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|
/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: pdfioutdev_gpl.cxx,v $
*
* $Revision: 1.4 $
*
* last change: $Author: thb $ $Date: 2007-12-17 03:44:23 $
*
* The Contents of this file are made available subject to
* the terms of GNU General Public License Version 2.
*
*
* GNU General Public License, version 2
* =============================================
* Copyright 2005 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
************************************************************************/
#include "pdfioutdev_gpl.hxx"
#include <stdio.h>
#include <assert.h>
#include <math.h>
#include <vector>
#if defined __SUNPRO_CC
#pragma disable_warn
#elif defined _MSC_VER
#pragma warning(push, 1)
#endif
#include "UTF8.h"
#if defined __SUNPRO_CC
#pragma enable_warn
#elif defined _MSC_VER
#pragma warning(pop)
#endif
#ifdef WNT
# define snprintf _snprintf
#endif
/* SYNC STREAMS
============
We stream human-readble tokens to stdout, and binary data (fonts,
bitmaps) to g_binary_out. Another process reads from those pipes, and
there lies the rub: things can deadlock, if the two involved
processes access the pipes in different order. At any point in
time, both processes must access the same pipe. To ensure this,
data must be flushed to the OS before writing to a different pipe,
otherwise not-yet-written data will leave the reading process
waiting on the wrong pipe.
*/
namespace pdfi
{
/// cut off very small numbers & clamp value to zero
inline double normalize( double val )
{
return fabs(val) < 0.0000001 ? 0.0 : val;
}
const char* escapeLineFeed( const char* pStr )
{
// TODO(Q3): Escape linefeeds
return pStr;
}
/// for the temp char buffer the header gets snprintfed in
#define WRITE_BUFFER_SIZE 1024
/// for the initial std::vector capacity when copying stream from xpdf
#define WRITE_BUFFER_INITIAL_CAPACITY (1024*100)
typedef std::vector<char> OutputBuffer;
void initBuf(OutputBuffer& io_rBuffer)
{
io_rBuffer.reserve(WRITE_BUFFER_INITIAL_CAPACITY);
}
void writeBinaryBuffer( const OutputBuffer& rBuffer )
{
// ---sync point--- see SYNC STREAMS above
fflush(stdout);
// put buffer to stderr
if( !rBuffer.empty() )
if( fwrite(&rBuffer[0], sizeof(char),
rBuffer.size(), g_binary_out) != (size_t)rBuffer.size() )
exit(1); // error
// ---sync point--- see SYNC STREAMS above
fflush(g_binary_out);
}
void writeJpeg_( OutputBuffer& o_rOutputBuf, Stream* str, bool bWithLinefeed )
{
// dump JPEG file as-is
str = ((DCTStream *)str)->getRawStream();
str->reset();
int c;
o_rOutputBuf.clear();
while((c=str->getChar()) != EOF)
o_rOutputBuf.push_back(static_cast<char>(c));
printf( " JPEG %d", o_rOutputBuf.size() );
if( bWithLinefeed )
printf("\n");
str->close();
}
void writePbm_(OutputBuffer& o_rOutputBuf, Stream* str, int width, int height, bool bWithLinefeed)
{
// write as PBM (char by char, to avoid stdlib lineend messing)
o_rOutputBuf.clear();
o_rOutputBuf.resize(WRITE_BUFFER_SIZE);
o_rOutputBuf[0] = 'P';
o_rOutputBuf[1] = '4';
o_rOutputBuf[2] = 0x0A;
int nOutLen = snprintf(&o_rOutputBuf[3], WRITE_BUFFER_SIZE-10, "%d %d", width, height);
if( nOutLen < 0 )
nOutLen = WRITE_BUFFER_SIZE-10;
o_rOutputBuf[3+nOutLen] =0x0A;
o_rOutputBuf[3+nOutLen+1]=0;
const int header_size = 3+nOutLen+1;
const int size = height * ((width + 7) / 8);
printf( " PBM %d", size + header_size );
if( bWithLinefeed )
printf("\n");
// trim buffer to exact header length
o_rOutputBuf.resize(header_size);
// initialize stream
str->reset();
// copy the raw stream
for( int i=0; i<size; ++i)
o_rOutputBuf.push_back(static_cast<char>(str->getChar()));
str->close();
}
// stolen from ImageOutputDev.cc
void writeMask_( OutputBuffer& o_rOutputBuf, Stream* str, int width, int height, bool bWithLinefeed )
{
if( str->getKind() == strDCT )
writeJpeg_(o_rOutputBuf, str, bWithLinefeed);
else
writePbm_(o_rOutputBuf, str, width, height, bWithLinefeed);
}
void writeImage_( OutputBuffer& o_rOutputBuf,
Stream* str,
int width,
int height,
GfxImageColorMap* colorMap,
bool bWithLinefeed )
{
// dump JPEG file
if( str->getKind() == strDCT &&
(colorMap->getNumPixelComps() == 1 ||
colorMap->getNumPixelComps() == 3) )
{
writeJpeg_(o_rOutputBuf, str, bWithLinefeed);
}
else if (colorMap->getNumPixelComps() == 1 &&
colorMap->getBits() == 1)
{
writePbm_(o_rOutputBuf, str, width, height, bWithLinefeed);
}
else
{
// write as PPM (char by char, to avoid stdlib lineend messing)
o_rOutputBuf.clear();
o_rOutputBuf.resize(WRITE_BUFFER_SIZE);
o_rOutputBuf[0] = 'P';
o_rOutputBuf[1] = '6';
o_rOutputBuf[2] = '\n';
int nOutLen = snprintf(&o_rOutputBuf[3], WRITE_BUFFER_SIZE-10, "%d %d", width, height);
if( nOutLen < 0 )
nOutLen = WRITE_BUFFER_SIZE-10;
o_rOutputBuf[3+nOutLen] ='\n';
o_rOutputBuf[3+nOutLen+1]='2';
o_rOutputBuf[3+nOutLen+2]='5';
o_rOutputBuf[3+nOutLen+3]='5';
o_rOutputBuf[3+nOutLen+4]='\n';
o_rOutputBuf[3+nOutLen+5]=0;
const int header_size = 3+nOutLen+5;
const int size = width*height*3 + header_size;
printf( " PPM %d", size );
if( bWithLinefeed )
printf("\n");
// trim buffer to exact header size
o_rOutputBuf.resize(header_size);
// initialize stream
Guchar *p;
GfxRGB rgb;
ImageStream* imgStr =
new ImageStream(str,
width,
colorMap->getNumPixelComps(),
colorMap->getBits());
imgStr->reset();
for( int y=0; y<height; ++y)
{
p = imgStr->getLine();
for( int x=0; x<width; ++x)
{
colorMap->getRGB(p, &rgb);
o_rOutputBuf.push_back(colToByte(rgb.r));
o_rOutputBuf.push_back(colToByte(rgb.g));
o_rOutputBuf.push_back(colToByte(rgb.b));
p +=colorMap->getNumPixelComps();
}
}
delete imgStr;
}
}
// forwarders
// ------------------------------------------------------------------
inline void writeImage( OutputBuffer& o_rOutputBuf,
Stream* str,
int width,
int height,
GfxImageColorMap* colorMap ) { writeImage_(o_rOutputBuf,str,width,height,colorMap,false); }
inline void writeImageLF( OutputBuffer& o_rOutputBuf,
Stream* str,
int width,
int height,
GfxImageColorMap* colorMap ) { writeImage_(o_rOutputBuf,str,width,height,colorMap,true); }
inline void writeMask( OutputBuffer& o_rOutputBuf,
Stream* str,
int width,
int height ) { writeMask_(o_rOutputBuf,str,width,height,false); }
inline void writeMaskLF( OutputBuffer& o_rOutputBuf,
Stream* str,
int width,
int height ) { writeMask_(o_rOutputBuf,str,width,height,true); }
// ------------------------------------------------------------------
int PDFOutDev::parseFont( long long nNewId, GfxFont* gfxFont, GfxState* state ) const
{
FontAttributes aNewFont;
int nSize = 0;
GString* pFamily = gfxFont->getName();
if( ! pFamily )
pFamily = gfxFont->getOrigName();
if( pFamily )
{
aNewFont.familyName.clear();
aNewFont.familyName.append( gfxFont->getName() );
}
else
{
aNewFont.familyName.clear();
aNewFont.familyName.append( "Arial" );
}
aNewFont.isBold = gfxFont->isBold();
aNewFont.isItalic = gfxFont->isItalic();
aNewFont.size = state->getTransformedFontSize();
aNewFont.isUnderline = false;
if( gfxFont->getType() == fontTrueType || gfxFont->getType() == fontType1 )
{
// TODO(P3): Unfortunately, need to read stream twice, since
// we must write byte count to stdout before
char* pBuf = gfxFont->readEmbFontFile( m_pDoc->getXRef(), &nSize );
if( pBuf )
aNewFont.isEmbedded = true;
}
m_aFontMap[ nNewId ] = aNewFont;
return nSize;
}
void PDFOutDev::writeFontFile( GfxFont* gfxFont ) const
{
if( gfxFont->getType() != fontTrueType && gfxFont->getType() != fontType1 )
return;
int nSize = 0;
char* pBuf = gfxFont->readEmbFontFile( m_pDoc->getXRef(), &nSize );
if( !pBuf )
return;
// ---sync point--- see SYNC STREAMS above
fflush(stdout);
if( fwrite(pBuf, sizeof(char), nSize, g_binary_out) != (size_t)nSize )
exit(1); // error
// ---sync point--- see SYNC STREAMS above
fflush(g_binary_out);
}
void PDFOutDev::printPath( GfxPath* pPath ) const
{
int nSubPaths = pPath ? pPath->getNumSubpaths() : 0;
for( int i=0; i<nSubPaths; i++ )
{
GfxSubpath* pSub = pPath->getSubpath( i );
const int nPoints = pSub->getNumPoints();
printf( " subpath %d", pSub->isClosed() );
for( int n=0; n<nPoints; ++n )
{
printf( " %f %f %d",
normalize(pSub->getX(n)),
normalize(pSub->getY(n)),
pSub->getCurve(n) );
}
}
}
PDFOutDev::PDFOutDev( PDFDoc* pDoc ) :
m_pDoc( pDoc ),
m_aFontMap(),
m_pUtf8Map( new UnicodeMap("UTF-8", gTrue, &mapUTF8) )
{
}
void PDFOutDev::startPage(int /*pageNum*/, GfxState* state)
{
assert(state);
printf("startPage %f %f\n",
normalize(state->getPageWidth()),
normalize(state->getPageHeight()));
}
void PDFOutDev::endPage()
{
printf("endPage\n");
}
void PDFOutDev::processLink(Link* link, Catalog*)
{
assert(link);
double x1,x2,y1,y2;
link->getRect( &x1, &y1, &x2, &y2 );
LinkAction* pAction = link->getAction();
if( pAction->getKind() == actionURI )
{
const char* pURI = static_cast<LinkURI*>(pAction)->getURI()->getCString();
printf( "drawLink %f %f %f %f %s\n",
normalize(x1),
normalize(y1),
normalize(x2),
normalize(y2),
escapeLineFeed(pURI) );
}
}
void PDFOutDev::saveState(GfxState*)
{
printf( "saveState\n" );
}
void PDFOutDev::restoreState(GfxState*)
{
printf( "restoreState\n" );
}
void PDFOutDev::setDefaultCTM(double *pMat)
{
assert(pMat);
OutputDev::setDefaultCTM(pMat);
printf( "updateCtm %f %f %f %f %f %f\n",
normalize(pMat[0]),
normalize(pMat[2]),
normalize(pMat[1]),
normalize(pMat[3]),
normalize(pMat[4]),
normalize(pMat[5]) );
}
void PDFOutDev::updateCTM(GfxState* state,
double, double,
double, double,
double, double)
{
assert(state);
const double* const pMat = state->getCTM();
assert(pMat);
printf( "updateCtm %f %f %f %f %f %f\n",
normalize(pMat[0]),
normalize(pMat[2]),
normalize(pMat[1]),
normalize(pMat[3]),
normalize(pMat[4]),
normalize(pMat[5]) );
}
void PDFOutDev::updateLineDash(GfxState *state)
{
assert(state);
double* dashArray; int arrayLen; double startOffset;
state->getLineDash(&dashArray, &arrayLen, &startOffset);
printf( "updateLineDash" );
if( arrayLen && dashArray )
{
printf( " %f %d", normalize(startOffset), arrayLen );
for( int i=0; i<arrayLen; ++i )
printf( " %f", normalize(*dashArray++) );
}
printf( "\n" );
}
void PDFOutDev::updateFlatness(GfxState *state)
{
assert(state);
printf( "updateFlatness %d\n", state->getFlatness() );
}
void PDFOutDev::updateLineJoin(GfxState *state)
{
assert(state);
printf( "updateLineJoin %d\n", state->getLineJoin() );
}
void PDFOutDev::updateLineCap(GfxState *state)
{
assert(state);
printf( "updateLineCap %d\n", state->getLineCap() );
}
void PDFOutDev::updateMiterLimit(GfxState *state)
{
assert(state);
printf( "updateMiterLimit %f\n", normalize(state->getMiterLimit()) );
}
void PDFOutDev::updateLineWidth(GfxState *state)
{
assert(state);
printf( "updateLineWidth %f\n", normalize(state->getLineWidth()) );
}
void PDFOutDev::updateFillColor(GfxState *state)
{
assert(state);
GfxRGB aRGB;
state->getFillRGB( &aRGB );
printf( "updateFillColor %f %f %f %f\n",
normalize(colToDbl(aRGB.r)),
normalize(colToDbl(aRGB.g)),
normalize(colToDbl(aRGB.b)),
normalize(state->getFillOpacity()) );
}
void PDFOutDev::updateStrokeColor(GfxState *state)
{
assert(state);
GfxRGB aRGB;
state->getStrokeRGB( &aRGB );
printf( "updateStrokeColor %f %f %f %f\n",
normalize(colToDbl(aRGB.r)),
normalize(colToDbl(aRGB.g)),
normalize(colToDbl(aRGB.b)),
normalize(state->getFillOpacity()) );
}
void PDFOutDev::updateFillOpacity(GfxState *state)
{
updateFillColor(state);
}
void PDFOutDev::updateStrokeOpacity(GfxState *state)
{
updateStrokeColor(state);
}
void PDFOutDev::updateBlendMode(GfxState*)
{
}
void PDFOutDev::updateFont(GfxState *state)
{
assert(state);
GfxFont *gfxFont = state->getFont();
if( gfxFont )
{
FontAttributes aFont;
int nEmbedSize=0;
Ref* pID = gfxFont->getID();
// TODO(Q3): Portability problem
long long fontID = (long long)pID->gen << 32 | (long long)pID->num;
std::hash_map< long long, FontAttributes >::const_iterator it =
m_aFontMap.find( fontID );
if( it == m_aFontMap.end() )
{
nEmbedSize = parseFont( fontID, gfxFont, state );
it = m_aFontMap.find( fontID );
}
printf( "updateFont" );
if( it != m_aFontMap.end() )
{
// conflating this with printf below crashes under Windoze
printf( " %lld", fontID );
aFont = it->second;
printf( " %d %d %d %d %f %d %s",
aFont.isEmbedded,
aFont.isBold,
aFont.isItalic,
aFont.isUnderline,
normalize(state->getTransformedFontSize()),
nEmbedSize,
escapeLineFeed(aFont.familyName.getCString()) );
}
printf( "\n" );
if( nEmbedSize )
writeFontFile(gfxFont);
}
}
void PDFOutDev::stroke(GfxState *state)
{
assert(state);
printf( "strokePath" );
printPath( state->getPath() );
printf( "\n" );
}
void PDFOutDev::fill(GfxState *state)
{
assert(state);
printf( "fillPath" );
printPath( state->getPath() );
printf( "\n" );
}
void PDFOutDev::eoFill(GfxState *state)
{
assert(state);
printf( "eoFillPath" );
printPath( state->getPath() );
printf( "\n" );
}
void PDFOutDev::clip(GfxState *state)
{
assert(state);
printf( "clipPath" );
printPath( state->getPath() );
printf( "\n" );
}
void PDFOutDev::eoClip(GfxState *state)
{
assert(state);
printf( "eoClipPath" );
printPath( state->getPath() );
printf( "\n" );
}
/** Output one glyph
@param dx
horizontal skip for character (already scaled with font size) +
inter-char space: cursor is shifted by this amount for next char
@param dy
vertical skip for character (zero for horizontal writing mode):
cursor is shifted by this amount for next char
@param originX
local offset of character (zero for horizontal writing mode). not
taken into account for output pos updates. Used for vertical writing.
@param originY
local offset of character (zero for horizontal writing mode). not
taken into account for output pos updates. Used for vertical writing.
*/
void PDFOutDev::drawChar(GfxState *state, double x, double y,
double dx, double dy,
double originX, double originY,
CharCode, int /*nBytes*/, Unicode *u, int uLen)
{
assert(state);
if( u == NULL )
return;
// normalize coordinates: correct from baseline-relative to upper
// left corner of glyphs
double x2(0.0), y2(0.0);
state->textTransformDelta( 0.0,
state->getFont()->getAscent(),
&x2, &y2 );
const double fFontSize(state->getFontSize());
x += x2*fFontSize;
y += y2*fFontSize;
const double aPositionX(x-originX);
const double aPositionY(y-originY);
// TODO(F2): use leading here, when set
const double nWidth(dx != 0.0 ? dx : fFontSize);
const double nHeight(dy != 0.0 ? dy : fFontSize);
const double* pTextMat=state->getTextMat();
printf( "drawChar %f %f %f %f %f %f %f %f ",
normalize(aPositionX),
normalize(aPositionY),
normalize(aPositionX+nWidth),
normalize(aPositionY-nHeight),
normalize(pTextMat[0]),
normalize(pTextMat[2]),
normalize(pTextMat[1]),
normalize(pTextMat[3]) );
// silence spurious warning
(void)&mapUCS2;
char buf[9];
for( int i=0; i<uLen; ++i )
{
buf[ m_pUtf8Map->mapUnicode(u[i], buf, sizeof(buf)-1) ] = 0;
printf( "%s", escapeLineFeed(buf) );
}
printf( "\n" );
}
void PDFOutDev::drawString(GfxState*, GString* /*s*/)
{
// TODO(F3): NYI
}
void PDFOutDev::endTextObject(GfxState*)
{
printf( "endTextObject\n" );
}
void PDFOutDev::drawImageMask(GfxState*, Object*, Stream* str,
int width, int height, GBool invert,
GBool /*inlineImg*/ )
{
OutputBuffer aBuf; initBuf(aBuf);
printf( "drawMask %d %d %d", width, height, invert );
writeMaskLF(aBuf, str, width, height);
writeBinaryBuffer(aBuf);
}
void PDFOutDev::drawImage(GfxState*, Object*, Stream* str,
int width, int height, GfxImageColorMap* colorMap,
int* maskColors, GBool /*inlineImg*/ )
{
OutputBuffer aBuf; initBuf(aBuf);
OutputBuffer aMaskBuf;
printf( "drawImage %d %d", width, height );
if( maskColors )
{
// write mask colors. nBytes must be even - first half is
// lower bound values, second half upper bound values
if( colorMap->getColorSpace()->getMode() == csIndexed )
{
aMaskBuf.push_back( (char)maskColors[0] );
aMaskBuf.push_back( (char)maskColors[gfxColorMaxComps] );
}
else
{
GfxRGB aMinRGB;
colorMap->getColorSpace()->getRGB(
(GfxColor*)maskColors,
&aMinRGB );
GfxRGB aMaxRGB;
colorMap->getColorSpace()->getRGB(
(GfxColor*)maskColors+gfxColorMaxComps,
&aMaxRGB );
aMaskBuf.push_back( colToByte(aMinRGB.r) );
aMaskBuf.push_back( colToByte(aMinRGB.g) );
aMaskBuf.push_back( colToByte(aMinRGB.b) );
aMaskBuf.push_back( colToByte(aMaxRGB.r) );
aMaskBuf.push_back( colToByte(aMaxRGB.g) );
aMaskBuf.push_back( colToByte(aMaxRGB.b) );
}
}
printf( " %d", aMaskBuf.size() );
writeImageLF( aBuf, str, width, height, colorMap );
writeBinaryBuffer(aBuf);
writeBinaryBuffer(aMaskBuf);
}
void PDFOutDev::drawMaskedImage(GfxState*, Object*, Stream* str,
int width, int height,
GfxImageColorMap* colorMap,
Stream* maskStr,
int maskWidth, int maskHeight,
GBool maskInvert)
{
OutputBuffer aBuf; initBuf(aBuf);
OutputBuffer aMaskBuf; initBuf(aMaskBuf);
printf( "drawMaskedImage %d %d %d %d %d", width, height, maskWidth, maskHeight, maskInvert );
writeImage( aBuf, str, width, height, colorMap );
writeMaskLF( aMaskBuf, maskStr, width, height );
writeBinaryBuffer(aBuf);
writeBinaryBuffer(aMaskBuf);
}
void PDFOutDev::drawSoftMaskedImage(GfxState*, Object*, Stream* str,
int width, int height,
GfxImageColorMap* colorMap,
Stream* maskStr,
int maskWidth, int maskHeight,
GfxImageColorMap* maskColorMap )
{
OutputBuffer aBuf; initBuf(aBuf);
OutputBuffer aMaskBuf; initBuf(aMaskBuf);
printf( "drawSoftMaskedImage %d %d %d %d", width, height, maskWidth, maskHeight );
writeImage( aBuf, str, width, height, colorMap );
writeImageLF( aMaskBuf, maskStr, maskWidth, maskHeight, maskColorMap );
writeBinaryBuffer(aBuf);
writeBinaryBuffer(aMaskBuf);
}
void PDFOutDev::setPageNum( int nNumPages )
{
// TODO(F3): printf might format int locale-dependent!
printf("setPageNum %d\n", nNumPages);
}
}
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