public void ApplyColorInversionTest()
{
// Input are expected are provided as resources, dithered is what
// we are testing
Bitmap input, inverted, expected;
input = Properties.Resources.white_bitmap;
var path = Path.Combine(baseDir, "white_inverse_test.bmp");
input.Save(path);
using (var logo = new PrinterImage(path))
{
logo.Resize(input.Width, 0, true);
Assert.IsFalse(logo.IsInverted);
logo.ApplyColorInversion();
inverted = logo.ImageData.ToBitmap();
expected = Properties.Resources.black_bitmap;
// White should ivnert to black
Assert.IsTrue(ImageTestHelpers.CompareMemCmp(expected, inverted));
Assert.True(logo.IsInverted);
// Flip back to white, test that the inversion flag is cleared
logo.ApplyColorInversion();
Assert.IsFalse(logo.IsInverted);
};
}
public void BitmapImageToBitmapTest()
{
var bmps = new List <Bitmap>();
bmps.Add(Properties.Resources.gray_bitmap);
bmps.Add(Properties.Resources.white_bitmap);
bmps.Add(Properties.Resources.black_bitmap);
bmps.Add(Properties.Resources.red_bitmap);
bmps.Add(Properties.Resources.green_bitmap);
bmps.Add(Properties.Resources.blue_bitmap);
foreach (var inbmp in bmps)
{
using (var memory = new MemoryStream())
{
inbmp.Save(memory, ImageFormat.Png);
memory.Position = 0;
var id = new BitmapImage();
id.BeginInit();
id.StreamSource = memory;
id.CacheOption = BitmapCacheOption.OnLoad;
id.EndInit();
Assert.IsTrue(ImageTestHelpers.CompareMemCmp(inbmp, id.ToBitmap()));
}
}
}
public void BitmapToBufferTest()
{
var inbmp = Properties.Resources.gray_bitmap;
var expectedBuff = ImageTestHelpers.BGRAGenerator(new byte[] { 128, 128, 128, 255 }, inbmp.Height * inbmp.Width);
Assert.AreEqual(ImageConvertResults.Success, ImageTestHelpers.TestBitmapConversion(inbmp, expectedBuff));
inbmp = Properties.Resources.white_bitmap;
expectedBuff = ImageTestHelpers.BGRAGenerator(new byte[] { 255, 255, 255, 255 }, inbmp.Height * inbmp.Width);
Assert.AreEqual(ImageConvertResults.Success, ImageTestHelpers.TestBitmapConversion(inbmp, expectedBuff));
inbmp = Properties.Resources.black_bitmap;
expectedBuff = ImageTestHelpers.BGRAGenerator(new byte[] { 0, 0, 0, 255 }, inbmp.Height * inbmp.Width);
Assert.AreEqual(ImageConvertResults.Success, ImageTestHelpers.TestBitmapConversion(inbmp, expectedBuff));
inbmp = Properties.Resources.red_bitmap;
expectedBuff = ImageTestHelpers.BGRAGenerator(new byte[] { 0, 0, 255, 255 }, inbmp.Height * inbmp.Width);
Assert.AreEqual(ImageConvertResults.Success, ImageTestHelpers.TestBitmapConversion(inbmp, expectedBuff));
inbmp = Properties.Resources.green_bitmap;
expectedBuff = ImageTestHelpers.BGRAGenerator(new byte[] { 0, 255, 0, 255 }, inbmp.Height * inbmp.Width);
Assert.AreEqual(ImageConvertResults.Success, ImageTestHelpers.TestBitmapConversion(inbmp, expectedBuff));
inbmp = Properties.Resources.blue_bitmap;
expectedBuff = ImageTestHelpers.BGRAGenerator(new byte[] { 255, 0, 0, 255 }, inbmp.Height * inbmp.Width);
Assert.AreEqual(ImageConvertResults.Success, ImageTestHelpers.TestBitmapConversion(inbmp, expectedBuff));
}
public void GetDithererFloydSteinbergTest()
{
bool debugSave = true;
// Input are expected are provided as resources, dithered is what
// we are testing
Bitmap input, dithered, expected;
input = Properties.Resources.gray_bitmap;
expected = Properties.Resources.gray_floydsteinbergs;
dithered = DitherFactory.GetDitherer(Algorithms.FloydSteinberg).GenerateDithered(input);
if (debugSave)
{
expected.Save(Path.Combine(baseDir, "gray_floydsteinbergs.bmp"));
dithered.Save(Path.Combine(baseDir, "actual_FloydSteinbergs.bmp"));
}
Assert.IsTrue(ImageTestHelpers.CompareMemCmp(expected, dithered));
}
public void BitmapInvertColorChannelsTest()
{
var inbmp = Properties.Resources.gray_bitmap;
var expectedBuff = ImageTestHelpers.BGRAGenerator(new byte[] { 128, 128, 128, 255 }, inbmp.Height * inbmp.Width);
inbmp.InvertColorChannels();
var actualBuff = inbmp.ToBuffer();
Assert.AreEqual(expectedBuff, actualBuff);
inbmp = Properties.Resources.white_bitmap;
expectedBuff = ImageTestHelpers.BGRAGenerator(new byte[] { 0, 0, 0, 255 }, inbmp.Height * inbmp.Width);
inbmp.InvertColorChannels();
actualBuff = inbmp.ToBuffer();
Assert.AreEqual(expectedBuff, actualBuff);
inbmp = Properties.Resources.black_bitmap;
expectedBuff = ImageTestHelpers.BGRAGenerator(new byte[] { 255, 255, 255, 255 }, inbmp.Height * inbmp.Width);
inbmp.InvertColorChannels();
actualBuff = inbmp.ToBuffer();
Assert.AreEqual(expectedBuff, actualBuff);
inbmp = Properties.Resources.red_bitmap;
expectedBuff = ImageTestHelpers.BGRAGenerator(new byte[] { 255, 255, 0, 255 }, inbmp.Height * inbmp.Width);
inbmp.InvertColorChannels();
actualBuff = inbmp.ToBuffer();
Assert.AreEqual(expectedBuff, actualBuff);
inbmp = Properties.Resources.green_bitmap;
expectedBuff = ImageTestHelpers.BGRAGenerator(new byte[] { 255, 0, 255, 255 }, inbmp.Height * inbmp.Width);
inbmp.InvertColorChannels();
actualBuff = inbmp.ToBuffer();
Assert.AreEqual(expectedBuff, actualBuff);
inbmp = Properties.Resources.blue_bitmap;
expectedBuff = ImageTestHelpers.BGRAGenerator(new byte[] { 0, 255, 255, 255 }, inbmp.Height * inbmp.Width);
inbmp.InvertColorChannels();
actualBuff = inbmp.ToBuffer();
Assert.AreEqual(expectedBuff, actualBuff);
}
