Mercurial > sdl-ios-xcode
annotate src/video/x11/SDL_x11mouse.c @ 1336:3692456e7b0f
Use SDL_ prefixed versions of C library functions.
FIXME:
Change #include <stdlib.h> to #include "SDL_stdlib.h"
Change #include <string.h> to #include "SDL_string.h"
Make sure nothing else broke because of this...
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 07 Feb 2006 06:59:48 +0000 |
| parents | c9b51268668f |
| children | 604d73db6802 |
| 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 */ |
| 22 | |
| 23 #include <stdlib.h> | |
| 24 #include <stdio.h> | |
| 25 #include <string.h> | |
| 26 | |
| 27 #include <X11/Xlib.h> | |
| 28 #include <X11/Xutil.h> | |
| 29 | |
| 30 #include "SDL_error.h" | |
| 31 #include "SDL_mouse.h" | |
| 32 #include "SDL_events_c.h" | |
| 33 #include "SDL_cursor_c.h" | |
| 34 #include "SDL_x11dga_c.h" | |
| 35 #include "SDL_x11mouse_c.h" | |
| 36 | |
| 37 | |
| 38 /* The implementation dependent data for the window manager cursor */ | |
| 39 struct WMcursor { | |
| 40 Cursor x_cursor; | |
| 41 }; | |
| 42 | |
| 43 | |
| 44 void X11_FreeWMCursor(_THIS, WMcursor *cursor) | |
| 45 { | |
| 46 if ( SDL_Display != NULL ) { | |
| 47 SDL_Lock_EventThread(); | |
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48 pXFreeCursor(SDL_Display, cursor->x_cursor); |
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49 pXSync(SDL_Display, False); |
| 0 | 50 SDL_Unlock_EventThread(); |
| 51 } | |
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52 SDL_free(cursor); |
| 0 | 53 } |
| 54 | |
| 55 WMcursor *X11_CreateWMCursor(_THIS, | |
| 56 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y) | |
| 57 { | |
| 58 WMcursor *cursor; | |
| 59 XGCValues GCvalues; | |
| 60 GC GCcursor; | |
| 61 XImage *data_image, *mask_image; | |
| 62 Pixmap data_pixmap, mask_pixmap; | |
| 63 int clen, i; | |
| 64 char *x_data, *x_mask; | |
| 65 static XColor black = { 0, 0, 0, 0 }; | |
| 66 static XColor white = { 0xffff, 0xffff, 0xffff, 0xffff }; | |
| 67 | |
| 68 /* Allocate the cursor memory */ | |
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69 cursor = (WMcursor *)SDL_malloc(sizeof(WMcursor)); |
| 0 | 70 if ( cursor == NULL ) { |
| 71 SDL_OutOfMemory(); | |
| 72 return(NULL); | |
| 73 } | |
| 74 | |
| 75 /* Mix the mask and the data */ | |
| 76 clen = (w/8)*h; | |
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77 x_data = (char *)SDL_malloc(clen); |
| 0 | 78 if ( x_data == NULL ) { |
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79 SDL_free(cursor); |
| 0 | 80 SDL_OutOfMemory(); |
| 81 return(NULL); | |
| 82 } | |
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83 x_mask = (char *)SDL_malloc(clen); |
| 0 | 84 if ( x_mask == NULL ) { |
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85 SDL_free(cursor); |
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86 SDL_free(x_data); |
| 0 | 87 SDL_OutOfMemory(); |
| 88 return(NULL); | |
| 89 } | |
| 90 for ( i=0; i<clen; ++i ) { | |
| 91 /* The mask is OR'd with the data to turn inverted color | |
| 92 pixels black since inverted color cursors aren't supported | |
| 93 under X11. | |
| 94 */ | |
| 95 x_mask[i] = data[i] | mask[i]; | |
| 96 x_data[i] = data[i]; | |
| 97 } | |
| 98 | |
| 99 /* Prevent the event thread from running while we use the X server */ | |
| 100 SDL_Lock_EventThread(); | |
| 101 | |
| 102 /* Create the data image */ | |
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103 data_image = pXCreateImage(SDL_Display, |
| 0 | 104 DefaultVisual(SDL_Display, SDL_Screen), |
| 105 1, XYBitmap, 0, x_data, w, h, 8, w/8); | |
| 106 data_image->byte_order = MSBFirst; | |
| 107 data_image->bitmap_bit_order = MSBFirst; | |
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108 data_pixmap = pXCreatePixmap(SDL_Display, SDL_Root, w, h, 1); |
| 0 | 109 |
| 110 /* Create the data mask */ | |
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111 mask_image = pXCreateImage(SDL_Display, |
| 0 | 112 DefaultVisual(SDL_Display, SDL_Screen), |
| 113 1, XYBitmap, 0, x_mask, w, h, 8, w/8); | |
| 114 mask_image->byte_order = MSBFirst; | |
| 115 mask_image->bitmap_bit_order = MSBFirst; | |
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116 mask_pixmap = pXCreatePixmap(SDL_Display, SDL_Root, w, h, 1); |
| 0 | 117 |
| 118 /* Create the graphics context */ | |
| 119 GCvalues.function = GXcopy; | |
| 120 GCvalues.foreground = ~0; | |
| 121 GCvalues.background = 0; | |
| 122 GCvalues.plane_mask = AllPlanes; | |
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123 GCcursor = pXCreateGC(SDL_Display, data_pixmap, |
| 0 | 124 (GCFunction|GCForeground|GCBackground|GCPlaneMask), |
| 125 &GCvalues); | |
| 126 | |
| 127 /* Blit the images to the pixmaps */ | |
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128 pXPutImage(SDL_Display, data_pixmap, GCcursor, data_image, |
| 0 | 129 0, 0, 0, 0, w, h); |
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130 pXPutImage(SDL_Display, mask_pixmap, GCcursor, mask_image, |
| 0 | 131 0, 0, 0, 0, w, h); |
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132 pXFreeGC(SDL_Display, GCcursor); |
| 0 | 133 /* These free the x_data and x_mask memory pointers */ |
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134 pXDestroyImage(data_image); |
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135 pXDestroyImage(mask_image); |
| 0 | 136 |
| 137 /* Create the cursor */ | |
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138 cursor->x_cursor = pXCreatePixmapCursor(SDL_Display, data_pixmap, |
| 0 | 139 mask_pixmap, &black, &white, hot_x, hot_y); |
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140 pXFreePixmap(SDL_Display, data_pixmap); |
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141 pXFreePixmap(SDL_Display, mask_pixmap); |
| 0 | 142 |
| 143 /* Release the event thread */ | |
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144 pXSync(SDL_Display, False); |
| 0 | 145 SDL_Unlock_EventThread(); |
| 146 | |
| 147 return(cursor); | |
| 148 } | |
| 149 | |
| 150 int X11_ShowWMCursor(_THIS, WMcursor *cursor) | |
| 151 { | |
| 152 /* Don't do anything if the display is gone */ | |
| 153 if ( SDL_Display == NULL ) { | |
| 154 return(0); | |
| 155 } | |
| 156 | |
| 157 /* Set the X11 cursor cursor, or blank if cursor is NULL */ | |
| 158 if ( SDL_Window ) { | |
| 159 SDL_Lock_EventThread(); | |
| 160 if ( cursor == NULL ) { | |
| 161 if ( SDL_BlankCursor != NULL ) { | |
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162 pXDefineCursor(SDL_Display, SDL_Window, |
| 0 | 163 SDL_BlankCursor->x_cursor); |
| 164 } | |
| 165 } else { | |
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166 pXDefineCursor(SDL_Display, SDL_Window, cursor->x_cursor); |
| 0 | 167 } |
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168 pXSync(SDL_Display, False); |
| 0 | 169 SDL_Unlock_EventThread(); |
| 170 } | |
| 171 return(1); | |
| 172 } | |
| 173 | |
| 174 void X11_WarpWMCursor(_THIS, Uint16 x, Uint16 y) | |
| 175 { | |
| 176 if ( using_dga & DGA_MOUSE ) { | |
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177 SDL_PrivateMouseMotion(0, 0, x, y); |
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178 } else if ( mouse_relative) { |
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179 /* RJR: March 28, 2000 |
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180 leave physical cursor at center of screen if |
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181 mouse hidden and grabbed */ |
| 0 | 182 SDL_PrivateMouseMotion(0, 0, x, y); |
| 183 } else { | |
| 184 SDL_Lock_EventThread(); | |
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185 pXWarpPointer(SDL_Display, None, SDL_Window, 0, 0, 0, 0, x, y); |
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186 pXSync(SDL_Display, False); |
| 0 | 187 SDL_Unlock_EventThread(); |
| 188 } | |
| 189 } | |
| 190 | |
| 191 /* Sets the mouse acceleration from a string of the form: | |
| 192 2/1/0 | |
| 193 The first number is the numerator, followed by the acceleration | |
| 194 denumenator and threshold. | |
| 195 */ | |
| 196 static void SetMouseAccel(_THIS, const char *accel_param) | |
| 197 { | |
| 198 int i; | |
| 199 int accel_value[3]; | |
| 200 char *mouse_param, *mouse_param_buf, *pin; | |
| 201 | |
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202 mouse_param_buf = (char *)SDL_malloc(SDL_strlen(accel_param)+1); |
| 0 | 203 if ( ! mouse_param_buf ) { |
| 204 return; | |
| 205 } | |
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206 SDL_strcpy(mouse_param_buf, accel_param); |
| 0 | 207 mouse_param = mouse_param_buf; |
| 208 | |
| 209 for ( i=0; (i < 3) && mouse_param; ++i ) { | |
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210 pin = SDL_strchr(mouse_param, '/'); |
| 0 | 211 if ( pin ) { |
| 212 *pin = '\0'; | |
| 213 } | |
| 214 accel_value[i] = atoi(mouse_param); | |
| 215 if ( pin ) { | |
| 216 mouse_param = pin+1; | |
| 217 } else { | |
| 218 mouse_param = NULL; | |
| 219 } | |
| 220 } | |
| 221 if ( mouse_param_buf ) { | |
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222 pXChangePointerControl(SDL_Display, True, True, |
| 0 | 223 accel_value[0], accel_value[1], accel_value[2]); |
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224 SDL_free(mouse_param_buf); |
| 0 | 225 } |
| 226 } | |
| 227 | |
| 228 /* Check to see if we need to enter or leave mouse relative mode */ | |
| 229 void X11_CheckMouseModeNoLock(_THIS) | |
| 230 { | |
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231 char *env_override; |
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232 int enable_relative = 1; |
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233 |
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234 /* Allow the user to override the relative mouse mode. |
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235 They almost never want to do this, as it seriously affects |
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236 applications that rely on continuous relative mouse motion. |
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237 */ |
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238 env_override = SDL_getenv("SDL_MOUSE_RELATIVE"); |
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239 if ( env_override ) { |
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240 enable_relative = atoi(env_override); |
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241 } |
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242 |
| 0 | 243 /* If the mouse is hidden and input is grabbed, we use relative mode */ |
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244 if ( enable_relative && |
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245 !(SDL_cursorstate & CURSOR_VISIBLE) && |
| 0 | 246 (this->input_grab != SDL_GRAB_OFF) && |
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247 (SDL_GetAppState() & SDL_APPACTIVE) ) { |
| 0 | 248 if ( ! mouse_relative ) { |
| 249 X11_EnableDGAMouse(this); | |
| 250 if ( ! (using_dga & DGA_MOUSE) ) { | |
| 251 char *xmouse_accel; | |
| 252 | |
| 253 SDL_GetMouseState(&mouse_last.x, &mouse_last.y); | |
| 254 /* Use as raw mouse mickeys as possible */ | |
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255 pXGetPointerControl(SDL_Display, |
| 0 | 256 &mouse_accel.numerator, |
| 257 &mouse_accel.denominator, | |
| 258 &mouse_accel.threshold); | |
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259 xmouse_accel=SDL_getenv("SDL_VIDEO_X11_MOUSEACCEL"); |
| 0 | 260 if ( xmouse_accel ) { |
| 261 SetMouseAccel(this, xmouse_accel); | |
| 262 } | |
| 263 } | |
| 264 mouse_relative = 1; | |
| 265 } | |
| 266 } else { | |
| 267 if ( mouse_relative ) { | |
| 268 if ( using_dga & DGA_MOUSE ) { | |
| 269 X11_DisableDGAMouse(this); | |
| 270 } else { | |
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271 pXChangePointerControl(SDL_Display, True, True, |
| 0 | 272 mouse_accel.numerator, |
| 273 mouse_accel.denominator, | |
| 274 mouse_accel.threshold); | |
| 275 } | |
| 276 mouse_relative = 0; | |
| 277 } | |
| 278 } | |
| 279 } | |
| 280 void X11_CheckMouseMode(_THIS) | |
| 281 { | |
| 282 SDL_Lock_EventThread(); | |
| 283 X11_CheckMouseModeNoLock(this); | |
| 284 SDL_Unlock_EventThread(); | |
| 285 } |