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      1 /*
      2 
      3 Copyright 1991, 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 /*
     28  * Author:  Keith Packard, MIT X Consortium
     29  */
     30 
     31 #ifdef HAVE_CONFIG_H
     32 #include <config.h>
     33 #endif
     34 #include    <X11/fonts/fontmisc.h>
     35 #include    <X11/fonts/fontstruct.h>
     36 
     37 static int _FontPrivateAllocateIndex = 0;
     38 
     39 int
     40 AllocateFontPrivateIndex (void)
     41 {
     42     return _FontPrivateAllocateIndex++;
     43 }
     44 
     45 FontPtr
     46 CreateFontRec (void)
     47 {
     48     FontPtr pFont;
     49     int size;
     50 
     51     size = sizeof(FontRec) + (sizeof(pointer) * _FontPrivateAllocateIndex);
     52 
     53     pFont = malloc(size);
     54 
     55     if(pFont) {
     56 	bzero((char*)pFont, size);
     57 	pFont->maxPrivate = _FontPrivateAllocateIndex - 1;
     58 	if(_FontPrivateAllocateIndex)
     59 	    pFont->devPrivates = (pointer)(&pFont[1]);
     60     }
     61 
     62     return pFont;
     63 }
     64 
     65 void
     66 DestroyFontRec (FontPtr pFont)
     67 {
     68    if (pFont->devPrivates && pFont->devPrivates != (pointer)(&pFont[1]))
     69 	free(pFont->devPrivates);
     70    free(pFont);
     71 }
     72 
     73 void
     74 ResetFontPrivateIndex (void)
     75 {
     76     _FontPrivateAllocateIndex = 0;
     77 }
     78 
     79 Bool
     80 _FontSetNewPrivate (FontPtr pFont, int n, pointer ptr)
     81 {
     82     pointer *new;
     83 
     84     if (n > pFont->maxPrivate) {
     85 	if (pFont->devPrivates && pFont->devPrivates != (pointer)(&pFont[1])) {
     86 	    new = realloc (pFont->devPrivates, (n + 1) * sizeof (pointer));
     87 	    if (!new)
     88 		return FALSE;
     89 	} else {
     90 	    /* omg realloc */
     91 	    new = malloc ((n + 1) * sizeof (pointer));
     92 	    if (!new)
     93 		return FALSE;
     94 	    if (pFont->devPrivates)
     95 		memcpy (new, pFont->devPrivates, (pFont->maxPrivate + 1) * sizeof (pointer));
     96 	}
     97 	pFont->devPrivates = new;
     98 	/* zero out new, uninitialized privates */
     99 	while(++pFont->maxPrivate < n)
    100 	    pFont->devPrivates[pFont->maxPrivate] = (pointer)0;
    101     }
    102     pFont->devPrivates[n] = ptr;
    103     return TRUE;
    104 }
    105 
    106