static void testmirror(string orig, string origni, string truecolor)
{
string mirror = TestsHelper.addSuffixToName(orig, "_mirror");
string recov = TestsHelper.addSuffixToName(orig, "_recov");
long crc0 = 0;
bool interlaced;
bool palete;
{
PngReader pngr = FileHelper.CreatePngReader(orig);
palete = pngr.ImgInfo.Indexed;
PngHelperInternal.InitCrcForTests(pngr);
pngr.SetUnpackedMode(true);
interlaced = pngr.IsInterlaced();
PngWriter pngw = FileHelper.CreatePngWriter(mirror, pngr.ImgInfo, true);
pngw.SetFilterType(FilterType.FILTER_CYCLIC); // just to test all filters
pngw.CopyChunksFirst(pngr, ChunkCopyBehaviour.COPY_ALL);
pngw.SetUseUnPackedMode(true);
for (int row = 0; row < pngr.ImgInfo.Rows; row++)
{
ImageLine line = pngr.ReadRowInt(row);
mirrorLine(line);
pngw.WriteRow(line, row);
}
pngr.End();
crc0 = PngHelperInternal.GetCrctestVal(pngr);
pngw.CopyChunksFirst(pngr, ChunkCopyBehaviour.COPY_ALL);
pngw.End();
}
// mirror again, now with BYTE (if depth<16) and loading all rows
{
PngReader pngr2 = FileHelper.CreatePngReader(mirror);
pngr2.SetUnpackedMode(true);
PngWriter pngw = FileHelper.CreatePngWriter(recov, pngr2.ImgInfo, true);
pngw.SetFilterType(FilterType.FILTER_AGGRESSIVE);
pngw.CopyChunksFirst(pngr2, ChunkCopyBehaviour.COPY_ALL);
pngw.SetUseUnPackedMode(true);
ImageLines lines = pngr2.ImgInfo.BitDepth < 16 ? pngr2.ReadRowsByte() : pngr2
.ReadRowsInt();
for (int row = 0; row < pngr2.ImgInfo.Rows; row++)
{
ImageLine line = lines.GetImageLineAtMatrixRow(row);
mirrorLine(line);
pngw.WriteRow(line, row);
}
pngr2.End();
pngw.End();
}
// now check
if (orig[11] != 'i')
{
TestsHelper.testCrcEquals(recov, crc0);
}
//if (interlaced)
// additionalTestInterlaced(orig, origni);
//if (palete && System.IO.File.Exists(truecolor))
// additionalTestPalette(orig, truecolor);
}
private void _convert(string inputPdfPath)
{
_outputToInfo(inputPdfPath);
// make a sub path in the same folder as this
// put file(s) in there
// single file has NAME.png
// multiples are NAME_000.png
// overwrite just uses folder always
// otherwise, append output folder if it exists and is NOT empty
try
{
outputFolder = _createOutputFolder(inputPdfPath, _overwrite);
if (outputFolder == null)
{
_outputToInfo("Error");
return;
}
string historyFile = Path.Combine(outputFolder, "history.txt");
_outputToInfo("Output to: " + outputFolder);
_outputToInfo(" ");
using (GhostscriptRasterizer rasterizer = new GhostscriptRasterizer())
{
rasterizer.Open(inputPdfPath, _lastInstalledVersion, false);
if (_multiFiles)
{
string outputPath = Path.Combine(outputFolder, Path.GetFileNameWithoutExtension(inputPdfPath));
int nFiles = 0;
for (int pageNumber = 1; pageNumber <= rasterizer.PageCount; pageNumber++)
{
if (cancel)
{
break;
}
if (_isPageNumberRequired(pageNumber))
{
string pageFilePath = outputPath + "_" + pageNumber.ToString("000") + _imageExt;
Image img = rasterizer.GetPage(_dpi, _dpi, pageNumber);
img.Save(pageFilePath, _imageFmt);
_outputToInfo(img);
_outputToInfo(" " + Path.GetFileName(pageFilePath));
_outputToInfo(" Dimensions:" + img.Width + " x " + img.Height);
_outputToInfo();
_history(historyFile, inputPdfPath, pageFilePath);
nFiles++;
}
}
_outputToInfo(" complete, " + nFiles + " files in:");
_outputToInfo(" " + outputFolder);
_outputToInfo();
}
else
{
// work in PNG here
string outputPath = Path.GetTempPath();
string prefix = Guid.NewGuid().ToString().Substring(0, 7);
List <string> pathList = new List <string>();
int w = 0, h = 0;
for (int pageNumber = 1; pageNumber <= rasterizer.PageCount; pageNumber++)
{
if (cancel)
{
break;
}
if (_isPageNumberRequired(pageNumber))
{
string pageFilePath = Path.Combine(outputPath, prefix + "_" + pageNumber.ToString() + ".png");
Image img = rasterizer.GetPage(_dpi, _dpi, pageNumber);
img.Save(pageFilePath, ImageFormat.Png);
_outputToInfo(img);
pathList.Add(pageFilePath);
_outputToInfo(" building page: " + pageNumber + " of " + rasterizer.PageCount);
_outputToInfo();
h += img.Height;
w = Math.Max(w, img.Width);
}
}
// combine!!
if (cancel == false && pathList.Count > 0)
{
string bigImagePath = Path.Combine(outputPath, prefix + "_BIG" + ".png");
PngReader pngr = FileHelper.CreatePngReader(pathList[0]); // or you can use the constructor
ImageInfo ii = new ImageInfo(w, h, pngr.ImgInfo.BitDepth, pngr.ImgInfo.Alpha, false, false);
PngWriter pngw = FileHelper.CreatePngWriter(bigImagePath, ii, true);
int chunkBehav = ChunkCopyBehaviour.COPY_ALL_SAFE; // tell to copy all 'safe' chunks
pngw.CopyChunksFirst(pngr, chunkBehav); // copy some metadata from reader
pngr.End();
int destRow = 0;
int ic = 1;
foreach (string path in pathList)
{
pngr = FileHelper.CreatePngReader(path);
ImageLines iLines = pngr.ReadRowsInt(0, pngr.ImgInfo.Rows, 1);
int nrr = iLines.Nrows;
for (int i = 0; i < nrr; i++)
{
pngw.WriteRow(iLines.GetImageLineAtMatrixRow(i), destRow++);
}
_outputToInfo(" combining page:" + ic + " of " + pathList.Count);
ic++;
pngr.End();
File.Delete(path); // remove them as we go
}
pngw.CopyChunksLast(pngr, chunkBehav); // metadata after the image pixels? can happen
pngw.End(); // dont forget this
_autoCrop(bigImagePath);
// convert to required type if not PNG
string outputSingleFile = Path.Combine(outputFolder, Path.GetFileNameWithoutExtension(inputPdfPath) + _imageExt);
Bitmap bm;
if (_imageExt != ".png")
{
bm = new Bitmap(bigImagePath);
bm.Save(outputSingleFile, _imageFmt);
}
else
{
bm = new Bitmap(bigImagePath);
_moveFile(bigImagePath, outputSingleFile);
}
_outputToInfo(bm);
_outputToInfo(" Dimensions:" + bm.Width + " x " + bm.Height);
_outputToInfo(" Complete: ");
_outputToInfo(" " + outputSingleFile);
_history(historyFile, inputPdfPath, outputSingleFile);
}
else
{
_outputToInfo(" NO PAGES set! Try again.");
}
}
}
}
catch (Exception ex)
{
_outputToInfo("Error");
_outputToInfo(ex.ToString());
throw;
}
}
