public static GLTexture2DArray FromDDS(DDS dds)
{
GLTexture2DArray texture = new GLTexture2DArray();
texture.Width = (int)dds.Width; texture.Height = (int)dds.Height;
texture.Bind();
GL.TexParameter(texture.Target, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
GL.TexParameter(texture.Target, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.LinearMipmapLinear);
GL.TexParameter(texture.Target, TextureParameterName.TextureBaseLevel, 0);
GL.TexParameter(texture.Target, TextureParameterName.TextureMaxLevel, 13);
GL.TexParameter(texture.Target, TextureParameterName.TextureWrapS, (int)TextureWrapMode.ClampToEdge);
GL.TexParameter(texture.Target, TextureParameterName.TextureWrapT, (int)TextureWrapMode.ClampToEdge);
GL.TexParameter(texture.Target, TextureParameterName.TextureWrapR, (int)TextureWrapMode.ClampToEdge);
InternalFormat format = InternalFormat.Rgba8;
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) * (int)dds.ArrayCount;
List <byte[]> levels = new List <byte[]>();
for (int i = 0; i < dds.ArrayCount; i++)
{
var data = dds.GetDecodedSurface(i, j);
if (i == 0 || i == 1)
{
data = FlipHorizontal(mipWidth, mipHeight, data);
}
levels.Add(data);
}
var surface = ByteUtils.CombineArray(levels.ToArray());
if (format == InternalFormat.Rgba8)
{
GL.TexImage3D(TextureTarget.Texture2DArray, j,
PixelInternalFormat.Rgba,
mipWidth, mipHeight, (int)dds.ArrayCount, 0, PixelFormat.Bgra, PixelType.UnsignedByte,
surface);
}
else
{
GL.CompressedTexImage3D(TextureTarget.Texture2DArray, j,
format,
mipWidth, mipHeight, (int)dds.ArrayCount,
0, imageSize, surface);
}
}
texture.Unbind();
return(texture);
}
public static GLTextureCube FromDDS(DDS dds, bool flipY = false, bool isBGRA = false)
{
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;
}
if (dds.Platform.OutputFormat == TexFormat.RGBA8_UNORM)
{
format = InternalFormat.Rgba8;
}
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);
var surface = dds.GetDeswizzledSurface(i, j);
if (dds.Parameters.UseSoftwareDecoder || flipY)
{
surface = dds.GetDecodedSurface(i, j);
format = InternalFormat.Rgba8;
}
if (flipY)
{
surface = FlipVertical(mipWidth, mipHeight, surface);
}
if (format == InternalFormat.Rgba8)
{
GL.TexImage2D(TextureTarget.TextureCubeMapPositiveX + i, j,
PixelInternalFormat.Rgba,
mipWidth, mipHeight, 0, PixelFormat.Rgba, PixelType.UnsignedByte,
surface);
}
else
{
GL.CompressedTexImage2D(TextureTarget.TextureCubeMapPositiveX + i, j,
format,
mipWidth, mipHeight,
0, imageSize, surface);
}
}
}
texture.Unbind();
return(texture);
}
