_Unlock_EventThread(); | |
| 191 } | |
| 192 } | |
| 193 | |
| 194 /* Sets the mouse acceleration from a string of the form: | |
| 195 2/1/0 | |
| 196 The first number is the numerator, followed by the acceleration | |
| 197 denumenator and threshold. | |
| 198 */ | |
| 199 static void SetMouseAccel(_THIS, const char *accel_param) | |
| 200 { | |
| 201 int i; | |
| 202 int accel_value[3]; | |
| 203 char *mouse_param, *mouse_param_buf, *pin; | |
| 204 | |
| 205 mouse_param_buf = (char *)malloc(strlen(accel_param)+1); | |
| 206 if ( ! mouse_param_buf ) { | |
| 207 return; | |
| 208 } | |
| 209 strcpy(mouse_param_buf, accel_param); | |
| 210 mouse_param = mouse_param_buf; | |
| 211 | |
| 212 for ( i=0; (i < 3) && mouse_param; ++i ) { | |
| 213 pin = strchr(mouse_param, '/'); | |
| 214 if ( pin ) { | |
| 215 *pin = '\0'; | |
| 216 } | |
| 217 accel_value[i] = atoi(mouse_param); | |
| 218 if ( pin ) { | |
| 219 mouse_param = pin+1; | |
| 220 } else { | |
| 221 mouse_param = NULL; | |
| 222 } | |
| 223 } | |
| 224 if ( mouse_param_buf ) { | |
| 225 XChangePointerControl(SDL_Display, True, True, | |
| 226 accel_value[0], accel_value[1], accel_value[2]); | |
| 227 free(mouse_param_buf); | |
| 228 } | |
| 229 } | |
| 230 | |
| 231 /* Check to see if we need to enter or leave mouse relative mode */ | |
| 232 void X11_CheckMouseModeNoLock(_THIS) | |
| 233 { | |
|
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234 char *env_override; |
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235 int enable_relative = 1; |
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236 |
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237 /* Allow the user to override the relative mouse mode. |
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238 They almost never want to do this, as it seriously affects |
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239 applications that rely on continuous relative mouse motion. |
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240 */ |
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241 env_override = getenv("SDL_MOUSE_RELATIVE"); |
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242 if ( env_override ) { |
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243 enable_relative = atoi(env_override); |
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244 } |
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245 |
| 0 | 246 /* If the mouse is hidden and input is grabbed, we use relative mode */ |
|
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parents:
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247 if ( enable_relative && |
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248 !(SDL_cursorstate & CURSOR_VISIBLE) && |
| 0 | 249 (this->input_grab != SDL_GRAB_OFF) && |
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250 (SDL_GetAppState() & SDL_APPACTIVE) ) { |
| 0 | 251 if ( ! mouse_relative ) { |
| 252 X11_EnableDGAMouse(this); | |
| 253 if ( ! (using_dga & DGA_MOUSE) ) { | |
| 254 char *xmouse_accel; | |
| 255 | |
| 256 SDL_GetMouseState(&mouse_last.x, &mouse_last.y); | |
| 257 /* Use as raw mouse mickeys as possible */ | |
| 258 XGetPointerControl(SDL_Display, | |
| 259 &mouse_accel.numerator, | |
| 260 &mouse_accel.denominator, | |
| 261 &mouse_accel.threshold); | |
| 262 xmouse_accel=getenv("SDL_VIDEO_X11_MOUSEACCEL"); | |
| 263 if ( xmouse_accel ) { | |
| 264 SetMouseAccel(this, xmouse_accel); | |
| 265 } | |
| 266 } | |
| 267 mouse_relative = 1; | |
| 268 } | |
| 269 } else { | |
| 270 if ( mouse_relative ) { | |
| 271 if ( using_dga & DGA_MOUSE ) { | |
| 272 X11_DisableDGAMouse(this); | |
| 273 } else { | |
| 274 XChangePointerControl(SDL_Display, True, True, | |
| 275 mouse_accel.numerator, | |
| 276 mouse_accel.denominator, | |
| 277 mouse_accel.threshold); | |
| 278 } | |
| 279 mouse_relative = 0; | |
| 280 } | |
| 281 } | |
| 282 } | |
| 283 void X11_CheckMouseMode(_THIS) | |
| 284 { | |
| 285 SDL_Lock_EventThread(); | |
| 286 X11_CheckMouseModeNoLock(this); | |
| 287 SDL_Unlock_EventThread(); | |
| 288 } |