My app keeps freezing on exit.

[GlennNZ]

I'm trying to port some of my SDL apps to PSP but I can't get them to exit without either freezing the PSP (or app), or turning the PSP off.

As a test app, I made an openGL+SDL app that makes a square change colour when you press the arrows. It runs fine, the problem is having a button that exits the app properly. I've concluded that exit(0) turns the whole PSP off.

So, to try and focus on the exiting part, I stripped away all the code so that it is just a game loop that is exited when the start button is pressed. It locks up though.

How do I get it to work properly?!

Here's the code

#include <SDL/SDL.h>
#include <stdlib.h>
#include <pspctrl.h>

#include <pspkernel.h>
PSP_MODULE_INFO("simpleApp", 0, 1, 1);

//using namespace std;


bool isRunning;

int buttonDown;
SceCtrlData pad;

int main(int argc, char** args)
{
	isRunning = true;
	
	while (isRunning)
	{
		sceCtrlReadBufferPositive(&pad, 1);
		if(pad.Buttons != 0 & buttonDown != 1)
		{			
			if(pad.Buttons & PSP_CTRL_START)
			{
				isRunning = false;
			}
		}	
	}
	
	SDL_Quit();
	return 0;
}

Just to be thorough, here's the makefile

TARGET = simpleApp
PSPSDK = $(shell psp-config --pspsdk-path)
PSPBIN = $(shell psp-config --psp-prefix)/bin
SDL_CONFIG = $(PSPBIN)/sdl-config
OBJS =	simpleApp.o


DEFAULT_CFLAGS = 

MORE_CFLAGS = -G0 -O2

CFLAGS = $(DEFAULT_CFLAGS) $(MORE_CFLAGS)
CXXFLAGS = $(DEFAULT_CFLAGS) $(MORE_CFLAGS) -fno-exceptions -fno-rtti

LIBS = $(shell $(SDL_CONFIG) --libs) -lSDL -lglut -lGLU -lGL -lm -lc -lpsputility -lpspdebug -lpspge -lpspdisplay -lpspctrl -lpspsdk -lpspvfpu -lpsplibc -lpspuser -lpspkernel -lpsprtc -lpsppower -lstdc++ -lSDLmain

EXTRA_TARGETS = EBOOT.PBP

include $(PSPSDK)/lib/build.mak

Cheers for any help. Turning the PSP on and off all the time is not ideal.

Glenn

[ZereoX]

Im not a C/C++ coder but I think you need to add this to your code to enable the Home button/Exit with it.

/* Exit callback */
int exit_callback(int arg1, int arg2, void *common) {
          sceKernelExitGame();
          return 0;
}

/* Callback thread */
int CallbackThread(SceSize args, void *argp) {
          int cbid;

          cbid = sceKernelCreateCallback("Exit Callback", exit_callback, NULL);
          sceKernelRegisterExitCallback(cbid);

          sceKernelSleepThreadCB();

          return 0;
}

/* Sets up the callback thread and returns its thread id */
int SetupCallbacks(void) {
          int thid = 0;

          thid = sceKernelCreateThread("update_thread", CallbackThread, 0x11, 0xFA0, 0, 0);
          if(thid >= 0) {
                    sceKernelStartThread(thid, 0, 0);
          }

          return thid;
}

[yaustar]

ZeroX, SDL for the PSP does that for you. To the OP, the 'HOME' button should bring up the standard PSP quit application screen when you use SDL. However, in your code, you don't initialise SDL.

[SG57]

ZeroX - That hooks the Home button to that home menu screen thing. That can be placed in via initlizing SDL with an argument of the number 1 if my memory serves right...

GlennNZ - I dont use SDL, rather took a peek at porting stuff written in it. But exitting out using a PSP-specific command should owrk, unless the port of SDL to the PSP just made SDL_Quit() contain it...

either way:

#include <pspkernel.h>

...

if(pad.Buttons & PSP_CTRL_START) sceKernelExitGame();

[FreePlay]

At the very least, in your main function, add

sceKernelExitGame();

before the return.

[GlennNZ]

Originally Posted by yaustar

ZeroX, SDL for the PSP does that for you. To the OP, the 'HOME' button should bring up the standard PSP quit application screen when you use SDL. However, in your code, you don't initialise SDL.

Could you perhaps elaborate on that, Yaustar? I'm getting the impression that there is a simpler way than the way I just got working.

I got the HOME button/exit to work with:

//This is an SDL app. How much can I remember of SDL commands? Not much unfortunately.

#include <SDL/SDL.h>
#include <stdlib.h>
#include <pspctrl.h>

#include <pspkernel.h>
PSP_MODULE_INFO("simpleApp", 0, 1, 1);

//using namespace std;


bool isRunning;

int buttonDown;
SceCtrlData pad;

/* Exit callback */
int exit_callback(int arg1, int arg2, void *common) {
	sceKernelExitGame();
	return 0;
}

/* Callback thread */
int CallbackThread(SceSize args, void *argp) {
	int cbid;
	
	cbid = sceKernelCreateCallback("Exit Callback", exit_callback, NULL);
	sceKernelRegisterExitCallback(cbid);
	
	sceKernelSleepThreadCB();
	
	return 0;
}

/* Sets up the callback thread and returns its thread id */
int SetupCallbacks(void) {
	int thid = 0;
	
	thid = sceKernelCreateThread("update_thread", CallbackThread, 0x11, 0xFA0, 0, 0);
	if(thid >= 0) {
		sceKernelStartThread(thid, 0, 0);
	}
	
	return thid;
}

int main(int argc, char** args)
{
	SetupCallbacks();
	
	isRunning = true;
	
	while (isRunning)
	{
		sceCtrlReadBufferPositive(&pad, 1);
	}
	
	SDL_Quit();
	sceKernelExitGame();
	return 0;
}

I needed the sceCtrlReadBufferPositive (&pad, 1) line or else the exit process locks up on the 'Please wait...' screen after you choose 'yes' to exiting.