public void WrapSystemDrawingBitmap_WhenOwned()
{
if (ShouldSkipBitmapTest)
{
return;
}
using (var bmp = new Bitmap(51, 23))
{
var memoryManager = new BitmapMemoryManager(bmp);
Bgra32 bg = Color.Red;
Bgra32 fg = Color.Green;
using (var image = Image.WrapMemory(memoryManager, bmp.Width, bmp.Height))
{
Assert.Equal(memoryManager.Memory, image.GetRootFramePixelBuffer().GetSingleMemory());
Assert.True(image.TryGetSinglePixelSpan(out Span <Bgra32> imageSpan));
imageSpan.Fill(bg);
for (var i = 10; i < 20; i++)
{
image.GetPixelRowSpan(i).Slice(10, 10).Fill(fg);
}
}
Assert.True(memoryManager.IsDisposed);
string fn = System.IO.Path.Combine(
TestEnvironment.ActualOutputDirectoryFullPath,
$"{nameof(this.WrapSystemDrawingBitmap_WhenOwned)}.bmp");
bmp.Save(fn, ImageFormat.Bmp);
}
}
public void WrapSystemDrawingBitmap_WhenOwned()
{
if (ShouldSkipBitmapTest)
{
return;
}
using (var bmp = new Bitmap(51, 23))
{
var memoryManager = new BitmapMemoryManager(bmp);
Bgra32 bg = NamedColors <Bgra32> .Red;
Bgra32 fg = NamedColors <Bgra32> .Green;
using (var image = Image.WrapMemory(memoryManager, bmp.Width, bmp.Height))
{
Assert.Equal(memoryManager.Memory, image.GetPixelMemory());
image.Mutate(c => c.Fill(bg).Fill(fg, new RectangularPolygon(10, 10, 10, 10)));
}
Assert.True(memoryManager.IsDisposed);
string fn = System.IO.Path.Combine(
TestEnvironment.ActualOutputDirectoryFullPath,
$"{nameof(this.WrapSystemDrawingBitmap_WhenOwned)}.bmp");
bmp.Save(fn, ImageFormat.Bmp);
}
}
public void WrapSystemDrawingBitmap_WhenObserved()
{
if (ShouldSkipBitmapTest)
{
return;
}
using (var bmp = new Bitmap(51, 23))
{
using (var memoryManager = new BitmapMemoryManager(bmp))
{
Memory <Bgra32> memory = memoryManager.Memory;
Bgra32 bg = Color.Red;
Bgra32 fg = Color.Green;
using (var image = Image.WrapMemory(memory, bmp.Width, bmp.Height))
{
Assert.Equal(memory, image.GetRootFramePixelBuffer().DangerousGetSingleMemory());
image.GetPixelMemoryGroup().Fill(bg);
image.ProcessPixelRows(accessor =>
{
for (var i = 10; i < 20; i++)
{
accessor.GetRowSpan(i).Slice(10, 10).Fill(fg);
}
});
}
Assert.False(memoryManager.IsDisposed);
}
if (!Directory.Exists(TestEnvironment.ActualOutputDirectoryFullPath))
{
Directory.CreateDirectory(TestEnvironment.ActualOutputDirectoryFullPath);
}
string fn = System.IO.Path.Combine(
TestEnvironment.ActualOutputDirectoryFullPath,
$"{nameof(this.WrapSystemDrawingBitmap_WhenObserved)}.bmp");
bmp.Save(fn, ImageFormat.Bmp);
}
}
