| e14743d1 |
1 | /* |
| 2 | SDL - Simple DirectMedia Layer |
| 3 | Copyright (C) 1997-2009 Sam Lantinga |
| 4 | |
| 5 | This library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 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 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with this library; if not, write to the Free Software |
| 17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | |
| 19 | Sam Lantinga |
| 20 | slouken@libsdl.org |
| 21 | */ |
| 22 | #include "SDL_config.h" |
| 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 | |
| 36 | #if SDL_VIDEO_OPENGL |
| 37 | #include "SDL_opengl.h" |
| 38 | #endif /* SDL_VIDEO_OPENGL */ |
| 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 | /* * * */ |
| 50 | /* The name of this video driver */ |
| 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 | |
| 120 | /* The pixel format used when SDL_CreateRGBSurface creates SDL_HWSURFACEs with alpha */ |
| 121 | SDL_PixelFormat* displayformatalphapixel; |
| 122 | |
| 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 | |
| 176 | /* Get attribute information from the windowing system. */ |
| 177 | int (*GL_GetAttribute)(_THIS, SDL_GLattr attrib, int* value); |
| 178 | |
| 179 | /* Make the context associated with this driver current */ |
| 180 | int (*GL_MakeCurrent)(_THIS); |
| 181 | |
| 182 | /* Swap the current buffers in double buffer mode. */ |
| 183 | void (*GL_SwapBuffers)(_THIS); |
| 184 | |
| 185 | /* OpenGL functions for SDL_OPENGLBLIT */ |
| 186 | #if SDL_VIDEO_OPENGL |
| 187 | #if !defined(__WIN32__) |
| 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; |
| 285 | int buffer_size; |
| 286 | int stencil_size; |
| 287 | int double_buffer; |
| 288 | int accum_red_size; |
| 289 | int accum_green_size; |
| 290 | int accum_blue_size; |
| 291 | int accum_alpha_size; |
| 292 | int stereo; |
| 293 | int multisamplebuffers; |
| 294 | int multisamplesamples; |
| 295 | int accelerated; |
| 296 | int swap_control; |
| 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 | |
| 320 | #if SDL_VIDEO_DRIVER_QUARTZ |
| 321 | extern VideoBootStrap QZ_bootstrap; |
| 322 | #endif |
| 323 | #if SDL_VIDEO_DRIVER_X11 |
| 324 | extern VideoBootStrap X11_bootstrap; |
| 325 | #endif |
| 326 | #if SDL_VIDEO_DRIVER_DGA |
| 327 | extern VideoBootStrap DGA_bootstrap; |
| 328 | #endif |
| 329 | #if SDL_VIDEO_DRIVER_NANOX |
| 330 | extern VideoBootStrap NX_bootstrap; |
| 331 | #endif |
| 332 | #if SDL_VIDEO_DRIVER_IPOD |
| 333 | extern VideoBootStrap iPod_bootstrap; |
| 334 | #endif |
| 335 | #if SDL_VIDEO_DRIVER_QTOPIA |
| 336 | extern VideoBootStrap Qtopia_bootstrap; |
| 337 | #endif |
| 338 | #if SDL_VIDEO_DRIVER_WSCONS |
| 339 | extern VideoBootStrap WSCONS_bootstrap; |
| 340 | #endif |
| 341 | #if SDL_VIDEO_DRIVER_FBCON |
| 342 | extern VideoBootStrap FBCON_bootstrap; |
| 343 | #endif |
| 344 | #if SDL_VIDEO_DRIVER_DIRECTFB |
| 345 | extern VideoBootStrap DirectFB_bootstrap; |
| 346 | #endif |
| 347 | #if SDL_VIDEO_DRIVER_PS2GS |
| 348 | extern VideoBootStrap PS2GS_bootstrap; |
| 349 | #endif |
| 350 | #if SDL_VIDEO_DRIVER_PS3 |
| 351 | extern VideoBootStrap PS3_bootstrap; |
| 352 | #endif |
| 353 | #if SDL_VIDEO_DRIVER_GGI |
| 354 | extern VideoBootStrap GGI_bootstrap; |
| 355 | #endif |
| 356 | #if SDL_VIDEO_DRIVER_VGL |
| 357 | extern VideoBootStrap VGL_bootstrap; |
| 358 | #endif |
| 359 | #if SDL_VIDEO_DRIVER_SVGALIB |
| 360 | extern VideoBootStrap SVGALIB_bootstrap; |
| 361 | #endif |
| 362 | #if SDL_VIDEO_DRIVER_GAPI |
| 363 | extern VideoBootStrap GAPI_bootstrap; |
| 364 | #endif |
| 365 | #if SDL_VIDEO_DRIVER_WINDIB |
| 366 | extern VideoBootStrap WINDIB_bootstrap; |
| 367 | #endif |
| 368 | #if SDL_VIDEO_DRIVER_DDRAW |
| 369 | extern VideoBootStrap DIRECTX_bootstrap; |
| 370 | #endif |
| 371 | #if SDL_VIDEO_DRIVER_BWINDOW |
| 372 | extern VideoBootStrap BWINDOW_bootstrap; |
| 373 | #endif |
| 374 | #if SDL_VIDEO_DRIVER_TOOLBOX |
| 375 | extern VideoBootStrap TOOLBOX_bootstrap; |
| 376 | #endif |
| 377 | #if SDL_VIDEO_DRIVER_DRAWSPROCKET |
| 378 | extern VideoBootStrap DSp_bootstrap; |
| 379 | #endif |
| 380 | #if SDL_VIDEO_DRIVER_PHOTON |
| 381 | extern VideoBootStrap ph_bootstrap; |
| 382 | #endif |
| 383 | #if SDL_VIDEO_DRIVER_EPOC |
| 384 | extern VideoBootStrap EPOC_bootstrap; |
| 385 | #endif |
| 386 | #if SDL_VIDEO_DRIVER_XBIOS |
| 387 | extern VideoBootStrap XBIOS_bootstrap; |
| 388 | #endif |
| 389 | #if SDL_VIDEO_DRIVER_GEM |
| 390 | extern VideoBootStrap GEM_bootstrap; |
| 391 | #endif |
| 392 | #if SDL_VIDEO_DRIVER_PICOGUI |
| 393 | extern VideoBootStrap PG_bootstrap; |
| 394 | #endif |
| 395 | #if SDL_VIDEO_DRIVER_DC |
| 396 | extern VideoBootStrap DC_bootstrap; |
| 397 | #endif |
| 398 | #if SDL_VIDEO_DRIVER_NDS |
| 399 | extern VideoBootStrap NDS_bootstrap; |
| 400 | #endif |
| 401 | #if SDL_VIDEO_DRIVER_RISCOS |
| 402 | extern VideoBootStrap RISCOS_bootstrap; |
| 403 | #endif |
| 404 | #if SDL_VIDEO_DRIVER_OS2FS |
| 405 | extern VideoBootStrap OS2FSLib_bootstrap; |
| 406 | #endif |
| 407 | #if SDL_VIDEO_DRIVER_AALIB |
| 408 | extern VideoBootStrap AALIB_bootstrap; |
| 409 | #endif |
| 410 | #if SDL_VIDEO_DRIVER_CACA |
| 411 | extern VideoBootStrap CACA_bootstrap; |
| 412 | #endif |
| 9a8e84f8 |
413 | #if SDL_VIDEO_DRIVER_OMAPDSS |
| 414 | extern VideoBootStrap omapdss_bootstrap; |
| 415 | #endif |
| e14743d1 |
416 | #if SDL_VIDEO_DRIVER_DUMMY |
| 417 | extern VideoBootStrap DUMMY_bootstrap; |
| 418 | #endif |
| 419 | |
| 420 | /* This is the current video device */ |
| 421 | extern SDL_VideoDevice *current_video; |
| 422 | |
| 423 | #define SDL_VideoSurface (current_video->screen) |
| 424 | #define SDL_ShadowSurface (current_video->shadow) |
| 425 | #define SDL_PublicSurface (current_video->visible) |
| 426 | |
| 427 | #endif /* _SDL_sysvideo_h */ |
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