Mercurial > sdl-ios-xcode
annotate src/video/SDL_sysvideo.h @ 1187:19d8949b4584
To: sdl@libsdl.org
From: Staffan Ulfberg <staffan@ulfberg.se>
Date: 19 Nov 2005 01:00:48 +0100
Subject: [SDL] New driver for OpenBSD/wscons
Hello,
I've written an SDL driver for OpenBSD/wscons (console mode, somewhat
resembling the functionality of the svga driver for Linux). I use it
for playing MAME on my Sharp Zaurus. The alternative is to play under
X, which is slower.
I asked how to submit the driver a few days ago, and posted a link to
the patch in a follow-up, so maybe it was missed?
Anyway, the patch is on the web at:
http://multivac.fatburen.org/SDL-wscons.patch
Comments?
Staffan
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Tue, 22 Nov 2005 15:19:50 +0000 |
| parents | af8b0f9ac2f4 |
| children | 173c063d4f55 |
| 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 | |
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137 /* The pixel format used when SDL_CreateRGBSurface creates SDL_HWSURFACEs with alpha */ |
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138 SDL_PixelFormat* displayformatalphapixel; |
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139 |
| 0 | 140 /* Allocates a surface in video memory */ |
| 141 int (*AllocHWSurface)(_THIS, SDL_Surface *surface); | |
| 142 | |
| 143 /* Sets the hardware accelerated blit function, if any, based | |
| 144 on the current flags of the surface (colorkey, alpha, etc.) | |
| 145 */ | |
| 146 int (*CheckHWBlit)(_THIS, SDL_Surface *src, SDL_Surface *dst); | |
| 147 | |
| 148 /* Fills a surface rectangle with the given color */ | |
| 149 int (*FillHWRect)(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color); | |
| 150 | |
| 151 /* Sets video mem colorkey and accelerated blit function */ | |
| 152 int (*SetHWColorKey)(_THIS, SDL_Surface *surface, Uint32 key); | |
| 153 | |
| 154 /* Sets per surface hardware alpha value */ | |
| 155 int (*SetHWAlpha)(_THIS, SDL_Surface *surface, Uint8 value); | |
| 156 | |
| 157 /* Returns a readable/writable surface */ | |
| 158 int (*LockHWSurface)(_THIS, SDL_Surface *surface); | |
| 159 void (*UnlockHWSurface)(_THIS, SDL_Surface *surface); | |
| 160 | |
| 161 /* Performs hardware flipping */ | |
| 162 int (*FlipHWSurface)(_THIS, SDL_Surface *surface); | |
| 163 | |
| 164 /* Frees a previously allocated video surface */ | |
| 165 void (*FreeHWSurface)(_THIS, SDL_Surface *surface); | |
| 166 | |
| 167 /* * * */ | |
| 168 /* Gamma support */ | |
| 169 | |
| 170 Uint16 *gamma; | |
| 171 | |
| 172 /* Set the gamma correction directly (emulated with gamma ramps) */ | |
| 173 int (*SetGamma)(_THIS, float red, float green, float blue); | |
| 174 | |
| 175 /* Get the gamma correction directly (emulated with gamma ramps) */ | |
| 176 int (*GetGamma)(_THIS, float *red, float *green, float *blue); | |
| 177 | |
| 178 /* Set the gamma ramp */ | |
| 179 int (*SetGammaRamp)(_THIS, Uint16 *ramp); | |
| 180 | |
| 181 /* Get the gamma ramp */ | |
| 182 int (*GetGammaRamp)(_THIS, Uint16 *ramp); | |
| 183 | |
| 184 /* * * */ | |
| 185 /* OpenGL support */ | |
| 186 | |
| 187 /* Sets the dll to use for OpenGL and loads it */ | |
| 188 int (*GL_LoadLibrary)(_THIS, const char *path); | |
| 189 | |
| 190 /* Retrieves the address of a function in the gl library */ | |
| 191 void* (*GL_GetProcAddress)(_THIS, const char *proc); | |
| 192 | |
| 193 /* Get attribute information from the windowing system. */ | |
| 194 int (*GL_GetAttribute)(_THIS, SDL_GLattr attrib, int* value); | |
| 195 | |
| 196 /* Make the context associated with this driver current */ | |
| 197 int (*GL_MakeCurrent)(_THIS); | |
| 198 | |
| 199 /* Swap the current buffers in double buffer mode. */ | |
| 200 void (*GL_SwapBuffers)(_THIS); | |
| 201 | |
| 202 /* OpenGL functions for SDL_OPENGLBLIT */ | |
| 203 #ifdef HAVE_OPENGL | |
| 204 #ifndef WIN32 | |
| 205 #define WINAPI | |
| 206 #endif | |
| 207 #define SDL_PROC(ret,func,params) ret (WINAPI *func) params; | |
| 208 #include "SDL_glfuncs.h" | |
| 209 #undef SDL_PROC | |
| 210 | |
| 211 /* Texture id */ | |
| 212 GLuint texture; | |
| 213 #endif | |
| 214 int is_32bit; | |
| 215 | |
| 216 /* * * */ | |
| 217 /* Window manager functions */ | |
| 218 | |
| 219 /* Set the title and icon text */ | |
| 220 void (*SetCaption)(_THIS, const char *title, const char *icon); | |
| 221 | |
| 222 /* Set the window icon image */ | |
| 223 void (*SetIcon)(_THIS, SDL_Surface *icon, Uint8 *mask); | |
| 224 | |
| 225 /* Iconify the window. | |
| 226 This function returns 1 if there is a window manager and the | |
| 227 window was actually iconified, it returns 0 otherwise. | |
| 228 */ | |
| 229 int (*IconifyWindow)(_THIS); | |
| 230 | |
| 231 /* Grab or ungrab keyboard and mouse input */ | |
| 232 SDL_GrabMode (*GrabInput)(_THIS, SDL_GrabMode mode); | |
| 233 | |
| 234 /* Get some platform dependent window information */ | |
| 235 int (*GetWMInfo)(_THIS, SDL_SysWMinfo *info); | |
| 236 | |
| 237 /* * * */ | |
| 238 /* Cursor manager functions */ | |
| 239 | |
| 240 /* Free a window manager cursor | |
| 241 This function can be NULL if CreateWMCursor is also NULL. | |
| 242 */ | |
| 243 void (*FreeWMCursor)(_THIS, WMcursor *cursor); | |
| 244 | |
| 245 /* If not NULL, create a black/white window manager cursor */ | |
| 246 WMcursor *(*CreateWMCursor)(_THIS, | |
| 247 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y); | |
| 248 | |
| 249 /* Show the specified cursor, or hide if cursor is NULL */ | |
| 250 int (*ShowWMCursor)(_THIS, WMcursor *cursor); | |
| 251 | |
| 252 /* Warp the window manager cursor to (x,y) | |
| 253 If NULL, a mouse motion event is posted internally. | |
| 254 */ | |
| 255 void (*WarpWMCursor)(_THIS, Uint16 x, Uint16 y); | |
| 256 | |
| 257 /* If not NULL, this is called when a mouse motion event occurs */ | |
| 258 void (*MoveWMCursor)(_THIS, int x, int y); | |
| 259 | |
| 260 /* Determine whether the mouse should be in relative mode or not. | |
| 261 This function is called when the input grab state or cursor | |
| 262 visibility state changes. | |
| 263 If the cursor is not visible, and the input is grabbed, the | |
| 264 driver can place the mouse in relative mode, which may result | |
| 265 in higher accuracy sampling of the pointer motion. | |
| 266 */ | |
| 267 void (*CheckMouseMode)(_THIS); | |
| 268 | |
| 269 /* * * */ | |
| 270 /* Event manager functions */ | |
| 271 | |
| 272 /* Initialize keyboard mapping for this driver */ | |
| 273 void (*InitOSKeymap)(_THIS); | |
| 274 | |
| 275 /* Handle any queued OS events */ | |
| 276 void (*PumpEvents)(_THIS); | |
| 277 | |
| 278 /* * * */ | |
| 279 /* Data common to all drivers */ | |
| 280 SDL_Surface *screen; | |
| 281 SDL_Surface *shadow; | |
| 282 SDL_Surface *visible; | |
| 283 SDL_Palette *physpal; /* physical palette, if != logical palette */ | |
| 284 SDL_Color *gammacols; /* gamma-corrected colours, or NULL */ | |
| 285 char *wm_title; | |
| 286 char *wm_icon; | |
| 287 int offset_x; | |
| 288 int offset_y; | |
| 289 SDL_GrabMode input_grab; | |
| 290 | |
| 291 /* Driver information flags */ | |
| 292 int handles_any_size; /* Driver handles any size video mode */ | |
| 293 | |
| 294 /* * * */ | |
| 295 /* Data used by the GL drivers */ | |
| 296 struct { | |
| 297 int red_size; | |
| 298 int green_size; | |
| 299 int blue_size; | |
| 300 int alpha_size; | |
| 301 int depth_size; | |
|
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302 int buffer_size; |
| 0 | 303 int stencil_size; |
| 304 int double_buffer; | |
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305 int accum_red_size; |
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306 int accum_green_size; |
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307 int accum_blue_size; |
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308 int accum_alpha_size; |
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309 int stereo; |
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310 int multisamplebuffers; |
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311 int multisamplesamples; |
| 0 | 312 int driver_loaded; |
| 313 char driver_path[256]; | |
| 314 void* dll_handle; | |
| 315 } gl_config; | |
| 316 | |
| 317 /* * * */ | |
| 318 /* Data private to this driver */ | |
| 319 struct SDL_PrivateVideoData *hidden; | |
| 320 struct SDL_PrivateGLData *gl_data; | |
| 321 | |
| 322 /* * * */ | |
| 323 /* The function used to dispose of this structure */ | |
| 324 void (*free)(_THIS); | |
| 325 }; | |
| 326 #undef _THIS | |
| 327 | |
| 328 typedef struct VideoBootStrap { | |
| 329 const char *name; | |
| 330 const char *desc; | |
| 331 int (*available)(void); | |
| 332 SDL_VideoDevice *(*create)(int devindex); | |
| 333 } VideoBootStrap; | |
| 334 | |
| 335 #ifdef ENABLE_X11 | |
| 336 extern VideoBootStrap X11_bootstrap; | |
| 337 #endif | |
| 338 #ifdef ENABLE_DGA | |
| 339 extern VideoBootStrap DGA_bootstrap; | |
| 340 #endif | |
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341 #ifdef ENABLE_NANOX |
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342 extern VideoBootStrap NX_bootstrap; |
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343 #endif |
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344 #ifdef ENABLE_IPOD |
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345 extern VideoBootStrap iPod_bootstrap; |
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346 #endif |
| 0 | 347 #ifdef ENABLE_FBCON |
| 348 extern VideoBootStrap FBCON_bootstrap; | |
| 349 #endif | |
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350 #ifdef ENABLE_DIRECTFB |
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351 extern VideoBootStrap DirectFB_bootstrap; |
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352 #endif |
| 0 | 353 #ifdef ENABLE_PS2GS |
| 354 extern VideoBootStrap PS2GS_bootstrap; | |
| 355 #endif | |
| 356 #ifdef ENABLE_GGI | |
| 357 extern VideoBootStrap GGI_bootstrap; | |
| 358 #endif | |
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359 #ifdef ENABLE_VGL |
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360 extern VideoBootStrap VGL_bootstrap; |
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361 #endif |
| 0 | 362 #ifdef ENABLE_SVGALIB |
| 363 extern VideoBootStrap SVGALIB_bootstrap; | |
| 364 #endif | |
| 365 #ifdef ENABLE_AALIB | |
| 366 extern VideoBootStrap AALIB_bootstrap; | |
| 367 #endif | |
| 368 #ifdef ENABLE_WINDIB | |
| 369 extern VideoBootStrap WINDIB_bootstrap; | |
| 370 #endif | |
| 371 #ifdef ENABLE_DIRECTX | |
| 372 extern VideoBootStrap DIRECTX_bootstrap; | |
| 373 #endif | |
| 374 #ifdef ENABLE_BWINDOW | |
| 375 extern VideoBootStrap BWINDOW_bootstrap; | |
| 376 #endif | |
| 377 /* MacOS X gets the proper defines from configure */ | |
| 378 #if defined(macintosh) && !defined(MACOSX) | |
| 379 #define ENABLE_TOOLBOX | |
| 380 #if !TARGET_API_MAC_CARBON | |
| 381 #define ENABLE_DRAWSPROCKET | |
| 382 #endif | |
| 383 #endif | |
| 384 #ifdef ENABLE_TOOLBOX | |
| 385 extern VideoBootStrap TOOLBOX_bootstrap; | |
| 386 #endif | |
| 387 #ifdef ENABLE_DRAWSPROCKET | |
| 388 extern VideoBootStrap DSp_bootstrap; | |
| 389 #endif | |
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390 #ifdef ENABLE_QUARTZ |
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391 extern VideoBootStrap QZ_bootstrap; |
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392 #endif |
| 0 | 393 #ifdef ENABLE_CYBERGRAPHICS |
| 394 extern VideoBootStrap CGX_bootstrap; | |
| 395 #endif | |
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396 #ifdef ENABLE_PHOTON |
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397 extern VideoBootStrap ph_bootstrap; |
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398 #endif |
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399 #ifdef ENABLE_EPOC |
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400 extern VideoBootStrap EPOC_bootstrap; |
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401 #endif |
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402 #ifdef ENABLE_DUMMYVIDEO |
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403 extern VideoBootStrap DUMMY_bootstrap; |
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404 #endif |
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405 #ifdef ENABLE_XBIOS |
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406 extern VideoBootStrap XBIOS_bootstrap; |
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407 #endif |
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408 #ifdef ENABLE_GEM |
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409 extern VideoBootStrap GEM_bootstrap; |
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410 #endif |
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411 #ifdef ENABLE_QTOPIA |
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412 extern VideoBootStrap Qtopia_bootstrap; |
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413 #endif |
| 1187 | 414 #ifdef ENABLE_WSCONS |
| 415 extern VideoBootStrap WSCONS_bootstrap; | |
| 416 #endif | |
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433
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417 #ifdef ENABLE_PICOGUI |
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418 extern VideoBootStrap PG_bootstrap; |
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419 #endif |
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420 #ifdef ENABLE_DC |
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421 extern VideoBootStrap DC_bootstrap; |
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422 #endif |
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423 #ifdef ENABLE_RISCOS |
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424 extern VideoBootStrap RISCOS_bootstrap; |
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425 #endif |
| 0 | 426 /* This is the current video device */ |
| 427 extern SDL_VideoDevice *current_video; | |
| 428 | |
| 429 #define SDL_VideoSurface (current_video->screen) | |
| 430 #define SDL_ShadowSurface (current_video->shadow) | |
| 431 #define SDL_PublicSurface (current_video->visible) | |
| 432 | |
| 433 #endif /* _SDL_sysvideo_h */ |