xorg-server-1.4/hw/xfree86/xf4bpp/ppcPixmap.c

   1 /*
   2  * Copyright IBM Corporation 1987,1988,1989
   3  *
   4  * All Rights Reserved
   5  *
   6  * Permission to use, copy, modify, and distribute this software and its
   7  * documentation for any purpose and without fee is hereby granted,
   8  * provided that the above copyright notice appear in all copies and that
   9  * both that copyright notice and this permission notice appear in
  10  * supporting documentation, and that the name of IBM not be
  11  * used in advertising or publicity pertaining to distribution of the
  12  * software without specific, written prior permission.
  13  *
  14  * IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
  15  * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
  16  * IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
  17  * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  18  * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
  19  * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
  20  * SOFTWARE.
  21  *
  22 */
  23
  24 /***********************************************************
  25
  26 Copyright (c) 1987  X Consortium
  27
  28 Permission is hereby granted, free of charge, to any person obtaining a copy
  29 of this software and associated documentation files (the "Software"), to deal
  30 in the Software without restriction, including without limitation the rights
  31 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  32 copies of the Software, and to permit persons to whom the Software is
  33 furnished to do so, subject to the following conditions:
  34
  35 The above copyright notice and this permission notice shall be included in
  36 all copies or substantial portions of the Software.
  37
  38 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  39 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  40 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  41 X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  42 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  43 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  44
  45 Except as contained in this notice, the name of the X Consortium shall not be
  46 used in advertising or otherwise to promote the sale, use or other dealings
  47 in this Software without prior written authorization from the X Consortium.
  48
  49
  50 Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
  51
  52                         All Rights Reserved
  53
  54 Permission to use, copy, modify, and distribute this software and its
  55 documentation for any purpose and without fee is hereby granted,
  56 provided that the above copyright notice appear in all copies and that
  57 both that copyright notice and this permission notice appear in
  58 supporting documentation, and that the name of Digital not be
  59 used in advertising or publicity pertaining to distribution of the
  60 software without specific, written prior permission.
  61
  62 DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
  63 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
  64 DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
  65 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  66 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
  67 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
  68 SOFTWARE.
  69
  70 ******************************************************************/
  71
  72 #ifdef HAVE_XORG_CONFIG_H
  73 #include <xorg-config.h>
  74 #endif
  75
  76 #include <string.h>
  77
  78 #include "xf4bpp.h"
  79 #include "servermd.h"
  80 #include "OScompiler.h"
  81 #include "ibmTrace.h"
  82 #include "scrnintstr.h"
  83
  84 PixmapPtr
  85 xf4bppCreatePixmap( pScreen, width, height, depth )
  86     ScreenPtr   pScreen ;
  87     int         width ;
  88     int         height ;
  89     int         depth ;
  90 {
  91     register PixmapPtr pPixmap  = (PixmapPtr)NULL;
  92     size_t size ;
  93
  94     TRACE(("xf4bppCreatePixmap(pScreen=0x%x, width=%d, height=%d, depth=%d)\n", pScreen, width, height, depth)) ;
  95
  96     if ( depth > 8 )
  97         return (PixmapPtr) NULL ;
  98
  99     size = PixmapBytePad(width, depth);
 100
 101     if (size / 4 > 32767 || height > 32767)
 102         return (PixmapPtr) NULL ;
 103
 104     pPixmap = AllocatePixmap (pScreen, (height * size));
 105
 106     if ( !pPixmap )
 107         return (PixmapPtr) NULL ;
 108     pPixmap->drawable.type = DRAWABLE_PIXMAP ;
 109     pPixmap->drawable.class = 0 ;
 110     pPixmap->drawable.pScreen = pScreen ;
 111     pPixmap->drawable.depth = depth ;
 112     pPixmap->drawable.id = 0 ;
 113     pPixmap->drawable.bitsPerPixel = ( depth == 1 ) ? 1 : 8 ;
 114     pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER ;
 115     pPixmap->drawable.x = 0 ;
 116     pPixmap->drawable.y = 0 ;
 117     pPixmap->drawable.width = width ;
 118     pPixmap->drawable.height = height ;
 119     pPixmap->devKind = size;
 120     pPixmap->refcnt = 1 ;
 121     size = height * pPixmap->devKind ;
 122     pPixmap->devPrivate.ptr = (pointer) (((CARD8*)pPixmap)
 123                                          + pScreen->totalPixmapSize);
 124     bzero( (char *) pPixmap->devPrivate.ptr, size ) ;
 125     return pPixmap ;
 126 }
 127
 128 PixmapPtr
 129 xf4bppCopyPixmap(pSrc)
 130     register PixmapPtr  pSrc;
 131 {
 132     register PixmapPtr  pDst;
 133     int         size;
 134
 135     TRACE(("xf4bppCopyPixmap(pSrc=0x%x)\n", pSrc)) ;
 136     size = pSrc->drawable.height * pSrc->devKind;
 137     pDst = xalloc(sizeof(PixmapRec) + size);
 138     if (!pDst)
 139         return NullPixmap;
 140     pDst->drawable = pSrc->drawable;
 141     pDst->drawable.id = 0;
 142     pDst->drawable.serialNumber = NEXT_SERIAL_NUMBER;
 143     pDst->devKind = pSrc->devKind;
 144     pDst->refcnt = 1;
 145     pDst->devPrivate.ptr = (pointer)(pDst + 1);
 146     MOVE( (char *)pSrc->devPrivate.ptr, (char *)pDst->devPrivate.ptr, size ) ;
 147     return pDst;
 148 }