diff options
author | marha <marha@users.sourceforge.net> | 2010-05-15 16:28:11 +0000 |
---|---|---|
committer | marha <marha@users.sourceforge.net> | 2010-05-15 16:28:11 +0000 |
commit | c38dead3ea7e177728d90cd815cf4eead0c9f534 (patch) | |
tree | b809dba1dc9013bb1e67a5ee388f2dd217dc0f88 /xorg-server/mi/miscrinit.c | |
parent | 6083a94d68878c9ad5f59b28bd07e4738e9fb7b4 (diff) | |
download | vcxsrv-c38dead3ea7e177728d90cd815cf4eead0c9f534.tar.gz vcxsrv-c38dead3ea7e177728d90cd815cf4eead0c9f534.tar.bz2 vcxsrv-c38dead3ea7e177728d90cd815cf4eead0c9f534.zip |
xserver git update 15/5/2010
Diffstat (limited to 'xorg-server/mi/miscrinit.c')
-rw-r--r-- | xorg-server/mi/miscrinit.c | 625 |
1 files changed, 312 insertions, 313 deletions
diff --git a/xorg-server/mi/miscrinit.c b/xorg-server/mi/miscrinit.c index 96113d65d..2af17672b 100644 --- a/xorg-server/mi/miscrinit.c +++ b/xorg-server/mi/miscrinit.c @@ -1,313 +1,312 @@ -/* - -Copyright 1990, 1998 The Open Group - -Permission to use, copy, modify, distribute, and sell this software and its -documentation for any purpose is hereby granted without fee, provided that -the above copyright notice appear in all copies and that both that -copyright notice and this permission notice appear in supporting -documentation. - -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 OPEN GROUP 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 Open Group 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 Open Group. - -*/ - -#ifdef HAVE_DIX_CONFIG_H -#include <dix-config.h> -#endif - -#include <X11/X.h> -#include "servermd.h" -#include "misc.h" -#include "mi.h" -#include "scrnintstr.h" -#include "pixmapstr.h" -#include "dix.h" -#include "miline.h" -#ifdef MITSHM -#include <X11/extensions/shm.h> -#include "shmint.h" -#endif - -/* We use this structure to propogate some information from miScreenInit to - * miCreateScreenResources. miScreenInit allocates the structure, fills it - * in, and puts it into pScreen->devPrivate. miCreateScreenResources - * extracts the info and frees the structure. We could've accomplished the - * same thing by adding fields to the screen structure, but they would have - * ended up being redundant, and would have exposed this mi implementation - * detail to the whole server. - */ - -typedef struct -{ - pointer pbits; /* pointer to framebuffer */ - int width; /* delta to add to a framebuffer addr to move one row down */ -} miScreenInitParmsRec, *miScreenInitParmsPtr; - - -/* this plugs into pScreen->ModifyPixmapHeader */ -Bool -miModifyPixmapHeader(PixmapPtr pPixmap, int width, int height, int depth, - int bitsPerPixel, int devKind, pointer pPixData) -{ - if (!pPixmap) - return FALSE; - - /* - * If all arguments are specified, reinitialize everything (including - * validated state). - */ - if ((width > 0) && (height > 0) && (depth > 0) && (bitsPerPixel > 0) && - (devKind > 0) && pPixData) { - pPixmap->drawable.depth = depth; - pPixmap->drawable.bitsPerPixel = bitsPerPixel; - pPixmap->drawable.id = 0; - pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER; - pPixmap->drawable.x = 0; - pPixmap->drawable.y = 0; - pPixmap->drawable.width = width; - pPixmap->drawable.height = height; - pPixmap->devKind = devKind; - pPixmap->refcnt = 1; - pPixmap->devPrivate.ptr = pPixData; - } else { - /* - * Only modify specified fields, keeping all others intact. - */ - - if (width > 0) - pPixmap->drawable.width = width; - - if (height > 0) - pPixmap->drawable.height = height; - - if (depth > 0) - pPixmap->drawable.depth = depth; - - if (bitsPerPixel > 0) - pPixmap->drawable.bitsPerPixel = bitsPerPixel; - else if ((bitsPerPixel < 0) && (depth > 0)) - pPixmap->drawable.bitsPerPixel = BitsPerPixel(depth); - - /* - * CAVEAT: Non-SI DDXen may use devKind and devPrivate fields for - * other purposes. - */ - if (devKind > 0) - pPixmap->devKind = devKind; - else if ((devKind < 0) && ((width > 0) || (depth > 0))) - pPixmap->devKind = PixmapBytePad(pPixmap->drawable.width, - pPixmap->drawable.depth); - - if (pPixData) - pPixmap->devPrivate.ptr = pPixData; - } - return TRUE; -} - -static Bool -miCloseScreen (int iScreen, ScreenPtr pScreen) -{ - return ((*pScreen->DestroyPixmap)((PixmapPtr)pScreen->devPrivate)); -} - -/* With the introduction of pixmap privates, the "screen pixmap" can no - * longer be created in miScreenInit, since all the modules that could - * possibly ask for pixmap private space have not been initialized at - * that time. pScreen->CreateScreenResources is called after all - * possible private-requesting modules have been inited; we create the - * screen pixmap here. - */ -Bool -miCreateScreenResources(ScreenPtr pScreen) -{ - miScreenInitParmsPtr pScrInitParms; - pointer value; - - pScrInitParms = (miScreenInitParmsPtr)pScreen->devPrivate; - - /* if width is non-zero, pScreen->devPrivate will be a pixmap - * else it will just take the value pbits - */ - if (pScrInitParms->width) - { - PixmapPtr pPixmap; - - /* create a pixmap with no data, then redirect it to point to - * the screen - */ - pPixmap = (*pScreen->CreatePixmap)(pScreen, 0, 0, pScreen->rootDepth, 0); - if (!pPixmap) - return FALSE; - - if (!(*pScreen->ModifyPixmapHeader)(pPixmap, pScreen->width, - pScreen->height, pScreen->rootDepth, - BitsPerPixel(pScreen->rootDepth), - PixmapBytePad(pScrInitParms->width, pScreen->rootDepth), - pScrInitParms->pbits)) - return FALSE; - value = (pointer)pPixmap; - } - else - { - value = pScrInitParms->pbits; - } - xfree(pScreen->devPrivate); /* freeing miScreenInitParmsRec */ - pScreen->devPrivate = value; /* pPixmap or pbits */ - return TRUE; -} - -Bool -miScreenDevPrivateInit(ScreenPtr pScreen, int width, pointer pbits) -{ - miScreenInitParmsPtr pScrInitParms; - - /* Stash pbits and width in a short-lived miScreenInitParmsRec attached - * to the screen, until CreateScreenResources can put them in the - * screen pixmap. - */ - pScrInitParms = xalloc(sizeof(miScreenInitParmsRec)); - if (!pScrInitParms) - return FALSE; - pScrInitParms->pbits = pbits; - pScrInitParms->width = width; - pScreen->devPrivate = (pointer)pScrInitParms; - return TRUE; -} - -static PixmapPtr -miGetScreenPixmap(ScreenPtr pScreen) -{ - return (PixmapPtr)(pScreen->devPrivate); -} - -static void -miSetScreenPixmap(PixmapPtr pPix) -{ - if (pPix) - pPix->drawable.pScreen->devPrivate = (pointer)pPix; -} - -Bool -miScreenInit( - ScreenPtr pScreen, - pointer pbits, /* pointer to screen bits */ - int xsize, int ysize, /* in pixels */ - int dpix, int dpiy, /* dots per inch */ - int width, /* pixel width of frame buffer */ - int rootDepth, /* depth of root window */ - int numDepths, /* number of depths supported */ - DepthRec *depths, /* supported depths */ - VisualID rootVisual, /* root visual */ - int numVisuals, /* number of visuals supported */ - VisualRec *visuals /* supported visuals */ - ) -{ - pScreen->width = xsize; - pScreen->height = ysize; - pScreen->mmWidth = (xsize * 254 + dpix * 5) / (dpix * 10); - pScreen->mmHeight = (ysize * 254 + dpiy * 5) / (dpiy * 10); - pScreen->numDepths = numDepths; - pScreen->rootDepth = rootDepth; - pScreen->allowedDepths = depths; - pScreen->rootVisual = rootVisual; - /* defColormap */ - pScreen->minInstalledCmaps = 1; - pScreen->maxInstalledCmaps = 1; - pScreen->backingStoreSupport = NotUseful; - pScreen->saveUnderSupport = NotUseful; - /* whitePixel, blackPixel */ - pScreen->ModifyPixmapHeader = miModifyPixmapHeader; - pScreen->CreateScreenResources = miCreateScreenResources; - pScreen->GetScreenPixmap = miGetScreenPixmap; - pScreen->SetScreenPixmap = miSetScreenPixmap; - pScreen->numVisuals = numVisuals; - pScreen->visuals = visuals; - if (width) - { -#ifdef MITSHM - ShmRegisterFbFuncs(pScreen); -#endif - pScreen->CloseScreen = miCloseScreen; - } - /* else CloseScreen */ - /* QueryBestSize, SaveScreen, GetImage, GetSpans */ - pScreen->PointerNonInterestBox = (PointerNonInterestBoxProcPtr) 0; - pScreen->SourceValidate = (SourceValidateProcPtr) 0; - /* CreateWindow, DestroyWindow, PositionWindow, ChangeWindowAttributes */ - /* RealizeWindow, UnrealizeWindow */ - pScreen->ValidateTree = miValidateTree; - pScreen->PostValidateTree = (PostValidateTreeProcPtr) 0; - pScreen->WindowExposures = miWindowExposures; - /* CopyWindow */ - pScreen->ClearToBackground = miClearToBackground; - pScreen->ClipNotify = (ClipNotifyProcPtr) 0; - pScreen->RestackWindow = (RestackWindowProcPtr) 0; - /* CreatePixmap, DestroyPixmap */ - /* RealizeFont, UnrealizeFont */ - /* CreateGC */ - /* CreateColormap, DestroyColormap, InstallColormap, UninstallColormap */ - /* ListInstalledColormaps, StoreColors, ResolveColor */ - /* BitmapToRegion */ - pScreen->SendGraphicsExpose = miSendGraphicsExpose; - pScreen->BlockHandler = (ScreenBlockHandlerProcPtr)NoopDDA; - pScreen->WakeupHandler = (ScreenWakeupHandlerProcPtr)NoopDDA; - pScreen->blockData = (pointer)0; - pScreen->wakeupData = (pointer)0; - pScreen->MarkWindow = miMarkWindow; - pScreen->MarkOverlappedWindows = miMarkOverlappedWindows; - pScreen->ChangeSaveUnder = NULL; - pScreen->PostChangeSaveUnder = NULL; - pScreen->MoveWindow = miMoveWindow; - pScreen->ResizeWindow = miSlideAndSizeWindow; - pScreen->GetLayerWindow = miGetLayerWindow; - pScreen->HandleExposures = miHandleValidateExposures; - pScreen->ReparentWindow = (ReparentWindowProcPtr) 0; - pScreen->ChangeBorderWidth = miChangeBorderWidth; - pScreen->SetShape = miSetShape; - pScreen->MarkUnrealizedWindow = miMarkUnrealizedWindow; - - pScreen->SaveDoomedAreas = 0; - pScreen->RestoreAreas = 0; - pScreen->ExposeCopy = 0; - pScreen->TranslateBackingStore = 0; - pScreen->ClearBackingStore = 0; - pScreen->DrawGuarantee = 0; - - miSetZeroLineBias(pScreen, DEFAULTZEROLINEBIAS); - - return miScreenDevPrivateInit(pScreen, width, pbits); -} - -static int privateKeyIndex; -static DevPrivateKey privateKey = &privateKeyIndex; - -DevPrivateKey -miAllocateGCPrivateIndex(void) -{ - return privateKey; -} - -static int miZeroLineScreenKeyIndex; -DevPrivateKey miZeroLineScreenKey = &miZeroLineScreenKeyIndex; - -void -miSetZeroLineBias(ScreenPtr pScreen, unsigned int bias) -{ - dixSetPrivate(&pScreen->devPrivates, miZeroLineScreenKey, - (unsigned long *)(unsigned long)bias); -} +/*
+
+Copyright 1990, 1998 The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+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 OPEN GROUP 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 Open Group 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 Open Group.
+
+*/
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <X11/X.h>
+#include "servermd.h"
+#include "misc.h"
+#include "mi.h"
+#include "scrnintstr.h"
+#include "pixmapstr.h"
+#include "dix.h"
+#include "miline.h"
+#ifdef MITSHM
+#include <X11/extensions/shm.h>
+#include "shmint.h"
+#endif
+
+/* We use this structure to propogate some information from miScreenInit to
+ * miCreateScreenResources. miScreenInit allocates the structure, fills it
+ * in, and puts it into pScreen->devPrivate. miCreateScreenResources
+ * extracts the info and frees the structure. We could've accomplished the
+ * same thing by adding fields to the screen structure, but they would have
+ * ended up being redundant, and would have exposed this mi implementation
+ * detail to the whole server.
+ */
+
+typedef struct
+{
+ pointer pbits; /* pointer to framebuffer */
+ int width; /* delta to add to a framebuffer addr to move one row down */
+} miScreenInitParmsRec, *miScreenInitParmsPtr;
+
+
+/* this plugs into pScreen->ModifyPixmapHeader */
+Bool
+miModifyPixmapHeader(PixmapPtr pPixmap, int width, int height, int depth,
+ int bitsPerPixel, int devKind, pointer pPixData)
+{
+ if (!pPixmap)
+ return FALSE;
+
+ /*
+ * If all arguments are specified, reinitialize everything (including
+ * validated state).
+ */
+ if ((width > 0) && (height > 0) && (depth > 0) && (bitsPerPixel > 0) &&
+ (devKind > 0) && pPixData) {
+ pPixmap->drawable.depth = depth;
+ pPixmap->drawable.bitsPerPixel = bitsPerPixel;
+ pPixmap->drawable.id = 0;
+ pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
+ pPixmap->drawable.x = 0;
+ pPixmap->drawable.y = 0;
+ pPixmap->drawable.width = width;
+ pPixmap->drawable.height = height;
+ pPixmap->devKind = devKind;
+ pPixmap->refcnt = 1;
+ pPixmap->devPrivate.ptr = pPixData;
+ } else {
+ /*
+ * Only modify specified fields, keeping all others intact.
+ */
+
+ if (width > 0)
+ pPixmap->drawable.width = width;
+
+ if (height > 0)
+ pPixmap->drawable.height = height;
+
+ if (depth > 0)
+ pPixmap->drawable.depth = depth;
+
+ if (bitsPerPixel > 0)
+ pPixmap->drawable.bitsPerPixel = bitsPerPixel;
+ else if ((bitsPerPixel < 0) && (depth > 0))
+ pPixmap->drawable.bitsPerPixel = BitsPerPixel(depth);
+
+ /*
+ * CAVEAT: Non-SI DDXen may use devKind and devPrivate fields for
+ * other purposes.
+ */
+ if (devKind > 0)
+ pPixmap->devKind = devKind;
+ else if ((devKind < 0) && ((width > 0) || (depth > 0)))
+ pPixmap->devKind = PixmapBytePad(pPixmap->drawable.width,
+ pPixmap->drawable.depth);
+
+ if (pPixData)
+ pPixmap->devPrivate.ptr = pPixData;
+ }
+ return TRUE;
+}
+
+static Bool
+miCloseScreen (int iScreen, ScreenPtr pScreen)
+{
+ return ((*pScreen->DestroyPixmap)((PixmapPtr)pScreen->devPrivate));
+}
+
+/* With the introduction of pixmap privates, the "screen pixmap" can no
+ * longer be created in miScreenInit, since all the modules that could
+ * possibly ask for pixmap private space have not been initialized at
+ * that time. pScreen->CreateScreenResources is called after all
+ * possible private-requesting modules have been inited; we create the
+ * screen pixmap here.
+ */
+Bool
+miCreateScreenResources(ScreenPtr pScreen)
+{
+ miScreenInitParmsPtr pScrInitParms;
+ pointer value;
+
+ pScrInitParms = (miScreenInitParmsPtr)pScreen->devPrivate;
+
+ /* if width is non-zero, pScreen->devPrivate will be a pixmap
+ * else it will just take the value pbits
+ */
+ if (pScrInitParms->width)
+ {
+ PixmapPtr pPixmap;
+
+ /* create a pixmap with no data, then redirect it to point to
+ * the screen
+ */
+ pPixmap = (*pScreen->CreatePixmap)(pScreen, 0, 0, pScreen->rootDepth, 0);
+ if (!pPixmap)
+ return FALSE;
+
+ if (!(*pScreen->ModifyPixmapHeader)(pPixmap, pScreen->width,
+ pScreen->height, pScreen->rootDepth,
+ BitsPerPixel(pScreen->rootDepth),
+ PixmapBytePad(pScrInitParms->width, pScreen->rootDepth),
+ pScrInitParms->pbits))
+ return FALSE;
+ value = (pointer)pPixmap;
+ }
+ else
+ {
+ value = pScrInitParms->pbits;
+ }
+ free(pScreen->devPrivate); /* freeing miScreenInitParmsRec */
+ pScreen->devPrivate = value; /* pPixmap or pbits */
+ return TRUE;
+}
+
+Bool
+miScreenDevPrivateInit(ScreenPtr pScreen, int width, pointer pbits)
+{
+ miScreenInitParmsPtr pScrInitParms;
+
+ /* Stash pbits and width in a short-lived miScreenInitParmsRec attached
+ * to the screen, until CreateScreenResources can put them in the
+ * screen pixmap.
+ */
+ pScrInitParms = malloc(sizeof(miScreenInitParmsRec));
+ if (!pScrInitParms)
+ return FALSE;
+ pScrInitParms->pbits = pbits;
+ pScrInitParms->width = width;
+ pScreen->devPrivate = (pointer)pScrInitParms;
+ return TRUE;
+}
+
+static PixmapPtr
+miGetScreenPixmap(ScreenPtr pScreen)
+{
+ return (PixmapPtr)(pScreen->devPrivate);
+}
+
+static void
+miSetScreenPixmap(PixmapPtr pPix)
+{
+ if (pPix)
+ pPix->drawable.pScreen->devPrivate = (pointer)pPix;
+}
+
+Bool
+miScreenInit(
+ ScreenPtr pScreen,
+ pointer pbits, /* pointer to screen bits */
+ int xsize, int ysize, /* in pixels */
+ int dpix, int dpiy, /* dots per inch */
+ int width, /* pixel width of frame buffer */
+ int rootDepth, /* depth of root window */
+ int numDepths, /* number of depths supported */
+ DepthRec *depths, /* supported depths */
+ VisualID rootVisual, /* root visual */
+ int numVisuals, /* number of visuals supported */
+ VisualRec *visuals /* supported visuals */
+ )
+{
+ pScreen->width = xsize;
+ pScreen->height = ysize;
+ pScreen->mmWidth = (xsize * 254 + dpix * 5) / (dpix * 10);
+ pScreen->mmHeight = (ysize * 254 + dpiy * 5) / (dpiy * 10);
+ pScreen->numDepths = numDepths;
+ pScreen->rootDepth = rootDepth;
+ pScreen->allowedDepths = depths;
+ pScreen->rootVisual = rootVisual;
+ /* defColormap */
+ pScreen->minInstalledCmaps = 1;
+ pScreen->maxInstalledCmaps = 1;
+ pScreen->backingStoreSupport = NotUseful;
+ pScreen->saveUnderSupport = NotUseful;
+ /* whitePixel, blackPixel */
+ pScreen->ModifyPixmapHeader = miModifyPixmapHeader;
+ pScreen->CreateScreenResources = miCreateScreenResources;
+ pScreen->GetScreenPixmap = miGetScreenPixmap;
+ pScreen->SetScreenPixmap = miSetScreenPixmap;
+ pScreen->numVisuals = numVisuals;
+ pScreen->visuals = visuals;
+ if (width)
+ {
+#ifdef MITSHM
+ ShmRegisterFbFuncs(pScreen);
+#endif
+ pScreen->CloseScreen = miCloseScreen;
+ }
+ /* else CloseScreen */
+ /* QueryBestSize, SaveScreen, GetImage, GetSpans */
+ pScreen->SourceValidate = (SourceValidateProcPtr) 0;
+ /* CreateWindow, DestroyWindow, PositionWindow, ChangeWindowAttributes */
+ /* RealizeWindow, UnrealizeWindow */
+ pScreen->ValidateTree = miValidateTree;
+ pScreen->PostValidateTree = (PostValidateTreeProcPtr) 0;
+ pScreen->WindowExposures = miWindowExposures;
+ /* CopyWindow */
+ pScreen->ClearToBackground = miClearToBackground;
+ pScreen->ClipNotify = (ClipNotifyProcPtr) 0;
+ pScreen->RestackWindow = (RestackWindowProcPtr) 0;
+ /* CreatePixmap, DestroyPixmap */
+ /* RealizeFont, UnrealizeFont */
+ /* CreateGC */
+ /* CreateColormap, DestroyColormap, InstallColormap, UninstallColormap */
+ /* ListInstalledColormaps, StoreColors, ResolveColor */
+ /* BitmapToRegion */
+ pScreen->SendGraphicsExpose = miSendGraphicsExpose;
+ pScreen->BlockHandler = (ScreenBlockHandlerProcPtr)NoopDDA;
+ pScreen->WakeupHandler = (ScreenWakeupHandlerProcPtr)NoopDDA;
+ pScreen->blockData = (pointer)0;
+ pScreen->wakeupData = (pointer)0;
+ pScreen->MarkWindow = miMarkWindow;
+ pScreen->MarkOverlappedWindows = miMarkOverlappedWindows;
+ pScreen->ChangeSaveUnder = NULL;
+ pScreen->PostChangeSaveUnder = NULL;
+ pScreen->MoveWindow = miMoveWindow;
+ pScreen->ResizeWindow = miSlideAndSizeWindow;
+ pScreen->GetLayerWindow = miGetLayerWindow;
+ pScreen->HandleExposures = miHandleValidateExposures;
+ pScreen->ReparentWindow = (ReparentWindowProcPtr) 0;
+ pScreen->ChangeBorderWidth = miChangeBorderWidth;
+ pScreen->SetShape = miSetShape;
+ pScreen->MarkUnrealizedWindow = miMarkUnrealizedWindow;
+
+ pScreen->SaveDoomedAreas = 0;
+ pScreen->RestoreAreas = 0;
+ pScreen->ExposeCopy = 0;
+ pScreen->TranslateBackingStore = 0;
+ pScreen->ClearBackingStore = 0;
+ pScreen->DrawGuarantee = 0;
+
+ miSetZeroLineBias(pScreen, DEFAULTZEROLINEBIAS);
+
+ return miScreenDevPrivateInit(pScreen, width, pbits);
+}
+
+static int privateKeyIndex;
+static DevPrivateKey privateKey = &privateKeyIndex;
+
+DevPrivateKey
+miAllocateGCPrivateIndex(void)
+{
+ return privateKey;
+}
+
+static int miZeroLineScreenKeyIndex;
+DevPrivateKey miZeroLineScreenKey = &miZeroLineScreenKeyIndex;
+
+void
+miSetZeroLineBias(ScreenPtr pScreen, unsigned int bias)
+{
+ dixSetPrivate(&pScreen->devPrivates, miZeroLineScreenKey,
+ (unsigned long *)(unsigned long)bias);
+}
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