Mercurial > sdl-ios-xcode
annotate src/video/SDL_sysvideo.h @ 1361:19418e4422cb
New configure-based build system. Still work in progress, but much improved
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Thu, 16 Feb 2006 10:11:48 +0000 |
| parents | 450721ad5436 |
| children | d910939febfa |
| 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 #ifndef _SDL_sysvideo_h | |
| 24 #define _SDL_sysvideo_h | |
| 25 | |
| 26 #include "SDL_mouse.h" | |
| 27 #define SDL_PROTOTYPES_ONLY | |
| 28 #include "SDL_syswm.h" | |
| 29 #undef SDL_PROTOTYPES_ONLY | |
| 30 | |
| 31 /* This file prototypes the video driver implementation. | |
| 32 This is designed to be easily converted to C++ in the future. | |
| 33 */ | |
| 34 | |
| 35 /* OpenGL is pretty much available on all Windows systems */ | |
| 36 #ifdef WIN32 | |
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37 #include "SDL_windows.h" |
| 0 | 38 #endif |
| 39 | |
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40 #if SDL_VIDEO_OPENGL |
| 0 | 41 #ifdef MACOSX |
| 42 #include <OpenGL/gl.h> /* OpenGL.framework */ | |
| 43 #else | |
| 44 #include <GL/gl.h> | |
| 45 #endif /* MACOSX */ | |
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46 #endif /* SDL_VIDEO_OPENGL */ |
| 0 | 47 |
| 48 /* The SDL video driver */ | |
| 49 typedef struct SDL_VideoDevice SDL_VideoDevice; | |
| 50 | |
| 51 /* Define the SDL video driver structure */ | |
| 52 #define _THIS SDL_VideoDevice *_this | |
| 53 #ifndef _STATUS | |
| 54 #define _STATUS SDL_status *status | |
| 55 #endif | |
| 56 struct SDL_VideoDevice { | |
| 57 /* * * */ | |
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58 /* The name of this video driver */ |
| 0 | 59 const char *name; |
| 60 | |
| 61 /* * * */ | |
| 62 /* Initialization/Query functions */ | |
| 63 | |
| 64 /* Initialize the native video subsystem, filling 'vformat' with the | |
| 65 "best" display pixel format, returning 0 or -1 if there's an error. | |
| 66 */ | |
| 67 int (*VideoInit)(_THIS, SDL_PixelFormat *vformat); | |
| 68 | |
| 69 /* List the available video modes for the given pixel format, sorted | |
| 70 from largest to smallest. | |
| 71 */ | |
| 72 SDL_Rect **(*ListModes)(_THIS, SDL_PixelFormat *format, Uint32 flags); | |
| 73 | |
| 74 /* Set the requested video mode, returning a surface which will be | |
| 75 set to the SDL_VideoSurface. The width and height will already | |
| 76 be verified by ListModes(), and the video subsystem is free to | |
| 77 set the mode to a supported bit depth different from the one | |
| 78 specified -- the desired bpp will be emulated with a shadow | |
| 79 surface if necessary. If a new mode is returned, this function | |
| 80 should take care of cleaning up the current mode. | |
| 81 */ | |
| 82 SDL_Surface *(*SetVideoMode)(_THIS, SDL_Surface *current, | |
| 83 int width, int height, int bpp, Uint32 flags); | |
| 84 | |
| 85 /* Toggle the fullscreen mode */ | |
| 86 int (*ToggleFullScreen)(_THIS, int on); | |
| 87 | |
| 88 /* This is called after the video mode has been set, to get the | |
| 89 initial mouse state. It should queue events as necessary to | |
| 90 properly represent the current mouse focus and position. | |
| 91 */ | |
| 92 void (*UpdateMouse)(_THIS); | |
| 93 | |
| 94 /* Create a YUV video surface (possibly overlay) of the given | |
| 95 format. The hardware should be able to perform at least 2x | |
| 96 scaling on display. | |
| 97 */ | |
| 98 SDL_Overlay *(*CreateYUVOverlay)(_THIS, int width, int height, | |
| 99 Uint32 format, SDL_Surface *display); | |
| 100 | |
| 101 /* Sets the color entries { firstcolor .. (firstcolor+ncolors-1) } | |
| 102 of the physical palette to those in 'colors'. If the device is | |
| 103 using a software palette (SDL_HWPALETTE not set), then the | |
| 104 changes are reflected in the logical palette of the screen | |
| 105 as well. | |
| 106 The return value is 1 if all entries could be set properly | |
| 107 or 0 otherwise. | |
| 108 */ | |
| 109 int (*SetColors)(_THIS, int firstcolor, int ncolors, | |
| 110 SDL_Color *colors); | |
| 111 | |
| 112 /* This pointer should exist in the native video subsystem and should | |
| 113 point to an appropriate update function for the current video mode | |
| 114 */ | |
| 115 void (*UpdateRects)(_THIS, int numrects, SDL_Rect *rects); | |
| 116 | |
| 117 /* Reverse the effects VideoInit() -- called if VideoInit() fails | |
| 118 or if the application is shutting down the video subsystem. | |
| 119 */ | |
| 120 void (*VideoQuit)(_THIS); | |
| 121 | |
| 122 /* * * */ | |
| 123 /* Hardware acceleration functions */ | |
| 124 | |
| 125 /* Information about the video hardware */ | |
| 126 SDL_VideoInfo info; | |
| 127 | |
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128 /* The pixel format used when SDL_CreateRGBSurface creates SDL_HWSURFACEs with alpha */ |
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129 SDL_PixelFormat* displayformatalphapixel; |
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130 |
| 0 | 131 /* Allocates a surface in video memory */ |
| 132 int (*AllocHWSurface)(_THIS, SDL_Surface *surface); | |
| 133 | |
| 134 /* Sets the hardware accelerated blit function, if any, based | |
| 135 on the current flags of the surface (colorkey, alpha, etc.) | |
| 136 */ | |
| 137 int (*CheckHWBlit)(_THIS, SDL_Surface *src, SDL_Surface *dst); | |
| 138 | |
| 139 /* Fills a surface rectangle with the given color */ | |
| 140 int (*FillHWRect)(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color); | |
| 141 | |
| 142 /* Sets video mem colorkey and accelerated blit function */ | |
| 143 int (*SetHWColorKey)(_THIS, SDL_Surface *surface, Uint32 key); | |
| 144 | |
| 145 /* Sets per surface hardware alpha value */ | |
| 146 int (*SetHWAlpha)(_THIS, SDL_Surface *surface, Uint8 value); | |
| 147 | |
| 148 /* Returns a readable/writable surface */ | |
| 149 int (*LockHWSurface)(_THIS, SDL_Surface *surface); | |
| 150 void (*UnlockHWSurface)(_THIS, SDL_Surface *surface); | |
| 151 | |
| 152 /* Performs hardware flipping */ | |
| 153 int (*FlipHWSurface)(_THIS, SDL_Surface *surface); | |
| 154 | |
| 155 /* Frees a previously allocated video surface */ | |
| 156 void (*FreeHWSurface)(_THIS, SDL_Surface *surface); | |
| 157 | |
| 158 /* * * */ | |
| 159 /* Gamma support */ | |
| 160 | |
| 161 Uint16 *gamma; | |
| 162 | |
| 163 /* Set the gamma correction directly (emulated with gamma ramps) */ | |
| 164 int (*SetGamma)(_THIS, float red, float green, float blue); | |
| 165 | |
| 166 /* Get the gamma correction directly (emulated with gamma ramps) */ | |
| 167 int (*GetGamma)(_THIS, float *red, float *green, float *blue); | |
| 168 | |
| 169 /* Set the gamma ramp */ | |
| 170 int (*SetGammaRamp)(_THIS, Uint16 *ramp); | |
| 171 | |
| 172 /* Get the gamma ramp */ | |
| 173 int (*GetGammaRamp)(_THIS, Uint16 *ramp); | |
| 174 | |
| 175 /* * * */ | |
| 176 /* OpenGL support */ | |
| 177 | |
| 178 /* Sets the dll to use for OpenGL and loads it */ | |
| 179 int (*GL_LoadLibrary)(_THIS, const char *path); | |
| 180 | |
| 181 /* Retrieves the address of a function in the gl library */ | |
| 182 void* (*GL_GetProcAddress)(_THIS, const char *proc); | |
| 183 | |
| 184 /* Get attribute information from the windowing system. */ | |
| 185 int (*GL_GetAttribute)(_THIS, SDL_GLattr attrib, int* value); | |
| 186 | |
| 187 /* Make the context associated with this driver current */ | |
| 188 int (*GL_MakeCurrent)(_THIS); | |
| 189 | |
| 190 /* Swap the current buffers in double buffer mode. */ | |
| 191 void (*GL_SwapBuffers)(_THIS); | |
| 192 | |
| 193 /* OpenGL functions for SDL_OPENGLBLIT */ | |
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194 #if SDL_VIDEO_OPENGL |
| 0 | 195 #ifndef WIN32 |
| 196 #define WINAPI | |
| 197 #endif | |
| 198 #define SDL_PROC(ret,func,params) ret (WINAPI *func) params; | |
| 199 #include "SDL_glfuncs.h" | |
| 200 #undef SDL_PROC | |
| 201 | |
| 202 /* Texture id */ | |
| 203 GLuint texture; | |
| 204 #endif | |
| 205 int is_32bit; | |
| 206 | |
| 207 /* * * */ | |
| 208 /* Window manager functions */ | |
| 209 | |
| 210 /* Set the title and icon text */ | |
| 211 void (*SetCaption)(_THIS, const char *title, const char *icon); | |
| 212 | |
| 213 /* Set the window icon image */ | |
| 214 void (*SetIcon)(_THIS, SDL_Surface *icon, Uint8 *mask); | |
| 215 | |
| 216 /* Iconify the window. | |
| 217 This function returns 1 if there is a window manager and the | |
| 218 window was actually iconified, it returns 0 otherwise. | |
| 219 */ | |
| 220 int (*IconifyWindow)(_THIS); | |
| 221 | |
| 222 /* Grab or ungrab keyboard and mouse input */ | |
| 223 SDL_GrabMode (*GrabInput)(_THIS, SDL_GrabMode mode); | |
| 224 | |
| 225 /* Get some platform dependent window information */ | |
| 226 int (*GetWMInfo)(_THIS, SDL_SysWMinfo *info); | |
| 227 | |
| 228 /* * * */ | |
| 229 /* Cursor manager functions */ | |
| 230 | |
| 231 /* Free a window manager cursor | |
| 232 This function can be NULL if CreateWMCursor is also NULL. | |
| 233 */ | |
| 234 void (*FreeWMCursor)(_THIS, WMcursor *cursor); | |
| 235 | |
| 236 /* If not NULL, create a black/white window manager cursor */ | |
| 237 WMcursor *(*CreateWMCursor)(_THIS, | |
| 238 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y); | |
| 239 | |
| 240 /* Show the specified cursor, or hide if cursor is NULL */ | |
| 241 int (*ShowWMCursor)(_THIS, WMcursor *cursor); | |
| 242 | |
| 243 /* Warp the window manager cursor to (x,y) | |
| 244 If NULL, a mouse motion event is posted internally. | |
| 245 */ | |
| 246 void (*WarpWMCursor)(_THIS, Uint16 x, Uint16 y); | |
| 247 | |
| 248 /* If not NULL, this is called when a mouse motion event occurs */ | |
| 249 void (*MoveWMCursor)(_THIS, int x, int y); | |
| 250 | |
| 251 /* Determine whether the mouse should be in relative mode or not. | |
| 252 This function is called when the input grab state or cursor | |
| 253 visibility state changes. | |
| 254 If the cursor is not visible, and the input is grabbed, the | |
| 255 driver can place the mouse in relative mode, which may result | |
| 256 in higher accuracy sampling of the pointer motion. | |
| 257 */ | |
| 258 void (*CheckMouseMode)(_THIS); | |
| 259 | |
| 260 /* * * */ | |
| 261 /* Event manager functions */ | |
| 262 | |
| 263 /* Initialize keyboard mapping for this driver */ | |
| 264 void (*InitOSKeymap)(_THIS); | |
| 265 | |
| 266 /* Handle any queued OS events */ | |
| 267 void (*PumpEvents)(_THIS); | |
| 268 | |
| 269 /* * * */ | |
| 270 /* Data common to all drivers */ | |
| 271 SDL_Surface *screen; | |
| 272 SDL_Surface *shadow; | |
| 273 SDL_Surface *visible; | |
| 274 SDL_Palette *physpal; /* physical palette, if != logical palette */ | |
| 275 SDL_Color *gammacols; /* gamma-corrected colours, or NULL */ | |
| 276 char *wm_title; | |
| 277 char *wm_icon; | |
| 278 int offset_x; | |
| 279 int offset_y; | |
| 280 SDL_GrabMode input_grab; | |
| 281 | |
| 282 /* Driver information flags */ | |
| 283 int handles_any_size; /* Driver handles any size video mode */ | |
| 284 | |
| 285 /* * * */ | |
| 286 /* Data used by the GL drivers */ | |
| 287 struct { | |
| 288 int red_size; | |
| 289 int green_size; | |
| 290 int blue_size; | |
| 291 int alpha_size; | |
| 292 int depth_size; | |
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293 int buffer_size; |
| 0 | 294 int stencil_size; |
| 295 int double_buffer; | |
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296 int accum_red_size; |
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297 int accum_green_size; |
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298 int accum_blue_size; |
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299 int accum_alpha_size; |
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300 int stereo; |
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301 int multisamplebuffers; |
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302 int multisamplesamples; |
| 0 | 303 int driver_loaded; |
| 304 char driver_path[256]; | |
| 305 void* dll_handle; | |
| 306 } gl_config; | |
| 307 | |
| 308 /* * * */ | |
| 309 /* Data private to this driver */ | |
| 310 struct SDL_PrivateVideoData *hidden; | |
| 311 struct SDL_PrivateGLData *gl_data; | |
| 312 | |
| 313 /* * * */ | |
| 314 /* The function used to dispose of this structure */ | |
| 315 void (*free)(_THIS); | |
| 316 }; | |
| 317 #undef _THIS | |
| 318 | |
| 319 typedef struct VideoBootStrap { | |
| 320 const char *name; | |
| 321 const char *desc; | |
| 322 int (*available)(void); | |
| 323 SDL_VideoDevice *(*create)(int devindex); | |
| 324 } VideoBootStrap; | |
| 325 | |
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326 #if SDL_VIDEO_DRIVER_QUARTZ |
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327 extern VideoBootStrap QZ_bootstrap; |
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328 #endif |
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329 #if SDL_VIDEO_DRIVER_X11 |
| 0 | 330 extern VideoBootStrap X11_bootstrap; |
| 331 #endif | |
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332 #if SDL_VIDEO_DRIVER_DGA |
| 0 | 333 extern VideoBootStrap DGA_bootstrap; |
| 334 #endif | |
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335 #if SDL_VIDEO_DRIVER_NANOX |
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336 extern VideoBootStrap NX_bootstrap; |
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337 #endif |
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338 #if SDL_VIDEO_DRIVER_IPOD |
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339 extern VideoBootStrap iPod_bootstrap; |
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340 #endif |
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341 #if SDL_VIDEO_DRIVER_QTOPIA |
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342 extern VideoBootStrap Qtopia_bootstrap; |
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343 #endif |
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344 #if SDL_VIDEO_DRIVER_WSCONS |
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345 extern VideoBootStrap WSCONS_bootstrap; |
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346 #endif |
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347 #if SDL_VIDEO_DRIVER_FBCON |
| 0 | 348 extern VideoBootStrap FBCON_bootstrap; |
| 349 #endif | |
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350 #if SDL_VIDEO_DRIVER_DIRECTFB |
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351 extern VideoBootStrap DirectFB_bootstrap; |
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352 #endif |
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353 #if SDL_VIDEO_DRIVER_PS2GS |
| 0 | 354 extern VideoBootStrap PS2GS_bootstrap; |
| 355 #endif | |
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356 #if SDL_VIDEO_DRIVER_GGI |
| 0 | 357 extern VideoBootStrap GGI_bootstrap; |
| 358 #endif | |
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359 #if SDL_VIDEO_DRIVER_VGL |
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360 extern VideoBootStrap VGL_bootstrap; |
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361 #endif |
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362 #if SDL_VIDEO_DRIVER_SVGALIB |
| 0 | 363 extern VideoBootStrap SVGALIB_bootstrap; |
| 364 #endif | |
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365 #if SDL_VIDEO_DRIVER_GAPI |
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366 extern VideoBootStrap GAPI_bootstrap; |
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367 #endif |
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368 #if SDL_VIDEO_DRIVER_WINDIB |
| 0 | 369 extern VideoBootStrap WINDIB_bootstrap; |
| 370 #endif | |
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371 #if SDL_VIDEO_DRIVER_DDRAW |
| 0 | 372 extern VideoBootStrap DIRECTX_bootstrap; |
| 373 #endif | |
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374 #if SDL_VIDEO_DRIVER_BWINDOW |
| 0 | 375 extern VideoBootStrap BWINDOW_bootstrap; |
| 376 #endif | |
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377 #if SDL_VIDEO_DRIVER_TOOLBOX |
| 0 | 378 extern VideoBootStrap TOOLBOX_bootstrap; |
| 379 #endif | |
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380 #if SDL_VIDEO_DRIVER_DRAWSPROCKET |
| 0 | 381 extern VideoBootStrap DSp_bootstrap; |
| 382 #endif | |
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383 #if SDL_VIDEO_DRIVER_CYBERGRAPHICS |
| 0 | 384 extern VideoBootStrap CGX_bootstrap; |
| 385 #endif | |
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386 #if SDL_VIDEO_DRIVER_PHOTON |
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387 extern VideoBootStrap ph_bootstrap; |
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388 #endif |
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389 #if SDL_VIDEO_DRIVER_EPOC |
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390 extern VideoBootStrap EPOC_bootstrap; |
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391 #endif |
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392 #if SDL_VIDEO_DRIVER_XBIOS |
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393 extern VideoBootStrap XBIOS_bootstrap; |
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394 #endif |
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395 #if SDL_VIDEO_DRIVER_GEM |
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396 extern VideoBootStrap GEM_bootstrap; |
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397 #endif |
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398 #if SDL_VIDEO_DRIVER_PICOGUI |
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399 extern VideoBootStrap PG_bootstrap; |
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400 #endif |
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401 #if SDL_VIDEO_DRIVER_DC |
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402 extern VideoBootStrap DC_bootstrap; |
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403 #endif |
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404 #if SDL_VIDEO_DRIVER_RISCOS |
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405 extern VideoBootStrap RISCOS_bootstrap; |
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406 #endif |
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407 #if SDL_VIDEO_DRIVER_OS2FS |
| 1190 | 408 extern VideoBootStrap OS2FSLib_bootstrap; |
| 409 #endif | |
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410 #if SDL_VIDEO_DRIVER_AALIB |
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411 extern VideoBootStrap AALIB_bootstrap; |
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412 #endif |
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413 #if SDL_VIDEO_DRIVER_DUMMY |
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414 extern VideoBootStrap DUMMY_bootstrap; |
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415 #endif |
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416 |
| 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 */ |