QJ.net Game Discussion - PSP, Xbox, Wii, PS3, PSP Homebrew, and PSP Guides

**FreePlay** · 07-20-2008, 04:51 PM

I've been busy...

I put together a minimal SDK for BD-J development. Enjoy.

Download (Sendspace)

Quote:

Originally Posted by Readme

BD-J for PS3 minimal devkit by FreePlay

NOTE: For this to work properly, you *MUST* copy it to the root of your C: drive - that is, to C:\bdj-ps3. DO NOT rename the folder.

Included is everything you'll need to get started except for:
1. a working installation of JDK, the Java Development Kit (get that from http://java.sun.com/javase/downloads/index.jsp - currently, the latest version is JDK 6 Update 7)
2. a copy of bdj.jar, the BD-J API. I can't provide this, since you need a license to use it; however, if you have a PC program capable of making or playing Blu-Ray discs - like Nero or PowerDVD - you can get this file from there. (In Nero 8, the file is located in C:\program Files\Common Files\Nero\NeroBLC\BDJ\jl ib .)

I don't have any real documentation on BD-J, though I'm sure you can find some on the HDCookBook website. In the 'docs' folder is some basic info on BD-J on a very high level.

So far as I can tell, there are some pretty strict limitations on the PS3's implementation of BD-J:
1. You cannot read or write local files.
2. You cannot list the contents of a directory.

I may be wrong, so feel free to correct me, but I ran a few tests and couldn't do those things.

I've also included a sample Hello World application and silenoz's RSS reader, as well as a build.bat file for building, packing, and signing the programs. This batch script is pretty much universal, unless you need to add in other JAR files for your compilation.

Source files for each project should go in a folder called root\org\homebrew. For example, if you make a project called "Test App", in your "Test App" folder you'll place the universal build.bat , then make a root\org\homebrew folder and place your .java files in there. The 'root' folder will become the root of your JAR file; any files you place in that structure will become part of the JAR.

The 'disc files' folder contains the file structure for what you'll copy to your storage device. Once you've built your 00000.jar file, copy it to 'AVCHD\BDMV\JAR\' and you'll be ready to test it.

Good luck!

**zmathue** · 07-20-2008, 05:25 PM

BD-J.jar is also in trial software, at least cyberlink power dvd
in navfilter dir.

**Cooguy1212** · 07-20-2008, 05:26 PM

Nice Freeplay! Your bringing a little PS3 scene here!

Deathinnate · 07-20-2008, 05:34 PM

I'm supposing there won't be a Linux version anytime soon?

**FreePlay** · 07-20-2008, 05:35 PM

There could be; it's just a matter of snooping through the build.bat file and tweaking the commands (since Java is pretty ubiquitous).

**Realn0whereman** · 07-20-2008, 06:55 PM

thanks you've cleared up alot for me

. i might write something.

**Cooguy1212** · 07-20-2008, 07:40 PM

Quote:

Originally Posted by Realn0whereman

thanks you've cleared up alot for me

. i might write something.

Good luck

**reaperchad** · 07-20-2008, 11:54 PM

Sony is just watching with a trigger in their hands *system update. Hopefully they will overlook this as long as no real exploits come out that would allow cfw.

**BigSanFrey** · 07-21-2008, 12:27 AM

I am sure that FreePlay doesn't support piracy (i doubt DAX does either), and he wouldn't add an ISO loader, which i reckon heaps of people would like!

**Sly_Ripper** · 07-21-2008, 02:55 AM

You know, you can't just add a iso loader to it. If even it was possible it would take a hell of a lot of work and time.

**reaperchad** · 07-21-2008, 03:00 AM

Quote:

Originally Posted by BigSanFrey

I am sure that FreePlay doesn't support piracy (i doubt DAX does either), and he wouldn't add an ISO loader, which i reckon heaps of people would like!

Where the hell did you think that up? This has nothing to do with an ISO loader, concentrate on the thread's subject.

SamS · 07-21-2008, 04:21 AM

Good work FreePlay

We also know that BD-J uses Java version 1.3. I have also been looking around at some java apps and emulators. Here are a few:

JPC (x86 Based Emulator capable of running linux and dos games)
http://www-jpc.physics.ox.ac.uk/index.html

PSP (In progress)
http://www.jpcsp.org/

List of standalone games
http://www.codebeach.com/index.asp?t...ryID=11&Page=1

All look decent enough to port. Not sure how you would go about it though. May need a lot of rebuilding.

SamS

**JordanBlack68** · 07-21-2008, 05:12 AM

Pretty Impressive FreePlay

eldiablov · 07-21-2008, 05:21 AM

Thanks for this Freeplay, it sure will help me. I was having a lot of trouble setting up ...

Thanks for the list SamS

**zmathue** · 07-21-2008, 07:43 AM

Quote:

Originally Posted by reaperchad

Sony is just watching with a trigger in their hands *system update. Hopefully they will overlook this as long as no real exploits come out that would allow cfw.

um.. No, avchd is used for personal high def camcorders. Sony and many other companies support this in there blu-ray players. As I have said before this is not an exploit this isn't even any new news, it been around as long as blu-ray players have been around.

**bmfgeorgin2** · 07-21-2008, 08:05 AM

wait what does this mean? you made a hello world so homebrew?

**Moose** · 07-21-2008, 08:09 AM

Quote:

Originally Posted by bmfgeorgin2

wait what does this mean? you made a hello world so homebrew?

Wow... How about reading the first post?

**bmfgeorgin2** · 07-21-2008, 08:17 AM

so from my reading of the first post and not understanding 90% of it, we have minimal homebrew now on PS3?

**jgtc_lover** · 07-21-2008, 08:24 AM

Quote:

Originally Posted by bmfgeorgin2

so from my reading of the first post and not understanding 90% of it, we have minimal homebrew now on PS3?

I think it's just java programs that have to be written into something. When it comes to this stuff, i b nub, so I don't mean to offend anyone with my lack of knowledge.

**Brainbeat** · 07-21-2008, 11:23 AM

Thank you freeplay

**MiKeY188** · 07-21-2008, 12:14 PM

Thanks man must get the java book back out lol

SamS · 07-21-2008, 12:36 PM

Yes we have minimum homebrew, ie. we can only run apps and games that are written and compiled in java 1.3. There are many out there but most need rebuilding alot.

**Brainbeat** · 07-21-2008, 02:47 PM

wht about 1.1 1.2 can they be recoded.
Nope 1.3 only

**Nero** · 07-21-2008, 02:51 PM

Thanks for this, it will come in handy

**zmathue** · 07-21-2008, 05:03 PM

Quote:

Originally Posted by Brainbeat

wht about 1.1 1.2 can they be recoded.
Nope 1.3 only

It should be any before 1.3 (actually it can be 1.4 but freeplay has it set for 1.3) because they build an new release on top of and old one for compatibility.

**Realn0whereman** · 07-21-2008, 06:43 PM

Quote:

Originally Posted by zmathue

It should be any before 1.3 (actually it can be 1.4 but freeplay has it set for 1.3) because they build an new release on top of and old one for compatibility.

doesn't the ps3 run 1.3? so 1.4 would be a no go? im probably missing something.

**zmathue** · 07-21-2008, 08:23 PM

Quote:

Originally Posted by http://www.earfeast.com/software/blu-ray/

It’s crucial to change your “Java Compiler” settings to use compiler compliance level 1.4. If you use 5.0, the classes apparently won’t load. This suggests that the BD-J implementations are based on Java 1.4, and that compiling under a newer JDK introduces new features that older VMs can’t handle.

Well some places say some things and some places say others, so I guess its safer to go with 1.3.

**Brainbeat** · 07-22-2008, 03:25 AM

anyone have some good references for java learning?

**Brainbeat** · 07-22-2008, 06:09 AM

Heres an alternative rss reader mod. it reads rss headlines only, and im hoping i can improve the code, so that it reads all info.linked to qj.net
http://www.sendspace.com/file/6f8e1f

**Realn0whereman** · 07-22-2008, 06:42 AM

Quote:

Originally Posted by Brainbeat

anyone have some good references for java learning?

depends how much you know already. once you know a programming language its not hard to pick up on another as most share the same concepts.

07-20-2008, 05:26 PM	#3
Cooguy1212 Join Date: Jan 2007 Location: Hyrule Posts: 626 Trader Feedback: 0	Nice Freeplay! Your bringing a little PS3 scene here! __________________ PSN-Cooguy1212 feel free add me [QUOTE]Anyways, Obama won. Suck it up sore loser. Now go ahead and leave your country like you said you would so nobody has to endure your crap any longer. Just please dear god don't come to Canada. Nobody would welcome you here with your close-minded bull****.[/QUOTE]

07-20-2008, 05:35 PM	#5
FreePlay Join Date: Dec 2005 Location: h0000000rj Posts: 12,857 Trader Feedback: 0	There could be; it's just a matter of snooping through the build.bat file and tweaking the commands (since Java is pretty ubiquitous). __________________ [qj now fails.]

07-20-2008, 06:55 PM	#6
Realn0whereman Mindless Self Indulgence Join Date: Oct 2005 Location: afk Posts: 7,212 Trader Feedback: 0	thanks you've cleared up alot for me . i might write something. __________________ PSN:realn0whereman NEW MSI ALBUM APRIL 29TH: IF orgasm

07-20-2008, 11:54 PM	#8
reaperchad Join Date: Feb 2007 Location: Six Flags Posts: 649 Trader Feedback: 0	Sony is just watching with a trigger in their hands system update. Hopefully they will overlook this as long as no real exploits come out that would allow cfw. __________________ Have you every wanted to be reviewed? Find out what people think of you at the [B]ONLY[/B] QJ review thread. [B][COLOR="Red"]Point Donations Welcome.[/COLOR] [SPOILER="Quotes"][QUOTE=Realn0whereman]yeah ive noticed reaperchad is a walking talking typing esteem booster.[/QUOTE] [/SPOILER] [/B][url=http://forums.qj.net/showthread.php?t=128599][img]http://img259.imageshack.us/img259/1088/83323393pi9.png[/img][/url] Last edited by reaperchad; 07-21-2008 at 03:00 AM..*

07-21-2008, 12:27 AM	#9
BigSanFrey My Mood: Join Date: Feb 2007 Location: Melbourne, Australia Posts: 1,773 Trader Feedback: 0	I am sure that FreePlay doesn't support piracy (i doubt DAX does either), and he wouldn't add an ISO loader, which i reckon heaps of people would like! __________________ [B][FONT="Verdana"]WHA!?[/FONT][/B]

07-20-2008, 05:25 PM	#2
zmathue Join Date: Nov 2005 Location: NoWhere . . . . Posts: 1,266 Trader Feedback: 0	BD-J.jar is also in trial software, at least cyberlink power dvd in navfilter dir.

07-20-2008, 05:34 PM	#4
Deathinnate Join Date: Jan 2008 Posts: 46 Trader Feedback: 0	I'm supposing there won't be a Linux version anytime soon?

07-21-2008, 02:55 AM	#10
Sly_Ripper Join Date: Feb 2007 Location: Little Big City Posts: 453 Trader Feedback: 0	You know, you can't just add a iso loader to it. If even it was possible it would take a hell of a lot of work and time. __________________ [CENTER][SIZE=3][SIZE=1][URL="http://PS3TrophyCards.com"][IMG]http://i36.tinypic.com/2n07f3p.png[/IMG][/URL] PSN: Sly-Ripper[/SIZE] [/SIZE] [/CENTER]

07-21-2008, 04:21 AM	#12
SamS Join Date: Apr 2008 Posts: 4 Trader Feedback: 0	Good work FreePlay We also know that BD-J uses Java version 1.3. I have also been looking around at some java apps and emulators. Here are a few: JPC (x86 Based Emulator capable of running linux and dos games) http://www-jpc.physics.ox.ac.uk/index.html PSP (In progress) http://www.jpcsp.org/ List of standalone games http://www.codebeach.com/index.asp?t...ryID=11&Page=1 All look decent enough to port. Not sure how you would go about it though. May need a lot of rebuilding. SamS

07-21-2008, 05:12 AM	#13
JordanBlack68 Enter Custom Title Join Date: May 2006 Location: Scotland Posts: 1,578 Trader Feedback: 0	Pretty Impressive FreePlay

07-21-2008, 05:21 AM	#14
eldiablov Banned for LIFE Join Date: Oct 2006 Location: East London, England Posts: 2 Trader Feedback: 0	Thanks for this Freeplay, it sure will help me. I was having a lot of trouble setting up ... Thanks for the list SamS

07-21-2008, 08:05 AM	#16
bmfgeorgin2 Enter Custom Title Join Date: Nov 2006 Location: In a LittleBigPlanet Posts: 1,703 Trader Feedback: 1	wait what does this mean? you made a hello world so homebrew? __________________ http://img112.imageshack.us/img112/4...eorgin2ah2.jpg

07-21-2008, 08:17 AM	#18
bmfgeorgin2 Enter Custom Title Join Date: Nov 2006 Location: In a LittleBigPlanet Posts: 1,703 Trader Feedback: 1	so from my reading of the first post and not understanding 90% of it, we have minimal homebrew now on PS3? __________________ http://img112.imageshack.us/img112/4...eorgin2ah2.jpg

07-21-2008, 11:23 AM	#20
Brainbeat Join Date: Jan 2006 Posts: 56 Trader Feedback: 0	Thank you freeplay

07-21-2008, 12:14 PM	#21
MiKeY188 Join Date: Apr 2008 Location: Ireland Posts: 979 Trader Feedback: 0	Thanks man must get the java book back out lol

07-21-2008, 12:36 PM	#22
SamS Join Date: Apr 2008 Posts: 4 Trader Feedback: 0	Yes we have minimum homebrew, ie. we can only run apps and games that are written and compiled in java 1.3. There are many out there but most need rebuilding alot.

07-21-2008, 02:47 PM	#23
Brainbeat Join Date: Jan 2006 Posts: 56 Trader Feedback: 0	wht about 1.1 1.2 can they be recoded. Nope 1.3 only Last edited by Brainbeat; 07-21-2008 at 03:43 PM.. Reason: answered

07-21-2008, 02:51 PM	#24
Nero Join Date: Aug 2006 Location: Cardboard Box....! Posts: 2,649 Trader Feedback: 0	Thanks for this, it will come in handy __________________ [Center][URL=http://imageshack.us][IMG]http://img100.imageshack.us/img100/7638/nerosigmi6.png[/IMG][/URL][/CENTER] [Center][url=http://playfire.com/a/create_widget][img]http://media.playfire.com/profile/trophy_widget/Dante_7.png[/img][/url][/CENTER]

07-22-2008, 03:25 AM	#28
Brainbeat Join Date: Jan 2006 Posts: 56 Trader Feedback: 0	anyone have some good references for java learning?

07-22-2008, 06:09 AM	#29
Brainbeat Join Date: Jan 2006 Posts: 56 Trader Feedback: 0	Heres an alternative rss reader mod. it reads rss headlines only, and im hoping i can improve the code, so that it reads all info.linked to qj.net http://www.sendspace.com/file/6f8e1f Last edited by Brainbeat; 07-22-2008 at 06:10 AM.. Reason: missed words

QJ.net Game Discussion - PSP, Xbox, Wii, PS3, PSP Homebrew, and PSP Guides

[Release] Minimal BD-J (Java) Devkit for PS3