/// <summary>
/// Loads 2d texture data
/// </summary>
private static object Load2dTexture( string streamUrl, BinaryReader reader, TextureFileFormatVersion1.Header header, bool returnTextureData, bool generateMipMaps )
{
Texture2dData[] data = Load2dTextureData( reader, header );
if ( returnTextureData )
{
return data;
}
ITexture2d texture = Graphics.Factory.CreateTexture2d( );
if ( generateMipMaps )
{
if ( data.Length > 1 )
{
AssetsLog.Warning( "Source \"{0}\" contained mip-maps that are being discarded in favour of generated ones", streamUrl );
}
texture.Create( data[ 0 ], true );
return texture;
}
texture.Create( data );
return texture;
}
/// <summary>
/// Loads 2d texture data from the specified stream
/// </summary>
private static Texture2dData[] Load2dTextureData( BinaryReader reader, TextureFileFormatVersion1.Header header )
{
Texture2dData[] textureDataArray = new Texture2dData[ header.TextureDataEntries ];
for ( int textureDataCount = 0; textureDataCount < header.TextureDataEntries; ++textureDataCount )
{
TextureFileFormatVersion1.Group textureGroup = TextureFileFormatVersion1.Group.Read( reader );
if ( textureGroup.GroupId != GroupIdentifier.Texture2dDataGroup )
{
throw new FileLoadException( "Expected texture group" );
}
int width = reader.ReadInt32( );
int height = reader.ReadInt32( );
Texture2dData texData = new Texture2dData( );
texData.Create( width, height, header.Format );
reader.Read( texData.Bytes, 0, texData.Bytes.Length );
textureDataArray[ textureDataCount ] = texData;
}
return textureDataArray;
}
/// <summary>
/// Loads a 3d texture from the specified stream
/// </summary>
private static object Load3dTexture( string streamUrl, BinaryReader reader, TextureFileFormatVersion1.Header header, bool returnTextureData, bool generateMipMaps )
{
Texture3dData[] data = Load3dTextureData( reader, header );
if ( returnTextureData )
{
return data;
}
ITexture3d texture = Graphics.Factory.CreateTexture3d( );
texture.Create( data[ 0 ] ); // TODO: AP: Add mipmap generation
return texture;
}
/// <summary>
/// Writes a group with a dummy length value to the binary writer
/// </summary>
private static long BeginGroup( BinaryWriter writer, TextureFileFormatVersion1.Group group )
{
long startOfGroup = writer.BaseStream.Length;
group.Write( writer );
return startOfGroup;
}