GP2X Issues...

[paul_nicholls]

GP2X can use sdl_image, and thus load png files...I haven't tried it under freepascal yet, this is my next trick :-)

I will get a screenshot posted soon :-)

Looking forward to the screen shots.

Does libpng exist on GP2X machines?

I was getting errors when trying to use SDL_Image when compiling for the GP2X

[code]]

Also, with the later source code I used to re-create the cross-compiler, I don't seem to now be able to use the SDL_getenv function anymore...returns blank for some reason (not that I need it currently anyway)

On a side note, I have started up a web page (no downloads or screenies yet) here http://fpc4gp2x.eonclash.com/ as my own start for a fpc4gp2x initiative

And I have done a small update to the http://wiki.freepascal.org/GP2X page.

cheers,
Paul.

[savage]

the pow error sounds like a lib or .h file has not been linked in.

Sorry to hear about the loss of GetEnv, but sometimes you take a step back so you can get a better run up to jump over the obstacles .

I was thinking on Friday that it would be cool to get SoAoS working on GP2X and since we've also added GBA support to JEDI-SDL, that would be nice as well.

Btw, do you own or have you played any GP2X commercial ( http://gp2x.co.uk/commercial.html ) games like Wind & Water: Puzzle Battles ( http://www.yuan-works.com/WindAndWater/ ), or Payback
<object><param name="movie" value="http://www.youtube.com/v/J0M4IcAczQc"></param><embed src="http://www.youtube.com/v/J0M4IcAczQc" type="application/x-shockwave-flash" width="316" height="260"></embed></object>
or
VEKTAR
They all look fairly polished.

Anyway, keep us posted about your progress.

[Legolas]

pow should come from math lib, so I think you can resolve this issue by linking it by -lm

[savage]

I've just ordered PayBack on the GBA. As my son has 2 of these I can at least grab one and use that.

Paul, I've added some fpc4gp2x info at http://wiki.gp2x.org/wiki/Alternative_SDKs

If you would like me to change anything there, please let me know.

[paul_nicholls]

[quote="Legolas"]pow should come from math lib, so I think you can resolve this issue by ]

hmm..I am pretty sure I am already linking in -lm (see below)

arm-linux-ld.exe -static --no-warn-mismatch -s -L. -o%1.gpe link.res -lm -lstdc++ -lgcc_eh -lpthread -lvorbisidec -lmikmod -lpng -lpng12 -lz -lSDL -ljpeg -lfreetype -lc -lgcc

Paul.

[paul_nicholls]

the pow error sounds like a lib or .h file has not been ]http://gp2x.co.uk/commercial.html[/url] ) games like Wind & Water: Puzzle Battles ( http://www.yuan-works.com/WindAndWater/ ), or Payback
<object><param name="movie" value="http://www.youtube.com/v/J0M4IcAczQc"></param><embed src="http://www.youtube.com/v/J0M4IcAczQc" type="application/x-shockwave-flash" width="316" height="260"></embed></object>
or
VEKTAR
They all look fairly polished.

Anyway, keep us posted about your progress.

I have played Vektar as it comes with the GP2X installed into the NAND memory. It is pretty cool :-)

What is SoAoS again?
Paul.

[WILL]

What is SoAoS again?

Siege of Avalon Open Source.

[Legolas]

[quote="paul_nicholls"]

pow should come from math lib, so I think you can resolve this issue by ]

hmm..I am pretty sure I am already linking in -lm (see below)

arm-linux-ld.exe -static --no-warn-mismatch -s -L. -o%1.gpe link.res -lm -lstdc++ -lgcc_eh -lpthread -lvorbisidec -lmikmod -lpng -lpng12 -lz -lSDL -ljpeg -lfreetype -lc -lgcc

Paul.

Sometimes I had similar issues due to lib linking order. Try moving -lm at the end of the line, but before -lc -lgcc:

arm-linux-ld.exe -static --no-warn-mismatch -s -L. -o%1.gpe link.res -lstdc++ -lgcc_eh -lpthread -lvorbisidec -lmikmod -lpng -lpng12 -lz -lSDL -ljpeg -lfreetype -lm -lc -lgcc

[paul_nicholls]

[quote="Legolas"]

pow should come from math lib, so I think you can resolve this issue by ]

hmm..I am pretty sure I am already linking in -lm (see below)

arm-linux-ld.exe -static --no-warn-mismatch -s -L. -o%1.gpe link.res -lm -lstdc++ -lgcc_eh -lpthread -lvorbisidec -lmikmod -lpng -lpng12 -lz -lSDL -ljpeg -lfreetype -lc -lgcc

Paul.

Sometimes I had similar issues due to lib linking order. Try moving -lm at the end of the line, but before -lc -lgcc:

arm-linux-ld.exe -static --no-warn-mismatch -s -L. -o%1.gpe link.res -lstdc++ -lgcc_eh -lpthread -lvorbisidec -lmikmod -lpng -lpng12 -lz -lSDL -ljpeg -lfreetype -lm -lc -lgcc

Thanks Legolas, it now compiles!
I can now compile and use SDL_Image under freepascal/delphi, and compile under GP2X (needs testing in the handheld itself yet)

cheers,
Paul.

[savage]

Wow it really is like magic programming, or am I missing something here? You need to move the -lm flag to a specific place?
Does that also fix the GetEnv issue?