From 7443892f6805653f77531efd05aa0c2a5c3aaf9c Mon Sep 17 00:00:00 2001
From: kramm <kramm>
Date: Wed, 12 Nov 2008 10:33:32 +0000
Subject: [PATCH] continued bounding box implementation
---
lib/pdf/BitmapOutputDev.cc | 412 +++++++++++++++++++++++++++++++-------------
lib/pdf/BitmapOutputDev.h | 3 +
2 files changed, 299 insertions(+), 116 deletions(-)
diff --git a/lib/pdf/BitmapOutputDev.cc b/lib/pdf/BitmapOutputDev.cc
index 19a52f3..8d762cf 100644
--- a/lib/pdf/BitmapOutputDev.cc
+++ b/lib/pdf/BitmapOutputDev.cc
@@ -53,7 +53,7 @@ BitmapOutputDev::BitmapOutputDev(InfoOutputDev*info, PDFDoc*doc)
this->rgbdev = new SplashOutputDev(splashModeRGB8, 1, gFalse, splash_white, gTrue, gTrue);
/* color mode for binary bitmaps */
- SplashColorMode colorMode = splashModeMono8;
+ SplashColorMode colorMode = splashModeMono1;
/* two devices for testing things against clipping: one clips, the other doesn't */
this->clip0dev = new SplashOutputDev(colorMode, 1, gFalse, splash_black, gTrue, gFalse);
@@ -302,16 +302,24 @@ void writeBitmap(SplashBitmap*bitmap, char*filename)
gfxcolor_t*data = (gfxcolor_t*)malloc(sizeof(gfxcolor_t)*width*height);
+ unsigned char aa=0;
+ if(bitmap->getMode()==splashModeMono1)
+ aa=255;
+
for(y=0;y<height;y++) {
gfxcolor_t*line = &data[y*width];
for(x=0;x<width;x++) {
- Guchar c[4];
+ Guchar c[4] = {0,0,0,0};
bitmap->getPixel(x,y,c);
- int a = bitmap->getAlpha(x,y);
line[x].r = c[0];
line[x].g = c[1];
line[x].b = c[2];
- line[x].a = a;
+ if(aa) {
+ line[x].a = aa;
+ } else {
+ int a = bitmap->getAlpha(x,y);
+ line[x].a = a;
+ }
}
}
writePNG(filename, (unsigned char*)data, width, height);
@@ -324,6 +332,11 @@ void writeAlpha(SplashBitmap*bitmap, char*filename)
int width = bitmap->getWidth();
int height = bitmap->getHeight();
+
+ if(bitmap->getMode()==splashModeMono1) {
+ writeBitmap(bitmap, filename);
+ return;
+ }
gfxcolor_t*data = (gfxcolor_t*)malloc(sizeof(gfxcolor_t)*width*height);
@@ -449,7 +462,7 @@ GBool BitmapOutputDev::checkNewBitmap(int x1, int y1, int x2, int y2)
sprintf(filename2, "state%dbooltext_afternewgfx.png", dbg_btm_counter);
sprintf(filename3, "state%dbitmap_afternewgfx.png", dbg_btm_counter);
- if(0) {
+ if(dbg_btm_counter==12) {
msg("<verbose> %s %s %s", filename1, filename2, filename3);
writeAlpha(boolpolybitmap, filename1);
writeAlpha(booltextbitmap, filename2);
@@ -499,35 +512,43 @@ GBool BitmapOutputDev::checkNewBitmap(int x1, int y1, int x2, int y2)
// break;
//}
+static inline GBool fixBBox(int*x1, int*y1, int*x2, int*y2, int width, int height)
+{
+ if(!(*x1|*y1|*x2|*y2)) {
+ // undefined bbox
+ *x1 = *y1 = 0;
+ *x2 = width;
+ *y2 = height;
+ return gTrue;
+ }
+ if(*x2<=*x1) return gFalse;
+ if(*x2<0) return gFalse;
+ if(*x1<0) *x1 = 0;
+ if(*x1>=width) return gFalse;
+ if(*x2>width) *x2=width;
+
+ if(*y2<=*y1) return gFalse;
+ if(*y2<0) return gFalse;
+ if(*y1<0) *y1 = 0;
+ if(*y1>=height) return gFalse;
+ if(*y2>height) *y2=height;
+ return gTrue;
+}
+
GBool BitmapOutputDev::clip0and1differ(int x1,int y1,int x2,int y2)
{
if(clip0bitmap->getMode()==splashModeMono1) {
- if(x2<=x1)
- return gFalse;
- if(x2<0)
- return gFalse;
- if(x1<0)
- x1 = 0;
- if(x1>=clip0bitmap->getWidth())
- return gFalse;
- if(x2>clip0bitmap->getWidth())
- x2=clip0bitmap->getWidth();
-
- if(y2<=y1)
- return gFalse;
- if(y2<0)
- return gFalse;
- if(y1<0)
- y1 = 0;
- if(y1>=clip0bitmap->getHeight())
- return gFalse;
- if(y2>clip0bitmap->getHeight())
- y2=clip0bitmap->getHeight();
+ int width = clip0bitmap->getWidth();
+ int width8 = (width+7)/8;
+ int height = clip0bitmap->getHeight();
+
+ if(fixBBox(&x1,&y1,&x2,&y2,width,height)) {
+ /* area is outside or null */
+ return gFalse;
+ }
SplashBitmap*clip0 = clip0bitmap;
SplashBitmap*clip1 = clip1bitmap;
- int width8 = (clip0bitmap->getWidth()+7)/8;
- int height = clip0bitmap->getHeight();
int x18 = x1/8;
int x28 = (x2+7)/8;
int y;
@@ -544,7 +565,33 @@ GBool BitmapOutputDev::clip0and1differ(int x1,int y1,int x2,int y2)
SplashBitmap*clip1 = clip1bitmap;
int width = clip0->getAlphaRowSize();
int height = clip0->getHeight();
- return memcmp(clip0->getAlphaPtr(), clip1->getAlphaPtr(), width*height);
+
+ if(!fixBBox(&x1, &y1, &x2, &y2, width, height)) {
+ x1=y1=0;x2=y2=1;
+ }
+
+ Guchar*a0 = clip0->getAlphaPtr();
+ Guchar*a1 = clip1->getAlphaPtr();
+ int x,y;
+ char differs=0;
+ for(y=y1;y<y2;y++) {
+ for(x=x1;x<x2;x++) {
+ if(a0[y*width+x]!=a1[y*width+x]) {
+ differs=1;
+ break;
+ }
+ }
+ if(differs)
+ break;
+ }
+ char differs2 = memcmp(a0, a1, width*height);
+ if(differs && !differs2)
+ msg("<warning> Strange internal error (2)");
+ else if(!differs && differs2) {
+ msg("<warning> Bad Bounding Box: Difference in clip0 and clip1 outside bbox");
+ msg("<warning> %d %d %d %d", x1, y1, x2, y2);
+ }
+ return differs2;
}
}
@@ -567,84 +614,141 @@ static void clearBooleanBitmap(SplashBitmap*btm, int x1, int y1, int x2, int y2)
}
}
-long long unsigned int compare64(long long unsigned int*data1, long long unsigned int*data2, int len)
+GBool compare8(unsigned char*data1, unsigned char*data2, int len)
{
- long long unsigned int c;
+ if(!len)
+ return 0;
+ if(((ptroff_t)data1&7)==((ptroff_t)data2&7)) {
+ // oh good, we can do aligning
+ while((ptroff_t)data1&7) {
+ if(*data1&*data2)
+ return 1;
+ data1++;
+ data2++;
+ if(!--len)
+ return 0;
+ }
+ }
+ /* use 64 bit for the (hopefully aligned) middle section */
+ int l8 = len/8;
+ long long unsigned int*d1 = (long long unsigned int*)data1;
+ long long unsigned int*d2 = (long long unsigned int*)data2;
+ long long unsigned int x = 0;
int t;
+ for(t=0;t<l8;t++) {
+ x |= d1[t]&d2[t];
+ }
+ if(x)
+ return 1;
+
+ data1+=l8*8;
+ data2+=l8*8;
+ len -= l8*8;
for(t=0;t<len;t++) {
- c |= data1[t]&data2[t];
+ if(data1[t]&data2[t]) {
+ return 1;
+ }
}
- return c;
+ return 0;
}
GBool BitmapOutputDev::intersection(int x1, int y1, int x2, int y2)
{
SplashBitmap*boolpoly = boolpolybitmap;
SplashBitmap*booltext = booltextbitmap;
-
+
if(boolpoly->getMode()==splashModeMono1) {
/* alternative implementation, using one bit per pixel-
- would work if xpdf wouldn't try to dither everything */
+ needs the no-dither patch in xpdf */
+
+ int width = boolpoly->getWidth();
+ int height = boolpoly->getHeight();
+
+ if(!fixBBox(&x1,&y1,&x2,&y2, width, height)) {
+ return gFalse;
+ }
Guchar*polypixels = boolpoly->getDataPtr();
Guchar*textpixels = booltext->getDataPtr();
- int width8 = (width+7)/8;
- int height = boolpoly->getHeight();
+ int width8 = (width+7)/8;
+ int runx = width8;
+ int runy = height;
if(x1|y1|x2|y2) {
- if(y1>=0 && y1<=y2 && y2<=height) {
- polypixels+=y1*width8;
- textpixels+=y1*width8;
- height=y2-y1;
- }
+ polypixels+=y1*width8+x1/8;
+ textpixels+=y1*width8+x1/8;
+ runx=(x2+7)/8 - x1/8;
+ runy=y2-y1;
}
int t;
- int len = height*width8;
- unsigned long long int c=0;
- assert(sizeof(unsigned long long int)==8);
- {
- if(((ptroff_t)polypixels&7) || ((ptroff_t)textpixels&7)) {
- //msg("<warning> Non-optimal alignment");
- }
- int l2 = len;
- len /= sizeof(unsigned long long int);
- c = compare64((unsigned long long int*)polypixels, (unsigned long long int*)textpixels, len);
- int l1 = len*sizeof(unsigned long long int);
- for(t=l1;t<l2;t++) {
- c |= (unsigned long long int)(polypixels[t]&textpixels[t]);
- }
- }
- if(c)
- /* if graphic data and the characters overlap, they have common bits */
- return gTrue;
- else
- return gFalse;
+ unsigned char c=0;
+
+ /*assert(sizeof(unsigned long long int)==8);
+ if(((ptroff_t)polypixels&7) || ((ptroff_t)textpixels&7)) {
+ //msg("<warning> Non-optimal alignment");
+ }*/
+
+ int x,y;
+ unsigned char*data1 = (unsigned char*)polypixels;
+ unsigned char*data2 = (unsigned char*)textpixels;
+ msg("<verbose> Testing area (%d,%d,%d,%d), runx=%d,runy=%d", x1,y1,x2,y2, runx, runy);
+ for(y=0;y<runy;y++) {
+ compare8(data1,data2,runx);
+ /*for(x=0;x<runx;x++) {
+ if(data1[x]&data2[x])
+ return gTrue;
+ }*/
+ data1+=width8;
+ data2+=width8;
+ }
+ return gFalse;
} else {
- Guchar*polypixels = boolpoly->getAlphaPtr();
- Guchar*textpixels = booltext->getAlphaPtr();
-
int width = boolpoly->getAlphaRowSize();
int height = boolpoly->getHeight();
-
- int t;
- int len = height*width;
- unsigned int c=0;
- if(len & (sizeof(unsigned int)-1)) {
- Guchar c2=0;
- for(t=0;t<len;t++) {
- if(polypixels[t]&&textpixels[t])
- return gTrue;
- }
- } else {
- len /= sizeof(unsigned int);
- for(t=0;t<len;t++) {
- if((((unsigned int*)polypixels)[t]) & (((unsigned int*)textpixels)[t]))
- return gTrue;
- }
- }
- return gFalse;
+
+ if(!fixBBox(&x1, &y1, &x2, &y2, width, height)) {
+ x1=y1=0;x2=y2=1;
+ }
+ Guchar*polypixels = boolpoly->getAlphaPtr();
+ Guchar*textpixels = booltext->getAlphaPtr();
+
+ int x,y;
+ char overlap1 = 0;
+ char overlap2 = 0;
+ for(x=x1;x<x2;x++) {
+ for(y=y1;y<y2;y++) {
+ if(polypixels[width*y+x]&&textpixels[width*y+x])
+ overlap1 = 1;
+ }
+ }
+ int ax1=0,ay1=0,ax2=0,ay2=0;
+ for(y=0;y<height;y++) {
+ for(x=0;x<width;x++) {
+ if(polypixels[width*y+x]&&textpixels[width*y+x]) {
+ overlap2 = 1;
+ if(!(ax1|ay1|ax2|ay2)) {
+ ax1 = ax2 = x;
+ ay1 = ay2 = y;
+ } else {
+ ax1 = ax1<x?ax1:x;
+ ay1 = ay1<y?ay1:y;
+ ax2 = ax2>x?ax2:x;
+ ay2 = ay2>y?ay2:y;
+ }
+ }
+ }
+ }
+ if(overlap1 && !overlap2)
+ msg("<warning> strange internal error");
+ if(!overlap1 && overlap2) {
+ msg("<warning> Bad bounding box: intersection outside bbox");
+ msg("<warning> given bbox: %d %d %d %d", x1, y1, x2, y2);
+ msg("<warning> changed area: %d %d %d %d", ax1, ay1, ax2, ay2);
+ //writeAlpha(booltextbitmap, "alpha.png");
+ }
+ return overlap2;
}
}
@@ -1089,18 +1193,61 @@ void BitmapOutputDev::updateTextShift(GfxState *state, double shift)
gfxdev->updateTextShift(state, shift);
}
+double max(double x, double y)
+{
+ return x>y?x:y;
+}
+double min(double x, double y)
+{
+ return x<y?x:y;
+}
+
+gfxbbox_t BitmapOutputDev::getBBox(GfxState*state)
+{
+ GfxPath * path = state->getPath();
+ int num = path->getNumSubpaths();
+ gfxbbox_t bbox = {0,0,1,1};
+ char valid=0;
+ int t;
+ for(t = 0; t < num; t++) {
+ GfxSubpath *subpath = path->getSubpath(t);
+ int subnum = subpath->getNumPoints();
+ int s;
+ for(s=0;s<subnum;s++) {
+ double x,y;
+ state->transform(subpath->getX(s),subpath->getY(s),&x,&y);
+ if(!valid) {
+ bbox.xmin = x; bbox.ymin = y;
+ bbox.xmax = x; bbox.ymax = y;
+ valid = 1;
+ } else {
+ bbox.xmin = min(bbox.xmin, x);
+ bbox.ymin = min(bbox.ymin, y);
+ bbox.xmax = max(bbox.xmax, x);
+ bbox.ymax = max(bbox.ymax, y);
+ }
+ }
+ }
+ return bbox;
+}
+
void BitmapOutputDev::stroke(GfxState *state)
{
msg("<debug> stroke");
boolpolydev->stroke(state);
- checkNewBitmap(UNKNOWN_BOUNDING_BOX);
+ gfxbbox_t bbox = getBBox(state);
+ double width = state->getTransformedLineWidth();
+ bbox.xmin -= width; bbox.ymin -= width;
+ bbox.xmax += width; bbox.ymax += width;
+ checkNewBitmap(bbox.xmin, bbox.ymin, ceil(bbox.xmax), ceil(bbox.ymax));
rgbdev->stroke(state);
}
void BitmapOutputDev::fill(GfxState *state)
{
msg("<debug> fill");
boolpolydev->fill(state);
- if(checkNewBitmap(UNKNOWN_BOUNDING_BOX)) {
+ gfxbbox_t bbox = getBBox(state);
+ if(checkNewBitmap(bbox.xmin, bbox.ymin, ceil(bbox.xmax), ceil(bbox.ymax))) {
boolpolydev->fill(state);
}
rgbdev->fill(state);
@@ -1109,7 +1256,8 @@ void BitmapOutputDev::eoFill(GfxState *state)
{
msg("<debug> eoFill");
boolpolydev->eoFill(state);
- if(checkNewBitmap(UNKNOWN_BOUNDING_BOX)) {
+ gfxbbox_t bbox = getBBox(state);
+ if(checkNewBitmap(bbox.xmin, bbox.ymin, ceil(bbox.xmax), ceil(bbox.ymax))) {
boolpolydev->eoFill(state);
}
rgbdev->eoFill(state);
@@ -1198,15 +1346,6 @@ void BitmapOutputDev::beginStringOp(GfxState *state)
booltextdev->beginStringOp(state);
gfxdev->beginStringOp(state);
}
-void BitmapOutputDev::endStringOp(GfxState *state)
-{
- msg("<debug> endStringOp");
- clip0dev->endStringOp(state);
- clip1dev->endStringOp(state);
- booltextdev->endStringOp(state);
- checkNewText(UNKNOWN_BOUNDING_BOX);
- gfxdev->endStringOp(state);
-}
void BitmapOutputDev::beginString(GfxState *state, GString *s)
{
msg("<debug> beginString");
@@ -1215,15 +1354,6 @@ void BitmapOutputDev::beginString(GfxState *state, GString *s)
booltextdev->beginString(state, s);
gfxdev->beginString(state, s);
}
-void BitmapOutputDev::endString(GfxState *state)
-{
- msg("<debug> endString");
- clip0dev->endString(state);
- clip1dev->endString(state);
- booltextdev->endString(state);
- checkNewText(UNKNOWN_BOUNDING_BOX);
- gfxdev->endString(state);
-}
void BitmapOutputDev::clearClips()
{
@@ -1254,7 +1384,7 @@ void BitmapOutputDev::drawChar(GfxState *state, double x, double y,
} else if(rgbbitmap != rgbdev->getBitmap()) {
// we're doing softmasking or transparency grouping
boolpolydev->drawChar(state, x, y, dx, dy, originX, originY, code, nBytes, u, uLen);
- checkNewBitmap(UNKNOWN_BOUNDING_BOX);
+ //checkNewBitmap(UNKNOWN_BOUNDING_BOX);
rgbdev->drawChar(state, x, y, dx, dy, originX, originY, code, nBytes, u, uLen);
} else {
// we're drawing a regular char
@@ -1270,17 +1400,19 @@ void BitmapOutputDev::drawChar(GfxState *state, double x, double y,
msg("<error> couldn't create outline for char %d", code);
return;
}
+ x-=originX;
+ y-=originY;
+ path->offset((SplashCoord)x, (SplashCoord)y);
int t;
for(t=0;t<path->getLength();t++) {
double xx,yy;
Guchar f;
path->getPoint(t,&xx,&yy,&f);
- xx+=x;
- yy+=y;
+ state->transform(xx,yy,&xx,&yy);
if(xx<x1) x1=(int)xx;
if(yy<y1) y1=(int)yy;
- if(xx>x2) x2=(int)xx+1;
- if(yy>y2) y2=(int)yy+1;
+ if(xx>=x2) x2=(int)xx+1;
+ if(yy>=y2) y2=(int)yy+1;
}
/* if this character is affected somehow by the various clippings (i.e., it looks
@@ -1289,7 +1421,7 @@ void BitmapOutputDev::drawChar(GfxState *state, double x, double y,
if(clip0and1differ(x1,y1,x2,y2)) {
msg("<verbose> Char %d is affected by clipping", code);
boolpolydev->drawChar(state, x, y, dx, dy, originX, originY, code, nBytes, u, uLen);
- checkNewBitmap(UNKNOWN_BOUNDING_BOX);
+ checkNewBitmap(x1,y1,x2,y2);
rgbdev->drawChar(state, x, y, dx, dy, originX, originY, code, nBytes, u, uLen);
if(config_extrafontdata) {
int oldrender = state->getRender();
@@ -1323,10 +1455,30 @@ void BitmapOutputDev::endTextObject(GfxState *state)
clip0dev->endTextObject(state);
clip1dev->endTextObject(state);
booltextdev->endTextObject(state);
- /* TODO: do this only if rendermode!=0 */
- checkNewText(UNKNOWN_BOUNDING_BOX);
+ /* the only thing "drawn" here is clipping */
+ //checkNewText(UNKNOWN_BOUNDING_BOX);
gfxdev->endTextObject(state);
}
+void BitmapOutputDev::endString(GfxState *state)
+{
+ msg("<debug> endString");
+ clip0dev->endString(state);
+ clip1dev->endString(state);
+ booltextdev->endString(state);
+ int render = state->getRender();
+ if(render != RENDER_INVISIBLE && render != RENDER_FILL) {
+ checkNewText(UNKNOWN_BOUNDING_BOX);
+ }
+ gfxdev->endString(state);
+}
+void BitmapOutputDev::endStringOp(GfxState *state)
+{
+ msg("<debug> endStringOp");
+ clip0dev->endStringOp(state);
+ clip1dev->endStringOp(state);
+ booltextdev->endStringOp(state);
+ gfxdev->endStringOp(state);
+}
/* TODO: these four operations below *should* do nothing, as type3
chars are drawn using operations like fill() */
@@ -1384,6 +1536,30 @@ class CopyStream: public Object
Stream* getStream() {return this->memstream;};
};
+gfxbbox_t BitmapOutputDev::getImageBBox(GfxState*state)
+{
+ gfxbbox_t bbox;
+ double x,y;
+ state->transform(0, 1, &x, &y);
+ bbox.xmin=bbox.xmax = x;
+ bbox.ymin=bbox.ymax = x;
+ state->transform(0, 0, &x, &y);
+ bbox.xmin=min(bbox.xmin,x);
+ bbox.ymin=min(bbox.ymin,y);
+ bbox.xmax=max(bbox.xmin,x);
+ bbox.ymax=max(bbox.ymin,y);
+ state->transform(1, 0, &x, &y);
+ bbox.xmin=min(bbox.xmin,x);
+ bbox.ymin=min(bbox.ymin,y);
+ bbox.xmax=max(bbox.xmin,x);
+ bbox.ymax=max(bbox.ymin,y);
+ state->transform(1, 1, &x, &y);
+ bbox.xmin=min(bbox.xmin,x);
+ bbox.ymin=min(bbox.ymin,y);
+ bbox.xmax=max(bbox.xmin,x);
+ bbox.ymax=max(bbox.ymin,y);
+ return bbox;
+}
void BitmapOutputDev::drawImageMask(GfxState *state, Object *ref, Stream *str,
int width, int height, GBool invert,
GBool inlineImg)
@@ -1395,7 +1571,8 @@ void BitmapOutputDev::drawImageMask(GfxState *state, Object *ref, Stream *str,
str = cpystr->getStream();
}
boolpolydev->drawImageMask(state, ref, str, width, height, invert, inlineImg);
- checkNewBitmap(UNKNOWN_BOUNDING_BOX);
+ gfxbbox_t bbox = getImageBBox(state);
+ checkNewBitmap(bbox.xmin, bbox.ymin, ceil(bbox.xmax), ceil(bbox.ymax));
rgbdev->drawImageMask(state, ref, str, width, height, invert, inlineImg);
if(cpystr)
delete cpystr;
@@ -1411,7 +1588,8 @@ void BitmapOutputDev::drawImage(GfxState *state, Object *ref, Stream *str,
str = cpystr->getStream();
}
boolpolydev->drawImage(state, ref, str, width, height, colorMap, maskColors, inlineImg);
- checkNewBitmap(UNKNOWN_BOUNDING_BOX);
+ gfxbbox_t bbox=getImageBBox(state);
+ checkNewBitmap(bbox.xmin, bbox.ymin, ceil(bbox.xmax), ceil(bbox.ymax));
rgbdev->drawImage(state, ref, str, width, height, colorMap, maskColors, inlineImg);
if(cpystr)
delete cpystr;
@@ -1424,7 +1602,8 @@ void BitmapOutputDev::drawMaskedImage(GfxState *state, Object *ref, Stream *str,
{
msg("<debug> drawMaskedImage streamkind=%d", str->getKind());
boolpolydev->drawMaskedImage(state, ref, str, width, height, colorMap, maskStr, maskWidth, maskHeight, maskInvert);
- checkNewBitmap(UNKNOWN_BOUNDING_BOX);
+ gfxbbox_t bbox=getImageBBox(state);
+ checkNewBitmap(bbox.xmin, bbox.ymin, ceil(bbox.xmax), ceil(bbox.ymax));
rgbdev->drawMaskedImage(state, ref, str, width, height, colorMap, maskStr, maskWidth, maskHeight, maskInvert);
}
void BitmapOutputDev::drawSoftMaskedImage(GfxState *state, Object *ref, Stream *str,
@@ -1436,7 +1615,8 @@ void BitmapOutputDev::drawSoftMaskedImage(GfxState *state, Object *ref, Stream *
{
msg("<debug> drawSoftMaskedImage %dx%d (%dx%d) streamkind=%d", width, height, maskWidth, maskHeight, str->getKind());
boolpolydev->drawSoftMaskedImage(state, ref, str, width, height, colorMap, maskStr, maskWidth, maskHeight, maskColorMap);
- checkNewBitmap(UNKNOWN_BOUNDING_BOX);
+ gfxbbox_t bbox=getImageBBox(state);
+ checkNewBitmap(bbox.xmin, bbox.ymin, ceil(bbox.xmax), ceil(bbox.ymax));
rgbdev->drawSoftMaskedImage(state, ref, str, width, height, colorMap, maskStr, maskWidth, maskHeight, maskColorMap);
}
void BitmapOutputDev::drawForm(Ref id)
diff --git a/lib/pdf/BitmapOutputDev.h b/lib/pdf/BitmapOutputDev.h
index 7e16472..ee8004c 100644
--- a/lib/pdf/BitmapOutputDev.h
+++ b/lib/pdf/BitmapOutputDev.h
@@ -195,6 +195,9 @@ private:
GBool checkNewBitmap(int x1, int y1, int x2, int y2);
GBool clip0and1differ(int x1,int y1,int x2,int y2);
GBool intersection(int x1,int y1,int x2,int y2);
+
+ virtual gfxbbox_t getImageBBox(GfxState*state);
+ virtual gfxbbox_t getBBox(GfxState*state);
char config_extrafontdata;
--
1.7.10.4