PNG File is corruped or not enough memory - perl

Question

Writing my first application using wxWidgets, everything compiled & run fine until I tried to load a few images for my application's toolbar!
It always throws: PNG file corrupted by ASCII conversion
I've written a simple perl script to convert PNG into compileable source & a header, then modified it a lot while searching for solutions to this problem over the online globe whose source is as follows:
#!/usr/bin/perl
# Script to convert all PNGs in ./png folder
# to C/CPP headers for embedding in apkstudio
# binary.
#
# Written by: Vaibhav Pandey <contact#vaibhavpandey.com>
# Declaring used namespaces
use Cwd;
use File::Basename;
# Converts the binary file to C/CPP header
sub Convert {
my $png = $_[0];
Print("Converting: ${png}");
# Extract base filename from absolute path
$name = File::Basename::basename($png, '.png');
# Clear variables & read png file
local $/ = undef;
open FILE, "${png}" or die "Cannot read: ${png}\n";
$input = <FILE>;
close FILE;
# Explode input to unsigned char*
#characters = unpack "C*", $input;
# Write input to output
$namespace = uc $name;
print HEADER " static const unsigned char* ${name}_png;\n";
print CPP "static const unsigned char _${name}_png[] = {\n ";
foreach $character (#characters) {
printf CPP '0x%02x', $character;
last if $i == $#characters;
print CPP ((++$i % 13) ? ', ' : ",\n ");
}
print CPP "\n};\n";
print CPP "const unsigned char* Embedded::${name}_png = _${name}_png;\n\n";
}
# Closes the namespace & class enclosure of the source file
sub FooterCpp {
print CPP "} // namespace Embedded\n";
print CPP "} // namespace APKStudio\n";
print CPP "} // namespace VPZ\n\n";
}
# Closes the namespace & class enclosure of the header file
sub FooterHeader {
print HEADER "\n};\n\n";
print HEADER "} // namespace Embedded\n";
print HEADER "} // namespace APKStudio\n";
print HEADER "} // namespace VPZ\n\n";
print HEADER "#endif // VPZ_APKSTUDIO_RESOURCE_EMBEDDED\n";
}
# Write the namespace & class enclosure to the source file
sub HeaderCpp {
print CPP "// Generated by resources.pl. Do not modify.\n";
print CPP "#include \"embedded.h\"\n\n";
print CPP "namespace VPZ {\n";
print CPP "namespace APKStudio {\n";
print CPP "namespace Resource {\n\n";
}
# Write the namespace & class enclosure to the header file
sub HeaderHeader {
print HEADER "// Generated by resources.pl. Do not modify.\n";
print HEADER "#ifndef VPZ_APKSTUDIO_RESOURCE_EMBEDDED\n";
print HEADER "#define VPZ_APKSTUDIO_RESOURCE_EMBEDDED\n\n";
print HEADER "#include <wx/bitmap.h>\n\n";
print HEADER "namespace VPZ {\n";
print HEADER "namespace APKStudio {\n";
print HEADER "namespace Resource {\n\n";
print HEADER "class Embedded {\n\n";
print HEADER "public:\n";
}
# Prints output to console with an EOL auto-appended
sub Print {
my $text = $_[0];
print "${text}\n";
}
# Scans for PNG files recursively in a folder
sub Scan {
my $folder = $_[0];
# Check if is not a folder
if (! -d $folder) {
Print("Not a folder: ${folder}");
return;
}
Print("Scanning: ${folder}");
# Try to open folder for scanning
opendir DIR, $folder or die $!;
# Loop through all the files inside
while ($entry = readdir DIR) {
# Skip . & .. files
next if substr($entry, 0, 1) eq ".";
my $path = "${folder}/${entry}";
Print("Found: ${path}");
if (-d $path) {
# Scan recursively if found a folder
::Scan($path);
} elsif (-f $path) {
# Continue if not a PNG file
next unless $entry =~ m/\.png$/;
# Finally convert if is valid
::Convert($path);
}
}
# Close the opened directory handle
closedir(DIR);
}
# Get current working directory
$wd = Cwd::getcwd();
# Compute absolute path for C/CPP header
my $header = "${wd}/embedded.h";
my $cpp = "${wd}/embedded.cpp";
# Open output stream for writing
open HEADER, ">${header}" or die "Cannot write: ${header}\n";
open CPP, ">${cpp}" or die "Cannot write: ${cpp}\n";
HeaderHeader(HEADER);
HeaderCpp(CPP);
# Fires up the whole thing
::Scan("${wd}/png");
# Close the already open header file
FooterHeader(HEADER);
FooterCpp(CPP);
close CPP;
close HEADER;
To me, it seems it has read the PNG as text, not in binary mode (I ain't sure yet as I never dealt with either Perl or wxWidgets, and it is my second C++ application ever)!
I also tried the offical (it seems as is featured on the website) perl script here, but it is same. Also, I verified the array elements of output by both scripts, mine & the seems-to-be-official one and is same as follows:
static const unsigned char _android_png[] = {
0x89, 0x50, 0x4e, 0x47, 0x0a, 0x1a, 0x0a, 0x00, 0x00, 0x00, 0x0d, 0x49, 0x48,
0x44, 0x52, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x10, 0x08, 0x06, 0x00,
0x00, 0x00, 0x1f, 0xf3, 0xff, 0x61, 0x00, 0x00, 0x00, 0x19, 0x74, 0x45, 0x58,
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0x38, 0x82, 0x85, 0x90, 0x12, 0xc0, 0xe3, 0xd9, 0x03, 0x38, 0x2b, 0x38, 0xa2,
0x87, 0x2e, 0x64, 0x79, 0xa9, 0x03, 0xfd, 0xd8, 0xca, 0x81, 0x7d, 0xee, 0x1d,
0x7f, 0x37, 0xe2, 0x81, 0x9a, 0xc1, 0x65, 0xf7, 0xf5, 0xce, 0xb9, 0x31, 0xbf,
0x0f, 0x07, 0x3a, 0x42, 0x44, 0xed, 0xdd, 0x4b, 0x9d, 0x3b, 0xbe, 0x15, 0x1f,
0x64, 0x03, 0xe9, 0xc1, 0x86, 0x51, 0x5e, 0x46, 0x78, 0xa5, 0x44, 0xf0, 0x34,
0xaf, 0x4f, 0x06, 0x74, 0x99, 0x07, 0x20, 0xf3, 0x01, 0xd8, 0xb5, 0x51, 0x87,
0xc3, 0x81, 0xb9, 0x34, 0x38, 0xed, 0xfc, 0x6d, 0x5a, 0xdb, 0x51, 0x66, 0xa7,
0x77, 0x14, 0x9e, 0xc3, 0x46, 0xfe, 0x16, 0x0e, 0xe8, 0x65, 0xdf, 0x51, 0x71,
0x9e, 0xfe, 0xe3, 0x0e, 0x40, 0xd2, 0x7e, 0x38, 0x92, 0x0b, 0xa2, 0x3e, 0x40,
0x05, 0x63, 0xfa, 0x76, 0xa2, 0x02, 0x43, 0x70, 0xc2, 0xa3, 0x15, 0xe3, 0x54,
0xde, 0x8e, 0x61, 0xee, 0x2c, 0x2c, 0x3d, 0xd1, 0x91, 0xa9, 0x7f, 0x46, 0xd0,
0x09, 0x80, 0x3a, 0x32, 0x03, 0xd6, 0x30, 0xfe, 0xf9, 0xc5, 0x5b, 0x1b, 0x22,
0x18, 0xa7, 0xb8, 0x5e, 0xbf, 0x57, 0xbd, 0x41, 0x1b, 0x36, 0x85, 0x62, 0x5c,
0x50, 0x07, 0xb9, 0x63, 0x82, 0xdf, 0x02, 0x0c, 0x00, 0xbc, 0x10, 0x2e, 0x3f,
0x7d, 0xcf, 0x4d, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x49, 0x45, 0x4e, 0x44, 0xae,
0x42, 0x60, 0x82
};
The code where it throws error is just the simple block of a couple lines as mentioned on the website:
wxMemoryInputStream inStream(Resource::Embedded::android_png, sizeof(Resource::Embedded::android_png));
wxBitmap image(wxImage(inStream, wxBITMAP_TYPE_PNG));
Also, if it can help...I am running ActiveState's distribution of Perl specifically the 5.18.2.1802 version on a 64-bit AMD machine with Windows 8.1. I have strong doubt on ActiveState Perl's file handling implementations though strictly need expert advisory if anyone has got time to help me. I'll be really grateful.

Answer 1

Use the three-argument open in your Perl script. Then you can add the :raw layer:
open FILE, '<:raw', $png or die "Cannot read: ${png}: $!\n";

Answer 2

Problem solved! The issue was with the CPP code, particularly in member variable initialisations. Sorry for bothering!