Composite's automatic redirection is a more general mechanism than the ad-hoc BS machinery, so it's much prettier to implement the one in terms of the other. Composite now wraps ChangeWindowAttributes and activates automatic redirection for windows with backing store requested. The old backing store infrastructure is completely gutted: ABI-visible structures retain the function pointers, but they never get called, and all the open-coded conditionals throughout the DIX layer to implement BS are gone. Note that this is still not a strictly complete implementation of backing store, since Composite will throw the bits away on unmap and therefore WhenMapped and Always hints are equivalent.
200 lines
6.7 KiB
C
200 lines
6.7 KiB
C
/***********************************************************
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Copyright 1987, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the name of Digital not be
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used in advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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SOFTWARE.
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******************************************************************/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <string.h>
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#include <X11/X.h>
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#include <X11/Xproto.h> /* for xColorItem */
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#include <X11/Xmd.h>
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#include "scrnintstr.h"
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#include "pixmapstr.h"
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#include "windowstr.h"
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#include "resource.h"
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#include "colormap.h"
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#include "mfb.h"
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#include "mistruct.h"
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#include "dix.h"
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#include "mi.h"
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#include "mibstore.h"
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#include "migc.h"
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#include "servermd.h"
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#ifdef PIXMAP_PER_WINDOW
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int frameWindowPrivateIndex;
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int frameGetWindowPrivateIndex(void) { return frameWindowPrivateIndex; }
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#endif
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int mfbWindowPrivateIndex;
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int mfbGetWindowPrivateIndex(void) { return mfbWindowPrivateIndex; }
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int mfbGCPrivateIndex;
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int mfbGetGCPrivateIndex(void) { return mfbGCPrivateIndex; }
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static unsigned long mfbGeneration = 0;
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static VisualRec visual = {
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/* vid class bpRGB cmpE nplan rMask gMask bMask oRed oGreen oBlue */
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0, StaticGray, 1, 2, 1, 0, 0, 0, 0, 0, 0
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};
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static VisualID VID;
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static DepthRec depth = {
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/* depth numVid vids */
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1, 1, &VID
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};
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Bool
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mfbAllocatePrivates(pScreen, pWinIndex, pGCIndex)
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ScreenPtr pScreen;
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int *pWinIndex, *pGCIndex;
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{
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if (mfbGeneration != serverGeneration)
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{
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#ifdef PIXMAP_PER_WINDOW
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frameWindowPrivateIndex = AllocateWindowPrivateIndex();
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#endif
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mfbWindowPrivateIndex = AllocateWindowPrivateIndex();
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mfbGCPrivateIndex = miAllocateGCPrivateIndex();
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visual.vid = FakeClientID(0);
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VID = visual.vid;
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mfbGeneration = serverGeneration;
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}
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if (pWinIndex)
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*pWinIndex = mfbWindowPrivateIndex;
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if (pGCIndex)
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*pGCIndex = mfbGCPrivateIndex;
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pScreen->GetWindowPixmap = mfbGetWindowPixmap;
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pScreen->SetWindowPixmap = mfbSetWindowPixmap;
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return (AllocateWindowPrivate(pScreen, mfbWindowPrivateIndex,
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sizeof(mfbPrivWin)) &&
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AllocateGCPrivate(pScreen, mfbGCPrivateIndex, sizeof(mfbPrivGC)));
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}
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/* dts * (inch/dot) * (25.4 mm / inch) = mm */
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Bool
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mfbScreenInit(pScreen, pbits, xsize, ysize, dpix, dpiy, width)
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register ScreenPtr pScreen;
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pointer pbits; /* pointer to screen bitmap */
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int xsize, ysize; /* in pixels */
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int dpix, dpiy; /* dots per inch */
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int width; /* pixel width of frame buffer */
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{
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if (!mfbAllocatePrivates(pScreen, (int *)NULL, (int *)NULL))
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return FALSE;
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pScreen->defColormap = (Colormap) FakeClientID(0);
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/* whitePixel, blackPixel */
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pScreen->QueryBestSize = mfbQueryBestSize;
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/* SaveScreen */
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pScreen->GetImage = mfbGetImage;
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pScreen->GetSpans = mfbGetSpans;
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pScreen->CreateWindow = mfbCreateWindow;
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pScreen->DestroyWindow = mfbDestroyWindow;
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pScreen->PositionWindow = mfbPositionWindow;
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pScreen->ChangeWindowAttributes = mfbChangeWindowAttributes;
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pScreen->RealizeWindow = mfbMapWindow;
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pScreen->UnrealizeWindow = mfbUnmapWindow;
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pScreen->PaintWindowBackground = mfbPaintWindow;
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pScreen->PaintWindowBorder = mfbPaintWindow;
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pScreen->CopyWindow = mfbCopyWindow;
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pScreen->CreatePixmap = mfbCreatePixmap;
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pScreen->DestroyPixmap = mfbDestroyPixmap;
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pScreen->RealizeFont = mfbRealizeFont;
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pScreen->UnrealizeFont = mfbUnrealizeFont;
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pScreen->CreateGC = mfbCreateGC;
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pScreen->CreateColormap = mfbCreateColormap;
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pScreen->DestroyColormap = mfbDestroyColormap;
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pScreen->InstallColormap = mfbInstallColormap;
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pScreen->UninstallColormap = mfbUninstallColormap;
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pScreen->ListInstalledColormaps = mfbListInstalledColormaps;
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pScreen->StoreColors = (StoreColorsProcPtr)NoopDDA;
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pScreen->ResolveColor = mfbResolveColor;
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pScreen->BitmapToRegion = mfbPixmapToRegion;
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if (!miScreenInit(pScreen, pbits, xsize, ysize, dpix, dpiy, width,
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1, 1, &depth, VID, 1, &visual))
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return FALSE;
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return TRUE;
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}
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PixmapPtr
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mfbGetWindowPixmap(pWin)
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WindowPtr pWin;
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{
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#ifdef PIXMAP_PER_WINDOW
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return (PixmapPtr)(pWin->devPrivates[frameWindowPrivateIndex].ptr);
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#else
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ScreenPtr pScreen = pWin->drawable.pScreen;
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return (* pScreen->GetScreenPixmap)(pScreen);
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#endif
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}
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void
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mfbSetWindowPixmap(pWin, pPix)
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WindowPtr pWin;
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PixmapPtr pPix;
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{
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#ifdef PIXMAP_PER_WINDOW
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pWin->devPrivates[frameWindowPrivateIndex].ptr = (pointer)pPix;
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#else
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(* pWin->drawable.pScreen->SetScreenPixmap)(pPix);
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#endif
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}
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void mfbFillInScreen(ScreenPtr pScreen)
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{
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pScreen->ChangeWindowAttributes = mfbChangeWindowAttributes;
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pScreen->RealizeWindow = mfbMapWindow;
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pScreen->UnrealizeWindow = mfbUnmapWindow;
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pScreen->DestroyPixmap = mfbDestroyPixmap;
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pScreen->RealizeFont = mfbRealizeFont;
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pScreen->UnrealizeFont = mfbUnrealizeFont;
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pScreen->BitmapToRegion = mfbPixmapToRegion;
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}
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