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8f26a2f6a7
Using calloc() instead of malloc() as preventive measure, so there never can be any hidden bugs or leaks due uninitialized memory. The extra cost of using this compiler intrinsic should be practically impossible to measure - in many cases a good compiler can even deduce if certain areas really don't need to be zero'd (because they're written to right after allocation) and create more efficient machine code. The code pathes in question are pretty cold anyways, so it's probably not worth even thinking about potential extra runtime costs. Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
90 lines
2.1 KiB
C
90 lines
2.1 KiB
C
/*
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Copyright 1993 by Davor Matic
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Permission to use, copy, modify, distribute, and sell this software
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and its documentation for any purpose is hereby granted without fee,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation. Davor Matic makes no representations about
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the suitability of this software for any purpose. It is provided "as
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is" without express or implied warranty.
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*/
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#include <dix-config.h>
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#include <stddef.h>
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#include <X11/X.h>
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#include <X11/Xatom.h>
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#include <X11/Xdefs.h>
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#include <X11/Xproto.h>
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#include <X11/fonts/font.h>
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#include <X11/fonts/fontstruct.h>
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#include <X11/fonts/libxfont2.h>
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#include "misc.h"
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#include "regionstr.h"
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#include "dixfontstr.h"
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#include "scrnintstr.h"
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#include "Xnest.h"
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#include "Display.h"
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#include "XNFont.h"
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int xnestFontPrivateIndex;
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Bool
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xnestRealizeFont(ScreenPtr pScreen, FontPtr pFont)
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{
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Atom name_atom, value_atom;
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int nprops;
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FontPropPtr props;
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int i;
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const char *name;
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xfont2_font_set_private(pFont, xnestFontPrivateIndex, NULL);
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name_atom = MakeAtom("FONT", 4, TRUE);
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value_atom = 0L;
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nprops = pFont->info.nprops;
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props = pFont->info.props;
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for (i = 0; i < nprops; i++)
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if (props[i].name == name_atom) {
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value_atom = props[i].value;
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break;
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}
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if (!value_atom)
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return FALSE;
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name = NameForAtom(value_atom);
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if (!name)
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return FALSE;
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void *priv = calloc(1, sizeof(xnestPrivFont));
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xfont2_font_set_private(pFont, xnestFontPrivateIndex, priv);
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xnestFontPriv(pFont)->font_struct = XLoadQueryFont(xnestDisplay, name);
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if (!xnestFontStruct(pFont))
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return FALSE;
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return TRUE;
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}
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Bool
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xnestUnrealizeFont(ScreenPtr pScreen, FontPtr pFont)
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{
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if (xnestFontPriv(pFont)) {
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if (xnestFontStruct(pFont))
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XFreeFont(xnestDisplay, xnestFontStruct(pFont));
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free(xnestFontPriv(pFont));
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xfont2_font_set_private(pFont, xnestFontPrivateIndex, NULL);
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}
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return TRUE;
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}
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