xorg-server-1.4/hw/xprint/ps/PsLine.c

   1 /*
   2
   3 Copyright 1996, 1998  The Open Group
   4
   5 Permission to use, copy, modify, distribute, and sell this software and its
   6 documentation for any purpose is hereby granted without fee, provided that
   7 the above copyright notice appear in all copies and that both that
   8 copyright notice and this permission notice appear in supporting
   9 documentation.
  10
  11 The above copyright notice and this permission notice shall be included in
  12 all copies or substantial portions of the Software.
  13
  14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  17 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  18 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  19 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  20
  21 Except as contained in this notice, the name of The Open Group shall not be
  22 used in advertising or otherwise to promote the sale, use or other dealings
  23 in this Software without prior written authorization from The Open Group.
  24
  25 */
  26 /*
  27  * (c) Copyright 1996 Hewlett-Packard Company
  28  * (c) Copyright 1996 International Business Machines Corp.
  29  * (c) Copyright 1996 Sun Microsystems, Inc.
  30  * (c) Copyright 1996 Novell, Inc.
  31  * (c) Copyright 1996 Digital Equipment Corp.
  32  * (c) Copyright 1996 Fujitsu Limited
  33  * (c) Copyright 1996 Hitachi, Ltd.
  34  *
  35  * Permission is hereby granted, free of charge, to any person obtaining
  36  * a copy of this software and associated documentation files (the
  37  * "Software"), to deal in the Software without restriction, including
  38  * without limitation the rights to use, copy, modify, merge, publish,
  39  * distribute, sublicense, and/or sell copies of the Software, and to
  40  * permit persons to whom the Software is furnished to do so, subject
  41  * to the following conditions:
  42  *
  43  * The above copyright notice and this permission notice shall be included
  44  * in all copies or substantial portions of the Software.
  45  *
  46  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  47  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  48  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  49  * THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  50  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
  51  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  52  * SOFTWARE.
  53  *
  54  * Except as contained in this notice, the names of the copyright holders
  55  * shall not be used in advertising or otherwise to promote the sale, use
  56  * or other dealings in this Software without prior written authorization
  57  * from said copyright holders.
  58  */
  59
  60 /*******************************************************************
  61 **
  62 **    *********************************************************
  63 **    *
  64 **    *  File:          PsLine.c
  65 **    *
  66 **    *  Contents:      Line drawing routines for the PS driver
  67 **    *
  68 **    *  Created By:    Roger Helmendach (Liberty Systems)
  69 **    *
  70 **    *  Copyright:     Copyright 1996 The Open Group, Inc.
  71 **    *
  72 **    *********************************************************
  73 **
  74 ********************************************************************/
  75
  76 #ifdef HAVE_DIX_CONFIG_H
  77 #include <dix-config.h>
  78 #endif
  79
  80 #include "Ps.h"
  81 #include "gcstruct.h"
  82 #include "windowstr.h"
  83
  84 void
  85 PsPolyLine(
  86   DrawablePtr  pDrawable,
  87   GCPtr        pGC,
  88   int          mode,
  89   int          nPoints,
  90   xPoint      *pPoints)
  91 {
  92   if( pDrawable->type==DRAWABLE_PIXMAP )
  93   {
  94     DisplayElmPtr   elm;
  95     PixmapPtr       pix  = (PixmapPtr)pDrawable;
  96     PsPixmapPrivPtr priv = (PsPixmapPrivPtr)pix->devPrivate.ptr;
  97     DisplayListPtr  disp;
  98     GCPtr           gc;
  99
 100     if ((gc = PsCreateAndCopyGC(pDrawable, pGC)) == NULL) return;
 101
 102     disp = PsGetFreeDisplayBlock(priv);
 103
 104     elm  = &disp->elms[disp->nelms];
 105     elm->type = PolyLineCmd;
 106     elm->gc   = gc;
 107     elm->c.polyPts.mode    = mode;
 108     elm->c.polyPts.nPoints = nPoints;
 109     elm->c.polyPts.pPoints = (xPoint *)xalloc(nPoints*sizeof(xPoint));
 110     memcpy(elm->c.polyPts.pPoints, pPoints, nPoints*sizeof(xPoint));
 111     disp->nelms += 1;
 112   }
 113   else
 114   {
 115     int         i;
 116     PsOutPtr    psOut;
 117     PsPointPtr  pts;
 118     ColormapPtr cMap;
 119
 120     if( PsUpdateDrawableGC(pGC, pDrawable, &psOut, &cMap)==FALSE ) return;
 121     PsOut_Offset(psOut, pDrawable->x, pDrawable->y);
 122     PsOut_Color(psOut, PsGetPixelColor(cMap, pGC->fgPixel));
 123     PsLineAttrs(psOut, pGC, cMap);
 124     pts = (PsPointPtr)xalloc(sizeof(PsPointRec)*nPoints);
 125     if( mode==CoordModeOrigin )
 126     {
 127       for( i=0 ; i<nPoints ; i++ )
 128         { pts[i].x = pPoints[i].x; pts[i].y = pPoints[i].y; }
 129     }
 130     else
 131     {
 132       pts[0].x = pPoints[0].x; pts[0].y = pPoints[0].y;
 133       for( i=1 ; i<nPoints ;  i++ )
 134       {
 135         pts[i].x = pts[i-1].x+pPoints[i].x;
 136         pts[i].y = pts[i-1].y+pPoints[i].y;
 137       }
 138     }
 139     PsOut_Lines(psOut, nPoints, pts);
 140     xfree(pts);
 141   }
 142 }
 143
 144 void
 145 PsPolySegment(
 146   DrawablePtr  pDrawable,
 147   GCPtr        pGC,
 148   int          nSegments,
 149   xSegment    *pSegments)
 150 {
 151   if( pDrawable->type==DRAWABLE_PIXMAP )
 152   {
 153     DisplayElmPtr   elm;
 154     PixmapPtr       pix  = (PixmapPtr)pDrawable;
 155     PsPixmapPrivPtr priv = (PsPixmapPrivPtr)pix->devPrivate.ptr;
 156     DisplayListPtr  disp;
 157     GCPtr           gc;
 158
 159     if ((gc = PsCreateAndCopyGC(pDrawable, pGC)) == NULL) return;
 160
 161     disp = PsGetFreeDisplayBlock(priv);
 162
 163     elm  = &disp->elms[disp->nelms];
 164     elm->type = PolySegmentCmd;
 165     elm->gc   = gc;
 166     elm->c.segments.nSegments = nSegments;
 167     elm->c.segments.pSegments = (xSegment *)xalloc(nSegments*sizeof(xSegment));
 168     memcpy(elm->c.segments.pSegments, pSegments, nSegments*sizeof(xSegment));
 169     disp->nelms += 1;
 170   }
 171   else
 172   {
 173     int         i;
 174     PsOutPtr    psOut;
 175     PsPointRec  pts[2];
 176     ColormapPtr cMap;
 177
 178     if( PsUpdateDrawableGC(pGC, pDrawable, &psOut, &cMap)==FALSE ) return;
 179     PsOut_Offset(psOut, pDrawable->x, pDrawable->y);
 180     PsOut_Color(psOut, PsGetPixelColor(cMap, pGC->fgPixel));
 181     PsLineAttrs(psOut, pGC, cMap);
 182     for( i=0 ; i<nSegments ; i++ )
 183     {
 184       pts[0].x = pSegments[i].x1;
 185       pts[0].y = pSegments[i].y1;
 186       pts[1].x = pSegments[i].x2;
 187       pts[1].y = pSegments[i].y2;
 188       PsOut_Lines(psOut, 2, pts);
 189     }
 190   }
 191 }