diff options
Diffstat (limited to 'xorg-server/hw/xwin/winshadgdi.c')
| -rw-r--r-- | xorg-server/hw/xwin/winshadgdi.c | 2604 |
1 files changed, 1302 insertions, 1302 deletions
diff --git a/xorg-server/hw/xwin/winshadgdi.c b/xorg-server/hw/xwin/winshadgdi.c index fbc15abb3..09135c702 100644 --- a/xorg-server/hw/xwin/winshadgdi.c +++ b/xorg-server/hw/xwin/winshadgdi.c @@ -1,1302 +1,1302 @@ -/* - *Copyright (C) 2001-2004 Harold L Hunt II 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 HAROLD L HUNT II 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 Harold L Hunt II - *shall not be used in advertising or otherwise to promote the sale, use - *or other dealings in this Software without prior written authorization - *from Harold L Hunt II. - * - * Authors: Harold L Hunt II - */ - -#ifdef HAVE_XWIN_CONFIG_H -#include <xwin-config.h> -#endif -#include "win.h" - - -/* - * External symbols - */ - -#ifdef XWIN_MULTIWINDOW -extern DWORD g_dwCurrentThreadID; -#endif -extern HWND g_hDlgExit; - - -/* - * Local function prototypes - */ - -#ifdef XWIN_MULTIWINDOW -static wBOOL CALLBACK -winRedrawAllProcShadowGDI (HWND hwnd, LPARAM lParam); - -static wBOOL CALLBACK -winRedrawDamagedWindowShadowGDI (HWND hwnd, LPARAM lParam); -#endif - -static Bool -winAllocateFBShadowGDI (ScreenPtr pScreen); - -static void -winShadowUpdateGDI (ScreenPtr pScreen, - shadowBufPtr pBuf); - -static Bool -winCloseScreenShadowGDI (int nIndex, ScreenPtr pScreen); - -static Bool -winInitVisualsShadowGDI (ScreenPtr pScreen); - -static Bool -winAdjustVideoModeShadowGDI (ScreenPtr pScreen); - -static Bool -winBltExposedRegionsShadowGDI (ScreenPtr pScreen); - -static Bool -winActivateAppShadowGDI (ScreenPtr pScreen); - -static Bool -winRedrawScreenShadowGDI (ScreenPtr pScreen); - -static Bool -winRealizeInstalledPaletteShadowGDI (ScreenPtr pScreen); - -static Bool -winInstallColormapShadowGDI (ColormapPtr pColormap); - -static Bool -winStoreColorsShadowGDI (ColormapPtr pmap, - int ndef, - xColorItem *pdefs); - -static Bool -winCreateColormapShadowGDI (ColormapPtr pColormap); - -static Bool -winDestroyColormapShadowGDI (ColormapPtr pColormap); - - -/* - * Internal function to get the DIB format that is compatible with the screen - */ - -static -Bool -winQueryScreenDIBFormat (ScreenPtr pScreen, BITMAPINFOHEADER *pbmih) -{ - winScreenPriv(pScreen); - HBITMAP hbmp; -#ifdef WINDBG - 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; - } - -#ifdef WINDBG - /* Get a pointer to bitfields */ - pdw = (DWORD*) ((CARD8*)pbmih + sizeof (BITMAPINFOHEADER)); - - winDebug ("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) - { - winDebug ("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)); - -#ifdef WINDBG - winDebug ("%s - Masks: %08x %08x %08x\n", __FUNCTION__, - pdw[0], pdw[1], pdw[2]); - winDebug ("%s - Bitmap: %dx%d %d bpp %d planes\n", __FUNCTION__, - pbmih->biWidth, pbmih->biHeight, pbmih->biBitCount, pbmih->biPlanes); - winDebug ("%s - Compression: %d %s\n", __FUNCTION__, - pbmih->biCompression, - (pbmih->biCompression == BI_RGB?"(BI_RGB)": - (pbmih->biCompression == BI_RLE8?"(BI_RLE8)": - (pbmih->biCompression == BI_RLE4?"(BI_RLE4)": - (pbmih->biCompression == BI_BITFIELDS?"(BI_BITFIELDS)":"" - ))))); -#endif - - /* Handle BI_RGB case, which is returned by Wine */ - if (pbmih->biCompression == BI_RGB) - { - dwRedBits = 5; - dwGreenBits = 5; - dwBlueBits = 5; - - pScreenPriv->dwBitsPerRGB = 5; - - /* Set screen privates masks */ - pScreenPriv->dwRedMask = 0x7c00; - pScreenPriv->dwGreenMask = 0x03e0; - pScreenPriv->dwBlueMask = 0x001f; - } - else - { - /* 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; -} - - -#ifdef XWIN_MULTIWINDOW -/* - * Redraw all ---? - */ - -static wBOOL CALLBACK -winRedrawAllProcShadowGDI (HWND hwnd, LPARAM lParam) -{ - if (hwnd == (HWND)lParam) - return TRUE; - InvalidateRect (hwnd, NULL, FALSE); - UpdateWindow (hwnd); - return TRUE; -} - -static wBOOL CALLBACK -winRedrawDamagedWindowShadowGDI (HWND hwnd, LPARAM lParam) -{ - BoxPtr pDamage = (BoxPtr)lParam; - RECT rcClient, rcDamage, rcRedraw; - POINT topLeft, bottomRight; - - if (IsIconic (hwnd)) - return TRUE; /* Don't care minimized windows */ - - /* Convert the damaged area from Screen coords to Client coords */ - topLeft.x = pDamage->x1; topLeft.y = pDamage->y1; - bottomRight.x = pDamage->x2; bottomRight.y = pDamage->y2; - topLeft.x += GetSystemMetrics (SM_XVIRTUALSCREEN); - bottomRight.x += GetSystemMetrics (SM_XVIRTUALSCREEN); - topLeft.y += GetSystemMetrics (SM_YVIRTUALSCREEN); - bottomRight.y += GetSystemMetrics (SM_YVIRTUALSCREEN); - ScreenToClient (hwnd, &topLeft); - ScreenToClient (hwnd, &bottomRight); - SetRect (&rcDamage, topLeft.x, topLeft.y, bottomRight.x, bottomRight.y); - - GetClientRect (hwnd, &rcClient); - - if (IntersectRect (&rcRedraw, &rcClient, &rcDamage)) - { - InvalidateRect (hwnd, &rcRedraw, FALSE); - UpdateWindow (hwnd); - } - return TRUE; -} -#endif - - -/* - * Allocate a DIB for the shadow framebuffer GDI server - */ - -static 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; - - winDebug ("winAllocateFBShadowGDI - Creating DIB with width: %d height: %d " - "depth: %d\n", - (int) pbmih->biWidth, (int) -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) - { - winW32Error ("winAllocateFBShadowGDI - CreateDIBSection failed:"); - return FALSE; - } - else - { - winDebug ("winAllocateFBShadowGDI - Shadow buffer allocated\n"); - } - - /* Get information about the bitmap that was allocated */ - GetObject (pScreenPriv->hbmpShadow, - sizeof (dibsection), - &dibsection); - - /* Print information about bitmap allocated */ - winDebug ("winAllocateFBShadowGDI - Dibsection width: %d height: %d " - "depth: %d size image: %d\n", - (int) dibsection.dsBmih.biWidth, (int) dibsection.dsBmih.biHeight, - dibsection.dsBmih.biBitCount, - (int) dibsection.dsBmih.biSizeImage); - - /* Select the shadow bitmap into the shadow DC */ - SelectObject (pScreenPriv->hdcShadow, - pScreenPriv->hbmpShadow); - - winDebug ("winAllocateFBShadowGDI - Attempting a shadow blit\n"); - - /* 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) - { - winDebug ("winAllocateFBShadowGDI - Shadow blit success\n"); - } - else - { - winW32Error ("winAllocateFBShadowGDI - Shadow blit failure\n"); - /* ago: ignore this error. The blit fails with wine, but does not - * cause any problems later. */ - - fReturn = TRUE; - } - - /* Look for height weirdness */ - if (dibsection.dsBmih.biHeight < 0) - { - dibsection.dsBmih.biHeight = -dibsection.dsBmih.biHeight; - } - - /* Set screeninfo stride */ - pScreenInfo->dwStride = ((dibsection.dsBmih.biSizeImage - / dibsection.dsBmih.biHeight) - * 8) / pScreenInfo->dwBPP; - - winDebug ("winAllocateFBShadowGDI - Created shadow stride: %d\n", - (int) pScreenInfo->dwStride); - - /* 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; - } - -#ifdef XWIN_MULTIWINDOW - /* Redraw all windows */ - if (pScreenInfo->fMultiWindow) - EnumThreadWindows (g_dwCurrentThreadID, winRedrawAllProcShadowGDI, 0); -#endif - - return fReturn; -} - - -/* - * Blit the damaged regions of the shadow fb to the screen - */ - -static void -winShadowUpdateGDI (ScreenPtr pScreen, - shadowBufPtr pBuf) -{ - winScreenPriv(pScreen); - winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; - RegionPtr damage = shadowDamage(pBuf); - DWORD dwBox = REGION_NUM_RECTS (damage); - BoxPtr pBox = REGION_RECTS (damage); - int x, y, w, h; - HRGN hrgnTemp = NULL, hrgnCombined = NULL; -#ifdef XWIN_UPDATESTATS - static DWORD s_dwNonUnitRegions = 0; - static DWORD s_dwTotalUpdates = 0; - static DWORD s_dwTotalBoxes = 0; -#endif - BoxPtr pBoxExtents = REGION_EXTENTS (pScreen, damage); - - /* - * 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; - -#ifdef XWIN_UPDATESTATS - ++s_dwTotalUpdates; - s_dwTotalBoxes += dwBox; - - if (dwBox != 1) - { - ++s_dwNonUnitRegions; - winDebug ("winShadowUpdatGDI - dwBox: %d\n", dwBox); - } - - if ((s_dwTotalUpdates % 100) == 0) - { - winDebug ("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 /* XWIN_UPDATESTATS */ - - /* - * 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->fMultiWindow && - (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 if (!pScreenInfo->fMultiWindow) - { - /* 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); - } - -#ifdef XWIN_MULTIWINDOW - /* Redraw all multiwindow windows */ - if (pScreenInfo->fMultiWindow) - EnumThreadWindows (g_dwCurrentThreadID, - winRedrawDamagedWindowShadowGDI, - (LPARAM)pBoxExtents); -#endif -} - - -/* 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. - */ - -static Bool -winCloseScreenShadowGDI (int nIndex, ScreenPtr pScreen) -{ - winScreenPriv(pScreen); - winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; - Bool fReturn; - - winDebug ("winCloseScreenShadowGDI - Freeing screen resources\n"); - - /* Flag that the screen is closed */ - pScreenPriv->fClosed = TRUE; - pScreenPriv->fActive = FALSE; - - /* Call the wrapped CloseScreen procedure */ - WIN_UNWRAP(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; - } - -#if defined(XWIN_CLIPBOARD) || defined(XWIN_MULTIWINDOW) - /* Destroy the thread startup mutex */ - pthread_mutex_destroy (&pScreenPriv->pmServerStarted); -#endif - - /* 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. - */ - -static Bool -winInitVisualsShadowGDI (ScreenPtr pScreen) -{ - winScreenPriv(pScreen); - winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; - - /* Display debugging information */ - winDebug ("winInitVisualsShadowGDI - Masks %08x %08x %08x BPRGB %d d %d " - "bpp %d\n", - (unsigned int) pScreenPriv->dwRedMask, - (unsigned int) pScreenPriv->dwGreenMask, - (unsigned int) pScreenPriv->dwBlueMask, - (int) pScreenPriv->dwBitsPerRGB, - (int) pScreenInfo->dwDepth, - (int) 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; - } - -#ifdef XWIN_EMULATEPSEUDO - 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; - } - -#ifdef XWIN_EMULATEPSEUDO - 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; - } - - winDebug ("winInitVisualsShadowGDI - Returning\n"); - - return TRUE; -} - - -/* - * Adjust the proposed video mode - */ - -static 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 */ - winDebug ("winAdjustVideoModeShadowGDI - Using Windows display " - "depth of %d bits per pixel\n", (int) dwBPP); - - /* Use GDI's depth */ - pScreenInfo->dwBPP = dwBPP; - } - else if (dwBPP != pScreenInfo->dwBPP) - { - /* Warn user if GDI depth is different than -depth parameter */ - winDebug ("winAdjustVideoModeShadowGDI - Command line bpp: %d, "\ - "using bpp: %d\n", (int) pScreenInfo->dwBPP, (int) 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 - */ - -static 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); - -#ifdef XWIN_MULTIWINDOW - /* Redraw all windows */ - if (pScreenInfo->fMultiWindow) - EnumThreadWindows(g_dwCurrentThreadID, winRedrawAllProcShadowGDI, - (LPARAM)pScreenPriv->hwndScreen); -#endif - - return TRUE; -} - - -/* - * Do any engine-specific appliation-activation processing - */ - -static Bool -winActivateAppShadowGDI (ScreenPtr pScreen) -{ - winScreenPriv(pScreen); - winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo; - - /* - * 2004/04/12 - Harold - We perform the restoring or minimizing - * manually for ShadowGDI in fullscreen modes so that this engine - * will perform just like ShadowDD and ShadowDDNL in fullscreen mode; - * if we do not do this then our fullscreen window will appear in the - * z-order when it is deactivated and it can be uncovered by resizing - * or minimizing another window that is on top of it, which is not how - * the DirectDraw engines work. Therefore we keep this code here to - * make sure that all engines work the same in fullscreen mode. - */ - - /* - * 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); - } - - return TRUE; -} - - -/* - * Reblit the shadow framebuffer to the screen. - */ - -static 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); - -#ifdef XWIN_MULTIWINDOW - /* Redraw all windows */ - if (pScreenInfo->fMultiWindow) - EnumThreadWindows(g_dwCurrentThreadID, winRedrawAllProcShadowGDI, 0); -#endif - - return TRUE; -} - - - -/* - * Realize the currently installed colormap - */ - -static Bool -winRealizeInstalledPaletteShadowGDI (ScreenPtr pScreen) -{ - winScreenPriv(pScreen); - winPrivCmapPtr pCmapPriv = NULL; - - winDebug ("winRealizeInstalledPaletteShadowGDI\n"); - - /* Don't do anything if there is not a colormap */ - if (pScreenPriv->pcmapInstalled == NULL) - { - winDebug ("winRealizeInstalledPaletteShadowGDI - No colormap " - "installed\n"); - 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 - */ - -static 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; - -#ifdef XWIN_MULTIWINDOW - /* Redraw all windows */ - if (pScreenInfo->fMultiWindow) - EnumThreadWindows (g_dwCurrentThreadID, winRedrawAllProcShadowGDI, 0); -#endif - - return TRUE; -} - - -/* - * Store the specified colors in the specified colormap - */ - -static 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 - */ - -static 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", - (int) 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 - */ - -static 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) - { - winDebug ("winDestroyColormapShadowGDI - Destroying default " - "colormap\n"); - - /* - * 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 (*)(void))NoopDDA; - pScreenPriv->pwinCreatePrimarySurface - = (winCreatePrimarySurfaceProcPtr) (void (*)(void))NoopDDA; - pScreenPriv->pwinReleasePrimarySurface - = (winReleasePrimarySurfaceProcPtr) (void (*)(void))NoopDDA; -#ifdef XWIN_MULTIWINDOW - pScreenPriv->pwinFinishCreateWindowsWindow = - (winFinishCreateWindowsWindowProcPtr) (void (*)(void))NoopDDA; -#endif - - return TRUE; -} +/*
+ *Copyright (C) 2001-2004 Harold L Hunt II 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 HAROLD L HUNT II 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 Harold L Hunt II
+ *shall not be used in advertising or otherwise to promote the sale, use
+ *or other dealings in this Software without prior written authorization
+ *from Harold L Hunt II.
+ *
+ * Authors: Harold L Hunt II
+ */
+
+#ifdef HAVE_XWIN_CONFIG_H
+#include <xwin-config.h>
+#endif
+#include "win.h"
+
+
+/*
+ * External symbols
+ */
+
+#ifdef XWIN_MULTIWINDOW
+extern DWORD g_dwCurrentThreadID;
+#endif
+extern HWND g_hDlgExit;
+
+
+/*
+ * Local function prototypes
+ */
+
+#ifdef XWIN_MULTIWINDOW
+static wBOOL CALLBACK
+winRedrawAllProcShadowGDI (HWND hwnd, LPARAM lParam);
+
+static wBOOL CALLBACK
+winRedrawDamagedWindowShadowGDI (HWND hwnd, LPARAM lParam);
+#endif
+
+static Bool
+winAllocateFBShadowGDI (ScreenPtr pScreen);
+
+static void
+winShadowUpdateGDI (ScreenPtr pScreen,
+ shadowBufPtr pBuf);
+
+static Bool
+winCloseScreenShadowGDI (int nIndex, ScreenPtr pScreen);
+
+static Bool
+winInitVisualsShadowGDI (ScreenPtr pScreen);
+
+static Bool
+winAdjustVideoModeShadowGDI (ScreenPtr pScreen);
+
+static Bool
+winBltExposedRegionsShadowGDI (ScreenPtr pScreen);
+
+static Bool
+winActivateAppShadowGDI (ScreenPtr pScreen);
+
+static Bool
+winRedrawScreenShadowGDI (ScreenPtr pScreen);
+
+static Bool
+winRealizeInstalledPaletteShadowGDI (ScreenPtr pScreen);
+
+static Bool
+winInstallColormapShadowGDI (ColormapPtr pColormap);
+
+static Bool
+winStoreColorsShadowGDI (ColormapPtr pmap,
+ int ndef,
+ xColorItem *pdefs);
+
+static Bool
+winCreateColormapShadowGDI (ColormapPtr pColormap);
+
+static Bool
+winDestroyColormapShadowGDI (ColormapPtr pColormap);
+
+
+/*
+ * Internal function to get the DIB format that is compatible with the screen
+ */
+
+static
+Bool
+winQueryScreenDIBFormat (ScreenPtr pScreen, BITMAPINFOHEADER *pbmih)
+{
+ winScreenPriv(pScreen);
+ HBITMAP hbmp;
+#ifdef WINDBG
+ 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;
+ }
+
+#ifdef WINDBG
+ /* Get a pointer to bitfields */
+ pdw = (DWORD*) ((CARD8*)pbmih + sizeof (BITMAPINFOHEADER));
+
+ winDebug ("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)
+ {
+ winDebug ("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));
+
+#ifdef WINDBG
+ winDebug ("%s - Masks: %08x %08x %08x\n", __FUNCTION__,
+ pdw[0], pdw[1], pdw[2]);
+ winDebug ("%s - Bitmap: %dx%d %d bpp %d planes\n", __FUNCTION__,
+ pbmih->biWidth, pbmih->biHeight, pbmih->biBitCount, pbmih->biPlanes);
+ winDebug ("%s - Compression: %d %s\n", __FUNCTION__,
+ pbmih->biCompression,
+ (pbmih->biCompression == BI_RGB?"(BI_RGB)":
+ (pbmih->biCompression == BI_RLE8?"(BI_RLE8)":
+ (pbmih->biCompression == BI_RLE4?"(BI_RLE4)":
+ (pbmih->biCompression == BI_BITFIELDS?"(BI_BITFIELDS)":""
+ )))));
+#endif
+
+ /* Handle BI_RGB case, which is returned by Wine */
+ if (pbmih->biCompression == BI_RGB)
+ {
+ dwRedBits = 5;
+ dwGreenBits = 5;
+ dwBlueBits = 5;
+
+ pScreenPriv->dwBitsPerRGB = 5;
+
+ /* Set screen privates masks */
+ pScreenPriv->dwRedMask = 0x7c00;
+ pScreenPriv->dwGreenMask = 0x03e0;
+ pScreenPriv->dwBlueMask = 0x001f;
+ }
+ else
+ {
+ /* 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;
+}
+
+
+#ifdef XWIN_MULTIWINDOW
+/*
+ * Redraw all ---?
+ */
+
+static wBOOL CALLBACK
+winRedrawAllProcShadowGDI (HWND hwnd, LPARAM lParam)
+{
+ if (hwnd == (HWND)lParam)
+ return TRUE;
+ InvalidateRect (hwnd, NULL, FALSE);
+ UpdateWindow (hwnd);
+ return TRUE;
+}
+
+static wBOOL CALLBACK
+winRedrawDamagedWindowShadowGDI (HWND hwnd, LPARAM lParam)
+{
+ BoxPtr pDamage = (BoxPtr)lParam;
+ RECT rcClient, rcDamage, rcRedraw;
+ POINT topLeft, bottomRight;
+
+ if (IsIconic (hwnd))
+ return TRUE; /* Don't care minimized windows */
+
+ /* Convert the damaged area from Screen coords to Client coords */
+ topLeft.x = pDamage->x1; topLeft.y = pDamage->y1;
+ bottomRight.x = pDamage->x2; bottomRight.y = pDamage->y2;
+ topLeft.x += GetSystemMetrics (SM_XVIRTUALSCREEN);
+ bottomRight.x += GetSystemMetrics (SM_XVIRTUALSCREEN);
+ topLeft.y += GetSystemMetrics (SM_YVIRTUALSCREEN);
+ bottomRight.y += GetSystemMetrics (SM_YVIRTUALSCREEN);
+ ScreenToClient (hwnd, &topLeft);
+ ScreenToClient (hwnd, &bottomRight);
+ SetRect (&rcDamage, topLeft.x, topLeft.y, bottomRight.x, bottomRight.y);
+
+ GetClientRect (hwnd, &rcClient);
+
+ if (IntersectRect (&rcRedraw, &rcClient, &rcDamage))
+ {
+ InvalidateRect (hwnd, &rcRedraw, FALSE);
+ UpdateWindow (hwnd);
+ }
+ return TRUE;
+}
+#endif
+
+
+/*
+ * Allocate a DIB for the shadow framebuffer GDI server
+ */
+
+static 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;
+
+ winDebug ("winAllocateFBShadowGDI - Creating DIB with width: %d height: %d "
+ "depth: %d\n",
+ (int) pbmih->biWidth, (int) -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)
+ {
+ winW32Error ("winAllocateFBShadowGDI - CreateDIBSection failed:");
+ return FALSE;
+ }
+ else
+ {
+ winDebug ("winAllocateFBShadowGDI - Shadow buffer allocated\n");
+ }
+
+ /* Get information about the bitmap that was allocated */
+ GetObject (pScreenPriv->hbmpShadow,
+ sizeof (dibsection),
+ &dibsection);
+
+ /* Print information about bitmap allocated */
+ winDebug ("winAllocateFBShadowGDI - Dibsection width: %d height: %d "
+ "depth: %d size image: %d\n",
+ (int) dibsection.dsBmih.biWidth, (int) dibsection.dsBmih.biHeight,
+ dibsection.dsBmih.biBitCount,
+ (int) dibsection.dsBmih.biSizeImage);
+
+ /* Select the shadow bitmap into the shadow DC */
+ SelectObject (pScreenPriv->hdcShadow,
+ pScreenPriv->hbmpShadow);
+
+ winDebug ("winAllocateFBShadowGDI - Attempting a shadow blit\n");
+
+ /* 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)
+ {
+ winDebug ("winAllocateFBShadowGDI - Shadow blit success\n");
+ }
+ else
+ {
+ winW32Error ("winAllocateFBShadowGDI - Shadow blit failure\n");
+ /* ago: ignore this error. The blit fails with wine, but does not
+ * cause any problems later. */
+
+ fReturn = TRUE;
+ }
+
+ /* Look for height weirdness */
+ if (dibsection.dsBmih.biHeight < 0)
+ {
+ dibsection.dsBmih.biHeight = -dibsection.dsBmih.biHeight;
+ }
+
+ /* Set screeninfo stride */
+ pScreenInfo->dwStride = ((dibsection.dsBmih.biSizeImage
+ / dibsection.dsBmih.biHeight)
+ * 8) / pScreenInfo->dwBPP;
+
+ winDebug ("winAllocateFBShadowGDI - Created shadow stride: %d\n",
+ (int) pScreenInfo->dwStride);
+
+ /* 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;
+ }
+
+#ifdef XWIN_MULTIWINDOW
+ /* Redraw all windows */
+ if (pScreenInfo->fMultiWindow)
+ EnumThreadWindows (g_dwCurrentThreadID, winRedrawAllProcShadowGDI, 0);
+#endif
+
+ return fReturn;
+}
+
+
+/*
+ * Blit the damaged regions of the shadow fb to the screen
+ */
+
+static void
+winShadowUpdateGDI (ScreenPtr pScreen,
+ shadowBufPtr pBuf)
+{
+ winScreenPriv(pScreen);
+ winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
+ RegionPtr damage = shadowDamage(pBuf);
+ DWORD dwBox = RegionNumRects (damage);
+ BoxPtr pBox = RegionRects (damage);
+ int x, y, w, h;
+ HRGN hrgnTemp = NULL, hrgnCombined = NULL;
+#ifdef XWIN_UPDATESTATS
+ static DWORD s_dwNonUnitRegions = 0;
+ static DWORD s_dwTotalUpdates = 0;
+ static DWORD s_dwTotalBoxes = 0;
+#endif
+ BoxPtr pBoxExtents = RegionExtents(damage);
+
+ /*
+ * 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;
+
+#ifdef XWIN_UPDATESTATS
+ ++s_dwTotalUpdates;
+ s_dwTotalBoxes += dwBox;
+
+ if (dwBox != 1)
+ {
+ ++s_dwNonUnitRegions;
+ winDebug ("winShadowUpdatGDI - dwBox: %d\n", dwBox);
+ }
+
+ if ((s_dwTotalUpdates % 100) == 0)
+ {
+ winDebug ("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 /* XWIN_UPDATESTATS */
+
+ /*
+ * 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->fMultiWindow &&
+ (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 if (!pScreenInfo->fMultiWindow)
+ {
+ /* 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);
+ }
+
+#ifdef XWIN_MULTIWINDOW
+ /* Redraw all multiwindow windows */
+ if (pScreenInfo->fMultiWindow)
+ EnumThreadWindows (g_dwCurrentThreadID,
+ winRedrawDamagedWindowShadowGDI,
+ (LPARAM)pBoxExtents);
+#endif
+}
+
+
+/* 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.
+ */
+
+static Bool
+winCloseScreenShadowGDI (int nIndex, ScreenPtr pScreen)
+{
+ winScreenPriv(pScreen);
+ winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
+ Bool fReturn;
+
+ winDebug ("winCloseScreenShadowGDI - Freeing screen resources\n");
+
+ /* Flag that the screen is closed */
+ pScreenPriv->fClosed = TRUE;
+ pScreenPriv->fActive = FALSE;
+
+ /* Call the wrapped CloseScreen procedure */
+ WIN_UNWRAP(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;
+ }
+
+#if defined(XWIN_CLIPBOARD) || defined(XWIN_MULTIWINDOW)
+ /* Destroy the thread startup mutex */
+ pthread_mutex_destroy (&pScreenPriv->pmServerStarted);
+#endif
+
+ /* 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.
+ */
+
+static Bool
+winInitVisualsShadowGDI (ScreenPtr pScreen)
+{
+ winScreenPriv(pScreen);
+ winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
+
+ /* Display debugging information */
+ winDebug ("winInitVisualsShadowGDI - Masks %08x %08x %08x BPRGB %d d %d "
+ "bpp %d\n",
+ (unsigned int) pScreenPriv->dwRedMask,
+ (unsigned int) pScreenPriv->dwGreenMask,
+ (unsigned int) pScreenPriv->dwBlueMask,
+ (int) pScreenPriv->dwBitsPerRGB,
+ (int) pScreenInfo->dwDepth,
+ (int) 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;
+ }
+
+#ifdef XWIN_EMULATEPSEUDO
+ 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;
+ }
+
+#ifdef XWIN_EMULATEPSEUDO
+ 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;
+ }
+
+ winDebug ("winInitVisualsShadowGDI - Returning\n");
+
+ return TRUE;
+}
+
+
+/*
+ * Adjust the proposed video mode
+ */
+
+static 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 */
+ winDebug ("winAdjustVideoModeShadowGDI - Using Windows display "
+ "depth of %d bits per pixel\n", (int) dwBPP);
+
+ /* Use GDI's depth */
+ pScreenInfo->dwBPP = dwBPP;
+ }
+ else if (dwBPP != pScreenInfo->dwBPP)
+ {
+ /* Warn user if GDI depth is different than -depth parameter */
+ winDebug ("winAdjustVideoModeShadowGDI - Command line bpp: %d, "\
+ "using bpp: %d\n", (int) pScreenInfo->dwBPP, (int) 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
+ */
+
+static 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);
+
+#ifdef XWIN_MULTIWINDOW
+ /* Redraw all windows */
+ if (pScreenInfo->fMultiWindow)
+ EnumThreadWindows(g_dwCurrentThreadID, winRedrawAllProcShadowGDI,
+ (LPARAM)pScreenPriv->hwndScreen);
+#endif
+
+ return TRUE;
+}
+
+
+/*
+ * Do any engine-specific appliation-activation processing
+ */
+
+static Bool
+winActivateAppShadowGDI (ScreenPtr pScreen)
+{
+ winScreenPriv(pScreen);
+ winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
+
+ /*
+ * 2004/04/12 - Harold - We perform the restoring or minimizing
+ * manually for ShadowGDI in fullscreen modes so that this engine
+ * will perform just like ShadowDD and ShadowDDNL in fullscreen mode;
+ * if we do not do this then our fullscreen window will appear in the
+ * z-order when it is deactivated and it can be uncovered by resizing
+ * or minimizing another window that is on top of it, which is not how
+ * the DirectDraw engines work. Therefore we keep this code here to
+ * make sure that all engines work the same in fullscreen mode.
+ */
+
+ /*
+ * 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);
+ }
+
+ return TRUE;
+}
+
+
+/*
+ * Reblit the shadow framebuffer to the screen.
+ */
+
+static 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);
+
+#ifdef XWIN_MULTIWINDOW
+ /* Redraw all windows */
+ if (pScreenInfo->fMultiWindow)
+ EnumThreadWindows(g_dwCurrentThreadID, winRedrawAllProcShadowGDI, 0);
+#endif
+
+ return TRUE;
+}
+
+
+
+/*
+ * Realize the currently installed colormap
+ */
+
+static Bool
+winRealizeInstalledPaletteShadowGDI (ScreenPtr pScreen)
+{
+ winScreenPriv(pScreen);
+ winPrivCmapPtr pCmapPriv = NULL;
+
+ winDebug ("winRealizeInstalledPaletteShadowGDI\n");
+
+ /* Don't do anything if there is not a colormap */
+ if (pScreenPriv->pcmapInstalled == NULL)
+ {
+ winDebug ("winRealizeInstalledPaletteShadowGDI - No colormap "
+ "installed\n");
+ 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
+ */
+
+static 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;
+
+#ifdef XWIN_MULTIWINDOW
+ /* Redraw all windows */
+ if (pScreenInfo->fMultiWindow)
+ EnumThreadWindows (g_dwCurrentThreadID, winRedrawAllProcShadowGDI, 0);
+#endif
+
+ return TRUE;
+}
+
+
+/*
+ * Store the specified colors in the specified colormap
+ */
+
+static 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
+ */
+
+static 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",
+ (int) 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
+ */
+
+static 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)
+ {
+ winDebug ("winDestroyColormapShadowGDI - Destroying default "
+ "colormap\n");
+
+ /*
+ * 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 (*)(void))NoopDDA;
+ pScreenPriv->pwinCreatePrimarySurface
+ = (winCreatePrimarySurfaceProcPtr) (void (*)(void))NoopDDA;
+ pScreenPriv->pwinReleasePrimarySurface
+ = (winReleasePrimarySurfaceProcPtr) (void (*)(void))NoopDDA;
+#ifdef XWIN_MULTIWINDOW
+ pScreenPriv->pwinFinishCreateWindowsWindow =
+ (winFinishCreateWindowsWindowProcPtr) (void (*)(void))NoopDDA;
+#endif
+
+ return TRUE;
+}
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