Mercurial > sdl-ios-xcode
annotate src/video/x11/SDL_x11video.h @ 1614:6162b8d921ce
Date: Wed, 29 Mar 2006 17:26:55 +0200 CEST
From: "Fran���is Revol"
Subject: [SDL] BeOS port fix: PrintScreen key crashing
It seems the latest SDL crashes when someone hits the PrtScrn key in
ZETA (BeOS R6), somewhere it gets a negative value as key code (or a
big unsigned maybe ?), and uses it as an index in the keysym table...
I'll investigate the cause for the negative value, but it's always
better to check for bounds correctly when indexing a table. The
attached diff fixes it.
Fran���is Revol
--
Software Architect
yellowTAB GmbH
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 31 Mar 2006 06:16:20 +0000 |
| parents | 34cca785be57 |
| children | 14717b52abc0 c2c6ff414ef5 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
|
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6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
|
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 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 | |
|
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13 Lesser General Public License for more details. |
| 0 | 14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
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22 #include "SDL_config.h" |
| 0 | 23 |
| 24 #ifndef _SDL_x11video_h | |
| 25 #define _SDL_x11video_h | |
| 26 | |
| 27 #include <X11/Xlib.h> | |
| 28 #include <X11/Xutil.h> | |
| 29 #include <X11/Xatom.h> | |
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30 |
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31 #include "SDL_mouse.h" |
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32 #include "../SDL_sysvideo.h" |
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33 |
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34 #if SDL_VIDEO_DRIVER_X11_DGAMOUSE |
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35 #include "../Xext/extensions/xf86dga.h" |
| 0 | 36 #endif |
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37 #if SDL_VIDEO_DRIVER_X11_VIDMODE |
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38 #include "../Xext/extensions/xf86vmode.h" |
| 0 | 39 #endif |
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40 #if SDL_VIDEO_DRIVER_X11_XME |
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41 #include "../Xext/extensions/xme.h" |
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42 #endif |
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43 #if SDL_VIDEO_DRIVER_X11_XRANDR |
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44 #include <X11/extensions/Xrandr.h> |
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45 #endif |
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46 |
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47 #include "SDL_x11dyn.h" |
| 0 | 48 |
| 49 /* Hidden "this" pointer for the video functions */ | |
| 50 #define _THIS SDL_VideoDevice *this | |
| 51 | |
| 52 /* Private display data */ | |
| 53 struct SDL_PrivateVideoData { | |
| 54 int local_X11; /* Flag: true if local display */ | |
| 55 Display *X11_Display; /* Used for events and window management */ | |
| 56 Display *GFX_Display; /* Used for graphics and colormap stuff */ | |
| 57 Visual *SDL_Visual; /* The visual used by our window */ | |
| 58 Window WMwindow; /* Input window, managed by window manager */ | |
| 59 Window FSwindow; /* Fullscreen window, completely unmanaged */ | |
| 60 Window SDL_Window; /* Shared by both displays (no X security?) */ | |
| 61 Atom WM_DELETE_WINDOW; /* "close-window" protocol atom */ | |
| 62 WMcursor *BlankCursor; /* The invisible cursor */ | |
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63 XIM X11_IM; /* Used to communicate with the input method (IM) server */ |
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64 XIC X11_IC; /* Used for retaining the state, properties, and semantics of communication with the input method (IM) server */ |
| 0 | 65 |
| 66 char *SDL_windowid; /* Flag: true if we have been passed a window */ | |
| 67 | |
| 68 /* Direct Graphics Access extension information */ | |
| 69 int using_dga; | |
| 70 | |
| 71 #ifndef NO_SHARED_MEMORY | |
| 72 /* MIT shared memory extension information */ | |
| 73 int use_mitshm; | |
| 74 XShmSegmentInfo shminfo; | |
| 75 #endif | |
| 76 | |
| 77 /* The variables used for displaying graphics */ | |
| 78 XImage *Ximage; /* The X image for our window */ | |
| 79 GC gc; /* The graphic context for drawing */ | |
| 80 | |
| 81 /* The current width and height of the fullscreen mode */ | |
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82 int window_w; |
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83 int window_h; |
| 0 | 84 |
| 85 /* Support for internal mouse warping */ | |
| 86 struct { | |
| 87 int x; | |
| 88 int y; | |
| 89 } mouse_last; | |
| 90 struct { | |
| 91 int numerator; | |
| 92 int denominator; | |
| 93 int threshold; | |
| 94 } mouse_accel; | |
| 95 int mouse_relative; | |
| 96 | |
| 97 /* The current list of available video modes */ | |
| 98 SDL_Rect **modelist; | |
| 99 | |
| 100 /* available visuals of interest to us, sorted deepest first */ | |
| 101 struct { | |
| 102 Visual *visual; | |
| 103 int depth; /* number of significant bits/pixel */ | |
| 104 int bpp; /* pixel quantum in bits */ | |
| 105 } visuals[2*5]; /* at most 2 entries for 8, 15, 16, 24, 32 */ | |
| 106 int nvisuals; | |
| 107 | |
| 108 Visual *vis; /* current visual in use */ | |
| 109 int depth; /* current visual depth (not bpp) */ | |
| 110 | |
| 111 /* Variables used by the X11 video mode code */ | |
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112 #if SDL_VIDEO_DRIVER_X11_VIDMODE |
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113 SDL_NAME(XF86VidModeModeInfo) saved_mode; |
| 0 | 114 struct { |
| 115 int x, y; | |
| 116 } saved_view; | |
| 117 #endif | |
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118 #if SDL_VIDEO_DRIVER_X11_XME /* XiG XME fullscreen */ |
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119 int use_xme; |
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120 XiGMiscResolutionInfo saved_res; |
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121 #endif |
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122 #if SDL_VIDEO_DRIVER_X11_XRANDR |
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123 XRRScreenConfiguration* screen_config; |
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124 int saved_size_id; |
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125 Rotation saved_rotation; |
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126 #endif |
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127 |
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128 int xinerama_x; |
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129 int xinerama_y; |
| 0 | 130 int use_vidmode; |
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131 int use_xrandr; |
| 0 | 132 int currently_fullscreen; |
| 133 | |
| 134 /* Automatic mode switching support (entering/leaving fullscreen) */ | |
| 135 Uint32 switch_waiting; | |
| 136 Uint32 switch_time; | |
| 137 | |
| 138 /* Prevent too many XSync() calls */ | |
| 139 int blit_queued; | |
| 140 | |
| 141 /* Colormap handling */ | |
| 142 Colormap DisplayColormap; /* The default display colormap */ | |
| 143 Colormap XColorMap; /* The current window colormap */ | |
| 144 int *XPixels; /* pixels value allocation counts */ | |
| 145 float gamma_saved[3]; /* Saved gamma values for VidMode gamma */ | |
| 146 int gamma_changed; /* flag: has VidMode gamma been modified? */ | |
| 147 | |
| 148 short *iconcolors; /* List of colors used by the icon */ | |
| 149 }; | |
| 150 | |
| 151 /* Old variable names */ | |
| 152 #define local_X11 (this->hidden->local_X11) | |
| 153 #define SDL_Display (this->hidden->X11_Display) | |
| 154 #define GFX_Display (this->hidden->GFX_Display) | |
| 155 #define SDL_Screen DefaultScreen(this->hidden->X11_Display) | |
| 156 #define SDL_Visual (this->hidden->vis) | |
| 157 #define SDL_Root RootWindow(SDL_Display, SDL_Screen) | |
| 158 #define WMwindow (this->hidden->WMwindow) | |
| 159 #define FSwindow (this->hidden->FSwindow) | |
| 160 #define SDL_Window (this->hidden->SDL_Window) | |
| 161 #define WM_DELETE_WINDOW (this->hidden->WM_DELETE_WINDOW) | |
| 162 #define SDL_BlankCursor (this->hidden->BlankCursor) | |
| 1327 | 163 #define SDL_IM (this->hidden->X11_IM) |
| 164 #define SDL_IC (this->hidden->X11_IC) | |
| 0 | 165 #define SDL_windowid (this->hidden->SDL_windowid) |
| 166 #define using_dga (this->hidden->using_dga) | |
| 167 #define use_mitshm (this->hidden->use_mitshm) | |
| 168 #define shminfo (this->hidden->shminfo) | |
| 169 #define SDL_Ximage (this->hidden->Ximage) | |
| 170 #define SDL_GC (this->hidden->gc) | |
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171 #define window_w (this->hidden->window_w) |
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172 #define window_h (this->hidden->window_h) |
| 0 | 173 #define mouse_last (this->hidden->mouse_last) |
| 174 #define mouse_accel (this->hidden->mouse_accel) | |
| 175 #define mouse_relative (this->hidden->mouse_relative) | |
| 176 #define SDL_modelist (this->hidden->modelist) | |
| 177 #define saved_mode (this->hidden->saved_mode) | |
| 178 #define saved_view (this->hidden->saved_view) | |
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179 #define use_xme (this->hidden->use_xme) |
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180 #define saved_res (this->hidden->saved_res) |
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181 #define use_xrandr (this->hidden->use_xrandr) |
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182 #define screen_config (this->hidden->screen_config) |
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183 #define saved_size_id (this->hidden->saved_size_id) |
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184 #define saved_rotation (this->hidden->saved_rotation) |
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185 #define xinerama_x (this->hidden->xinerama_x) |
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186 #define xinerama_y (this->hidden->xinerama_y) |
| 0 | 187 #define use_vidmode (this->hidden->use_vidmode) |
| 188 #define currently_fullscreen (this->hidden->currently_fullscreen) | |
| 189 #define switch_waiting (this->hidden->switch_waiting) | |
| 190 #define switch_time (this->hidden->switch_time) | |
| 191 #define blit_queued (this->hidden->blit_queued) | |
| 192 #define SDL_DisplayColormap (this->hidden->DisplayColormap) | |
| 193 #define SDL_PrivateColormap (this->hidden->PrivateColormap) | |
| 194 #define SDL_XColorMap (this->hidden->XColorMap) | |
| 195 #define SDL_XPixels (this->hidden->XPixels) | |
| 196 #define gamma_saved (this->hidden->gamma_saved) | |
| 197 #define gamma_changed (this->hidden->gamma_changed) | |
| 198 #define SDL_iconcolors (this->hidden->iconcolors) | |
| 199 /* Some versions of XFree86 have bugs - detect if this is one of them */ | |
| 200 #define BUGGY_XFREE86(condition, buggy_version) \ | |
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201 ((SDL_strcmp(ServerVendor(SDL_Display), "The XFree86 Project, Inc") == 0) && \ |
| 0 | 202 (VendorRelease(SDL_Display) condition buggy_version)) |
| 203 | |
| 204 #endif /* _SDL_x11video_h */ |