Mercurial > sdl-ios-xcode
annotate src/video/SDL_sysvideo.h @ 3932:cd5b5c52a37e SDL-1.2
Const correctness patch for SDL_MapRGB and SDL_MapRGBA.
Fixes Bugzilla #421.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Wed, 04 Apr 2007 09:40:40 +0000 |
| parents | 67d518069d9a |
| children | 8582c6a5ca16 b8de86ee2ad6 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
|
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6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
|
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 9 |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
|
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13 Lesser General Public License for more details. |
| 0 | 14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
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22 #include "SDL_config.h" |
| 0 | 23 |
| 24 #ifndef _SDL_sysvideo_h | |
| 25 #define _SDL_sysvideo_h | |
| 26 | |
| 27 #include "SDL_mouse.h" | |
| 28 #define SDL_PROTOTYPES_ONLY | |
| 29 #include "SDL_syswm.h" | |
| 30 #undef SDL_PROTOTYPES_ONLY | |
| 31 | |
| 32 /* This file prototypes the video driver implementation. | |
| 33 This is designed to be easily converted to C++ in the future. | |
| 34 */ | |
| 35 | |
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36 #if SDL_VIDEO_OPENGL |
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37 #include "SDL_opengl.h" |
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38 #endif /* SDL_VIDEO_OPENGL */ |
| 0 | 39 |
| 40 /* The SDL video driver */ | |
| 41 typedef struct SDL_VideoDevice SDL_VideoDevice; | |
| 42 | |
| 43 /* Define the SDL video driver structure */ | |
| 44 #define _THIS SDL_VideoDevice *_this | |
| 45 #ifndef _STATUS | |
| 46 #define _STATUS SDL_status *status | |
| 47 #endif | |
| 48 struct SDL_VideoDevice { | |
| 49 /* * * */ | |
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50 /* The name of this video driver */ |
| 0 | 51 const char *name; |
| 52 | |
| 53 /* * * */ | |
| 54 /* Initialization/Query functions */ | |
| 55 | |
| 56 /* Initialize the native video subsystem, filling 'vformat' with the | |
| 57 "best" display pixel format, returning 0 or -1 if there's an error. | |
| 58 */ | |
| 59 int (*VideoInit)(_THIS, SDL_PixelFormat *vformat); | |
| 60 | |
| 61 /* List the available video modes for the given pixel format, sorted | |
| 62 from largest to smallest. | |
| 63 */ | |
| 64 SDL_Rect **(*ListModes)(_THIS, SDL_PixelFormat *format, Uint32 flags); | |
| 65 | |
| 66 /* Set the requested video mode, returning a surface which will be | |
| 67 set to the SDL_VideoSurface. The width and height will already | |
| 68 be verified by ListModes(), and the video subsystem is free to | |
| 69 set the mode to a supported bit depth different from the one | |
| 70 specified -- the desired bpp will be emulated with a shadow | |
| 71 surface if necessary. If a new mode is returned, this function | |
| 72 should take care of cleaning up the current mode. | |
| 73 */ | |
| 74 SDL_Surface *(*SetVideoMode)(_THIS, SDL_Surface *current, | |
| 75 int width, int height, int bpp, Uint32 flags); | |
| 76 | |
| 77 /* Toggle the fullscreen mode */ | |
| 78 int (*ToggleFullScreen)(_THIS, int on); | |
| 79 | |
| 80 /* This is called after the video mode has been set, to get the | |
| 81 initial mouse state. It should queue events as necessary to | |
| 82 properly represent the current mouse focus and position. | |
| 83 */ | |
| 84 void (*UpdateMouse)(_THIS); | |
| 85 | |
| 86 /* Create a YUV video surface (possibly overlay) of the given | |
| 87 format. The hardware should be able to perform at least 2x | |
| 88 scaling on display. | |
| 89 */ | |
| 90 SDL_Overlay *(*CreateYUVOverlay)(_THIS, int width, int height, | |
| 91 Uint32 format, SDL_Surface *display); | |
| 92 | |
| 93 /* Sets the color entries { firstcolor .. (firstcolor+ncolors-1) } | |
| 94 of the physical palette to those in 'colors'. If the device is | |
| 95 using a software palette (SDL_HWPALETTE not set), then the | |
| 96 changes are reflected in the logical palette of the screen | |
| 97 as well. | |
| 98 The return value is 1 if all entries could be set properly | |
| 99 or 0 otherwise. | |
| 100 */ | |
| 101 int (*SetColors)(_THIS, int firstcolor, int ncolors, | |
| 102 SDL_Color *colors); | |
| 103 | |
| 104 /* This pointer should exist in the native video subsystem and should | |
| 105 point to an appropriate update function for the current video mode | |
| 106 */ | |
| 107 void (*UpdateRects)(_THIS, int numrects, SDL_Rect *rects); | |
| 108 | |
| 109 /* Reverse the effects VideoInit() -- called if VideoInit() fails | |
| 110 or if the application is shutting down the video subsystem. | |
| 111 */ | |
| 112 void (*VideoQuit)(_THIS); | |
| 113 | |
| 114 /* * * */ | |
| 115 /* Hardware acceleration functions */ | |
| 116 | |
| 117 /* Information about the video hardware */ | |
| 118 SDL_VideoInfo info; | |
| 119 | |
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120 /* The pixel format used when SDL_CreateRGBSurface creates SDL_HWSURFACEs with alpha */ |
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121 SDL_PixelFormat* displayformatalphapixel; |
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122 |
| 0 | 123 /* Allocates a surface in video memory */ |
| 124 int (*AllocHWSurface)(_THIS, SDL_Surface *surface); | |
| 125 | |
| 126 /* Sets the hardware accelerated blit function, if any, based | |
| 127 on the current flags of the surface (colorkey, alpha, etc.) | |
| 128 */ | |
| 129 int (*CheckHWBlit)(_THIS, SDL_Surface *src, SDL_Surface *dst); | |
| 130 | |
| 131 /* Fills a surface rectangle with the given color */ | |
| 132 int (*FillHWRect)(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color); | |
| 133 | |
| 134 /* Sets video mem colorkey and accelerated blit function */ | |
| 135 int (*SetHWColorKey)(_THIS, SDL_Surface *surface, Uint32 key); | |
| 136 | |
| 137 /* Sets per surface hardware alpha value */ | |
| 138 int (*SetHWAlpha)(_THIS, SDL_Surface *surface, Uint8 value); | |
| 139 | |
| 140 /* Returns a readable/writable surface */ | |
| 141 int (*LockHWSurface)(_THIS, SDL_Surface *surface); | |
| 142 void (*UnlockHWSurface)(_THIS, SDL_Surface *surface); | |
| 143 | |
| 144 /* Performs hardware flipping */ | |
| 145 int (*FlipHWSurface)(_THIS, SDL_Surface *surface); | |
| 146 | |
| 147 /* Frees a previously allocated video surface */ | |
| 148 void (*FreeHWSurface)(_THIS, SDL_Surface *surface); | |
| 149 | |
| 150 /* * * */ | |
| 151 /* Gamma support */ | |
| 152 | |
| 153 Uint16 *gamma; | |
| 154 | |
| 155 /* Set the gamma correction directly (emulated with gamma ramps) */ | |
| 156 int (*SetGamma)(_THIS, float red, float green, float blue); | |
| 157 | |
| 158 /* Get the gamma correction directly (emulated with gamma ramps) */ | |
| 159 int (*GetGamma)(_THIS, float *red, float *green, float *blue); | |
| 160 | |
| 161 /* Set the gamma ramp */ | |
| 162 int (*SetGammaRamp)(_THIS, Uint16 *ramp); | |
| 163 | |
| 164 /* Get the gamma ramp */ | |
| 165 int (*GetGammaRamp)(_THIS, Uint16 *ramp); | |
| 166 | |
| 167 /* * * */ | |
| 168 /* OpenGL support */ | |
| 169 | |
| 170 /* Sets the dll to use for OpenGL and loads it */ | |
| 171 int (*GL_LoadLibrary)(_THIS, const char *path); | |
| 172 | |
| 173 /* Retrieves the address of a function in the gl library */ | |
| 174 void* (*GL_GetProcAddress)(_THIS, const char *proc); | |
| 175 | |
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176 /* Get attribute information from the windowing system. */ |
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177 int (*GL_GetAttribute)(_THIS, SDL_GLattr attrib, int* value); |
| 0 | 178 |
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179 /* Make the context associated with this driver current */ |
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180 int (*GL_MakeCurrent)(_THIS); |
| 0 | 181 |
| 182 /* Swap the current buffers in double buffer mode. */ | |
| 183 void (*GL_SwapBuffers)(_THIS); | |
| 184 | |
| 185 /* OpenGL functions for SDL_OPENGLBLIT */ | |
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186 #if SDL_VIDEO_OPENGL |
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187 #if !defined(__WIN32__) |
| 0 | 188 #define WINAPI |
| 189 #endif | |
| 190 #define SDL_PROC(ret,func,params) ret (WINAPI *func) params; | |
| 191 #include "SDL_glfuncs.h" | |
| 192 #undef SDL_PROC | |
| 193 | |
| 194 /* Texture id */ | |
| 195 GLuint texture; | |
| 196 #endif | |
| 197 int is_32bit; | |
| 198 | |
| 199 /* * * */ | |
| 200 /* Window manager functions */ | |
| 201 | |
| 202 /* Set the title and icon text */ | |
| 203 void (*SetCaption)(_THIS, const char *title, const char *icon); | |
| 204 | |
| 205 /* Set the window icon image */ | |
| 206 void (*SetIcon)(_THIS, SDL_Surface *icon, Uint8 *mask); | |
| 207 | |
| 208 /* Iconify the window. | |
| 209 This function returns 1 if there is a window manager and the | |
| 210 window was actually iconified, it returns 0 otherwise. | |
| 211 */ | |
| 212 int (*IconifyWindow)(_THIS); | |
| 213 | |
| 214 /* Grab or ungrab keyboard and mouse input */ | |
| 215 SDL_GrabMode (*GrabInput)(_THIS, SDL_GrabMode mode); | |
| 216 | |
| 217 /* Get some platform dependent window information */ | |
| 218 int (*GetWMInfo)(_THIS, SDL_SysWMinfo *info); | |
| 219 | |
| 220 /* * * */ | |
| 221 /* Cursor manager functions */ | |
| 222 | |
| 223 /* Free a window manager cursor | |
| 224 This function can be NULL if CreateWMCursor is also NULL. | |
| 225 */ | |
| 226 void (*FreeWMCursor)(_THIS, WMcursor *cursor); | |
| 227 | |
| 228 /* If not NULL, create a black/white window manager cursor */ | |
| 229 WMcursor *(*CreateWMCursor)(_THIS, | |
| 230 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y); | |
| 231 | |
| 232 /* Show the specified cursor, or hide if cursor is NULL */ | |
| 233 int (*ShowWMCursor)(_THIS, WMcursor *cursor); | |
| 234 | |
| 235 /* Warp the window manager cursor to (x,y) | |
| 236 If NULL, a mouse motion event is posted internally. | |
| 237 */ | |
| 238 void (*WarpWMCursor)(_THIS, Uint16 x, Uint16 y); | |
| 239 | |
| 240 /* If not NULL, this is called when a mouse motion event occurs */ | |
| 241 void (*MoveWMCursor)(_THIS, int x, int y); | |
| 242 | |
| 243 /* Determine whether the mouse should be in relative mode or not. | |
| 244 This function is called when the input grab state or cursor | |
| 245 visibility state changes. | |
| 246 If the cursor is not visible, and the input is grabbed, the | |
| 247 driver can place the mouse in relative mode, which may result | |
| 248 in higher accuracy sampling of the pointer motion. | |
| 249 */ | |
| 250 void (*CheckMouseMode)(_THIS); | |
| 251 | |
| 252 /* * * */ | |
| 253 /* Event manager functions */ | |
| 254 | |
| 255 /* Initialize keyboard mapping for this driver */ | |
| 256 void (*InitOSKeymap)(_THIS); | |
| 257 | |
| 258 /* Handle any queued OS events */ | |
| 259 void (*PumpEvents)(_THIS); | |
| 260 | |
| 261 /* * * */ | |
| 262 /* Data common to all drivers */ | |
| 263 SDL_Surface *screen; | |
| 264 SDL_Surface *shadow; | |
| 265 SDL_Surface *visible; | |
| 266 SDL_Palette *physpal; /* physical palette, if != logical palette */ | |
| 267 SDL_Color *gammacols; /* gamma-corrected colours, or NULL */ | |
| 268 char *wm_title; | |
| 269 char *wm_icon; | |
| 270 int offset_x; | |
| 271 int offset_y; | |
| 272 SDL_GrabMode input_grab; | |
| 273 | |
| 274 /* Driver information flags */ | |
| 275 int handles_any_size; /* Driver handles any size video mode */ | |
| 276 | |
| 277 /* * * */ | |
| 278 /* Data used by the GL drivers */ | |
| 279 struct { | |
| 280 int red_size; | |
| 281 int green_size; | |
| 282 int blue_size; | |
| 283 int alpha_size; | |
| 284 int depth_size; | |
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285 int buffer_size; |
| 0 | 286 int stencil_size; |
| 287 int double_buffer; | |
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288 int accum_red_size; |
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289 int accum_green_size; |
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290 int accum_blue_size; |
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291 int accum_alpha_size; |
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292 int stereo; |
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293 int multisamplebuffers; |
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294 int multisamplesamples; |
| 1737 | 295 int accelerated; |
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296 int swap_control; |
| 0 | 297 int driver_loaded; |
| 298 char driver_path[256]; | |
| 299 void* dll_handle; | |
| 300 } gl_config; | |
| 301 | |
| 302 /* * * */ | |
| 303 /* Data private to this driver */ | |
| 304 struct SDL_PrivateVideoData *hidden; | |
| 305 struct SDL_PrivateGLData *gl_data; | |
| 306 | |
| 307 /* * * */ | |
| 308 /* The function used to dispose of this structure */ | |
| 309 void (*free)(_THIS); | |
| 310 }; | |
| 311 #undef _THIS | |
| 312 | |
| 313 typedef struct VideoBootStrap { | |
| 314 const char *name; | |
| 315 const char *desc; | |
| 316 int (*available)(void); | |
| 317 SDL_VideoDevice *(*create)(int devindex); | |
| 318 } VideoBootStrap; | |
| 319 | |
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320 #if SDL_VIDEO_DRIVER_QUARTZ |
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321 extern VideoBootStrap QZ_bootstrap; |
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322 #endif |
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323 #if SDL_VIDEO_DRIVER_X11 |
| 0 | 324 extern VideoBootStrap X11_bootstrap; |
| 325 #endif | |
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326 #if SDL_VIDEO_DRIVER_DGA |
| 0 | 327 extern VideoBootStrap DGA_bootstrap; |
| 328 #endif | |
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329 #if SDL_VIDEO_DRIVER_NANOX |
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330 extern VideoBootStrap NX_bootstrap; |
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331 #endif |
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332 #if SDL_VIDEO_DRIVER_IPOD |
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333 extern VideoBootStrap iPod_bootstrap; |
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334 #endif |
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335 #if SDL_VIDEO_DRIVER_QTOPIA |
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336 extern VideoBootStrap Qtopia_bootstrap; |
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337 #endif |
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338 #if SDL_VIDEO_DRIVER_WSCONS |
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339 extern VideoBootStrap WSCONS_bootstrap; |
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340 #endif |
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341 #if SDL_VIDEO_DRIVER_FBCON |
| 0 | 342 extern VideoBootStrap FBCON_bootstrap; |
| 343 #endif | |
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344 #if SDL_VIDEO_DRIVER_DIRECTFB |
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345 extern VideoBootStrap DirectFB_bootstrap; |
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346 #endif |
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347 #if SDL_VIDEO_DRIVER_PS2GS |
| 0 | 348 extern VideoBootStrap PS2GS_bootstrap; |
| 349 #endif | |
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350 #if SDL_VIDEO_DRIVER_GGI |
| 0 | 351 extern VideoBootStrap GGI_bootstrap; |
| 352 #endif | |
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353 #if SDL_VIDEO_DRIVER_VGL |
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354 extern VideoBootStrap VGL_bootstrap; |
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355 #endif |
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356 #if SDL_VIDEO_DRIVER_SVGALIB |
| 0 | 357 extern VideoBootStrap SVGALIB_bootstrap; |
| 358 #endif | |
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359 #if SDL_VIDEO_DRIVER_GAPI |
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360 extern VideoBootStrap GAPI_bootstrap; |
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361 #endif |
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362 #if SDL_VIDEO_DRIVER_WINDIB |
| 0 | 363 extern VideoBootStrap WINDIB_bootstrap; |
| 364 #endif | |
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365 #if SDL_VIDEO_DRIVER_DDRAW |
| 0 | 366 extern VideoBootStrap DIRECTX_bootstrap; |
| 367 #endif | |
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368 #if SDL_VIDEO_DRIVER_BWINDOW |
| 0 | 369 extern VideoBootStrap BWINDOW_bootstrap; |
| 370 #endif | |
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371 #if SDL_VIDEO_DRIVER_TOOLBOX |
| 0 | 372 extern VideoBootStrap TOOLBOX_bootstrap; |
| 373 #endif | |
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374 #if SDL_VIDEO_DRIVER_DRAWSPROCKET |
| 0 | 375 extern VideoBootStrap DSp_bootstrap; |
| 376 #endif | |
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377 #if SDL_VIDEO_DRIVER_PHOTON |
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378 extern VideoBootStrap ph_bootstrap; |
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379 #endif |
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380 #if SDL_VIDEO_DRIVER_EPOC |
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381 extern VideoBootStrap EPOC_bootstrap; |
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382 #endif |
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383 #if SDL_VIDEO_DRIVER_XBIOS |
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384 extern VideoBootStrap XBIOS_bootstrap; |
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385 #endif |
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386 #if SDL_VIDEO_DRIVER_GEM |
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387 extern VideoBootStrap GEM_bootstrap; |
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388 #endif |
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389 #if SDL_VIDEO_DRIVER_PICOGUI |
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390 extern VideoBootStrap PG_bootstrap; |
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391 #endif |
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392 #if SDL_VIDEO_DRIVER_DC |
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393 extern VideoBootStrap DC_bootstrap; |
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394 #endif |
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395 #if SDL_VIDEO_DRIVER_RISCOS |
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396 extern VideoBootStrap RISCOS_bootstrap; |
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397 #endif |
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398 #if SDL_VIDEO_DRIVER_OS2FS |
| 1190 | 399 extern VideoBootStrap OS2FSLib_bootstrap; |
| 400 #endif | |
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401 #if SDL_VIDEO_DRIVER_AALIB |
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402 extern VideoBootStrap AALIB_bootstrap; |
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403 #endif |
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404 #if SDL_VIDEO_DRIVER_DUMMY |
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405 extern VideoBootStrap DUMMY_bootstrap; |
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406 #endif |
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407 |
| 0 | 408 /* This is the current video device */ |
| 409 extern SDL_VideoDevice *current_video; | |
| 410 | |
| 411 #define SDL_VideoSurface (current_video->screen) | |
| 412 #define SDL_ShadowSurface (current_video->shadow) | |
| 413 #define SDL_PublicSurface (current_video->visible) | |
| 414 | |
| 415 #endif /* _SDL_sysvideo_h */ |