Cannot open file 64x64.png

[Old Coach]

trying to use shockbolts tiles. In both Angband and FAA, I am unable to use his tiles, and I get the message "Cannot open file 64x64.png"
Using windows xp.
Fix for this?
thanks!

[ekolis]

Are Shockbolt's tiles actually included with the game? You might have to download them separately...

[fizzix]

Some people have reported issues getting shockbolt's tiles to work. But the other times, when they tried again to get the actual error, it worked for whatever reason. So there's something strange going on, but we haven't been able to figure out what it is.

As silly as the suggestion is, could you try again, after making sure that file is actually there?

[PowerWyrm]

If it's Windows, I have had problems with both 32x32 and 64x64 tilesets before due to the ReadDib function detecting a problem on some lines (missing pixel?) while reading the png files. To fix that, I had to recompile after fixing the function (instead of borking with a message error, I forced the function to use data from the previous line if a line couldn't be read).

[Old Coach]

How do you make that fix with the readdib function?

[buzzkill]

Have you tried opening the png in a graphic editor and "save as" it under the same name.

[PowerWyrm]

How do you make that fix with the readdib function?

In ReadDIB2_PNG(), replace the code that copies the data to the DIB by this one and recompile:

/* Copy the data to the DIB */
    hBitmap = CreateDIBitmap(hDC, &(bi.bmiHeader), 0, NULL, &biSrc, DIB_RGB_COLORS);
        
    if (hBitmap)
    {
        /* Hack for large PNG files */
        byte errline = 2;

        for (y = 0; y < height; ++y)
        {
            if (SetDIBits(hDC, hBitmap, height - y - 1, 1, row_pointers[y], &biSrc,
                DIB_RGB_COLORS) != 1)
            {
                /* Hack -- Replace unreadable line by data from previous line */
                if (!errline)
                {
                    errline = 1;
                    /*plog_fmt("Error scanning line #%d, using previous line data instead.", y);*/
                    if (SetDIBits(hDC, hBitmap, height - y - 1, 1, row_pointers[y - 1], &biSrc,
                        DIB_RGB_COLORS) != 1)
                    {
                        errline = 2;
                    }
                }

                /* Hack -- Don't allow multiple unreadable lines */
                else errline = 2;
            }
            else errline = 0;

            if (errline == 2)
            {
                DeleteObject(hBitmap);
                hBitmap = NULL;
                noerror = FALSE;
                break;
            }
        }
    }

[Old Coach]

Thanks for the assistance.
It turns out that it is a problem with the computer. If I reboot, the graphics work fine. However, once I open a web browser, open certain programs, or run our internal messaging system, the game no longer an open 64x64.png. Even if I then close whatever program was running, the game can't open the graphics file. Reboot and then things are back to working fine.