SECURITY: adopt the xpdf diffs.
Comments? Oks?
(developers can also find this diff at ~kili/kdegraphics.diff)
Index: Makefile
===================================================================
RCS file: /cvs/ports/x11/kde/graphics3/Makefile,v
retrieving revision 1.82
diff -u -p -r1.82 Makefile
--- Makefile 26 Aug 2008 16:52:29 -0000 1.82
+++ Makefile 19 Apr 2009 21:16:49 -0000
@@ -14,7 +14,7 @@ SEPARATE_BUILD = flavored
MULTI_PACKAGES = -main -kpov -kamera -sane
PKGNAME=${DISTNAME}
-PKGNAME-main = ${DISTNAME}
+PKGNAME-main = ${DISTNAME}p0
PKGNAME-kamera = kamera-${VERSION}
PKGNAME-kpov = kpovmodeller-${VERSION}
PKGNAME-sane = ksane-${VERSION}
Index: patches/patch-kpdf_xpdf_goo_gmem_cc
===================================================================
RCS file: patches/patch-kpdf_xpdf_goo_gmem_cc
diff -N patches/patch-kpdf_xpdf_goo_gmem_cc
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ patches/patch-kpdf_xpdf_goo_gmem_cc 19 Apr 2009 21:16:49 -0000
@@ -0,0 +1,71 @@
+$OpenBSD$
+--- kpdf/xpdf/goo/gmem.cc.orig Wed Feb 13 10:37:05 2008
++++ kpdf/xpdf/goo/gmem.cc Sun Apr 19 22:28:20 2009
+@@ -55,7 +55,15 @@ void *gmalloc(int size) GMEM_EXCEP {
+ void *data;
+ unsigned long *trl, *p;
+
+- if (size <= 0) {
++ if (size < 0) {
++#if USE_EXCEPTIONS
++ throw GMemException();
++#else
++ fprintf(stderr, "Invalid memory allocation size\n");
++ exit(1);
++#endif
++ }
++ if (size == 0) {
+ return NULL;
+ }
+ size1 = gMemDataSize(size);
+@@ -91,7 +99,15 @@ void *gmalloc(int size) GMEM_EXCEP {
+ #else
+ void *p;
+
+- if (size <= 0) {
++ if (size < 0) {
++#if USE_EXCEPTIONS
++ throw GMemException();
++#else
++ fprintf(stderr, "Invalid memory allocation size\n");
++ exit(1);
++#endif
++ }
++ if (size == 0) {
+ return NULL;
+ }
+ if (!(p = malloc(size))) {
+@@ -112,7 +128,15 @@ void *grealloc(void *p, int size) GMEM_EXCEP {
+ void *q;
+ int oldSize;
+
+- if (size <= 0) {
++ if (size < 0) {
++#if USE_EXCEPTIONS
++ throw GMemException();
++#else
++ fprintf(stderr, "Invalid memory allocation size\n");
++ exit(1);
++#endif
++ }
++ if (size == 0) {
+ if (p) {
+ gfree(p);
+ }
+@@ -131,7 +155,15 @@ void *grealloc(void *p, int size) GMEM_EXCEP {
+ #else
+ void *q;
+
+- if (size <= 0) {
++ if (size < 0) {
++#if USE_EXCEPTIONS
++ throw GMemException();
++#else
++ fprintf(stderr, "Invalid memory allocation size\n");
++ exit(1);
++#endif
++ }
++ if (size == 0) {
+ if (p) {
+ free(p);
+ }
Index: patches/patch-kpdf_xpdf_xpdf_JBIG2Stream_cc
===================================================================
RCS file: patches/patch-kpdf_xpdf_xpdf_JBIG2Stream_cc
diff -N patches/patch-kpdf_xpdf_xpdf_JBIG2Stream_cc
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ patches/patch-kpdf_xpdf_xpdf_JBIG2Stream_cc 19 Apr 2009 21:16:49 -0000
@@ -0,0 +1,776 @@
+$OpenBSD$
+--- kpdf/xpdf/xpdf/JBIG2Stream.cc.orig Tue Aug 19 20:12:37 2008
++++ kpdf/xpdf/xpdf/JBIG2Stream.cc Sun Apr 19 22:57:52 2009
+@@ -422,12 +422,14 @@ void JBIG2HuffmanDecoder::buildTable(JBIG2HuffmanTable
+ table[i] = table[len];
+
+ // assign prefixes
+- i = 0;
+- prefix = 0;
+- table[i++].prefix = prefix++;
+- for (; table[i].rangeLen != jbig2HuffmanEOT; ++i) {
+- prefix <<= table[i].prefixLen - table[i-1].prefixLen;
+- table[i].prefix = prefix++;
++ if (table[0].rangeLen != jbig2HuffmanEOT) {
++ i = 0;
++ prefix = 0;
++ table[i++].prefix = prefix++;
++ for (; table[i].rangeLen != jbig2HuffmanEOT; ++i) {
++ prefix <<= table[i].prefixLen - table[i-1].prefixLen;
++ table[i].prefix = prefix++;
++ }
+ }
+ }
+
+@@ -491,7 +493,7 @@ int JBIG2MMRDecoder::get2DCode() {
+ }
+ if (p->bits < 0) {
+ error(str->getPos(), "Bad two dim code in JBIG2 MMR stream");
+- return 0;
++ return EOF;
+ }
+ bufLen -= p->bits;
+ return p->n;
+@@ -684,8 +686,9 @@ JBIG2Bitmap::JBIG2Bitmap(Guint segNumA, int wA, int hA
+ h = hA;
+ line = (wA + 7) >> 3;
+ if (w <= 0 || h <= 0 || line <= 0 || h >= (INT_MAX - 1) / line) {
+- data = NULL;
+- return;
++ // force a call to gmalloc(-1), which will throw an exception
++ h = -1;
++ line = 2;
+ }
+ // need to allocate one extra guard byte for use in combine()
+ data = (Guchar *)gmalloc(h * line + 1);
+@@ -699,8 +702,9 @@ JBIG2Bitmap::JBIG2Bitmap(Guint segNumA, JBIG2Bitmap *b
+ h = bitmap->h;
+ line = bitmap->line;
+ if (w <= 0 || h <= 0 || line <= 0 || h >= (INT_MAX - 1) / line) {
+- data = NULL;
+- return;
++ // force a call to gmalloc(-1), which will throw an exception
++ h = -1;
++ line = 2;
+ }
+ // need to allocate one extra guard byte for use in combine()
+ data = (Guchar *)gmalloc(h * line + 1);
+@@ -755,6 +759,8 @@ void JBIG2Bitmap::clearToOne() {
+ inline void JBIG2Bitmap::getPixelPtr(int x, int y, JBIG2BitmapPtr *ptr) {
+ if (y < 0 || y >= h || x >= w) {
+ ptr->p = NULL;
++ ptr->shift = 0; // make gcc happy
++ ptr->x = 0; // make gcc happy
+ } else if (x < 0) {
+ ptr->p = &data[y * line];
+ ptr->shift = 7;
+@@ -799,6 +805,10 @@ void JBIG2Bitmap::combine(JBIG2Bitmap *bitmap, int x,
+ Guint src0, src1, src, dest, s1, s2, m1, m2, m3;
+ GBool oneByte;
+
++ // check for the pathological case where y = -2^31
++ if (y < -0x7fffffff) {
++ return;
++ }
+ if (y < 0) {
+ y0 = -y;
+ } else {
+@@ -1012,8 +1022,13 @@ class JBIG2SymbolDict: public JBIG2Segment { (private)
+ JBIG2SymbolDict::JBIG2SymbolDict(Guint segNumA, Guint sizeA):
+ JBIG2Segment(segNumA)
+ {
++ Guint i;
++
+ size = sizeA;
+ bitmaps = (JBIG2Bitmap **)gmallocn(size, sizeof(JBIG2Bitmap *));
++ for (i = 0; i < size; ++i) {
++ bitmaps[i] = NULL;
++ }
+ genericRegionStats = NULL;
+ refinementRegionStats = NULL;
+ }
+@@ -1022,7 +1037,9 @@ JBIG2SymbolDict::~JBIG2SymbolDict() {
+ Guint i;
+
+ for (i = 0; i < size; ++i) {
+- delete bitmaps[i];
++ if (bitmaps[i]) {
++ delete bitmaps[i];
++ }
+ }
+ gfree(bitmaps);
+ if (genericRegionStats) {
+@@ -1301,6 +1318,13 @@ void JBIG2Stream::readSegments() {
+ // keep track of the start of the segment data
+ segDataPos = getPos();
+
++ // check for missing page information segment
++ if (!pageBitmap && ((segType >= 4 && segType <= 7) ||
++ (segType >= 20 && segType <= 43))) {
++ error(getPos(), "First JBIG2 segment associated with a page must be a
page information segment");
++ goto syntaxError;
++ }
++
+ // read the segment data
+ switch (segType) {
+ case 0:
+@@ -1455,6 +1479,8 @@ GBool JBIG2Stream::readSymbolDictSeg(Guint segNum, Gui
+ Guint i, j, k;
+ Guchar *p;
+
++ symWidths = NULL;
++
+ // symbol dictionary flags
+ if (!readUWord(&flags)) {
+ goto eofError;
+@@ -1515,7 +1541,13 @@ GBool JBIG2Stream::readSymbolDictSeg(Guint segNum, Gui
+ // part of it
+ if ((seg = findSegment(refSegs[i]))) {
+ if (seg->getType() == jbig2SegSymbolDict) {
+- numInputSyms += ((JBIG2SymbolDict *)seg)->getSize();
++ j = ((JBIG2SymbolDict *)seg)->getSize();
++ if (numInputSyms > UINT_MAX - j) {
++ error(getPos(), "Too many input symbols in JBIG2 symbol dictionary");
++ delete codeTables;
++ goto eofError;
++ }
++ numInputSyms += j;
+ } else if (seg->getType() == jbig2SegCodeTable) {
+ codeTables->append(seg);
+ }
+@@ -1523,13 +1555,18 @@ GBool JBIG2Stream::readSymbolDictSeg(Guint segNum, Gui
+ return gFalse;
+ }
+ }
++ if (numInputSyms > UINT_MAX - numNewSyms) {
++ error(getPos(), "Too many input symbols in JBIG2 symbol dictionary");
++ delete codeTables;
++ goto eofError;
++ }
+
+ // compute symbol code length
+- symCodeLen = 0;
+- i = 1;
+- while (i < numInputSyms + numNewSyms) {
++ symCodeLen = 1;
++ i = (numInputSyms + numNewSyms) >> 1;
++ while (i) {
+ ++symCodeLen;
+- i <<= 1;
++ i >>= 1;
+ }
+
+ // get the input symbol bitmaps
+@@ -1541,11 +1578,12 @@ GBool JBIG2Stream::readSymbolDictSeg(Guint segNum, Gui
+ k = 0;
+ inputSymbolDict = NULL;
+ for (i = 0; i < nRefSegs; ++i) {
+- seg = findSegment(refSegs[i]);
+- if (seg->getType() == jbig2SegSymbolDict) {
+- inputSymbolDict = (JBIG2SymbolDict *)seg;
+- for (j = 0; j < inputSymbolDict->getSize(); ++j) {
+- bitmaps[k++] = inputSymbolDict->getBitmap(j);
++ if ((seg = findSegment(refSegs[i]))) {
++ if (seg->getType() == jbig2SegSymbolDict) {
++ inputSymbolDict = (JBIG2SymbolDict *)seg;
++ for (j = 0; j < inputSymbolDict->getSize(); ++j) {
++ bitmaps[k++] = inputSymbolDict->getBitmap(j);
++ }
+ }
+ }
+ }
+@@ -1560,6 +1598,9 @@ GBool JBIG2Stream::readSymbolDictSeg(Guint segNum, Gui
+ } else if (huffDH == 1) {
+ huffDHTable = huffTableE;
+ } else {
++ if (i >= (Guint)codeTables->getLength()) {
++ goto codeTableError;
++ }
+ huffDHTable = ((JBIG2CodeTable *)codeTables->get(i++))->getHuffTable();
+ }
+ if (huffDW == 0) {
+@@ -1567,17 +1608,26 @@ GBool JBIG2Stream::readSymbolDictSeg(Guint segNum, Gui
+ } else if (huffDW == 1) {
+ huffDWTable = huffTableC;
+ } else {
++ if (i >= (Guint)codeTables->getLength()) {
++ goto codeTableError;
++ }
+ huffDWTable = ((JBIG2CodeTable *)codeTables->get(i++))->getHuffTable();
+ }
+ if (huffBMSize == 0) {
+ huffBMSizeTable = huffTableA;
+ } else {
++ if (i >= (Guint)codeTables->getLength()) {
++ goto codeTableError;
++ }
+ huffBMSizeTable =
+ ((JBIG2CodeTable *)codeTables->get(i++))->getHuffTable();
+ }
+ if (huffAggInst == 0) {
+ huffAggInstTable = huffTableA;
+ } else {
++ if (i >= (Guint)codeTables->getLength()) {
++ goto codeTableError;
++ }
+ huffAggInstTable =
+ ((JBIG2CodeTable *)codeTables->get(i++))->getHuffTable();
+ }
+@@ -1610,7 +1660,6 @@ GBool JBIG2Stream::readSymbolDictSeg(Guint segNum, Gui
+ }
+
+ // allocate symbol widths storage
+- symWidths = NULL;
+ if (huff && !refAgg) {
+ symWidths = (Guint *)gmallocn(numNewSyms, sizeof(Guint));
+ }
+@@ -1652,6 +1701,10 @@ GBool JBIG2Stream::readSymbolDictSeg(Guint segNum, Gui
+ goto syntaxError;
+ }
+ symWidth += dw;
++ if (i >= numNewSyms) {
++ error(getPos(), "Too many symbols in JBIG2 symbol dictionary");
++ goto syntaxError;
++ }
+
+ // using a collective bitmap, so don't read a bitmap here
+ if (huff && !refAgg) {
+@@ -1688,6 +1741,10 @@ GBool JBIG2Stream::readSymbolDictSeg(Guint segNum, Gui
+ arithDecoder->decodeInt(&refDX, iardxStats);
+ arithDecoder->decodeInt(&refDY, iardyStats);
+ }
++ if (symID >= numInputSyms + i) {
++ error(getPos(), "Invalid symbol ID in JBIG2 symbol dictionary");
++ goto syntaxError;
++ }
+ refBitmap = bitmaps[symID];
+ bitmaps[numInputSyms + i] =
+ readGenericRefinementRegion(symWidth, symHeight,
+@@ -1754,6 +1811,12 @@ GBool JBIG2Stream::readSymbolDictSeg(Guint segNum, Gui
+ } else {
+ arithDecoder->decodeInt(&run, iaexStats);
+ }
++ if (i + run > numInputSyms + numNewSyms ||
++ (ex && j + run > numExSyms)) {
++ error(getPos(), "Too many exported symbols in JBIG2 symbol dictionary");
++ delete symbolDict;
++ goto syntaxError;
++ }
+ if (ex) {
+ for (cnt = 0; cnt < run; ++cnt) {
+ symbolDict->setBitmap(j++, bitmaps[i++]->copy());
+@@ -1763,6 +1826,11 @@ GBool JBIG2Stream::readSymbolDictSeg(Guint segNum, Gui
+ }
+ ex = !ex;
+ }
++ if (j != numExSyms) {
++ error(getPos(), "Too few symbols in JBIG2 symbol dictionary");
++ delete symbolDict;
++ goto syntaxError;
++ }
+
+ for (i = 0; i < numNewSyms; ++i) {
+ delete bitmaps[numInputSyms + i];
+@@ -1785,6 +1853,10 @@ GBool JBIG2Stream::readSymbolDictSeg(Guint segNum, Gui
+
+ return gTrue;
+
++ codeTableError:
++ error(getPos(), "Missing code table in JBIG2 symbol dictionary");
++ delete codeTables;
++
+ syntaxError:
+ for (i = 0; i < numNewSyms; ++i) {
+ if (bitmaps[numInputSyms + i]) {
+@@ -1887,6 +1959,8 @@ void JBIG2Stream::readTextRegionSeg(Guint segNum, GBoo
+ }
+ } else {
+ error(getPos(), "Invalid segment reference in JBIG2 text region");
++ delete codeTables;
++ return;
+ }
+ }
+ symCodeLen = 0;
+@@ -1921,6 +1995,9 @@ void JBIG2Stream::readTextRegionSeg(Guint segNum, GBoo
+ } else if (huffFS == 1) {
+ huffFSTable = huffTableG;
+ } else {
++ if (i >= (Guint)codeTables->getLength()) {
++ goto codeTableError;
++ }
+ huffFSTable = ((JBIG2CodeTable *)codeTables->get(i++))->getHuffTable();
+ }
+ if (huffDS == 0) {
+@@ -1930,6 +2007,9 @@ void JBIG2Stream::readTextRegionSeg(Guint segNum, GBoo
+ } else if (huffDS == 2) {
+ huffDSTable = huffTableJ;
+ } else {
++ if (i >= (Guint)codeTables->getLength()) {
++ goto codeTableError;
++ }
+ huffDSTable = ((JBIG2CodeTable *)codeTables->get(i++))->getHuffTable();
+ }
+ if (huffDT == 0) {
+@@ -1939,6 +2019,9 @@ void JBIG2Stream::readTextRegionSeg(Guint segNum, GBoo
+ } else if (huffDT == 2) {
+ huffDTTable = huffTableM;
+ } else {
++ if (i >= (Guint)codeTables->getLength()) {
++ goto codeTableError;
++ }
+ huffDTTable = ((JBIG2CodeTable *)codeTables->get(i++))->getHuffTable();
+ }
+ if (huffRDW == 0) {
+@@ -1946,6 +2029,9 @@ void JBIG2Stream::readTextRegionSeg(Guint segNum, GBoo
+ } else if (huffRDW == 1) {
+ huffRDWTable = huffTableO;
+ } else {
++ if (i >= (Guint)codeTables->getLength()) {
++ goto codeTableError;
++ }
+ huffRDWTable = ((JBIG2CodeTable *)codeTables->get(i++))->getHuffTable();
+ }
+ if (huffRDH == 0) {
+@@ -1953,6 +2039,9 @@ void JBIG2Stream::readTextRegionSeg(Guint segNum, GBoo
+ } else if (huffRDH == 1) {
+ huffRDHTable = huffTableO;
+ } else {
++ if (i >= (Guint)codeTables->getLength()) {
++ goto codeTableError;
++ }
+ huffRDHTable = ((JBIG2CodeTable *)codeTables->get(i++))->getHuffTable();
+ }
+ if (huffRDX == 0) {
+@@ -1960,6 +2049,9 @@ void JBIG2Stream::readTextRegionSeg(Guint segNum, GBoo
+ } else if (huffRDX == 1) {
+ huffRDXTable = huffTableO;
+ } else {
++ if (i >= (Guint)codeTables->getLength()) {
++ goto codeTableError;
++ }
+ huffRDXTable = ((JBIG2CodeTable *)codeTables->get(i++))->getHuffTable();
+ }
+ if (huffRDY == 0) {
+@@ -1967,11 +2059,17 @@ void JBIG2Stream::readTextRegionSeg(Guint segNum, GBoo
+ } else if (huffRDY == 1) {
+ huffRDYTable = huffTableO;
+ } else {
++ if (i >= (Guint)codeTables->getLength()) {
++ goto codeTableError;
++ }
+ huffRDYTable = ((JBIG2CodeTable *)codeTables->get(i++))->getHuffTable();
+ }
+ if (huffRSize == 0) {
+ huffRSizeTable = huffTableA;
+ } else {
++ if (i >= (Guint)codeTables->getLength()) {
++ goto codeTableError;
++ }
+ huffRSizeTable =
+ ((JBIG2CodeTable *)codeTables->get(i++))->getHuffTable();
+ }
+@@ -2066,8 +2164,15 @@ void JBIG2Stream::readTextRegionSeg(Guint segNum, GBoo
+
+ return;
+
++ codeTableError:
++ error(getPos(), "Missing code table in JBIG2 text region");
++ gfree(codeTables);
++ delete syms;
++ return;
++
+ eofError:
+ error(getPos(), "Unexpected EOF in JBIG2 stream");
++ return;
+ }
+
+ JBIG2Bitmap *JBIG2Stream::readTextRegion(GBool huff, GBool refine,
+@@ -2374,8 +2479,8 @@ void JBIG2Stream::readHalftoneRegionSeg(Guint segNum,
+ error(getPos(), "Bad symbol dictionary reference in JBIG2 halftone
segment");
+ return;
+ }
+- seg = findSegment(refSegs[0]);
+- if (seg->getType() != jbig2SegPatternDict) {
++ if (!(seg = findSegment(refSegs[0])) ||
++ seg->getType() != jbig2SegPatternDict) {
+ error(getPos(), "Bad symbol dictionary reference in JBIG2 halftone
segment");
+ return;
+ }
+@@ -2533,7 +2638,7 @@ void JBIG2Stream::readGenericRegionSeg(Guint segNum, G
+
+ // read the bitmap
+ bitmap = readGenericBitmap(mmr, w, h, templ, tpgdOn, gFalse,
+- NULL, atx, aty, mmr ? 0 : length - 18);
++ NULL, atx, aty, mmr ? length - 18 : 0);
+
+ // combine the region bitmap into the page bitmap
+ if (imm) {
+@@ -2555,6 +2660,43 @@ void JBIG2Stream::readGenericRegionSeg(Guint segNum, G
+ error(getPos(), "Unexpected EOF in JBIG2 stream");
+ }
+
++inline void JBIG2Stream::mmrAddPixels(int a1, int blackPixels,
++ int *codingLine, int *a0i, int w) {
++ if (a1 > codingLine[*a0i]) {
++ if (a1 > w) {
++ error(getPos(), "JBIG2 MMR row is wrong length ({0:d})", a1);
++ a1 = w;
++ }
++ if ((*a0i & 1) ^ blackPixels) {
++ ++*a0i;
++ }
++ codingLine[*a0i] = a1;
++ }
++}
++
++inline void JBIG2Stream::mmrAddPixelsNeg(int a1, int blackPixels,
++ int *codingLine, int *a0i, int w) {
++ if (a1 > codingLine[*a0i]) {
++ if (a1 > w) {
++ error(getPos(), "JBIG2 MMR row is wrong length ({0:d})", a1);
++ a1 = w;
++ }
++ if ((*a0i & 1) ^ blackPixels) {
++ ++*a0i;
++ }
++ codingLine[*a0i] = a1;
++ } else if (a1 < codingLine[*a0i]) {
++ if (a1 < 0) {
++ error(getPos(), "Invalid JBIG2 MMR code");
++ a1 = 0;
++ }
++ while (*a0i > 0 && a1 <= codingLine[*a0i - 1]) {
++ --*a0i;
++ }
++ codingLine[*a0i] = a1;
++ }
++}
++
+ JBIG2Bitmap *JBIG2Stream::readGenericBitmap(GBool mmr, int w, int h,
+ int templ, GBool tpgdOn,
+ GBool useSkip, JBIG2Bitmap *skip,
+@@ -2567,7 +2709,7 @@ JBIG2Bitmap *JBIG2Stream::readGenericBitmap(GBool mmr,
+ JBIG2BitmapPtr atPtr0, atPtr1, atPtr2, atPtr3;
+ int *refLine, *codingLine;
+ int code1, code2, code3;
+- int x, y, a0, pix, i, refI, codingI;
++ int x, y, a0i, b1i, blackPixels, pix, i;
+
+ bitmap = new JBIG2Bitmap(0, w, h);
+ bitmap->clearToZero();
+@@ -2577,9 +2719,18 @@ JBIG2Bitmap *JBIG2Stream::readGenericBitmap(GBool mmr,
+ if (mmr) {
+
+ mmrDecoder->reset();
++ if (w > INT_MAX - 2) {
++ error(getPos(), "Bad width in JBIG2 generic bitmap");
++ // force a call to gmalloc(-1), which will throw an exception
++ w = -3;
++ }
++ // 0 <= codingLine[0] < codingLine[1] < ... < codingLine[n] = w
++ // ---> max codingLine size = w + 1
++ // refLine has one extra guard entry at the end
++ // ---> max refLine size = w + 2
++ codingLine = (int *)gmallocn(w + 1, sizeof(int));
+ refLine = (int *)gmallocn(w + 2, sizeof(int));
+- codingLine = (int *)gmallocn(w + 2, sizeof(int));
+- codingLine[0] = codingLine[1] = w;
++ codingLine[0] = w;
+
+ for (y = 0; y < h; ++y) {
+
+@@ -2587,128 +2738,157 @@ JBIG2Bitmap *JBIG2Stream::readGenericBitmap(GBool
mmr,
+ for (i = 0; codingLine[i] < w; ++i) {
+ refLine[i] = codingLine[i];
+ }
+- refLine[i] = refLine[i + 1] = w;
++ refLine[i++] = w;
++ refLine[i] = w;
+
+ // decode a line
+- refI = 0; // b1 = refLine[refI]
+- codingI = 0; // a1 = codingLine[codingI]
+- a0 = 0;
+- do {
++ codingLine[0] = 0;
++ a0i = 0;
++ b1i = 0;
++ blackPixels = 0;
++ // invariant:
++ // refLine[b1i-1] <= codingLine[a0i] < refLine[b1i] < refLine[b1i+1] <=
w
++ // exception at left edge:
++ // codingLine[a0i = 0] = refLine[b1i = 0] = 0 is possible
++ // exception at right edge:
++ // refLine[b1i] = refLine[b1i+1] = w is possible
++ while (codingLine[a0i] < w) {
+ code1 = mmrDecoder->get2DCode();
+ switch (code1) {
+ case twoDimPass:
+- if (refLine[refI] < w) {
+- a0 = refLine[refI + 1];
+- refI += 2;
+- }
+- break;
++ mmrAddPixels(refLine[b1i + 1], blackPixels, codingLine, &a0i, w);
++ if (refLine[b1i + 1] < w) {
++ b1i += 2;
++ }
++ break;
+ case twoDimHoriz:
+- if (codingI & 1) {
+- code1 = 0;
+- do {
+- code1 += code3 = mmrDecoder->getBlackCode();
+- } while (code3 >= 64);
+- code2 = 0;
+- do {
+- code2 += code3 = mmrDecoder->getWhiteCode();
+- } while (code3 >= 64);
+- } else {
+- code1 = 0;
+- do {
+- code1 += code3 = mmrDecoder->getWhiteCode();
+- } while (code3 >= 64);
+- code2 = 0;
+- do {
+- code2 += code3 = mmrDecoder->getBlackCode();
+- } while (code3 >= 64);
+- }
+- if (code1 > 0 || code2 > 0) {
+- a0 = codingLine[codingI++] = a0 + code1;
+- a0 = codingLine[codingI++] = a0 + code2;
+- while (refLine[refI] <= a0 && refLine[refI] < w) {
+- refI += 2;
+- }
+- }
+- break;
+- case twoDimVert0:
+- a0 = codingLine[codingI++] = refLine[refI];
+- if (refLine[refI] < w) {
+- ++refI;
+- }
+- break;
+- case twoDimVertR1:
+- a0 = codingLine[codingI++] = refLine[refI] + 1;
+- if (refLine[refI] < w) {
+- ++refI;
+- while (refLine[refI] <= a0 && refLine[refI] < w) {
+- refI += 2;
+- }
+- }
+- break;
+- case twoDimVertR2:
+- a0 = codingLine[codingI++] = refLine[refI] + 2;
+- if (refLine[refI] < w) {
+- ++refI;
+- while (refLine[refI] <= a0 && refLine[refI] < w) {
+- refI += 2;
+- }
+- }
+- break;
++ code1 = code2 = 0;
++ if (blackPixels) {
++ do {
++ code1 += code3 = mmrDecoder->getBlackCode();
++ } while (code3 >= 64);
++ do {
++ code2 += code3 = mmrDecoder->getWhiteCode();
++ } while (code3 >= 64);
++ } else {
++ do {
++ code1 += code3 = mmrDecoder->getWhiteCode();
++ } while (code3 >= 64);
++ do {
++ code2 += code3 = mmrDecoder->getBlackCode();
++ } while (code3 >= 64);
++ }
++ mmrAddPixels(codingLine[a0i] + code1, blackPixels,
++ codingLine, &a0i, w);
++ if (codingLine[a0i] < w) {
++ mmrAddPixels(codingLine[a0i] + code2, blackPixels ^ 1,
++ codingLine, &a0i, w);
++ }
++ while (refLine[b1i] <= codingLine[a0i] && refLine[b1i] < w) {
++ b1i += 2;
++ }
++ break;
+ case twoDimVertR3:
+- a0 = codingLine[codingI++] = refLine[refI] + 3;
+- if (refLine[refI] < w) {
+- ++refI;
+- while (refLine[refI] <= a0 && refLine[refI] < w) {
+- refI += 2;
+- }
+- }
+- break;
+- case twoDimVertL1:
+- a0 = codingLine[codingI++] = refLine[refI] - 1;
+- if (refI > 0) {
+- --refI;
+- } else {
+- ++refI;
+- }
+- while (refLine[refI] <= a0 && refLine[refI] < w) {
+- refI += 2;
+- }
+- break;
+- case twoDimVertL2:
+- a0 = codingLine[codingI++] = refLine[refI] - 2;
+- if (refI > 0) {
+- --refI;
+- } else {
+- ++refI;
+- }
+- while (refLine[refI] <= a0 && refLine[refI] < w) {
+- refI += 2;
+- }
+- break;
++ mmrAddPixels(refLine[b1i] + 3, blackPixels, codingLine, &a0i, w);
++ blackPixels ^= 1;
++ if (codingLine[a0i] < w) {
++ ++b1i;
++ while (refLine[b1i] <= codingLine[a0i] && refLine[b1i] < w) {
++ b1i += 2;
++ }
++ }
++ break;
++ case twoDimVertR2:
++ mmrAddPixels(refLine[b1i] + 2, blackPixels, codingLine, &a0i, w);
++ blackPixels ^= 1;
++ if (codingLine[a0i] < w) {
++ ++b1i;
++ while (refLine[b1i] <= codingLine[a0i] && refLine[b1i] < w) {
++ b1i += 2;
++ }
++ }
++ break;
++ case twoDimVertR1:
++ mmrAddPixels(refLine[b1i] + 1, blackPixels, codingLine, &a0i, w);
++ blackPixels ^= 1;
++ if (codingLine[a0i] < w) {
++ ++b1i;
++ while (refLine[b1i] <= codingLine[a0i] && refLine[b1i] < w) {
++ b1i += 2;
++ }
++ }
++ break;
++ case twoDimVert0:
++ mmrAddPixels(refLine[b1i], blackPixels, codingLine, &a0i, w);
++ blackPixels ^= 1;
++ if (codingLine[a0i] < w) {
++ ++b1i;
++ while (refLine[b1i] <= codingLine[a0i] && refLine[b1i] < w) {
++ b1i += 2;
++ }
++ }
++ break;
+ case twoDimVertL3:
+- a0 = codingLine[codingI++] = refLine[refI] - 3;
+- if (refI > 0) {
+- --refI;
+- } else {
+- ++refI;
+- }
+- while (refLine[refI] <= a0 && refLine[refI] < w) {
+- refI += 2;
+- }
+- break;
++ mmrAddPixelsNeg(refLine[b1i] - 3, blackPixels, codingLine, &a0i, w);
++ blackPixels ^= 1;
++ if (codingLine[a0i] < w) {
++ if (b1i > 0) {
++ --b1i;
++ } else {
++ ++b1i;
++ }
++ while (refLine[b1i] <= codingLine[a0i] && refLine[b1i] < w) {
++ b1i += 2;
++ }
++ }
++ break;
++ case twoDimVertL2:
++ mmrAddPixelsNeg(refLine[b1i] - 2, blackPixels, codingLine, &a0i, w);
++ blackPixels ^= 1;
++ if (codingLine[a0i] < w) {
++ if (b1i > 0) {
++ --b1i;
++ } else {
++ ++b1i;
++ }
++ while (refLine[b1i] <= codingLine[a0i] && refLine[b1i] < w) {
++ b1i += 2;
++ }
++ }
++ break;
++ case twoDimVertL1:
++ mmrAddPixelsNeg(refLine[b1i] - 1, blackPixels, codingLine, &a0i, w);
++ blackPixels ^= 1;
++ if (codingLine[a0i] < w) {
++ if (b1i > 0) {
++ --b1i;
++ } else {
++ ++b1i;
++ }
++ while (refLine[b1i] <= codingLine[a0i] && refLine[b1i] < w) {
++ b1i += 2;
++ }
++ }
++ break;
++ case EOF:
++ mmrAddPixels(w, 0, codingLine, &a0i, w);
++ break;
+ default:
+ error(getPos(), "Illegal code in JBIG2 MMR bitmap data");
++ mmrAddPixels(w, 0, codingLine, &a0i, w);
+ break;
+ }
+- } while (a0 < w);
+- codingLine[codingI++] = w;
++ }
+
+ // convert the run lengths to a bitmap line
+ i = 0;
+- while (codingLine[i] < w) {
++ while (1) {
+ for (x = codingLine[i]; x < codingLine[i+1]; ++x) {
+ bitmap->setPixel(x, y);
+ }
++ if (codingLine[i+1] >= w || codingLine[i+2] >= w) {
++ break;
++ }
+ i += 2;
+ }
+ }
+@@ -2756,7 +2936,9 @@ JBIG2Bitmap *JBIG2Stream::readGenericBitmap(GBool mmr,
+ ltp = !ltp;
+ }
+ if (ltp) {
+- bitmap->duplicateRow(y, y-1);
++ if (y > 0) {
++ bitmap->duplicateRow(y, y-1);
++ }
+ continue;
+ }
+ }
+@@ -2959,8 +3141,8 @@ void JBIG2Stream::readGenericRefinementRegionSeg(Guint
+ return;
+ }
+ if (nRefSegs == 1) {
+- seg = findSegment(refSegs[0]);
+- if (seg->getType() != jbig2SegBitmap) {
++ if (!(seg = findSegment(refSegs[0])) ||
++ seg->getType() != jbig2SegBitmap) {
+ error(getPos(), "Bad bitmap reference in JBIG2 generic refinement
segment");
+ return;
+ }
+@@ -3054,6 +3236,10 @@ JBIG2Bitmap *JBIG2Stream::readGenericRefinementRegion(
+ tpgrCX2 = refBitmap->nextPixel(&tpgrCXPtr2);
+ tpgrCX2 = (tpgrCX2 << 1) | refBitmap->nextPixel(&tpgrCXPtr2);
+ tpgrCX2 = (tpgrCX2 << 1) | refBitmap->nextPixel(&tpgrCXPtr2);
++ } else {
++ tpgrCXPtr0.p = tpgrCXPtr1.p = tpgrCXPtr2.p = NULL; // make gcc happy
++ tpgrCXPtr0.shift = tpgrCXPtr1.shift = tpgrCXPtr2.shift = 0;
++ tpgrCXPtr0.x = tpgrCXPtr1.x = tpgrCXPtr2.x = 0;
+ }
+
+ for (x = 0; x < w; ++x) {
Index: patches/patch-kpdf_xpdf_xpdf_JBIG2Stream_h
===================================================================
RCS file: patches/patch-kpdf_xpdf_xpdf_JBIG2Stream_h
diff -N patches/patch-kpdf_xpdf_xpdf_JBIG2Stream_h
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ patches/patch-kpdf_xpdf_xpdf_JBIG2Stream_h 19 Apr 2009 21:16:49 -0000
@@ -0,0 +1,14 @@
+$OpenBSD$
+--- kpdf/xpdf/xpdf/JBIG2Stream.h.orig Mon May 14 09:39:30 2007
++++ kpdf/xpdf/xpdf/JBIG2Stream.h Sun Apr 19 22:28:20 2009
+@@ -78,6 +78,10 @@ class JBIG2Stream: public FilterStream { (private)
+ Guint *refSegs, Guint nRefSegs);
+ void readGenericRegionSeg(Guint segNum, GBool imm,
+ GBool lossless, Guint length);
++ void mmrAddPixels(int a1, int blackPixels,
++ int *codingLine, int *a0i, int w);
++ void mmrAddPixelsNeg(int a1, int blackPixels,
++ int *codingLine, int *a0i, int w);
+ JBIG2Bitmap *readGenericBitmap(GBool mmr, int w, int h,
+ int templ, GBool tpgdOn,
+ GBool useSkip, JBIG2Bitmap *skip,
