SOURCES: xpdf-3.02pl2.patch (NEW) - ftp://ftp.foolabs.com/pub/xpdf...
draenog
draenog at pld-linux.org
Fri Nov 9 14:51:49 CET 2007
Author: draenog Date: Fri Nov 9 13:51:48 2007 GMT
Module: SOURCES Tag: HEAD
---- Log message:
- ftp://ftp.foolabs.com/pub/xpdf/xpdf-3.02pl2.patch
---- Files affected:
SOURCES:
xpdf-3.02pl2.patch (NONE -> 1.1) (NEW)
---- Diffs:
================================================================
Index: SOURCES/xpdf-3.02pl2.patch
diff -u /dev/null SOURCES/xpdf-3.02pl2.patch:1.1
--- /dev/null Fri Nov 9 14:51:48 2007
+++ SOURCES/xpdf-3.02pl2.patch Fri Nov 9 14:51:43 2007
@@ -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];
+! }
+ }
<<Diff was trimmed, longer than 597 lines>>
More information about the pld-cvs-commit
mailing list