[REspawn]

This is an early version app that will allow you to open IV PC IMG archives, it currently only supports viewing and extracting archive contents, this is to test the waters with R* and to give people access to the files so that other tools may be developed.
This application will be updated frequently over the coming days so check here regularly for updates.

The only requirement of using this app is that you supply the path to your GTAIV.exe file.
Any problems or questions just post them here.

Updated to version 1.1 - 15th Dec 2008
Download 551kb: IMGiv.rar

[Gforce]

Great work REspawn, the first of many useful GTA IV apps i hope

[Fabio206]

Great

[FunGt]

Nice,
Can't wait to see the final version.

[ZAZ]

Yeah, execellent

[the hubster]

Any chance of getting the source code to this released or some documentation on the format?
Nice work btw.

[Shadow-Link]

QUOTE (the hubster @ Dec 14 2008, 23:23)

Any chance of getting the source code to this released or some documentation on the format? Nice work btw.

Would be awesome if you could give us some information!

And ofcourse great work!

[Jost_Vice]

Great, REspawn. This is supposed to open the IMG files of IV, but nothing about the RPFs, right?

I'm a bit confused about the file formats, both contains game files?

[REspawn]

QUOTE (Prince-Link @ Dec 14 2008, 22:39)

QUOTE (the hubster @ Dec 14 2008, 23:23) Any chance of getting the source code to this released or some documentation on the format? Nice work btw. Would be awesome if you could give us some information! And ofcourse great work!

Yes, it will be 100% open source.
Its written in C++, wxWidgets for the GUI, more info in the next day or two if R* don't sue.

@Jost_Vice - Just the IMG files, I haven't looked at the RPF files at all.

[DimazzzZ]

Great work REspawn!
And special thanks for OpenSource!

[aru]

Nice work REspawn!

[xmen]

AWESOME work mate

[xadet3]

Very nice work, looking forward to the open source release.

[listener]

Great work, REspawn, but something wrong with your size calculations.

Each RSC contains two segments: CPU (virtual) segment and GPU (physical) segment.
CPU seg contains one object with all included subobjects (in case of .wtd - rage::pgDictionary<rage::grcTexture>), GPU seg contains pixel/vertex data. You need segment sizes to resolve relocations.

CODE

struct RscHeader {  DWORD dwMagick;  DWORD dwVersion;  DWORD dwFlags; }; RscHeader header; // ... some code skipped DWORD cpuSize = (header.dwFlags&0x7FF) << (((header.dwFlags >> 11) & 0xF) + 8); DWORD gpuSize = ((header.dwFlags >> 15)&0x7FF) << (((header.dwFlags >> 26) & 0xF) + 8); // ... anothr part of code skipped int inLength = filelength (rscFile)-sizeof (RscHeader); int outLength = (int)(cpuSize+gpuSize); // ... allocate memory and read file int result = uncompress (outBuf, &outLength, inBuf, inLength);

[Shurik123]

excellent!!! thx

This post has been edited by Shurik123 on Monday, Dec 15 2008, 09:01

[aru]

QUOTE (listener @ Dec 15 2008, 03:51)

Great work, REspawn, but something wrong with your size calculations.

Heh, thats because the sizes that are displayed is the compressed RSC sizes (theres nothing wrong with that) and when exported, they get decompressed.

Ideally, I think each RSC should be exported as-is (compressed), and let the future RSC tools deal with the de/compression of them. If you look at the RSC files that are outside of the .img/.rpf archives (.whm, etc).. you'll notice that they are still compressed. However, the decompressed version is still useful for format REing

[listener]

aru, look at this:

CODE

15.12.2008  10:38         5 771 264 brook_new_roads.wtd.listener 15.12.2008  10:36         5 788 518 brook_new_roads.wtd.respawn Input file: brook_new_roads.wtd Loaded resource file: version=8, CPU_size = 0x1000, GPU_size = 0x580000 Output file: brook_new_roads.wtd.listener in = 3137524, out = 5771264 OutSize = 5771264, err = 0 Complete.

[uNi]

Awesome REspawn, this will be handy.

[mr.Dageron]

Your work is cool, REspawn
I have got just only one question: why we need to have GTAIV.exe to make this programm workable? Can you put this spesial parametres wich your program "read from exe" right into it?

[simkas]

Nice.
But, is there a way to open the .wtd texture files yet?