1 files changed, 189 insertions, 0 deletions
diff --git a/Build/source/libs/poppler/poppler-0.35.0/goo/PNGWriter.cc b/Build/source/libs/poppler/poppler-0.35.0/goo/PNGWriter.cc
new file mode 100644
index 00000000000..c9d5199d040
--- /dev/null
+++ b/Build/source/libs/poppler/poppler-0.35.0/goo/PNGWriter.cc
@@ -0,0 +1,189 @@
+//========================================================================
+//
+// PNGWriter.cc
+//
+// This file is licensed under the GPLv2 or later
+//
+// Copyright (C) 2009 Warren Toomey <wkt@tuhs.org>
+// Copyright (C) 2009 Shen Liang <shenzhuxi@gmail.com>
+// Copyright (C) 2009, 2011 Albert Astals Cid <aacid@kde.org>
+// Copyright (C) 2009 Stefan Thomas <thomas@eload24.com>
+// Copyright (C) 2010, 2011, 2013 Adrian Johnson <ajohnson@redneon.com>
+// Copyright (C) 2011 Thomas Klausner <wiz@danbala.tuwien.ac.at>
+// Copyright (C) 2012 Pino Toscano <pino@kde.org>
+//
+//========================================================================
+
+#include "PNGWriter.h"
+
+#ifdef ENABLE_LIBPNG
+
+#include <zlib.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "poppler/Error.h"
+#include "goo/gmem.h"
+
+#include <png.h>
+
+struct PNGWriterPrivate {
+  PNGWriter::Format format;
+  png_structp png_ptr;
+  png_infop info_ptr;
+  unsigned char *icc_data;
+  int icc_data_size;
+  char *icc_name;
+  bool sRGB_profile;
+};
+
+PNGWriter::PNGWriter(Format formatA)
+{
+  priv = new PNGWriterPrivate;
+  priv->format = formatA;
+  priv->icc_data = NULL;
+  priv->icc_data_size = 0;
+  priv->icc_name = NULL;
+  priv->sRGB_profile = false;
+}
+
+PNGWriter::~PNGWriter()
+{
+  /* cleanup heap allocation */
+  png_destroy_write_struct(&priv->png_ptr, &priv->info_ptr);
+  if (priv->icc_data) {
+    gfree(priv->icc_data);
+    free(priv->icc_name);
+  }
+
+  delete priv;
+}
+
+void PNGWriter::setICCProfile(const char *name, unsigned char *data, int size)
+{
+  priv->icc_data = (unsigned char *)gmalloc(size);
+  memcpy(priv->icc_data, data, size);
+  priv->icc_data_size = size;
+  priv->icc_name = strdup(name);
+}
+
+void PNGWriter::setSRGBProfile()
+{
+  priv->sRGB_profile = true;
+}
+
+bool PNGWriter::init(FILE *f, int width, int height, int hDPI, int vDPI)
+{
+  /* libpng changed the png_set_iCCP() prototype in 1.5.0 */
+#if PNG_LIBPNG_VER < 10500
+  png_charp icc_data_ptr = (png_charp)priv->icc_data;
+#else
+  png_const_bytep icc_data_ptr = (png_const_bytep)priv->icc_data;
+#endif
+
+  /* initialize stuff */
+  priv->png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
+  if (!priv->png_ptr) {
+    error(errInternal, -1, "png_create_write_struct failed");
+    return false;
+  }
+
+  priv->info_ptr = png_create_info_struct(priv->png_ptr);
+  if (!priv->info_ptr) {
+    error(errInternal, -1, "png_create_info_struct failed");
+    return false;
+  }
+
+  if (setjmp(png_jmpbuf(priv->png_ptr))) {
+    error(errInternal, -1, "png_jmpbuf failed");
+    return false;
+  }
+
+  /* write header */
+  png_init_io(priv->png_ptr, f);
+  if (setjmp(png_jmpbuf(priv->png_ptr))) {
+    error(errInternal, -1, "Error during writing header");
+    return false;
+  }
+
+  // Set up the type of PNG image and the compression level
+  png_set_compression_level(priv->png_ptr, Z_BEST_COMPRESSION);
+
+  // Silence silly gcc
+  png_byte bit_depth = -1;
+  png_byte color_type = -1;
+  switch (priv->format) {
+    case RGB:
+      bit_depth = 8;
+      color_type = PNG_COLOR_TYPE_RGB;
+      break;
+    case RGBA:
+      bit_depth = 8;
+      color_type = PNG_COLOR_TYPE_RGB_ALPHA;
+      break;
+    case GRAY:
+      bit_depth = 8;
+      color_type = PNG_COLOR_TYPE_GRAY;
+      break;
+    case MONOCHROME:
+      bit_depth = 1;
+      color_type = PNG_COLOR_TYPE_GRAY;
+      break;
+  }
+  png_byte interlace_type = PNG_INTERLACE_NONE;
+
+  png_set_IHDR(priv->png_ptr, priv->info_ptr, width, height, bit_depth, color_type, interlace_type, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
+
+  png_set_pHYs(priv->png_ptr, priv->info_ptr, hDPI/0.0254, vDPI/0.0254, PNG_RESOLUTION_METER);
+
+  if (priv->icc_data)
+    png_set_iCCP(priv->png_ptr, priv->info_ptr, priv->icc_name, PNG_COMPRESSION_TYPE_BASE, icc_data_ptr, priv->icc_data_size);
+  else if (priv->sRGB_profile)
+    png_set_sRGB(priv->png_ptr, priv->info_ptr, PNG_sRGB_INTENT_RELATIVE);
+
+  png_write_info(priv->png_ptr, priv->info_ptr);
+  if (setjmp(png_jmpbuf(priv->png_ptr))) {
+    error(errInternal, -1, "error during writing png info bytes");
+    return false;
+  }
+
+  return true;
+}
+
+bool PNGWriter::writePointers(unsigned char **rowPointers, int rowCount)
+{
+  png_write_image(priv->png_ptr, rowPointers);
+  /* write bytes */
+  if (setjmp(png_jmpbuf(priv->png_ptr))) {
+    error(errInternal, -1, "Error during writing bytes");
+    return false;
+  }
+
+  return true;
+}
+
+bool PNGWriter::writeRow(unsigned char **row)
+{
+  // Write the row to the file
+  png_write_rows(priv->png_ptr, row, 1);
+  if (setjmp(png_jmpbuf(priv->png_ptr))) {
+    error(errInternal, -1, "error during png row write");
+    return false;
+  }
+
+  return true;
+}
+
+bool PNGWriter::close()
+{
+  /* end write */
+  png_write_end(priv->png_ptr, priv->info_ptr);
+  if (setjmp(png_jmpbuf(priv->png_ptr))) {
+    error(errInternal, -1, "Error during end of write");
+    return false;
+  }
+
+  return true;
+}
+
+#endif