/// <summary>
/// Return the n-th index of a given data block type
/// </summary>
private int FindBlockIndexByType(enumBlockType type, int number)
{
if ((number < 0) || (number >= Head.BlockCount))
{
return(-1);
}
for (int i = 0; i < Head.BlockCount; i++)
{
tyBlock block = Head.Block[i];
//- find all images
if (block.BlockType == type)
{
/// return image if
number--;
if (number < 0)
{
return(i);
}
}
}
return(-1);
}
//-------------------------------------//
private void SetHeadBlockVars(ref tyBlock block)
{
block.BlockType = (enumBlockType)reader.ReadIntBE();
block.DWord2 = reader.ReadIntBE();
block.FrameIndex = reader.ReadIntBE();
block.offset = reader.ReadIntBE();
block.size = reader.ReadIntBE();
block.headerSize = 0x6C0;
if (block.headerSize > block.size)
{
block.headerSize = block.size;
}
block.headerOffset = 0;
block.imageOffset = block.headerSize;
block.imageSize = block.size - block.imageOffset;
block.DWord6 = reader.ReadIntBE();
block.DWord7 = reader.ReadIntBE();
block.DWord8 = reader.ReadIntBE();
if (block.BlockType == enumBlockType.enumBlockTypeImage || block.BlockType == enumBlockType.enumBlockTypeVisible)
{
this.m_imageCount++;
}
}
/// <summary>
/// return the data of an image
/// </summary>
public byte[] GetImageData(int imageIndex)
{
int blockIndex = GetImageBlockIndex(imageIndex);
if (blockIndex < 0)
{
return(null);
}
tyBlock block = Head.Block[blockIndex];
return(reader.ReadByte(block.size, block.offset));
}
/// <summary>
/// Return the info text of this file
/// </summary>
public string GetTextInfo(int index = 0)
{
var blockIndex = FindBlockIndexByType(enumBlockType.enumBlockTypeTextInfo, index);
if (blockIndex < 0)
{
return(string.Empty);
}
tyBlock block = Head.Block[blockIndex];
return(reader.ReadStr(block.size, block.offset));
}
/// <summary>
/// return the data of an image
/// </summary>
public byte[] GetImageData(int imageIndex)
{
int blockIndex = GetImageBlockIndex(imageIndex);
if (blockIndex < 0)
{
logging.addError("getImageData(imageIndex) fail - ImageIndex: " + imageIndex + " not found");
return(null);
}
//- Header zurückgeben
tyBlock block = Head.Block[blockIndex];
return(reader.ReadByte(block.size, block.offset));
}
//-------------------------------------//
private void SetHeadBlockVars(ref tyBlock block)
{
block.BlockType = (enumBlockType)reader.ReadIntBE();
block.DWord2 = reader.ReadIntBE();
block.FrameIndex = reader.ReadIntBE();
block.offset = reader.ReadIntBE(); // starts at 0
block.size = reader.ReadIntBE();
//- head is wlways 0x6C0 Byte in lengtg
block.headerSize = 0x6C0;
if (block.headerSize > block.size)
{
block.headerSize = block.size;
}
block.headerOffset = 0;
block.imageOffset = block.headerSize;
block.imageSize = block.size - block.imageOffset;
block.DWord6 = reader.ReadIntBE();
block.DWord7 = reader.ReadIntBE();
block.DWord8 = reader.ReadIntBE();
if (block.BlockType == enumBlockType.enumBlockTypeImage)
{
this.m_imageCount++;
}
}