PSP crashes when my python program

linksterman · #1 July 9th, 2007, 09:54 PM

I am coding for the PSP and I have an RSS reader that will show images and stuff. the proplem is that the reader will crash after displaying i think 10 pages with images on them. here is the part of my code that blits the image to a layer, which will later be blitted to the screen.

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 for idx, wc in enumerate(c):

            if wc == "&": #finds out if it the beginning of a '<'

                activi=0

            if wc == "l" and activi==0:

                activi=2

            if wc=="*" and activi==2: #previously marked each image with a '*'

                url=c.replace('"', '').replace('*','')

                jpg=url.find('jpg')

                png=url.find('png')

                gif=url.find('gif')

                exten='mesa'

                if jpg>=0: #only support jpg and png

                    exten='jpg'

                    name=url[jpg-15:jpg-2]

                if png>=0:

                    exten='png'

                    name=url[png-10:png-2]

                if gif>=0:

                    exten='gif'

                    name='mesa'

                if exten != 'gif' and exten != 'mesa': #blit the image to the screen

                    name=name.replace("/", '')

                    temp=psp2d.Image('temp/%s' % name + '.' + exten)

                    locx=(480-(temp.width))/2

                    dy2+=16

                    bg.blit(temp, 0, 0, temp.width, temp.height, locx, dy2+dy)

                    dy2 += temp.height

                    temp=None #clear out the variables (thought this could help)

                    name=None

                    url=None

                    exten=None

                    png=None

                    jpg=None

                    gif=None

if I do this:

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 for idx, wc in enumerate(c):

            if wc == "&": #finds out if it the beginning of a '< in the xml page'

                activi=0

            if wc == "l" and activi==0:

                activi=2

            if wc=="*" and activi==2: #previously marked each image with a '*'

                url=c.replace('"', '').replace('*','')

                jpg=url.find('jpg')

                png=url.find('png')

                gif=url.find('gif')

                exten='mesa'

                if jpg>=0: #only support jpg and png

                    exten='jpg'

                    name=url[jpg-15:jpg-2]

                if png>=0:

                    exten='png'

                    name=url[png-10:png-2]

                if gif>=0:

                    exten='gif'

                    name='mesa'

                #if exten != 'gif' and exten != 'mesa': #blit the image to the screen

                  #  name=name.replace("/", '')

                    #temp=psp2d.Image('temp/%s' % name + '.' + exten) 

                    #locx=(480-(temp.width))/2

                    #dy2+=16

                    #bg.blit(temp, 0, 0, temp.width, temp.height, locx, dy2+dy)

                    #dy2 += temp.height

                    #temp=None #clear out the variables (thought this could help)

                    #name=None

                    #url=None

                    #exten=None

                    #png=None

                    #jpg=None

                    #gif=None

then i can view every page without crashes (and without images). but i need images.

It doesnt matter what order i go in. i can do (numbers represent articles)
1,2,3,4,5,6,7,8,9,CRASH
1,2,1,2,1,2,1,2,1,CRASH
1,2,3,4,3,4,3,2,3,CRASH

say page 0 has no images, then i can do this 0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,CRASH
so it lasts only if 10 pages with images have been displayed. I did a memory test, and there says constant (well fluxates around 15mb's) so there is no leak..

so i am really stumped on why this wont work, can someone help me out?

bartonc · #2 July 9th, 2007, 11:57 PM

I'm guessing (because you have not shown your import statements) that one or some of the modules in are written in C. It sounds like a memory allocation issue (not usually a problem in python itself).

linksterman · #3 July 10th, 2007, 12:56 AM

Quote:

Originally Posted by bartonc

I'm guessing (because you have not shown your import statements) that one or some of the modules in are written in C. It sounds like a memory allocation issue (not usually a problem in python itself).

i think your right, because if i replace the

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temp = psp2d.Image('temp/%s' % name + '.' + exten)

with

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temp = psp2d.Image('holder.png')

it works fine. so replacing it with a constant image doesnt cause it to crash... and i tried it on my pc and works flawlessly. and when i looked at the core tracebacks, i kept getting errors about unable to make a proper traceback because too many files were open. Ill tell the dev. and hopefully it can be fixed soon.

linksterman · #4 July 12th, 2007, 05:00 AM

ok, this just isnt making any sense to me now.

i am using a keyboard input library for the psp called danzeff (some of you familiar with the psp probably know about it) well, when i load the keyboard (it displays it on screen allowing for input), it should lessen the ammount of pages i can see shouldnt it? since it takes roughly 8 image files to be loaded into the gfx memory (psp2d.Image()) and then it clears them out the same way i did when you close the keyboard(=None). if i comment out the keyboard i can view 10 pages, but if i dont comment out the keybaord part, and call it up, i still can still view 10 pages. shouldnt i only be able to view 2 since 8 extra image files were loaded into memory and cleared out of memory the exact same way that I clear out my temporary images? the reason i ask, is if i add this:

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lalala=psp2d.Image('static.png')

before this:

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temp=psp2d.Image('temp/%s' % name + '.' + exten)

to make this:

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 lalala=psp2d.Image('static.png')

temp=psp2d.Image('temp/%s' % name + '.' + exten)

I can only view 9 pages, since 1 more image was loaded...
if someone wants to help me, i can send you the complete program (i dont want to post it here because of size), but this is driving me nuts.

PSP crashes when my python program

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