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Diffstat (limited to 'Build/source/libs/poppler/poppler-0.21.0/goo/JpegWriter.cc')
-rw-r--r-- | Build/source/libs/poppler/poppler-0.21.0/goo/JpegWriter.cc | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/Build/source/libs/poppler/poppler-0.21.0/goo/JpegWriter.cc b/Build/source/libs/poppler/poppler-0.21.0/goo/JpegWriter.cc deleted file mode 100644 index 2fe3d3276cf..00000000000 --- a/Build/source/libs/poppler/poppler-0.21.0/goo/JpegWriter.cc +++ /dev/null @@ -1,147 +0,0 @@ -//======================================================================== -// -// JpegWriter.cc -// -// This file is licensed under the GPLv2 or later -// -// Copyright (C) 2009 Stefan Thomas <thomas@eload24.com> -// Copyright (C) 2010, 2012 Adrian Johnson <ajohnson@redneon.com> -// Copyright (C) 2010 Harry Roberts <harry.roberts@midnight-labs.org> -// Copyright (C) 2011 Thomas Freitag <Thomas.Freitag@alfa.de> -// -//======================================================================== - -#include "JpegWriter.h" - -#ifdef ENABLE_LIBJPEG - -#include "poppler/Error.h" - -void outputMessage(j_common_ptr cinfo) -{ - char buffer[JMSG_LENGTH_MAX]; - - // Create the message - (*cinfo->err->format_message) (cinfo, buffer); - - // Send it to poppler's error handler - error(errInternal, -1, "{0:s}", buffer); -} - -JpegWriter::JpegWriter(int q, bool p, J_COLOR_SPACE cm) -: progressive(p), quality(q), colorMode(cm) -{ -} - -JpegWriter::JpegWriter(J_COLOR_SPACE cm) -: progressive(false), quality(-1), colorMode(cm) -{ -} - -JpegWriter::~JpegWriter() -{ - // cleanup - jpeg_destroy_compress(&cinfo); -} - -bool JpegWriter::init(FILE *f, int width, int height, int hDPI, int vDPI) -{ - // Setup error handler - cinfo.err = jpeg_std_error(&jerr); - jerr.output_message = &outputMessage; - - // Initialize libjpeg - jpeg_create_compress(&cinfo); - - // Set colorspace and initialise defaults - cinfo.in_color_space = colorMode; /* colorspace of input image */ - jpeg_set_defaults(&cinfo); - - // Set destination file - jpeg_stdio_dest(&cinfo, f); - - // Set libjpeg configuration - cinfo.image_width = width; - cinfo.image_height = height; - cinfo.density_unit = 1; // dots per inch - cinfo.X_density = hDPI; - cinfo.Y_density = vDPI; - /* # of color components per pixel */ - switch (colorMode) { - case JCS_GRAYSCALE: - cinfo.input_components = 1; - break; - case JCS_RGB: - cinfo.input_components = 3; - break; - case JCS_CMYK: - cinfo.input_components = 4; - break; - default: - return false; - } - if (cinfo.in_color_space == JCS_CMYK) { - jpeg_set_colorspace(&cinfo, JCS_YCCK); - cinfo.write_JFIF_header = TRUE; - } - - // Set quality - if( quality >= 0 && quality <= 100 ) { - jpeg_set_quality(&cinfo, quality, true); - } - - // Use progressive mode - if( progressive) { - jpeg_simple_progression(&cinfo); - } - - // Get ready for data - jpeg_start_compress(&cinfo, TRUE); - - return true; -} - -bool JpegWriter::writePointers(unsigned char **rowPointers, int rowCount) -{ - if (colorMode == JCS_CMYK) { - for (int y = 0; y < rowCount; y++) { - unsigned char *row = rowPointers[y]; - for (unsigned int x = 0; x < cinfo.image_width; x++) { - for (int n = 0; n < 4; n++) { - *row = 0xff - *row; - row++; - } - } - } - } - // Write all rows to the file - jpeg_write_scanlines(&cinfo, rowPointers, rowCount); - - return true; -} - -bool JpegWriter::writeRow(unsigned char **rowPointer) -{ - if (colorMode == JCS_CMYK) { - unsigned char *row = rowPointer[0]; - for (unsigned int x = 0; x < cinfo.image_width; x++) { - for (int n = 0; n < 4; n++) { - *row = 0xff - *row; - row++; - } - } - } - // Write the row to the file - jpeg_write_scanlines(&cinfo, rowPointer, 1); - - return true; -} - -bool JpegWriter::close() -{ - jpeg_finish_compress(&cinfo); - - return true; -} - -#endif |