public void Read(BinaryReader reader)
{
TestName = reader.ReadString();
CurrentVersion = reader.ReadString();
Frame = reader.ReadString();
// Read image header
var width = reader.ReadInt32();
var height = reader.ReadInt32();
var format = (PixelFormat)reader.ReadInt32();
var textureSize = reader.ReadInt32();
// Read image data
var imageData = new byte[textureSize];
using (var lz4Stream = new LZ4Stream(reader.BaseStream, CompressionMode.Decompress, false, textureSize))
{
if (lz4Stream.Read(imageData, 0, textureSize) != textureSize)
throw new EndOfStreamException("Unexpected end of stream");
}
var pinnedImageData = GCHandle.Alloc(imageData, GCHandleType.Pinned);
var description = new ImageDescription
{
Dimension = TextureDimension.Texture2D,
Width = width,
Height = height,
ArraySize = 1,
Depth = 1,
Format = format,
MipLevels = 1,
};
Image = Image.New(description, pinnedImageData.AddrOfPinnedObject(), 0, pinnedImageData, false);
}
/// <summary>
/// Create an atlas texture element that contains all the information from the source texture.
/// </summary>
/// <param name="name">The reference name of the element</param>
/// <param name="texture"></param>
/// <param name="sourceRegion">The region of the element in the source texture</param>
/// <param name="borderSize">The size of the border around the element in the output atlas</param>
/// <param name="borderModeU">The border mode along the U axis</param>
/// <param name="borderModeV">The border mode along the V axis</param>
/// <param name="borderColor">The color of the border</param>
public AtlasTextureElement(string name, Image texture, RotableRectangle sourceRegion, int borderSize, TextureAddressMode borderModeU, TextureAddressMode borderModeV, Color? borderColor = null)
{
Name = name;
Texture = texture;
SourceRegion = sourceRegion;
BorderSize = borderSize;
BorderModeU = borderModeU;
BorderModeV = borderModeV;
BorderColor = borderColor ?? Color.Transparent;
}
// Note: this comparison function is not very robust and might have to be improved at some point (does not take in account RowPitch, etc...)
private bool CompareImages(Image outputImage, Image referenceImage)
{
if (outputImage.Description != referenceImage.Description)
return false;
unsafe
{
var ptr1 = (Color*)outputImage.DataPointer;
var ptr2 = (Color*)referenceImage.DataPointer;
// Fill in mock data
for (var i = 0; i < outputImage.Description.Height * outputImage.Description.Width; ++i)
{
if (*ptr1 != *ptr2)
return false;
++ptr1;
++ptr2;
}
}
return true;
}
private void SaveAndCompareTexture(Image outputImage, string fileName, ImageFileType extension = ImageFileType.Png)
{
// save
Directory.CreateDirectory(ImageOutputPath);
outputImage.Save(new FileStream(ImageOutputPath + fileName + extension.ToFileExtension(), FileMode.Create), extension);
// Compare
using(var texTool = new TextureTool())
{
var referenceImage = LoadImage(texTool, new UFile(GoldImagePath + "/" + fileName + extension.ToFileExtension()));
Assert.IsTrue(CompareImages(outputImage, referenceImage), "The texture outputted differs from the gold image.");
}
}
