/// <summary>
/// Decodes a RGBE formatted image into a plain floating-point image
/// </summary>
/// <param name="_Source">The source RGBE formatted image</param>
/// <param name="_bSourceIsXYZ">Tells if the source image is encoded as XYZE rather than RGBE</param>
/// <param name="_Target">The target float4 image</param>
/// <param name="_bTargetNeedsXYZ">Tells if the target needs to be in CIE XYZ space (true) or RGB (false)</param>
/// <param name="_ColorProfile">The color profile for the image</param>
public static void DecodeRGBEImage( PF_RGBE[,] _Source, bool _bSourceIsXYZ, float4[,] _Target, bool _bTargetNeedsXYZ, ColorProfile _ColorProfile )
{
if ( _bSourceIsXYZ ^ _bTargetNeedsXYZ )
{ // Requires conversion...
if ( _bSourceIsXYZ )
{ // Convert from XYZ to RGB
for ( int Y=0; Y < _Source.GetLength( 1 ); Y++ )
for ( int X=0; X < _Source.GetLength( 0 ); X++ )
_Target[X,Y] = _ColorProfile.XYZ2RGB( new float4( _Source[X,Y].DecodedColor.x, _Source[X,Y].DecodedColor.y, _Source[X,Y].DecodedColor.z, 1.0f ) );
}
else
{ // Convert from RGB to XYZ
for ( int Y=0; Y < _Source.GetLength( 1 ); Y++ )
for ( int X=0; X < _Source.GetLength( 0 ); X++ )
_Target[X,Y] = _ColorProfile.RGB2XYZ( new float4( _Source[X,Y].DecodedColor.x, _Source[X,Y].DecodedColor.y, _Source[X,Y].DecodedColor.z, 1.0f ) );
}
return;
}
// Simply decode vector and leave as-is
for ( int Y=0; Y < _Source.GetLength( 1 ); Y++ )
for ( int X=0; X < _Source.GetLength( 0 ); X++ )
_Target[X,Y] = new float4( _Source[X,Y].DecodedColor.x, _Source[X,Y].DecodedColor.y, _Source[X,Y].DecodedColor.z, 1.0f );
}
/// <summary>
/// Decodes a RGBE formatted image into a plain floating-point image
/// </summary>
/// <param name="_Source">The source RGBE formatted image</param>
/// <param name="_bSourceIsXYZ">Tells if the source image is encoded as XYZE rather than RGBE</param>
/// <param name="_bTargetNeedsXYZ">Tells if the target needs to be in CIE XYZ space (true) or RGB (false)</param>
/// <param name="_ColorProfile">The color profile for the image</param>
/// <returns>A HDR image as floats</returns>
public static float4[,] DecodeRGBEImage( PF_RGBE[,] _Source, bool _bSourceIsXYZ, bool _bTargetNeedsXYZ, ColorProfile _ColorProfile )
{
if ( _Source == null )
return null;
float4[,] Result = new float4[_Source.GetLength( 0 ), _Source.GetLength( 1 )];
DecodeRGBEImage( _Source, _bSourceIsXYZ, Result, _bTargetNeedsXYZ, _ColorProfile );
return Result;
}