public void ThumbnailTest053s()
{
string file = Path.Combine(Util.ArtifactsDataPath, "test053C_01_01.th44");
using (FileStream stream = new FileStream(file, FileMode.Open, FileAccess.Read, FileShare.Read))
using (DjvuReader reader = new DjvuReader(stream))
{
TH44Chunk th = new TH44Chunk(reader, null, null, "TH44", stream.Length);
var thumb = th.Thumbnail;
Assert.NotNull(thumb);
Assert.Equal(128, thumb.Height);
Assert.Equal(91, thumb.Width);
th.Thumbnail = null;
var thumb2 = th.Thumbnail;
Assert.NotNull(thumb2);
Assert.Equal(128, thumb2.Height);
Assert.Equal(91, thumb2.Width);
Assert.NotSame(thumb, thumb2);
var map = new InterWavePixelMapDecoder();
th.Thumbnail = map;
var thumb3 = th.Thumbnail;
Assert.NotNull(thumb3);
Assert.Same(map, thumb3);
}
}
public void CloseCodecTest()
{
string file = Path.Combine(Util.ArtifactsDataPath, "test002C_P01_0.bg44");
using (FileStream stream = new FileStream(file, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
using (DjvuReader reader = new DjvuReader(stream))
{
var map = new InterWavePixelMapDecoder();
map.Decode(reader);
Assert.NotNull(map._YMap);
Assert.NotNull(map._YDecoder);
Assert.NotNull(map._CbMap);
Assert.NotNull(map._CbDecoder);
Assert.NotNull(map._CrMap);
Assert.NotNull(map._CrDecoder);
map.CloseCodec();
Assert.NotNull(map._YMap);
Assert.Null(map._YDecoder);
Assert.NotNull(map._CbMap);
Assert.Null(map._CbDecoder);
Assert.NotNull(map._CrMap);
Assert.Null(map._CrDecoder);
}
}
public void ForegroundImageTest()
{
string file = Path.Combine(Util.ArtifactsDataPath, "test037C_P01.fg44");
using (FileStream stream = new FileStream(file, FileMode.Open, FileAccess.Read, FileShare.Read))
using (DjvuReader reader = new DjvuReader(stream))
{
FG44Chunk unk = new FG44Chunk(reader, null, null, "FG44", stream.Length);
var img = unk.ForegroundImage;
Assert.NotNull(img);
Assert.NotEqual(0, img.Width);
Assert.NotEqual(0, img.Height);
var map = new InterWavePixelMapDecoder();
Assert.Equal(0, map.Width);
Assert.Equal(0, map.Height);
unk.ForegroundImage = map;
Assert.NotSame(img, map);
img = unk.ForegroundImage;
Assert.Same(img, map);
Assert.Equal(0, img.Width);
Assert.Equal(0, img.Height);
}
}
public void ProgressiveDecodeBackground_Theory(string file, long length)
{
using (FileStream fs = File.Open(file, FileMode.Open, FileAccess.Read, FileShare.Read))
using (IDjvuReader reader = new DjvuReader(fs))
{
BG44Chunk unk = new BG44Chunk(reader, null, null, "BG44", length);
unk.Initialize();
var map = new InterWavePixelMapDecoder();
var result = unk.ProgressiveDecodeBackground(map);
Assert.Same(result, map);
#if !_APPVEYOR
string dumpsDir = Path.Combine(Util.ArtifactsDataPath, "dumps");
if (!System.IO.Directory.Exists(dumpsDir))
{
System.IO.Directory.CreateDirectory(dumpsDir);
}
using (System.Drawing.Bitmap image = map.GetPixelMap().ToImage())
{
string fileName = Path.GetFileNameWithoutExtension(file);
string outFile = Path.Combine(dumpsDir, fileName + "_bg44.png");
using (FileStream stream = new FileStream(outFile, FileMode.Create))
image.Save(stream, System.Drawing.Imaging.ImageFormat.Png);
}
#endif
}
}
public void ForegroundImageTest002()
{
string filePath = Path.Combine(Util.ArtifactsDataPath, "test037C_P01.fg44");
using (FileStream stream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read))
using (DjvuReader reader = new DjvuReader(stream))
{
FG44Chunk th = new FG44Chunk(reader, null, null, "FG44", stream.Length);
Assert.Equal <ChunkType>(ChunkType.FG44, th.ChunkType);
Assert.Equal(stream.Length, th.Length);
var image = th.ForegroundImage;
Assert.NotNull(image);
Assert.IsType <InterWavePixelMapDecoder>(image);
Assert.True(image.Width >= 0 && image.Height > 0);
var map = new InterWavePixelMapDecoder();
th.ForegroundImage = map;
var image2 = th.ForegroundImage;
Assert.NotNull(image2);
Assert.NotSame(image, image2);
Assert.Same(map, image2);
Assert.True(image2.Width == 0 && image2.Height == 0);
}
}
/// <summary>
/// Decodes the background image for this chunk
/// </summary>
/// <returns></returns>
internal IInterWavePixelMap DecodeImage()
{
using (IDjvuReader reader = Reader.CloneReaderToMemory(DataOffset, Length))
{
IInterWavePixelMap pixelMap = new InterWavePixelMapDecoder();
pixelMap.Decode(reader);
return(pixelMap);
}
}
public void DecodeTest004()
{
byte[] buffer = new byte[] { 0x01, 0x48, 0x01, 0x05, 0x03, 0x3B, 0x04, 0x3F, 0x8A, 0xFF, 0xFF, 0xE9, 0xFB, 0x80, 0x3E, 0xA2 };
using (MemoryStream stream = new MemoryStream(buffer))
using (DjvuReader reader = new DjvuReader(stream))
{
var map = new InterWavePixelMapDecoder();
Assert.Throws <DjvuFormatException>(() => map.Decode(reader));
}
}
/// <summary>
/// Decodes the background image for this chunk
/// </summary>
/// <returns></returns>
internal IInterWavePixelMap DecodeBackgroundImage()
{
using (IDjvuReader reader = Reader.CloneReaderToMemory(DataOffset, Length))
{
IInterWavePixelMap background = new InterWavePixelMapDecoder();
background.Decode(reader);
return(background);
}
}
/// <summary>
/// Decodes the thumbnail image for this chunk
/// </summary>
/// <returns></returns>
internal IInterWavePixelMap DecodeThumbnailImage()
{
using (IDjvuReader reader = Reader.CloneReaderToMemory(DataOffset, Length))
{
IInterWavePixelMap thumbnail = new InterWavePixelMapDecoder();
thumbnail.Decode(reader);
return(thumbnail);
}
}
public void ImageTest035()
{
string file = Path.Combine(Util.ArtifactsDataPath, "test035C_P01_0.bg44");
using (FileStream fs = File.Open(file, FileMode.Open, FileAccess.Read, FileShare.Read))
using (IDjvuReader reader = new DjvuReader(fs))
{
BG44Chunk unk = new BG44Chunk(reader, null, null, "BG44", fs.Length);
unk.Initialize();
var map = new InterWavePixelMapDecoder();
IInterWavePixelMap result = unk.BackgroundImage;
var pixMap = result.GetPixelMap();
unk.BackgroundImage = map;
Assert.NotSame(result, unk.BackgroundImage);
Assert.Same(map, unk.BackgroundImage);
}
}
public void ProgressiveDecodeBackgroundTest()
{
string file = Path.Combine(Util.ArtifactsDataPath, "test001C_P01.fg44");
using (FileStream stream = new FileStream(file, FileMode.Open, FileAccess.Read, FileShare.Read))
using (DjvuReader reader = new DjvuReader(stream))
{
BM44Chunk unk = new BM44Chunk(reader, null, null, null, reader.Length);
Assert.Equal <ChunkType>(ChunkType.BM44, unk.ChunkType);
Assert.Equal(ChunkType.BM44.ToString(), unk.Name);
Assert.Equal <long>(0, unk.DataOffset);
Assert.Equal <long>(reader.Length, unk.Length);
var map = new InterWavePixelMapDecoder();
IInterWavePixelMap result = unk.ProgressiveDecodeBackground(map);
Assert.NotNull(map);
}
}
public void DuplicateTest001()
{
string file = Path.Combine(Util.ArtifactsDataPath, "test002C_P01_0.bg44");
using (FileStream stream = new FileStream(file, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
using (DjvuReader reader = new DjvuReader(stream))
{
var map = new InterWavePixelMapDecoder();
map.Decode(reader);
Assert.NotNull(map._YMap);
Assert.NotNull(map._YDecoder);
Assert.NotNull(map._CbMap);
Assert.NotNull(map._CbDecoder);
Assert.NotNull(map._CrMap);
Assert.NotNull(map._CrDecoder);
var dyMap = map._YMap.Duplicate();
Assert.NotNull(dyMap);
Assert.Equal(map._YMap.Width, dyMap.Width);
Assert.Equal(map._YMap.Height, dyMap.Height);
Assert.Equal(map._YMap.Blocks.Length, dyMap.Blocks.Length);
}
}
