using BCnEncoder.Shared;

using BCnEncoder.Shared.ImageFiles;

namespace BCnEncoder.Encoder

{

internal class Bc5BlockEncoder : BaseBcBlockEncoder<Bc5Block, RawBlock4X4Rgba32>

{

private readonly Bc4ComponentBlockEncoder redBlockEncoder;

private readonly Bc4ComponentBlockEncoder greenBlockEncoder;

public Bc5BlockEncoder(ColorComponent component1, ColorComponent component2)

{

redBlockEncoder = new Bc4ComponentBlockEncoder(component1);

greenBlockEncoder = new Bc4ComponentBlockEncoder(component2);

}

public override Bc5Block EncodeBlock(RawBlock4X4Rgba32 block, CompressionQuality quality)

{

return new Bc5Block

{

redBlock = redBlockEncoder.EncodeBlock(block, quality),

greenBlock = greenBlockEncoder.EncodeBlock(block, quality)

};

}

public override GlInternalFormat GetInternalFormat()

{

return GlInternalFormat.GlCompressedRedGreenRgtc2Ext;

}

public override GlFormat GetBaseInternalFormat()

{

return GlFormat.GlRg;

}

public override DxgiFormat GetDxgiFormat()

{

return DxgiFormat.DxgiFormatBc5Unorm;

}

}

}