| 1 | /* |
| 2 | *Copyright (C) 1994-2000 The XFree86 Project, Inc. All Rights Reserved. |
| 3 | * |
| 4 | *Permission is hereby granted, free of charge, to any person obtaining |
| 5 | * a copy of this software and associated documentation files (the |
| 6 | *"Software"), to deal in the Software without restriction, including |
| 7 | *without limitation the rights to use, copy, modify, merge, publish, |
| 8 | *distribute, sublicense, and/or sell copies of the Software, and to |
| 9 | *permit persons to whom the Software is furnished to do so, subject to |
| 10 | *the following conditions: |
| 11 | * |
| 12 | *The above copyright notice and this permission notice shall be |
| 13 | *included in all copies or substantial portions of the Software. |
| 14 | * |
| 15 | *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 16 | *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 17 | *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 18 | *NONINFRINGEMENT. IN NO EVENT SHALL THE XFREE86 PROJECT BE LIABLE FOR |
| 19 | *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF |
| 20 | *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
| 21 | *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 22 | * |
| 23 | *Except as contained in this notice, the name of the XFree86 Project |
| 24 | *shall not be used in advertising or otherwise to promote the sale, use |
| 25 | *or other dealings in this Software without prior written authorization |
| 26 | *from the XFree86 Project. |
| 27 | * |
| 28 | * Authors: Dakshinamurthy Karra |
| 29 | * Suhaib M Siddiqi |
| 30 | * Peter Busch |
| 31 | * Harold L Hunt II |
| 32 | */ |
| 33 | |
| 34 | #ifdef HAVE_XWIN_CONFIG_H |
| 35 | #include <xwin-config.h> |
| 36 | #endif |
| 37 | #include "win.h" |
| 38 | |
| 39 | /* |
| 40 | * Local prototypes |
| 41 | */ |
| 42 | |
| 43 | static int |
| 44 | winListInstalledColormaps(ScreenPtr pScreen, Colormap * pmaps); |
| 45 | |
| 46 | static void |
| 47 | winStoreColors(ColormapPtr pmap, int ndef, xColorItem * pdefs); |
| 48 | |
| 49 | static void |
| 50 | winInstallColormap(ColormapPtr pmap); |
| 51 | |
| 52 | static void |
| 53 | winUninstallColormap(ColormapPtr pmap); |
| 54 | |
| 55 | static void |
| 56 | |
| 57 | winResolveColor(unsigned short *pred, |
| 58 | unsigned short *pgreen, |
| 59 | unsigned short *pblue, VisualPtr pVisual); |
| 60 | |
| 61 | static Bool |
| 62 | winCreateColormap(ColormapPtr pmap); |
| 63 | |
| 64 | static void |
| 65 | winDestroyColormap(ColormapPtr pmap); |
| 66 | |
| 67 | static Bool |
| 68 | winGetPaletteDIB(ScreenPtr pScreen, ColormapPtr pcmap); |
| 69 | |
| 70 | static Bool |
| 71 | winGetPaletteDD(ScreenPtr pScreen, ColormapPtr pcmap); |
| 72 | |
| 73 | /* |
| 74 | * Set screen functions for colormaps |
| 75 | */ |
| 76 | |
| 77 | void |
| 78 | winSetColormapFunctions(ScreenPtr pScreen) |
| 79 | { |
| 80 | pScreen->CreateColormap = winCreateColormap; |
| 81 | pScreen->DestroyColormap = winDestroyColormap; |
| 82 | pScreen->InstallColormap = winInstallColormap; |
| 83 | pScreen->UninstallColormap = winUninstallColormap; |
| 84 | pScreen->ListInstalledColormaps = winListInstalledColormaps; |
| 85 | pScreen->StoreColors = winStoreColors; |
| 86 | pScreen->ResolveColor = winResolveColor; |
| 87 | } |
| 88 | |
| 89 | /* See Porting Layer Definition - p. 30 */ |
| 90 | /* |
| 91 | * Walk the list of installed colormaps, filling the pmaps list |
| 92 | * with the resource ids of the installed maps, and return |
| 93 | * a count of the total number of installed maps. |
| 94 | */ |
| 95 | static int |
| 96 | winListInstalledColormaps(ScreenPtr pScreen, Colormap * pmaps) |
| 97 | { |
| 98 | winScreenPriv(pScreen); |
| 99 | |
| 100 | /* |
| 101 | * There will only be one installed colormap, so we only need |
| 102 | * to return one id, and the count of installed maps will always |
| 103 | * be one. |
| 104 | */ |
| 105 | *pmaps = pScreenPriv->pcmapInstalled->mid; |
| 106 | return 1; |
| 107 | } |
| 108 | |
| 109 | /* See Porting Layer Definition - p. 30 */ |
| 110 | /* See Programming Windows - p. 663 */ |
| 111 | static void |
| 112 | winInstallColormap(ColormapPtr pColormap) |
| 113 | { |
| 114 | ScreenPtr pScreen = pColormap->pScreen; |
| 115 | |
| 116 | winScreenPriv(pScreen); |
| 117 | ColormapPtr oldpmap = pScreenPriv->pcmapInstalled; |
| 118 | |
| 119 | #if CYGDEBUG |
| 120 | winDebug("winInstallColormap\n"); |
| 121 | #endif |
| 122 | |
| 123 | /* Did the colormap actually change? */ |
| 124 | if (pColormap != oldpmap) { |
| 125 | #if CYGDEBUG |
| 126 | winDebug("winInstallColormap - Colormap has changed, attempt " |
| 127 | "to install.\n"); |
| 128 | #endif |
| 129 | |
| 130 | /* Was there a previous colormap? */ |
| 131 | if (oldpmap != (ColormapPtr) None) { |
| 132 | /* There was a previous colormap; tell clients it is gone */ |
| 133 | WalkTree(pColormap->pScreen, TellLostMap, (char *) &oldpmap->mid); |
| 134 | } |
| 135 | |
| 136 | /* Install new colormap */ |
| 137 | pScreenPriv->pcmapInstalled = pColormap; |
| 138 | WalkTree(pColormap->pScreen, TellGainedMap, (char *) &pColormap->mid); |
| 139 | |
| 140 | /* Call the engine specific colormap install procedure */ |
| 141 | if (!((*pScreenPriv->pwinInstallColormap) (pColormap))) { |
| 142 | winErrorFVerb(2, |
| 143 | "winInstallColormap - Screen specific colormap install " |
| 144 | "procedure failed. Continuing, but colors may be " |
| 145 | "messed up from now on.\n"); |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | /* Save a pointer to the newly installed colormap */ |
| 150 | pScreenPriv->pcmapInstalled = pColormap; |
| 151 | } |
| 152 | |
| 153 | /* See Porting Layer Definition - p. 30 */ |
| 154 | static void |
| 155 | winUninstallColormap(ColormapPtr pmap) |
| 156 | { |
| 157 | winScreenPriv(pmap->pScreen); |
| 158 | ColormapPtr curpmap = pScreenPriv->pcmapInstalled; |
| 159 | |
| 160 | #if CYGDEBUG |
| 161 | winDebug("winUninstallColormap\n"); |
| 162 | #endif |
| 163 | |
| 164 | /* Is the colormap currently installed? */ |
| 165 | if (pmap != curpmap) { |
| 166 | /* Colormap not installed, nothing to do */ |
| 167 | return; |
| 168 | } |
| 169 | |
| 170 | /* Clear the installed colormap flag */ |
| 171 | pScreenPriv->pcmapInstalled = NULL; |
| 172 | |
| 173 | /* |
| 174 | * NOTE: The default colormap does not get "uninstalled" before |
| 175 | * it is destroyed. |
| 176 | */ |
| 177 | |
| 178 | /* Install the default cmap in place of the cmap to be uninstalled */ |
| 179 | if (pmap->mid != pmap->pScreen->defColormap) { |
| 180 | dixLookupResourceByType((pointer) &curpmap, pmap->pScreen->defColormap, |
| 181 | RT_COLORMAP, NullClient, DixUnknownAccess); |
| 182 | (*pmap->pScreen->InstallColormap) (curpmap); |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | /* See Porting Layer Definition - p. 30 */ |
| 187 | static void |
| 188 | winStoreColors(ColormapPtr pmap, int ndef, xColorItem * pdefs) |
| 189 | { |
| 190 | ScreenPtr pScreen = pmap->pScreen; |
| 191 | |
| 192 | winScreenPriv(pScreen); |
| 193 | winCmapPriv(pmap); |
| 194 | int i; |
| 195 | unsigned short nRed, nGreen, nBlue; |
| 196 | |
| 197 | #if CYGDEBUG |
| 198 | if (ndef != 1) |
| 199 | winDebug("winStoreColors - ndef: %d\n", ndef); |
| 200 | #endif |
| 201 | |
| 202 | /* Save the new colors in the colormap privates */ |
| 203 | for (i = 0; i < ndef; ++i) { |
| 204 | /* Adjust the colors from the X color spec to the Windows color spec */ |
| 205 | nRed = pdefs[i].red >> 8; |
| 206 | nGreen = pdefs[i].green >> 8; |
| 207 | nBlue = pdefs[i].blue >> 8; |
| 208 | |
| 209 | /* Copy the colors to a palette entry table */ |
| 210 | pCmapPriv->peColors[pdefs[0].pixel + i].peRed = nRed; |
| 211 | pCmapPriv->peColors[pdefs[0].pixel + i].peGreen = nGreen; |
| 212 | pCmapPriv->peColors[pdefs[0].pixel + i].peBlue = nBlue; |
| 213 | |
| 214 | /* Copy the colors to a RGBQUAD table */ |
| 215 | pCmapPriv->rgbColors[pdefs[0].pixel + i].rgbRed = nRed; |
| 216 | pCmapPriv->rgbColors[pdefs[0].pixel + i].rgbGreen = nGreen; |
| 217 | pCmapPriv->rgbColors[pdefs[0].pixel + i].rgbBlue = nBlue; |
| 218 | |
| 219 | #if CYGDEBUG |
| 220 | winDebug("winStoreColors - nRed %d nGreen %d nBlue %d\n", |
| 221 | nRed, nGreen, nBlue); |
| 222 | #endif |
| 223 | } |
| 224 | |
| 225 | /* Call the engine specific store colors procedure */ |
| 226 | if (!((pScreenPriv->pwinStoreColors) (pmap, ndef, pdefs))) { |
| 227 | winErrorFVerb(2, |
| 228 | "winStoreColors - Engine cpecific color storage procedure " |
| 229 | "failed. Continuing, but colors may be messed up from now " |
| 230 | "on.\n"); |
| 231 | } |
| 232 | } |
| 233 | |
| 234 | /* See Porting Layer Definition - p. 30 */ |
| 235 | static void |
| 236 | winResolveColor(unsigned short *pred, |
| 237 | unsigned short *pgreen, |
| 238 | unsigned short *pblue, VisualPtr pVisual) |
| 239 | { |
| 240 | #if CYGDEBUG |
| 241 | winDebug("winResolveColor ()\n"); |
| 242 | #endif |
| 243 | |
| 244 | miResolveColor(pred, pgreen, pblue, pVisual); |
| 245 | } |
| 246 | |
| 247 | /* See Porting Layer Definition - p. 29 */ |
| 248 | static Bool |
| 249 | winCreateColormap(ColormapPtr pmap) |
| 250 | { |
| 251 | winPrivCmapPtr pCmapPriv = NULL; |
| 252 | ScreenPtr pScreen = pmap->pScreen; |
| 253 | |
| 254 | winScreenPriv(pScreen); |
| 255 | |
| 256 | #if CYGDEBUG |
| 257 | winDebug("winCreateColormap\n"); |
| 258 | #endif |
| 259 | |
| 260 | /* Allocate colormap privates */ |
| 261 | if (!winAllocateCmapPrivates(pmap)) { |
| 262 | ErrorF("winCreateColorma - Couldn't allocate cmap privates\n"); |
| 263 | return FALSE; |
| 264 | } |
| 265 | |
| 266 | /* Get a pointer to the newly allocated privates */ |
| 267 | pCmapPriv = winGetCmapPriv(pmap); |
| 268 | |
| 269 | /* |
| 270 | * FIXME: This is some evil hackery to help in handling some X clients |
| 271 | * that expect the top pixel to be white. This "help" only lasts until |
| 272 | * some client overwrites the top colormap entry. |
| 273 | * |
| 274 | * We don't want to actually allocate the top entry, as that causes |
| 275 | * problems with X clients that need 7 planes (128 colors) in the default |
| 276 | * colormap, such as Magic 7.1. |
| 277 | */ |
| 278 | pCmapPriv->rgbColors[WIN_NUM_PALETTE_ENTRIES - 1].rgbRed = 255; |
| 279 | pCmapPriv->rgbColors[WIN_NUM_PALETTE_ENTRIES - 1].rgbGreen = 255; |
| 280 | pCmapPriv->rgbColors[WIN_NUM_PALETTE_ENTRIES - 1].rgbBlue = 255; |
| 281 | pCmapPriv->peColors[WIN_NUM_PALETTE_ENTRIES - 1].peRed = 255; |
| 282 | pCmapPriv->peColors[WIN_NUM_PALETTE_ENTRIES - 1].peGreen = 255; |
| 283 | pCmapPriv->peColors[WIN_NUM_PALETTE_ENTRIES - 1].peBlue = 255; |
| 284 | |
| 285 | /* Call the engine specific colormap initialization procedure */ |
| 286 | if (!((*pScreenPriv->pwinCreateColormap) (pmap))) { |
| 287 | ErrorF("winCreateColormap - Engine specific colormap creation " |
| 288 | "procedure failed. Aborting.\n"); |
| 289 | return FALSE; |
| 290 | } |
| 291 | |
| 292 | return TRUE; |
| 293 | } |
| 294 | |
| 295 | /* See Porting Layer Definition - p. 29, 30 */ |
| 296 | static void |
| 297 | winDestroyColormap(ColormapPtr pColormap) |
| 298 | { |
| 299 | winScreenPriv(pColormap->pScreen); |
| 300 | winCmapPriv(pColormap); |
| 301 | |
| 302 | /* Call the engine specific colormap destruction procedure */ |
| 303 | if (!((*pScreenPriv->pwinDestroyColormap) (pColormap))) { |
| 304 | winErrorFVerb(2, |
| 305 | "winDestroyColormap - Engine specific colormap destruction " |
| 306 | "procedure failed. Continuing, but it is possible that memory " |
| 307 | "was leaked, or that colors will be messed up from now on.\n"); |
| 308 | } |
| 309 | |
| 310 | /* Free the colormap privates */ |
| 311 | free(pCmapPriv); |
| 312 | winSetCmapPriv(pColormap, NULL); |
| 313 | |
| 314 | #if CYGDEBUG |
| 315 | winDebug("winDestroyColormap - Returning\n"); |
| 316 | #endif |
| 317 | } |
| 318 | |
| 319 | /* |
| 320 | * Internal function to load the palette used by the Shadow DIB |
| 321 | */ |
| 322 | |
| 323 | static Bool |
| 324 | winGetPaletteDIB(ScreenPtr pScreen, ColormapPtr pcmap) |
| 325 | { |
| 326 | winScreenPriv(pScreen); |
| 327 | int i; |
| 328 | Pixel pixel; /* Pixel == CARD32 */ |
| 329 | CARD16 nRed, nGreen, nBlue; /* CARD16 == unsigned short */ |
| 330 | UINT uiColorsRetrieved = 0; |
| 331 | RGBQUAD rgbColors[WIN_NUM_PALETTE_ENTRIES]; |
| 332 | |
| 333 | /* Get the color table for the screen */ |
| 334 | uiColorsRetrieved = GetDIBColorTable(pScreenPriv->hdcScreen, |
| 335 | 0, WIN_NUM_PALETTE_ENTRIES, rgbColors); |
| 336 | if (uiColorsRetrieved == 0) { |
| 337 | ErrorF("winGetPaletteDIB - Could not retrieve screen color table\n"); |
| 338 | return FALSE; |
| 339 | } |
| 340 | |
| 341 | #if CYGDEBUG |
| 342 | winDebug("winGetPaletteDIB - Retrieved %d colors from DIB\n", |
| 343 | uiColorsRetrieved); |
| 344 | #endif |
| 345 | |
| 346 | /* Set the DIB color table to the default screen palette */ |
| 347 | if (SetDIBColorTable(pScreenPriv->hdcShadow, |
| 348 | 0, uiColorsRetrieved, rgbColors) == 0) { |
| 349 | ErrorF("winGetPaletteDIB - SetDIBColorTable () failed\n"); |
| 350 | return FALSE; |
| 351 | } |
| 352 | |
| 353 | /* Alloc each color in the DIB color table */ |
| 354 | for (i = 0; i < uiColorsRetrieved; ++i) { |
| 355 | pixel = i; |
| 356 | |
| 357 | /* Extract the color values for current palette entry */ |
| 358 | nRed = rgbColors[i].rgbRed << 8; |
| 359 | nGreen = rgbColors[i].rgbGreen << 8; |
| 360 | nBlue = rgbColors[i].rgbBlue << 8; |
| 361 | |
| 362 | #if CYGDEBUG |
| 363 | winDebug("winGetPaletteDIB - Allocating a color: %d; " |
| 364 | "%d %d %d\n", pixel, nRed, nGreen, nBlue); |
| 365 | #endif |
| 366 | |
| 367 | /* Allocate a entry in the X colormap */ |
| 368 | if (AllocColor(pcmap, &nRed, &nGreen, &nBlue, &pixel, 0) != Success) { |
| 369 | ErrorF("winGetPaletteDIB - AllocColor () failed, pixel %d\n", i); |
| 370 | return FALSE; |
| 371 | } |
| 372 | |
| 373 | if (i != pixel |
| 374 | || nRed != rgbColors[i].rgbRed |
| 375 | || nGreen != rgbColors[i].rgbGreen |
| 376 | || nBlue != rgbColors[i].rgbBlue) { |
| 377 | winDebug("winGetPaletteDIB - Got: %d; " |
| 378 | "%d %d %d\n", (int) pixel, nRed, nGreen, nBlue); |
| 379 | } |
| 380 | |
| 381 | /* FIXME: Not sure that this bit is needed at all */ |
| 382 | pcmap->red[i].co.local.red = nRed; |
| 383 | pcmap->red[i].co.local.green = nGreen; |
| 384 | pcmap->red[i].co.local.blue = nBlue; |
| 385 | } |
| 386 | |
| 387 | /* System is using a colormap */ |
| 388 | /* Set the black and white pixel indices */ |
| 389 | pScreen->whitePixel = uiColorsRetrieved - 1; |
| 390 | pScreen->blackPixel = 0; |
| 391 | |
| 392 | return TRUE; |
| 393 | } |
| 394 | |
| 395 | /* |
| 396 | * Internal function to load the standard system palette being used by DD |
| 397 | */ |
| 398 | |
| 399 | static Bool |
| 400 | winGetPaletteDD(ScreenPtr pScreen, ColormapPtr pcmap) |
| 401 | { |
| 402 | int i; |
| 403 | Pixel pixel; /* Pixel == CARD32 */ |
| 404 | CARD16 nRed, nGreen, nBlue; /* CARD16 == unsigned short */ |
| 405 | UINT uiSystemPaletteEntries; |
| 406 | LPPALETTEENTRY ppeColors = NULL; |
| 407 | HDC hdc = NULL; |
| 408 | |
| 409 | /* Get a DC to obtain the default palette */ |
| 410 | hdc = GetDC(NULL); |
| 411 | if (hdc == NULL) { |
| 412 | ErrorF("winGetPaletteDD - Couldn't get a DC\n"); |
| 413 | return FALSE; |
| 414 | } |
| 415 | |
| 416 | /* Get the number of entries in the system palette */ |
| 417 | uiSystemPaletteEntries = GetSystemPaletteEntries(hdc, 0, 0, NULL); |
| 418 | if (uiSystemPaletteEntries == 0) { |
| 419 | ErrorF("winGetPaletteDD - Unable to determine number of " |
| 420 | "system palette entries\n"); |
| 421 | return FALSE; |
| 422 | } |
| 423 | |
| 424 | #if CYGDEBUG |
| 425 | winDebug("winGetPaletteDD - uiSystemPaletteEntries %d\n", |
| 426 | uiSystemPaletteEntries); |
| 427 | #endif |
| 428 | |
| 429 | /* Allocate palette entries structure */ |
| 430 | ppeColors = malloc(uiSystemPaletteEntries * sizeof(PALETTEENTRY)); |
| 431 | if (ppeColors == NULL) { |
| 432 | ErrorF("winGetPaletteDD - malloc () for colormap failed\n"); |
| 433 | return FALSE; |
| 434 | } |
| 435 | |
| 436 | /* Get system palette entries */ |
| 437 | GetSystemPaletteEntries(hdc, 0, uiSystemPaletteEntries, ppeColors); |
| 438 | |
| 439 | /* Allocate an X colormap entry for every system palette entry */ |
| 440 | for (i = 0; i < uiSystemPaletteEntries; ++i) { |
| 441 | pixel = i; |
| 442 | |
| 443 | /* Extract the color values for current palette entry */ |
| 444 | nRed = ppeColors[i].peRed << 8; |
| 445 | nGreen = ppeColors[i].peGreen << 8; |
| 446 | nBlue = ppeColors[i].peBlue << 8; |
| 447 | #if CYGDEBUG |
| 448 | winDebug("winGetPaletteDD - Allocating a color: %d; " |
| 449 | "%d %d %d\n", pixel, nRed, nGreen, nBlue); |
| 450 | #endif |
| 451 | if (AllocColor(pcmap, &nRed, &nGreen, &nBlue, &pixel, 0) != Success) { |
| 452 | ErrorF("winGetPaletteDD - AllocColor () failed, pixel %d\n", i); |
| 453 | free(ppeColors); |
| 454 | ppeColors = NULL; |
| 455 | return FALSE; |
| 456 | } |
| 457 | |
| 458 | pcmap->red[i].co.local.red = nRed; |
| 459 | pcmap->red[i].co.local.green = nGreen; |
| 460 | pcmap->red[i].co.local.blue = nBlue; |
| 461 | } |
| 462 | |
| 463 | /* System is using a colormap */ |
| 464 | /* Set the black and white pixel indices */ |
| 465 | pScreen->whitePixel = uiSystemPaletteEntries - 1; |
| 466 | pScreen->blackPixel = 0; |
| 467 | |
| 468 | /* Free colormap */ |
| 469 | free(ppeColors); |
| 470 | ppeColors = NULL; |
| 471 | |
| 472 | /* Free the DC */ |
| 473 | if (hdc != NULL) { |
| 474 | ReleaseDC(NULL, hdc); |
| 475 | hdc = NULL; |
| 476 | } |
| 477 | |
| 478 | return TRUE; |
| 479 | } |
| 480 | |
| 481 | /* |
| 482 | * Install the standard fb colormap, or the GDI colormap, |
| 483 | * depending on the current screen depth. |
| 484 | */ |
| 485 | |
| 486 | Bool |
| 487 | winCreateDefColormap(ScreenPtr pScreen) |
| 488 | { |
| 489 | winScreenPriv(pScreen); |
| 490 | winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; |
| 491 | unsigned short zero = 0, ones = 0xFFFF; |
| 492 | VisualPtr pVisual = pScreenPriv->pRootVisual; |
| 493 | ColormapPtr pcmap = NULL; |
| 494 | Pixel wp, bp; |
| 495 | |
| 496 | #if CYGDEBUG |
| 497 | winDebug("winCreateDefColormap\n"); |
| 498 | #endif |
| 499 | |
| 500 | /* Use standard fb colormaps for non palettized color modes */ |
| 501 | if (pScreenInfo->dwBPP > 8) { |
| 502 | winDebug("winCreateDefColormap - Deferring to " |
| 503 | "fbCreateDefColormap ()\n"); |
| 504 | return fbCreateDefColormap(pScreen); |
| 505 | } |
| 506 | |
| 507 | /* |
| 508 | * AllocAll for non-Dynamic visual classes, |
| 509 | * AllocNone for Dynamic visual classes. |
| 510 | */ |
| 511 | |
| 512 | /* |
| 513 | * Dynamic visual classes allow the colors of the color map |
| 514 | * to be changed by clients. |
| 515 | */ |
| 516 | |
| 517 | #if CYGDEBUG |
| 518 | winDebug("winCreateDefColormap - defColormap: %d\n", pScreen->defColormap); |
| 519 | #endif |
| 520 | |
| 521 | /* Allocate an X colormap, owned by client 0 */ |
| 522 | if (CreateColormap(pScreen->defColormap, |
| 523 | pScreen, |
| 524 | pVisual, |
| 525 | &pcmap, |
| 526 | (pVisual->class & DynamicClass) ? AllocNone : AllocAll, |
| 527 | 0) != Success) { |
| 528 | ErrorF("winCreateDefColormap - CreateColormap failed\n"); |
| 529 | return FALSE; |
| 530 | } |
| 531 | if (pcmap == NULL) { |
| 532 | ErrorF("winCreateDefColormap - Colormap could not be created\n"); |
| 533 | return FALSE; |
| 534 | } |
| 535 | |
| 536 | #if CYGDEBUG |
| 537 | winDebug("winCreateDefColormap - Created a colormap\n"); |
| 538 | #endif |
| 539 | |
| 540 | /* Branch on the visual class */ |
| 541 | if (!(pVisual->class & DynamicClass)) { |
| 542 | /* Branch on engine type */ |
| 543 | if (pScreenInfo->dwEngine == WIN_SERVER_SHADOW_GDI) { |
| 544 | /* Load the colors being used by the Shadow DIB */ |
| 545 | if (!winGetPaletteDIB(pScreen, pcmap)) { |
| 546 | ErrorF("winCreateDefColormap - Couldn't get DIB colors\n"); |
| 547 | return FALSE; |
| 548 | } |
| 549 | } |
| 550 | else { |
| 551 | /* Load the colors from the default system palette */ |
| 552 | if (!winGetPaletteDD(pScreen, pcmap)) { |
| 553 | ErrorF("winCreateDefColormap - Couldn't get colors " |
| 554 | "for DD\n"); |
| 555 | return FALSE; |
| 556 | } |
| 557 | } |
| 558 | } |
| 559 | else { |
| 560 | wp = pScreen->whitePixel; |
| 561 | bp = pScreen->blackPixel; |
| 562 | |
| 563 | /* Allocate a black and white pixel */ |
| 564 | if ((AllocColor(pcmap, &ones, &ones, &ones, &wp, 0) != Success) |
| 565 | || (AllocColor(pcmap, &zero, &zero, &zero, &bp, 0) != Success)) { |
| 566 | ErrorF("winCreateDefColormap - Couldn't allocate bp or wp\n"); |
| 567 | return FALSE; |
| 568 | } |
| 569 | |
| 570 | pScreen->whitePixel = wp; |
| 571 | pScreen->blackPixel = bp; |
| 572 | |
| 573 | #if 0 |
| 574 | /* Have to reserve first 10 and last ten pixels in DirectDraw windowed */ |
| 575 | if (pScreenInfo->dwEngine != WIN_SERVER_SHADOW_GDI) { |
| 576 | int k; |
| 577 | Pixel p; |
| 578 | |
| 579 | for (k = 1; k < 10; ++k) { |
| 580 | p = k; |
| 581 | if (AllocColor(pcmap, &ones, &ones, &ones, &p, 0) != Success) |
| 582 | FatalError("Foo!\n"); |
| 583 | } |
| 584 | |
| 585 | for (k = 245; k < 255; ++k) { |
| 586 | p = k; |
| 587 | if (AllocColor(pcmap, &zero, &zero, &zero, &p, 0) != Success) |
| 588 | FatalError("Baz!\n"); |
| 589 | } |
| 590 | } |
| 591 | #endif |
| 592 | } |
| 593 | |
| 594 | /* Install the created colormap */ |
| 595 | (*pScreen->InstallColormap) (pcmap); |
| 596 | |
| 597 | #if CYGDEBUG |
| 598 | winDebug("winCreateDefColormap - Returning\n"); |
| 599 | #endif |
| 600 | |
| 601 | return TRUE; |
| 602 | } |