C/C++ Programming Help Thread

[the unique warrior]

check the source of dark alex downgraders tests
there formats he flash0
-= Double Post =-

Spoiler for g:

if( current_pad.Buttons & PSP_CTRL_CROSS)
{
char temp[200];
strcpy( temp, current_dir);
if( strcmp( ".", gameEntry[current_selection].name) != 0 && strcmp( "..", gameEntry[current_selection].name) != 0)
{
strcat( temp, gameEntry[current_selection].name);
if( is_file(temp))
{
selection = (char*)malloc( sizeof(temp));
strcpy( selection, temp);
browsing = 0;
}
else
{
current_selection = 0;
strcpy( current_dir, temp);
strcat( current_dir, "/");
pspDebugScreenClear();
recacheGameDir();
current_selection = 0;
}
}
else if( strcmp( ".", gameEntry[current_selection].name) == 0)
{
sprintf( current_dir, "%s", "ms0:/");
pspDebugScreenClear();
recacheGameDir();
current_selection = 0;
}
else if( strcmp( "..", gameEntry[current_selection].name) == 0)
{
int i = 0;
int max = strlen( current_dir);
int dir_no = 0;
while( (i < max))
{
if( current_dir[i] == '/')
{
dir_no++;
}
i++;
}
if( dir_no > 1)
{
char * temp2 = strtok( current_dir, "/");
strcpy( temp, temp2);
strcat( temp, "/");
i = 2;
while( (i < dir_no))
{
temp2 = strtok( NULL, "/");
strcat( temp, temp2);
strcat( temp, "/");
i++;
}
strcpy( current_dir, temp);
}
pspDebugScreenClear();
recacheGameDir();
current_selection = 0;
}
}
}
sceDisplayWaitVblankStart ();
}
pspDebugScreenClear();

return selection;
}

this is a part of a file browser
if i press cross i select the file (variabel = temp)
how do i know of the file is an mp3 or an png or an.....????

:::::

#include <stdio.h>
#include <string.h>

int main ()
{
 char str[] = "ms0:/google/music.mp3"
       if ( (strstr (str,"mp3")) != NULL )
                    printf("How Many Times Do I Have To Tell You Don't \n Choos MP3's idiot!\n");
        else
           printf("Your All Good!\n");
}

[Moca]

check the source of dark alex downgraders tests
there formats he flash0

Too bad im trying to format flash1 :P

[SG57]

Devun - It's not possible at compiling time. Just use a seprate integer (or array) per variable...

[hallo007]

how do you check the width and the height of an image??? (an unknow image selected by an user of the app ofcourse;))

[Devun_06]

Devun - It's not possible at compiling time. Just use a seprate integer (or array) per variable...

Thanks...

how do you check the width and the height of an image??? (an unknow image selected by an user of the app ofcourse;))

To find the width and height of an image.

After the image has been loaded use Image* ->imageWidth; and
Image* ->imageHeight;

replacing the Image* with the actual images name within the source!

[hallo007]

wat is the reason that when i do sceKernelExitGame my psp crashes (with the sound of the umd drive) and three days ago the function did work and i didnt change that function:-s

[the unique warrior]

wat is the reason that when i do sceKernelExitGame my psp crashes (with the sound of the umd drive) and three days ago the function did work and i didnt change that function:-s

IF your using SE SDK , use sceKernelExitVSHVSH();.

And Thank Any One Who helped you please :) . (not me :P ).

[hallo007]

i am not using the SE SDK tnx devenu;)

[SG57]

Well, I dunno what may be causing a crash upon exiting, a corrupt stack maybe? I dunno...

[hallo007]

how do you load bmp images

while searching i found some header files , but i dindt understand it

[SG57]

I think it will benefit you to write your own BMP loading library... I, for one, have written multiple versions of BMP loaders for when I was using PSPGL and loading textures such as PCX, BMP, RAW, etc. I learned alot from it. But if your not looking to learn, google for a BMP image loader in C and port it to work with the PSP. Simplest way i see fit.

[Waterbottle]

Is it possible to add something to my makefile that makes cygwin automaticly run the code,
"rm main.o"
everytime I compile?

It's tiresome to have to delete main.o manually everytime I have made a modification to a different file than main.c.

[yaustar]

GNU make should do that automatically for you as it will detect a code change in the dependency chain of files. If main source and any other files that main source #includes does not change, then that object file does not need to be recompiled.

Read up on how the compiler works: http://www.ibiblio.org/obp/thinkCS/c...ish/chap01.htm

[SG57]

Honestly, I like to 'clean' my envirorment right after compiling, whether debug or releease version... This makes sure the current version of my code is being compiled, and leaves virtually, no room for error, if the compiler were to randomly mistake an edited source file as for not edited...

[Insert_Witty_Name]

'make clean' will delete those files for you.

[SG57]

*wonders why he is ignored*

*and wonders why Insomniac can't see my impliation of 'make clean' from the quoted 'clean' in lsat post*

>:{

[Insert_Witty_Name]

Cryptic answers to questions aren't useful.

[psphacker12.]

OK I need to know how to install libogg!
I have done:

svn checkout svn://svn.ps2dev.org/psp/trunk/libogg

Now what should I do?

[SG57]

Insomniac - Bite me... ;)

psp - Sooner or later your going to need to think logically about problems for yourself... I can tell you right now, the folder you just downloaded, somewhere in it is a readme or more specifically 'README.PSP' that will tell you EXACTLY what library requirements it needs, as well as what to do to install the library... I know from experience libogg needs libvorbis and libtremor... Unless, Ive mixed up the 3 and libtremor needs libogg and libvorbis, or the other ways around...

[psphacker12.]

SG57, I have "cygwin1.dll" in "C:/cygwin/bin/cygwin1.dll" but still doesn't work

[yaustar]

Did you read README.PSP?

[Insert_Witty_Name]

SG57, I have "cygwin1.dll" in "C:/cygwin/bin/cygwin1.dll" but still doesn't work

Read the error message again. You have multiple versions of cygwin1.dll, remove those that are not in the path given.

[hallo007]

when i add -lpspkernel to my makefile , my app just crashes , when i dont add it my app works but kernelloads (like scekernelexitgame) dont work

any sugestions?

[Insert_Witty_Name]

If you're following the samples and have these lines in your makefile:

PSPSDK=$(shell psp-config --pspsdk-path)
include $(PSPSDK)/lib/build.mak

Then there is no need to add -lpspkernel as it will be already included.

It sounds as though your error is something else, post your code.

[Chan]

Hi all.

I have downloaded the source code that ahman released for VNC and decided to make a skin for it but the problem is I have no idea how to compile the code. I usually manage ok by searching forums and googling but after 4 days of getting it wrong I thought it was time to ask for a little help.
I'm not a total noob but this is something I have never done so I don't really know where to start.

I know I could probably find someone to compile it for me but I would rather expand my knowledge so that next time I can just get on and do it myself.

Many thanks to anyone willing to take the time to point me in the right direction.

[hallo007]

check the tutorials on psp-programming.com

[Chan]

check the tutorials on psp-programming.com

Thanks :)

[hallo007]

If you're following the samples and have these lines in your makefile:

PSPSDK=$(shell psp-config --pspsdk-path)
include $(PSPSDK)/lib/build.mak

Then there is no need to add -lpspkernel as it will be already included.

It sounds as though your error is something else, post your code.

it is 1107 lines :/

but here is the makefile

TARGET =noname
OBJS =  filebrowser/mp3player.o  main.o  filebrowser/file_browser.o graphics/graphics.o graphics/framebuffer.o 


CFLAGS = -O2 -Wall
CXXFLAGS = $(CFLAGS) -fno-exceptions -fno-rtti
ASFLAGS = $(CFLAGS)

LIBS =  -lmad -lpspusb -lpspusbstor -lpsppower -lpspgu -lpng -lz -lm -lpspumd -lpspaudiolib -lpspaudio
LDFLAGS = 
EXTRA_TARGETS = EBOOT.PBP
PSP_EBOOT_TITLE = nonameyetv0.2
PSPSDK=$(shell psp-config --pspsdk-path)
include $(PSPSDK)/lib/build.mak

[HYde]

Hello all,
I was wondering if anyone knew why when I compile lesson4 I get this in the compiler log

Compiler: Default compiler
Executing  make...
make.exe -f "makefile" all
unknown option -- aInvalid option '?'
unknown option -- tInvalid option '?'
unknown option -- hInvalid option '?'
unknown option -- aInvalid option '?'
unknown option -- tInvalid option '?'
unknown option -- hInvalid option '?'
unknown option -- aInvalid option '?'
unknown option -- tInvalid option '?'
unknown option -- hInvalid option '?'
unknown option -- aInvalid option '?'
unknown option -- tInvalid option '?'
unknown option -- hInvalid option '?'
psp-gcc -I. -I/usr/local/pspdev/psp/sdk/include -O2 -G0 -Wall   -c -o graphics.o graphics.c
psp-gcc -I. -I/usr/local/pspdev/psp/sdk/include -O2 -G0 -Wall   -c -o framebuffer.o framebuffer.c
psp-gcc -I. -I/usr/local/pspdev/psp/sdk/include -O2 -G0 -Wall  -L. -L/usr/local/pspdev/psp/sdk/lib   main.c graphics.o framebuffer.o -lpspgu -lpng -lz -lm -lpspdebug -lpspdisplay -lpspge -lpspctrl -lpspsdk -lc -lpspnet -lpspnet_inet -lpspnet_apctl -lpspnet_resolver -lpsputility -lpspuser -lpspkernel -o hello.elf
psp-fixup-imports hello.elf
mksfo 'Image Example' PARAM.SFO
psp-strip hello.elf -o hello_strip.elf
pack-pbp EBOOT.PBP PARAM.SFO NULL  \
	NULL NULL NULL  \
	NULL  hello_strip.elf NULL
rm -f hello_strip.elf
Execution terminated
Compilation successful

whats all the unknown option stuff mean? it's not really that big of a deal (or maybe it is idk) because it compiles and runs. I'm just curious is all.

[psphacker12.]

Can someone re-order my LIBS correctly pls?

LIBS = -lpspctrl -lpspgu -lfreetype -lmad -lpspaudiolib -lpspaudio -lpsppower -lpspumd -lpng -lpsprtc -lpspusb -lpspusbstor -lz -lm -lvorbisidec