diff options
| -rw-r--r-- | nx-X11/programs/Xserver/hw/nxagent/NXglyph.c | 61 | ||||
| -rw-r--r-- | nx-X11/programs/Xserver/render/glyph.c | 2 |
2 files changed, 63 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/hw/nxagent/NXglyph.c b/nx-X11/programs/Xserver/hw/nxagent/NXglyph.c index 1f82e73dc..72d8242bd 100644 --- a/nx-X11/programs/Xserver/hw/nxagent/NXglyph.c +++ b/nx-X11/programs/Xserver/hw/nxagent/NXglyph.c @@ -59,6 +59,67 @@ #endif +GlyphRefPtr +FindGlyphRef (GlyphHashPtr hash, CARD32 signature, Bool match, GlyphPtr compare) +{ + CARD32 elt, step, s; + GlyphPtr glyph; + GlyphRefPtr table, gr, del; + CARD32 tableSize = hash->hashSet->size; + + table = hash->table; + elt = signature % tableSize; + step = 0; + del = 0; + for (;;) + { + gr = &table[elt]; + s = gr->signature; + glyph = gr->glyph; + if (!glyph) + { + if (del) + gr = del; + break; + } + if (glyph == DeletedGlyph) + { + if (!del) + del = gr; + else if (gr == del) + break; + } +#ifdef NXAGENT_SERVER + else if (s == signature && match && glyph->size != compare->size) + { + /* + * if the glyphsize is different there's no need to do a memcmp + * because it will surely report difference. And even worse: + * it will read beyond the end of glyph under some + * circumstances, which can be detected when compiling with + * -fsanitize=address. + */ + } +#endif + else if (s == signature && + (!match || + memcmp (&compare->info, &glyph->info, compare->size) == 0)) + { + break; + } + if (!step) + { + step = signature % hash->hashSet->rehash; + if (!step) + step = 1; + } + elt += step; + if (elt >= tableSize) + elt -= tableSize; + } + return gr; +} + void AddGlyph (GlyphSetPtr glyphSet, GlyphPtr glyph, Glyph id) { diff --git a/nx-X11/programs/Xserver/render/glyph.c b/nx-X11/programs/Xserver/render/glyph.c index a379b505f..93aed401b 100644 --- a/nx-X11/programs/Xserver/render/glyph.c +++ b/nx-X11/programs/Xserver/render/glyph.c @@ -144,6 +144,7 @@ GlyphInit (ScreenPtr pScreen) return TRUE; } +#ifndef NXAGENT_SERVER GlyphRefPtr FindGlyphRef (GlyphHashPtr hash, CARD32 signature, Bool match, GlyphPtr compare) { @@ -192,6 +193,7 @@ FindGlyphRef (GlyphHashPtr hash, CARD32 signature, Bool match, GlyphPtr compare) } return gr; } +#endif CARD32 HashGlyph (GlyphPtr glyph) |