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| //======================================================================== | |
| // | |
| // ImageOutputDev.h | |
| // | |
| // 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) 2006 Rainer Keller <[email protected]> | |
| // Copyright (C) 2008 Timothy Lee <[email protected]> | |
| // Copyright (C) 2009 Carlos Garcia Campos <[email protected]> | |
| // Copyright (C) 2010 Jakob Voss <[email protected]> | |
| // Copyright (C) 2012, 2013, 2017 Adrian Johnson <[email protected]> | |
| // Copyright (C) 2013 Thomas Freitag <[email protected]> | |
| // Copyright (C) 2018, 2019, 2021, 2024 Albert Astals Cid <[email protected]> | |
| // Copyright (C) 2024 Fernando Herrera <[email protected]> | |
| // Copyright (C) 2024 Sebastian J. Bronner <[email protected]> | |
| // | |
| // 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 | |
| // | |
| //======================================================================== | |
| class GfxState; | |
| //------------------------------------------------------------------------ | |
| // ImageOutputDev | |
| //------------------------------------------------------------------------ | |
| class ImageOutputDev : public OutputDev | |
| { | |
| public: | |
| enum ImageType | |
| { | |
| imgImage, | |
| imgStencil, | |
| imgMask, | |
| imgSmask | |
| }; | |
| enum ImageFormat | |
| { | |
| imgRGB, | |
| imgRGB48, | |
| imgGray, | |
| imgMonochrome, | |
| imgCMYK | |
| }; | |
| // Create an OutputDev which will write images to files named | |
| // <fileRoot>-NNN.<type> or <fileRoot>-PPP-NNN.<type>, if | |
| // <pageNames> is set. Normally, all images are written as PBM | |
| // (.pbm) or PPM (.ppm) files unless PNG or Tiff output is enabled | |
| // (PNG is used if both are enabled). If Jpeg is enabled, JPEG images | |
| // are written as JPEG (.jpg) files. | |
| ImageOutputDev(char *fileRootA, bool pageNamesA, bool listImagesA); | |
| // Destructor. | |
| ~ImageOutputDev() override; | |
| // Use PNG format for output | |
| void enablePNG(bool png) { outputPNG = png; } | |
| // Use TIFF format for output | |
| void enableTiff(bool tiff) { outputTiff = tiff; } | |
| // Use Jpeg format for Jpeg files | |
| void enableJpeg(bool jpeg) { dumpJPEG = jpeg; } | |
| // Use Jpeg2000 format for Jpeg2000 files | |
| void enableJpeg2000(bool jp2) { dumpJP2 = jp2; } | |
| // Use JBIG2 format for JBIG2 files | |
| void enableJBig2(bool jbig2) { dumpJBIG2 = jbig2; } | |
| // Use CCITT format for CCITT files | |
| void enableCCITT(bool ccitt) { dumpCCITT = ccitt; } | |
| // Print filenames to stdout after writing | |
| void enablePrintFilenames(bool filenames) { printFilenames = filenames; } | |
| // Get the error code | |
| // 0 = No error, 1 = Error opening a PDF file, 2 = Error opening an output file, 3 = Error related to PDF permissions, 99 = Other error. | |
| int getErrorCode() const { return errorCode; } | |
| // Check if file was successfully created. | |
| virtual bool isOk() { return errorCode == 0; } | |
| // Does this device use tilingPatternFill()? If this returns false, | |
| // tiling pattern fills will be reduced to a series of other drawing | |
| // operations. | |
| bool useTilingPatternFill() override { return true; } | |
| // Does this device use beginType3Char/endType3Char? Otherwise, | |
| // text in Type 3 fonts will be drawn with drawChar/drawString. | |
| bool interpretType3Chars() override { return false; } | |
| // Does this device need non-text content? | |
| bool needNonText() override { return true; } | |
| // Start a page | |
| void startPage(int pageNumA, GfxState *state, XRef *xref) override { pageNum = pageNumA; } | |
| //---- get info about output device | |
| // Does this device use upside-down coordinates? | |
| // (Upside-down means (0,0) is the top left corner of the page.) | |
| bool upsideDown() override { return true; } | |
| // Does this device use drawChar() or drawString()? | |
| bool useDrawChar() override { return false; } | |
| //----- path painting | |
| bool tilingPatternFill(GfxState *state, Gfx *gfx, Catalog *cat, GfxTilingPattern *tPat, const double *mat, int x0, int y0, int x1, int y1, double xStep, double yStep) override; | |
| //----- image drawing | |
| void drawImageMask(GfxState *state, Object *ref, Stream *str, int width, int height, bool invert, bool interpolate, bool inlineImg) override; | |
| void drawImage(GfxState *state, Object *ref, Stream *str, int width, int height, GfxImageColorMap *colorMap, bool interpolate, const int *maskColors, bool inlineImg) override; | |
| void drawMaskedImage(GfxState *state, Object *ref, Stream *str, int width, int height, GfxImageColorMap *colorMap, bool interpolate, Stream *maskStr, int maskWidth, int maskHeight, bool maskInvert, bool maskInterpolate) override; | |
| void drawSoftMaskedImage(GfxState *state, Object *ref, Stream *str, int width, int height, GfxImageColorMap *colorMap, bool interpolate, Stream *maskStr, int maskWidth, int maskHeight, GfxImageColorMap *maskColorMap, | |
| bool maskInterpolate) override; | |
| private: | |
| // Sets the output filename with a given file extension | |
| void setFilename(const char *fileExt); | |
| void listImage(GfxState *state, Object *ref, Stream *str, int width, int height, GfxImageColorMap *colorMap, bool interpolate, bool inlineImg, ImageType imageType); | |
| void writeImage(GfxState *state, Object *ref, Stream *str, int width, int height, GfxImageColorMap *colorMap, bool inlineImg); | |
| void writeRawImage(Stream *str, const char *ext); | |
| void writeImageFile(ImgWriter *writer, ImageFormat format, const char *ext, Stream *str, int width, int height, GfxImageColorMap *colorMap); | |
| long getInlineImageLength(Stream *str, int width, int height, GfxImageColorMap *colorMap); | |
| char *fileRoot; // root of output file names | |
| char *fileName; // buffer for output file names | |
| bool listImages; // list images instead of dumping | |
| bool dumpJPEG; // set to dump native JPEG files | |
| bool dumpJP2; // set to dump native JPEG2000 files | |
| bool dumpJBIG2; // set to dump native JBIG2 files | |
| bool dumpCCITT; // set to dump native CCITT files | |
| bool outputPNG; // set to output in PNG format | |
| bool outputTiff; // set to output in TIFF format | |
| bool pageNames; // set to include page number in file names | |
| bool printFilenames; // set to print image filenames to stdout after writing | |
| int pageNum; // current page number | |
| int imgNum; // current image number | |
| int errorCode; // code for any error creating the output files | |
| }; | |