public void Test_RemoveAlpha()
{
string tempFile = GetTemporaryFileName(".png");
try
{
using (MagickImage image = new MagickImage(Files.MagickNETIconPNG))
{
Assert.IsTrue(image.HasAlpha);
image.ColorAlpha(new MagickColor("yellow"));
image.HasAlpha = true;
image.Write(tempFile);
image.Read(tempFile);
Assert.IsTrue(image.HasAlpha);
PngOptimizer optimizer = new PngOptimizer();
optimizer.LosslessCompress(tempFile);
image.Read(tempFile);
Assert.IsFalse(image.HasAlpha);
}
}
finally
{
FileHelper.Delete(tempFile);
}
}
public void Test_RemoveAlpha()
{
string tempFile = Path.GetTempPath() + Guid.NewGuid().ToString() + ".png";
try
{
using (MagickImage image = new MagickImage(Files.MagickNETIconPNG))
{
Assert.IsTrue(image.HasAlpha);
image.ColorAlpha(new MagickColor("yellow"));
image.HasAlpha = true;
image.Write(tempFile);
image.Read(tempFile);
// TODO: Figure out why this does not fail in a single run but does when all tests are run.
//Assert.IsTrue(image.HasAlpha);
PngOptimizer optimizer = new PngOptimizer();
optimizer.LosslessCompress(tempFile);
image.Read(tempFile);
Assert.IsFalse(image.HasAlpha);
}
}
finally
{
if (File.Exists(tempFile))
{
File.Delete(tempFile);
}
}
}
private void Test(string imagePath, string exePath, string exeArgs, out OptimizerArgs argsOut, out long startingSize)
{
var inputStream = new MemoryStream();
using (var testJpeg = File.OpenRead(imagePath))
{
testJpeg.CopyTo(inputStream);
}
var sut = new PngOptimizer();
sut.ExePath = exePath;
sut.AdditionalToolArguments = exeArgs;
var args = new OptimizerArgs(inputStream);
startingSize = args.Stream.Length;
var stopwatch = new Stopwatch();
stopwatch.Start();
sut.Process(args);
stopwatch.Stop();
output.WriteLine($"Time: {stopwatch.ElapsedMilliseconds}ms");
argsOut = args;
}
public void ShouldNotOptimizeAnimatedPNG()
{
PngOptimizer optimizer = new PngOptimizer();
using (TemporaryFile tempFile = new TemporaryFile(Files.Coders.AnimatedPNGexampleBouncingBeachBallPNG))
{
var result = optimizer.Compress(tempFile);
Assert.IsFalse(result);
}
}
public void QuantizationWillMakeOriginalPngSmaller()
{
var config = new Mock <IRRConfiguration>();
var optimizer = new PngOptimizer(new FileWrapper(), config.Object, new WuQuantizer());
var original = File.ReadAllBytes("testimages\\menu-sprite.png");
var result = optimizer.OptimizePng(original, 0, false);
Assert.True(result.Length < original.Length);
}
public void WillNotAlterOriginalImage()
{
var config = new Mock <IRRConfiguration>();
config.Setup(x => x.ResourcePhysicalPath).Returns("testimages");
var optimizer = new PngOptimizer(new FileWrapper(), config.Object, new WuQuantizer());
var original = File.ReadAllBytes("testimages\\menu-sprite.png");
optimizer.OptimizePng(original, 5, false);
Assert.Equal(original.Length, File.ReadAllBytes("testimages\\menu-sprite.png").Length);
}
public void CompressionWillMakeOriginalPngSmaller()
{
var config = new Mock <IRRConfiguration>();
config.Setup(x => x.ResourcePhysicalPath).Returns("testimages");
var optimizer = new PngOptimizer(new FileWrapper(), config.Object, new WuQuantizer());
var original = File.ReadAllBytes("testimages\\menu-sprite.png");
var result = optimizer.OptimizePng(original, 5, true);
Assert.True(result.Length < original.Length);
}
public void WillCleanupScratchFile()
{
var config = new Mock <IRRConfiguration>();
config.Setup(x => x.ResourcePhysicalPath).Returns("testimages");
var optimizer = new PngOptimizer(new FileWrapper(), config.Object, new WuQuantizer());
var original = File.ReadAllBytes("testimages\\menu-sprite.png");
var fileCount = Directory.GetFiles("testimages").Length;
optimizer.OptimizePng(original, 5, true);
Assert.Equal(fileCount, Directory.GetFiles("testimages").Length);
}
public void Process(GetMediaStreamPipelineArgs args)
{
Assert.ArgumentNotNull(args, "args");
if (args.Options.Thumbnail)
{
return;
}
MediaStream outputStream = args.OutputStream;
if (outputStream == null)
{
return;
}
if (!outputStream.AllowMemoryLoading)
{
Tracer.Error("Could not resize image as it was larger than the maximum size allowed for memory processing. Media item: {0}", outputStream.MediaItem.Path);
return;
}
string mimeType = args.MediaData.MimeType;
if (!mimeType.StartsWith("image/", StringComparison.Ordinal))
{
return;
}
string extension = args.MediaData.Extension;
IImageOptimizer optimizer = null;
if (extension.Equals("png"))
{
optimizer = new PngOptimizer(outputStream.Stream);
}
if (extension.Equals("jpg") || extension.Equals("jpeg"))
{
optimizer = new JpegOptimizer(outputStream.Stream);
}
if (optimizer == null)
{
return;
}
var sw = new Stopwatch();
sw.Start();
var result = optimizer.Optimize();
sw.Stop();
if (result.Success)
{
outputStream.Stream.Close();
Log.Info("Dianoga: optimized {0}.{1} ({2} bytes) - saved {3} bytes / {4:p}. Optimized in {5}ms.".FormatWith(args.OutputStream.MediaItem.MediaPath, args.OutputStream.MediaItem.Extension, result.SizeAfter, result.SizeBefore - result.SizeAfter, 1 - ((result.SizeAfter / (float)result.SizeBefore)), sw.ElapsedMilliseconds), this);
args.OutputStream = new MediaStream(result.CreateResultStream(), outputStream.Extension, outputStream.MediaItem);
}
else
{
Log.Error("Dianoga: unable to optimize {0} because {1}".FormatWith(args.OutputStream.MediaItem.Name, result.ErrorMessage), this);
}
}