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-rw-r--r--pdf/xpdf/XOutputDev.cc544
1 files changed, 385 insertions, 159 deletions
diff --git a/pdf/xpdf/XOutputDev.cc b/pdf/xpdf/XOutputDev.cc
index 2100355..a156b55 100644
--- a/pdf/xpdf/XOutputDev.cc
+++ b/pdf/xpdf/XOutputDev.cc
@@ -624,18 +624,20 @@ XOutputFontCache::XOutputFontCache(Display *displayA, Guint depthA,
xOut = xOutA;
#if HAVE_T1LIB_H
- t1Engine = NULL;
t1libControl = t1libControlA;
+ t1Engine = NULL;
+ t1FontFiles = NULL;
#endif
#if FREETYPE2 && (HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H)
+ freetypeControl = freetypeControlA;
ftEngine = NULL;
+ ftFontFiles = NULL;
#endif
#if !FREETYPE2 && (HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H)
- ttEngine = NULL;
-#endif
-#if HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H
freetypeControl = freetypeControlA;
+ ttEngine = NULL;
+ ttFontFiles = NULL;
#endif
clear();
@@ -718,25 +720,37 @@ void XOutputFontCache::delFonts() {
#if HAVE_T1LIB_H
// delete Type 1 font files
- deleteGList(t1FontFiles, XOutputT1FontFile);
+ if (t1FontFiles) {
+ deleteGList(t1FontFiles, XOutputT1FontFile);
+ t1FontFiles = NULL;
+ }
if (t1Engine) {
delete t1Engine;
+ t1Engine = NULL;
}
#endif
#if FREETYPE2 && (HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H)
// delete FreeType font files
- deleteGList(ftFontFiles, XOutputFTFontFile);
+ if (ftFontFiles) {
+ deleteGList(ftFontFiles, XOutputFTFontFile);
+ ftFontFiles = NULL;
+ }
if (ftEngine) {
delete ftEngine;
+ ftEngine = NULL;
}
#endif
#if !FREETYPE2 && (HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H)
// delete TrueType fonts
- deleteGList(ttFontFiles, XOutputTTFontFile);
+ if (ttFontFiles) {
+ deleteGList(ttFontFiles, XOutputTTFontFile);
+ ttFontFiles = NULL;
+ }
if (ttEngine) {
delete ttEngine;
+ ttEngine = NULL;
}
#endif
}
@@ -1088,12 +1102,16 @@ XOutputFont *XOutputFontCache::tryGetT1Font(XRef *xref,
if (gfxFont->getType() == fontType1C) {
if (!(fontBuf = gfxFont->readEmbFontFile(xref, &fontLen))) {
fclose(f);
+ unlink(fileName->getCString());
+ delete fileName;
return NULL;
}
ff = new Type1CFontFile(fontBuf, fontLen);
if (!ff->isOk()) {
delete ff;
gfree(fontBuf);
+ unlink(fileName->getCString());
+ delete fileName;
return NULL;
}
ff->convertToType1(outputToFile, f);
@@ -1235,6 +1253,8 @@ XOutputFont *XOutputFontCache::tryGetFTFont(XRef *xref,
gfxFont->getType() == fontCIDType2) {
if (!(fontBuf = gfxFont->readEmbFontFile(xref, &fontLen))) {
fclose(f);
+ unlink(fileName->getCString());
+ delete fileName;
return NULL;
}
ff = new TrueTypeFontFile(fontBuf, fontLen);
@@ -1304,6 +1324,11 @@ XOutputFont *XOutputFontCache::tryGetFTFontFromFile(XRef *xref,
Ref *id;
FTFontFile *fontFile;
XOutputFont *font;
+ char *buf;
+ int len;
+ FILE *f;
+ TrueTypeFontFile *ff;
+ Gushort *codeToGID;
// create the FreeType font file
if (gfxFont->isCIDFont()) {
@@ -1316,10 +1341,27 @@ XOutputFont *XOutputFontCache::tryGetFTFontFromFile(XRef *xref,
fontFile = new FTFontFile(ftEngine, fileName->getCString(), embedded);
}
} else {
+ if (!(f = fopen(fileName->getCString(), "rb"))) {
+ return NULL;
+ }
+ fseek(f, 0, SEEK_END);
+ len = (int)ftell(f);
+ fseek(f, 0, SEEK_SET);
+ buf = (char *)gmalloc(len);
+ if ((int)fread(buf, 1, len, f) != len) {
+ gfree(buf);
+ fclose(f);
+ return NULL;
+ }
+ fclose(f);
+ ff = new TrueTypeFontFile(buf, len);
+ codeToGID = ((Gfx8BitFont *)gfxFont)->getCodeToGIDMap(ff);
fontFile = new FTFontFile(ftEngine, fileName->getCString(),
((Gfx8BitFont *)gfxFont)->getEncoding(),
- ((Gfx8BitFont *)gfxFont)->getHasEncoding(),
- ((Gfx8BitFont *)gfxFont)->isSymbolic());
+ codeToGID);
+ gfree(codeToGID);
+ delete ff;
+ gfree(buf);
}
if (!fontFile->isOk()) {
error(-1, "Couldn't create FreeType font from '%s'",
@@ -1784,6 +1826,9 @@ XOutputDev::XOutputDev(Display *displayA, int screenNumA,
nT3Fonts = 0;
t3GlyphStack = NULL;
+ // no text outline clipping path
+ textClipPath = NULL;
+
// empty state stack
save = NULL;
@@ -1877,32 +1922,61 @@ void XOutputDev::endPage() {
}
void XOutputDev::drawLink(Link *link, Catalog *catalog) {
- double x1, y1, x2, y2, w;
+ double x1, y1, x2, y2;
+ LinkBorderStyle *borderStyle;
GfxRGB rgb;
+ double *dash;
+ char dashList[20];
+ int dashLength;
XPoint points[5];
- int x, y;
+ int x, y, i;
- link->getBorder(&x1, &y1, &x2, &y2, &w);
- if (w > 0) {
- rgb.r = 0;
- rgb.g = 0;
- rgb.b = 1;
+ link->getRect(&x1, &y1, &x2, &y2);
+ borderStyle = link->getBorderStyle();
+ if (borderStyle->getWidth() > 0) {
+ borderStyle->getColor(&rgb.r, &rgb.g, &rgb.b);
XSetForeground(display, strokeGC, findColor(&rgb));
- XSetLineAttributes(display, strokeGC, xoutRound(w),
- LineSolid, CapRound, JoinRound);
- cvtUserToDev(x1, y1, &x, &y);
- points[0].x = points[4].x = x;
- points[0].y = points[4].y = y;
- cvtUserToDev(x2, y1, &x, &y);
- points[1].x = x;
- points[1].y = y;
- cvtUserToDev(x2, y2, &x, &y);
- points[2].x = x;
- points[2].y = y;
- cvtUserToDev(x1, y2, &x, &y);
- points[3].x = x;
- points[3].y = y;
- XDrawLines(display, pixmap, strokeGC, points, 5, CoordModeOrigin);
+ borderStyle->getDash(&dash, &dashLength);
+ if (borderStyle->getType() == linkBorderDashed && dashLength > 0) {
+ if (dashLength > 20) {
+ dashLength = 20;
+ }
+ for (i = 0; i < dashLength; ++i) {
+ if ((dashList[i] = xoutRound(dash[i])) == 0) {
+ dashList[i] = 1;
+ }
+ }
+ XSetLineAttributes(display, strokeGC, xoutRound(borderStyle->getWidth()),
+ LineOnOffDash, CapButt, JoinMiter);
+ XSetDashes(display, strokeGC, 0, dashList, dashLength);
+ } else {
+ XSetLineAttributes(display, strokeGC, xoutRound(borderStyle->getWidth()),
+ LineSolid, CapButt, JoinMiter);
+ }
+ if (borderStyle->getType() == linkBorderUnderlined) {
+ cvtUserToDev(x1, y1, &x, &y);
+ points[0].x = x;
+ points[0].y = y;
+ cvtUserToDev(x2, y1, &x, &y);
+ points[1].x = x;
+ points[1].y = y;
+ XDrawLine(display, pixmap, strokeGC, points[0].x, points[0].y,
+ points[1].x, points[1].y);
+ } else {
+ cvtUserToDev(x1, y1, &x, &y);
+ points[0].x = points[4].x = x;
+ points[0].y = points[4].y = y;
+ cvtUserToDev(x2, y1, &x, &y);
+ points[1].x = x;
+ points[1].y = y;
+ cvtUserToDev(x2, y2, &x, &y);
+ points[2].x = x;
+ points[2].y = y;
+ cvtUserToDev(x1, y2, &x, &y);
+ points[3].x = x;
+ points[3].y = y;
+ XDrawLines(display, pixmap, strokeGC, points, 5, CoordModeOrigin);
+ }
}
}
@@ -2100,7 +2174,8 @@ void XOutputDev::stroke(GfxState *state) {
int n, size, numPoints, i, j;
// transform points
- n = convertPath(state, &points, &size, &numPoints, &lengths, gFalse);
+ n = convertPath(state, state->getPath(),
+ &points, &size, &numPoints, &lengths, gFalse);
// draw each subpath
j = 0;
@@ -2143,7 +2218,8 @@ void XOutputDev::doFill(GfxState *state, int rule) {
XSetFillRule(display, fillGC, rule);
// transform points, build separate polygons
- n = convertPath(state, &points, &size, &numPoints, &lengths, gTrue);
+ n = convertPath(state, state->getPath(),
+ &points, &size, &numPoints, &lengths, gTrue);
// fill them
j = 0;
@@ -2165,41 +2241,109 @@ void XOutputDev::doFill(GfxState *state, int rule) {
}
void XOutputDev::clip(GfxState *state) {
- doClip(state, WindingRule);
+ doClip(state, state->getPath(), WindingRule);
}
void XOutputDev::eoClip(GfxState *state) {
- doClip(state, EvenOddRule);
+ doClip(state, state->getPath(), EvenOddRule);
}
-void XOutputDev::doClip(GfxState *state, int rule) {
+void XOutputDev::doClip(GfxState *state, GfxPath *path, int rule) {
+ GfxSubpath *subpath;
Region region, region2;
+ XPoint rect[5];
XPoint *points;
int *lengths;
+ double x0, y0, x1, y1, x2, y2, x3, y3;
+ GBool gotRect;
int n, size, numPoints, i, j;
- // transform points, build separate polygons
- n = convertPath(state, &points, &size, &numPoints, &lengths, gTrue);
-
- // construct union of subpath regions
- // (XPolygonRegion chokes if there aren't at least three points --
- // this happens if the PDF file does moveto/closepath/clip, which
- // sets an empty clipping region)
- if (lengths[0] > 2) {
- region = XPolygonRegion(points, lengths[0], rule);
- } else {
- region = XCreateRegion();
+ // special case for rectangular clipping paths -- this is a common
+ // case, and we want to make sure not to clip an extra pixel on the
+ // right and bottom edges due to the difference between the PDF and
+ // X rendering models
+ gotRect = gFalse;
+ if (path->getNumSubpaths() == 1) {
+ subpath = path->getSubpath(0);
+ if ((subpath->isClosed() && subpath->getNumPoints() == 5) ||
+ (!subpath->isClosed() && subpath->getNumPoints() == 4)) {
+ state->transform(subpath->getX(0), subpath->getY(0), &x0, &y0);
+ state->transform(subpath->getX(1), subpath->getY(1), &x1, &y1);
+ state->transform(subpath->getX(2), subpath->getY(2), &x2, &y2);
+ state->transform(subpath->getX(3), subpath->getY(3), &x3, &y3);
+ if (fabs(x0-x1) < 1 && fabs(x2-x3) < 1 &&
+ fabs(y0-y3) < 1 && fabs(y1-y2) < 1) {
+ if (x0 < x2) {
+ rect[0].x = rect[1].x = rect[4].x = (int)floor(x0);
+ rect[2].x = rect[3].x = (int)floor(x2) + 1;
+ } else {
+ rect[0].x = rect[1].x = rect[4].x = (int)floor(x0) + 1;
+ rect[2].x = rect[3].x = (int)floor(x2);
+ }
+ if (y0 < y1) {
+ rect[0].y = rect[3].y = rect[4].y = (int)floor(y0);
+ rect[1].y = rect[2].y = (int)floor(y1) + 1;
+ } else {
+ rect[0].y = rect[3].y = rect[4].y = (int)floor(y0) + 1;
+ rect[1].y = rect[2].y = (int)floor(y1);
+ }
+ gotRect = gTrue;
+ } else if (fabs(x0-x3) < 1 && fabs(x1-x2) < 1 &&
+ fabs(y0-y1) < 1 && fabs(y2-y3) < 1) {
+ if (x0 < x1) {
+ rect[0].x = rect[3].x = rect[4].x = (int)floor(x0);
+ rect[1].x = rect[2].x = (int)floor(x1) + 1;
+ } else {
+ rect[0].x = rect[3].x = rect[4].x = (int)floor(x0) + 1;
+ rect[1].x = rect[2].x = (int)floor(x1);
+ }
+ if (y0 < y2) {
+ rect[0].y = rect[1].y = rect[4].y = (int)floor(y0);
+ rect[2].y = rect[3].y = (int)floor(y2) + 1;
+ } else {
+ rect[0].y = rect[1].y = rect[4].y = (int)floor(y0) + 1;
+ rect[2].y = rect[3].y = (int)floor(y2);
+ }
+ gotRect = gTrue;
+ }
+ }
}
- j = lengths[0] + 1;
- for (i = 1; i < n; ++i) {
- if (lengths[i] > 2) {
- region2 = XPolygonRegion(points + j, lengths[i], rule);
+
+ if (gotRect) {
+ region = XPolygonRegion(rect, 5, EvenOddRule);
+
+ } else {
+ // transform points, build separate polygons
+ n = convertPath(state, path, &points, &size, &numPoints, &lengths, gTrue);
+
+ // construct union of subpath regions
+ // (XPolygonRegion chokes if there aren't at least three points --
+ // this happens if the PDF file does moveto/closepath/clip, which
+ // sets an empty clipping region)
+ if (lengths[0] > 2) {
+ region = XPolygonRegion(points, lengths[0], rule);
} else {
- region2 = XCreateRegion();
+ region = XCreateRegion();
+ }
+ j = lengths[0] + 1;
+ for (i = 1; i < n; ++i) {
+ if (lengths[i] > 2) {
+ region2 = XPolygonRegion(points + j, lengths[i], rule);
+ } else {
+ region2 = XCreateRegion();
+ }
+ XUnionRegion(region2, region, region);
+ XDestroyRegion(region2);
+ j += lengths[i] + 1;
+ }
+
+ // free points and lengths arrays
+ if (points != tmpPoints) {
+ gfree(points);
+ }
+ if (lengths != tmpLengths) {
+ gfree(lengths);
}
- XUnionRegion(region2, region, region);
- XDestroyRegion(region2);
- j += lengths[i] + 1;
}
// intersect region with clipping region
@@ -2207,12 +2351,6 @@ void XOutputDev::doClip(GfxState *state, int rule) {
XDestroyRegion(region);
XSetRegion(display, strokeGC, clipRegion);
XSetRegion(display, fillGC, clipRegion);
-
- // free points and lengths arrays
- if (points != tmpPoints)
- gfree(points);
- if (lengths != tmpLengths)
- gfree(lengths);
}
//
@@ -2224,15 +2362,14 @@ void XOutputDev::doClip(GfxState *state, int rule) {
// Then it connects subaths within a single compound polygon to a single
// point so that X can fill the polygon (sort of).
//
-int XOutputDev::convertPath(GfxState *state, XPoint **points, int *size,
+int XOutputDev::convertPath(GfxState *state, GfxPath *path,
+ XPoint **points, int *size,
int *numPoints, int **lengths, GBool fillHack) {
- GfxPath *path;
BoundingRect *rects;
BoundingRect rect;
int n, i, ii, j, k, k0;
// get path and number of subpaths
- path = state->getPath();
n = path->getNumSubpaths();
// allocate lengths array
@@ -2294,15 +2431,15 @@ int XOutputDev::convertPath(GfxState *state, XPoint **points, int *size,
// kludge: munge any points that are *way* out of bounds - these can
// crash certain (buggy) X servers
for (i = 0; i < *numPoints; ++i) {
- if ((*points)[i].x < -pixmapW) {
- (*points)[i].x = -pixmapW;
- } else if ((*points)[i].x > 2 * pixmapW) {
- (*points)[i].x = 2 * pixmapW;
+ if ((*points)[i].x < -4 * pixmapW) {
+ (*points)[i].x = -4 * pixmapW;
+ } else if ((*points)[i].x > 4 * pixmapW) {
+ (*points)[i].x = 4 * pixmapW;
}
if ((*points)[i].y < -pixmapH) {
- (*points)[i].y = -pixmapH;
- } else if ((*points)[i].y > 2 * pixmapH) {
- (*points)[i].y = 2 * pixmapH;
+ (*points)[i].y = -4 * pixmapH;
+ } else if ((*points)[i].y > 4 * pixmapH) {
+ (*points)[i].y = 4 * pixmapH;
}
}
@@ -2528,7 +2665,7 @@ void XOutputDev::drawChar(GfxState *state, double x, double y,
// check for invisible text -- this is used by Acrobat Capture
render = state->getRender();
- if ((render & 3) == 3) {
+ if (render == 3) {
return;
}
@@ -2577,11 +2714,22 @@ void XOutputDev::drawChar(GfxState *state, double x, double y,
}
}
-#if 0 //~ unimplemented: clipping to char path
// clip
if (render & 4) {
+ if (font->hasGetCharPath()) {
+ saveCurX = state->getCurX();
+ saveCurY = state->getCurY();
+ font->getCharPath(state, code, u, uLen);
+ state->getPath()->offset(x1, y1);
+ if (textClipPath) {
+ textClipPath->append(state->getPath());
+ } else {
+ textClipPath = state->getPath()->copy();
+ }
+ state->clearPath();
+ state->moveTo(saveCurX, saveCurY);
+ }
}
-#endif
}
GBool XOutputDev::beginType3Char(GfxState *state,
@@ -2991,7 +3139,23 @@ void XOutputDev::type3D1(GfxState *state, double wx, double wy,
-t3GlyphStack->cache->glyphX, -t3GlyphStack->cache->glyphY);
}
-inline Gulong XOutputDev::findColor(GfxRGB *x, GfxRGB *err) {
+void XOutputDev::endTextObject(GfxState *state) {
+ double *ctm;
+ double saveCTM[6];
+
+ if (textClipPath) {
+ ctm = state->getCTM();
+ memcpy(saveCTM, ctm, 6 * sizeof(double));
+ state->setCTM(1, 0, 0, 1, 0, 0);
+ doClip(state, textClipPath, WindingRule);
+ state->setCTM(saveCTM[0], saveCTM[1], saveCTM[2], saveCTM[3],
+ saveCTM[4], saveCTM[5]);
+ delete textClipPath;
+ textClipPath = NULL;
+ }
+}
+
+inline Gulong XOutputDev::findColor(GfxRGB *x, GfxRGB *actual) {
double gray;
int r, g, b;
Gulong pixel;
@@ -3003,30 +3167,26 @@ inline Gulong XOutputDev::findColor(GfxRGB *x, GfxRGB *err) {
pixel = ((Gulong)r << rShift) +
((Gulong)g << gShift) +
((Gulong)b << bShift);
- err->r = x->r - (double)r / rMul;
- err->g = x->g - (double)g / gMul;
- err->b = x->b - (double)b / bMul;
+ actual->r = (double)r / rMul;
+ actual->g = (double)g / gMul;
+ actual->b = (double)b / bMul;
} else if (numColors == 1) {
gray = 0.299 * x->r + 0.587 * x->g + 0.114 * x->b;
if (gray < 0.5) {
pixel = colors[0];
- err->r = x->r;
- err->g = x->g;
- err->b = x->b;
+ actual->r = actual->g = actual->b = 0;
} else {
pixel = colors[1];
- err->r = x->r - 1;
- err->g = x->g - 1;
- err->b = x->b - 1;
+ actual->r = actual->g = actual->b = 1;
}
} else {
r = xoutRound(x->r * (numColors - 1));
g = xoutRound(x->g * (numColors - 1));
b = xoutRound(x->b * (numColors - 1));
pixel = colors[(r * numColors + g) * numColors + b];
- err->r = x->r - (double)r / (numColors - 1);
- err->g = x->g - (double)g / (numColors - 1);
- err->b = x->b - (double)b / (numColors - 1);
+ actual->r = (double)r / (numColors - 1);
+ actual->g = (double)g / (numColors - 1);
+ actual->b = (double)b / (numColors - 1);
}
return pixel;
}
@@ -3380,14 +3540,14 @@ void XOutputDev::drawImage(GfxState *state, Object *ref, Stream *str,
int yp, yq, yt, yStep, lastYStep;
int xp, xq, xt, xStep, xSrc;
GfxRGB *pixBuf;
- Guchar *alphaBuf;
+ Guchar *pixBuf1, *alphaBuf;
Guchar pixBuf2[gfxColorMaxComps];
- GfxRGB color2, err, errRight;
- GfxRGB *errDown;
+ GfxRGB color2, color3, actual, err, errRight;
+ GfxRGB *errDown0, *errDown1, *errDownTmp;
double r0, g0, b0, alpha, mul;
Gulong pix;
GfxRGB *p;
- Guchar *q, *p2;
+ Guchar *q, *p1, *p2;
GBool oneBitMode;
GfxRGB oneBitRGB[2];
int x, y, x1, y1, x2, y2;
@@ -3397,6 +3557,7 @@ void XOutputDev::drawImage(GfxState *state, Object *ref, Stream *str,
nComps = colorMap->getNumPixelComps();
nVals = width * nComps;
nBits = colorMap->getBits();
+ oneBitMode = nComps == 1 && nBits == 1 && !maskColors;
dither = nComps > 1 || nBits > 1;
// get CTM, check for singular matrix
@@ -3533,7 +3694,13 @@ void XOutputDev::drawImage(GfxState *state, Object *ref, Stream *str,
xq = width % scaledWidth;
// allocate pixel buffer
- pixBuf = (GfxRGB *)gmalloc((yp + 1) * width * sizeof(GfxRGB));
+ if (oneBitMode) {
+ pixBuf1 = (Guchar *)gmalloc((yp + 1) * width * sizeof(Guchar));
+ pixBuf = NULL;
+ } else {
+ pixBuf = (GfxRGB *)gmalloc((yp + 1) * width * sizeof(GfxRGB));
+ pixBuf1 = NULL;
+ }
if (maskColors) {
alphaBuf = (Guchar *)gmalloc((yp + 1) * width * sizeof(Guchar));
} else {
@@ -3556,16 +3723,18 @@ void XOutputDev::drawImage(GfxState *state, Object *ref, Stream *str,
// allocate error diffusion accumulators
if (dither) {
- errDown = (GfxRGB *)gmalloc(bw * sizeof(GfxRGB));
- for (j = 0; j < bw; ++j) {
- errDown[j].r = errDown[j].g = errDown[j].b = 0;
+ errDown0 = (GfxRGB *)gmalloc((scaledWidth + 2) * sizeof(GfxRGB));
+ errDown1 = (GfxRGB *)gmalloc((scaledWidth + 2) * sizeof(GfxRGB));
+ for (j = 0; j < scaledWidth + 2; ++j) {
+ errDown0[j].r = errDown0[j].g = errDown0[j].b = 0;
+ errDown1[j].r = errDown1[j].g = errDown1[j].b = 0;
}
} else {
- errDown = NULL;
+ errDown0 = errDown1 = NULL;
}
// optimize the one-bit-deep image case
- if ((oneBitMode = nComps == 1 && nBits == 1)) {
+ if (oneBitMode) {
pixBuf2[0] = 0;
colorMap->getRGB(pixBuf2, &oneBitRGB[0]);
pixBuf2[0] = 1;
@@ -3582,8 +3751,16 @@ void XOutputDev::drawImage(GfxState *state, Object *ref, Stream *str,
for (y = 0; y < scaledHeight; ++y) {
- // initialize error diffusion accumulator
- errRight.r = errRight.g = errRight.b = 0;
+ // initialize error diffusion accumulators
+ if (dither) {
+ errDownTmp = errDown0;
+ errDown0 = errDown1;
+ errDown1 = errDownTmp;
+ for (j = 0; j < scaledWidth + 2; ++j) {
+ errDown1[j].r = errDown1[j].g = errDown1[j].b = 0;
+ }
+ errRight.r = errRight.g = errRight.b = 0;
+ }
// y scale Bresenham
yStep = yp;
@@ -3596,30 +3773,35 @@ void XOutputDev::drawImage(GfxState *state, Object *ref, Stream *str,
// read row(s) from image
n = (yp > 0) ? yStep : lastYStep;
if (n > 0) {
- p = pixBuf;
- q = alphaBuf;
- for (i = 0; i < n; ++i) {
- p2 = imgStr->getLine();
- for (j = 0; j < width; ++j) {
- if (oneBitMode) {
- *p = oneBitRGB[*p2];
- } else {
+ if (oneBitMode) {
+ p1 = pixBuf1;
+ for (i = 0; i < n; ++i) {
+ p2 = imgStr->getLine();
+ memcpy(p1, p2, width);
+ p1 += width;
+ }
+ } else {
+ p = pixBuf;
+ q = alphaBuf;
+ for (i = 0; i < n; ++i) {
+ p2 = imgStr->getLine();
+ for (j = 0; j < width; ++j) {
colorMap->getRGB(p2, p);
- }
- ++p;
- if (q) {
- *q = 1;
- for (k = 0; k < nComps; ++k) {
- if (p2[k] < maskColors[2*k] ||
- p2[k] > maskColors[2*k]) {
- *q = 0;
- break;
- }
- }
- ++q;
- }
- p2 += nComps;
- }
+ ++p;
+ if (q) {
+ *q = 1;
+ for (k = 0; k < nComps; ++k) {
+ if (p2[k] < maskColors[2*k] ||
+ p2[k] > maskColors[2*k+1]) {
+ *q = 0;
+ break;
+ }
+ }
+ ++q;
+ }
+ p2 += nComps;
+ }
+ }
}
}
lastYStep = yStep;
@@ -3657,60 +3839,94 @@ void XOutputDev::drawImage(GfxState *state, Object *ref, Stream *str,
// x and y scaling operations
n = yStep > 0 ? yStep : 1;
m = xStep > 0 ? xStep : 1;
- p = pixBuf + xSrc;
- r0 = g0 = b0 = 0;
- q = alphaBuf ? alphaBuf + xSrc : (Guchar *)NULL;
- alpha = 0;
- for (i = 0; i < n; ++i) {
- for (j = 0; j < m; ++j) {
- r0 += p->r;
- g0 += p->g;
- b0 += p->b;
- ++p;
- if (q) {
- alpha += *q++;
+ if (oneBitMode) {
+ p1 = pixBuf1 + xSrc;
+ k = 0;
+ for (i = 0; i < n; ++i) {
+ for (j = 0; j < m; ++j) {
+ k += *p1++;
}
+ p1 += width - m;
}
- p += width - m;
+ mul = (double)k / (double)(n * m);
+ r0 = mul * oneBitRGB[1].r + (1 - mul) * oneBitRGB[0].r;
+ g0 = mul * oneBitRGB[1].g + (1 - mul) * oneBitRGB[0].g;
+ b0 = mul * oneBitRGB[1].b + (1 - mul) * oneBitRGB[0].b;
+ alpha = 0;
+ } else {
+ p = pixBuf + xSrc;
+ q = alphaBuf ? alphaBuf + xSrc : (Guchar *)NULL;
+ alpha = 0;
+ r0 = g0 = b0 = 0;
+ for (i = 0; i < n; ++i) {
+ for (j = 0; j < m; ++j) {
+ r0 += p->r;
+ g0 += p->g;
+ b0 += p->b;
+ ++p;
+ if (q) {
+ alpha += *q++;
+ }
+ }
+ p += width - m;
+ }
+ mul = 1 / (double)(n * m);
+ r0 *= mul;
+ g0 *= mul;
+ b0 *= mul;
+ alpha *= mul;
}
- mul = 1 / (double)(n * m);
- r0 *= mul;
- g0 *= mul;
- b0 *= mul;
- alpha *= mul;
// x scale Bresenham
xSrc += xStep;
// compute pixel
if (dither) {
- color2.r = r0 + errRight.r + errDown[tx + x2 - bx0].r;
+ color2.r = r0 + errRight.r + errDown0[x + 1].r;
if (color2.r > 1) {
- color2.r = 1;
+ color3.r = 1;
} else if (color2.r < 0) {
- color2.r = 0;
+ color3.r = 0;
+ } else {
+ color3.r = color2.r;
}
- color2.g = g0 + errRight.g + errDown[tx + x2 - bx0].g;
+ color2.g = g0 + errRight.g + errDown0[x + 1].g;
if (color2.g > 1) {
- color2.g = 1;
+ color3.g = 1;
} else if (color2.g < 0) {
- color2.g = 0;
+ color3.g = 0;
+ } else {
+ color3.g = color2.g;
}
- color2.b = b0 + errRight.b + errDown[tx + x2 - bx0].b;
+ color2.b = b0 + errRight.b + errDown0[x + 1].b;
if (color2.b > 1) {
- color2.b = 1;
+ color3.b = 1;
} else if (color2.b < 0) {
- color2.b = 0;
+ color3.b = 0;
+ } else {
+ color3.b = color2.b;
}
- pix = findColor(&color2, &err);
- errRight.r = errDown[tx + x2 - bx0].r = err.r / 2;
- errRight.g = errDown[tx + x2 - bx0].g = err.g / 2;
- errRight.b = errDown[tx + x2 - bx0].b = err.b / 2;
+ pix = findColor(&color3, &actual);
+ err.r = (color2.r - actual.r) / 16;
+ err.g = (color2.g - actual.g) / 16;
+ err.b = (color2.b - actual.b) / 16;
+ errRight.r = 7 * err.r;
+ errRight.g = 7 * err.g;
+ errRight.b = 7 * err.b;
+ errDown1[x].r += 3 * err.r;
+ errDown1[x].g += 3 * err.g;
+ errDown1[x].b += 3 * err.b;
+ errDown1[x + 1].r += 5 * err.r;
+ errDown1[x + 1].g += 5 * err.g;
+ errDown1[x + 1].b += 5 * err.b;
+ errDown1[x + 2].r = err.r;
+ errDown1[x + 2].g = err.g;
+ errDown1[x + 2].b = err.b;
} else {
color2.r = r0;
color2.g = g0;
color2.b = b0;
- pix = findColor(&color2, &err);
+ pix = findColor(&color2, &actual);
}
// set pixel
@@ -3726,25 +3942,35 @@ void XOutputDev::drawImage(GfxState *state, Object *ref, Stream *str,
// free memory
delete imgStr;
- gfree(pixBuf);
+ if (oneBitMode) {
+ gfree(pixBuf1);
+ } else {
+ gfree(pixBuf);
+ }
if (maskColors) {
gfree(alphaBuf);
}
gfree(image->data);
image->data = NULL;
XDestroyImage(image);
- gfree(errDown);
+ gfree(errDown0);
+ gfree(errDown1);
}
-GBool XOutputDev::findText(Unicode *s, int len, GBool top, GBool bottom,
- int *xMin, int *yMin, int *xMax, int *yMax) {
+GBool XOutputDev::findText(Unicode *s, int len,
+ GBool startAtTop, GBool stopAtBottom,
+ GBool startAtLast, GBool stopAtLast,
+ int *xMin, int *yMin,
+ int *xMax, int *yMax) {
double xMin1, yMin1, xMax1, yMax1;
xMin1 = (double)*xMin;
yMin1 = (double)*yMin;
xMax1 = (double)*xMax;
yMax1 = (double)*yMax;
- if (text->findText(s, len, top, bottom, &xMin1, &yMin1, &xMax1, &yMax1)) {
+ if (text->findText(s, len, startAtTop, stopAtBottom,
+ startAtLast, stopAtLast,
+ &xMin1, &yMin1, &xMax1, &yMax1)) {
*xMin = xoutRound(xMin1);
*xMax = xoutRound(xMax1);
*yMin = xoutRound(yMin1);
generated by cgit v0.9.1 at 2024-04-27 01:57:13 (GMT)