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Diffstat (limited to 'hw/xwin/winshadgdi.c')
| -rw-r--r-- | hw/xwin/winshadgdi.c | 1158 |
1 files changed, 1158 insertions, 0 deletions
diff --git a/hw/xwin/winshadgdi.c b/hw/xwin/winshadgdi.c new file mode 100644 index 000000000..d2f72f20d --- /dev/null +++ b/hw/xwin/winshadgdi.c @@ -0,0 +1,1158 @@ +/* + *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 1.22 2003/02/12 15:01:38 alanh 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(strcmp (WINDOW_CLASS_X, strClassName) == 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; + } + + /* 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); + + /* 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; +} |