I am trying to write a simple script to extract images of .dref format and It turns out GARbro knows how to deal with it.
With the GUI, I can preview and extract images of `.dref` format properly.
If I understand the code correctly, each psb:// location recorded in a *.dref file corresponds to an entry inside a *.dpak archive and meta data such as image offset information are also stored in order to properly overlay the images.
How does GARbro give the right image overlay then? I am so confused.
Did I understand the code wrong? Or do I read the wrong part of the code? Is this part of the code even used by the program to do the image overlay? Or the correct code is actually somewhere else?
I am trying to write a simple script to extract images of .dref format and It turns out GARbro knows how to deal with it. With the GUI, I can preview and extract images of `.dref` format properly.
If I understand the code correctly, each
psb://location recorded in a*.dreffile corresponds to an entry inside a*.dpakarchive and meta data such as image offset information are also stored in order to properly overlay the images.In GARbro, it is done in ArcFormats/Emote/ArcPSB.cs and ArcFormats/Emote/ImageDREF.cs.
However, after looking more into the code, I found something strange.
When PsbOpener.OpenArcFile is called, the program attempts to read entries from a
*.dpakfile by executing PsbReader.GetTextures(). If it fails, then PsbReader.GetLayers() and PsbReader.GetChunks() until it finally succeeds. My observation is that when I open a*.dpakfile, the first two always fail and only PsbReader.GetChunks() retrieves data. However, the image offset variable (TexEntry.OffsetXandTexEntry.OffsetY) can only be stored using PsbReader.GetLayers() not PsbReader.GetChunks() and hence the finalArcFileinstance has no information about image offsets.How does GARbro give the right image overlay then? I am so confused. Did I understand the code wrong? Or do I read the wrong part of the code? Is this part of the code even used by the program to do the image overlay? Or the correct code is actually somewhere else?
Any comments and suggestions are appreciated.