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 KtxCreatorValidInputTest()
{
// Arange
byte[] textureLevel0 = new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 }; // Not a valid ATSC block most likely!
List <byte[]> textureDatas = new List <byte[]>()
{
textureLevel0
};
// Act
// Assert
Assert.DoesNotThrow(() => KtxCreator.Create(GlDataType.Compressed, GlPixelFormat.GL_RGBA, GlInternalFormat.GL_COMPRESSED_RGBA_ASTC_8x8_KHR, 8, 8, textureDatas, new System.Collections.Generic.Dictionary <string, MetadataValue>()));
}
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);
}
