| 1 | /* |
| 2 | *Copyright (C) 2001-2004 Harold L Hunt II 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 HAROLD L HUNT II 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 Harold L Hunt II |
| 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 Harold L Hunt II. |
| 27 | * |
| 28 | * Authors: Harold L Hunt II |
| 29 | */ |
| 30 | |
| 31 | #ifdef HAVE_XWIN_CONFIG_H |
| 32 | #include <xwin-config.h> |
| 33 | #endif |
| 34 | #include "win.h" |
| 35 | |
| 36 | /* |
| 37 | * Local function prototypes |
| 38 | */ |
| 39 | |
| 40 | #ifdef XWIN_MULTIWINDOW |
| 41 | static wBOOL CALLBACK winRedrawAllProcShadowGDI(HWND hwnd, LPARAM lParam); |
| 42 | |
| 43 | static wBOOL CALLBACK winRedrawDamagedWindowShadowGDI(HWND hwnd, LPARAM lParam); |
| 44 | #endif |
| 45 | |
| 46 | static Bool |
| 47 | winAllocateFBShadowGDI(ScreenPtr pScreen); |
| 48 | |
| 49 | static void |
| 50 | winShadowUpdateGDI(ScreenPtr pScreen, shadowBufPtr pBuf); |
| 51 | |
| 52 | static Bool |
| 53 | winCloseScreenShadowGDI(ScreenPtr pScreen); |
| 54 | |
| 55 | static Bool |
| 56 | winInitVisualsShadowGDI(ScreenPtr pScreen); |
| 57 | |
| 58 | static Bool |
| 59 | winAdjustVideoModeShadowGDI(ScreenPtr pScreen); |
| 60 | |
| 61 | static Bool |
| 62 | winBltExposedRegionsShadowGDI(ScreenPtr pScreen); |
| 63 | |
| 64 | static Bool |
| 65 | winActivateAppShadowGDI(ScreenPtr pScreen); |
| 66 | |
| 67 | static Bool |
| 68 | winRedrawScreenShadowGDI(ScreenPtr pScreen); |
| 69 | |
| 70 | static Bool |
| 71 | winRealizeInstalledPaletteShadowGDI(ScreenPtr pScreen); |
| 72 | |
| 73 | static Bool |
| 74 | winInstallColormapShadowGDI(ColormapPtr pColormap); |
| 75 | |
| 76 | static Bool |
| 77 | winStoreColorsShadowGDI(ColormapPtr pmap, int ndef, xColorItem * pdefs); |
| 78 | |
| 79 | static Bool |
| 80 | winCreateColormapShadowGDI(ColormapPtr pColormap); |
| 81 | |
| 82 | static Bool |
| 83 | winDestroyColormapShadowGDI(ColormapPtr pColormap); |
| 84 | |
| 85 | /* |
| 86 | * Internal function to get the DIB format that is compatible with the screen |
| 87 | */ |
| 88 | |
| 89 | static |
| 90 | Bool |
| 91 | winQueryScreenDIBFormat(ScreenPtr pScreen, BITMAPINFOHEADER * pbmih) |
| 92 | { |
| 93 | winScreenPriv(pScreen); |
| 94 | HBITMAP hbmp; |
| 95 | |
| 96 | #if CYGDEBUG |
| 97 | LPDWORD pdw = NULL; |
| 98 | #endif |
| 99 | |
| 100 | /* Create a memory bitmap compatible with the screen */ |
| 101 | hbmp = CreateCompatibleBitmap(pScreenPriv->hdcScreen, 1, 1); |
| 102 | if (hbmp == NULL) { |
| 103 | ErrorF("winQueryScreenDIBFormat - CreateCompatibleBitmap failed\n"); |
| 104 | return FALSE; |
| 105 | } |
| 106 | |
| 107 | /* Initialize our bitmap info header */ |
| 108 | ZeroMemory(pbmih, sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD)); |
| 109 | pbmih->biSize = sizeof(BITMAPINFOHEADER); |
| 110 | |
| 111 | /* Get the biBitCount */ |
| 112 | if (!GetDIBits(pScreenPriv->hdcScreen, |
| 113 | hbmp, 0, 1, NULL, (BITMAPINFO *) pbmih, DIB_RGB_COLORS)) { |
| 114 | ErrorF("winQueryScreenDIBFormat - First call to GetDIBits failed\n"); |
| 115 | DeleteObject(hbmp); |
| 116 | return FALSE; |
| 117 | } |
| 118 | |
| 119 | #if CYGDEBUG |
| 120 | /* Get a pointer to bitfields */ |
| 121 | pdw = (DWORD *) ((CARD8 *) pbmih + sizeof(BITMAPINFOHEADER)); |
| 122 | |
| 123 | winDebug("winQueryScreenDIBFormat - First call masks: %08x %08x %08x\n", |
| 124 | pdw[0], pdw[1], pdw[2]); |
| 125 | #endif |
| 126 | |
| 127 | /* Get optimal color table, or the optimal bitfields */ |
| 128 | if (!GetDIBits(pScreenPriv->hdcScreen, |
| 129 | hbmp, 0, 1, NULL, (BITMAPINFO *) pbmih, DIB_RGB_COLORS)) { |
| 130 | ErrorF("winQueryScreenDIBFormat - Second call to GetDIBits " |
| 131 | "failed\n"); |
| 132 | DeleteObject(hbmp); |
| 133 | return FALSE; |
| 134 | } |
| 135 | |
| 136 | /* Free memory */ |
| 137 | DeleteObject(hbmp); |
| 138 | |
| 139 | return TRUE; |
| 140 | } |
| 141 | |
| 142 | /* |
| 143 | * Internal function to determine the GDI bits per rgb and bit masks |
| 144 | */ |
| 145 | |
| 146 | static |
| 147 | Bool |
| 148 | winQueryRGBBitsAndMasks(ScreenPtr pScreen) |
| 149 | { |
| 150 | winScreenPriv(pScreen); |
| 151 | BITMAPINFOHEADER *pbmih = NULL; |
| 152 | Bool fReturn = TRUE; |
| 153 | LPDWORD pdw = NULL; |
| 154 | DWORD dwRedBits, dwGreenBits, dwBlueBits; |
| 155 | |
| 156 | /* Color masks for 8 bpp are standardized */ |
| 157 | if (GetDeviceCaps(pScreenPriv->hdcScreen, RASTERCAPS) & RC_PALETTE) { |
| 158 | /* |
| 159 | * RGB BPP for 8 bit palletes is always 8 |
| 160 | * and the color masks are always 0. |
| 161 | */ |
| 162 | pScreenPriv->dwBitsPerRGB = 8; |
| 163 | pScreenPriv->dwRedMask = 0x0L; |
| 164 | pScreenPriv->dwGreenMask = 0x0L; |
| 165 | pScreenPriv->dwBlueMask = 0x0L; |
| 166 | return TRUE; |
| 167 | } |
| 168 | |
| 169 | /* Color masks for 24 bpp are standardized */ |
| 170 | if (GetDeviceCaps(pScreenPriv->hdcScreen, PLANES) |
| 171 | * GetDeviceCaps(pScreenPriv->hdcScreen, BITSPIXEL) == 24) { |
| 172 | ErrorF("winQueryRGBBitsAndMasks - GetDeviceCaps (BITSPIXEL) " |
| 173 | "returned 24 for the screen. Using default 24bpp masks.\n"); |
| 174 | |
| 175 | /* 8 bits per primary color */ |
| 176 | pScreenPriv->dwBitsPerRGB = 8; |
| 177 | |
| 178 | /* Set screen privates masks */ |
| 179 | pScreenPriv->dwRedMask = WIN_24BPP_MASK_RED; |
| 180 | pScreenPriv->dwGreenMask = WIN_24BPP_MASK_GREEN; |
| 181 | pScreenPriv->dwBlueMask = WIN_24BPP_MASK_BLUE; |
| 182 | |
| 183 | return TRUE; |
| 184 | } |
| 185 | |
| 186 | /* Allocate a bitmap header and color table */ |
| 187 | pbmih = (BITMAPINFOHEADER *) malloc(sizeof(BITMAPINFOHEADER) |
| 188 | + 256 * sizeof(RGBQUAD)); |
| 189 | if (pbmih == NULL) { |
| 190 | ErrorF("winQueryRGBBitsAndMasks - malloc failed\n"); |
| 191 | return FALSE; |
| 192 | } |
| 193 | |
| 194 | /* Get screen description */ |
| 195 | if (winQueryScreenDIBFormat(pScreen, pbmih)) { |
| 196 | /* Get a pointer to bitfields */ |
| 197 | pdw = (DWORD *) ((CARD8 *) pbmih + sizeof(BITMAPINFOHEADER)); |
| 198 | |
| 199 | #if CYGDEBUG |
| 200 | winDebug("%s - Masks: %08x %08x %08x\n", __FUNCTION__, |
| 201 | pdw[0], pdw[1], pdw[2]); |
| 202 | winDebug("%s - Bitmap: %dx%d %d bpp %d planes\n", __FUNCTION__, |
| 203 | pbmih->biWidth, pbmih->biHeight, pbmih->biBitCount, |
| 204 | pbmih->biPlanes); |
| 205 | winDebug("%s - Compression: %d %s\n", __FUNCTION__, |
| 206 | pbmih->biCompression, |
| 207 | (pbmih->biCompression == |
| 208 | BI_RGB ? "(BI_RGB)" : (pbmih->biCompression == |
| 209 | BI_RLE8 ? "(BI_RLE8)" : (pbmih-> |
| 210 | biCompression |
| 211 | == |
| 212 | BI_RLE4 ? |
| 213 | "(BI_RLE4)" |
| 214 | : (pbmih-> |
| 215 | biCompression |
| 216 | == |
| 217 | BI_BITFIELDS |
| 218 | ? |
| 219 | "(BI_BITFIELDS)" |
| 220 | : ""))))); |
| 221 | #endif |
| 222 | |
| 223 | /* Handle BI_RGB case, which is returned by Wine */ |
| 224 | if (pbmih->biCompression == BI_RGB) { |
| 225 | dwRedBits = 5; |
| 226 | dwGreenBits = 5; |
| 227 | dwBlueBits = 5; |
| 228 | |
| 229 | pScreenPriv->dwBitsPerRGB = 5; |
| 230 | |
| 231 | /* Set screen privates masks */ |
| 232 | pScreenPriv->dwRedMask = 0x7c00; |
| 233 | pScreenPriv->dwGreenMask = 0x03e0; |
| 234 | pScreenPriv->dwBlueMask = 0x001f; |
| 235 | } |
| 236 | else { |
| 237 | /* Count the number of bits in each mask */ |
| 238 | dwRedBits = winCountBits(pdw[0]); |
| 239 | dwGreenBits = winCountBits(pdw[1]); |
| 240 | dwBlueBits = winCountBits(pdw[2]); |
| 241 | |
| 242 | /* Find maximum bits per red, green, blue */ |
| 243 | if (dwRedBits > dwGreenBits && dwRedBits > dwBlueBits) |
| 244 | pScreenPriv->dwBitsPerRGB = dwRedBits; |
| 245 | else if (dwGreenBits > dwRedBits && dwGreenBits > dwBlueBits) |
| 246 | pScreenPriv->dwBitsPerRGB = dwGreenBits; |
| 247 | else |
| 248 | pScreenPriv->dwBitsPerRGB = dwBlueBits; |
| 249 | |
| 250 | /* Set screen privates masks */ |
| 251 | pScreenPriv->dwRedMask = pdw[0]; |
| 252 | pScreenPriv->dwGreenMask = pdw[1]; |
| 253 | pScreenPriv->dwBlueMask = pdw[2]; |
| 254 | } |
| 255 | } |
| 256 | else { |
| 257 | ErrorF("winQueryRGBBitsAndMasks - winQueryScreenDIBFormat failed\n"); |
| 258 | fReturn = FALSE; |
| 259 | } |
| 260 | |
| 261 | /* Free memory */ |
| 262 | free(pbmih); |
| 263 | |
| 264 | return fReturn; |
| 265 | } |
| 266 | |
| 267 | #ifdef XWIN_MULTIWINDOW |
| 268 | /* |
| 269 | * Redraw all ---? |
| 270 | */ |
| 271 | |
| 272 | static wBOOL CALLBACK |
| 273 | winRedrawAllProcShadowGDI(HWND hwnd, LPARAM lParam) |
| 274 | { |
| 275 | if (hwnd == (HWND) lParam) |
| 276 | return TRUE; |
| 277 | InvalidateRect(hwnd, NULL, FALSE); |
| 278 | UpdateWindow(hwnd); |
| 279 | return TRUE; |
| 280 | } |
| 281 | |
| 282 | static wBOOL CALLBACK |
| 283 | winRedrawDamagedWindowShadowGDI(HWND hwnd, LPARAM lParam) |
| 284 | { |
| 285 | BoxPtr pDamage = (BoxPtr) lParam; |
| 286 | RECT rcClient, rcDamage, rcRedraw; |
| 287 | POINT topLeft, bottomRight; |
| 288 | |
| 289 | if (IsIconic(hwnd)) |
| 290 | return TRUE; /* Don't care minimized windows */ |
| 291 | |
| 292 | /* Convert the damaged area from Screen coords to Client coords */ |
| 293 | topLeft.x = pDamage->x1; |
| 294 | topLeft.y = pDamage->y1; |
| 295 | bottomRight.x = pDamage->x2; |
| 296 | bottomRight.y = pDamage->y2; |
| 297 | topLeft.x += GetSystemMetrics(SM_XVIRTUALSCREEN); |
| 298 | bottomRight.x += GetSystemMetrics(SM_XVIRTUALSCREEN); |
| 299 | topLeft.y += GetSystemMetrics(SM_YVIRTUALSCREEN); |
| 300 | bottomRight.y += GetSystemMetrics(SM_YVIRTUALSCREEN); |
| 301 | ScreenToClient(hwnd, &topLeft); |
| 302 | ScreenToClient(hwnd, &bottomRight); |
| 303 | SetRect(&rcDamage, topLeft.x, topLeft.y, bottomRight.x, bottomRight.y); |
| 304 | |
| 305 | GetClientRect(hwnd, &rcClient); |
| 306 | |
| 307 | if (IntersectRect(&rcRedraw, &rcClient, &rcDamage)) { |
| 308 | InvalidateRect(hwnd, &rcRedraw, FALSE); |
| 309 | UpdateWindow(hwnd); |
| 310 | } |
| 311 | return TRUE; |
| 312 | } |
| 313 | #endif |
| 314 | |
| 315 | /* |
| 316 | * Allocate a DIB for the shadow framebuffer GDI server |
| 317 | */ |
| 318 | |
| 319 | static Bool |
| 320 | winAllocateFBShadowGDI(ScreenPtr pScreen) |
| 321 | { |
| 322 | winScreenPriv(pScreen); |
| 323 | winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; |
| 324 | DIBSECTION dibsection; |
| 325 | Bool fReturn = TRUE; |
| 326 | |
| 327 | /* Describe shadow bitmap to be created */ |
| 328 | pScreenPriv->pbmih->biWidth = pScreenInfo->dwWidth; |
| 329 | pScreenPriv->pbmih->biHeight = -pScreenInfo->dwHeight; |
| 330 | |
| 331 | ErrorF("winAllocateFBShadowGDI - Creating DIB with width: %d height: %d " |
| 332 | "depth: %d\n", |
| 333 | (int) pScreenPriv->pbmih->biWidth, |
| 334 | (int) -pScreenPriv->pbmih->biHeight, pScreenPriv->pbmih->biBitCount); |
| 335 | |
| 336 | /* Create a DI shadow bitmap with a bit pointer */ |
| 337 | pScreenPriv->hbmpShadow = CreateDIBSection(pScreenPriv->hdcScreen, |
| 338 | (BITMAPINFO *) pScreenPriv-> |
| 339 | pbmih, DIB_RGB_COLORS, |
| 340 | (VOID **) &pScreenInfo->pfb, |
| 341 | NULL, 0); |
| 342 | if (pScreenPriv->hbmpShadow == NULL || pScreenInfo->pfb == NULL) { |
| 343 | winW32Error(2, "winAllocateFBShadowGDI - CreateDIBSection failed:"); |
| 344 | return FALSE; |
| 345 | } |
| 346 | else { |
| 347 | #if CYGDEBUG |
| 348 | winDebug("winAllocateFBShadowGDI - Shadow buffer allocated\n"); |
| 349 | #endif |
| 350 | } |
| 351 | |
| 352 | /* Get information about the bitmap that was allocated */ |
| 353 | GetObject(pScreenPriv->hbmpShadow, sizeof(dibsection), &dibsection); |
| 354 | |
| 355 | #if CYGDEBUG || YES |
| 356 | /* Print information about bitmap allocated */ |
| 357 | winDebug("winAllocateFBShadowGDI - Dibsection width: %d height: %d " |
| 358 | "depth: %d size image: %d\n", |
| 359 | (int) dibsection.dsBmih.biWidth, (int) dibsection.dsBmih.biHeight, |
| 360 | dibsection.dsBmih.biBitCount, (int) dibsection.dsBmih.biSizeImage); |
| 361 | #endif |
| 362 | |
| 363 | /* Select the shadow bitmap into the shadow DC */ |
| 364 | SelectObject(pScreenPriv->hdcShadow, pScreenPriv->hbmpShadow); |
| 365 | |
| 366 | #if CYGDEBUG |
| 367 | winDebug("winAllocateFBShadowGDI - Attempting a shadow blit\n"); |
| 368 | #endif |
| 369 | |
| 370 | /* Do a test blit from the shadow to the screen, I think */ |
| 371 | fReturn = BitBlt(pScreenPriv->hdcScreen, |
| 372 | 0, 0, |
| 373 | pScreenInfo->dwWidth, pScreenInfo->dwHeight, |
| 374 | pScreenPriv->hdcShadow, 0, 0, SRCCOPY); |
| 375 | if (fReturn) { |
| 376 | #if CYGDEBUG |
| 377 | winDebug("winAllocateFBShadowGDI - Shadow blit success\n"); |
| 378 | #endif |
| 379 | } |
| 380 | else { |
| 381 | winW32Error(2, "winAllocateFBShadowGDI - Shadow blit failure\n"); |
| 382 | #if 0 |
| 383 | return FALSE; |
| 384 | #else |
| 385 | /* ago: ignore this error. The blit fails with wine, but does not |
| 386 | * cause any problems later. */ |
| 387 | |
| 388 | fReturn = TRUE; |
| 389 | #endif |
| 390 | } |
| 391 | |
| 392 | /* Look for height weirdness */ |
| 393 | if (dibsection.dsBmih.biHeight < 0) { |
| 394 | dibsection.dsBmih.biHeight = -dibsection.dsBmih.biHeight; |
| 395 | } |
| 396 | |
| 397 | /* Set screeninfo stride */ |
| 398 | pScreenInfo->dwStride = ((dibsection.dsBmih.biSizeImage |
| 399 | / dibsection.dsBmih.biHeight) |
| 400 | * 8) / pScreenInfo->dwBPP; |
| 401 | |
| 402 | #if CYGDEBUG || YES |
| 403 | winDebug("winAllocateFBShadowGDI - Created shadow stride: %d\n", |
| 404 | (int) pScreenInfo->dwStride); |
| 405 | #endif |
| 406 | |
| 407 | #ifdef XWIN_MULTIWINDOW |
| 408 | /* Redraw all windows */ |
| 409 | if (pScreenInfo->fMultiWindow) |
| 410 | EnumThreadWindows(g_dwCurrentThreadID, winRedrawAllProcShadowGDI, 0); |
| 411 | #endif |
| 412 | |
| 413 | return fReturn; |
| 414 | } |
| 415 | |
| 416 | static void |
| 417 | winFreeFBShadowGDI(ScreenPtr pScreen) |
| 418 | { |
| 419 | winScreenPriv(pScreen); |
| 420 | winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; |
| 421 | |
| 422 | /* Free the shadow bitmap */ |
| 423 | DeleteObject(pScreenPriv->hbmpShadow); |
| 424 | |
| 425 | /* Invalidate the ScreenInfo's fb pointer */ |
| 426 | pScreenInfo->pfb = NULL; |
| 427 | } |
| 428 | |
| 429 | /* |
| 430 | * Blit the damaged regions of the shadow fb to the screen |
| 431 | */ |
| 432 | |
| 433 | static void |
| 434 | winShadowUpdateGDI(ScreenPtr pScreen, shadowBufPtr pBuf) |
| 435 | { |
| 436 | winScreenPriv(pScreen); |
| 437 | winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; |
| 438 | RegionPtr damage = shadowDamage(pBuf); |
| 439 | DWORD dwBox = RegionNumRects(damage); |
| 440 | BoxPtr pBox = RegionRects(damage); |
| 441 | int x, y, w, h; |
| 442 | HRGN hrgnCombined = NULL; |
| 443 | |
| 444 | #ifdef XWIN_UPDATESTATS |
| 445 | static DWORD s_dwNonUnitRegions = 0; |
| 446 | static DWORD s_dwTotalUpdates = 0; |
| 447 | static DWORD s_dwTotalBoxes = 0; |
| 448 | #endif |
| 449 | BoxPtr pBoxExtents = RegionExtents(damage); |
| 450 | |
| 451 | /* |
| 452 | * Return immediately if the app is not active |
| 453 | * and we are fullscreen, or if we have a bad display depth |
| 454 | */ |
| 455 | if ((!pScreenPriv->fActive && pScreenInfo->fFullScreen) |
| 456 | || pScreenPriv->fBadDepth) |
| 457 | return; |
| 458 | |
| 459 | #ifdef XWIN_UPDATESTATS |
| 460 | ++s_dwTotalUpdates; |
| 461 | s_dwTotalBoxes += dwBox; |
| 462 | |
| 463 | if (dwBox != 1) { |
| 464 | ++s_dwNonUnitRegions; |
| 465 | ErrorF("winShadowUpdatGDI - dwBox: %d\n", dwBox); |
| 466 | } |
| 467 | |
| 468 | if ((s_dwTotalUpdates % 100) == 0) |
| 469 | ErrorF("winShadowUpdateGDI - %d%% non-unity regions, avg boxes: %d " |
| 470 | "nu: %d tu: %d\n", |
| 471 | (s_dwNonUnitRegions * 100) / s_dwTotalUpdates, |
| 472 | s_dwTotalBoxes / s_dwTotalUpdates, |
| 473 | s_dwNonUnitRegions, s_dwTotalUpdates); |
| 474 | #endif /* XWIN_UPDATESTATS */ |
| 475 | |
| 476 | /* |
| 477 | * Handle small regions with multiple blits, |
| 478 | * handle large regions by creating a clipping region and |
| 479 | * doing a single blit constrained to that clipping region. |
| 480 | */ |
| 481 | if (!pScreenInfo->fMultiWindow && |
| 482 | (pScreenInfo->dwClipUpdatesNBoxes == 0 || |
| 483 | dwBox < pScreenInfo->dwClipUpdatesNBoxes)) { |
| 484 | /* Loop through all boxes in the damaged region */ |
| 485 | while (dwBox--) { |
| 486 | /* |
| 487 | * Calculate x offset, y offset, width, and height for |
| 488 | * current damage box |
| 489 | */ |
| 490 | x = pBox->x1; |
| 491 | y = pBox->y1; |
| 492 | w = pBox->x2 - pBox->x1; |
| 493 | h = pBox->y2 - pBox->y1; |
| 494 | |
| 495 | BitBlt(pScreenPriv->hdcScreen, |
| 496 | x, y, w, h, pScreenPriv->hdcShadow, x, y, SRCCOPY); |
| 497 | |
| 498 | /* Get a pointer to the next box */ |
| 499 | ++pBox; |
| 500 | } |
| 501 | } |
| 502 | else if (!pScreenInfo->fMultiWindow) { |
| 503 | |
| 504 | /* Compute a GDI region from the damaged region */ |
| 505 | hrgnCombined = |
| 506 | CreateRectRgn(pBoxExtents->x1, pBoxExtents->y1, pBoxExtents->x2, |
| 507 | pBoxExtents->y2); |
| 508 | |
| 509 | /* Install the GDI region as a clipping region */ |
| 510 | SelectClipRgn(pScreenPriv->hdcScreen, hrgnCombined); |
| 511 | DeleteObject(hrgnCombined); |
| 512 | hrgnCombined = NULL; |
| 513 | |
| 514 | /* |
| 515 | * Blit the shadow buffer to the screen, |
| 516 | * constrained to the clipping region. |
| 517 | */ |
| 518 | BitBlt(pScreenPriv->hdcScreen, |
| 519 | pBoxExtents->x1, pBoxExtents->y1, |
| 520 | pBoxExtents->x2 - pBoxExtents->x1, |
| 521 | pBoxExtents->y2 - pBoxExtents->y1, |
| 522 | pScreenPriv->hdcShadow, |
| 523 | pBoxExtents->x1, pBoxExtents->y1, SRCCOPY); |
| 524 | |
| 525 | /* Reset the clip region */ |
| 526 | SelectClipRgn(pScreenPriv->hdcScreen, NULL); |
| 527 | } |
| 528 | |
| 529 | #ifdef XWIN_MULTIWINDOW |
| 530 | /* Redraw all multiwindow windows */ |
| 531 | if (pScreenInfo->fMultiWindow) |
| 532 | EnumThreadWindows(g_dwCurrentThreadID, |
| 533 | winRedrawDamagedWindowShadowGDI, |
| 534 | (LPARAM) pBoxExtents); |
| 535 | #endif |
| 536 | } |
| 537 | |
| 538 | static Bool |
| 539 | winInitScreenShadowGDI(ScreenPtr pScreen) |
| 540 | { |
| 541 | winScreenPriv(pScreen); |
| 542 | |
| 543 | /* Get device contexts for the screen and shadow bitmap */ |
| 544 | pScreenPriv->hdcScreen = GetDC(pScreenPriv->hwndScreen); |
| 545 | pScreenPriv->hdcShadow = CreateCompatibleDC(pScreenPriv->hdcScreen); |
| 546 | |
| 547 | /* Allocate bitmap info header */ |
| 548 | pScreenPriv->pbmih = (BITMAPINFOHEADER *) malloc(sizeof(BITMAPINFOHEADER) |
| 549 | + 256 * sizeof(RGBQUAD)); |
| 550 | if (pScreenPriv->pbmih == NULL) { |
| 551 | ErrorF("winInitScreenShadowGDI - malloc () failed\n"); |
| 552 | return FALSE; |
| 553 | } |
| 554 | |
| 555 | /* Query the screen format */ |
| 556 | if (!winQueryScreenDIBFormat(pScreen, pScreenPriv->pbmih)) { |
| 557 | ErrorF("winInitScreenShadowGDI - winQueryScreenDIBFormat failed\n"); |
| 558 | return FALSE; |
| 559 | } |
| 560 | |
| 561 | /* Determine our color masks */ |
| 562 | if (!winQueryRGBBitsAndMasks(pScreen)) { |
| 563 | ErrorF("winInitScreenShadowGDI - winQueryRGBBitsAndMasks failed\n"); |
| 564 | return FALSE; |
| 565 | } |
| 566 | |
| 567 | return winAllocateFBShadowGDI(pScreen); |
| 568 | } |
| 569 | |
| 570 | /* See Porting Layer Definition - p. 33 */ |
| 571 | /* |
| 572 | * We wrap whatever CloseScreen procedure was specified by fb; |
| 573 | * a pointer to said procedure is stored in our privates. |
| 574 | */ |
| 575 | |
| 576 | static Bool |
| 577 | winCloseScreenShadowGDI(ScreenPtr pScreen) |
| 578 | { |
| 579 | winScreenPriv(pScreen); |
| 580 | winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; |
| 581 | Bool fReturn; |
| 582 | |
| 583 | #if CYGDEBUG |
| 584 | winDebug("winCloseScreenShadowGDI - Freeing screen resources\n"); |
| 585 | #endif |
| 586 | |
| 587 | /* Flag that the screen is closed */ |
| 588 | pScreenPriv->fClosed = TRUE; |
| 589 | pScreenPriv->fActive = FALSE; |
| 590 | |
| 591 | /* Call the wrapped CloseScreen procedure */ |
| 592 | WIN_UNWRAP(CloseScreen); |
| 593 | if (pScreen->CloseScreen) |
| 594 | fReturn = (*pScreen->CloseScreen) (pScreen); |
| 595 | |
| 596 | /* Delete the window property */ |
| 597 | RemoveProp(pScreenPriv->hwndScreen, WIN_SCR_PROP); |
| 598 | |
| 599 | /* Free the shadow DC; which allows the bitmap to be freed */ |
| 600 | DeleteDC(pScreenPriv->hdcShadow); |
| 601 | |
| 602 | winFreeFBShadowGDI(pScreen); |
| 603 | |
| 604 | /* Free the screen DC */ |
| 605 | ReleaseDC(pScreenPriv->hwndScreen, pScreenPriv->hdcScreen); |
| 606 | |
| 607 | /* Delete tray icon, if we have one */ |
| 608 | if (!pScreenInfo->fNoTrayIcon) |
| 609 | winDeleteNotifyIcon(pScreenPriv); |
| 610 | |
| 611 | /* Free the exit confirmation dialog box, if it exists */ |
| 612 | if (g_hDlgExit != NULL) { |
| 613 | DestroyWindow(g_hDlgExit); |
| 614 | g_hDlgExit = NULL; |
| 615 | } |
| 616 | |
| 617 | /* Kill our window */ |
| 618 | if (pScreenPriv->hwndScreen) { |
| 619 | DestroyWindow(pScreenPriv->hwndScreen); |
| 620 | pScreenPriv->hwndScreen = NULL; |
| 621 | } |
| 622 | |
| 623 | #if defined(XWIN_CLIPBOARD) || defined(XWIN_MULTIWINDOW) |
| 624 | /* Destroy the thread startup mutex */ |
| 625 | pthread_mutex_destroy(&pScreenPriv->pmServerStarted); |
| 626 | #endif |
| 627 | |
| 628 | /* Invalidate our screeninfo's pointer to the screen */ |
| 629 | pScreenInfo->pScreen = NULL; |
| 630 | |
| 631 | /* Free the screen privates for this screen */ |
| 632 | free((pointer) pScreenPriv); |
| 633 | |
| 634 | return fReturn; |
| 635 | } |
| 636 | |
| 637 | /* |
| 638 | * Tell mi what sort of visuals we need. |
| 639 | * |
| 640 | * Generally we only need one visual, as our screen can only |
| 641 | * handle one format at a time, I believe. You may want |
| 642 | * to verify that last sentence. |
| 643 | */ |
| 644 | |
| 645 | static Bool |
| 646 | winInitVisualsShadowGDI(ScreenPtr pScreen) |
| 647 | { |
| 648 | winScreenPriv(pScreen); |
| 649 | winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; |
| 650 | |
| 651 | /* Display debugging information */ |
| 652 | ErrorF("winInitVisualsShadowGDI - Masks %08x %08x %08x BPRGB %d d %d " |
| 653 | "bpp %d\n", |
| 654 | (unsigned int) pScreenPriv->dwRedMask, |
| 655 | (unsigned int) pScreenPriv->dwGreenMask, |
| 656 | (unsigned int) pScreenPriv->dwBlueMask, |
| 657 | (int) pScreenPriv->dwBitsPerRGB, |
| 658 | (int) pScreenInfo->dwDepth, (int) pScreenInfo->dwBPP); |
| 659 | |
| 660 | /* Create a single visual according to the Windows screen depth */ |
| 661 | switch (pScreenInfo->dwDepth) { |
| 662 | case 24: |
| 663 | case 16: |
| 664 | case 15: |
| 665 | /* Setup the real visual */ |
| 666 | if (!miSetVisualTypesAndMasks(pScreenInfo->dwDepth, |
| 667 | TrueColorMask, |
| 668 | pScreenPriv->dwBitsPerRGB, |
| 669 | -1, |
| 670 | pScreenPriv->dwRedMask, |
| 671 | pScreenPriv->dwGreenMask, |
| 672 | pScreenPriv->dwBlueMask)) { |
| 673 | ErrorF("winInitVisualsShadowGDI - miSetVisualTypesAndMasks " |
| 674 | "failed\n"); |
| 675 | return FALSE; |
| 676 | } |
| 677 | |
| 678 | #ifdef XWIN_EMULATEPSEUDO |
| 679 | if (!pScreenInfo->fEmulatePseudo) |
| 680 | break; |
| 681 | |
| 682 | /* Setup a pseudocolor visual */ |
| 683 | if (!miSetVisualTypesAndMasks(8, PseudoColorMask, 8, -1, 0, 0, 0)) { |
| 684 | ErrorF("winInitVisualsShadowGDI - miSetVisualTypesAndMasks " |
| 685 | "failed for PseudoColor\n"); |
| 686 | return FALSE; |
| 687 | } |
| 688 | #endif |
| 689 | break; |
| 690 | |
| 691 | case 8: |
| 692 | if (!miSetVisualTypesAndMasks(pScreenInfo->dwDepth, |
| 693 | PseudoColorMask, |
| 694 | pScreenPriv->dwBitsPerRGB, |
| 695 | PseudoColor, |
| 696 | pScreenPriv->dwRedMask, |
| 697 | pScreenPriv->dwGreenMask, |
| 698 | pScreenPriv->dwBlueMask)) { |
| 699 | ErrorF("winInitVisualsShadowGDI - miSetVisualTypesAndMasks " |
| 700 | "failed\n"); |
| 701 | return FALSE; |
| 702 | } |
| 703 | break; |
| 704 | |
| 705 | default: |
| 706 | ErrorF("winInitVisualsShadowGDI - Unknown screen depth\n"); |
| 707 | return FALSE; |
| 708 | } |
| 709 | |
| 710 | #if CYGDEBUG |
| 711 | winDebug("winInitVisualsShadowGDI - Returning\n"); |
| 712 | #endif |
| 713 | |
| 714 | return TRUE; |
| 715 | } |
| 716 | |
| 717 | /* |
| 718 | * Adjust the proposed video mode |
| 719 | */ |
| 720 | |
| 721 | static Bool |
| 722 | winAdjustVideoModeShadowGDI(ScreenPtr pScreen) |
| 723 | { |
| 724 | winScreenPriv(pScreen); |
| 725 | winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; |
| 726 | HDC hdc; |
| 727 | DWORD dwBPP; |
| 728 | |
| 729 | hdc = GetDC(NULL); |
| 730 | |
| 731 | /* We're in serious trouble if we can't get a DC */ |
| 732 | if (hdc == NULL) { |
| 733 | ErrorF("winAdjustVideoModeShadowGDI - GetDC () failed\n"); |
| 734 | return FALSE; |
| 735 | } |
| 736 | |
| 737 | /* Query GDI for current display depth */ |
| 738 | dwBPP = GetDeviceCaps(hdc, BITSPIXEL); |
| 739 | |
| 740 | /* GDI cannot change the screen depth, so always use GDI's depth */ |
| 741 | pScreenInfo->dwBPP = dwBPP; |
| 742 | |
| 743 | /* Release our DC */ |
| 744 | ReleaseDC(NULL, hdc); |
| 745 | hdc = NULL; |
| 746 | |
| 747 | return TRUE; |
| 748 | } |
| 749 | |
| 750 | /* |
| 751 | * Blt exposed regions to the screen |
| 752 | */ |
| 753 | |
| 754 | static Bool |
| 755 | winBltExposedRegionsShadowGDI(ScreenPtr pScreen) |
| 756 | { |
| 757 | winScreenPriv(pScreen); |
| 758 | winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; |
| 759 | winPrivCmapPtr pCmapPriv = NULL; |
| 760 | HDC hdcUpdate; |
| 761 | PAINTSTRUCT ps; |
| 762 | |
| 763 | /* BeginPaint gives us an hdc that clips to the invalidated region */ |
| 764 | hdcUpdate = BeginPaint(pScreenPriv->hwndScreen, &ps); |
| 765 | |
| 766 | /* Realize the palette, if we have one */ |
| 767 | if (pScreenPriv->pcmapInstalled != NULL) { |
| 768 | pCmapPriv = winGetCmapPriv(pScreenPriv->pcmapInstalled); |
| 769 | |
| 770 | SelectPalette(hdcUpdate, pCmapPriv->hPalette, FALSE); |
| 771 | RealizePalette(hdcUpdate); |
| 772 | } |
| 773 | |
| 774 | /* Our BitBlt will be clipped to the invalidated region */ |
| 775 | BitBlt(hdcUpdate, |
| 776 | 0, 0, |
| 777 | pScreenInfo->dwWidth, pScreenInfo->dwHeight, |
| 778 | pScreenPriv->hdcShadow, 0, 0, SRCCOPY); |
| 779 | |
| 780 | /* EndPaint frees the DC */ |
| 781 | EndPaint(pScreenPriv->hwndScreen, &ps); |
| 782 | |
| 783 | #ifdef XWIN_MULTIWINDOW |
| 784 | /* Redraw all windows */ |
| 785 | if (pScreenInfo->fMultiWindow) |
| 786 | EnumThreadWindows(g_dwCurrentThreadID, winRedrawAllProcShadowGDI, |
| 787 | (LPARAM) pScreenPriv->hwndScreen); |
| 788 | #endif |
| 789 | |
| 790 | return TRUE; |
| 791 | } |
| 792 | |
| 793 | /* |
| 794 | * Do any engine-specific appliation-activation processing |
| 795 | */ |
| 796 | |
| 797 | static Bool |
| 798 | winActivateAppShadowGDI(ScreenPtr pScreen) |
| 799 | { |
| 800 | winScreenPriv(pScreen); |
| 801 | winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; |
| 802 | |
| 803 | /* |
| 804 | * 2004/04/12 - Harold - We perform the restoring or minimizing |
| 805 | * manually for ShadowGDI in fullscreen modes so that this engine |
| 806 | * will perform just like ShadowDD and ShadowDDNL in fullscreen mode; |
| 807 | * if we do not do this then our fullscreen window will appear in the |
| 808 | * z-order when it is deactivated and it can be uncovered by resizing |
| 809 | * or minimizing another window that is on top of it, which is not how |
| 810 | * the DirectDraw engines work. Therefore we keep this code here to |
| 811 | * make sure that all engines work the same in fullscreen mode. |
| 812 | */ |
| 813 | |
| 814 | /* |
| 815 | * Are we active? |
| 816 | * Are we fullscreen? |
| 817 | */ |
| 818 | if (pScreenPriv->fActive && pScreenInfo->fFullScreen) { |
| 819 | /* |
| 820 | * Activating, attempt to bring our window |
| 821 | * to the top of the display |
| 822 | */ |
| 823 | ShowWindow(pScreenPriv->hwndScreen, SW_RESTORE); |
| 824 | } |
| 825 | else if (!pScreenPriv->fActive && pScreenInfo->fFullScreen) { |
| 826 | /* |
| 827 | * Deactivating, stuff our window onto the |
| 828 | * task bar. |
| 829 | */ |
| 830 | ShowWindow(pScreenPriv->hwndScreen, SW_MINIMIZE); |
| 831 | } |
| 832 | |
| 833 | return TRUE; |
| 834 | } |
| 835 | |
| 836 | /* |
| 837 | * Reblit the shadow framebuffer to the screen. |
| 838 | */ |
| 839 | |
| 840 | static Bool |
| 841 | winRedrawScreenShadowGDI(ScreenPtr pScreen) |
| 842 | { |
| 843 | winScreenPriv(pScreen); |
| 844 | winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; |
| 845 | |
| 846 | /* Redraw the whole window, to take account for the new colors */ |
| 847 | BitBlt(pScreenPriv->hdcScreen, |
| 848 | 0, 0, |
| 849 | pScreenInfo->dwWidth, pScreenInfo->dwHeight, |
| 850 | pScreenPriv->hdcShadow, 0, 0, SRCCOPY); |
| 851 | |
| 852 | #ifdef XWIN_MULTIWINDOW |
| 853 | /* Redraw all windows */ |
| 854 | if (pScreenInfo->fMultiWindow) |
| 855 | EnumThreadWindows(g_dwCurrentThreadID, winRedrawAllProcShadowGDI, 0); |
| 856 | #endif |
| 857 | |
| 858 | return TRUE; |
| 859 | } |
| 860 | |
| 861 | /* |
| 862 | * Realize the currently installed colormap |
| 863 | */ |
| 864 | |
| 865 | static Bool |
| 866 | winRealizeInstalledPaletteShadowGDI(ScreenPtr pScreen) |
| 867 | { |
| 868 | winScreenPriv(pScreen); |
| 869 | winPrivCmapPtr pCmapPriv = NULL; |
| 870 | |
| 871 | #if CYGDEBUG |
| 872 | winDebug("winRealizeInstalledPaletteShadowGDI\n"); |
| 873 | #endif |
| 874 | |
| 875 | /* Don't do anything if there is not a colormap */ |
| 876 | if (pScreenPriv->pcmapInstalled == NULL) { |
| 877 | #if CYGDEBUG |
| 878 | winDebug("winRealizeInstalledPaletteShadowGDI - No colormap " |
| 879 | "installed\n"); |
| 880 | #endif |
| 881 | return TRUE; |
| 882 | } |
| 883 | |
| 884 | pCmapPriv = winGetCmapPriv(pScreenPriv->pcmapInstalled); |
| 885 | |
| 886 | /* Realize our palette for the screen */ |
| 887 | if (RealizePalette(pScreenPriv->hdcScreen) == GDI_ERROR) { |
| 888 | ErrorF("winRealizeInstalledPaletteShadowGDI - RealizePalette () " |
| 889 | "failed\n"); |
| 890 | return FALSE; |
| 891 | } |
| 892 | |
| 893 | /* Set the DIB color table */ |
| 894 | if (SetDIBColorTable(pScreenPriv->hdcShadow, |
| 895 | 0, |
| 896 | WIN_NUM_PALETTE_ENTRIES, pCmapPriv->rgbColors) == 0) { |
| 897 | ErrorF("winRealizeInstalledPaletteShadowGDI - SetDIBColorTable () " |
| 898 | "failed\n"); |
| 899 | return FALSE; |
| 900 | } |
| 901 | |
| 902 | return TRUE; |
| 903 | } |
| 904 | |
| 905 | /* |
| 906 | * Install the specified colormap |
| 907 | */ |
| 908 | |
| 909 | static Bool |
| 910 | winInstallColormapShadowGDI(ColormapPtr pColormap) |
| 911 | { |
| 912 | ScreenPtr pScreen = pColormap->pScreen; |
| 913 | |
| 914 | winScreenPriv(pScreen); |
| 915 | winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; |
| 916 | |
| 917 | winCmapPriv(pColormap); |
| 918 | |
| 919 | /* |
| 920 | * Tell Windows to install the new colormap |
| 921 | */ |
| 922 | if (SelectPalette(pScreenPriv->hdcScreen, |
| 923 | pCmapPriv->hPalette, FALSE) == NULL) { |
| 924 | ErrorF("winInstallColormapShadowGDI - SelectPalette () failed\n"); |
| 925 | return FALSE; |
| 926 | } |
| 927 | |
| 928 | /* Realize the palette */ |
| 929 | if (GDI_ERROR == RealizePalette(pScreenPriv->hdcScreen)) { |
| 930 | ErrorF("winInstallColormapShadowGDI - RealizePalette () failed\n"); |
| 931 | return FALSE; |
| 932 | } |
| 933 | |
| 934 | /* Set the DIB color table */ |
| 935 | if (SetDIBColorTable(pScreenPriv->hdcShadow, |
| 936 | 0, |
| 937 | WIN_NUM_PALETTE_ENTRIES, pCmapPriv->rgbColors) == 0) { |
| 938 | ErrorF("winInstallColormapShadowGDI - SetDIBColorTable () failed\n"); |
| 939 | return FALSE; |
| 940 | } |
| 941 | |
| 942 | /* Redraw the whole window, to take account for the new colors */ |
| 943 | BitBlt(pScreenPriv->hdcScreen, |
| 944 | 0, 0, |
| 945 | pScreenInfo->dwWidth, pScreenInfo->dwHeight, |
| 946 | pScreenPriv->hdcShadow, 0, 0, SRCCOPY); |
| 947 | |
| 948 | /* Save a pointer to the newly installed colormap */ |
| 949 | pScreenPriv->pcmapInstalled = pColormap; |
| 950 | |
| 951 | #ifdef XWIN_MULTIWINDOW |
| 952 | /* Redraw all windows */ |
| 953 | if (pScreenInfo->fMultiWindow) |
| 954 | EnumThreadWindows(g_dwCurrentThreadID, winRedrawAllProcShadowGDI, 0); |
| 955 | #endif |
| 956 | |
| 957 | return TRUE; |
| 958 | } |
| 959 | |
| 960 | /* |
| 961 | * Store the specified colors in the specified colormap |
| 962 | */ |
| 963 | |
| 964 | static Bool |
| 965 | winStoreColorsShadowGDI(ColormapPtr pColormap, int ndef, xColorItem * pdefs) |
| 966 | { |
| 967 | ScreenPtr pScreen = pColormap->pScreen; |
| 968 | |
| 969 | winScreenPriv(pScreen); |
| 970 | winCmapPriv(pColormap); |
| 971 | ColormapPtr curpmap = pScreenPriv->pcmapInstalled; |
| 972 | |
| 973 | /* Put the X colormap entries into the Windows logical palette */ |
| 974 | if (SetPaletteEntries(pCmapPriv->hPalette, |
| 975 | pdefs[0].pixel, |
| 976 | ndef, pCmapPriv->peColors + pdefs[0].pixel) == 0) { |
| 977 | ErrorF("winStoreColorsShadowGDI - SetPaletteEntries () failed\n"); |
| 978 | return FALSE; |
| 979 | } |
| 980 | |
| 981 | /* Don't install the Windows palette if the colormap is not installed */ |
| 982 | if (pColormap != curpmap) { |
| 983 | return TRUE; |
| 984 | } |
| 985 | |
| 986 | /* Try to install the newly modified colormap */ |
| 987 | if (!winInstallColormapShadowGDI(pColormap)) { |
| 988 | ErrorF("winInstallColormapShadowGDI - winInstallColormapShadowGDI " |
| 989 | "failed\n"); |
| 990 | return FALSE; |
| 991 | } |
| 992 | |
| 993 | #if 0 |
| 994 | /* Tell Windows that the palette has changed */ |
| 995 | RealizePalette(pScreenPriv->hdcScreen); |
| 996 | |
| 997 | /* Set the DIB color table */ |
| 998 | if (SetDIBColorTable(pScreenPriv->hdcShadow, |
| 999 | pdefs[0].pixel, |
| 1000 | ndef, pCmapPriv->rgbColors + pdefs[0].pixel) == 0) { |
| 1001 | ErrorF("winInstallColormapShadowGDI - SetDIBColorTable () failed\n"); |
| 1002 | return FALSE; |
| 1003 | } |
| 1004 | |
| 1005 | /* Save a pointer to the newly installed colormap */ |
| 1006 | pScreenPriv->pcmapInstalled = pColormap; |
| 1007 | #endif |
| 1008 | |
| 1009 | return TRUE; |
| 1010 | } |
| 1011 | |
| 1012 | /* |
| 1013 | * Colormap initialization procedure |
| 1014 | */ |
| 1015 | |
| 1016 | static Bool |
| 1017 | winCreateColormapShadowGDI(ColormapPtr pColormap) |
| 1018 | { |
| 1019 | LPLOGPALETTE lpPaletteNew = NULL; |
| 1020 | DWORD dwEntriesMax; |
| 1021 | VisualPtr pVisual; |
| 1022 | HPALETTE hpalNew = NULL; |
| 1023 | |
| 1024 | winCmapPriv(pColormap); |
| 1025 | |
| 1026 | /* Get a pointer to the visual that the colormap belongs to */ |
| 1027 | pVisual = pColormap->pVisual; |
| 1028 | |
| 1029 | /* Get the maximum number of palette entries for this visual */ |
| 1030 | dwEntriesMax = pVisual->ColormapEntries; |
| 1031 | |
| 1032 | /* Allocate a Windows logical color palette with max entries */ |
| 1033 | lpPaletteNew = malloc(sizeof(LOGPALETTE) |
| 1034 | + (dwEntriesMax - 1) * sizeof(PALETTEENTRY)); |
| 1035 | if (lpPaletteNew == NULL) { |
| 1036 | ErrorF("winCreateColormapShadowGDI - Couldn't allocate palette " |
| 1037 | "with %d entries\n", (int) dwEntriesMax); |
| 1038 | return FALSE; |
| 1039 | } |
| 1040 | |
| 1041 | /* Zero out the colormap */ |
| 1042 | ZeroMemory(lpPaletteNew, sizeof(LOGPALETTE) |
| 1043 | + (dwEntriesMax - 1) * sizeof(PALETTEENTRY)); |
| 1044 | |
| 1045 | /* Set the logical palette structure */ |
| 1046 | lpPaletteNew->palVersion = 0x0300; |
| 1047 | lpPaletteNew->palNumEntries = dwEntriesMax; |
| 1048 | |
| 1049 | /* Tell Windows to create the palette */ |
| 1050 | hpalNew = CreatePalette(lpPaletteNew); |
| 1051 | if (hpalNew == NULL) { |
| 1052 | ErrorF("winCreateColormapShadowGDI - CreatePalette () failed\n"); |
| 1053 | free(lpPaletteNew); |
| 1054 | return FALSE; |
| 1055 | } |
| 1056 | |
| 1057 | /* Save the Windows logical palette handle in the X colormaps' privates */ |
| 1058 | pCmapPriv->hPalette = hpalNew; |
| 1059 | |
| 1060 | /* Free the palette initialization memory */ |
| 1061 | free(lpPaletteNew); |
| 1062 | |
| 1063 | return TRUE; |
| 1064 | } |
| 1065 | |
| 1066 | /* |
| 1067 | * Colormap destruction procedure |
| 1068 | */ |
| 1069 | |
| 1070 | static Bool |
| 1071 | winDestroyColormapShadowGDI(ColormapPtr pColormap) |
| 1072 | { |
| 1073 | winScreenPriv(pColormap->pScreen); |
| 1074 | winCmapPriv(pColormap); |
| 1075 | |
| 1076 | /* |
| 1077 | * Is colormap to be destroyed the default? |
| 1078 | * |
| 1079 | * Non-default colormaps should have had winUninstallColormap |
| 1080 | * called on them before we get here. The default colormap |
| 1081 | * will not have had winUninstallColormap called on it. Thus, |
| 1082 | * we need to handle the default colormap in a special way. |
| 1083 | */ |
| 1084 | if (pColormap->flags & IsDefault) { |
| 1085 | #if CYGDEBUG |
| 1086 | winDebug("winDestroyColormapShadowGDI - Destroying default " |
| 1087 | "colormap\n"); |
| 1088 | #endif |
| 1089 | |
| 1090 | /* |
| 1091 | * FIXME: Walk the list of all screens, popping the default |
| 1092 | * palette out of each screen device context. |
| 1093 | */ |
| 1094 | |
| 1095 | /* Pop the palette out of the device context */ |
| 1096 | SelectPalette(pScreenPriv->hdcScreen, |
| 1097 | GetStockObject(DEFAULT_PALETTE), FALSE); |
| 1098 | |
| 1099 | /* Clear our private installed colormap pointer */ |
| 1100 | pScreenPriv->pcmapInstalled = NULL; |
| 1101 | } |
| 1102 | |
| 1103 | /* Try to delete the logical palette */ |
| 1104 | if (DeleteObject(pCmapPriv->hPalette) == 0) { |
| 1105 | ErrorF("winDestroyColormap - DeleteObject () failed\n"); |
| 1106 | return FALSE; |
| 1107 | } |
| 1108 | |
| 1109 | /* Invalidate the colormap privates */ |
| 1110 | pCmapPriv->hPalette = NULL; |
| 1111 | |
| 1112 | return TRUE; |
| 1113 | } |
| 1114 | |
| 1115 | /* |
| 1116 | * Set engine specific funtions |
| 1117 | */ |
| 1118 | |
| 1119 | Bool |
| 1120 | winSetEngineFunctionsShadowGDI(ScreenPtr pScreen) |
| 1121 | { |
| 1122 | winScreenPriv(pScreen); |
| 1123 | winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; |
| 1124 | |
| 1125 | /* Set our pointers */ |
| 1126 | pScreenPriv->pwinAllocateFB = winAllocateFBShadowGDI; |
| 1127 | pScreenPriv->pwinFreeFB = winFreeFBShadowGDI; |
| 1128 | pScreenPriv->pwinShadowUpdate = winShadowUpdateGDI; |
| 1129 | pScreenPriv->pwinInitScreen = winInitScreenShadowGDI; |
| 1130 | pScreenPriv->pwinCloseScreen = winCloseScreenShadowGDI; |
| 1131 | pScreenPriv->pwinInitVisuals = winInitVisualsShadowGDI; |
| 1132 | pScreenPriv->pwinAdjustVideoMode = winAdjustVideoModeShadowGDI; |
| 1133 | if (pScreenInfo->fFullScreen) |
| 1134 | pScreenPriv->pwinCreateBoundingWindow = |
| 1135 | winCreateBoundingWindowFullScreen; |
| 1136 | else |
| 1137 | pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowWindowed; |
| 1138 | pScreenPriv->pwinFinishScreenInit = winFinishScreenInitFB; |
| 1139 | pScreenPriv->pwinBltExposedRegions = winBltExposedRegionsShadowGDI; |
| 1140 | pScreenPriv->pwinActivateApp = winActivateAppShadowGDI; |
| 1141 | pScreenPriv->pwinRedrawScreen = winRedrawScreenShadowGDI; |
| 1142 | pScreenPriv->pwinRealizeInstalledPalette = |
| 1143 | winRealizeInstalledPaletteShadowGDI; |
| 1144 | pScreenPriv->pwinInstallColormap = winInstallColormapShadowGDI; |
| 1145 | pScreenPriv->pwinStoreColors = winStoreColorsShadowGDI; |
| 1146 | pScreenPriv->pwinCreateColormap = winCreateColormapShadowGDI; |
| 1147 | pScreenPriv->pwinDestroyColormap = winDestroyColormapShadowGDI; |
| 1148 | pScreenPriv->pwinHotKeyAltTab = |
| 1149 | (winHotKeyAltTabProcPtr) (void (*)(void)) NoopDDA; |
| 1150 | pScreenPriv->pwinCreatePrimarySurface = |
| 1151 | (winCreatePrimarySurfaceProcPtr) (void (*)(void)) NoopDDA; |
| 1152 | pScreenPriv->pwinReleasePrimarySurface = |
| 1153 | (winReleasePrimarySurfaceProcPtr) (void (*)(void)) NoopDDA; |
| 1154 | #ifdef XWIN_MULTIWINDOW |
| 1155 | pScreenPriv->pwinFinishCreateWindowsWindow = |
| 1156 | (winFinishCreateWindowsWindowProcPtr) (void (*)(void)) NoopDDA; |
| 1157 | #endif |
| 1158 | |
| 1159 | return TRUE; |
| 1160 | } |