Mercurial > sdl-ios-xcode
annotate src/video/x11/SDL_x11video.c @ 1319:66f6c64c2c69
Logic bug in X11 Unicode input shutdown...was checking for == NULL
when it should be != NULL.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Wed, 01 Feb 2006 19:59:02 +0000 |
| parents | c9b51268668f |
| children | 1dfc85090d07 |
| 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 /* X11 based SDL video driver implementation. | |
| 24 Note: This implementation does not currently need X11 thread locking, | |
| 25 since the event thread uses a separate X connection and any | |
| 26 additional locking necessary is handled internally. However, | |
| 27 if full locking is neccessary, take a look at XInitThreads(). | |
| 28 */ | |
| 29 | |
| 30 #include <stdlib.h> | |
| 31 #include <stdio.h> | |
| 32 #include <unistd.h> | |
| 33 #include <string.h> | |
| 34 #include <sys/ioctl.h> | |
| 35 #ifdef MTRR_SUPPORT | |
| 36 #include <asm/mtrr.h> | |
| 37 #include <sys/fcntl.h> | |
| 38 #endif | |
| 39 | |
| 40 #ifdef HAVE_ALLOCA_H | |
| 41 #include <alloca.h> | |
| 42 #endif | |
| 43 | |
| 44 #ifdef HAVE_ALLOCA | |
| 45 #define ALLOCA(n) ((void*)alloca(n)) | |
| 46 #define FREEA(p) | |
| 47 #else | |
| 48 #define ALLOCA(n) malloc(n) | |
| 49 #define FREEA(p) free(p) | |
| 50 #endif | |
| 51 | |
| 52 #include "SDL.h" | |
| 53 #include "SDL_error.h" | |
| 54 #include "SDL_timer.h" | |
| 55 #include "SDL_thread.h" | |
| 56 #include "SDL_video.h" | |
| 57 #include "SDL_mouse.h" | |
| 58 #include "SDL_endian.h" | |
| 59 #include "SDL_sysvideo.h" | |
| 60 #include "SDL_pixels_c.h" | |
| 61 #include "SDL_events_c.h" | |
| 62 #include "SDL_x11video.h" | |
| 63 #include "SDL_x11wm_c.h" | |
| 64 #include "SDL_x11mouse_c.h" | |
| 65 #include "SDL_x11events_c.h" | |
| 66 #include "SDL_x11modes_c.h" | |
| 67 #include "SDL_x11image_c.h" | |
| 68 #include "SDL_x11yuv_c.h" | |
| 69 #include "SDL_x11gl_c.h" | |
| 70 #include "SDL_x11gamma_c.h" | |
| 71 #include "blank_cursor.h" | |
| 72 | |
| 73 /* Initialization/Query functions */ | |
| 74 static int X11_VideoInit(_THIS, SDL_PixelFormat *vformat); | |
| 75 static SDL_Surface *X11_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | |
| 76 static int X11_ToggleFullScreen(_THIS, int on); | |
| 77 static void X11_UpdateMouse(_THIS); | |
| 78 static int X11_SetColors(_THIS, int firstcolor, int ncolors, | |
| 79 SDL_Color *colors); | |
| 80 static int X11_SetGammaRamp(_THIS, Uint16 *ramp); | |
| 81 static void X11_VideoQuit(_THIS); | |
| 82 | |
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83 |
| 0 | 84 /* X11 driver bootstrap functions */ |
| 85 | |
| 86 static int X11_Available(void) | |
| 87 { | |
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88 Display *display = NULL; |
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89 if ( SDL_X11_LoadSymbols() ) { |
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90 display = pXOpenDisplay(NULL); |
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91 if ( display != NULL ) { |
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92 pXCloseDisplay(display); |
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93 } |
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94 SDL_X11_UnloadSymbols(); |
| 0 | 95 } |
| 96 return(display != NULL); | |
| 97 } | |
| 98 | |
| 99 static void X11_DeleteDevice(SDL_VideoDevice *device) | |
| 100 { | |
| 101 if ( device ) { | |
| 102 if ( device->hidden ) { | |
| 103 free(device->hidden); | |
| 104 } | |
| 105 if ( device->gl_data ) { | |
| 106 free(device->gl_data); | |
| 107 } | |
| 108 free(device); | |
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109 SDL_X11_UnloadSymbols(); |
| 0 | 110 } |
| 111 } | |
| 112 | |
| 113 static SDL_VideoDevice *X11_CreateDevice(int devindex) | |
| 114 { | |
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115 SDL_VideoDevice *device = NULL; |
| 0 | 116 |
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117 if ( SDL_X11_LoadSymbols() ) { |
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118 /* Initialize all variables that we clean on shutdown */ |
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119 device = (SDL_VideoDevice *)malloc(sizeof(SDL_VideoDevice)); |
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120 if ( device ) { |
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121 memset(device, 0, (sizeof *device)); |
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122 device->hidden = (struct SDL_PrivateVideoData *) |
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123 malloc((sizeof *device->hidden)); |
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124 device->gl_data = (struct SDL_PrivateGLData *) |
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125 malloc((sizeof *device->gl_data)); |
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126 } |
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127 if ( (device == NULL) || (device->hidden == NULL) || |
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128 (device->gl_data == NULL) ) { |
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129 SDL_OutOfMemory(); |
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130 X11_DeleteDevice(device); /* calls SDL_X11_UnloadSymbols(). */ |
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131 return(0); |
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132 } |
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133 memset(device->hidden, 0, (sizeof *device->hidden)); |
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134 memset(device->gl_data, 0, (sizeof *device->gl_data)); |
| 0 | 135 |
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136 /* Set the driver flags */ |
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137 device->handles_any_size = 1; |
| 0 | 138 |
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139 /* Set the function pointers */ |
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140 device->VideoInit = X11_VideoInit; |
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141 device->ListModes = X11_ListModes; |
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142 device->SetVideoMode = X11_SetVideoMode; |
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143 device->ToggleFullScreen = X11_ToggleFullScreen; |
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144 device->UpdateMouse = X11_UpdateMouse; |
| 0 | 145 #ifdef XFREE86_XV |
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146 device->CreateYUVOverlay = X11_CreateYUVOverlay; |
| 0 | 147 #endif |
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148 device->SetColors = X11_SetColors; |
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149 device->UpdateRects = NULL; |
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150 device->VideoQuit = X11_VideoQuit; |
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151 device->AllocHWSurface = X11_AllocHWSurface; |
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152 device->CheckHWBlit = NULL; |
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153 device->FillHWRect = NULL; |
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154 device->SetHWColorKey = NULL; |
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155 device->SetHWAlpha = NULL; |
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156 device->LockHWSurface = X11_LockHWSurface; |
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157 device->UnlockHWSurface = X11_UnlockHWSurface; |
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158 device->FlipHWSurface = X11_FlipHWSurface; |
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159 device->FreeHWSurface = X11_FreeHWSurface; |
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160 device->SetGamma = X11_SetVidModeGamma; |
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161 device->GetGamma = X11_GetVidModeGamma; |
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162 device->SetGammaRamp = X11_SetGammaRamp; |
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163 device->GetGammaRamp = NULL; |
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164 #ifdef HAVE_OPENGL_X11 |
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165 device->GL_LoadLibrary = X11_GL_LoadLibrary; |
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166 device->GL_GetProcAddress = X11_GL_GetProcAddress; |
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167 device->GL_GetAttribute = X11_GL_GetAttribute; |
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168 device->GL_MakeCurrent = X11_GL_MakeCurrent; |
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169 device->GL_SwapBuffers = X11_GL_SwapBuffers; |
| 0 | 170 #endif |
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171 device->SetCaption = X11_SetCaption; |
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172 device->SetIcon = X11_SetIcon; |
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173 device->IconifyWindow = X11_IconifyWindow; |
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174 device->GrabInput = X11_GrabInput; |
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175 device->GetWMInfo = X11_GetWMInfo; |
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176 device->FreeWMCursor = X11_FreeWMCursor; |
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177 device->CreateWMCursor = X11_CreateWMCursor; |
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178 device->ShowWMCursor = X11_ShowWMCursor; |
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179 device->WarpWMCursor = X11_WarpWMCursor; |
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180 device->CheckMouseMode = X11_CheckMouseMode; |
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181 device->InitOSKeymap = X11_InitOSKeymap; |
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182 device->PumpEvents = X11_PumpEvents; |
| 0 | 183 |
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184 device->free = X11_DeleteDevice; |
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185 } |
| 0 | 186 |
| 187 return device; | |
| 188 } | |
| 189 | |
| 190 VideoBootStrap X11_bootstrap = { | |
| 191 "x11", "X Window System", | |
| 192 X11_Available, X11_CreateDevice | |
| 193 }; | |
| 194 | |
| 195 /* Normal X11 error handler routine */ | |
| 196 static int (*X_handler)(Display *, XErrorEvent *) = NULL; | |
| 197 static int x_errhandler(Display *d, XErrorEvent *e) | |
| 198 { | |
| 199 #ifdef XFREE86_VM | |
| 200 extern int vm_error; | |
| 201 #endif | |
| 202 #ifdef XFREE86_DGAMOUSE | |
| 203 extern int dga_error; | |
| 204 #endif | |
| 205 | |
| 206 #ifdef XFREE86_VM | |
| 207 /* VidMode errors are non-fatal. :) */ | |
| 208 /* Are the errors offset by one from the error base? | |
| 209 e.g. the error base is 143, the code is 148, and the | |
| 210 actual error is XF86VidModeExtensionDisabled (4) ? | |
| 211 */ | |
| 212 if ( (vm_error >= 0) && | |
| 213 (((e->error_code == BadRequest)&&(e->request_code == vm_error)) || | |
| 214 ((e->error_code > vm_error) && | |
| 215 (e->error_code <= (vm_error+XF86VidModeNumberErrors)))) ) { | |
| 216 #ifdef XFREE86_DEBUG | |
| 217 { char errmsg[1024]; | |
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218 pXGetErrorText(d, e->error_code, errmsg, sizeof(errmsg)); |
| 0 | 219 printf("VidMode error: %s\n", errmsg); |
| 220 } | |
| 221 #endif | |
| 222 return(0); | |
| 223 } | |
| 224 #endif /* XFREE86_VM */ | |
| 225 | |
| 226 #ifdef XFREE86_DGAMOUSE | |
| 227 /* DGA errors can be non-fatal. :) */ | |
| 228 if ( (dga_error >= 0) && | |
| 229 ((e->error_code > dga_error) && | |
| 230 (e->error_code <= (dga_error+XF86DGANumberErrors))) ) { | |
| 231 #ifdef XFREE86_DEBUG | |
| 232 { char errmsg[1024]; | |
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233 pXGetErrorText(d, e->error_code, errmsg, sizeof(errmsg)); |
| 0 | 234 printf("DGA error: %s\n", errmsg); |
| 235 } | |
| 236 #endif | |
| 237 return(0); | |
| 238 } | |
| 239 #endif /* XFREE86_DGAMOUSE */ | |
| 240 | |
| 241 return(X_handler(d,e)); | |
| 242 } | |
| 243 | |
| 244 /* X11 I/O error handler routine */ | |
| 245 static int (*XIO_handler)(Display *) = NULL; | |
| 246 static int xio_errhandler(Display *d) | |
| 247 { | |
| 248 /* Ack! Lost X11 connection! */ | |
| 249 | |
| 250 /* We will crash if we try to clean up our display */ | |
| 251 if ( current_video->hidden->Ximage ) { | |
| 252 SDL_VideoSurface->pixels = NULL; | |
| 253 } | |
| 254 current_video->hidden->X11_Display = NULL; | |
| 255 | |
| 256 /* Continue with the standard X11 error handler */ | |
| 257 return(XIO_handler(d)); | |
| 258 } | |
| 259 | |
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260 static int (*Xext_handler)(Display *,char *,char *) = NULL; |
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261 static int xext_errhandler(Display *d, char *ext_name, char *reason) |
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262 { |
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263 #ifdef XFREE86_DEBUG |
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264 printf("Xext error inside SDL (may be harmless):\n"); |
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265 printf(" Extension \"%s\" %s on display \"%s\".\n", |
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266 ext_name, reason, pXDisplayString(d)); |
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267 #endif |
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268 |
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269 if (strcmp(reason, "missing") == 0) { |
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270 /* |
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271 * Since the query itself, elsewhere, can handle a missing extension |
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272 * and the default behaviour in Xlib is to write to stderr, which |
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273 * generates unnecessary bug reports, we just ignore these. |
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274 */ |
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275 return 0; |
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276 } |
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277 |
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278 /* Everything else goes to the default handler... */ |
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279 return Xext_handler(d, ext_name, reason); |
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280 } |
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281 |
| 0 | 282 /* Create auxiliary (toplevel) windows with the current visual */ |
| 283 static void create_aux_windows(_THIS) | |
| 284 { | |
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285 char * savedclassname = NULL; |
| 0 | 286 XSetWindowAttributes xattr; |
| 287 XWMHints *hints; | |
| 288 XTextProperty titleprop, iconprop; | |
| 289 int def_vis = (SDL_Visual == DefaultVisual(SDL_Display, SDL_Screen)); | |
| 290 | |
| 291 /* Don't create any extra windows if we are being managed */ | |
| 292 if ( SDL_windowid ) { | |
| 293 FSwindow = 0; | |
| 294 WMwindow = strtol(SDL_windowid, NULL, 0); | |
| 295 return; | |
| 296 } | |
| 297 | |
| 298 if(FSwindow) | |
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299 pXDestroyWindow(SDL_Display, FSwindow); |
| 0 | 300 |
| 301 xattr.override_redirect = True; | |
| 302 xattr.background_pixel = def_vis ? BlackPixel(SDL_Display, SDL_Screen) : 0; | |
| 303 xattr.border_pixel = 0; | |
| 304 xattr.colormap = SDL_XColorMap; | |
| 305 | |
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306 FSwindow = pXCreateWindow(SDL_Display, SDL_Root, |
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307 xinerama_x, xinerama_y, 32, 32, 0, |
| 0 | 308 this->hidden->depth, InputOutput, SDL_Visual, |
| 309 CWOverrideRedirect | CWBackPixel | CWBorderPixel | |
| 310 | CWColormap, | |
| 311 &xattr); | |
| 312 | |
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313 pXSelectInput(SDL_Display, FSwindow, StructureNotifyMask); |
| 0 | 314 |
| 315 /* Tell KDE to keep the fullscreen window on top */ | |
| 316 { | |
| 317 XEvent ev; | |
| 318 long mask; | |
| 319 | |
| 320 memset(&ev, 0, sizeof(ev)); | |
| 321 ev.xclient.type = ClientMessage; | |
| 322 ev.xclient.window = SDL_Root; | |
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323 ev.xclient.message_type = pXInternAtom(SDL_Display, |
| 0 | 324 "KWM_KEEP_ON_TOP", False); |
| 325 ev.xclient.format = 32; | |
| 326 ev.xclient.data.l[0] = FSwindow; | |
| 327 ev.xclient.data.l[1] = CurrentTime; | |
| 328 mask = SubstructureRedirectMask; | |
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329 pXSendEvent(SDL_Display, SDL_Root, False, mask, &ev); |
| 0 | 330 } |
| 331 | |
| 332 hints = NULL; | |
| 333 titleprop.value = iconprop.value = NULL; | |
| 334 if(WMwindow) { | |
| 335 /* All window attributes must survive the recreation */ | |
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336 hints = pXGetWMHints(SDL_Display, WMwindow); |
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337 pXGetWMName(SDL_Display, WMwindow, &titleprop); |
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338 pXGetWMIconName(SDL_Display, WMwindow, &iconprop); |
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339 pXDestroyWindow(SDL_Display, WMwindow); |
| 0 | 340 } |
| 341 | |
| 342 /* Create the window for windowed management */ | |
| 343 /* (reusing the xattr structure above) */ | |
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344 WMwindow = pXCreateWindow(SDL_Display, SDL_Root, 0, 0, 32, 32, 0, |
| 0 | 345 this->hidden->depth, InputOutput, SDL_Visual, |
| 346 CWBackPixel | CWBorderPixel | CWColormap, | |
| 347 &xattr); | |
| 348 | |
| 349 /* Set the input hints so we get keyboard input */ | |
| 350 if(!hints) { | |
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351 hints = pXAllocWMHints(); |
| 0 | 352 hints->input = True; |
| 353 hints->flags = InputHint; | |
| 354 } | |
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355 pXSetWMHints(SDL_Display, WMwindow, hints); |
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356 pXFree(hints); |
| 0 | 357 if(titleprop.value) { |
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358 pXSetWMName(SDL_Display, WMwindow, &titleprop); |
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359 pXFree(titleprop.value); |
| 0 | 360 } |
| 361 if(iconprop.value) { | |
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362 pXSetWMIconName(SDL_Display, WMwindow, &iconprop); |
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363 pXFree(iconprop.value); |
| 0 | 364 } |
| 365 | |
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366 pXSelectInput(SDL_Display, WMwindow, |
| 0 | 367 FocusChangeMask | KeyPressMask | KeyReleaseMask |
| 368 | PropertyChangeMask | StructureNotifyMask | KeymapStateMask); | |
| 369 | |
| 370 /* Set the class hints so we can get an icon (AfterStep) */ | |
| 371 { | |
| 372 XClassHint *classhints; | |
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373 classhints = pXAllocClassHint(); |
| 0 | 374 if(classhints != NULL) { |
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375 char *classname = getenv("SDL_VIDEO_X11_WMCLASS"); |
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376 if ( ! classname ) { |
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377 classname = "SDL_App"; |
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378 } |
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379 savedclassname = strdup(classname); |
|
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380 classhints->res_name = classname; |
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381 classhints->res_class = classname; |
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382 pXSetClassHint(SDL_Display, WMwindow, classhints); |
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383 pXFree(classhints); |
| 0 | 384 } |
| 385 } | |
| 386 | |
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387 /* Setup the communication with the IM server */ |
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388 SDL_IM = NULL; |
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389 SDL_IC = NULL; |
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390 |
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391 #ifdef X_HAVE_UTF8_STRING |
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392 SDL_IM = pXOpenIM(SDL_Display, NULL, savedclassname, savedclassname); |
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393 if (SDL_IM == NULL) { |
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394 SDL_SetError("no input method could be opened"); |
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395 } else { |
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396 SDL_IC = pXCreateIC(SDL_IM, |
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397 XNClientWindow, WMwindow, |
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398 XNFocusWindow, WMwindow, |
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399 XNInputStyle, XIMPreeditNothing | XIMStatusNothing, |
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400 XNResourceName, savedclassname, |
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401 XNResourceClass, savedclassname, |
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402 NULL); |
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403 if (SDL_IC == NULL) { |
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404 SDL_SetError("no input context could be created"); |
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405 pXCloseIM(SDL_IM); |
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406 SDL_IM = NULL; |
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407 } |
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408 } |
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409 #endif |
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410 |
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411 free(savedclassname); |
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412 |
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413 |
| 0 | 414 /* Allow the window to be deleted by the window manager */ |
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415 WM_DELETE_WINDOW = pXInternAtom(SDL_Display, "WM_DELETE_WINDOW", False); |
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416 pXSetWMProtocols(SDL_Display, WMwindow, &WM_DELETE_WINDOW, 1); |
| 0 | 417 } |
| 418 | |
| 419 static int X11_VideoInit(_THIS, SDL_PixelFormat *vformat) | |
| 420 { | |
| 421 char *display; | |
| 422 int i; | |
| 423 | |
| 424 /* Open the X11 display */ | |
| 425 display = NULL; /* Get it from DISPLAY environment variable */ | |
| 426 | |
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427 if ( (strncmp(pXDisplayName(display), ":", 1) == 0) || |
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428 (strncmp(pXDisplayName(display), "unix:", 5) == 0) ) { |
| 0 | 429 local_X11 = 1; |
| 430 } else { | |
| 431 local_X11 = 0; | |
| 432 } | |
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433 SDL_Display = pXOpenDisplay(display); |
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434 #if defined(__osf__) && defined(X11_DYNAMIC) |
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435 /* On Tru64 if linking without -lX11, it fails and you get following message. |
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436 * Xlib: connection to ":0.0" refused by server |
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437 * Xlib: XDM authorization key matches an existing client! |
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438 * |
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439 * It succeeds if retrying 1 second later |
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440 * or if running xhost +localhost on shell. |
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441 * |
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442 */ |
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443 if ( SDL_Display == NULL ) { |
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444 SDL_Delay(1000); |
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445 SDL_Display = pXOpenDisplay(display); |
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446 } |
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447 #endif |
| 0 | 448 if ( SDL_Display == NULL ) { |
| 449 SDL_SetError("Couldn't open X11 display"); | |
| 450 return(-1); | |
| 451 } | |
| 452 #ifdef X11_DEBUG | |
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453 pXSynchronize(SDL_Display, True); |
| 0 | 454 #endif |
| 455 | |
| 456 /* Create an alternate X display for graphics updates -- allows us | |
| 457 to do graphics updates in a separate thread from event handling. | |
| 458 Thread-safe X11 doesn't seem to exist. | |
| 459 */ | |
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460 GFX_Display = pXOpenDisplay(display); |
| 0 | 461 if ( GFX_Display == NULL ) { |
| 462 SDL_SetError("Couldn't open X11 display"); | |
| 463 return(-1); | |
| 464 } | |
| 465 | |
| 466 /* Set the normal X error handler */ | |
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467 X_handler = pXSetErrorHandler(x_errhandler); |
| 0 | 468 |
| 469 /* Set the error handler if we lose the X display */ | |
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470 XIO_handler = pXSetIOErrorHandler(xio_errhandler); |
| 0 | 471 |
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472 /* Set the X extension error handler */ |
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473 Xext_handler = pXSetExtensionErrorHandler(xext_errhandler); |
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474 |
| 0 | 475 /* use default screen (from $DISPLAY) */ |
| 476 SDL_Screen = DefaultScreen(SDL_Display); | |
| 477 | |
| 478 #ifndef NO_SHARED_MEMORY | |
| 479 /* Check for MIT shared memory extension */ | |
|
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480 use_mitshm = 0; |
| 0 | 481 if ( local_X11 ) { |
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482 use_mitshm = pXShmQueryExtension(SDL_Display); |
| 0 | 483 } |
| 484 #endif /* NO_SHARED_MEMORY */ | |
| 485 | |
| 486 /* Get the available video modes */ | |
| 487 if(X11_GetVideoModes(this) < 0) | |
| 488 return -1; | |
| 489 | |
| 490 /* Determine the default screen depth: | |
| 491 Use the default visual (or at least one with the same depth) */ | |
| 492 SDL_DisplayColormap = DefaultColormap(SDL_Display, SDL_Screen); | |
| 493 for(i = 0; i < this->hidden->nvisuals; i++) | |
| 494 if(this->hidden->visuals[i].depth == DefaultDepth(SDL_Display, | |
| 495 SDL_Screen)) | |
| 496 break; | |
| 497 if(i == this->hidden->nvisuals) { | |
| 498 /* default visual was useless, take the deepest one instead */ | |
| 499 i = 0; | |
| 500 } | |
| 501 SDL_Visual = this->hidden->visuals[i].visual; | |
| 502 if ( SDL_Visual == DefaultVisual(SDL_Display, SDL_Screen) ) { | |
| 503 SDL_XColorMap = SDL_DisplayColormap; | |
| 504 } else { | |
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505 SDL_XColorMap = pXCreateColormap(SDL_Display, SDL_Root, |
| 0 | 506 SDL_Visual, AllocNone); |
| 507 } | |
| 508 this->hidden->depth = this->hidden->visuals[i].depth; | |
| 509 vformat->BitsPerPixel = this->hidden->visuals[i].bpp; | |
| 510 if ( vformat->BitsPerPixel > 8 ) { | |
| 511 vformat->Rmask = SDL_Visual->red_mask; | |
| 512 vformat->Gmask = SDL_Visual->green_mask; | |
| 513 vformat->Bmask = SDL_Visual->blue_mask; | |
| 514 } | |
| 515 X11_SaveVidModeGamma(this); | |
| 516 | |
| 517 /* See if we have been passed a window to use */ | |
| 518 SDL_windowid = getenv("SDL_WINDOWID"); | |
| 519 | |
| 520 /* Create the fullscreen and managed windows */ | |
| 521 create_aux_windows(this); | |
| 522 | |
| 523 /* Create the blank cursor */ | |
| 524 SDL_BlankCursor = this->CreateWMCursor(this, blank_cdata, blank_cmask, | |
| 525 BLANK_CWIDTH, BLANK_CHEIGHT, | |
| 526 BLANK_CHOTX, BLANK_CHOTY); | |
| 527 | |
| 528 /* Fill in some window manager capabilities */ | |
| 529 this->info.wm_available = 1; | |
| 530 | |
| 531 /* We're done! */ | |
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532 pXFlush(SDL_Display); |
| 0 | 533 return(0); |
| 534 } | |
| 535 | |
| 536 static void X11_DestroyWindow(_THIS, SDL_Surface *screen) | |
| 537 { | |
| 538 /* Clean up OpenGL */ | |
| 539 if ( screen ) { | |
| 540 screen->flags &= ~(SDL_OPENGL|SDL_OPENGLBLIT); | |
| 541 } | |
| 542 X11_GL_Shutdown(this); | |
| 543 | |
| 544 if ( ! SDL_windowid ) { | |
| 545 /* Hide the managed window */ | |
| 546 if ( WMwindow ) { | |
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547 pXUnmapWindow(SDL_Display, WMwindow); |
| 0 | 548 } |
| 549 if ( screen && (screen->flags & SDL_FULLSCREEN) ) { | |
| 550 screen->flags &= ~SDL_FULLSCREEN; | |
| 551 X11_LeaveFullScreen(this); | |
| 552 } | |
| 553 | |
| 554 /* Destroy the output window */ | |
| 555 if ( SDL_Window ) { | |
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556 pXDestroyWindow(SDL_Display, SDL_Window); |
| 0 | 557 } |
| 558 | |
| 559 /* Free the colormap entries */ | |
| 560 if ( SDL_XPixels ) { | |
| 561 int numcolors; | |
| 562 unsigned long pixel; | |
| 563 numcolors = SDL_Visual->map_entries; | |
| 564 for ( pixel=0; pixel<numcolors; ++pixel ) { | |
| 565 while ( SDL_XPixels[pixel] > 0 ) { | |
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566 pXFreeColors(GFX_Display, |
| 0 | 567 SDL_DisplayColormap,&pixel,1,0); |
| 568 --SDL_XPixels[pixel]; | |
| 569 } | |
| 570 } | |
| 571 free(SDL_XPixels); | |
| 572 SDL_XPixels = NULL; | |
| 573 } | |
| 574 | |
| 575 /* Free the graphics context */ | |
| 576 if ( SDL_GC ) { | |
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577 pXFreeGC(SDL_Display, SDL_GC); |
| 0 | 578 SDL_GC = 0; |
| 579 } | |
| 580 } | |
| 581 } | |
| 582 | |
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583 static SDL_bool X11_WindowPosition(_THIS, int *x, int *y, int w, int h) |
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584 { |
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585 const char *window = getenv("SDL_VIDEO_WINDOW_POS"); |
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586 const char *center = getenv("SDL_VIDEO_CENTERED"); |
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587 if ( window ) { |
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588 if ( sscanf(window, "%d,%d", x, y) == 2 ) { |
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589 return SDL_TRUE; |
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590 } |
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591 if ( strcmp(window, "center") == 0 ) { |
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592 center = window; |
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593 } |
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594 } |
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595 if ( center ) { |
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596 *x = (DisplayWidth(SDL_Display, SDL_Screen) - w)/2; |
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597 *y = (DisplayHeight(SDL_Display, SDL_Screen) - h)/2; |
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598 return SDL_TRUE; |
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599 } |
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600 return SDL_FALSE; |
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601 } |
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602 |
| 0 | 603 static void X11_SetSizeHints(_THIS, int w, int h, Uint32 flags) |
| 604 { | |
| 605 XSizeHints *hints; | |
| 606 | |
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607 hints = pXAllocSizeHints(); |
| 0 | 608 if ( hints ) { |
| 609 if ( flags & SDL_RESIZABLE ) { | |
| 610 hints->min_width = 32; | |
| 611 hints->min_height = 32; | |
| 612 hints->max_height = 4096; | |
| 613 hints->max_width = 4096; | |
| 614 } else { | |
| 615 hints->min_width = hints->max_width = w; | |
| 616 hints->min_height = hints->max_height = h; | |
| 617 } | |
| 618 hints->flags = PMaxSize | PMinSize; | |
| 619 if ( flags & SDL_FULLSCREEN ) { | |
| 620 hints->x = 0; | |
| 621 hints->y = 0; | |
| 622 hints->flags |= USPosition; | |
| 623 } else | |
| 624 /* Center it, if desired */ | |
|
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625 if ( X11_WindowPosition(this, &hints->x, &hints->y, w, h) ) { |
| 0 | 626 hints->flags |= USPosition; |
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627 pXMoveWindow(SDL_Display, WMwindow, hints->x, hints->y); |
| 0 | 628 |
| 629 /* Flush the resize event so we don't catch it later */ | |
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630 pXSync(SDL_Display, True); |
| 0 | 631 } |
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632 pXSetWMNormalHints(SDL_Display, WMwindow, hints); |
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633 pXFree(hints); |
| 0 | 634 } |
| 635 | |
| 636 /* Respect the window caption style */ | |
| 637 if ( flags & SDL_NOFRAME ) { | |
| 638 SDL_bool set; | |
| 639 Atom WM_HINTS; | |
| 640 | |
| 641 /* We haven't modified the window manager hints yet */ | |
| 642 set = SDL_FALSE; | |
| 643 | |
| 644 /* First try to set MWM hints */ | |
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645 WM_HINTS = pXInternAtom(SDL_Display, "_MOTIF_WM_HINTS", True); |
| 0 | 646 if ( WM_HINTS != None ) { |
| 647 /* Hints used by Motif compliant window managers */ | |
| 648 struct { | |
| 649 unsigned long flags; | |
| 650 unsigned long functions; | |
| 651 unsigned long decorations; | |
| 652 long input_mode; | |
| 653 unsigned long status; | |
| 654 } MWMHints = { (1L << 1), 0, 0, 0, 0 }; | |
| 655 | |
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656 pXChangeProperty(SDL_Display, WMwindow, |
| 0 | 657 WM_HINTS, WM_HINTS, 32, |
| 658 PropModeReplace, | |
| 659 (unsigned char *)&MWMHints, | |
| 660 sizeof(MWMHints)/sizeof(long)); | |
| 661 set = SDL_TRUE; | |
| 662 } | |
| 663 /* Now try to set KWM hints */ | |
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664 WM_HINTS = pXInternAtom(SDL_Display, "KWM_WIN_DECORATION", True); |
| 0 | 665 if ( WM_HINTS != None ) { |
| 666 long KWMHints = 0; | |
| 667 | |
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668 pXChangeProperty(SDL_Display, WMwindow, |
| 0 | 669 WM_HINTS, WM_HINTS, 32, |
| 670 PropModeReplace, | |
| 671 (unsigned char *)&KWMHints, | |
| 672 sizeof(KWMHints)/sizeof(long)); | |
| 673 set = SDL_TRUE; | |
| 674 } | |
| 675 /* Now try to set GNOME hints */ | |
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676 WM_HINTS = pXInternAtom(SDL_Display, "_WIN_HINTS", True); |
| 0 | 677 if ( WM_HINTS != None ) { |
| 678 long GNOMEHints = 0; | |
| 679 | |
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680 pXChangeProperty(SDL_Display, WMwindow, |
| 0 | 681 WM_HINTS, WM_HINTS, 32, |
| 682 PropModeReplace, | |
| 683 (unsigned char *)&GNOMEHints, | |
| 684 sizeof(GNOMEHints)/sizeof(long)); | |
| 685 set = SDL_TRUE; | |
| 686 } | |
| 687 /* Finally set the transient hints if necessary */ | |
| 688 if ( ! set ) { | |
|
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689 pXSetTransientForHint(SDL_Display, WMwindow, SDL_Root); |
| 0 | 690 } |
| 691 } else { | |
| 692 SDL_bool set; | |
| 693 Atom WM_HINTS; | |
| 694 | |
| 695 /* We haven't modified the window manager hints yet */ | |
| 696 set = SDL_FALSE; | |
| 697 | |
| 698 /* First try to unset MWM hints */ | |
|
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699 WM_HINTS = pXInternAtom(SDL_Display, "_MOTIF_WM_HINTS", True); |
| 0 | 700 if ( WM_HINTS != None ) { |
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701 pXDeleteProperty(SDL_Display, WMwindow, WM_HINTS); |
| 0 | 702 set = SDL_TRUE; |
| 703 } | |
| 704 /* Now try to unset KWM hints */ | |
|
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705 WM_HINTS = pXInternAtom(SDL_Display, "KWM_WIN_DECORATION", True); |
| 0 | 706 if ( WM_HINTS != None ) { |
|
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707 pXDeleteProperty(SDL_Display, WMwindow, WM_HINTS); |
| 0 | 708 set = SDL_TRUE; |
| 709 } | |
| 710 /* Now try to unset GNOME hints */ | |
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711 WM_HINTS = pXInternAtom(SDL_Display, "_WIN_HINTS", True); |
| 0 | 712 if ( WM_HINTS != None ) { |
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713 pXDeleteProperty(SDL_Display, WMwindow, WM_HINTS); |
| 0 | 714 set = SDL_TRUE; |
| 715 } | |
| 716 /* Finally unset the transient hints if necessary */ | |
| 717 if ( ! set ) { | |
| 718 /* NOTE: Does this work? */ | |
|
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719 pXSetTransientForHint(SDL_Display, WMwindow, None); |
| 0 | 720 } |
| 721 } | |
| 722 } | |
| 723 | |
| 724 static int X11_CreateWindow(_THIS, SDL_Surface *screen, | |
| 725 int w, int h, int bpp, Uint32 flags) | |
| 726 { | |
| 727 int i, depth; | |
| 728 Visual *vis; | |
| 729 int vis_change; | |
| 730 | |
| 731 /* If a window is already present, destroy it and start fresh */ | |
| 732 if ( SDL_Window ) { | |
| 733 X11_DestroyWindow(this, screen); | |
|
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734 switch_waiting = 0; /* Prevent jump back to now-meaningless state. */ |
| 0 | 735 } |
| 736 | |
| 737 /* See if we have been given a window id */ | |
| 738 if ( SDL_windowid ) { | |
| 739 SDL_Window = strtol(SDL_windowid, NULL, 0); | |
| 740 } else { | |
| 741 SDL_Window = 0; | |
| 742 } | |
| 743 | |
| 744 /* find out which visual we are going to use */ | |
| 745 if ( flags & SDL_OPENGL ) { | |
| 746 XVisualInfo *vi; | |
| 747 | |
| 748 vi = X11_GL_GetVisual(this); | |
| 749 if( !vi ) { | |
| 750 return -1; | |
| 751 } | |
| 752 vis = vi->visual; | |
| 753 depth = vi->depth; | |
| 754 } else if ( SDL_windowid ) { | |
| 755 XWindowAttributes a; | |
| 756 | |
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757 pXGetWindowAttributes(SDL_Display, SDL_Window, &a); |
| 0 | 758 vis = a.visual; |
| 759 depth = a.depth; | |
| 760 } else { | |
| 761 for ( i = 0; i < this->hidden->nvisuals; i++ ) { | |
| 762 if ( this->hidden->visuals[i].bpp == bpp ) | |
| 763 break; | |
| 764 } | |
| 765 if ( i == this->hidden->nvisuals ) { | |
| 766 SDL_SetError("No matching visual for requested depth"); | |
| 767 return -1; /* should never happen */ | |
| 768 } | |
| 769 vis = this->hidden->visuals[i].visual; | |
| 770 depth = this->hidden->visuals[i].depth; | |
| 771 } | |
| 772 #ifdef X11_DEBUG | |
| 773 printf("Choosing %s visual at %d bpp - %d colormap entries\n", vis->class == PseudoColor ? "PseudoColor" : (vis->class == TrueColor ? "TrueColor" : (vis->class == DirectColor ? "DirectColor" : "Unknown")), depth, vis->map_entries); | |
| 774 #endif | |
| 775 vis_change = (vis != SDL_Visual); | |
| 776 SDL_Visual = vis; | |
| 777 this->hidden->depth = depth; | |
| 778 | |
| 779 /* Allocate the new pixel format for this video mode */ | |
| 780 if ( ! SDL_ReallocFormat(screen, bpp, | |
| 781 vis->red_mask, vis->green_mask, vis->blue_mask, 0) ) | |
| 782 return -1; | |
| 783 | |
| 784 /* Create the appropriate colormap */ | |
| 785 if ( SDL_XColorMap != SDL_DisplayColormap ) { | |
|
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786 pXFreeColormap(SDL_Display, SDL_XColorMap); |
| 0 | 787 } |
| 788 if ( SDL_Visual->class == PseudoColor ) { | |
| 789 int ncolors; | |
| 790 | |
| 791 /* Allocate the pixel flags */ | |
| 792 ncolors = SDL_Visual->map_entries; | |
| 793 SDL_XPixels = malloc(ncolors * sizeof(int)); | |
| 794 if(SDL_XPixels == NULL) { | |
| 795 SDL_OutOfMemory(); | |
| 796 return -1; | |
| 797 } | |
| 798 memset(SDL_XPixels, 0, ncolors * sizeof(*SDL_XPixels)); | |
| 799 | |
| 800 /* always allocate a private colormap on non-default visuals */ | |
| 801 if ( SDL_Visual != DefaultVisual(SDL_Display, SDL_Screen) ) { | |
| 802 flags |= SDL_HWPALETTE; | |
| 803 } | |
| 804 if ( flags & SDL_HWPALETTE ) { | |
| 805 screen->flags |= SDL_HWPALETTE; | |
|
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806 SDL_XColorMap = pXCreateColormap(SDL_Display, SDL_Root, |
| 0 | 807 SDL_Visual, AllocAll); |
| 808 } else { | |
| 809 SDL_XColorMap = SDL_DisplayColormap; | |
| 810 } | |
| 811 } else if ( SDL_Visual->class == DirectColor ) { | |
| 812 | |
| 813 /* Create a colormap which we can manipulate for gamma */ | |
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814 SDL_XColorMap = pXCreateColormap(SDL_Display, SDL_Root, |
| 0 | 815 SDL_Visual, AllocAll); |
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816 pXSync(SDL_Display, False); |
| 0 | 817 |
| 818 /* Initialize the colormap to the identity mapping */ | |
| 819 SDL_GetGammaRamp(0, 0, 0); | |
| 820 this->screen = screen; | |
| 821 X11_SetGammaRamp(this, this->gamma); | |
| 822 this->screen = NULL; | |
| 823 } else { | |
| 824 /* Create a read-only colormap for our window */ | |
|
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825 SDL_XColorMap = pXCreateColormap(SDL_Display, SDL_Root, |
| 0 | 826 SDL_Visual, AllocNone); |
| 827 } | |
| 828 | |
| 829 /* Recreate the auxiliary windows, if needed (required for GL) */ | |
| 830 if ( vis_change ) | |
| 831 create_aux_windows(this); | |
| 832 | |
| 833 if(screen->flags & SDL_HWPALETTE) { | |
| 834 /* Since the full-screen window might have got a nonzero background | |
| 835 colour (0 is white on some displays), we should reset the | |
| 836 background to 0 here since that is what the user expects | |
| 837 with a private colormap */ | |
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838 pXSetWindowBackground(SDL_Display, FSwindow, 0); |
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839 pXClearWindow(SDL_Display, FSwindow); |
| 0 | 840 } |
| 841 | |
| 842 /* resize the (possibly new) window manager window */ | |
| 843 if( !SDL_windowid ) { | |
| 844 X11_SetSizeHints(this, w, h, flags); | |
| 845 current_w = w; | |
| 846 current_h = h; | |
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847 pXResizeWindow(SDL_Display, WMwindow, w, h); |
| 0 | 848 } |
| 849 | |
| 850 /* Create (or use) the X11 display window */ | |
| 851 if ( !SDL_windowid ) { | |
| 852 if ( flags & SDL_OPENGL ) { | |
| 853 if ( X11_GL_CreateWindow(this, w, h) < 0 ) { | |
| 854 return(-1); | |
| 855 } | |
| 856 } else { | |
| 857 XSetWindowAttributes swa; | |
| 858 | |
| 859 swa.background_pixel = 0; | |
| 860 swa.border_pixel = 0; | |
| 861 swa.colormap = SDL_XColorMap; | |
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862 SDL_Window = pXCreateWindow(SDL_Display, WMwindow, |
| 0 | 863 0, 0, w, h, 0, depth, |
| 864 InputOutput, SDL_Visual, | |
| 865 CWBackPixel | CWBorderPixel | |
| 866 | CWColormap, &swa); | |
| 867 } | |
| 868 /* Only manage our input if we own the window */ | |
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869 pXSelectInput(SDL_Display, SDL_Window, |
| 0 | 870 ( EnterWindowMask | LeaveWindowMask |
| 871 | ButtonPressMask | ButtonReleaseMask | |
| 872 | PointerMotionMask | ExposureMask )); | |
| 873 } | |
| 874 /* Create the graphics context here, once we have a window */ | |
| 875 if ( flags & SDL_OPENGL ) { | |
| 876 if ( X11_GL_CreateContext(this) < 0 ) { | |
| 877 return(-1); | |
| 878 } else { | |
| 879 screen->flags |= SDL_OPENGL; | |
| 880 } | |
| 881 } else { | |
| 882 XGCValues gcv; | |
| 883 | |
| 884 gcv.graphics_exposures = False; | |
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885 SDL_GC = pXCreateGC(SDL_Display, SDL_Window, |
| 0 | 886 GCGraphicsExposures, &gcv); |
| 887 if ( ! SDL_GC ) { | |
| 888 SDL_SetError("Couldn't create graphics context"); | |
| 889 return(-1); | |
| 890 } | |
| 891 } | |
| 892 | |
| 893 /* Set our colormaps when not setting a GL mode */ | |
| 894 if ( ! (flags & SDL_OPENGL) ) { | |
|
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895 pXSetWindowColormap(SDL_Display, SDL_Window, SDL_XColorMap); |
| 0 | 896 if( !SDL_windowid ) { |
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897 pXSetWindowColormap(SDL_Display, FSwindow, SDL_XColorMap); |
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898 pXSetWindowColormap(SDL_Display, WMwindow, SDL_XColorMap); |
| 0 | 899 } |
| 900 } | |
| 901 | |
| 902 #if 0 /* This is an experiment - are the graphics faster now? - nope. */ | |
| 903 if ( getenv("SDL_VIDEO_X11_BACKINGSTORE") ) | |
| 904 #endif | |
| 905 /* Cache the window in the server, when possible */ | |
| 906 { | |
| 907 Screen *xscreen; | |
| 908 XSetWindowAttributes a; | |
| 909 | |
| 910 xscreen = ScreenOfDisplay(SDL_Display, SDL_Screen); | |
| 911 a.backing_store = DoesBackingStore(xscreen); | |
| 912 if ( a.backing_store != NotUseful ) { | |
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913 pXChangeWindowAttributes(SDL_Display, SDL_Window, |
| 0 | 914 CWBackingStore, &a); |
| 915 } | |
| 916 } | |
| 917 | |
| 918 /* Update the internal keyboard state */ | |
|
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919 X11_SetKeyboardState(SDL_Display, SDL_IC, NULL); |
| 0 | 920 |
|
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921 /* When the window is first mapped, ignore non-modifier keys */ |
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922 { |
|
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923 Uint8 *keys = SDL_GetKeyState(NULL); |
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924 for ( i = 0; i < SDLK_LAST; ++i ) { |
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925 switch (i) { |
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926 case SDLK_NUMLOCK: |
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927 case SDLK_CAPSLOCK: |
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928 case SDLK_LCTRL: |
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929 case SDLK_RCTRL: |
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930 case SDLK_LSHIFT: |
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931 case SDLK_RSHIFT: |
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932 case SDLK_LALT: |
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933 case SDLK_RALT: |
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934 case SDLK_LMETA: |
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935 case SDLK_RMETA: |
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936 case SDLK_MODE: |
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937 break; |
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938 default: |
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939 keys[i] = SDL_RELEASED; |
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940 break; |
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941 } |
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942 } |
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943 } |
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944 |
| 0 | 945 /* Map them both and go fullscreen, if requested */ |
| 946 if ( ! SDL_windowid ) { | |
|
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947 pXMapWindow(SDL_Display, SDL_Window); |
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948 pXMapWindow(SDL_Display, WMwindow); |
| 160 | 949 X11_WaitMapped(this, WMwindow); |
| 0 | 950 if ( flags & SDL_FULLSCREEN ) { |
| 951 screen->flags |= SDL_FULLSCREEN; | |
| 952 X11_EnterFullScreen(this); | |
| 953 } else { | |
| 954 screen->flags &= ~SDL_FULLSCREEN; | |
| 955 } | |
| 956 } | |
|
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957 |
| 0 | 958 return(0); |
| 959 } | |
| 960 | |
| 961 static int X11_ResizeWindow(_THIS, | |
| 962 SDL_Surface *screen, int w, int h, Uint32 flags) | |
| 963 { | |
| 964 if ( ! SDL_windowid ) { | |
| 965 /* Resize the window manager window */ | |
| 966 X11_SetSizeHints(this, w, h, flags); | |
| 967 current_w = w; | |
| 968 current_h = h; | |
|
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969 pXResizeWindow(SDL_Display, WMwindow, w, h); |
| 0 | 970 |
| 971 /* Resize the fullscreen and display windows */ | |
| 972 if ( flags & SDL_FULLSCREEN ) { | |
| 973 if ( screen->flags & SDL_FULLSCREEN ) { | |
| 974 X11_ResizeFullScreen(this); | |
| 975 } else { | |
| 976 screen->flags |= SDL_FULLSCREEN; | |
| 977 X11_EnterFullScreen(this); | |
| 978 } | |
| 979 } else { | |
| 980 if ( screen->flags & SDL_FULLSCREEN ) { | |
| 981 screen->flags &= ~SDL_FULLSCREEN; | |
| 982 X11_LeaveFullScreen(this); | |
| 983 } | |
| 984 } | |
|
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|
985 pXResizeWindow(SDL_Display, SDL_Window, w, h); |
| 0 | 986 } |
| 987 return(0); | |
| 988 } | |
| 989 | |
| 990 SDL_Surface *X11_SetVideoMode(_THIS, SDL_Surface *current, | |
| 991 int width, int height, int bpp, Uint32 flags) | |
| 992 { | |
| 993 Uint32 saved_flags; | |
| 994 | |
| 995 /* Lock the event thread, in multi-threading environments */ | |
| 996 SDL_Lock_EventThread(); | |
| 997 | |
| 998 /* Check the combination of flags we were passed */ | |
| 999 if ( flags & SDL_FULLSCREEN ) { | |
| 1000 /* Clear fullscreen flag if not supported */ | |
| 1001 if ( SDL_windowid ) { | |
| 1002 flags &= ~SDL_FULLSCREEN; | |
| 1003 } | |
| 1004 } | |
| 1005 | |
| 1006 /* Flush any delayed updates */ | |
|
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|
1007 pXSync(GFX_Display, False); |
| 0 | 1008 |
| 1009 /* Set up the X11 window */ | |
| 1010 saved_flags = current->flags; | |
|
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|
1011 if ( (SDL_Window) && ((saved_flags&SDL_OPENGL) == (flags&SDL_OPENGL)) |
|
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|
1012 && (bpp == current->format->BitsPerPixel) |
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|
1013 && ((saved_flags&SDL_NOFRAME) == (flags&SDL_NOFRAME)) ) { |
| 0 | 1014 if (X11_ResizeWindow(this, current, width, height, flags) < 0) { |
| 1015 current = NULL; | |
| 1016 goto done; | |
| 1017 } | |
| 1018 } else { | |
| 1019 if (X11_CreateWindow(this,current,width,height,bpp,flags) < 0) { | |
| 1020 current = NULL; | |
| 1021 goto done; | |
| 1022 } | |
| 1023 } | |
| 1024 | |
| 1025 /* Set up the new mode framebuffer */ | |
| 1026 if ( ((current->w != width) || (current->h != height)) || | |
| 1027 ((saved_flags&SDL_OPENGL) != (flags&SDL_OPENGL)) ) { | |
| 1028 current->w = width; | |
| 1029 current->h = height; | |
| 1030 current->pitch = SDL_CalculatePitch(current); | |
| 1031 X11_ResizeImage(this, current, flags); | |
| 1032 } | |
| 1033 current->flags |= (flags&(SDL_RESIZABLE|SDL_NOFRAME)); | |
| 1034 | |
| 1035 done: | |
| 1036 /* Release the event thread */ | |
|
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|
1037 pXSync(SDL_Display, False); |
| 0 | 1038 SDL_Unlock_EventThread(); |
| 1039 | |
| 1040 /* We're done! */ | |
| 1041 return(current); | |
| 1042 } | |
| 1043 | |
| 1044 static int X11_ToggleFullScreen(_THIS, int on) | |
| 1045 { | |
| 1046 Uint32 event_thread; | |
| 1047 | |
| 1048 /* Don't switch if we don't own the window */ | |
| 1049 if ( SDL_windowid ) { | |
| 1050 return(0); | |
| 1051 } | |
| 1052 | |
| 1053 /* Don't lock if we are the event thread */ | |
| 1054 event_thread = SDL_EventThreadID(); | |
| 1055 if ( event_thread && (SDL_ThreadID() == event_thread) ) { | |
| 1056 event_thread = 0; | |
| 1057 } | |
| 1058 if ( event_thread ) { | |
| 1059 SDL_Lock_EventThread(); | |
| 1060 } | |
| 1061 if ( on ) { | |
| 1062 this->screen->flags |= SDL_FULLSCREEN; | |
| 1063 X11_EnterFullScreen(this); | |
| 1064 } else { | |
| 1065 this->screen->flags &= ~SDL_FULLSCREEN; | |
| 1066 X11_LeaveFullScreen(this); | |
| 1067 } | |
| 1068 X11_RefreshDisplay(this); | |
| 1069 if ( event_thread ) { | |
| 1070 SDL_Unlock_EventThread(); | |
| 1071 } | |
| 1072 SDL_ResetKeyboard(); | |
| 1073 return(1); | |
| 1074 } | |
| 1075 | |
| 1076 /* Update the current mouse state and position */ | |
| 1077 static void X11_UpdateMouse(_THIS) | |
| 1078 { | |
| 1079 Window u1; int u2; | |
| 1080 Window current_win; | |
| 1081 int x, y; | |
| 1082 unsigned int mask; | |
| 1083 | |
| 1084 /* Lock the event thread, in multi-threading environments */ | |
| 1085 SDL_Lock_EventThread(); | |
|
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|
1086 if ( pXQueryPointer(SDL_Display, SDL_Window, &u1, ¤t_win, |
| 0 | 1087 &u2, &u2, &x, &y, &mask) ) { |
| 1088 if ( (x >= 0) && (x < SDL_VideoSurface->w) && | |
| 1089 (y >= 0) && (y < SDL_VideoSurface->h) ) { | |
| 1090 SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS); | |
| 1091 SDL_PrivateMouseMotion(0, 0, x, y); | |
| 1092 } else { | |
| 1093 SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS); | |
| 1094 } | |
| 1095 } | |
| 1096 SDL_Unlock_EventThread(); | |
| 1097 } | |
| 1098 | |
| 1099 /* simple colour distance metric. Supposed to be better than a plain | |
| 1100 Euclidian distance anyway. */ | |
| 1101 #define COLOUR_FACTOR 3 | |
| 1102 #define LIGHT_FACTOR 1 | |
| 1103 #define COLOUR_DIST(r1, g1, b1, r2, g2, b2) \ | |
| 1104 (COLOUR_FACTOR * (abs(r1 - r2) + abs(g1 - g2) + abs(b1 - b2)) \ | |
| 1105 + LIGHT_FACTOR * abs(r1 + g1 + b1 - (r2 + g2 + b2))) | |
| 1106 | |
| 1107 static void allocate_nearest(_THIS, SDL_Color *colors, | |
| 1108 SDL_Color *want, int nwant) | |
| 1109 { | |
| 1110 /* | |
| 1111 * There is no way to know which ones to choose from, so we retrieve | |
| 1112 * the entire colormap and try the nearest possible, until we find one | |
| 1113 * that is shared. | |
| 1114 */ | |
| 1115 XColor all[256]; | |
| 1116 int i; | |
| 1117 for(i = 0; i < 256; i++) | |
| 1118 all[i].pixel = i; | |
| 1119 /* | |
| 1120 * XQueryColors sets the flags in the XColor struct, so we use | |
| 1121 * that to keep track of which colours are available | |
| 1122 */ | |
|
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|
1123 pXQueryColors(GFX_Display, SDL_XColorMap, all, 256); |
| 0 | 1124 |
| 1125 for(i = 0; i < nwant; i++) { | |
| 1126 XColor *c; | |
| 1127 int j; | |
| 1128 int best = 0; | |
| 1129 int mindist = 0x7fffffff; | |
| 1130 int ri = want[i].r; | |
| 1131 int gi = want[i].g; | |
| 1132 int bi = want[i].b; | |
| 1133 for(j = 0; j < 256; j++) { | |
| 1134 int rj, gj, bj, d2; | |
| 1135 if(!all[j].flags) | |
| 1136 continue; /* unavailable colour cell */ | |
| 1137 rj = all[j].red >> 8; | |
| 1138 gj = all[j].green >> 8; | |
| 1139 bj = all[j].blue >> 8; | |
| 1140 d2 = COLOUR_DIST(ri, gi, bi, rj, gj, bj); | |
| 1141 if(d2 < mindist) { | |
| 1142 mindist = d2; | |
| 1143 best = j; | |
| 1144 } | |
| 1145 } | |
| 1146 if(SDL_XPixels[best]) | |
| 1147 continue; /* already allocated, waste no more time */ | |
| 1148 c = all + best; | |
|
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1149 if(pXAllocColor(GFX_Display, SDL_XColorMap, c)) { |
| 0 | 1150 /* got it */ |
|
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1151 colors[c->pixel].r = c->red >> 8; |
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1152 colors[c->pixel].g = c->green >> 8; |
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1153 colors[c->pixel].b = c->blue >> 8; |
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1154 ++SDL_XPixels[c->pixel]; |
| 0 | 1155 } else { |
| 1156 /* | |
| 1157 * The colour couldn't be allocated, probably being | |
| 1158 * owned as a r/w cell by another client. Flag it as | |
| 1159 * unavailable and try again. The termination of the | |
| 1160 * loop is guaranteed since at least black and white | |
| 1161 * are always there. | |
| 1162 */ | |
| 1163 c->flags = 0; | |
| 1164 i--; | |
| 1165 } | |
| 1166 } | |
| 1167 } | |
| 1168 | |
| 1169 int X11_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) | |
| 1170 { | |
| 1171 int nrej = 0; | |
| 1172 | |
| 1173 /* Check to make sure we have a colormap allocated */ | |
| 1174 if ( SDL_XPixels == NULL ) { | |
| 1175 return(0); | |
| 1176 } | |
| 1177 if ( (this->screen->flags & SDL_HWPALETTE) == SDL_HWPALETTE ) { | |
| 1178 /* private writable colormap: just set the colours we need */ | |
| 1179 XColor *xcmap; | |
| 1180 int i; | |
| 1181 xcmap = ALLOCA(ncolors*sizeof(*xcmap)); | |
| 1182 if(xcmap == NULL) | |
| 1183 return 0; | |
| 1184 for ( i=0; i<ncolors; ++i ) { | |
| 1185 xcmap[i].pixel = i + firstcolor; | |
| 1186 xcmap[i].red = (colors[i].r<<8)|colors[i].r; | |
| 1187 xcmap[i].green = (colors[i].g<<8)|colors[i].g; | |
| 1188 xcmap[i].blue = (colors[i].b<<8)|colors[i].b; | |
| 1189 xcmap[i].flags = (DoRed|DoGreen|DoBlue); | |
| 1190 } | |
|
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|
1191 pXStoreColors(GFX_Display, SDL_XColorMap, xcmap, ncolors); |
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|
1192 pXSync(GFX_Display, False); |
| 0 | 1193 FREEA(xcmap); |
| 1194 } else { | |
| 1195 /* | |
| 1196 * Shared colormap: We only allocate read-only cells, which | |
| 1197 * increases the likelyhood of colour sharing with other | |
| 1198 * clients. The pixel values will almost certainly be | |
| 1199 * different from the requested ones, so the user has to | |
| 1200 * walk the colormap and see which index got what colour. | |
| 1201 * | |
| 1202 * We can work directly with the logical palette since it | |
| 1203 * has already been set when we get here. | |
| 1204 */ | |
| 1205 SDL_Color *want, *reject; | |
| 1206 unsigned long *freelist; | |
| 1207 int i; | |
| 1208 int nfree = 0; | |
| 1209 int nc = this->screen->format->palette->ncolors; | |
| 1210 colors = this->screen->format->palette->colors; | |
| 1211 freelist = ALLOCA(nc * sizeof(*freelist)); | |
| 1212 /* make sure multiple allocations of the same cell are freed */ | |
| 1213 for(i = 0; i < ncolors; i++) { | |
| 1214 int pixel = firstcolor + i; | |
| 1215 while(SDL_XPixels[pixel]) { | |
| 1216 freelist[nfree++] = pixel; | |
| 1217 --SDL_XPixels[pixel]; | |
| 1218 } | |
| 1219 } | |
|
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diff
changeset
|
1220 pXFreeColors(GFX_Display, SDL_XColorMap, freelist, nfree, 0); |
| 0 | 1221 FREEA(freelist); |
| 1222 | |
| 1223 want = ALLOCA(ncolors * sizeof(SDL_Color)); | |
| 1224 reject = ALLOCA(ncolors * sizeof(SDL_Color)); | |
| 1225 memcpy(want, colors + firstcolor, ncolors * sizeof(SDL_Color)); | |
| 1226 /* make sure the user isn't fooled by her own wishes | |
| 1227 (black is safe, always available in the default colormap) */ | |
| 1228 memset(colors + firstcolor, 0, ncolors * sizeof(SDL_Color)); | |
| 1229 | |
| 1230 /* now try to allocate the colours */ | |
| 1231 for(i = 0; i < ncolors; i++) { | |
| 1232 XColor col; | |
| 1233 col.red = want[i].r << 8; | |
| 1234 col.green = want[i].g << 8; | |
| 1235 col.blue = want[i].b << 8; | |
| 1236 col.flags = DoRed | DoGreen | DoBlue; | |
|
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changeset
|
1237 if(pXAllocColor(GFX_Display, SDL_XColorMap, &col)) { |
| 0 | 1238 /* We got the colour, or at least the nearest |
| 1239 the hardware could get. */ | |
| 1240 colors[col.pixel].r = col.red >> 8; | |
| 1241 colors[col.pixel].g = col.green >> 8; | |
| 1242 colors[col.pixel].b = col.blue >> 8; | |
| 1243 ++SDL_XPixels[col.pixel]; | |
| 1244 } else { | |
| 1245 /* | |
| 1246 * no more free cells, add it to the list | |
| 1247 * of rejected colours | |
| 1248 */ | |
| 1249 reject[nrej++] = want[i]; | |
| 1250 } | |
| 1251 } | |
| 1252 if(nrej) | |
| 1253 allocate_nearest(this, colors, reject, nrej); | |
| 1254 FREEA(reject); | |
| 1255 FREEA(want); | |
| 1256 } | |
| 1257 return nrej == 0; | |
| 1258 } | |
| 1259 | |
| 1260 int X11_SetGammaRamp(_THIS, Uint16 *ramp) | |
| 1261 { | |
| 1262 int i, ncolors; | |
| 1263 XColor xcmap[256]; | |
| 1264 | |
| 1265 /* See if actually setting the gamma is supported */ | |
| 1266 if ( SDL_Visual->class != DirectColor ) { | |
| 1267 SDL_SetError("Gamma correction not supported on this visual"); | |
| 1268 return(-1); | |
| 1269 } | |
| 1270 | |
| 1271 /* Calculate the appropriate palette for the given gamma ramp */ | |
| 1272 ncolors = SDL_Visual->map_entries; | |
| 1273 for ( i=0; i<ncolors; ++i ) { | |
| 1274 Uint8 c = (256 * i / ncolors); | |
| 1275 xcmap[i].pixel = SDL_MapRGB(this->screen->format, c, c, c); | |
| 1276 xcmap[i].red = ramp[0*256+c]; | |
| 1277 xcmap[i].green = ramp[1*256+c]; | |
| 1278 xcmap[i].blue = ramp[2*256+c]; | |
| 1279 xcmap[i].flags = (DoRed|DoGreen|DoBlue); | |
| 1280 } | |
|
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changeset
|
1281 pXStoreColors(GFX_Display, SDL_XColorMap, xcmap, ncolors); |
|
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|
1282 pXSync(GFX_Display, False); |
| 0 | 1283 return(0); |
| 1284 } | |
| 1285 | |
| 1286 /* Note: If we are terminated, this could be called in the middle of | |
| 1287 another SDL video routine -- notably UpdateRects. | |
| 1288 */ | |
| 1289 void X11_VideoQuit(_THIS) | |
| 1290 { | |
| 1291 /* Shutdown everything that's still up */ | |
| 1292 /* The event thread should be done, so we can touch SDL_Display */ | |
| 1293 if ( SDL_Display != NULL ) { | |
| 1294 /* Flush any delayed updates */ | |
|
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|
1295 pXSync(GFX_Display, False); |
| 0 | 1296 |
|
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|
1297 /* Close the connection with the IM server */ |
|
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|
1298 #ifdef X_HAVE_UTF8_STRING |
|
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1299 if (SDL_IC != NULL) { |
|
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1300 pXDestroyIC(SDL_IC); |
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1301 SDL_IC = NULL; |
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1302 } |
|
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|
1303 if (SDL_IM != NULL) { |
|
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1304 pXCloseIM(SDL_IM); |
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1305 SDL_IM = NULL; |
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1306 } |
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1307 #endif |
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1308 |
| 0 | 1309 /* Start shutting down the windows */ |
| 1310 X11_DestroyImage(this, this->screen); | |
| 1311 X11_DestroyWindow(this, this->screen); | |
| 1312 X11_FreeVideoModes(this); | |
| 1313 if ( SDL_XColorMap != SDL_DisplayColormap ) { | |
|
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1314 pXFreeColormap(SDL_Display, SDL_XColorMap); |
| 0 | 1315 } |
| 1316 if ( SDL_iconcolors ) { | |
| 1317 unsigned long pixel; | |
|
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1318 Colormap dcmap = DefaultColormap(SDL_Display, |
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1319 SDL_Screen); |
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1320 for(pixel = 0; pixel < 256; ++pixel) { |
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1321 while(SDL_iconcolors[pixel] > 0) { |
|
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1322 pXFreeColors(GFX_Display, |
|
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1323 dcmap, &pixel, 1, 0); |
| 0 | 1324 --SDL_iconcolors[pixel]; |
| 1325 } | |
| 1326 } | |
| 1327 free(SDL_iconcolors); | |
| 1328 SDL_iconcolors = NULL; | |
| 1329 } | |
| 1330 /* Restore gamma settings if they've changed */ | |
| 1331 if ( SDL_GetAppState() & SDL_APPACTIVE ) { | |
| 1332 X11_SwapVidModeGamma(this); | |
| 1333 } | |
| 1334 | |
| 1335 /* Free that blank cursor */ | |
| 1336 if ( SDL_BlankCursor != NULL ) { | |
| 1337 this->FreeWMCursor(this, SDL_BlankCursor); | |
| 1338 SDL_BlankCursor = NULL; | |
| 1339 } | |
| 1340 | |
| 1341 /* Close the X11 graphics connection */ | |
| 1342 if ( GFX_Display != NULL ) { | |
|
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|
1343 pXCloseDisplay(GFX_Display); |
| 0 | 1344 GFX_Display = NULL; |
| 1345 } | |
| 1346 | |
| 1347 /* Close the X11 display connection */ | |
|
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Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
867
diff
changeset
|
1348 pXCloseDisplay(SDL_Display); |
| 0 | 1349 SDL_Display = NULL; |
| 1350 | |
| 1351 /* Reset the X11 error handlers */ | |
| 1352 if ( XIO_handler ) { | |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
867
diff
changeset
|
1353 pXSetIOErrorHandler(XIO_handler); |
| 0 | 1354 } |
| 1355 if ( X_handler ) { | |
|
1168
045f186426e1
Dynamically load X11 libraries like we currently do for alsa, esd, etc.
Ryan C. Gordon <icculus@icculus.org>
parents:
867
diff
changeset
|
1356 pXSetErrorHandler(X_handler); |
| 0 | 1357 } |
| 1358 | |
| 1359 /* Unload GL library after X11 shuts down */ | |
| 1360 X11_GL_UnloadLibrary(this); | |
| 1361 } | |
| 1362 if ( this->screen && (this->screen->flags & SDL_HWSURFACE) ) { | |
| 1363 /* Direct screen access, no memory buffer */ | |
| 1364 this->screen->pixels = NULL; | |
| 1365 } | |
| 1366 } | |
| 1367 |