+++ /dev/null
-/* $XConsortium: miscrinit.c /main/13 1996/08/12 21:51:16 dpw $ */
-/* $XFree86: xc/programs/Xserver/mi/miscrinit.c,v 3.2 1996/12/23 07:09:46 dawes Exp $ */
-/*
-
-Copyright (c) 1990 X Consortium
-
-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 X CONSORTIUM 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 X Consortium 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 X Consortium.
-
-*/
-
-#include "X.h"
-#include "servermd.h"
-#include "misc.h"
-#include "mi.h"
-#include "scrnintstr.h"
-#include "pixmapstr.h"
-#include "mibstore.h"
-#include "dix.h"
-#include "miline.h"
-
-/* 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(pPixmap, width, height, depth, bitsPerPixel, devKind,
- pPixData)
- PixmapPtr pPixmap;
- int width;
- int height;
- int depth;
- int bitsPerPixel;
- int devKind;
- pointer pPixData;
-{
- if (!pPixmap)
- return FALSE;
- 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;
- return TRUE;
-}
-
-
-/*ARGSUSED*/
-Bool
-miCloseScreen (index, pScreen)
- int index;
- 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(pScreen)
- 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);
- if (!pPixmap)
- return FALSE;
-
- if (!(*pScreen->ModifyPixmapHeader)(pPixmap, pScreen->width,
- pScreen->height, pScreen->rootDepth, 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(pScreen, width, pbits)
- register 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 = (miScreenInitParmsPtr)xalloc(sizeof(miScreenInitParmsRec));
- if (!pScrInitParms)
- return FALSE;
- pScrInitParms->pbits = pbits;
- pScrInitParms->width = width;
- pScreen->devPrivate = (pointer)pScrInitParms;
- return TRUE;
-}
-
-/*
- * If you pass in bsfuncs, then you must preinitialize the missing
- * screen procs before calling miScreenInit, so that the backing store
- * code can correctly wrap them.
- */
-
-Bool
-miScreenInit(pScreen, pbits, xsize, ysize, dpix, dpiy, width,
- rootDepth, numDepths, depths, rootVisual, numVisuals, visuals,
- bsfuncs)
- register ScreenPtr pScreen;
- pointer pbits; /* pointer to screen bits */
- int xsize, ysize; /* in pixels */
- int dpix, 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 */
- miBSFuncPtr bsfuncs; /* backing store functions */
-{
- 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 = Always;
- pScreen->saveUnderSupport = NotUseful;
- /* whitePixel, blackPixel */
- pScreen->ModifyPixmapHeader = miModifyPixmapHeader;
- pScreen->CreateScreenResources = miCreateScreenResources;
- pScreen->numVisuals = numVisuals;
- pScreen->visuals = visuals;
- if (width)
- {
-#ifdef MITSHM
- ShmRegisterFbFuncs(pScreen);
-#endif
- pScreen->CloseScreen = miCloseScreen;
- }
- /* else CloseScreen */
- /* QueryBestSize, SaveScreen, GetImage, GetSpans */
- pScreen->PointerNonInterestBox = (void (*)()) 0;
- pScreen->SourceValidate = (void (*)()) 0;
- /* CreateWindow, DestroyWindow, PositionWindow, ChangeWindowAttributes */
- /* RealizeWindow, UnrealizeWindow */
- pScreen->ValidateTree = miValidateTree;
- pScreen->PostValidateTree = (void (*)()) 0;
- pScreen->WindowExposures = miWindowExposures;
- /* PaintWindowBackground, PaintWindowBorder, CopyWindow */
- pScreen->ClearToBackground = miClearToBackground;
- pScreen->ClipNotify = (void (*)()) 0;
- /* CreatePixmap, DestroyPixmap */
- /* RealizeFont, UnrealizeFont */
- /* CreateGC */
- /* CreateColormap, DestroyColormap, InstallColormap, UninstallColormap */
- /* ListInstalledColormaps, StoreColors, ResolveColor */
- pScreen->RegionCreate = miRegionCreate;
- pScreen->RegionInit = miRegionInit;
- pScreen->RegionCopy = miRegionCopy;
- pScreen->RegionDestroy = miRegionDestroy;
- pScreen->RegionUninit = miRegionUninit;
- pScreen->Intersect = miIntersect;
- pScreen->Union = miUnion;
- pScreen->Subtract = miSubtract;
- pScreen->Inverse = miInverse;
- pScreen->RegionReset = miRegionReset;
- pScreen->TranslateRegion = miTranslateRegion;
- pScreen->RectIn = miRectIn;
- pScreen->PointInRegion = miPointInRegion;
- pScreen->RegionNotEmpty = miRegionNotEmpty;
- pScreen->RegionEmpty = miRegionEmpty;
- pScreen->RegionExtents = miRegionExtents;
- pScreen->RegionAppend = miRegionAppend;
- pScreen->RegionValidate = miRegionValidate;
- /* BitmapToRegion */
- pScreen->RectsToRegion = miRectsToRegion;
- pScreen->SendGraphicsExpose = miSendGraphicsExpose;
- pScreen->BlockHandler = (void (*)())NoopDDA;
- pScreen->WakeupHandler = (void (*)())NoopDDA;
- pScreen->blockData = (pointer)0;
- pScreen->wakeupData = (pointer)0;
- if (bsfuncs)
- miInitializeBackingStore (pScreen, bsfuncs);
- pScreen->MarkWindow = miMarkWindow;
- pScreen->MarkOverlappedWindows = miMarkOverlappedWindows;
- pScreen->ChangeSaveUnder = miChangeSaveUnder;
- pScreen->PostChangeSaveUnder = miPostChangeSaveUnder;
- pScreen->MoveWindow = miMoveWindow;
- pScreen->ResizeWindow = miSlideAndSizeWindow;
- pScreen->GetLayerWindow = miGetLayerWindow;
- pScreen->HandleExposures = miHandleValidateExposures;
- pScreen->ReparentWindow = (void (*)())0;
- pScreen->ChangeBorderWidth = miChangeBorderWidth;
-#ifdef SHAPE
- pScreen->SetShape = miSetShape;
-#endif
- pScreen->MarkUnrealizedWindow = miMarkUnrealizedWindow;
-
- miSetZeroLineBias(pScreen, DEFAULTZEROLINEBIAS);
-
- return miScreenDevPrivateInit(pScreen, width, pbits);
-}
-
-int
-miAllocateGCPrivateIndex()
-{
- static int privateIndex = -1;
- static unsigned long miGeneration = 0;
-
- if (miGeneration != serverGeneration)
- {
- privateIndex = AllocateGCPrivateIndex();
- miGeneration = serverGeneration;
- }
- return privateIndex;
-}
-
-int miZeroLineScreenIndex;
-int miZeroLineGeneration;
-
-void
-miSetZeroLineBias(pScreen, bias)
- ScreenPtr pScreen;
- unsigned int bias;
-{
- if (miZeroLineGeneration != serverGeneration)
- {
- miZeroLineScreenIndex = AllocateScreenPrivateIndex();
- miZeroLineGeneration = serverGeneration;
- }
- if (miZeroLineScreenIndex >= 0)
- pScreen->devPrivates[miZeroLineScreenIndex].uval = bias;
-}
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