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Annotation of researchv9/X11/src/X.V11R1/server/ddx/mfb/mfbscrinit.c, revision 1.1

1.1     ! root        1: /***********************************************************
        !             2: Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts,
        !             3: and the Massachusetts Institute of Technology, Cambridge, Massachusetts.
        !             4: 
        !             5:                         All Rights Reserved
        !             6: 
        !             7: Permission to use, copy, modify, and distribute this software and its 
        !             8: documentation for any purpose and without fee is hereby granted, 
        !             9: provided that the above copyright notice appear in all copies and that
        !            10: both that copyright notice and this permission notice appear in 
        !            11: supporting documentation, and that the names of Digital or MIT not be
        !            12: used in advertising or publicity pertaining to distribution of the
        !            13: software without specific, written prior permission.  
        !            14: 
        !            15: DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
        !            16: ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
        !            17: DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
        !            18: ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
        !            19: WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
        !            20: ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
        !            21: SOFTWARE.
        !            22: 
        !            23: ******************************************************************/
        !            24: /* $Header: mfbscrinit.c,v 1.52 87/09/07 19:08:52 toddb Exp $ */
        !            25: 
        !            26: #include "X.h"
        !            27: #include "Xproto.h"    /* for xColorItem */
        !            28: #include "Xmd.h"
        !            29: #include "scrnintstr.h"
        !            30: #include "pixmapstr.h"
        !            31: #include "resource.h"
        !            32: #include "colormap.h"
        !            33: #include "mfb.h"
        !            34: #include "mistruct.h"
        !            35: #include "dix.h"
        !            36: 
        !            37: #include "servermd.h"
        !            38: 
        !            39: static void
        !            40: mfbFreeVisual(p, id)
        !            41:     pointer p;
        !            42:     int id;
        !            43: {
        !            44:     Xfree(p);
        !            45: }
        !            46: 
        !            47: /* dts * (inch/dot) * (25.4 mm / inch) = mm */
        !            48: Bool
        !            49: mfbScreenInit(index, pScreen, pbits, xsize, ysize, dpix, dpiy)
        !            50:     int index;
        !            51:     register ScreenPtr pScreen;
        !            52:     pointer pbits;             /* pointer to screen bitmap */
        !            53:     int xsize, ysize;          /* in pixels */
        !            54:     int dpix, dpiy;            /* dots per inch */
        !            55: {
        !            56:     DepthPtr   pDepth;
        !            57:     VisualPtr  pVisual;
        !            58:     long       *pVids;
        !            59:     register PixmapPtr pPixmap;
        !            60: 
        !            61:     pScreen->myNum = index;
        !            62:     pScreen->width = xsize;
        !            63:     pScreen->height = ysize;
        !            64:     pScreen->mmWidth = (xsize * 254) / (dpix * 10);
        !            65:     pScreen->mmHeight = (ysize * 254) / (dpiy * 10);
        !            66:     pScreen->numDepths = 1;
        !            67:     pScreen->allowedDepths = pDepth = (DepthPtr) Xalloc(sizeof(DepthRec));
        !            68: 
        !            69:     pScreen->rootDepth = 1;
        !            70:     pScreen->rootVisual = FakeClientID(0);
        !            71:     pScreen->defColormap = (Colormap) FakeClientID(0);
        !            72:     pScreen->minInstalledCmaps = 1;
        !            73:     pScreen->maxInstalledCmaps = 1;
        !            74:     pScreen->whitePixel = 1;
        !            75:     pScreen->blackPixel = 0;
        !            76:     pScreen->backingStoreSupport = NotUseful;
        !            77:     pScreen->saveUnderSupport = NotUseful;
        !            78: 
        !            79:     /* cursmin and cursmax are device specific */
        !            80: 
        !            81:     pScreen->numVisuals = 1;
        !            82:     pScreen->visuals = pVisual = (VisualPtr) Xalloc(sizeof (VisualRec));
        !            83: 
        !            84:     pPixmap = (PixmapPtr )Xalloc(sizeof(PixmapRec));
        !            85:     pPixmap->drawable.type = DRAWABLE_PIXMAP;
        !            86:     pPixmap->drawable.depth = 1;
        !            87:     pPixmap->drawable.pScreen = pScreen;
        !            88:     pPixmap->drawable.serialNumber = 0;
        !            89:     pPixmap->width = xsize;
        !            90:     pPixmap->height = ysize;
        !            91:     pPixmap->refcnt = 1;
        !            92:     pPixmap->devPrivate = pbits;
        !            93:     pPixmap->devKind = PixmapBytePad(xsize, 1);
        !            94:     pScreen->devPrivate = (pointer)pPixmap;
        !            95: 
        !            96:     /* anything that mfb doesn't know about is assumed to be done
        !            97:        elsewhere.  (we put in no-op only for things that we KNOW
        !            98:        are really no-op.
        !            99:     */
        !           100:     pScreen->CreateWindow = mfbCreateWindow;
        !           101:     pScreen->DestroyWindow = mfbDestroyWindow;
        !           102:     pScreen->PositionWindow = mfbPositionWindow;
        !           103:     pScreen->ChangeWindowAttributes = mfbChangeWindowAttributes;
        !           104:     pScreen->RealizeWindow = mfbMapWindow;
        !           105:     pScreen->UnrealizeWindow = mfbUnmapWindow;
        !           106: 
        !           107:     pScreen->RealizeFont = mfbRealizeFont;
        !           108:     pScreen->UnrealizeFont = mfbUnrealizeFont;
        !           109:     pScreen->GetImage = mfbGetImage;
        !           110:     pScreen->GetSpans = mfbGetSpans;
        !           111:     pScreen->CreateGC = mfbCreateGC;
        !           112:     pScreen->CreatePixmap = mfbCreatePixmap;
        !           113:     pScreen->DestroyPixmap = mfbDestroyPixmap;
        !           114:     pScreen->ValidateTree = miValidateTree;
        !           115: 
        !           116:     pScreen->InstallColormap = mfbInstallColormap;
        !           117:     pScreen->UninstallColormap = mfbUninstallColormap;
        !           118:     pScreen->ListInstalledColormaps = mfbListInstalledColormaps;
        !           119:     pScreen->StoreColors = NoopDDA;
        !           120: 
        !           121:     pScreen->RegionCreate = miRegionCreate;
        !           122:     pScreen->RegionCopy = miRegionCopy;
        !           123:     pScreen->RegionDestroy = miRegionDestroy;
        !           124:     pScreen->Intersect = miIntersect;
        !           125:     pScreen->Inverse = miInverse;
        !           126:     pScreen->Union = miUnion;
        !           127:     pScreen->Subtract = miSubtract;
        !           128:     pScreen->RegionReset = miRegionReset;
        !           129:     pScreen->TranslateRegion = miTranslateRegion;
        !           130:     pScreen->RectIn = miRectIn;
        !           131:     pScreen->PointInRegion = miPointInRegion;
        !           132:     pScreen->WindowExposures = miWindowExposures;
        !           133:     pScreen->RegionNotEmpty = miRegionNotEmpty;
        !           134:     pScreen->RegionEmpty = miRegionEmpty;
        !           135:     pScreen->RegionExtents = miRegionExtents;
        !           136: 
        !           137:     pScreen->BlockHandler = NoopDDA;
        !           138:     pScreen->WakeupHandler = NoopDDA;
        !           139:     pScreen->blockData = (pointer)0;
        !           140:     pScreen->wakeupData = (pointer)0;
        !           141: 
        !           142:     pVisual->vid = pScreen->rootVisual;
        !           143:     pVisual->screen = index;
        !           144:     pVisual->class = StaticGray;
        !           145:     pVisual->redMask = 0;
        !           146:     pVisual->greenMask = 0;
        !           147:     pVisual->blueMask = 0;
        !           148:     pVisual->bitsPerRGBValue = 1;
        !           149:     pVisual->ColormapEntries = 2;
        !           150: 
        !           151:     pDepth->depth = 1;
        !           152:     pDepth->numVids = 1;
        !           153:     pDepth->vids = pVids = (long *) Xalloc(sizeof (long));
        !           154:     pVids[0] = pScreen->rootVisual;    /* our one and only visual */
        !           155:     AddResource(
        !           156:        pScreen->rootVisual, RT_VISUALID, pVisual, mfbFreeVisual, RC_CORE);
        !           157: 
        !           158:     /* we MIGHT return 0 if we had been keeping track of potential
        !           159:        allocation failures.  one day someone will clean this up.
        !           160:     */
        !           161:     return 1;
        !           162: }
        !           163: 

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