Converts images to a C style buffer header file

img2buff.ps1

#######################################################################
#
#            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
#                    Version 2, December 2004
# 
# Copyright (C) 2004 Sam Hocevar
#  14 rue de Plaisance, 75014 Paris, France
# Everyone is permitted to copy and distribute verbatim or modified
# copies of this license document, and changing it is allowed as long
# as the name is changed.
# 
#            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
#   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
# 
#  0. You just DO WHAT THE FUCK YOU WANT TO.
#
########################################################################
#
#	Author
#	Nicolas Cabrera Lettiere -> https://github.com/nclettiere/
#
########################################################################
#
#	About
# Converts images inside a directory to a C style const static char * buffer
#
#######################################################################
#
#	Dependencies 
#	GraphicsMagick (gm.exe in the system PATH) with the convert module enabled.
#	http://www.graphicsmagick.org/
#
########################################################################
#
#	Notes
#	Is opt to you to rename files with the same name :)
#
########################################################################
#
#	Usage:
#	
#	.\to_buffer -dir .\dir_with_bunch_of_images (<- Loops trough the directory and just starts converting
#	.\to_buffer -dir .\dir -out images.hpp      (<- Add -out to modify the output file
#	.\to_buffer -dir .\dir -recurse             (<- Add -recurse to loop trough all files and directories
#
#
#	Outputs smth like:
#
#	#pragma once
#
#	/*
#		ButtonImage : [Button.tga]
#	*/
#	#define ButtonExtent  5163
#
#	static const unsigned char
#		Button[]=
#	{
#		0x47, 0x49, 0x46, 0x38, 0x39, 0x61, 0x00, 0x01, 0x40, 0x00, 0xF6, 0x50, 
#		...
#	}
#	...
#
#######################################################################
#
#	TODO
#	1. Work on a single file or specified files
#	2. Remove gm dependency
#	3. Add optional suffixes to the generated variables
#	4. Linux support
#
########################################################################

param (
    [string]$dir = $(throw "-dir is required."),
    [string]$out,
    [switch]$recurse = $false
)

if([string]::IsNullOrEmpty($out))
{
	$file = Get-Item -Path $dir
	$name = $file.Name
	$out = "$name.hpp"	
	Write-Host "Default output file: $out -> (use '-output' to override)`r`n" 
}

if($recurse)
{
	$images = Get-ChildItem -Path $dir –Recurse -File
}
else
{
	$images = Get-ChildItem -Path $dir -File
}

$converted_files = @{}

foreach($image in $images)
{
	$temp_file = New-TemporaryFile
	Remove-Item -Path $temp_file -Force
	$temp_file_h = "$temp_file.h"
	
	$pinfo = New-Object System.Diagnostics.ProcessStartInfo
	$pinfo.FileName = "gm.exe"
	$pinfo.RedirectStandardError = $true
	$pinfo.RedirectStandardOutput = $true
	$pinfo.UseShellExecute = $false
	$pinfo.Arguments = "convert $image $temp_file_h"
	$p = New-Object System.Diagnostics.Process
	$p.StartInfo = $pinfo
	$p.Start() | Out-Null
	$p.WaitForExit()
	$stdout = $p.StandardOutput.ReadToEnd()
	$stderr = $p.StandardError.ReadToEnd()
	
	if($p.ExitCode -ne 0) 
	{
		Write-Error $stderr
		$(throw "Failed to convert image to C buffer. Internal GM error.")
	}
	else 
	{
		$converted_files.Add($image, $temp_file_h) # key, value
	}
}

# Create the actual output file
New-Item $out
Add-Content -Path $out -Value "//////////////////////////////////////////////////////////`r`n//`tAuto Generated source file with tool: img2buff.ps1  //`r`n//////////////////////////////////////////////////////////`r`n"
Add-Content -Path $out -Value "#pragma once`r`n"

# Append the formatted buffer to the output one by one
$converted_files.GetEnumerator() | ForEach-Object{
	$filepath = $_.key
	$name = $filepath.Basename
	$contents = Get-Content -Path $_.value
	
	$title = 'Logo image declaration (GIF format).'
	$extent = 'LogoImageExtent'
	$variable = 'LogoImage'
	
	$format_title = "$($name) : [$($filepath.Name)]"
	$format_extent = "$($name)Extent"
	
	$contents.replace($title, $format_title).replace($extent, $format_extent).replace($variable, $name) | Add-Content -Path $out
}