Getting eboot images and names

[coolkehon]

how do i get the eboot image data from the eboot like icon0 and others if i can get the data and write it to an file to read it that would be good could someone make an function sample to get the image and names

[Torch]

EBOOT has a simple structure with a header that points to the contained files. Look at an EBOOT and figure it out, or google it.

[Insert_witty_name]

Look at the unpack-pbp source that comes with the SDK.

[Onii]

File format for PBP files: http://hitmen.c02.at/files/yapspd/psp_d ... ml#sec26.3

[coolkehon]

I been trying to get it but i dont know to much about binary file io so i was playing with it but couldnt figure it out here is the function i have so far can someone update it / change it to get it to work

Code: Select all

void Test::loadData()
{
	char * memblock;
	ifstream::pos_type loc,size;
	u32 offset,endset;
	ifstream file ("EBOOT.PBP", ios::in|ios::binary|ios::ate);
	if (file.is_open())
	{
		size = sizeof(u32) * 4;
		memblock = new char[size];
		
		loc = sizeof(u32) * 12;
		file.seekg(loc,ios::beg);
		file.read(memblock,size);
		offset = (u32)memblock;
		oslDebug("memblock size = %d",sizeof(memblock));
		
		loc = sizeof(u32) * 16;
		file.seekg(loc,ios::beg);
		file.read(memblock,size);
		endset = (u32)memblock;
		
		oslDebug("memblock size = %d",sizeof(memblock));
		oslDebug("offset = %i\nendset = %i",offset,endset);
		loc = offset;
		size = endset-offset;
		delete[] memblock;
		memblock = new char[size];
		file.seekg(loc,ios::beg);
		file.read(memblock,size);
		
		ofstream out("icon0.png",ios::out|ios::binary);
		if(out.is_open())
		{
			out.write(memblock,size);
			output.setText("tried :load image & save it");
			out.close();
		}
		else
			output.setText("error writing");
		
		
		delete[] memblock;
		memblock = NULL;
		file.close();
	}
}

[/code]

[Onii]

Do you want the function to just write out the PNG file or do you want it as a texture in memory that you can blit (or both)? If I have time tonight (depending on how quickly this audio development goes) I'll hack something together. Writing out a PNG will be trivial, converting to a texture will be a little more work using libpng, and you'll probably have to tweak it for the bit depth you want etc...

[Onii]

Here's a quick hack to extract the icon0.png data out of a PBP. Based loosely off my pspGetTitleFromEBOOT() code. http://forums.ps2dev.org/viewtopic.php?p=75257#75257

Code: Select all

u32 pspGetIcon0FromEBOOT(const char * EBOOTfileName, const char * icon0fileName){
    const u32 BPBSignature = 0x50425000;
    u32 foundPBPSig = 0;
    u32 icon0Offset = 0;
    u32 icon0EndOffset = 0;
    u32 icon0DataLength = 0;

    void * icon0Data = NULL;

    SceUID fp = sceIoOpen(EBOOTfileName, PSP_O_RDONLY, 0777);

    if(!fp){
        return -1;
    }

    // Read the eboot signature
    //
    if(sceIoRead(fp, &foundPBPSig, 4) != 4){
        sceIoClose(fp);
        return -1;
    }

    // Check the PBP Signature
    //
    if(foundPBPSig != BPBSignature){
        sceIoClose(fp);
        return -1;
    }

    // Skip offsets that we dont need from the header
    //
    if(sceIoLseek32(fp, 8, SEEK_CUR) == 0){
        sceIoClose(fp);
        return -1;
    }

    // Read the offset to the start of the icon0 data in the eboot
    //
    if(sceIoRead(fp, &icon0Offset, 4) != 4){
        sceIoClose(fp);
        return -1;
    }

    // Read the offset to the end of the icon0 data in the eboot
    //
    if(sceIoRead(fp, &icon0EndOffset, 4) != 4){
        sceIoClose(fp);
        return -1;
    }

    // Calculate the length of the icon0 data
    //
    icon0DataLength = icon0EndOffset - icon0Offset;

    // There is no data or the offsets are broken
    //
    if&#40;icon0DataLength <= 0&#41;&#123;
        sceIoClose&#40;fp&#41;;
        return -1;
    &#125;

    // Create a buffer just big enough for the icon0 data
    //
    icon0Data = malloc&#40;icon0DataLength&#41;;

    // If we ran out of memory
    //
    if&#40;!icon0Data&#41;&#123;
        sceIoClose&#40;fp&#41;;
        return -1;
    &#125;

    // Skip to the icon0 data
    //
    if&#40;sceIoLseek32&#40;fp, icon0Offset, SEEK_SET&#41; == 0&#41;&#123;
        sceIoClose&#40;fp&#41;;
        return -1;
    &#125;

    // Read the offset to the end of the icon0 data in the eboot
    // return error if we couldn't read it all
    //
    if&#40;sceIoRead&#40;fp, icon0Data, icon0DataLength&#41; != icon0DataLength&#41;&#123;
        sceIoClose&#40;fp&#41;;
        return -1;
    &#125;

    // Close the EBOOT now that we're done with it
    //
    sceIoClose&#40;fp&#41;;

    fp = NULL;

    // Delete the exiting destination file &#40;if one exists&#41;
    //
    sceIoRemove&#40;icon0fileName&#41;;

    // Open destination file to write out our data
    //
    fp = sceIoOpen&#40;icon0fileName, PSP_O_WRONLY|PSP_O_CREAT, 0777&#41;;

    if&#40;!fp&#41;&#123;
        return -1;
    &#125;

    // Write out our data. If it failed, clean up
    //
    if&#40;sceIoWrite&#40;fp, icon0Data, icon0DataLength&#41; != icon0DataLength&#41;&#123;
        sceIoClose&#40;fp&#41;;
        sceIoRemove&#40;icon0fileName&#41;;
        return -1;
    &#125;

    // We're all done here
    //
    sceIoClose&#40;fp&#41;;

    // Return success
    //
    return 1;
&#125;

[coolkehon]

thanks man this forum is great and filled with programmers mabye now i can move on and look at your code and learn by example about some of this stuff kinda new to c++ and c

only wish my gmail wasnt blocked so it would email me about topic replies