public virtual void Size300Px72DpiImageTest()
{
ImageData img = ImageDataFactory.Create(sourceFolder + "size300Px72Dpi.png");
NUnit.Framework.Assert.AreEqual(ImageType.PNG, img.GetOriginalType());
NUnit.Framework.Assert.AreEqual(300, img.GetWidth(), 0);
NUnit.Framework.Assert.AreEqual(300, img.GetHeight(), 0);
NUnit.Framework.Assert.AreEqual(72, img.GetDpiX());
NUnit.Framework.Assert.AreEqual(72, img.GetDpiY());
}
public virtual void Size300Px300DpiImageTest()
{
// Test a more specific entry point
ImageData img = ImageDataFactory.CreatePng(UrlUtil.ToURL(sourceFolder + "size300Px300Dpi.png"));
NUnit.Framework.Assert.AreEqual(ImageType.PNG, img.GetOriginalType());
NUnit.Framework.Assert.AreEqual(300, img.GetWidth(), 0);
NUnit.Framework.Assert.AreEqual(300, img.GetHeight(), 0);
NUnit.Framework.Assert.AreEqual(300, img.GetDpiX());
NUnit.Framework.Assert.AreEqual(300, img.GetDpiY());
}
public virtual void SRGBImageTest()
{
ImageData img = ImageDataFactory.Create(sourceFolder + "sRGBImage.png");
NUnit.Framework.Assert.AreEqual(ImageType.PNG, img.GetOriginalType());
NUnit.Framework.Assert.AreEqual(50, img.GetWidth(), 0);
NUnit.Framework.Assert.AreEqual(50, img.GetHeight(), 0);
NUnit.Framework.Assert.AreEqual(96, img.GetDpiX());
NUnit.Framework.Assert.AreEqual(96, img.GetDpiY());
NUnit.Framework.Assert.AreEqual(2.2, ((PngImageData)img).GetGamma(), 0.0001f);
PngChromaticities pngChromaticities = ((PngImageData)img).GetPngChromaticities();
NUnit.Framework.Assert.AreEqual(0.3127f, pngChromaticities.GetXW(), 0.0001f);
NUnit.Framework.Assert.AreEqual(0.329f, pngChromaticities.GetYW(), 0.0001f);
NUnit.Framework.Assert.AreEqual(0.64f, pngChromaticities.GetXR(), 0.0001f);
NUnit.Framework.Assert.AreEqual(0.33f, pngChromaticities.GetYR(), 0.0001f);
NUnit.Framework.Assert.AreEqual(0.3f, pngChromaticities.GetXG(), 0.0001f);
NUnit.Framework.Assert.AreEqual(0.6f, pngChromaticities.GetYG(), 0.0001f);
NUnit.Framework.Assert.AreEqual(0.15f, pngChromaticities.GetXB(), 0.0001f);
NUnit.Framework.Assert.AreEqual(0.06f, pngChromaticities.GetYB(), 0.0001f);
}
public virtual void SRGBImageTest()
{
using (FileStream fis = new FileStream(sourceFolder + "sRGBImage.png", FileMode.Open, FileAccess.Read)) {
byte[] imageBytes = StreamUtil.InputStreamToArray(fis);
// Test a more specific entry point
ImageData img = ImageDataFactory.CreatePng(imageBytes);
NUnit.Framework.Assert.AreEqual(ImageType.PNG, img.GetOriginalType());
NUnit.Framework.Assert.AreEqual(50, img.GetWidth(), 0);
NUnit.Framework.Assert.AreEqual(50, img.GetHeight(), 0);
NUnit.Framework.Assert.AreEqual(96, img.GetDpiX());
NUnit.Framework.Assert.AreEqual(96, img.GetDpiY());
NUnit.Framework.Assert.AreEqual(2.2, ((PngImageData)img).GetGamma(), 0.0001f);
PngChromaticities pngChromaticities = ((PngImageData)img).GetPngChromaticities();
NUnit.Framework.Assert.AreEqual(0.3127f, pngChromaticities.GetXW(), 0.0001f);
NUnit.Framework.Assert.AreEqual(0.329f, pngChromaticities.GetYW(), 0.0001f);
NUnit.Framework.Assert.AreEqual(0.64f, pngChromaticities.GetXR(), 0.0001f);
NUnit.Framework.Assert.AreEqual(0.33f, pngChromaticities.GetYR(), 0.0001f);
NUnit.Framework.Assert.AreEqual(0.3f, pngChromaticities.GetXG(), 0.0001f);
NUnit.Framework.Assert.AreEqual(0.6f, pngChromaticities.GetYG(), 0.0001f);
NUnit.Framework.Assert.AreEqual(0.15f, pngChromaticities.GetXB(), 0.0001f);
NUnit.Framework.Assert.AreEqual(0.06f, pngChromaticities.GetYB(), 0.0001f);
}
}
/// <summary>This method checks if the image is a valid JPEG and processes some parameters.</summary>
/// <exception cref="iText.IO.IOException"/>
/// <exception cref="System.IO.IOException"/>
private static void ProcessParameters(Stream jpegStream, String errorID, ImageData image)
{
byte[][] icc = null;
if (jpegStream.Read() != 0xFF || jpegStream.Read() != 0xD8)
{
throw new iText.IO.IOException(iText.IO.IOException._1IsNotAValidJpegFile).SetMessageParams(errorID);
}
bool firstPass = true;
int len;
while (true)
{
int v = jpegStream.Read();
if (v < 0)
{
throw new iText.IO.IOException(iText.IO.IOException.PrematureEofWhileReadingJpeg);
}
if (v == 0xFF)
{
int marker = jpegStream.Read();
if (firstPass && marker == M_APP0)
{
firstPass = false;
len = GetShort(jpegStream);
if (len < 16)
{
StreamUtil.Skip(jpegStream, len - 2);
continue;
}
byte[] bcomp = new byte[JFIF_ID.Length];
int r = jpegStream.Read(bcomp);
if (r != bcomp.Length)
{
throw new iText.IO.IOException(iText.IO.IOException._1CorruptedJfifMarker).SetMessageParams(errorID);
}
bool found = true;
for (int k = 0; k < bcomp.Length; ++k)
{
if (bcomp[k] != JFIF_ID[k])
{
found = false;
break;
}
}
if (!found)
{
StreamUtil.Skip(jpegStream, len - 2 - bcomp.Length);
continue;
}
StreamUtil.Skip(jpegStream, 2);
int units = jpegStream.Read();
int dx = GetShort(jpegStream);
int dy = GetShort(jpegStream);
if (units == 1)
{
image.SetDpi(dx, dy);
}
else
{
if (units == 2)
{
image.SetDpi((int)(dx * 2.54f + 0.5f), (int)(dy * 2.54f + 0.5f));
}
}
StreamUtil.Skip(jpegStream, len - 2 - bcomp.Length - 7);
continue;
}
if (marker == M_APPE)
{
len = GetShort(jpegStream) - 2;
byte[] byteappe = new byte[len];
for (int k = 0; k < len; ++k)
{
byteappe[k] = (byte)jpegStream.Read();
}
if (byteappe.Length >= 12)
{
String appe = iText.IO.Util.JavaUtil.GetStringForBytes(byteappe, 0, 5, "ISO-8859-1");
if (appe.Equals("Adobe"))
{
image.SetInverted(true);
}
}
continue;
}
if (marker == M_APP2)
{
len = GetShort(jpegStream) - 2;
byte[] byteapp2 = new byte[len];
for (int k = 0; k < len; ++k)
{
byteapp2[k] = (byte)jpegStream.Read();
}
if (byteapp2.Length >= 14)
{
String app2 = iText.IO.Util.JavaUtil.GetStringForBytes(byteapp2, 0, 11, "ISO-8859-1");
if (app2.Equals("ICC_PROFILE"))
{
int order = byteapp2[12] & 0xff;
int count = byteapp2[13] & 0xff;
// some jpeg producers don't know how to count to 1
if (order < 1)
{
order = 1;
}
if (count < 1)
{
count = 1;
}
if (icc == null)
{
icc = new byte[count][];
}
icc[order - 1] = byteapp2;
}
}
continue;
}
if (marker == M_APPD)
{
len = GetShort(jpegStream) - 2;
byte[] byteappd = new byte[len];
for (int k = 0; k < len; k++)
{
byteappd[k] = (byte)jpegStream.Read();
}
// search for '8BIM Resolution' marker
int k_1;
for (k_1 = 0; k_1 < len - PS_8BIM_RESO.Length; k_1++)
{
bool found = true;
for (int j = 0; j < PS_8BIM_RESO.Length; j++)
{
if (byteappd[k_1 + j] != PS_8BIM_RESO[j])
{
found = false;
break;
}
}
if (found)
{
break;
}
}
k_1 += PS_8BIM_RESO.Length;
if (k_1 < len - PS_8BIM_RESO.Length)
{
// "PASCAL String" for name, i.e. string prefix with length byte
// padded to be even length; 2 null bytes if empty
byte namelength = byteappd[k_1];
// add length byte
namelength++;
// add padding
if (namelength % 2 == 1)
{
namelength++;
}
// just skip name
k_1 += namelength;
// size of the resolution data
int resosize = (byteappd[k_1] << 24) + (byteappd[k_1 + 1] << 16) + (byteappd[k_1 + 2] << 8) + byteappd[k_1
+ 3];
// should be 16
if (resosize != 16)
{
// fail silently, for now
//System.err.println("DEBUG: unsupported resolution IRB size");
continue;
}
k_1 += 4;
int dx = (byteappd[k_1] << 8) + (byteappd[k_1 + 1] & 0xff);
k_1 += 2;
// skip 2 unknown bytes
k_1 += 2;
int unitsx = (byteappd[k_1] << 8) + (byteappd[k_1 + 1] & 0xff);
k_1 += 2;
// skip 2 unknown bytes
k_1 += 2;
int dy = (byteappd[k_1] << 8) + (byteappd[k_1 + 1] & 0xff);
k_1 += 2;
// skip 2 unknown bytes
k_1 += 2;
int unitsy = (byteappd[k_1] << 8) + (byteappd[k_1 + 1] & 0xff);
if (unitsx == 1 || unitsx == 2)
{
dx = (unitsx == 2 ? (int)(dx * 2.54f + 0.5f) : dx);
// make sure this is consistent with JFIF data
if (image.GetDpiX() != 0 && image.GetDpiX() != dx)
{
ILog logger = LogManager.GetLogger(typeof(JpegImageHelper));
logger.Debug(MessageFormatUtil.Format("Inconsistent metadata (dpiX: {0} vs {1})", image.GetDpiX(), dx));
}
else
{
image.SetDpi(dx, image.GetDpiY());
}
}
if (unitsy == 1 || unitsy == 2)
{
dy = (unitsy == 2 ? (int)(dy * 2.54f + 0.5f) : dy);
// make sure this is consistent with JFIF data
if (image.GetDpiY() != 0 && image.GetDpiY() != dy)
{
ILog logger = LogManager.GetLogger(typeof(JpegImageHelper));
logger.Debug(MessageFormatUtil.Format("Inconsistent metadata (dpiY: {0} vs {1})", image.GetDpiY(), dy));
}
else
{
image.SetDpi(image.GetDpiX(), dx);
}
}
}
continue;
}
firstPass = false;
int markertype = Marker(marker);
if (markertype == VALID_MARKER)
{
StreamUtil.Skip(jpegStream, 2);
if (jpegStream.Read() != 0x08)
{
throw new iText.IO.IOException(iText.IO.IOException._1MustHave8BitsPerComponent).SetMessageParams(errorID);
}
image.SetHeight(GetShort(jpegStream));
image.SetWidth(GetShort(jpegStream));
image.SetColorSpace(jpegStream.Read());
image.SetBpc(8);
break;
}
else
{
if (markertype == UNSUPPORTED_MARKER)
{
throw new iText.IO.IOException(iText.IO.IOException._1UnsupportedJpegMarker2).SetMessageParams(errorID, JavaUtil.IntegerToString
(marker));
}
else
{
if (markertype != NOPARAM_MARKER)
{
StreamUtil.Skip(jpegStream, GetShort(jpegStream) - 2);
}
}
}
}
}
if (icc != null)
{
int total = 0;
for (int k = 0; k < icc.Length; ++k)
{
if (icc[k] == null)
{
icc = null;
return;
}
total += icc[k].Length - 14;
}
byte[] ficc = new byte[total];
total = 0;
for (int k = 0; k < icc.Length; ++k)
{
Array.Copy(icc[k], 14, ficc, total, icc[k].Length - 14);
total += icc[k].Length - 14;
}
try {
image.SetProfile(IccProfile.GetInstance(ficc, image.GetColorSpace()));
}
catch (ArgumentException) {
}
}
}
