Mercurial > sdl-ios-xcode
annotate src/video/SDL_sysvideo.h @ 1050:8e1815fd9777
Holding down shift while moving the mouse's scrollwheel on MacOS X makes the
OS report these are "horizontal scrollwheel" events, which confuses gaming
apps in several legitimate conditions. Now all scrollwheel events are made
to look vertical when passed to the app.
Patch by John Knottenbelt.
http://www.libsdl.org/pipermail/sdl/2005-March/067978.html
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Sun, 17 Apr 2005 10:32:41 +0000 |
| parents | b8d311d90021 |
| children | 68f607298ca9 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997-2004 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 #ifndef _SDL_sysvideo_h | |
| 29 #define _SDL_sysvideo_h | |
| 30 | |
| 31 #include "SDL_mouse.h" | |
| 32 #define SDL_PROTOTYPES_ONLY | |
| 33 #include "SDL_syswm.h" | |
| 34 #undef SDL_PROTOTYPES_ONLY | |
| 35 | |
| 36 /* This file prototypes the video driver implementation. | |
| 37 This is designed to be easily converted to C++ in the future. | |
| 38 */ | |
| 39 | |
| 40 /* OpenGL is pretty much available on all Windows systems */ | |
| 41 #ifdef WIN32 | |
| 42 #ifndef _WIN32_WCE | |
| 43 #define HAVE_OPENGL | |
| 44 #endif | |
|
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45 #define WIN32_LEAN_AND_MEAN |
| 0 | 46 #include <windows.h> |
| 47 #endif | |
| 48 | |
| 49 #ifdef HAVE_OPENGL | |
| 50 #ifdef MACOSX | |
| 51 #include <OpenGL/gl.h> /* OpenGL.framework */ | |
| 52 #else | |
| 53 #include <GL/gl.h> | |
| 54 #endif /* MACOSX */ | |
| 55 #endif /* HAVE_OPENGL */ | |
| 56 | |
| 57 /* The SDL video driver */ | |
| 58 typedef struct SDL_VideoDevice SDL_VideoDevice; | |
| 59 | |
| 60 /* Define the SDL video driver structure */ | |
| 61 #define _THIS SDL_VideoDevice *_this | |
| 62 #ifndef _STATUS | |
| 63 #define _STATUS SDL_status *status | |
| 64 #endif | |
| 65 struct SDL_VideoDevice { | |
| 66 /* * * */ | |
|
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67 /* The name of this video driver */ |
| 0 | 68 const char *name; |
| 69 | |
| 70 /* * * */ | |
| 71 /* Initialization/Query functions */ | |
| 72 | |
| 73 /* Initialize the native video subsystem, filling 'vformat' with the | |
| 74 "best" display pixel format, returning 0 or -1 if there's an error. | |
| 75 */ | |
| 76 int (*VideoInit)(_THIS, SDL_PixelFormat *vformat); | |
| 77 | |
| 78 /* List the available video modes for the given pixel format, sorted | |
| 79 from largest to smallest. | |
| 80 */ | |
| 81 SDL_Rect **(*ListModes)(_THIS, SDL_PixelFormat *format, Uint32 flags); | |
| 82 | |
| 83 /* Set the requested video mode, returning a surface which will be | |
| 84 set to the SDL_VideoSurface. The width and height will already | |
| 85 be verified by ListModes(), and the video subsystem is free to | |
| 86 set the mode to a supported bit depth different from the one | |
| 87 specified -- the desired bpp will be emulated with a shadow | |
| 88 surface if necessary. If a new mode is returned, this function | |
| 89 should take care of cleaning up the current mode. | |
| 90 */ | |
| 91 SDL_Surface *(*SetVideoMode)(_THIS, SDL_Surface *current, | |
| 92 int width, int height, int bpp, Uint32 flags); | |
| 93 | |
| 94 /* Toggle the fullscreen mode */ | |
| 95 int (*ToggleFullScreen)(_THIS, int on); | |
| 96 | |
| 97 /* This is called after the video mode has been set, to get the | |
| 98 initial mouse state. It should queue events as necessary to | |
| 99 properly represent the current mouse focus and position. | |
| 100 */ | |
| 101 void (*UpdateMouse)(_THIS); | |
| 102 | |
| 103 /* Create a YUV video surface (possibly overlay) of the given | |
| 104 format. The hardware should be able to perform at least 2x | |
| 105 scaling on display. | |
| 106 */ | |
| 107 SDL_Overlay *(*CreateYUVOverlay)(_THIS, int width, int height, | |
| 108 Uint32 format, SDL_Surface *display); | |
| 109 | |
| 110 /* Sets the color entries { firstcolor .. (firstcolor+ncolors-1) } | |
| 111 of the physical palette to those in 'colors'. If the device is | |
| 112 using a software palette (SDL_HWPALETTE not set), then the | |
| 113 changes are reflected in the logical palette of the screen | |
| 114 as well. | |
| 115 The return value is 1 if all entries could be set properly | |
| 116 or 0 otherwise. | |
| 117 */ | |
| 118 int (*SetColors)(_THIS, int firstcolor, int ncolors, | |
| 119 SDL_Color *colors); | |
| 120 | |
| 121 /* This pointer should exist in the native video subsystem and should | |
| 122 point to an appropriate update function for the current video mode | |
| 123 */ | |
| 124 void (*UpdateRects)(_THIS, int numrects, SDL_Rect *rects); | |
| 125 | |
| 126 /* Reverse the effects VideoInit() -- called if VideoInit() fails | |
| 127 or if the application is shutting down the video subsystem. | |
| 128 */ | |
| 129 void (*VideoQuit)(_THIS); | |
| 130 | |
| 131 /* * * */ | |
| 132 /* Hardware acceleration functions */ | |
| 133 | |
| 134 /* Information about the video hardware */ | |
| 135 SDL_VideoInfo info; | |
| 136 | |
| 137 /* Allocates a surface in video memory */ | |
| 138 int (*AllocHWSurface)(_THIS, SDL_Surface *surface); | |
| 139 | |
| 140 /* Sets the hardware accelerated blit function, if any, based | |
| 141 on the current flags of the surface (colorkey, alpha, etc.) | |
| 142 */ | |
| 143 int (*CheckHWBlit)(_THIS, SDL_Surface *src, SDL_Surface *dst); | |
| 144 | |
| 145 /* Fills a surface rectangle with the given color */ | |
| 146 int (*FillHWRect)(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color); | |
| 147 | |
| 148 /* Sets video mem colorkey and accelerated blit function */ | |
| 149 int (*SetHWColorKey)(_THIS, SDL_Surface *surface, Uint32 key); | |
| 150 | |
| 151 /* Sets per surface hardware alpha value */ | |
| 152 int (*SetHWAlpha)(_THIS, SDL_Surface *surface, Uint8 value); | |
| 153 | |
| 154 /* Returns a readable/writable surface */ | |
| 155 int (*LockHWSurface)(_THIS, SDL_Surface *surface); | |
| 156 void (*UnlockHWSurface)(_THIS, SDL_Surface *surface); | |
| 157 | |
| 158 /* Performs hardware flipping */ | |
| 159 int (*FlipHWSurface)(_THIS, SDL_Surface *surface); | |
| 160 | |
| 161 /* Frees a previously allocated video surface */ | |
| 162 void (*FreeHWSurface)(_THIS, SDL_Surface *surface); | |
| 163 | |
| 164 /* * * */ | |
| 165 /* Gamma support */ | |
| 166 | |
| 167 Uint16 *gamma; | |
| 168 | |
| 169 /* Set the gamma correction directly (emulated with gamma ramps) */ | |
| 170 int (*SetGamma)(_THIS, float red, float green, float blue); | |
| 171 | |
| 172 /* Get the gamma correction directly (emulated with gamma ramps) */ | |
| 173 int (*GetGamma)(_THIS, float *red, float *green, float *blue); | |
| 174 | |
| 175 /* Set the gamma ramp */ | |
| 176 int (*SetGammaRamp)(_THIS, Uint16 *ramp); | |
| 177 | |
| 178 /* Get the gamma ramp */ | |
| 179 int (*GetGammaRamp)(_THIS, Uint16 *ramp); | |
| 180 | |
| 181 /* * * */ | |
| 182 /* OpenGL support */ | |
| 183 | |
| 184 /* Sets the dll to use for OpenGL and loads it */ | |
| 185 int (*GL_LoadLibrary)(_THIS, const char *path); | |
| 186 | |
| 187 /* Retrieves the address of a function in the gl library */ | |
| 188 void* (*GL_GetProcAddress)(_THIS, const char *proc); | |
| 189 | |
| 190 /* Get attribute information from the windowing system. */ | |
| 191 int (*GL_GetAttribute)(_THIS, SDL_GLattr attrib, int* value); | |
| 192 | |
| 193 /* Make the context associated with this driver current */ | |
| 194 int (*GL_MakeCurrent)(_THIS); | |
| 195 | |
| 196 /* Swap the current buffers in double buffer mode. */ | |
| 197 void (*GL_SwapBuffers)(_THIS); | |
| 198 | |
| 199 /* OpenGL functions for SDL_OPENGLBLIT */ | |
| 200 #ifdef HAVE_OPENGL | |
| 201 #ifndef WIN32 | |
| 202 #define WINAPI | |
| 203 #endif | |
| 204 #define SDL_PROC(ret,func,params) ret (WINAPI *func) params; | |
| 205 #include "SDL_glfuncs.h" | |
| 206 #undef SDL_PROC | |
| 207 | |
| 208 /* Texture id */ | |
| 209 GLuint texture; | |
| 210 #endif | |
| 211 int is_32bit; | |
| 212 | |
| 213 /* * * */ | |
| 214 /* Window manager functions */ | |
| 215 | |
| 216 /* Set the title and icon text */ | |
| 217 void (*SetCaption)(_THIS, const char *title, const char *icon); | |
| 218 | |
| 219 /* Set the window icon image */ | |
| 220 void (*SetIcon)(_THIS, SDL_Surface *icon, Uint8 *mask); | |
| 221 | |
| 222 /* Iconify the window. | |
| 223 This function returns 1 if there is a window manager and the | |
| 224 window was actually iconified, it returns 0 otherwise. | |
| 225 */ | |
| 226 int (*IconifyWindow)(_THIS); | |
| 227 | |
| 228 /* Grab or ungrab keyboard and mouse input */ | |
| 229 SDL_GrabMode (*GrabInput)(_THIS, SDL_GrabMode mode); | |
| 230 | |
| 231 /* Get some platform dependent window information */ | |
| 232 int (*GetWMInfo)(_THIS, SDL_SysWMinfo *info); | |
| 233 | |
| 234 /* * * */ | |
| 235 /* Cursor manager functions */ | |
| 236 | |
| 237 /* Free a window manager cursor | |
| 238 This function can be NULL if CreateWMCursor is also NULL. | |
| 239 */ | |
| 240 void (*FreeWMCursor)(_THIS, WMcursor *cursor); | |
| 241 | |
| 242 /* If not NULL, create a black/white window manager cursor */ | |
| 243 WMcursor *(*CreateWMCursor)(_THIS, | |
| 244 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y); | |
| 245 | |
| 246 /* Show the specified cursor, or hide if cursor is NULL */ | |
| 247 int (*ShowWMCursor)(_THIS, WMcursor *cursor); | |
| 248 | |
| 249 /* Warp the window manager cursor to (x,y) | |
| 250 If NULL, a mouse motion event is posted internally. | |
| 251 */ | |
| 252 void (*WarpWMCursor)(_THIS, Uint16 x, Uint16 y); | |
| 253 | |
| 254 /* If not NULL, this is called when a mouse motion event occurs */ | |
| 255 void (*MoveWMCursor)(_THIS, int x, int y); | |
| 256 | |
| 257 /* Determine whether the mouse should be in relative mode or not. | |
| 258 This function is called when the input grab state or cursor | |
| 259 visibility state changes. | |
| 260 If the cursor is not visible, and the input is grabbed, the | |
| 261 driver can place the mouse in relative mode, which may result | |
| 262 in higher accuracy sampling of the pointer motion. | |
| 263 */ | |
| 264 void (*CheckMouseMode)(_THIS); | |
| 265 | |
| 266 /* * * */ | |
| 267 /* Event manager functions */ | |
| 268 | |
| 269 /* Initialize keyboard mapping for this driver */ | |
| 270 void (*InitOSKeymap)(_THIS); | |
| 271 | |
| 272 /* Handle any queued OS events */ | |
| 273 void (*PumpEvents)(_THIS); | |
| 274 | |
| 275 /* * * */ | |
| 276 /* Data common to all drivers */ | |
| 277 SDL_Surface *screen; | |
| 278 SDL_Surface *shadow; | |
| 279 SDL_Surface *visible; | |
| 280 SDL_Palette *physpal; /* physical palette, if != logical palette */ | |
| 281 SDL_Color *gammacols; /* gamma-corrected colours, or NULL */ | |
| 282 char *wm_title; | |
| 283 char *wm_icon; | |
| 284 int offset_x; | |
| 285 int offset_y; | |
| 286 SDL_GrabMode input_grab; | |
| 287 | |
| 288 /* Driver information flags */ | |
| 289 int handles_any_size; /* Driver handles any size video mode */ | |
| 290 | |
| 291 /* * * */ | |
| 292 /* Data used by the GL drivers */ | |
| 293 struct { | |
| 294 int red_size; | |
| 295 int green_size; | |
| 296 int blue_size; | |
| 297 int alpha_size; | |
| 298 int depth_size; | |
|
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299 int buffer_size; |
| 0 | 300 int stencil_size; |
| 301 int double_buffer; | |
|
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302 int accum_red_size; |
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303 int accum_green_size; |
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304 int accum_blue_size; |
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305 int accum_alpha_size; |
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306 int stereo; |
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307 int multisamplebuffers; |
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308 int multisamplesamples; |
| 0 | 309 int driver_loaded; |
| 310 char driver_path[256]; | |
| 311 void* dll_handle; | |
| 312 } gl_config; | |
| 313 | |
| 314 /* * * */ | |
| 315 /* Data private to this driver */ | |
| 316 struct SDL_PrivateVideoData *hidden; | |
| 317 struct SDL_PrivateGLData *gl_data; | |
| 318 | |
| 319 /* * * */ | |
| 320 /* The function used to dispose of this structure */ | |
| 321 void (*free)(_THIS); | |
| 322 }; | |
| 323 #undef _THIS | |
| 324 | |
| 325 typedef struct VideoBootStrap { | |
| 326 const char *name; | |
| 327 const char *desc; | |
| 328 int (*available)(void); | |
| 329 SDL_VideoDevice *(*create)(int devindex); | |
| 330 } VideoBootStrap; | |
| 331 | |
| 332 #ifdef ENABLE_X11 | |
| 333 extern VideoBootStrap X11_bootstrap; | |
| 334 #endif | |
| 335 #ifdef ENABLE_DGA | |
| 336 extern VideoBootStrap DGA_bootstrap; | |
| 337 #endif | |
|
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338 #ifdef ENABLE_NANOX |
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339 extern VideoBootStrap NX_bootstrap; |
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340 #endif |
| 0 | 341 #ifdef ENABLE_FBCON |
| 342 extern VideoBootStrap FBCON_bootstrap; | |
| 343 #endif | |
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344 #ifdef ENABLE_DIRECTFB |
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345 extern VideoBootStrap DirectFB_bootstrap; |
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346 #endif |
| 0 | 347 #ifdef ENABLE_PS2GS |
| 348 extern VideoBootStrap PS2GS_bootstrap; | |
| 349 #endif | |
| 350 #ifdef ENABLE_GGI | |
| 351 extern VideoBootStrap GGI_bootstrap; | |
| 352 #endif | |
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353 #ifdef ENABLE_VGL |
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354 extern VideoBootStrap VGL_bootstrap; |
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355 #endif |
| 0 | 356 #ifdef ENABLE_SVGALIB |
| 357 extern VideoBootStrap SVGALIB_bootstrap; | |
| 358 #endif | |
| 359 #ifdef ENABLE_AALIB | |
| 360 extern VideoBootStrap AALIB_bootstrap; | |
| 361 #endif | |
| 362 #ifdef ENABLE_WINDIB | |
| 363 extern VideoBootStrap WINDIB_bootstrap; | |
| 364 #endif | |
| 365 #ifdef ENABLE_DIRECTX | |
| 366 extern VideoBootStrap DIRECTX_bootstrap; | |
| 367 #endif | |
| 368 #ifdef ENABLE_BWINDOW | |
| 369 extern VideoBootStrap BWINDOW_bootstrap; | |
| 370 #endif | |
| 371 /* MacOS X gets the proper defines from configure */ | |
| 372 #if defined(macintosh) && !defined(MACOSX) | |
| 373 #define ENABLE_TOOLBOX | |
| 374 #if !TARGET_API_MAC_CARBON | |
| 375 #define ENABLE_DRAWSPROCKET | |
| 376 #endif | |
| 377 #endif | |
| 378 #ifdef ENABLE_TOOLBOX | |
| 379 extern VideoBootStrap TOOLBOX_bootstrap; | |
| 380 #endif | |
| 381 #ifdef ENABLE_DRAWSPROCKET | |
| 382 extern VideoBootStrap DSp_bootstrap; | |
| 383 #endif | |
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384 #ifdef ENABLE_QUARTZ |
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385 extern VideoBootStrap QZ_bootstrap; |
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386 #endif |
| 0 | 387 #ifdef ENABLE_CYBERGRAPHICS |
| 388 extern VideoBootStrap CGX_bootstrap; | |
| 389 #endif | |
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390 #ifdef ENABLE_PHOTON |
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391 extern VideoBootStrap ph_bootstrap; |
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392 #endif |
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393 #ifdef ENABLE_EPOC |
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394 extern VideoBootStrap EPOC_bootstrap; |
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395 #endif |
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396 #ifdef ENABLE_DUMMYVIDEO |
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397 extern VideoBootStrap DUMMY_bootstrap; |
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398 #endif |
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399 #ifdef ENABLE_XBIOS |
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400 extern VideoBootStrap XBIOS_bootstrap; |
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401 #endif |
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402 #ifdef ENABLE_GEM |
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403 extern VideoBootStrap GEM_bootstrap; |
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404 #endif |
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405 #ifdef ENABLE_QTOPIA |
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406 extern VideoBootStrap Qtopia_bootstrap; |
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407 #endif |
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408 #ifdef ENABLE_PICOGUI |
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409 extern VideoBootStrap PG_bootstrap; |
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410 #endif |
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411 #ifdef ENABLE_DC |
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412 extern VideoBootStrap DC_bootstrap; |
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413 #endif |
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414 #ifdef ENABLE_RISCOS |
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415 extern VideoBootStrap RISCOS_bootstrap; |
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416 #endif |
| 0 | 417 /* This is the current video device */ |
| 418 extern SDL_VideoDevice *current_video; | |
| 419 | |
| 420 #define SDL_VideoSurface (current_video->screen) | |
| 421 #define SDL_ShadowSurface (current_video->shadow) | |
| 422 #define SDL_PublicSurface (current_video->visible) | |
| 423 | |
| 424 #endif /* _SDL_sysvideo_h */ |