public static GLTextureCube FromDDS(DDS dds, DDS mipLevel2)
{
var surfaces = dds.GetSurfaces(0, false, 6);
var surfacesMip = mipLevel2.GetSurfaces(0, false, 6);
int size = (int)dds.Width;
GLTextureCube texture = new GLTextureCube();
texture.Width = size; texture.Height = size;
texture.Bind();
InternalFormat format = InternalFormat.CompressedRgbaS3tcDxt5Ext;
if (dds.Platform.OutputFormat == TexFormat.BC6H_UF16)
{
format = InternalFormat.CompressedRgbBptcUnsignedFloat;
}
if (dds.Platform.OutputFormat == TexFormat.BC6H_SF16)
{
format = InternalFormat.CompressedRgbBptcSignedFloat;
}
for (int i = 0; i < 6; i++)
{
for (int j = 0; j < dds.MipCount; j++)
{
int mipWidth = CalculateMipDimension(texture.Width, j);
int mipHeight = CalculateMipDimension(texture.Height, j);
int imageSize = GLFormatHelper.CalculateImageSize(mipWidth, mipHeight, format);
if (j == 0)
{
GL.CompressedTexImage2D(TextureTarget.TextureCubeMapPositiveX + i, j,
format,
mipWidth, mipHeight,
0, imageSize, surfaces[i].mipmaps[0]);
}
else if (j == 1)
{
GL.CompressedTexImage2D(TextureTarget.TextureCubeMapPositiveX + i, j,
format,
mipWidth, mipHeight,
0, imageSize, surfacesMip[i].mipmaps[0]);
}
else
{
GL.CompressedTexImage2D(TextureTarget.TextureCubeMapPositiveX + i, j,
format,
mipWidth, mipHeight,
0, imageSize, IntPtr.Zero);
}
}
}
texture.Unbind();
return(texture);
}
public static GLTextureCubeArray FromDDS(DDS dds)
{
int size = (int)dds.Width;
GLTextureCubeArray texture = new GLTextureCubeArray();
texture.Width = size;
texture.Height = size;
texture.Bind();
var format = dds.Platform.OutputFormat;
var surfaces = dds.GetSurfaces();
List <byte[]> cubemapSurfaces = new List <byte[]>();
for (int a = 0; a < surfaces.Count; a++)
{
cubemapSurfaces.Add(surfaces[a].mipmaps[0]);
}
int depth = surfaces.Count;
Console.WriteLine($"depth {depth}");
byte[] buffer = ByteUtils.CombineArray(cubemapSurfaces.ToArray());
for (int j = 0; j < dds.MipCount; j++)
{
int mipWidth = CalculateMipDimension(texture.Width, j);
int mipHeight = CalculateMipDimension(texture.Height, j);
if (dds.IsBCNCompressed())
{
var internalFormat = GLFormatHelper.ConvertCompressedFormat(format, true);
GLTextureDataLoader.LoadCompressedImage(texture.Target, mipWidth, mipHeight, depth, internalFormat, buffer, j);
}
else
{
var formatInfo = GLFormatHelper.ConvertPixelFormat(format);
if (dds.Platform.OutputFormat == TexFormat.RGBA8_UNORM)
{
formatInfo.Format = PixelFormat.Rgba;
}
GLTextureDataLoader.LoadImage(texture.Target, mipWidth, mipHeight, depth, formatInfo, buffer, j);
}
}
GL.TexParameter(texture.Target, TextureParameterName.TextureBaseLevel, 0);
GL.TexParameter(texture.Target, TextureParameterName.TextureMaxLevel, 13);
GL.GenerateMipmap(GenerateMipmapTarget.TextureCubeMapArray);
texture.Unbind();
return(texture);
}
