Add Texture Mapping

[Zeffuro]

Tested with LiteShade

    private void UpdateLut(PostEffectColorFilterDarkBlend* part)
    {
        if (!IFramework.Get().IsInFrameworkUpdateThread || part != _part || _manager == null || PostEffectManager.Instance() != _manager)
        {
            _hook!.Original(part);
            return;
        }

        var index = (part->LutIndex + 1) % 3;
        var texture = part->LutTextures[(int)index].Value;
        if (part->LutIndex >= 3 || !IsCurveTexture(texture))
        {
            Error = "Curve texture unavailable";
            _hook!.Original(part);
            return;
        }

        part->LutIndex = index;
        var mapped = new Experimental.TextureMapResult();
        _map!(texture, 0, &mapped);
        if (mapped.Data == null)
        {
            Error = "Curve upload failed";
            return;
        }

        try
        {
            if (mapped.RowPitch != 256)
            {
                _failed = true;
                Error = "Curve texture unavailable";
                return;
            }

            _bytes.CopyTo(new Span<byte>(mapped.Data, 256));
        }
        finally
        {
            _unmap!(texture, 0);
        }
    }

Ffxiv.Dx11.2026-10-05.22-00-17.3.mp4