/* *Copyright (C) 1994-2000 The XFree86 Project, Inc. All Rights Reserved. * *Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the *"Software"), to deal in the Software without restriction, including *without limitation the rights to use, copy, modify, merge, publish, *distribute, sublicense, and/or sell copies of the Software, and to *permit persons to whom the Software is furnished to do so, subject to *the following conditions: * *The above copyright notice and this permission notice shall be *included in all copies or substantial portions of the Software. * *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND *NONINFRINGEMENT. IN NO EVENT SHALL THE XFREE86 PROJECT BE LIABLE FOR *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * *Except as contained in this notice, the name of the XFree86 Project *shall not be used in advertising or otherwise to promote the sale, use *or other dealings in this Software without prior written authorization *from the XFree86 Project. * * Authors: Harold L Hunt II */ /* $XFree86: xc/programs/Xserver/hw/xwin/winshadgdi.c,v 1.23 2003/07/29 21:25:18 dawes Exp $ */ #include "win.h" /* * Local function prototypes */ BOOL CALLBACK winRedrawAllProcShadowGDI (HWND hwnd, LPARAM lParam); /* * Internal function to get the DIB format that is compatible with the screen */ static Bool winQueryScreenDIBFormat (ScreenPtr pScreen, BITMAPINFOHEADER *pbmih) { winScreenPriv(pScreen); HBITMAP hbmp; #if CYGDEBUG LPDWORD pdw = NULL; #endif /* Create a memory bitmap compatible with the screen */ hbmp = CreateCompatibleBitmap (pScreenPriv->hdcScreen, 1, 1); if (hbmp == NULL) { ErrorF ("winQueryScreenDIBFormat - CreateCompatibleBitmap failed\n"); return FALSE; } /* Initialize our bitmap info header */ ZeroMemory (pbmih, sizeof (BITMAPINFOHEADER) + 256 * sizeof (RGBQUAD)); pbmih->biSize = sizeof (BITMAPINFOHEADER); /* Get the biBitCount */ if (!GetDIBits (pScreenPriv->hdcScreen, hbmp, 0, 1, NULL, (BITMAPINFO*) pbmih, DIB_RGB_COLORS)) { ErrorF ("winQueryScreenDIBFormat - First call to GetDIBits failed\n"); DeleteObject (hbmp); return FALSE; } #if CYGDEBUG /* Get a pointer to bitfields */ pdw = (DWORD*) ((CARD8*)pbmih + sizeof (BITMAPINFOHEADER)); ErrorF ("winQueryScreenDIBFormat - First call masks: %08x %08x %08x\n", pdw[0], pdw[1], pdw[2]); #endif /* Get optimal color table, or the optimal bitfields */ if (!GetDIBits (pScreenPriv->hdcScreen, hbmp, 0, 1, NULL, (BITMAPINFO*)pbmih, DIB_RGB_COLORS)) { ErrorF ("winQueryScreenDIBFormat - Second call to GetDIBits " "failed\n"); DeleteObject (hbmp); return FALSE; } /* Free memory */ DeleteObject (hbmp); return TRUE; } /* * Internal function to determine the GDI bits per rgb and bit masks */ static Bool winQueryRGBBitsAndMasks (ScreenPtr pScreen) { winScreenPriv(pScreen); BITMAPINFOHEADER *pbmih = NULL; Bool fReturn = TRUE; LPDWORD pdw = NULL; DWORD dwRedBits, dwGreenBits, dwBlueBits; /* Color masks for 8 bpp are standardized */ if (GetDeviceCaps (pScreenPriv->hdcScreen, RASTERCAPS) & RC_PALETTE) { /* * RGB BPP for 8 bit palletes is always 8 * and the color masks are always 0. */ pScreenPriv->dwBitsPerRGB = 8; pScreenPriv->dwRedMask = 0x0L; pScreenPriv->dwGreenMask = 0x0L; pScreenPriv->dwBlueMask = 0x0L; return TRUE; } /* Color masks for 24 bpp are standardized */ if (GetDeviceCaps (pScreenPriv->hdcScreen, PLANES) * GetDeviceCaps (pScreenPriv->hdcScreen, BITSPIXEL) == 24) { ErrorF ("winQueryRGBBitsAndMasks - GetDeviceCaps (BITSPIXEL) " "returned 24 for the screen. Using default 24bpp masks.\n"); /* 8 bits per primary color */ pScreenPriv->dwBitsPerRGB = 8; /* Set screen privates masks */ pScreenPriv->dwRedMask = WIN_24BPP_MASK_RED; pScreenPriv->dwGreenMask = WIN_24BPP_MASK_GREEN; pScreenPriv->dwBlueMask = WIN_24BPP_MASK_BLUE; return TRUE; } /* Allocate a bitmap header and color table */ pbmih = (BITMAPINFOHEADER*) malloc (sizeof (BITMAPINFOHEADER) + 256 * sizeof (RGBQUAD)); if (pbmih == NULL) { ErrorF ("winQueryRGBBitsAndMasks - malloc failed\n"); return FALSE; } /* Get screen description */ if (winQueryScreenDIBFormat (pScreen, pbmih)) { /* Get a pointer to bitfields */ pdw = (DWORD*) ((CARD8*)pbmih + sizeof (BITMAPINFOHEADER)); #if CYGDEBUG ErrorF ("winQueryRGBBitsAndMasks - Masks: %08x %08x %08x\n", pdw[0], pdw[1], pdw[2]); #endif /* Count the number of bits in each mask */ dwRedBits = winCountBits (pdw[0]); dwGreenBits = winCountBits (pdw[1]); dwBlueBits = winCountBits (pdw[2]); /* Find maximum bits per red, green, blue */ if (dwRedBits > dwGreenBits && dwRedBits > dwBlueBits) pScreenPriv->dwBitsPerRGB = dwRedBits; else if (dwGreenBits > dwRedBits && dwGreenBits > dwBlueBits) pScreenPriv->dwBitsPerRGB = dwGreenBits; else pScreenPriv->dwBitsPerRGB = dwBlueBits; /* Set screen privates masks */ pScreenPriv->dwRedMask = pdw[0]; pScreenPriv->dwGreenMask = pdw[1]; pScreenPriv->dwBlueMask = pdw[2]; } else { ErrorF ("winQueryRGBBitsAndMasks - winQueryScreenDIBFormat failed\n"); free (pbmih); fReturn = FALSE; } /* Free memory */ free (pbmih); return fReturn; } /* * Redraw all ---? */ BOOL CALLBACK winRedrawAllProcShadowGDI (HWND hwnd, LPARAM lParam) { char strClassName[100]; if (GetClassName (hwnd, strClassName, 100)) { if (strncmp (WINDOW_CLASS_X, strClassName, strlen (WINDOW_CLASS_X)) == 0) { InvalidateRect (hwnd, NULL, FALSE); UpdateWindow (hwnd); } } return TRUE; } /* * Allocate a DIB for the shadow framebuffer GDI server */ Bool winAllocateFBShadowGDI (ScreenPtr pScreen) { winScreenPriv(pScreen); winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; BITMAPINFOHEADER *pbmih = NULL; DIBSECTION dibsection; Bool fReturn = TRUE; /* Get device contexts for the screen and shadow bitmap */ pScreenPriv->hdcScreen = GetDC (pScreenPriv->hwndScreen); pScreenPriv->hdcShadow = CreateCompatibleDC (pScreenPriv->hdcScreen); /* Allocate bitmap info header */ pbmih = (BITMAPINFOHEADER*) malloc (sizeof (BITMAPINFOHEADER) + 256 * sizeof (RGBQUAD)); if (pbmih == NULL) { ErrorF ("winAllocateFBShadowGDI - malloc () failed\n"); return FALSE; } /* Query the screen format */ fReturn = winQueryScreenDIBFormat (pScreen, pbmih); /* Describe shadow bitmap to be created */ pbmih->biWidth = pScreenInfo->dwWidth; pbmih->biHeight = -pScreenInfo->dwHeight; ErrorF ("winAllocateFBShadowGDI - Creating DIB with width: %d height: %d " "depth: %d\n", pbmih->biWidth, -pbmih->biHeight, pbmih->biBitCount); /* Create a DI shadow bitmap with a bit pointer */ pScreenPriv->hbmpShadow = CreateDIBSection (pScreenPriv->hdcScreen, (BITMAPINFO *) pbmih, DIB_RGB_COLORS, (VOID**) &pScreenInfo->pfb, NULL, 0); if (pScreenPriv->hbmpShadow == NULL || pScreenInfo->pfb == NULL) { ErrorF ("winAllocateFBShadowGDI - CreateDIBSection failed\n"); return FALSE; } else { #if CYGDEBUG ErrorF ("winAllocateFBShadowGDI - Shadow buffer allocated\n"); #endif } /* Get information about the bitmap that was allocated */ GetObject (pScreenPriv->hbmpShadow, sizeof (dibsection), &dibsection); #if CYGDEBUG || YES /* Print information about bitmap allocated */ ErrorF ("winAllocateFBShadowGDI - Dibsection width: %d height: %d " "depth: %d size image: %d\n", dibsection.dsBmih.biWidth, dibsection.dsBmih.biHeight, dibsection.dsBmih.biBitCount, dibsection.dsBmih.biSizeImage); #endif /* Select the shadow bitmap into the shadow DC */ SelectObject (pScreenPriv->hdcShadow, pScreenPriv->hbmpShadow); #if CYGDEBUG ErrorF ("winAllocateFBShadowGDI - Attempting a shadow blit\n"); #endif /* Do a test blit from the shadow to the screen, I think */ fReturn = BitBlt (pScreenPriv->hdcScreen, 0, 0, pScreenInfo->dwWidth, pScreenInfo->dwHeight, pScreenPriv->hdcShadow, 0, 0, SRCCOPY); if (fReturn) { #if CYGDEBUG ErrorF ("winAllocateFBShadowGDI - Shadow blit success\n"); #endif } else { ErrorF ("winAllocateFBShadowGDI - Shadow blit failure\n"); return FALSE; } /* Look for height weirdness */ if (dibsection.dsBmih.biHeight < 0) { /* FIXME: Figure out why biHeight is sometimes negative */ ErrorF ("winAllocateFBShadowGDI - WEIRDNESS - biHeight " "still negative: %d\n" "winAllocateFBShadowGDI - WEIRDNESS - Flipping biHeight sign\n", dibsection.dsBmih.biHeight); dibsection.dsBmih.biHeight = -dibsection.dsBmih.biHeight; } /* Set screeninfo stride */ pScreenInfo->dwStride = ((dibsection.dsBmih.biSizeImage / dibsection.dsBmih.biHeight) * 8) / pScreenInfo->dwBPP; #if CYGDEBUG || YES ErrorF ("winAllocateFBShadowGDI - Created shadow stride: %d\n", pScreenInfo->dwStride); #endif /* See if the shadow bitmap will be larger than the DIB size limit */ if (pScreenInfo->dwWidth * pScreenInfo->dwHeight * pScreenInfo->dwBPP >= WIN_DIB_MAXIMUM_SIZE) { ErrorF ("winAllocateFBShadowGDI - Requested DIB (bitmap) " "will be larger than %d MB. The surface may fail to be " "allocated on Windows 95, 98, or Me, due to a %d MB limit in " "DIB size. This limit does not apply to Windows NT/2000, and " "this message may be ignored on those platforms.\n", WIN_DIB_MAXIMUM_SIZE_MB, WIN_DIB_MAXIMUM_SIZE_MB); } /* Determine our color masks */ if (!winQueryRGBBitsAndMasks (pScreen)) { ErrorF ("winAllocateFBShadowGDI - winQueryRGBBitsAndMasks failed\n"); return FALSE; } /* Redraw all windows */ if (pScreenInfo->fMultiWindow) EnumWindows(winRedrawAllProcShadowGDI, 0); return fReturn; } /* * Blit the damaged regions of the shadow fb to the screen */ void winShadowUpdateGDI (ScreenPtr pScreen, shadowBufPtr pBuf) { winScreenPriv(pScreen); winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; RegionPtr damage = &pBuf->damage; DWORD dwBox = REGION_NUM_RECTS (damage); BoxPtr pBox = REGION_RECTS (damage); int x, y, w, h; HRGN hrgnTemp = NULL, hrgnCombined = NULL; #if WIN_UPDATE_STATS static DWORD s_dwNonUnitRegions = 0; static DWORD s_dwTotalUpdates = 0; static DWORD s_dwTotalBoxes = 0; #endif /* * Return immediately if the app is not active * and we are fullscreen, or if we have a bad display depth */ if ((!pScreenPriv->fActive && pScreenInfo->fFullScreen) || pScreenPriv->fBadDepth) return; #if WIN_UPDATE_STATS ++s_dwTotalUpdates; s_dwTotalBoxes += dwBox; if (dwBox != 1) { ++s_dwNonUnitRegions; ErrorF ("winShadowUpdatGDI - dwBox: %d\n", dwBox); } if ((s_dwTotalUpdates % 100) == 0) ErrorF ("winShadowUpdateGDI - %d%% non-unity regions, avg boxes: %d " "nu: %d tu: %d\n", (s_dwNonUnitRegions * 100) / s_dwTotalUpdates, s_dwTotalBoxes / s_dwTotalUpdates, s_dwNonUnitRegions, s_dwTotalUpdates); #endif /* WIN_UPDATE_STATS */ /* * Handle small regions with multiple blits, * handle large regions by creating a clipping region and * doing a single blit constrained to that clipping region. */ if (pScreenInfo->dwClipUpdatesNBoxes == 0 || dwBox < pScreenInfo->dwClipUpdatesNBoxes) { /* Loop through all boxes in the damaged region */ while (dwBox--) { /* * Calculate x offset, y offset, width, and height for * current damage box */ x = pBox->x1; y = pBox->y1; w = pBox->x2 - pBox->x1; h = pBox->y2 - pBox->y1; BitBlt (pScreenPriv->hdcScreen, x, y, w, h, pScreenPriv->hdcShadow, x, y, SRCCOPY); /* Get a pointer to the next box */ ++pBox; } } else { BoxPtr pBoxExtents = REGION_EXTENTS (pScreen, damage); /* Compute a GDI region from the damaged region */ hrgnCombined = CreateRectRgn (pBox->x1, pBox->y1, pBox->x2, pBox->y2); dwBox--; pBox++; while (dwBox--) { hrgnTemp = CreateRectRgn (pBox->x1, pBox->y1, pBox->x2, pBox->y2); CombineRgn (hrgnCombined, hrgnCombined, hrgnTemp, RGN_OR); DeleteObject (hrgnTemp); pBox++; } /* Install the GDI region as a clipping region */ SelectClipRgn (pScreenPriv->hdcScreen, hrgnCombined); DeleteObject (hrgnCombined); hrgnCombined = NULL; /* * Blit the shadow buffer to the screen, * constrained to the clipping region. */ BitBlt (pScreenPriv->hdcScreen, pBoxExtents->x1, pBoxExtents->y1, pBoxExtents->x2 - pBoxExtents->x1, pBoxExtents->y2 - pBoxExtents->y1, pScreenPriv->hdcShadow, pBoxExtents->x1, pBoxExtents->y1, SRCCOPY); /* Reset the clip region */ SelectClipRgn (pScreenPriv->hdcScreen, NULL); } /* Redraw all windows */ if (pScreenInfo->fMultiWindow) EnumWindows(winRedrawAllProcShadowGDI, 0); } /* See Porting Layer Definition - p. 33 */ /* * We wrap whatever CloseScreen procedure was specified by fb; * a pointer to said procedure is stored in our privates. */ Bool winCloseScreenShadowGDI (int nIndex, ScreenPtr pScreen) { winScreenPriv(pScreen); winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; Bool fReturn; #if CYGDEBUG ErrorF ("winCloseScreenShadowGDI - Freeing screen resources\n"); #endif /* Flag that the screen is closed */ pScreenPriv->fClosed = TRUE; pScreenPriv->fActive = FALSE; /* Call the wrapped CloseScreen procedure */ pScreen->CloseScreen = pScreenPriv->CloseScreen; fReturn = (*pScreen->CloseScreen) (nIndex, pScreen); /* Delete the window property */ RemoveProp (pScreenPriv->hwndScreen, WIN_SCR_PROP); /* Free the shadow DC; which allows the bitmap to be freed */ DeleteDC (pScreenPriv->hdcShadow); /* Free the shadow bitmap */ DeleteObject (pScreenPriv->hbmpShadow); /* Free the screen DC */ ReleaseDC (pScreenPriv->hwndScreen, pScreenPriv->hdcScreen); /* Delete tray icon, if we have one */ if (!pScreenInfo->fNoTrayIcon) winDeleteNotifyIcon (pScreenPriv); /* Free the exit confirmation dialog box, if it exists */ if (g_hDlgExit != NULL) { DestroyWindow (g_hDlgExit); g_hDlgExit = NULL; } /* Kill our window */ if (pScreenPriv->hwndScreen) { DestroyWindow (pScreenPriv->hwndScreen); pScreenPriv->hwndScreen = NULL; } /* Destroy the thread startup mutex */ pthread_mutex_destroy (&pScreenPriv->pmServerStarted); /* Invalidate our screeninfo's pointer to the screen */ pScreenInfo->pScreen = NULL; /* Invalidate the ScreenInfo's fb pointer */ pScreenInfo->pfb = NULL; /* Free the screen privates for this screen */ free ((pointer) pScreenPriv); return fReturn; } /* * Tell mi what sort of visuals we need. * * Generally we only need one visual, as our screen can only * handle one format at a time, I believe. You may want * to verify that last sentence. */ Bool winInitVisualsShadowGDI (ScreenPtr pScreen) { winScreenPriv(pScreen); winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; /* Display debugging information */ ErrorF ("winInitVisualsShadowGDI - Masks %08x %08x %08x BPRGB %d d %d " "bpp %d\n", pScreenPriv->dwRedMask, pScreenPriv->dwGreenMask, pScreenPriv->dwBlueMask, pScreenPriv->dwBitsPerRGB, pScreenInfo->dwDepth, pScreenInfo->dwBPP); /* Create a single visual according to the Windows screen depth */ switch (pScreenInfo->dwDepth) { case 24: case 16: case 15: #if defined(XFree86Server) /* Setup the real visual */ if (!miSetVisualTypesAndMasks (pScreenInfo->dwDepth, TrueColorMask, pScreenPriv->dwBitsPerRGB, -1, pScreenPriv->dwRedMask, pScreenPriv->dwGreenMask, pScreenPriv->dwBlueMask)) { ErrorF ("winInitVisualsShadowGDI - miSetVisualTypesAndMasks " "failed\n"); return FALSE; } #if WIN_EMULATE_PSEUDO_SUPPORT if (!pScreenInfo->fEmulatePseudo) break; /* Setup a pseudocolor visual */ if (!miSetVisualTypesAndMasks (8, PseudoColorMask, 8, -1, 0, 0, 0)) { ErrorF ("winInitVisualsShadowGDI - miSetVisualTypesAndMasks " "failed for PseudoColor\n"); return FALSE; } #endif #else /* XFree86Server */ /* Setup the real visual */ if (!fbSetVisualTypesAndMasks (pScreenInfo->dwDepth, TrueColorMask, pScreenPriv->dwBitsPerRGB, pScreenPriv->dwRedMask, pScreenPriv->dwGreenMask, pScreenPriv->dwBlueMask)) { ErrorF ("winInitVisualsShadowGDI - fbSetVisualTypesAndMasks " "failed for TrueColor\n"); return FALSE; } #if WIN_EMULATE_PSEUDO_SUPPORT if (!pScreenInfo->fEmulatePseudo) break; /* Setup a pseudocolor visual */ if (!fbSetVisualTypesAndMasks (8, PseudoColorMask, 8, 0, 0, 0)) { ErrorF ("winInitVisualsShadowGDI - fbSetVisualTypesAndMasks " "failed for PseudoColor\n"); return FALSE; } #endif #endif /* XFree86Server */ break; case 8: #if defined(XFree86Server) if (!miSetVisualTypesAndMasks (pScreenInfo->dwDepth, PseudoColorMask, pScreenPriv->dwBitsPerRGB, PseudoColor, pScreenPriv->dwRedMask, pScreenPriv->dwGreenMask, pScreenPriv->dwBlueMask)) { ErrorF ("winInitVisualsShadowGDI - miSetVisualTypesAndMasks " "failed\n"); return FALSE; } #else /* XFree86Server */ if (!fbSetVisualTypesAndMasks (pScreenInfo->dwDepth, PseudoColorMask, pScreenPriv->dwBitsPerRGB, pScreenPriv->dwRedMask, pScreenPriv->dwGreenMask, pScreenPriv->dwBlueMask)) { ErrorF ("winInitVisualsShadowGDI - fbSetVisualTypesAndMasks " "failed\n"); return FALSE; } #endif break; default: ErrorF ("winInitVisualsShadowGDI - Unknown screen depth\n"); return FALSE; } #if CYGDEBUG ErrorF ("winInitVisualsShadowGDI - Returning\n"); #endif return TRUE; } /* * Adjust the proposed video mode */ Bool winAdjustVideoModeShadowGDI (ScreenPtr pScreen) { winScreenPriv(pScreen); winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; HDC hdc; DWORD dwBPP; hdc = GetDC (NULL); /* We're in serious trouble if we can't get a DC */ if (hdc == NULL) { ErrorF ("winAdjustVideoModeShadowGDI - GetDC () failed\n"); return FALSE; } /* Query GDI for current display depth */ dwBPP = GetDeviceCaps (hdc, BITSPIXEL); /* GDI cannot change the screen depth */ if (pScreenInfo->dwBPP == WIN_DEFAULT_BPP) { /* No -depth parameter passed, let the user know the depth being used */ ErrorF ("winAdjustVideoModeShadowGDI - Using Windows display " "depth of %d bits per pixel\n", dwBPP); /* Use GDI's depth */ pScreenInfo->dwBPP = dwBPP; } else if (dwBPP != pScreenInfo->dwBPP) { /* Warn user if GDI depth is different than -depth parameter */ ErrorF ("winAdjustVideoModeShadowGDI - Command line bpp: %d, "\ "using bpp: %d\n", pScreenInfo->dwBPP, dwBPP); /* We'll use GDI's depth */ pScreenInfo->dwBPP = dwBPP; } /* Release our DC */ ReleaseDC (NULL, hdc); hdc = NULL; return TRUE; } /* * Blt exposed regions to the screen */ Bool winBltExposedRegionsShadowGDI (ScreenPtr pScreen) { winScreenPriv(pScreen); winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; winPrivCmapPtr pCmapPriv = NULL; HDC hdcUpdate; PAINTSTRUCT ps; /* BeginPaint gives us an hdc that clips to the invalidated region */ hdcUpdate = BeginPaint (pScreenPriv->hwndScreen, &ps); /* Realize the palette, if we have one */ if (pScreenPriv->pcmapInstalled != NULL) { pCmapPriv = winGetCmapPriv (pScreenPriv->pcmapInstalled); SelectPalette (hdcUpdate, pCmapPriv->hPalette, FALSE); RealizePalette (hdcUpdate); } /* Our BitBlt will be clipped to the invalidated region */ BitBlt (hdcUpdate, 0, 0, pScreenInfo->dwWidth, pScreenInfo->dwHeight, pScreenPriv->hdcShadow, 0, 0, SRCCOPY); /* EndPaint frees the DC */ EndPaint (pScreenPriv->hwndScreen, &ps); /* Redraw all windows */ if (pScreenInfo->fMultiWindow) EnumWindows(winRedrawAllProcShadowGDI, 0); return TRUE; } /* * Do any engine-specific appliation-activation processing */ Bool winActivateAppShadowGDI (ScreenPtr pScreen) { winScreenPriv(pScreen); winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; #if CYGDEBUG ErrorF ("winActivateAppShadowGDI\n"); #endif /* * Are we active? * Are we fullscreen? */ if (pScreenPriv->fActive && pScreenInfo->fFullScreen) { /* * Activating, attempt to bring our window * to the top of the display */ ShowWindow (pScreenPriv->hwndScreen, SW_RESTORE); } else if (!pScreenPriv->fActive && pScreenInfo->fFullScreen) { /* * Deactivating, stuff our window onto the * task bar. */ ShowWindow (pScreenPriv->hwndScreen, SW_MINIMIZE); } #if CYGDEBUG ErrorF ("winActivateAppShadowGDI - Returning\n"); #endif return TRUE; } /* * Reblit the shadow framebuffer to the screen. */ Bool winRedrawScreenShadowGDI (ScreenPtr pScreen) { winScreenPriv(pScreen); winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; /* Redraw the whole window, to take account for the new colors */ BitBlt (pScreenPriv->hdcScreen, 0, 0, pScreenInfo->dwWidth, pScreenInfo->dwHeight, pScreenPriv->hdcShadow, 0, 0, SRCCOPY); /* Redraw all windows */ if (pScreenInfo->fMultiWindow) EnumWindows(winRedrawAllProcShadowGDI, 0); return TRUE; } /* * Realize the currently installed colormap */ Bool winRealizeInstalledPaletteShadowGDI (ScreenPtr pScreen) { winScreenPriv(pScreen); winPrivCmapPtr pCmapPriv = NULL; #if CYGDEBUG ErrorF ("winRealizeInstalledPaletteShadowGDI\n"); #endif /* Don't do anything if there is not a colormap */ if (pScreenPriv->pcmapInstalled == NULL) { #if CYGDEBUG ErrorF ("winRealizeInstalledPaletteShadowGDI - No colormap " "installed\n"); #endif return TRUE; } pCmapPriv = winGetCmapPriv (pScreenPriv->pcmapInstalled); /* Realize our palette for the screen */ if (RealizePalette (pScreenPriv->hdcScreen) == GDI_ERROR) { ErrorF ("winRealizeInstalledPaletteShadowGDI - RealizePalette () " "failed\n"); return FALSE; } /* Set the DIB color table */ if (SetDIBColorTable (pScreenPriv->hdcShadow, 0, WIN_NUM_PALETTE_ENTRIES, pCmapPriv->rgbColors) == 0) { ErrorF ("winRealizeInstalledPaletteShadowGDI - SetDIBColorTable () " "failed\n"); return FALSE; } return TRUE; } /* * Install the specified colormap */ Bool winInstallColormapShadowGDI (ColormapPtr pColormap) { ScreenPtr pScreen = pColormap->pScreen; winScreenPriv(pScreen); winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; winCmapPriv(pColormap); /* * Tell Windows to install the new colormap */ if (SelectPalette (pScreenPriv->hdcScreen, pCmapPriv->hPalette, FALSE) == NULL) { ErrorF ("winInstallColormapShadowGDI - SelectPalette () failed\n"); return FALSE; } /* Realize the palette */ if (GDI_ERROR == RealizePalette (pScreenPriv->hdcScreen)) { ErrorF ("winInstallColormapShadowGDI - RealizePalette () failed\n"); return FALSE; } /* Set the DIB color table */ if (SetDIBColorTable (pScreenPriv->hdcShadow, 0, WIN_NUM_PALETTE_ENTRIES, pCmapPriv->rgbColors) == 0) { ErrorF ("winInstallColormapShadowGDI - SetDIBColorTable () failed\n"); return FALSE; } /* Redraw the whole window, to take account for the new colors */ BitBlt (pScreenPriv->hdcScreen, 0, 0, pScreenInfo->dwWidth, pScreenInfo->dwHeight, pScreenPriv->hdcShadow, 0, 0, SRCCOPY); /* Save a pointer to the newly installed colormap */ pScreenPriv->pcmapInstalled = pColormap; /* Redraw all windows */ if (pScreenInfo->fMultiWindow) EnumWindows(winRedrawAllProcShadowGDI, 0); return TRUE; } /* * Store the specified colors in the specified colormap */ Bool winStoreColorsShadowGDI (ColormapPtr pColormap, int ndef, xColorItem *pdefs) { ScreenPtr pScreen = pColormap->pScreen; winScreenPriv(pScreen); winCmapPriv(pColormap); ColormapPtr curpmap = pScreenPriv->pcmapInstalled; /* Put the X colormap entries into the Windows logical palette */ if (SetPaletteEntries (pCmapPriv->hPalette, pdefs[0].pixel, ndef, pCmapPriv->peColors + pdefs[0].pixel) == 0) { ErrorF ("winStoreColorsShadowGDI - SetPaletteEntries () failed\n"); return FALSE; } /* Don't install the Windows palette if the colormap is not installed */ if (pColormap != curpmap) { return TRUE; } /* Try to install the newly modified colormap */ if (!winInstallColormapShadowGDI (pColormap)) { ErrorF ("winInstallColormapShadowGDI - winInstallColormapShadowGDI " "failed\n"); return FALSE; } #if 0 /* Tell Windows that the palette has changed */ RealizePalette (pScreenPriv->hdcScreen); /* Set the DIB color table */ if (SetDIBColorTable (pScreenPriv->hdcShadow, pdefs[0].pixel, ndef, pCmapPriv->rgbColors + pdefs[0].pixel) == 0) { ErrorF ("winInstallColormapShadowGDI - SetDIBColorTable () failed\n"); return FALSE; } /* Save a pointer to the newly installed colormap */ pScreenPriv->pcmapInstalled = pColormap; #endif return TRUE; } /* * Colormap initialization procedure */ Bool winCreateColormapShadowGDI (ColormapPtr pColormap) { LPLOGPALETTE lpPaletteNew = NULL; DWORD dwEntriesMax; VisualPtr pVisual; HPALETTE hpalNew = NULL; winCmapPriv(pColormap); /* Get a pointer to the visual that the colormap belongs to */ pVisual = pColormap->pVisual; /* Get the maximum number of palette entries for this visual */ dwEntriesMax = pVisual->ColormapEntries; /* Allocate a Windows logical color palette with max entries */ lpPaletteNew = malloc (sizeof (LOGPALETTE) + (dwEntriesMax - 1) * sizeof (PALETTEENTRY)); if (lpPaletteNew == NULL) { ErrorF ("winCreateColormapShadowGDI - Couldn't allocate palette " "with %d entries\n", dwEntriesMax); return FALSE; } /* Zero out the colormap */ ZeroMemory (lpPaletteNew, sizeof (LOGPALETTE) + (dwEntriesMax - 1) * sizeof (PALETTEENTRY)); /* Set the logical palette structure */ lpPaletteNew->palVersion = 0x0300; lpPaletteNew->palNumEntries = dwEntriesMax; /* Tell Windows to create the palette */ hpalNew = CreatePalette (lpPaletteNew); if (hpalNew == NULL) { ErrorF ("winCreateColormapShadowGDI - CreatePalette () failed\n"); free (lpPaletteNew); return FALSE; } /* Save the Windows logical palette handle in the X colormaps' privates */ pCmapPriv->hPalette = hpalNew; /* Free the palette initialization memory */ free (lpPaletteNew); return TRUE; } /* * Colormap destruction procedure */ Bool winDestroyColormapShadowGDI (ColormapPtr pColormap) { winScreenPriv(pColormap->pScreen); winCmapPriv(pColormap); /* * Is colormap to be destroyed the default? * * Non-default colormaps should have had winUninstallColormap * called on them before we get here. The default colormap * will not have had winUninstallColormap called on it. Thus, * we need to handle the default colormap in a special way. */ if (pColormap->flags & IsDefault) { #if CYGDEBUG ErrorF ("winDestroyColormapShadowGDI - Destroying default " "colormap\n"); #endif /* * FIXME: Walk the list of all screens, popping the default * palette out of each screen device context. */ /* Pop the palette out of the device context */ SelectPalette (pScreenPriv->hdcScreen, GetStockObject (DEFAULT_PALETTE), FALSE); /* Clear our private installed colormap pointer */ pScreenPriv->pcmapInstalled = NULL; } /* Try to delete the logical palette */ if (DeleteObject (pCmapPriv->hPalette) == 0) { ErrorF ("winDestroyColormap - DeleteObject () failed\n"); return FALSE; } /* Invalidate the colormap privates */ pCmapPriv->hPalette = NULL; return TRUE; } /* * Set engine specific funtions */ Bool winSetEngineFunctionsShadowGDI (ScreenPtr pScreen) { winScreenPriv(pScreen); winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; /* Set our pointers */ pScreenPriv->pwinAllocateFB = winAllocateFBShadowGDI; pScreenPriv->pwinShadowUpdate = winShadowUpdateGDI; pScreenPriv->pwinCloseScreen = winCloseScreenShadowGDI; pScreenPriv->pwinInitVisuals = winInitVisualsShadowGDI; pScreenPriv->pwinAdjustVideoMode = winAdjustVideoModeShadowGDI; if (pScreenInfo->fFullScreen) pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowFullScreen; else pScreenPriv->pwinCreateBoundingWindow = winCreateBoundingWindowWindowed; pScreenPriv->pwinFinishScreenInit = winFinishScreenInitFB; pScreenPriv->pwinBltExposedRegions = winBltExposedRegionsShadowGDI; pScreenPriv->pwinActivateApp = winActivateAppShadowGDI; pScreenPriv->pwinRedrawScreen = winRedrawScreenShadowGDI; pScreenPriv->pwinRealizeInstalledPalette = winRealizeInstalledPaletteShadowGDI; pScreenPriv->pwinInstallColormap = winInstallColormapShadowGDI; pScreenPriv->pwinStoreColors = winStoreColorsShadowGDI; pScreenPriv->pwinCreateColormap = winCreateColormapShadowGDI; pScreenPriv->pwinDestroyColormap = winDestroyColormapShadowGDI; pScreenPriv->pwinHotKeyAltTab = (winHotKeyAltTabProcPtr) (void (*)())NoopDDA; pScreenPriv->pwinCreatePrimarySurface = (winCreatePrimarySurfaceProcPtr) (void (*)())NoopDDA; pScreenPriv->pwinReleasePrimarySurface = (winReleasePrimarySurfaceProcPtr) (void (*)())NoopDDA; return TRUE; }