public void ConvertFromAl(AlImage image, Stream destStream)
{
List <byte[]> mips;
if (image.PixelFormat == "ETC1")
{
mips = image.Mipmaps;
}
else if (image.PixelFormat == "EC1A")
{
// Give first half of the mips
mips = new List <byte[]>();
foreach (var mip in image.Mipmaps)
{
byte[] newMip = new byte[mip.Length / 2];
Buffer.BlockCopy(mip, 0, newMip, 0, newMip.Length);
mips.Add(newMip);
}
}
else
{
throw new ArgumentException("Pixel format not supported.", nameof(image));
}
var ktx = KtxCreator.Create(GlDataType.Compressed, GlPixelFormat.GL_RGB, GlInternalFormat.GL_ETC1_RGB8_OES,
image.Width, image.Height, mips, new Dictionary <string, MetadataValue>());
KtxWriter.WriteTo(ktx, destStream);
}
public void ValidityWithValidSamplesTest()
{
// Arrange
byte[] inputBytes1 = File.ReadAllBytes(CommonFiles.validSample1Filename);
byte[] inputBytes2 = File.ReadAllBytes(CommonFiles.validSample2Filename);
byte[] inputBytes3 = File.ReadAllBytes(CommonFiles.validSample3Filename);
byte[] inputBytes4 = File.ReadAllBytes(CommonFiles.validSample4Filename);
MemoryStream msWriter1 = new MemoryStream();
MemoryStream msWriter2 = new MemoryStream();
MemoryStream msWriter3 = new MemoryStream();
MemoryStream msWriter4 = new MemoryStream();
// Act
KtxStructure ktxStructure1 = null;
KtxStructure ktxStructure2 = null;
KtxStructure ktxStructure3 = null;
KtxStructure ktxStructure4 = null;
using (MemoryStream msReader = new MemoryStream(inputBytes1))
{
ktxStructure1 = KtxLoader.LoadInput(msReader);
}
using (MemoryStream msReader = new MemoryStream(inputBytes2))
{
ktxStructure2 = KtxLoader.LoadInput(msReader);
}
using (MemoryStream msReader = new MemoryStream(inputBytes3))
{
ktxStructure3 = KtxLoader.LoadInput(msReader);
}
using (MemoryStream msReader = new MemoryStream(inputBytes4))
{
ktxStructure4 = KtxLoader.LoadInput(msReader);
}
KtxWriter.WriteTo(ktxStructure1, msWriter1);
KtxWriter.WriteTo(ktxStructure2, msWriter2);
KtxWriter.WriteTo(ktxStructure3, msWriter3);
KtxWriter.WriteTo(ktxStructure4, msWriter4);
// Assert
CollectionAssert.AreEqual(inputBytes1, msWriter1.ToArray());
CollectionAssert.AreEqual(inputBytes2, msWriter2.ToArray());
CollectionAssert.AreEqual(inputBytes3, msWriter3.ToArray());
CollectionAssert.AreEqual(inputBytes4, msWriter4.ToArray());
}
public void NullOrInvalidInputsTest()
{
// Arrange
KtxStructure structure = null;
MemoryStream msWriter = new MemoryStream();
MemoryStream msWriterNonWriteable = new MemoryStream(new byte[] { 0 }, writable: false);
// Act
using (FileStream input = new FileStream(CommonFiles.validSample1Filename, FileMode.Open))
{
structure = KtxLoader.LoadInput(input);
}
// Assert
Assert.Throws <NullReferenceException>(() => { KtxWriter.WriteTo(null, msWriter); });
Assert.Throws <NullReferenceException>(() => { KtxWriter.WriteTo(structure, null); });
Assert.Throws <ArgumentException>(() => { KtxWriter.WriteTo(structure, msWriterNonWriteable); });
}
public void ConvertFromAlAlt(AlImage image, Stream destStream)
{
if (image.PixelFormat != "EC1A")
{
throw new ArgumentException("Pixel format does not have alternate representation.", nameof(image));
}
// Give second half of the mips
var mips = new List <byte[]>();
foreach (var mip in image.Mipmaps)
{
byte[] newMip = new byte[mip.Length / 2];
Buffer.BlockCopy(mip, newMip.Length, newMip, 0, newMip.Length);
mips.Add(newMip);
}
var ktx = KtxCreator.Create(GlDataType.Compressed, GlPixelFormat.GL_RGB, GlInternalFormat.GL_ETC1_RGB8_OES,
image.Width, image.Height, mips, new Dictionary <string, MetadataValue>());
KtxWriter.WriteTo(ktx, destStream);
}