private static void PNGCompress(string fileName)
{
PNGCompressor compressor = new PNGCompressor();
LosslessInputSettings inputSettings = new LosslessInputSettings();
inputSettings.OptimizationLevel = OptimizationLevel.Level1;
compressor.CompressImageLossLess(fileName, "temp." + fileName, inputSettings);
FileInfo file = new FileInfo(fileName);
file.Delete();
file = new FileInfo("temp." + fileName);
file.MoveTo(fileName);
completeCount++;
}
private static void PreCompress()
{
Bitmap bitmap = new Bitmap(60, 60);
Graphics graphics = Graphics.FromImage(bitmap);
graphics.Clear(Color.Aquamarine);
graphics.Save();
graphics.Dispose();
bitmap.Save("pre.bmp", ImageFormat.Bmp);
PNGCompressor compressor = new PNGCompressor();
LosslessInputSettings inputSettings = new LosslessInputSettings();
inputSettings.OptimizationLevel = OptimizationLevel.Level0;
compressor.CompressImageLossLess("pre.bmp", "pre.png", inputSettings);
RemoveTemp("pre.bmp");
RemoveTemp("pre.png");
completeCount = 0;
}
static void Main(string[] args)
{
if (args.Length >= 3)
{
string pngPath = args[0];
string assetsFolder = args[1];
string stickerPack = args[2];
// Are the argument file and folder valid?
if (!File.Exists(pngPath) || !Directory.Exists(assetsFolder))
{
Console.WriteLine("[ ! ] Invalid argument");
return;
}
// Acquire file name without extension and the folder where the converted sticker should be stored
string baseName = Path.GetFileName(pngPath);
baseName = baseName.Substring(0, baseName.LastIndexOf('.'));
string webpFolder = Path.Combine(assetsFolder, stickerPack);
Console.WriteLine("[ * ] Generating sticker from: {0}", pngPath);
// Is a PNG?
if (!pngPath.EndsWith(".png"))
{
Console.WriteLine("[ ! ] File is not a PNG");
return;
}
// Is a 512x512 image?
using (var image = System.Drawing.Image.FromFile(pngPath))
{
if (image.Width != 512 || image.Height != 512)
{
Console.WriteLine("[ ! ] Invalid sticker size, should be 512x512");
return;
}
}
string tmpPath = Path.Combine(webpFolder, baseName + ".tmp");
// Optimize PNG image
var compressor = new PNGCompressor();
compressor.CompressImageLossy(pngPath, tmpPath);
// Convert to WebP
var newName = baseName + ".webp";
using (var imageFactory = new ImageFactory(preserveExifData: false))
{
ISupportedImageFormat webp = new WebPFormat {
Quality = 75
};
imageFactory.Load(tmpPath);
imageFactory.Format(webp);
imageFactory.Save(Path.Combine(webpFolder, newName));
}
Console.WriteLine("[ * ] Saved WebP to: {0}", webpFolder);
// Delete compressed temporary file
if (File.Exists(tmpPath))
{
File.Delete(tmpPath);
}
// Add to JSON
JObject stickerJson = JObject.Parse(File.ReadAllText(Path.Combine(assetsFolder, "contents.json")));
foreach (var pack in stickerJson["sticker_packs"])
{
if (pack["identifier"].ToString() == stickerPack)
{
JObject sticker = new JObject();
sticker["image_file"] = newName;
sticker["emojis"] = new JArray();
JArray stickers = (JArray)pack["stickers"];
stickers.Add(sticker);
}
}
File.WriteAllText(Path.Combine(assetsFolder, "contents.json"), stickerJson.ToString());
}
else
{
Console.WriteLine(".\\ZapArtist.exe <png image> <asset folder> <sticker pack>");
}
}
