static Texture[] ToTextureArray(GifMetadata gifMetadata, GifFrameMetadata[] gifFrameMetadata, Color32[][] imageData)
{
if (gifFrameMetadata == null || imageData == null)
{
return(new Texture[0]);
}
var frames = new Texture[imageData.Length];
int width = gifMetadata.width, height = gifMetadata.height;
for (int i = 0; i < imageData.Length; i++)
{
// Create a texture and fill it with pixel data.
Texture2D tex = new Texture2D(width, height, TextureFormat.RGBA32, false);
tex.hideFlags = HideFlags.HideAndDontSave;
tex.wrapMode = TextureWrapMode.Clamp;
tex.filterMode = FilterMode.Bilinear;
tex.anisoLevel = 0;
tex.SetPixels32(imageData[i]);
tex.Apply(false, false);
frames[i] = tex;
}
return(frames);
}
public void Identify_VerifyRepeatCount(string imagePath, uint repeatCount)
{
var testFile = TestFile.Create(imagePath);
using (var stream = new MemoryStream(testFile.Bytes, false))
{
var decoder = new GifDecoder();
IImageInfo image = decoder.Identify(Configuration.Default, stream);
GifMetadata meta = image.Metadata.GetGifMetadata();
Assert.Equal(repeatCount, meta.RepeatCount);
}
}
public void Decode_CanDecodeLargeTextComment()
{
var options = new GifDecoder();
var testFile = TestFile.Create(TestImages.Gif.LargeComment);
using (Image <Rgba32> image = testFile.CreateRgba32Image(options))
{
GifMetadata metadata = image.Metadata.GetGifMetadata();
Assert.Equal(2, metadata.Comments.Count);
Assert.Equal(new string('c', 349), metadata.Comments[0]);
Assert.Equal("ImageSharp", metadata.Comments[1]);
}
}
public void Decode_IgnoreMetadataIsTrue_CommentsAreIgnored()
{
var options = new GifDecoder
{
IgnoreMetadata = true
};
var testFile = TestFile.Create(TestImages.Gif.Rings);
using (Image <Rgba32> image = testFile.CreateRgba32Image(options))
{
GifMetadata metadata = image.Metadata.GetGifMetadata();
Assert.Equal(0, metadata.Comments.Count);
}
}
static AnimatedClip ToAnimatedClip(GifMetadata gifMetadata, GifFrameMetadata[] gifFrameMetadata, Color32[][] imageData)
{
if (gifFrameMetadata == null)
{
return(null);
}
int width = gifMetadata.width, height = gifMetadata.height;
// pre-display delay is in 0.01sec units
// we're not supporting delay time variance so just take the value of first frame.
int fps = (int)(1 / (gifFrameMetadata[0].delayTime * 0.01f));
var frames = ToTextureArray(gifMetadata, gifFrameMetadata, imageData);
return(frames != null && frames.Length > 0 ? new AnimatedClip(width, height, fps, frames) : null);
}
public void Decode_IgnoreMetadataIsFalse_CommentsAreRead()
{
var options = new GifDecoder
{
IgnoreMetadata = false
};
var testFile = TestFile.Create(TestImages.Gif.Rings);
using (Image <Rgba32> image = testFile.CreateRgba32Image(options))
{
GifMetadata metadata = image.Metadata.GetGifMetadata();
Assert.Equal(1, metadata.Comments.Count);
Assert.Equal("ImageSharp", metadata.Comments[0]);
}
}
public void NonMutatingEncodePreservesPaletteCount()
{
using (var inStream = new MemoryStream(TestFile.Create(TestImages.Gif.Leo).Bytes))
using (var outStream = new MemoryStream())
{
inStream.Position = 0;
var image = Image.Load <Rgba32>(inStream);
GifMetadata metaData = image.Metadata.GetGifMetadata();
GifFrameMetadata frameMetadata = image.Frames.RootFrame.Metadata.GetGifMetadata();
GifColorTableMode colorMode = metaData.ColorTableMode;
var encoder = new GifEncoder
{
ColorTableMode = colorMode,
Quantizer = new OctreeQuantizer(new QuantizerOptions {
MaxColors = frameMetadata.ColorTableLength
})
};
image.Save(outStream, encoder);
outStream.Position = 0;
outStream.Position = 0;
var clone = Image.Load <Rgba32>(outStream);
GifMetadata cloneMetadata = clone.Metadata.GetGifMetadata();
Assert.Equal(metaData.ColorTableMode, cloneMetadata.ColorTableMode);
// Gifiddle and Cyotek GifInfo say this image has 64 colors.
Assert.Equal(64, frameMetadata.ColorTableLength);
for (int i = 0; i < image.Frames.Count; i++)
{
GifFrameMetadata ifm = image.Frames[i].Metadata.GetGifMetadata();
GifFrameMetadata cifm = clone.Frames[i].Metadata.GetGifMetadata();
Assert.Equal(ifm.ColorTableLength, cifm.ColorTableLength);
Assert.Equal(ifm.FrameDelay, cifm.FrameDelay);
}
image.Dispose();
clone.Dispose();
}
}
public void CloneIsDeep()
{
var meta = new GifMetadata()
{
RepeatCount = 1,
ColorTableMode = GifColorTableMode.Global,
GlobalColorTableLength = 2
};
var clone = (GifMetadata)meta.DeepClone();
clone.RepeatCount = 2;
clone.ColorTableMode = GifColorTableMode.Local;
clone.GlobalColorTableLength = 1;
Assert.False(meta.RepeatCount.Equals(clone.RepeatCount));
Assert.False(meta.ColorTableMode.Equals(clone.ColorTableMode));
Assert.False(meta.GlobalColorTableLength.Equals(clone.GlobalColorTableLength));
}
public void Encode_PreservesTextData()
{
var decoder = new GifDecoder();
var testFile = TestFile.Create(TestImages.Gif.LargeComment);
using (Image <Rgba32> input = testFile.CreateRgba32Image(decoder))
using (var memoryStream = new MemoryStream())
{
input.Save(memoryStream, new GifEncoder());
memoryStream.Position = 0;
using (Image <Rgba32> image = decoder.Decode <Rgba32>(Configuration.Default, memoryStream))
{
GifMetadata metadata = image.Metadata.GetGifMetadata();
Assert.Equal(2, metadata.Comments.Count);
Assert.Equal(new string('c', 349), metadata.Comments[0]);
Assert.Equal("ImageSharp", metadata.Comments[1]);
}
}
}
public void Encode_IgnoreMetadataIsFalse_CommentsAreWritten()
{
var options = new GifEncoder();
var testFile = TestFile.Create(TestImages.Gif.Rings);
using (Image <Rgba32> input = testFile.CreateRgba32Image())
{
using (var memStream = new MemoryStream())
{
input.Save(memStream, options);
memStream.Position = 0;
using (var output = Image.Load <Rgba32>(memStream))
{
GifMetadata metadata = output.Metadata.GetGifMetadata();
Assert.Equal(1, metadata.Comments.Count);
Assert.Equal("ImageSharp", metadata.Comments[0]);
}
}
}
}
public void CloneIsDeep()
{
var meta = new GifMetadata
{
RepeatCount = 1,
ColorTableMode = GifColorTableMode.Global,
GlobalColorTableLength = 2,
Comments = new List <string> {
"Foo"
}
};
var clone = (GifMetadata)meta.DeepClone();
clone.RepeatCount = 2;
clone.ColorTableMode = GifColorTableMode.Local;
clone.GlobalColorTableLength = 1;
Assert.False(meta.RepeatCount.Equals(clone.RepeatCount));
Assert.False(meta.ColorTableMode.Equals(clone.ColorTableMode));
Assert.False(meta.GlobalColorTableLength.Equals(clone.GlobalColorTableLength));
Assert.False(meta.Comments.Equals(clone.Comments));
Assert.True(meta.Comments.SequenceEqual(clone.Comments));
}
/// <summary>
/// Initializes a new instance of the <see cref="GifMetadata"/> class.
/// </summary>
/// <param name="other">The metadata to create an instance from.</param>
private GifMetadata(GifMetadata other)
{
this.RepeatCount = other.RepeatCount;
this.ColorTableMode = other.ColorTableMode;
this.GlobalColorTableLength = other.GlobalColorTableLength;
}
public RomInfo(string decPath, bool parseImages = false)
{
byte[] contentBytes = File.ReadAllBytes(decPath);
ushort headerChecksum = CalcCrc16Modbus(contentBytes.Slice(0, HeaderChecksumOffset));
ushort romChecksumValue = BitConverter.ToUInt16(contentBytes.Slice(HeaderChecksumOffset, 2, true).Reverse().ToArray());
ValidContent = headerChecksum == romChecksumValue;
if (!ValidContent)
{
return;
}
GameTitle = new string(contentBytes.Slice(GameTitleOffset, GameTitleSize).AsChars()).TrimEnd('\0');
GameCode = new string(contentBytes.Slice(GameCodeOffset, GameCodeSize).AsChars());
if (GameCode.Length >= GameCodeLength)
{
RegionCode = GameCode[GameCodeLength - 1];
}
else
{
Log.Instance.Warn($"The gamecode for '{decPath}' is not valid: '{GameCode}'");
}
int titleInfoAddress = BitConverter.ToInt32(contentBytes.Slice(TitleInfoAddressOffset, TitleInfoAddressSize, true).Reverse().ToArray());
if (titleInfoAddress == 0x00000000)
{
return;
}
TitleInfoVersion = (TitleInfoVersions)BitConverter.ToInt16(contentBytes.Slice(titleInfoAddress, 2, true).Reverse().ToArray());
UnicodeEncoding encoding = new UnicodeEncoding(false, false);
int titleCount = TitleInfoVersion == TitleInfoVersions.Original ? 6 : TitleInfoVersion == TitleInfoVersions.ChineseTitle ? 7 : 8;
for (int i = 0; i < titleCount; i++)
{
Titles[i] = encoding.GetString(contentBytes.Slice(titleInfoAddress + TitleInfoTitlesOffset + TitleInfoTitleSize * i, TitleInfoTitleSize)).Trim('\0', '\uffff').AsNullIfEmpty();
}
if (!parseImages)
{
return;
}
// Static icon
StaticIcon = BuildImage(ParseBitmapIndices(contentBytes.Slice(titleInfoAddress + TitleInfoStaticIconOffset, IconBitmapSize)),
ParsePalette(contentBytes.Slice(titleInfoAddress + TitleInfoStaticIconOffset + IconBitmapSize, IconPaletteBytesPerColour * IconPaletteColours)));
PngMetadata pngMetadata = StaticIcon.Metadata.GetFormatMetadata(PngFormat.Instance);
pngMetadata.ColorType = PngColorType.Palette;
pngMetadata.TextData = new List <PngTextData> {
new PngTextData("description", $"Icon for the DSiWare title \"{GetFriendlyTitle()}\" (game code \"{GameCode}\").", "en-ca", "")
};
// Animated icon
if (TitleInfoVersion != TitleInfoVersions.ChineseKoreanTitlesAnimated)
{
return;
}
byte[] sequenceBytes = contentBytes.Slice(titleInfoAddress + TitleInfoAnimIconSequenceOffset, TitleInfoAnimIconSequenceFrameCount * 2);
// Non-animated icons start with 0x01000001
if (sequenceBytes[0] == 0x01 && sequenceBytes[1] == 0x00 && sequenceBytes[2] == 0x00 && sequenceBytes[3] == 0x01)
{
return;
}
byte[][] bitmapPaletteIndices = new byte[TitleInfoAnimIconBitmapCount][];
for (int i = 0; i < TitleInfoAnimIconBitmapCount; i++)
{
bitmapPaletteIndices[i] = ParseBitmapIndices(contentBytes.Slice(
titleInfoAddress + TitleInfoAnimIconBitmapsOffset + i * IconBitmapSize,
IconBitmapSize));
}
Rgba32[][] paletteColours = new Rgba32[TitleInfoAnimIconPaletteCount][];
for (int i = 0; i < TitleInfoAnimIconPaletteCount; i++)
{
paletteColours[i] = ParsePalette(contentBytes.Slice(
titleInfoAddress + TitleInfoAnimIconPalettesOffset + i * IconPaletteBytesPerColour * IconPaletteColours,
IconPaletteBytesPerColour * IconPaletteColours));
}
AnimatedIcon = new Image <Rgba32>(IconSquareDim, IconSquareDim);
for (int i = 0; i < TitleInfoAnimIconSequenceFrameCount; i++)
{
if (sequenceBytes[i * 2] == 0x00 && sequenceBytes[i * 2 + 1] == 0x00)
{
break;
}
bool flipVertical = (sequenceBytes[i * 2 + 1] & 0b10000000) >> 7 == 1;
bool flipHorizontal = (sequenceBytes[i * 2 + 1] & 0b01000000) >> 6 == 1;
byte paletteIndex = (byte)((sequenceBytes[i * 2 + 1] & 0b00111000) >> 3);
byte bitmapIndex = (byte)(sequenceBytes[i * 2 + 1] & 0b00000111);
byte frameDuration = sequenceBytes[i * 2]; // in 60Hz units
Image <Rgba32> frame = BuildImage(bitmapPaletteIndices[bitmapIndex], paletteColours[paletteIndex], flipHorizontal, flipVertical);
ImageFrame <Rgba32> aFrame = AnimatedIcon.Frames.AddFrame(frame.Frames.RootFrame);
GifFrameMetadata frameMetadata = aFrame.Metadata.GetFormatMetadata(GifFormat.Instance);
frameMetadata.FrameDelay = (int)Math.Round(frameDuration * FrameDurationConversion);
frameMetadata.DisposalMethod = GifDisposalMethod.RestoreToBackground;
}
AnimatedIcon.Frames.RemoveFrame(0);
AnimatedIcon.Metadata.GetFormatMetadata(GifFormat.Instance).RepeatCount = 0;
GifMetadata gifMetadata = AnimatedIcon.Metadata.GetFormatMetadata(GifFormat.Instance);
gifMetadata.RepeatCount = 0;
gifMetadata.Comments = new List <string> {
$"Icon for the DSiWare title \"{GetFriendlyTitle()}\" (game code \"{GameCode}\")."
};
}
