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//========================================================================
//
// ImageOutputDev.cc
//
// Copyright 1998-2003 Glyph & Cog, LLC
//
//========================================================================
//========================================================================
//
// Modified under the Poppler project - http://poppler.freedesktop.org
//
// All changes made under the Poppler project to this file are licensed
// under GPL version 2 or later
//
// Copyright (C) 2005, 2007 Albert Astals Cid <aacid@kde.org>
// Copyright (C) 2006 Rainer Keller <class321@gmx.de>
// Copyright (C) 2008 Timothy Lee <timothy.lee@siriushk.com>
// Copyright (C) 2008 Vasile Gaburici <gaburici@cs.umd.edu>
// Copyright (C) 2009 Carlos Garcia Campos <carlosgc@gnome.org>
// Copyright (C) 2009 William Bader <williambader@hotmail.com>
// Copyright (C) 2010 Jakob Voss <jakob.voss@gbv.de>
//
// To see a description of the changes please see the Changelog file that
// came with your tarball or type make ChangeLog if you are building from git
//
//========================================================================
#include "config.h"
#include <poppler-config.h>
#ifdef USE_GCC_PRAGMAS
#pragma implementation
#endif
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <ctype.h>
#include "goo/gmem.h"
#include "Error.h"
#include "GfxState.h"
#include "Object.h"
#include "Stream.h"
#ifdef ENABLE_LIBJPEG
#include "DCTStream.h"
#endif
#include "ImageOutputDev.h"
ImageOutputDev::ImageOutputDev(char *fileRootA, GBool pageNamesA, GBool dumpJPEGA) {
fileRoot = copyString(fileRootA);
fileName = (char *)gmalloc(strlen(fileRoot) + 45);
dumpJPEG = dumpJPEGA;
pageNames = pageNamesA;
imgNum = 0;
pageNum = 0;
ok = gTrue;
}
ImageOutputDev::~ImageOutputDev() {
gfree(fileName);
gfree(fileRoot);
}
void ImageOutputDev::setFilename(const char *fileExt) {
if (pageNames) {
sprintf(fileName, "%s-%03d-%03d.%s", fileRoot, pageNum, imgNum, fileExt);
} else {
sprintf(fileName, "%s-%03d.%s", fileRoot, imgNum, fileExt);
}
}
void ImageOutputDev::drawImageMask(GfxState *state, Object *ref, Stream *str,
int width, int height, GBool invert,
GBool interpolate, GBool inlineImg) {
FILE *f;
int c;
int size, i;
// dump JPEG file
if (dumpJPEG && str->getKind() == strDCT && !inlineImg) {
// open the image file
setFilename("jpg");
++imgNum;
if (!(f = fopen(fileName, "wb"))) {
error(-1, "Couldn't open image file '%s'", fileName);
return;
}
// initialize stream
str = ((DCTStream *)str)->getRawStream();
str->reset();
// copy the stream
while ((c = str->getChar()) != EOF)
fputc(c, f);
str->close();
fclose(f);
// dump PBM file
} else {
// open the image file and write the PBM header
setFilename("pbm");
++imgNum;
if (!(f = fopen(fileName, "wb"))) {
error(-1, "Couldn't open image file '%s'", fileName);
return;
}
fprintf(f, "P4\n");
fprintf(f, "%d %d\n", width, height);
// initialize stream
str->reset();
// copy the stream
size = height * ((width + 7) / 8);
for (i = 0; i < size; ++i) {
fputc(str->getChar(), f);
}
str->close();
fclose(f);
}
}
void ImageOutputDev::drawImage(GfxState *state, Object *ref, Stream *str,
int width, int height,
GfxImageColorMap *colorMap,
GBool interpolate, int *maskColors, GBool inlineImg) {
FILE *f;
ImageStream *imgStr;
Guchar *p;
Guchar zero = 0;
GfxGray gray;
GfxRGB rgb;
int x, y;
int c;
int size, i;
int pbm_mask = 0xff;
// dump JPEG file
if (dumpJPEG && str->getKind() == strDCT &&
(colorMap->getNumPixelComps() == 1 ||
colorMap->getNumPixelComps() == 3) &&
!inlineImg) {
// open the image file
setFilename("jpg");
++imgNum;
if (!(f = fopen(fileName, "wb"))) {
error(-1, "Couldn't open image file '%s'", fileName);
return;
}
// initialize stream
str = ((DCTStream *)str)->getRawStream();
str->reset();
// copy the stream
while ((c = str->getChar()) != EOF)
fputc(c, f);
str->close();
fclose(f);
// dump PBM file
} else if (colorMap->getNumPixelComps() == 1 &&
colorMap->getBits() == 1) {
// open the image file and write the PBM header
setFilename("pbm");
++imgNum;
if (!(f = fopen(fileName, "wb"))) {
error(-1, "Couldn't open image file '%s'", fileName);
return;
}
fprintf(f, "P4\n");
fprintf(f, "%d %d\n", width, height);
// initialize stream
str->reset();
// if 0 comes out as 0 in the color map, the we _flip_ stream bits
// otherwise we pass through stream bits unmolested
colorMap->getGray(&zero, &gray);
if(colToByte(gray))
pbm_mask = 0;
// copy the stream
size = height * ((width + 7) / 8);
for (i = 0; i < size; ++i) {
fputc(str->getChar() ^ pbm_mask, f);
}
str->close();
fclose(f);
// dump PPM file
} else {
// open the image file and write the PPM header
setFilename("ppm");
++imgNum;
if (!(f = fopen(fileName, "wb"))) {
error(-1, "Couldn't open image file '%s'", fileName);
return;
}
fprintf(f, "P6\n");
fprintf(f, "%d %d\n", width, height);
fprintf(f, "255\n");
// initialize stream
imgStr = new ImageStream(str, width, colorMap->getNumPixelComps(),
colorMap->getBits());
imgStr->reset();
// for each line...
for (y = 0; y < height; ++y) {
// write the line
p = imgStr->getLine();
for (x = 0; x < width; ++x) {
colorMap->getRGB(p, &rgb);
fputc(colToByte(rgb.r), f);
fputc(colToByte(rgb.g), f);
fputc(colToByte(rgb.b), f);
p += colorMap->getNumPixelComps();
}
}
imgStr->close();
delete imgStr;
fclose(f);
}
}
void ImageOutputDev::drawMaskedImage(
GfxState *state, Object *ref, Stream *str,
int width, int height, GfxImageColorMap *colorMap, GBool interpolate,
Stream *maskStr, int maskWidth, int maskHeight, GBool maskInvert, GBool maskInterpolate) {
drawImage(state, ref, str, width, height, colorMap, interpolate, NULL, gFalse);
drawImageMask(state, ref, maskStr, maskWidth, maskHeight, maskInvert,
maskInterpolate, gFalse);
}
void ImageOutputDev::drawSoftMaskedImage(
GfxState *state, Object *ref, Stream *str,
int width, int height, GfxImageColorMap *colorMap, GBool interpolate,
Stream *maskStr, int maskWidth, int maskHeight,
GfxImageColorMap *maskColorMap, GBool maskInterpolate) {
drawImage(state, ref, str, width, height, colorMap, interpolate, NULL, gFalse);
drawImage(state, ref, maskStr, maskWidth, maskHeight,
maskColorMap, maskInterpolate, NULL, gFalse);
}
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