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Diffstat (limited to 'source/xap/xpdf/patches/xpdf-3.02pl2.patch')
| -rw-r--r-- | source/xap/xpdf/patches/xpdf-3.02pl2.patch | 823 |
1 files changed, 823 insertions, 0 deletions
diff --git a/source/xap/xpdf/patches/xpdf-3.02pl2.patch b/source/xap/xpdf/patches/xpdf-3.02pl2.patch new file mode 100644 index 000000000..ab9e3c671 --- /dev/null +++ b/source/xap/xpdf/patches/xpdf-3.02pl2.patch @@ -0,0 +1,823 @@ +diff -c -r xpdf-3.02pl1.orig/xpdf/Stream.cc xpdf-3.02/xpdf/Stream.cc +*** xpdf-3.02pl1.orig/xpdf/Stream.cc Thu Oct 25 15:47:38 2007 +--- xpdf-3.02/xpdf/Stream.cc Thu Oct 25 15:48:19 2007 +*************** +*** 1243,1265 **** + columns = columnsA; + if (columns < 1) { + columns = 1; +! } +! if (columns + 4 <= 0) { +! columns = INT_MAX - 4; + } + rows = rowsA; + endOfBlock = endOfBlockA; + black = blackA; +! refLine = (short *)gmallocn(columns + 3, sizeof(short)); +! codingLine = (short *)gmallocn(columns + 2, sizeof(short)); + + eof = gFalse; + row = 0; + nextLine2D = encoding < 0; + inputBits = 0; +! codingLine[0] = 0; +! codingLine[1] = refLine[2] = columns; +! a0 = 1; + + buf = EOF; + } +--- 1243,1268 ---- + columns = columnsA; + if (columns < 1) { + columns = 1; +! } else if (columns > INT_MAX - 2) { +! columns = INT_MAX - 2; + } + rows = rowsA; + endOfBlock = endOfBlockA; + black = blackA; +! // 0 <= codingLine[0] < codingLine[1] < ... < codingLine[n] = columns +! // ---> max codingLine size = columns + 1 +! // refLine has one extra guard entry at the end +! // ---> max refLine size = columns + 2 +! codingLine = (int *)gmallocn(columns + 1, sizeof(int)); +! refLine = (int *)gmallocn(columns + 2, sizeof(int)); + + eof = gFalse; + row = 0; + nextLine2D = encoding < 0; + inputBits = 0; +! codingLine[0] = columns; +! a0i = 0; +! outputBits = 0; + + buf = EOF; + } +*************** +*** 1278,1286 **** + row = 0; + nextLine2D = encoding < 0; + inputBits = 0; +! codingLine[0] = 0; +! codingLine[1] = columns; +! a0 = 1; + buf = EOF; + + // skip any initial zero bits and end-of-line marker, and get the 2D +--- 1281,1289 ---- + row = 0; + nextLine2D = encoding < 0; + inputBits = 0; +! codingLine[0] = columns; +! a0i = 0; +! outputBits = 0; + buf = EOF; + + // skip any initial zero bits and end-of-line marker, and get the 2D +*************** +*** 1297,1507 **** + } + } + + int CCITTFaxStream::lookChar() { + short code1, code2, code3; +! int a0New; +! GBool err, gotEOL; +! int ret; +! int bits, i; + +! // if at eof just return EOF +! if (eof && codingLine[a0] >= columns) { +! return EOF; + } + + // read the next row +! err = gFalse; +! if (codingLine[a0] >= columns) { + + // 2-D encoding + if (nextLine2D) { +- // state: +- // a0New = current position in coding line (0 <= a0New <= columns) +- // codingLine[a0] = last change in coding line +- // (black-to-white if a0 is even, +- // white-to-black if a0 is odd) +- // refLine[b1] = next change in reference line of opposite color +- // to a0 +- // invariants: +- // 0 <= codingLine[a0] <= a0New +- // <= refLine[b1] <= refLine[b1+1] <= columns +- // 0 <= a0 <= columns+1 +- // refLine[0] = 0 +- // refLine[n] = refLine[n+1] = columns +- // -- for some 1 <= n <= columns+1 +- // end condition: +- // 0 = codingLine[0] <= codingLine[1] < codingLine[2] < ... +- // < codingLine[n-1] < codingLine[n] = columns +- // -- where 1 <= n <= columns+1 + for (i = 0; codingLine[i] < columns; ++i) { + refLine[i] = codingLine[i]; + } +! refLine[i] = refLine[i + 1] = columns; +! b1 = 1; +! a0New = codingLine[a0 = 0] = 0; +! do { + code1 = getTwoDimCode(); + switch (code1) { + case twoDimPass: +! if (refLine[b1] < columns) { +! a0New = refLine[b1 + 1]; +! b1 += 2; + } + break; + case twoDimHoriz: +! if ((a0 & 1) == 0) { +! code1 = code2 = 0; + do { +! code1 += code3 = getWhiteCode(); + } while (code3 >= 64); + do { +! code2 += code3 = getBlackCode(); + } while (code3 >= 64); + } else { +- code1 = code2 = 0; + do { +! code1 += code3 = getBlackCode(); + } while (code3 >= 64); + do { +! code2 += code3 = getWhiteCode(); + } while (code3 >= 64); + } +! if (code1 > 0 || code2 > 0) { +! if (a0New + code1 <= columns) { +! codingLine[a0 + 1] = a0New + code1; +! } else { +! codingLine[a0 + 1] = columns; +! } +! ++a0; +! if (codingLine[a0] + code2 <= columns) { +! codingLine[a0 + 1] = codingLine[a0] + code2; +! } else { +! codingLine[a0 + 1] = columns; +! } +! ++a0; +! a0New = codingLine[a0]; +! while (refLine[b1] <= a0New && refLine[b1] < columns) { +! b1 += 2; + } + } + break; +! case twoDimVert0: +! if (refLine[b1] < columns) { +! a0New = codingLine[++a0] = refLine[b1]; +! ++b1; +! while (refLine[b1] <= a0New && refLine[b1] < columns) { +! b1 += 2; + } +- } else { +- a0New = codingLine[++a0] = columns; + } + break; + case twoDimVertR1: +! if (refLine[b1] + 1 < columns) { +! a0New = codingLine[++a0] = refLine[b1] + 1; +! ++b1; +! while (refLine[b1] <= a0New && refLine[b1] < columns) { +! b1 += 2; + } +- } else { +- a0New = codingLine[++a0] = columns; + } + break; +! case twoDimVertL1: +! if (refLine[b1] - 1 > a0New || (a0 == 0 && refLine[b1] == 1)) { +! a0New = codingLine[++a0] = refLine[b1] - 1; +! --b1; +! while (refLine[b1] <= a0New && refLine[b1] < columns) { +! b1 += 2; + } + } + break; +! case twoDimVertR2: +! if (refLine[b1] + 2 < columns) { +! a0New = codingLine[++a0] = refLine[b1] + 2; +! ++b1; +! while (refLine[b1] <= a0New && refLine[b1] < columns) { +! b1 += 2; + } +- } else { +- a0New = codingLine[++a0] = columns; + } + break; + case twoDimVertL2: +! if (refLine[b1] - 2 > a0New || (a0 == 0 && refLine[b1] == 2)) { +! a0New = codingLine[++a0] = refLine[b1] - 2; +! --b1; +! while (refLine[b1] <= a0New && refLine[b1] < columns) { +! b1 += 2; + } +! } +! break; +! case twoDimVertR3: +! if (refLine[b1] + 3 < columns) { +! a0New = codingLine[++a0] = refLine[b1] + 3; +! ++b1; +! while (refLine[b1] <= a0New && refLine[b1] < columns) { +! b1 += 2; + } +- } else { +- a0New = codingLine[++a0] = columns; + } + break; +! case twoDimVertL3: +! if (refLine[b1] - 3 > a0New || (a0 == 0 && refLine[b1] == 3)) { +! a0New = codingLine[++a0] = refLine[b1] - 3; +! --b1; +! while (refLine[b1] <= a0New && refLine[b1] < columns) { +! b1 += 2; + } + } + break; + case EOF: + eof = gTrue; +! codingLine[a0 = 0] = columns; +! return EOF; + default: + error(getPos(), "Bad 2D code %04x in CCITTFax stream", code1); + err = gTrue; + break; + } +! } while (codingLine[a0] < columns); + + // 1-D encoding + } else { +! codingLine[a0 = 0] = 0; +! while (1) { + code1 = 0; +! do { +! code1 += code3 = getWhiteCode(); +! } while (code3 >= 64); +! codingLine[a0+1] = codingLine[a0] + code1; +! ++a0; +! if (codingLine[a0] >= columns) { +! break; +! } +! code2 = 0; +! do { +! code2 += code3 = getBlackCode(); +! } while (code3 >= 64); +! codingLine[a0+1] = codingLine[a0] + code2; +! ++a0; +! if (codingLine[a0] >= columns) { +! break; + } + } + } + +- if (codingLine[a0] != columns) { +- error(getPos(), "CCITTFax row is wrong length (%d)", codingLine[a0]); +- // force the row to be the correct length +- while (codingLine[a0] > columns) { +- --a0; +- } +- codingLine[++a0] = columns; +- err = gTrue; +- } +- + // byte-align the row + if (byteAlign) { + inputBits &= ~7; +--- 1300,1529 ---- + } + } + ++ inline void CCITTFaxStream::addPixels(int a1, int blackPixels) { ++ if (a1 > codingLine[a0i]) { ++ if (a1 > columns) { ++ error(getPos(), "CCITTFax row is wrong length (%d)", a1); ++ err = gTrue; ++ a1 = columns; ++ } ++ if ((a0i & 1) ^ blackPixels) { ++ ++a0i; ++ } ++ codingLine[a0i] = a1; ++ } ++ } ++ ++ inline void CCITTFaxStream::addPixelsNeg(int a1, int blackPixels) { ++ if (a1 > codingLine[a0i]) { ++ if (a1 > columns) { ++ error(getPos(), "CCITTFax row is wrong length (%d)", a1); ++ err = gTrue; ++ a1 = columns; ++ } ++ if ((a0i & 1) ^ blackPixels) { ++ ++a0i; ++ } ++ codingLine[a0i] = a1; ++ } else if (a1 < codingLine[a0i]) { ++ if (a1 < 0) { ++ error(getPos(), "Invalid CCITTFax code"); ++ err = gTrue; ++ a1 = 0; ++ } ++ while (a0i > 0 && a1 <= codingLine[a0i - 1]) { ++ --a0i; ++ } ++ codingLine[a0i] = a1; ++ } ++ } ++ + int CCITTFaxStream::lookChar() { + short code1, code2, code3; +! int b1i, blackPixels, i, bits; +! GBool gotEOL; + +! if (buf != EOF) { +! return buf; + } + + // read the next row +! if (outputBits == 0) { +! +! // if at eof just return EOF +! if (eof) { +! return EOF; +! } +! +! err = gFalse; + + // 2-D encoding + if (nextLine2D) { + for (i = 0; codingLine[i] < columns; ++i) { + refLine[i] = codingLine[i]; + } +! refLine[i++] = columns; +! refLine[i] = columns; +! codingLine[0] = 0; +! a0i = 0; +! b1i = 0; +! blackPixels = 0; +! // invariant: +! // refLine[b1i-1] <= codingLine[a0i] < refLine[b1i] < refLine[b1i+1] +! // <= columns +! // exception at left edge: +! // codingLine[a0i = 0] = refLine[b1i = 0] = 0 is possible +! // exception at right edge: +! // refLine[b1i] = refLine[b1i+1] = columns is possible +! while (codingLine[a0i] < columns) { + code1 = getTwoDimCode(); + switch (code1) { + case twoDimPass: +! addPixels(refLine[b1i + 1], blackPixels); +! if (refLine[b1i + 1] < columns) { +! b1i += 2; + } + break; + case twoDimHoriz: +! code1 = code2 = 0; +! if (blackPixels) { + do { +! code1 += code3 = getBlackCode(); + } while (code3 >= 64); + do { +! code2 += code3 = getWhiteCode(); + } while (code3 >= 64); + } else { + do { +! code1 += code3 = getWhiteCode(); + } while (code3 >= 64); + do { +! code2 += code3 = getBlackCode(); + } while (code3 >= 64); + } +! addPixels(codingLine[a0i] + code1, blackPixels); +! if (codingLine[a0i] < columns) { +! addPixels(codingLine[a0i] + code2, blackPixels ^ 1); +! } +! while (refLine[b1i] <= codingLine[a0i] && refLine[b1i] < columns) { +! b1i += 2; +! } +! break; +! case twoDimVertR3: +! addPixels(refLine[b1i] + 3, blackPixels); +! blackPixels ^= 1; +! if (codingLine[a0i] < columns) { +! ++b1i; +! while (refLine[b1i] <= codingLine[a0i] && refLine[b1i] < columns) { +! b1i += 2; + } + } + break; +! case twoDimVertR2: +! addPixels(refLine[b1i] + 2, blackPixels); +! blackPixels ^= 1; +! if (codingLine[a0i] < columns) { +! ++b1i; +! while (refLine[b1i] <= codingLine[a0i] && refLine[b1i] < columns) { +! b1i += 2; + } + } + break; + case twoDimVertR1: +! addPixels(refLine[b1i] + 1, blackPixels); +! blackPixels ^= 1; +! if (codingLine[a0i] < columns) { +! ++b1i; +! while (refLine[b1i] <= codingLine[a0i] && refLine[b1i] < columns) { +! b1i += 2; + } + } + break; +! case twoDimVert0: +! addPixels(refLine[b1i], blackPixels); +! blackPixels ^= 1; +! if (codingLine[a0i] < columns) { +! ++b1i; +! while (refLine[b1i] <= codingLine[a0i] && refLine[b1i] < columns) { +! b1i += 2; + } + } + break; +! case twoDimVertL3: +! addPixelsNeg(refLine[b1i] - 3, blackPixels); +! blackPixels ^= 1; +! if (codingLine[a0i] < columns) { +! if (b1i > 0) { +! --b1i; +! } else { +! ++b1i; +! } +! while (refLine[b1i] <= codingLine[a0i] && refLine[b1i] < columns) { +! b1i += 2; + } + } + break; + case twoDimVertL2: +! addPixelsNeg(refLine[b1i] - 2, blackPixels); +! blackPixels ^= 1; +! if (codingLine[a0i] < columns) { +! if (b1i > 0) { +! --b1i; +! } else { +! ++b1i; + } +! while (refLine[b1i] <= codingLine[a0i] && refLine[b1i] < columns) { +! b1i += 2; + } + } + break; +! case twoDimVertL1: +! addPixelsNeg(refLine[b1i] - 1, blackPixels); +! blackPixels ^= 1; +! if (codingLine[a0i] < columns) { +! if (b1i > 0) { +! --b1i; +! } else { +! ++b1i; +! } +! while (refLine[b1i] <= codingLine[a0i] && refLine[b1i] < columns) { +! b1i += 2; + } + } + break; + case EOF: ++ addPixels(columns, 0); + eof = gTrue; +! break; + default: + error(getPos(), "Bad 2D code %04x in CCITTFax stream", code1); ++ addPixels(columns, 0); + err = gTrue; + break; + } +! } + + // 1-D encoding + } else { +! codingLine[0] = 0; +! a0i = 0; +! blackPixels = 0; +! while (codingLine[a0i] < columns) { + code1 = 0; +! if (blackPixels) { +! do { +! code1 += code3 = getBlackCode(); +! } while (code3 >= 64); +! } else { +! do { +! code1 += code3 = getWhiteCode(); +! } while (code3 >= 64); + } ++ addPixels(codingLine[a0i] + code1, blackPixels); ++ blackPixels ^= 1; + } + } + + // byte-align the row + if (byteAlign) { + inputBits &= ~7; +*************** +*** 1560,1573 **** + // this if we know the stream contains end-of-line markers because + // the "just plow on" technique tends to work better otherwise + } else if (err && endOfLine) { +! do { + if (code1 == EOF) { + eof = gTrue; + return EOF; + } + eatBits(1); +! code1 = lookBits(13); +! } while ((code1 >> 1) != 0x001); + eatBits(12); + if (encoding > 0) { + eatBits(1); +--- 1582,1598 ---- + // this if we know the stream contains end-of-line markers because + // the "just plow on" technique tends to work better otherwise + } else if (err && endOfLine) { +! while (1) { +! code1 = lookBits(13); + if (code1 == EOF) { + eof = gTrue; + return EOF; + } ++ if ((code1 >> 1) == 0x001) { ++ break; ++ } + eatBits(1); +! } + eatBits(12); + if (encoding > 0) { + eatBits(1); +*************** +*** 1575,1585 **** + } + } + +! a0 = 0; +! outputBits = codingLine[1] - codingLine[0]; +! if (outputBits == 0) { +! a0 = 1; +! outputBits = codingLine[2] - codingLine[1]; + } + + ++row; +--- 1600,1610 ---- + } + } + +! // set up for output +! if (codingLine[0] > 0) { +! outputBits = codingLine[a0i = 0]; +! } else { +! outputBits = codingLine[a0i = 1]; + } + + ++row; +*************** +*** 1587,1625 **** + + // get a byte + if (outputBits >= 8) { +! ret = ((a0 & 1) == 0) ? 0xff : 0x00; +! if ((outputBits -= 8) == 0) { +! ++a0; +! if (codingLine[a0] < columns) { +! outputBits = codingLine[a0 + 1] - codingLine[a0]; +! } + } + } else { + bits = 8; +! ret = 0; + do { + if (outputBits > bits) { +! i = bits; +! bits = 0; +! if ((a0 & 1) == 0) { +! ret |= 0xff >> (8 - i); + } +! outputBits -= i; + } else { +! i = outputBits; +! bits -= outputBits; +! if ((a0 & 1) == 0) { +! ret |= (0xff >> (8 - i)) << bits; + } + outputBits = 0; +! ++a0; +! if (codingLine[a0] < columns) { +! outputBits = codingLine[a0 + 1] - codingLine[a0]; + } + } +! } while (bits > 0 && codingLine[a0] < columns); + } +- buf = black ? (ret ^ 0xff) : ret; + return buf; + } + +--- 1612,1654 ---- + + // get a byte + if (outputBits >= 8) { +! buf = (a0i & 1) ? 0x00 : 0xff; +! outputBits -= 8; +! if (outputBits == 0 && codingLine[a0i] < columns) { +! ++a0i; +! outputBits = codingLine[a0i] - codingLine[a0i - 1]; + } + } else { + bits = 8; +! buf = 0; + do { + if (outputBits > bits) { +! buf <<= bits; +! if (!(a0i & 1)) { +! buf |= 0xff >> (8 - bits); + } +! outputBits -= bits; +! bits = 0; + } else { +! buf <<= outputBits; +! if (!(a0i & 1)) { +! buf |= 0xff >> (8 - outputBits); + } ++ bits -= outputBits; + outputBits = 0; +! if (codingLine[a0i] < columns) { +! ++a0i; +! outputBits = codingLine[a0i] - codingLine[a0i - 1]; +! } else if (bits > 0) { +! buf <<= bits; +! bits = 0; + } + } +! } while (bits); +! } +! if (black) { +! buf ^= 0xff; + } + return buf; + } + +*************** +*** 1661,1666 **** +--- 1690,1698 ---- + code = 0; // make gcc happy + if (endOfBlock) { + code = lookBits(12); ++ if (code == EOF) { ++ return 1; ++ } + if ((code >> 5) == 0) { + p = &whiteTab1[code]; + } else { +*************** +*** 1673,1678 **** +--- 1705,1713 ---- + } else { + for (n = 1; n <= 9; ++n) { + code = lookBits(n); ++ if (code == EOF) { ++ return 1; ++ } + if (n < 9) { + code <<= 9 - n; + } +*************** +*** 1684,1689 **** +--- 1719,1727 ---- + } + for (n = 11; n <= 12; ++n) { + code = lookBits(n); ++ if (code == EOF) { ++ return 1; ++ } + if (n < 12) { + code <<= 12 - n; + } +*************** +*** 1709,1717 **** + code = 0; // make gcc happy + if (endOfBlock) { + code = lookBits(13); + if ((code >> 7) == 0) { + p = &blackTab1[code]; +! } else if ((code >> 9) == 0) { + p = &blackTab2[(code >> 1) - 64]; + } else { + p = &blackTab3[code >> 7]; +--- 1747,1758 ---- + code = 0; // make gcc happy + if (endOfBlock) { + code = lookBits(13); ++ if (code == EOF) { ++ return 1; ++ } + if ((code >> 7) == 0) { + p = &blackTab1[code]; +! } else if ((code >> 9) == 0 && (code >> 7) != 0) { + p = &blackTab2[(code >> 1) - 64]; + } else { + p = &blackTab3[code >> 7]; +*************** +*** 1723,1728 **** +--- 1764,1772 ---- + } else { + for (n = 2; n <= 6; ++n) { + code = lookBits(n); ++ if (code == EOF) { ++ return 1; ++ } + if (n < 6) { + code <<= 6 - n; + } +*************** +*** 1734,1739 **** +--- 1778,1786 ---- + } + for (n = 7; n <= 12; ++n) { + code = lookBits(n); ++ if (code == EOF) { ++ return 1; ++ } + if (n < 12) { + code <<= 12 - n; + } +*************** +*** 1747,1752 **** +--- 1794,1802 ---- + } + for (n = 10; n <= 13; ++n) { + code = lookBits(n); ++ if (code == EOF) { ++ return 1; ++ } + if (n < 13) { + code <<= 13 - n; + } +*************** +*** 1961,1966 **** +--- 2011,2022 ---- + // allocate a buffer for the whole image + bufWidth = ((width + mcuWidth - 1) / mcuWidth) * mcuWidth; + bufHeight = ((height + mcuHeight - 1) / mcuHeight) * mcuHeight; ++ if (bufWidth <= 0 || bufHeight <= 0 || ++ bufWidth > INT_MAX / bufWidth / (int)sizeof(int)) { ++ error(getPos(), "Invalid image size in DCT stream"); ++ y = height; ++ return; ++ } + for (i = 0; i < numComps; ++i) { + frameBuf[i] = (int *)gmallocn(bufWidth * bufHeight, sizeof(int)); + memset(frameBuf[i], 0, bufWidth * bufHeight * sizeof(int)); +*************** +*** 3036,3041 **** +--- 3092,3102 ---- + } + scanInfo.firstCoeff = str->getChar(); + scanInfo.lastCoeff = str->getChar(); ++ if (scanInfo.firstCoeff < 0 || scanInfo.lastCoeff > 63 || ++ scanInfo.firstCoeff > scanInfo.lastCoeff) { ++ error(getPos(), "Bad DCT coefficient numbers in scan info block"); ++ return gFalse; ++ } + c = str->getChar(); + scanInfo.ah = (c >> 4) & 0x0f; + scanInfo.al = c & 0x0f; +diff -c -r xpdf-3.02pl1.orig/xpdf/Stream.h xpdf-3.02/xpdf/Stream.h +*** xpdf-3.02pl1.orig/xpdf/Stream.h Tue Feb 27 14:05:52 2007 +--- xpdf-3.02/xpdf/Stream.h Thu Oct 25 15:48:15 2007 +*************** +*** 528,540 **** + int row; // current row + int inputBuf; // input buffer + int inputBits; // number of bits in input buffer +! short *refLine; // reference line changing elements +! int b1; // index into refLine +! short *codingLine; // coding line changing elements +! int a0; // index into codingLine + int outputBits; // remaining ouput bits + int buf; // character buffer + + short getTwoDimCode(); + short getWhiteCode(); + short getBlackCode(); +--- 528,542 ---- + int row; // current row + int inputBuf; // input buffer + int inputBits; // number of bits in input buffer +! int *codingLine; // coding line changing elements +! int *refLine; // reference line changing elements +! int a0i; // index into codingLine +! GBool err; // error on current line + int outputBits; // remaining ouput bits + int buf; // character buffer + ++ void addPixels(int a1, int black); ++ void addPixelsNeg(int a1, int black); + short getTwoDimCode(); + short getWhiteCode(); + short getBlackCode(); |