Mercurial > sdl-ios-xcode
annotate src/video/windib/SDL_dibvideo.c @ 477:22581630aab7
Date: Tue, 27 Aug 2002 16:14:11 +0200
From: Denis Oliver Kropp
Subject: Palette support and 8bit color keying fix
This patch adds support for 8bit palette modes dropping
the RGB332 stuff. It also fixes color keying for 8bit.
testsprite (without -bpp >8) looks correct again.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 31 Aug 2002 04:06:37 +0000 |
| parents | a6fa62b1be09 |
| children | 1080bfc4aa96 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
| 3 Copyright (C) 1997, 1998, 1999 Sam Lantinga | |
| 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 #include <stdio.h> | |
| 29 #include <stdlib.h> | |
| 30 #include <malloc.h> | |
| 31 #include <windows.h> | |
| 32 | |
| 33 /* Not yet in the mingw32 cross-compile headers */ | |
| 34 #ifndef CDS_FULLSCREEN | |
| 35 #define CDS_FULLSCREEN 4 | |
| 36 #endif | |
| 37 | |
| 38 #include "SDL.h" | |
| 39 #include "SDL_mutex.h" | |
| 40 #include "SDL_syswm.h" | |
| 41 #include "SDL_sysvideo.h" | |
| 42 #include "SDL_sysevents.h" | |
| 43 #include "SDL_events_c.h" | |
| 44 #include "SDL_pixels_c.h" | |
| 45 #include "SDL_dibvideo.h" | |
| 46 #include "SDL_syswm_c.h" | |
| 47 #include "SDL_sysmouse_c.h" | |
| 48 #include "SDL_dibevents_c.h" | |
| 49 #include "SDL_wingl_c.h" | |
| 50 | |
| 51 #ifdef _WIN32_WCE | |
| 52 #define NO_GETDIBITS | |
| 53 #define NO_CHANGEDISPLAYSETTINGS | |
| 54 #define NO_GAMMA_SUPPORT | |
| 55 #endif | |
|
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56 #ifndef WS_MAXIMIZE |
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57 #define WS_MAXIMIZE 0 |
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58 #endif |
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59 #ifndef SWP_NOCOPYBITS |
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60 #define SWP_NOCOPYBITS 0 |
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61 #endif |
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62 #ifndef PC_NOCOLLAPSE |
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63 #define PC_NOCOLLAPSE 0 |
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64 #endif |
| 0 | 65 |
| 66 /* Initialization/Query functions */ | |
| 67 static int DIB_VideoInit(_THIS, SDL_PixelFormat *vformat); | |
| 68 static SDL_Rect **DIB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); | |
| 69 SDL_Surface *DIB_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | |
| 70 static int DIB_SetColors(_THIS, int firstcolor, int ncolors, | |
| 71 SDL_Color *colors); | |
| 72 static void DIB_CheckGamma(_THIS); | |
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73 void DIB_SwapGamma(_THIS); |
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74 void DIB_QuitGamma(_THIS); |
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75 int DIB_SetGammaRamp(_THIS, Uint16 *ramp); |
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76 int DIB_GetGammaRamp(_THIS, Uint16 *ramp); |
| 0 | 77 static void DIB_VideoQuit(_THIS); |
| 78 | |
| 79 /* Hardware surface functions */ | |
| 80 static int DIB_AllocHWSurface(_THIS, SDL_Surface *surface); | |
| 81 static int DIB_LockHWSurface(_THIS, SDL_Surface *surface); | |
| 82 static void DIB_UnlockHWSurface(_THIS, SDL_Surface *surface); | |
| 83 static void DIB_FreeHWSurface(_THIS, SDL_Surface *surface); | |
| 84 | |
| 85 /* Windows message handling functions */ | |
| 86 static void DIB_RealizePalette(_THIS); | |
| 87 static void DIB_PaletteChanged(_THIS, HWND window); | |
| 88 static void DIB_WinPAINT(_THIS, HDC hdc); | |
| 89 | |
| 90 /* helper fn */ | |
| 91 static int DIB_SussScreenDepth(); | |
| 92 | |
| 93 /* DIB driver bootstrap functions */ | |
| 94 | |
| 95 static int DIB_Available(void) | |
| 96 { | |
| 97 return(1); | |
| 98 } | |
| 99 | |
| 100 static void DIB_DeleteDevice(SDL_VideoDevice *device) | |
| 101 { | |
| 102 if ( device ) { | |
| 103 if ( device->hidden ) { | |
| 104 free(device->hidden); | |
| 105 } | |
| 106 if ( device->gl_data ) { | |
| 107 free(device->gl_data); | |
| 108 } | |
| 109 free(device); | |
| 110 } | |
| 111 } | |
| 112 | |
| 113 static SDL_VideoDevice *DIB_CreateDevice(int devindex) | |
| 114 { | |
| 115 SDL_VideoDevice *device; | |
| 116 | |
| 117 /* Initialize all variables that we clean on shutdown */ | |
| 118 device = (SDL_VideoDevice *)malloc(sizeof(SDL_VideoDevice)); | |
| 119 if ( device ) { | |
| 120 memset(device, 0, (sizeof *device)); | |
| 121 device->hidden = (struct SDL_PrivateVideoData *) | |
| 122 malloc((sizeof *device->hidden)); | |
| 123 device->gl_data = (struct SDL_PrivateGLData *) | |
| 124 malloc((sizeof *device->gl_data)); | |
| 125 } | |
| 126 if ( (device == NULL) || (device->hidden == NULL) || | |
| 127 (device->gl_data == NULL) ) { | |
| 128 SDL_OutOfMemory(); | |
| 129 DIB_DeleteDevice(device); | |
| 130 return(NULL); | |
| 131 } | |
| 132 memset(device->hidden, 0, (sizeof *device->hidden)); | |
| 133 memset(device->gl_data, 0, (sizeof *device->gl_data)); | |
| 134 | |
| 135 /* Set the function pointers */ | |
| 136 device->VideoInit = DIB_VideoInit; | |
| 137 device->ListModes = DIB_ListModes; | |
| 138 device->SetVideoMode = DIB_SetVideoMode; | |
| 139 device->UpdateMouse = WIN_UpdateMouse; | |
| 140 device->SetColors = DIB_SetColors; | |
| 141 device->UpdateRects = NULL; | |
| 142 device->VideoQuit = DIB_VideoQuit; | |
| 143 device->AllocHWSurface = DIB_AllocHWSurface; | |
| 144 device->CheckHWBlit = NULL; | |
| 145 device->FillHWRect = NULL; | |
| 146 device->SetHWColorKey = NULL; | |
| 147 device->SetHWAlpha = NULL; | |
| 148 device->LockHWSurface = DIB_LockHWSurface; | |
| 149 device->UnlockHWSurface = DIB_UnlockHWSurface; | |
| 150 device->FlipHWSurface = NULL; | |
| 151 device->FreeHWSurface = DIB_FreeHWSurface; | |
| 152 device->SetGammaRamp = DIB_SetGammaRamp; | |
| 153 device->GetGammaRamp = DIB_GetGammaRamp; | |
| 154 #ifdef HAVE_OPENGL | |
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155 device->GL_LoadLibrary = WIN_GL_LoadLibrary; |
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156 device->GL_GetProcAddress = WIN_GL_GetProcAddress; |
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157 device->GL_GetAttribute = WIN_GL_GetAttribute; |
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158 device->GL_MakeCurrent = WIN_GL_MakeCurrent; |
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159 device->GL_SwapBuffers = WIN_GL_SwapBuffers; |
| 0 | 160 #endif |
| 161 device->SetCaption = WIN_SetWMCaption; | |
| 162 device->SetIcon = WIN_SetWMIcon; | |
| 163 device->IconifyWindow = WIN_IconifyWindow; | |
| 164 device->GrabInput = WIN_GrabInput; | |
| 165 device->GetWMInfo = WIN_GetWMInfo; | |
| 166 device->FreeWMCursor = WIN_FreeWMCursor; | |
| 167 device->CreateWMCursor = WIN_CreateWMCursor; | |
| 168 device->ShowWMCursor = WIN_ShowWMCursor; | |
| 169 device->WarpWMCursor = WIN_WarpWMCursor; | |
| 170 device->CheckMouseMode = WIN_CheckMouseMode; | |
| 171 device->InitOSKeymap = DIB_InitOSKeymap; | |
| 172 device->PumpEvents = DIB_PumpEvents; | |
| 173 | |
| 174 /* Set up the windows message handling functions */ | |
| 175 WIN_RealizePalette = DIB_RealizePalette; | |
| 176 WIN_PaletteChanged = DIB_PaletteChanged; | |
| 177 WIN_WinPAINT = DIB_WinPAINT; | |
| 178 HandleMessage = DIB_HandleMessage; | |
| 179 | |
| 180 device->free = DIB_DeleteDevice; | |
| 181 | |
| 182 /* We're finally ready */ | |
| 183 return device; | |
| 184 } | |
| 185 | |
| 186 VideoBootStrap WINDIB_bootstrap = { | |
| 187 "windib", "Win95/98/NT/2000 GDI", | |
| 188 DIB_Available, DIB_CreateDevice | |
| 189 }; | |
| 190 | |
| 191 #ifndef NO_CHANGEDISPLAYSETTINGS | |
| 192 | |
| 193 static int cmpmodes(const void *va, const void *vb) | |
| 194 { | |
| 195 SDL_Rect *a = *(SDL_Rect **)va; | |
| 196 SDL_Rect *b = *(SDL_Rect **)vb; | |
| 197 if(a->w > b->w) | |
| 198 return -1; | |
| 199 return b->h - a->h; | |
| 200 } | |
| 201 | |
| 202 static int DIB_AddMode(_THIS, int bpp, int w, int h) | |
| 203 { | |
| 204 SDL_Rect *mode; | |
| 205 int i, index; | |
| 206 int next_mode; | |
| 207 | |
| 208 /* Check to see if we already have this mode */ | |
| 209 if ( bpp < 8 ) { /* Not supported */ | |
| 210 return(0); | |
| 211 } | |
| 212 index = ((bpp+7)/8)-1; | |
| 213 for ( i=0; i<SDL_nummodes[index]; ++i ) { | |
| 214 mode = SDL_modelist[index][i]; | |
| 215 if ( (mode->w == w) && (mode->h == h) ) { | |
| 216 return(0); | |
| 217 } | |
| 218 } | |
| 219 | |
| 220 /* Set up the new video mode rectangle */ | |
| 221 mode = (SDL_Rect *)malloc(sizeof *mode); | |
| 222 if ( mode == NULL ) { | |
| 223 SDL_OutOfMemory(); | |
| 224 return(-1); | |
| 225 } | |
| 226 mode->x = 0; | |
| 227 mode->y = 0; | |
| 228 mode->w = w; | |
| 229 mode->h = h; | |
| 230 | |
| 231 /* Allocate the new list of modes, and fill in the new mode */ | |
| 232 next_mode = SDL_nummodes[index]; | |
| 233 SDL_modelist[index] = (SDL_Rect **) | |
| 234 realloc(SDL_modelist[index], (1+next_mode+1)*sizeof(SDL_Rect *)); | |
| 235 if ( SDL_modelist[index] == NULL ) { | |
| 236 SDL_OutOfMemory(); | |
| 237 SDL_nummodes[index] = 0; | |
| 238 free(mode); | |
| 239 return(-1); | |
| 240 } | |
| 241 SDL_modelist[index][next_mode] = mode; | |
| 242 SDL_modelist[index][next_mode+1] = NULL; | |
| 243 SDL_nummodes[index]++; | |
| 244 | |
| 245 return(0); | |
| 246 } | |
| 247 | |
| 248 #endif /* !NO_CHANGEDISPLAYSETTINGS */ | |
| 249 | |
| 250 static HPALETTE DIB_CreatePalette(int bpp) | |
| 251 { | |
| 252 /* RJR: March 28, 2000 | |
| 253 moved palette creation here from "DIB_VideoInit" */ | |
| 254 | |
| 255 HPALETTE handle = NULL; | |
| 256 | |
| 257 if ( bpp <= 8 ) | |
| 258 { | |
| 259 LOGPALETTE *palette; | |
| 260 HDC hdc; | |
| 261 int ncolors; | |
| 262 int i; | |
| 263 | |
| 264 ncolors = 1; | |
| 265 for ( i=0; i<bpp; ++i ) { | |
| 266 ncolors *= 2; | |
| 267 } | |
| 268 palette = (LOGPALETTE *)malloc(sizeof(*palette)+ | |
| 269 ncolors*sizeof(PALETTEENTRY)); | |
| 270 palette->palVersion = 0x300; | |
| 271 palette->palNumEntries = ncolors; | |
| 272 hdc = GetDC(SDL_Window); | |
| 273 GetSystemPaletteEntries(hdc, 0, ncolors, palette->palPalEntry); | |
| 274 ReleaseDC(SDL_Window, hdc); | |
| 275 handle = CreatePalette(palette); | |
| 276 free(palette); | |
| 277 } | |
| 278 | |
| 279 return handle; | |
| 280 } | |
| 281 | |
| 282 int DIB_VideoInit(_THIS, SDL_PixelFormat *vformat) | |
| 283 { | |
| 284 #ifndef NO_CHANGEDISPLAYSETTINGS | |
| 285 int i; | |
| 286 DEVMODE settings; | |
| 287 #endif | |
| 288 | |
| 289 /* Create the window */ | |
| 290 if ( DIB_CreateWindow(this) < 0 ) { | |
| 291 return(-1); | |
| 292 } | |
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293 #ifndef DISABLE_AUDIO |
| 0 | 294 DX5_SoundFocus(SDL_Window); |
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295 #endif |
| 0 | 296 |
| 297 /* Determine the screen depth */ | |
| 298 vformat->BitsPerPixel = DIB_SussScreenDepth(); | |
| 299 switch (vformat->BitsPerPixel) { | |
| 300 case 15: | |
| 301 vformat->Rmask = 0x00007c00; | |
| 302 vformat->Gmask = 0x000003e0; | |
| 303 vformat->Bmask = 0x0000001f; | |
| 304 vformat->BitsPerPixel = 16; | |
| 305 break; | |
| 306 case 16: | |
| 307 vformat->Rmask = 0x0000f800; | |
| 308 vformat->Gmask = 0x000007e0; | |
| 309 vformat->Bmask = 0x0000001f; | |
| 310 break; | |
| 311 case 24: | |
| 312 case 32: | |
| 313 /* GDI defined as 8-8-8 */ | |
| 314 vformat->Rmask = 0x00ff0000; | |
| 315 vformat->Gmask = 0x0000ff00; | |
| 316 vformat->Bmask = 0x000000ff; | |
| 317 break; | |
| 318 default: | |
| 319 break; | |
| 320 } | |
| 321 | |
| 322 /* See if gamma is supported on this screen */ | |
| 323 DIB_CheckGamma(this); | |
| 324 | |
| 325 #ifndef NO_CHANGEDISPLAYSETTINGS | |
| 326 /* Query for the list of available video modes */ | |
| 327 for ( i=0; EnumDisplaySettings(NULL, i, &settings); ++i ) { | |
| 328 DIB_AddMode(this, settings.dmBitsPerPel, | |
| 329 settings.dmPelsWidth, settings.dmPelsHeight); | |
| 330 } | |
| 331 /* Sort the mode lists */ | |
| 332 for ( i=0; i<NUM_MODELISTS; ++i ) { | |
| 333 if ( SDL_nummodes[i] > 0 ) { | |
| 334 qsort(SDL_modelist[i], SDL_nummodes[i], sizeof *SDL_modelist[i], cmpmodes); | |
| 335 } | |
| 336 } | |
| 337 #endif /* !NO_CHANGEDISPLAYSETTINGS */ | |
| 338 | |
| 339 /* Grab an identity palette if we are in a palettized mode */ | |
| 340 if ( vformat->BitsPerPixel <= 8 ) { | |
| 341 /* RJR: March 28, 2000 | |
| 342 moved palette creation to "DIB_CreatePalette" */ | |
| 343 screen_pal = DIB_CreatePalette(vformat->BitsPerPixel); | |
| 344 } | |
| 345 | |
| 346 /* Fill in some window manager capabilities */ | |
| 347 this->info.wm_available = 1; | |
| 348 | |
| 349 /* We're done! */ | |
| 350 return(0); | |
| 351 } | |
| 352 | |
| 353 /* We support any format at any dimension */ | |
| 354 SDL_Rect **DIB_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) | |
| 355 { | |
| 356 #ifdef NO_CHANGEDISPLAYSETTINGS | |
| 357 return((SDL_Rect **)-1); | |
| 358 #else | |
| 359 if ( (flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) { | |
| 360 return(SDL_modelist[((format->BitsPerPixel+7)/8)-1]); | |
| 361 } else { | |
| 362 return((SDL_Rect **)-1); | |
| 363 } | |
| 364 #endif | |
| 365 } | |
| 366 | |
| 367 | |
| 368 /* | |
| 369 Helper fn to work out which screen depth windows is currently using. | |
| 370 15 bit mode is considered 555 format, 16 bit is 565. | |
| 371 returns 0 for unknown mode. | |
| 372 (Derived from code in sept 1999 Windows Developer Journal | |
| 373 http://www.wdj.com/code/archive.html) | |
| 374 */ | |
| 375 static int DIB_SussScreenDepth() | |
| 376 { | |
| 377 #ifdef NO_GETDIBITS | |
| 378 int depth; | |
| 379 HDC hdc; | |
| 380 | |
| 381 hdc = GetDC(SDL_Window); | |
| 382 depth = GetDeviceCaps(hdc, PLANES) * GetDeviceCaps(hdc, BITSPIXEL); | |
| 383 ReleaseDC(SDL_Window, hdc); | |
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384 #ifndef _WIN32_WCE |
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385 // AFAIK 16 bit CE devices have indeed RGB 565 |
| 0 | 386 if ( depth == 16 ) { |
| 387 depth = 15; /* GDI defined as RGB 555 */ | |
| 388 } | |
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389 #endif |
| 0 | 390 return(depth); |
| 391 #else | |
| 392 int dib_size; | |
| 393 LPBITMAPINFOHEADER dib_hdr; | |
| 394 HDC hdc; | |
| 395 HBITMAP hbm; | |
| 396 | |
| 397 /* Allocate enough space for a DIB header plus palette (for | |
| 398 * 8-bit modes) or bitfields (for 16- and 32-bit modes) | |
| 399 */ | |
| 400 dib_size = sizeof(BITMAPINFOHEADER) + 256 * sizeof (RGBQUAD); | |
| 401 dib_hdr = (LPBITMAPINFOHEADER) malloc(dib_size); | |
| 402 memset(dib_hdr, 0, dib_size); | |
| 403 dib_hdr->biSize = sizeof(BITMAPINFOHEADER); | |
| 404 | |
| 405 /* Get a device-dependent bitmap that's compatible with the | |
| 406 screen. | |
| 407 */ | |
| 408 hdc = GetDC(NULL); | |
| 409 hbm = CreateCompatibleBitmap( hdc, 1, 1 ); | |
| 410 | |
| 411 /* Convert the DDB to a DIB. We need to call GetDIBits twice: | |
| 412 * the first call just fills in the BITMAPINFOHEADER; the | |
| 413 * second fills in the bitfields or palette. | |
| 414 */ | |
| 415 GetDIBits(hdc, hbm, 0, 1, NULL, (LPBITMAPINFO) dib_hdr, DIB_RGB_COLORS); | |
| 416 GetDIBits(hdc, hbm, 0, 1, NULL, (LPBITMAPINFO) dib_hdr, DIB_RGB_COLORS); | |
| 417 DeleteObject(hbm); | |
| 418 ReleaseDC(NULL, hdc); | |
| 419 | |
| 420 switch( dib_hdr->biBitCount ) | |
| 421 { | |
| 422 case 8: return 8; | |
| 423 case 24: return 24; | |
| 424 case 32: return 32; | |
| 425 case 16: | |
| 426 if( dib_hdr->biCompression == BI_BITFIELDS ) { | |
| 427 /* check the red mask */ | |
| 428 switch( ((DWORD*)((char*)dib_hdr + dib_hdr->biSize))[0] ) { | |
| 429 case 0xf800: return 16; /* 565 */ | |
| 430 case 0x7c00: return 15; /* 555 */ | |
| 431 } | |
| 432 } | |
| 433 } | |
| 434 return 0; /* poo. */ | |
| 435 #endif /* NO_GETDIBITS */ | |
| 436 } | |
| 437 | |
| 438 | |
| 439 /* Various screen update functions available */ | |
| 440 static void DIB_NormalUpdate(_THIS, int numrects, SDL_Rect *rects); | |
| 441 | |
| 442 SDL_Surface *DIB_SetVideoMode(_THIS, SDL_Surface *current, | |
| 443 int width, int height, int bpp, Uint32 flags) | |
| 444 { | |
| 445 SDL_Surface *video; | |
| 446 Uint32 prev_flags; | |
| 447 DWORD style; | |
| 448 const DWORD directstyle = | |
| 449 (WS_POPUP); | |
| 450 const DWORD windowstyle = | |
| 451 (WS_OVERLAPPED|WS_CAPTION|WS_SYSMENU|WS_MINIMIZEBOX); | |
| 452 const DWORD resizestyle = | |
| 453 (WS_THICKFRAME|WS_MAXIMIZEBOX); | |
| 454 int binfo_size; | |
| 455 BITMAPINFO *binfo; | |
| 456 HDC hdc; | |
| 457 RECT bounds; | |
| 458 int x, y; | |
| 459 BOOL was_visible; | |
| 460 Uint32 Rmask, Gmask, Bmask; | |
| 461 | |
| 462 /* See whether or not we should center the window */ | |
| 463 was_visible = IsWindowVisible(SDL_Window); | |
| 464 | |
| 465 /* Clean up any GL context that may be hanging around */ | |
| 466 if ( current->flags & SDL_OPENGL ) { | |
| 467 WIN_GL_ShutDown(this); | |
| 468 } | |
| 469 | |
| 470 /* Recalculate the bitmasks if necessary */ | |
| 471 if ( bpp == current->format->BitsPerPixel ) { | |
| 472 video = current; | |
| 473 } else { | |
| 474 switch (bpp) { | |
| 475 case 15: | |
| 476 case 16: | |
| 477 if ( DIB_SussScreenDepth() == 15 ) { | |
| 478 /* 5-5-5 */ | |
| 479 Rmask = 0x00007c00; | |
| 480 Gmask = 0x000003e0; | |
| 481 Bmask = 0x0000001f; | |
| 482 } else { | |
| 483 /* 5-6-5 */ | |
| 484 Rmask = 0x0000f800; | |
| 485 Gmask = 0x000007e0; | |
| 486 Bmask = 0x0000001f; | |
| 487 } | |
| 488 break; | |
| 489 case 24: | |
| 490 case 32: | |
| 491 /* GDI defined as 8-8-8 */ | |
| 492 Rmask = 0x00ff0000; | |
| 493 Gmask = 0x0000ff00; | |
| 494 Bmask = 0x000000ff; | |
| 495 break; | |
| 496 default: | |
| 497 Rmask = 0x00000000; | |
| 498 Gmask = 0x00000000; | |
| 499 Bmask = 0x00000000; | |
| 500 break; | |
| 501 } | |
| 502 video = SDL_CreateRGBSurface(SDL_SWSURFACE, | |
| 503 0, 0, bpp, Rmask, Gmask, Bmask, 0); | |
| 504 if ( video == NULL ) { | |
| 505 SDL_OutOfMemory(); | |
| 506 return(NULL); | |
| 507 } | |
| 508 } | |
| 509 | |
| 510 /* Fill in part of the video surface */ | |
| 511 prev_flags = video->flags; | |
| 512 video->flags = 0; /* Clear flags */ | |
| 513 video->w = width; | |
| 514 video->h = height; | |
| 515 video->pitch = SDL_CalculatePitch(video); | |
| 516 | |
| 517 #ifndef NO_CHANGEDISPLAYSETTINGS | |
| 518 /* Set fullscreen mode if appropriate */ | |
| 519 if ( (flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) { | |
| 520 DEVMODE settings; | |
| 521 | |
| 522 memset(&settings, 0, sizeof(DEVMODE)); | |
| 523 settings.dmSize = sizeof(DEVMODE); | |
| 524 settings.dmBitsPerPel = video->format->BitsPerPixel; | |
| 525 settings.dmPelsWidth = width; | |
| 526 settings.dmPelsHeight = height; | |
| 527 settings.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL; | |
| 528 if ( ChangeDisplaySettings(&settings, CDS_FULLSCREEN) == DISP_CHANGE_SUCCESSFUL ) { | |
| 529 video->flags |= SDL_FULLSCREEN; | |
|
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530 SDL_fullscreen_mode = settings; |
| 0 | 531 } |
| 532 } | |
| 533 #endif /* !NO_CHANGEDISPLAYSETTINGS */ | |
| 534 | |
|
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535 /* Reset the palette and create a new one if necessary */ |
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536 if ( screen_pal != NULL ) { |
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537 /* RJR: March 28, 2000 |
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538 delete identity palette if switching from a palettized mode */ |
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539 DeleteObject(screen_pal); |
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540 screen_pal = NULL; |
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541 } |
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542 if ( bpp <= 8 ) |
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543 { |
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544 /* RJR: March 28, 2000 |
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545 create identity palette switching to a palettized mode */ |
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546 screen_pal = DIB_CreatePalette(bpp); |
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547 } |
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548 |
| 0 | 549 style = GetWindowLong(SDL_Window, GWL_STYLE); |
| 550 style &= ~(resizestyle|WS_MAXIMIZE); | |
| 551 if ( (video->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) { | |
| 552 style &= ~windowstyle; | |
| 553 style |= directstyle; | |
| 554 } else { | |
| 555 #ifndef NO_CHANGEDISPLAYSETTINGS | |
| 556 if ( (prev_flags & SDL_FULLSCREEN) == SDL_FULLSCREEN ) { | |
| 557 ChangeDisplaySettings(NULL, 0); | |
| 558 } | |
| 559 #endif | |
| 560 if ( flags & SDL_NOFRAME ) { | |
| 561 style &= ~windowstyle; | |
| 562 style |= directstyle; | |
| 563 video->flags |= SDL_NOFRAME; | |
| 564 } else { | |
| 565 style &= ~directstyle; | |
| 566 style |= windowstyle; | |
| 567 if ( flags & SDL_RESIZABLE ) { | |
| 568 style |= resizestyle; | |
| 569 video->flags |= SDL_RESIZABLE; | |
| 570 } | |
| 571 } | |
|
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572 #if WS_MAXIMIZE |
| 0 | 573 if (IsZoomed(SDL_Window)) style |= WS_MAXIMIZE; |
|
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574 #endif |
| 0 | 575 } |
|
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576 |
|
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577 /* DJM: Don't piss of anyone who has setup his own window */ |
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578 if (!SDL_windowid) |
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579 SetWindowLong(SDL_Window, GWL_STYLE, style); |
| 0 | 580 |
| 581 /* Delete the old bitmap if necessary */ | |
| 582 if ( screen_bmp != NULL ) { | |
| 583 DeleteObject(screen_bmp); | |
| 584 } | |
| 585 if ( ! (flags & SDL_OPENGL) ) { | |
| 586 BOOL is16bitmode = (video->format->BytesPerPixel == 2); | |
| 587 | |
| 588 /* Suss out the bitmap info header */ | |
| 589 binfo_size = sizeof(*binfo); | |
| 590 if( is16bitmode ) { | |
| 591 /* 16bit modes, palette area used for rgb bitmasks */ | |
| 592 binfo_size += 3*sizeof(DWORD); | |
| 593 } else if ( video->format->palette ) { | |
| 594 binfo_size += video->format->palette->ncolors * | |
| 595 sizeof(RGBQUAD); | |
| 596 } | |
| 597 binfo = (BITMAPINFO *)malloc(binfo_size); | |
| 598 if ( ! binfo ) { | |
| 599 if ( video != current ) { | |
| 600 SDL_FreeSurface(video); | |
| 601 } | |
| 602 SDL_OutOfMemory(); | |
| 603 return(NULL); | |
| 604 } | |
| 605 | |
| 606 binfo->bmiHeader.biSize = sizeof(BITMAPINFOHEADER); | |
| 607 binfo->bmiHeader.biWidth = video->w; | |
| 608 binfo->bmiHeader.biHeight = -video->h; /* -ve for topdown bitmap */ | |
| 609 binfo->bmiHeader.biPlanes = 1; | |
| 610 binfo->bmiHeader.biSizeImage = video->h * video->pitch; | |
| 611 binfo->bmiHeader.biXPelsPerMeter = 0; | |
| 612 binfo->bmiHeader.biYPelsPerMeter = 0; | |
| 613 binfo->bmiHeader.biClrUsed = 0; | |
| 614 binfo->bmiHeader.biClrImportant = 0; | |
| 615 binfo->bmiHeader.biBitCount = video->format->BitsPerPixel; | |
| 616 | |
| 617 if ( is16bitmode ) { | |
| 618 /* BI_BITFIELDS tells CreateDIBSection about the rgb masks in the palette */ | |
| 619 binfo->bmiHeader.biCompression = BI_BITFIELDS; | |
| 620 ((Uint32*)binfo->bmiColors)[0] = video->format->Rmask; | |
| 621 ((Uint32*)binfo->bmiColors)[1] = video->format->Gmask; | |
| 622 ((Uint32*)binfo->bmiColors)[2] = video->format->Bmask; | |
| 623 } else { | |
| 624 binfo->bmiHeader.biCompression = BI_RGB; /* BI_BITFIELDS for 565 vs 555 */ | |
| 625 if ( video->format->palette ) { | |
| 626 memset(binfo->bmiColors, 0, | |
| 627 video->format->palette->ncolors*sizeof(RGBQUAD)); | |
| 628 } | |
| 629 } | |
| 630 | |
| 631 /* Create the offscreen bitmap buffer */ | |
| 632 hdc = GetDC(SDL_Window); | |
| 633 screen_bmp = CreateDIBSection(hdc, binfo, DIB_RGB_COLORS, | |
| 634 (void **)(&video->pixels), NULL, 0); | |
| 635 ReleaseDC(SDL_Window, hdc); | |
| 636 free(binfo); | |
| 637 if ( screen_bmp == NULL ) { | |
| 638 if ( video != current ) { | |
| 639 SDL_FreeSurface(video); | |
| 640 } | |
| 641 SDL_SetError("Couldn't create DIB section"); | |
| 642 return(NULL); | |
| 643 } | |
| 644 this->UpdateRects = DIB_NormalUpdate; | |
| 645 | |
| 646 /* Set video surface flags */ | |
| 647 if ( bpp <= 8 ) { | |
| 648 /* BitBlt() maps colors for us */ | |
| 649 video->flags |= SDL_HWPALETTE; | |
| 650 } | |
| 651 } | |
| 652 | |
| 653 /* Resize the window */ | |
| 654 if ( SDL_windowid == NULL ) { | |
|
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655 HWND top; |
| 0 | 656 UINT swp_flags; |
| 657 | |
| 658 SDL_resizing = 1; | |
| 659 bounds.left = 0; | |
| 660 bounds.top = 0; | |
| 661 bounds.right = video->w; | |
| 662 bounds.bottom = video->h; | |
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663 AdjustWindowRectEx(&bounds, GetWindowLong(SDL_Window, GWL_STYLE), FALSE, 0); |
| 0 | 664 width = bounds.right-bounds.left; |
| 665 height = bounds.bottom-bounds.top; | |
| 666 x = (GetSystemMetrics(SM_CXSCREEN)-width)/2; | |
| 667 y = (GetSystemMetrics(SM_CYSCREEN)-height)/2; | |
| 668 if ( y < 0 ) { /* Cover up title bar for more client area */ | |
| 669 y -= GetSystemMetrics(SM_CYCAPTION)/2; | |
| 670 } | |
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671 swp_flags = (SWP_NOCOPYBITS | SWP_FRAMECHANGED | SWP_SHOWWINDOW); |
| 0 | 672 if ( was_visible && !(flags & SDL_FULLSCREEN) ) { |
| 673 swp_flags |= SWP_NOMOVE; | |
| 674 } | |
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675 if ( flags & SDL_FULLSCREEN ) { |
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676 top = HWND_TOPMOST; |
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677 } else { |
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678 top = HWND_NOTOPMOST; |
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679 } |
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680 SetWindowPos(SDL_Window, top, x, y, width, height, swp_flags); |
| 0 | 681 SDL_resizing = 0; |
| 682 SetForegroundWindow(SDL_Window); | |
| 683 } | |
| 684 | |
| 685 /* Set up for OpenGL */ | |
| 686 if ( flags & SDL_OPENGL ) { | |
| 687 if ( WIN_GL_SetupWindow(this) < 0 ) { | |
| 688 return(NULL); | |
| 689 } | |
| 690 video->flags |= SDL_OPENGL; | |
| 691 } | |
|
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692 |
| 0 | 693 /* We're live! */ |
| 694 return(video); | |
| 695 } | |
| 696 | |
| 697 /* We don't actually allow hardware surfaces in the DIB driver */ | |
| 698 static int DIB_AllocHWSurface(_THIS, SDL_Surface *surface) | |
| 699 { | |
| 700 return(-1); | |
| 701 } | |
| 702 static void DIB_FreeHWSurface(_THIS, SDL_Surface *surface) | |
| 703 { | |
| 704 return; | |
| 705 } | |
| 706 static int DIB_LockHWSurface(_THIS, SDL_Surface *surface) | |
| 707 { | |
| 708 return(0); | |
| 709 } | |
| 710 static void DIB_UnlockHWSurface(_THIS, SDL_Surface *surface) | |
| 711 { | |
| 712 return; | |
| 713 } | |
| 714 | |
| 715 static void DIB_NormalUpdate(_THIS, int numrects, SDL_Rect *rects) | |
| 716 { | |
| 717 HDC hdc, mdc; | |
| 718 int i; | |
| 719 | |
| 720 hdc = GetDC(SDL_Window); | |
| 721 if ( screen_pal ) { | |
| 722 SelectPalette(hdc, screen_pal, FALSE); | |
| 723 } | |
| 724 mdc = CreateCompatibleDC(hdc); | |
| 725 SelectObject(mdc, screen_bmp); | |
| 726 for ( i=0; i<numrects; ++i ) { | |
| 727 BitBlt(hdc, rects[i].x, rects[i].y, rects[i].w, rects[i].h, | |
| 728 mdc, rects[i].x, rects[i].y, SRCCOPY); | |
| 729 } | |
| 730 DeleteDC(mdc); | |
| 731 ReleaseDC(SDL_Window, hdc); | |
| 732 } | |
| 733 | |
| 734 int DIB_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) | |
| 735 { | |
| 736 RGBQUAD *pal; | |
| 737 int i; | |
|
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738 #ifndef _WIN32_WCE |
| 0 | 739 HDC hdc, mdc; |
|
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740 #else |
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741 HDC hdc; |
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742 #endif |
| 0 | 743 |
| 744 /* Update the display palette */ | |
| 745 hdc = GetDC(SDL_Window); | |
| 746 if ( screen_pal ) { | |
| 747 PALETTEENTRY *entries; | |
| 748 | |
| 749 entries = (PALETTEENTRY *)alloca(ncolors*sizeof(PALETTEENTRY)); | |
| 750 for ( i=0; i<ncolors; ++i ) { | |
| 751 entries[i].peRed = colors[i].r; | |
| 752 entries[i].peGreen = colors[i].g; | |
| 753 entries[i].peBlue = colors[i].b; | |
| 754 entries[i].peFlags = PC_NOCOLLAPSE; | |
| 755 } | |
| 756 SetPaletteEntries(screen_pal, firstcolor, ncolors, entries); | |
| 757 SelectPalette(hdc, screen_pal, FALSE); | |
| 758 RealizePalette(hdc); | |
| 759 } | |
| 760 | |
| 761 /* Copy palette colors into DIB palette */ | |
| 762 pal = (RGBQUAD *)alloca(ncolors*sizeof(RGBQUAD)); | |
| 763 for ( i=0; i<ncolors; ++i ) { | |
| 764 pal[i].rgbRed = colors[i].r; | |
| 765 pal[i].rgbGreen = colors[i].g; | |
| 766 pal[i].rgbBlue = colors[i].b; | |
| 767 pal[i].rgbReserved = 0; | |
| 768 } | |
| 769 | |
| 770 /* Set the DIB palette and update the display */ | |
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771 #ifndef _WIN32_WCE |
| 0 | 772 mdc = CreateCompatibleDC(hdc); |
| 773 SelectObject(mdc, screen_bmp); | |
| 774 SetDIBColorTable(mdc, firstcolor, ncolors, pal); | |
| 775 BitBlt(hdc, 0, 0, this->screen->w, this->screen->h, | |
| 776 mdc, 0, 0, SRCCOPY); | |
| 777 DeleteDC(mdc); | |
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778 #endif |
| 0 | 779 ReleaseDC(SDL_Window, hdc); |
| 780 return(1); | |
| 781 } | |
| 782 | |
| 783 static void DIB_CheckGamma(_THIS) | |
| 784 { | |
| 785 #ifndef NO_GAMMA_SUPPORT | |
| 786 HDC hdc; | |
| 787 WORD ramp[3*256]; | |
| 788 | |
| 789 /* If we fail to get gamma, disable gamma control */ | |
| 790 hdc = GetDC(SDL_Window); | |
| 791 if ( ! GetDeviceGammaRamp(hdc, ramp) ) { | |
| 792 this->GetGammaRamp = NULL; | |
| 793 this->SetGammaRamp = NULL; | |
| 794 } | |
| 795 ReleaseDC(SDL_Window, hdc); | |
| 796 #endif /* !NO_GAMMA_SUPPORT */ | |
| 797 } | |
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798 void DIB_SwapGamma(_THIS) |
| 0 | 799 { |
| 800 #ifndef NO_GAMMA_SUPPORT | |
| 801 HDC hdc; | |
| 802 | |
| 803 if ( gamma_saved ) { | |
| 804 hdc = GetDC(SDL_Window); | |
| 805 if ( SDL_GetAppState() & SDL_APPINPUTFOCUS ) { | |
| 806 /* About to leave active state, restore gamma */ | |
| 807 SetDeviceGammaRamp(hdc, gamma_saved); | |
| 808 } else { | |
| 809 /* About to enter active state, set game gamma */ | |
| 810 GetDeviceGammaRamp(hdc, gamma_saved); | |
| 811 SetDeviceGammaRamp(hdc, this->gamma); | |
| 812 } | |
| 813 ReleaseDC(SDL_Window, hdc); | |
| 814 } | |
| 815 #endif /* !NO_GAMMA_SUPPORT */ | |
| 816 } | |
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817 void DIB_QuitGamma(_THIS) |
| 0 | 818 { |
| 819 #ifndef NO_GAMMA_SUPPORT | |
| 820 if ( gamma_saved ) { | |
| 821 /* Restore the original gamma if necessary */ | |
| 822 if ( SDL_GetAppState() & SDL_APPINPUTFOCUS ) { | |
| 823 HDC hdc; | |
| 824 | |
| 825 hdc = GetDC(SDL_Window); | |
| 826 SetDeviceGammaRamp(hdc, gamma_saved); | |
| 827 ReleaseDC(SDL_Window, hdc); | |
| 828 } | |
| 829 | |
| 830 /* Free the saved gamma memory */ | |
| 831 free(gamma_saved); | |
| 832 gamma_saved = 0; | |
| 833 } | |
| 834 #endif /* !NO_GAMMA_SUPPORT */ | |
| 835 } | |
| 836 | |
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837 int DIB_SetGammaRamp(_THIS, Uint16 *ramp) |
| 0 | 838 { |
|
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839 #ifdef NO_GAMMA_SUPPORT |
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840 SDL_SetError("SDL compiled without gamma ramp support"); |
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841 return -1; |
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842 #else |
| 0 | 843 HDC hdc; |
| 844 BOOL succeeded; | |
| 845 | |
| 846 /* Set the ramp for the display */ | |
| 847 if ( ! gamma_saved ) { | |
| 848 gamma_saved = (WORD *)malloc(3*256*sizeof(*gamma_saved)); | |
| 849 if ( ! gamma_saved ) { | |
| 850 SDL_OutOfMemory(); | |
| 851 return -1; | |
| 852 } | |
| 853 hdc = GetDC(SDL_Window); | |
| 854 GetDeviceGammaRamp(hdc, gamma_saved); | |
| 855 ReleaseDC(SDL_Window, hdc); | |
| 856 } | |
| 857 if ( SDL_GetAppState() & SDL_APPINPUTFOCUS ) { | |
| 858 hdc = GetDC(SDL_Window); | |
| 859 succeeded = SetDeviceGammaRamp(hdc, ramp); | |
| 860 ReleaseDC(SDL_Window, hdc); | |
| 861 } else { | |
| 862 succeeded = TRUE; | |
| 863 } | |
| 864 return succeeded ? 0 : -1; | |
|
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865 #endif /* !NO_GAMMA_SUPPORT */ |
| 0 | 866 } |
| 867 | |
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868 int DIB_GetGammaRamp(_THIS, Uint16 *ramp) |
| 0 | 869 { |
|
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870 #ifdef NO_GAMMA_SUPPORT |
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871 SDL_SetError("SDL compiled without gamma ramp support"); |
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872 return -1; |
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873 #else |
| 0 | 874 HDC hdc; |
| 875 BOOL succeeded; | |
| 876 | |
| 877 /* Get the ramp from the display */ | |
| 878 hdc = GetDC(SDL_Window); | |
| 879 succeeded = GetDeviceGammaRamp(hdc, ramp); | |
| 880 ReleaseDC(SDL_Window, hdc); | |
| 881 return succeeded ? 0 : -1; | |
|
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882 #endif /* !NO_GAMMA_SUPPORT */ |
| 0 | 883 } |
| 884 | |
|
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885 static void FlushMessageQueue() |
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886 { |
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887 MSG msg; |
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888 while ( PeekMessage(&msg, NULL, 0, 0, PM_REMOVE) ) { |
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889 if ( msg.message == WM_QUIT ) break; |
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890 TranslateMessage( &msg ); |
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891 DispatchMessage( &msg ); |
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892 } |
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893 } |
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894 |
| 0 | 895 void DIB_VideoQuit(_THIS) |
| 896 { | |
| 897 /* Destroy the window and everything associated with it */ | |
| 898 if ( SDL_Window ) { | |
| 899 /* Delete the screen bitmap (also frees screen->pixels) */ | |
| 900 if ( this->screen ) { | |
| 901 #ifndef NO_CHANGEDISPLAYSETTINGS | |
| 902 if ( this->screen->flags & SDL_FULLSCREEN ) { | |
| 903 ChangeDisplaySettings(NULL, 0); | |
|
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904 ShowWindow(SDL_Window, SW_HIDE); |
| 0 | 905 } |
| 906 #endif | |
| 907 if ( this->screen->flags & SDL_OPENGL ) { | |
| 908 WIN_GL_ShutDown(this); | |
| 909 } | |
| 910 this->screen->pixels = NULL; | |
| 911 } | |
| 912 if ( screen_bmp ) { | |
| 913 DeleteObject(screen_bmp); | |
| 914 screen_bmp = NULL; | |
| 915 } | |
| 916 if ( screen_icn ) { | |
| 917 DestroyIcon(screen_icn); | |
| 918 screen_icn = NULL; | |
| 919 } | |
| 920 DIB_QuitGamma(this); | |
| 921 DIB_DestroyWindow(this); | |
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922 FlushMessageQueue(); |
| 0 | 923 |
| 924 SDL_Window = NULL; | |
| 925 } | |
| 926 } | |
| 927 | |
| 928 /* Exported for the windows message loop only */ | |
| 929 static void DIB_FocusPalette(_THIS, int foreground) | |
| 930 { | |
| 931 if ( screen_pal != NULL ) { | |
| 932 HDC hdc; | |
| 933 | |
| 934 hdc = GetDC(SDL_Window); | |
| 935 SelectPalette(hdc, screen_pal, FALSE); | |
| 936 if ( RealizePalette(hdc) ) | |
| 937 InvalidateRect(SDL_Window, NULL, FALSE); | |
| 938 ReleaseDC(SDL_Window, hdc); | |
| 939 } | |
| 940 } | |
| 941 static void DIB_RealizePalette(_THIS) | |
| 942 { | |
| 943 DIB_FocusPalette(this, 1); | |
| 944 } | |
| 945 static void DIB_PaletteChanged(_THIS, HWND window) | |
| 946 { | |
| 947 if ( window != SDL_Window ) { | |
| 948 DIB_FocusPalette(this, 0); | |
| 949 } | |
| 950 } | |
| 951 | |
| 952 /* Exported for the windows message loop only */ | |
| 953 static void DIB_WinPAINT(_THIS, HDC hdc) | |
| 954 { | |
| 955 HDC mdc; | |
| 956 | |
| 957 if ( screen_pal ) { | |
| 958 SelectPalette(hdc, screen_pal, FALSE); | |
| 959 } | |
| 960 mdc = CreateCompatibleDC(hdc); | |
| 961 SelectObject(mdc, screen_bmp); | |
| 962 BitBlt(hdc, 0, 0, SDL_VideoSurface->w, SDL_VideoSurface->h, | |
| 963 mdc, 0, 0, SRCCOPY); | |
| 964 DeleteDC(mdc); | |
| 965 } | |
| 966 | |
| 967 /* Stub in case DirectX isn't available */ | |
| 968 #ifndef ENABLE_DIRECTX | |
| 969 void DX5_SoundFocus(HWND hwnd) | |
| 970 { | |
| 971 return; | |
| 972 } | |
| 973 #endif |