public void ToCGImageTest()
{
if (!TestRuntime.CheckSystemAndSDKVersion(9, 0))
{
Assert.Ignore("Ignoring VideoToolbox.VTUtilitiesTests: Requires iOS9+");
}
#if MONOMAC
var originalImage = new NSImage(NSBundle.MainBundle.PathForResource("Xam", "png", "CoreImage"));
#else
var originalImage = UIImage.FromBundle("CoreImage/Xam.png");
#endif
var originalCGImage = originalImage.CGImage;
var pxbuffer = new CVPixelBuffer(originalCGImage.Width, originalCGImage.Height, CVPixelFormatType.CV32ARGB,
new CVPixelBufferAttributes {
CGImageCompatibility = true, CGBitmapContextCompatibility = true
});
#if !__TVOS__
pxbuffer.Lock(CVOptionFlags.None);
#else
pxbuffer.Lock(CVPixelBufferLock.None);
#endif
using (var colorSpace = CGColorSpace.CreateDeviceRGB())
using (var ctx = new CGBitmapContext(pxbuffer.BaseAddress, originalCGImage.Width, originalCGImage.Height, 8,
4 * originalCGImage.Width, colorSpace, CGBitmapFlags.NoneSkipLast)) {
ctx.RotateCTM(0);
ctx.DrawImage(new RectangleF(0, 0, originalCGImage.Width, originalCGImage.Height), originalCGImage);
#if !__TVOS__
pxbuffer.Unlock(CVOptionFlags.None);
#else
pxbuffer.Unlock(CVPixelBufferLock.None);
#endif
}
Assert.NotNull(pxbuffer, "VTUtilitiesTests.ToCGImageTest pxbuffer should not be null");
CGImage newImage;
var newImageStatus = pxbuffer.ToCGImage(out newImage);
Assert.That(newImageStatus == VTStatus.Ok, "VTUtilitiesTests.ToCGImageTest must be ok");
Assert.NotNull(newImage, "VTUtilitiesTests.ToCGImageTest pxbuffer should not be newImage");
Assert.AreEqual(originalCGImage.Width, newImage.Width, "VTUtilitiesTests.ToCGImageTest");
Assert.AreEqual(originalCGImage.Height, newImage.Height, "VTUtilitiesTests.ToCGImageTest");
var retainCount = CFGetRetainCount(newImage.Handle);
Assert.That(retainCount, Is.EqualTo(1), "RetainCount");
}
public void ToCGImageTest()
{
TestRuntime.AssertSystemVersion(PlatformName.iOS, 9, 0, throwIfOtherPlatform: false);
TestRuntime.AssertSystemVersion(PlatformName.MacOSX, 10, 11, throwIfOtherPlatform: false);
TestRuntime.AssertSystemVersion(PlatformName.TvOS, 10, 2, throwIfOtherPlatform: false);
#if MONOMAC
var originalImage = new NSImage(NSBundle.MainBundle.PathForResource("Xam", "png", "CoreImage"));
#else
var originalImage = UIImage.FromBundle("CoreImage/Xam.png");
#endif
var originalCGImage = originalImage.CGImage;
var pxbuffer = new CVPixelBuffer(originalCGImage.Width, originalCGImage.Height, CVPixelFormatType.CV32ARGB,
new CVPixelBufferAttributes {
CGImageCompatibility = true, CGBitmapContextCompatibility = true
});
#if !XAMCORE_3_0
pxbuffer.Lock(CVOptionFlags.None);
#else
pxbuffer.Lock(CVPixelBufferLock.None);
#endif
using (var colorSpace = CGColorSpace.CreateDeviceRGB())
using (var ctx = new CGBitmapContext(pxbuffer.BaseAddress, originalCGImage.Width, originalCGImage.Height, 8,
4 * originalCGImage.Width, colorSpace, CGBitmapFlags.NoneSkipLast)) {
ctx.RotateCTM(0);
ctx.DrawImage(new CGRect(0, 0, originalCGImage.Width, originalCGImage.Height), originalCGImage);
#if !XAMCORE_3_0
pxbuffer.Unlock(CVOptionFlags.None);
#else
pxbuffer.Unlock(CVPixelBufferLock.None);
#endif
}
Assert.NotNull(pxbuffer, "VTUtilitiesTests.ToCGImageTest pxbuffer should not be null");
CGImage newImage;
var newImageStatus = pxbuffer.ToCGImage(out newImage);
Assert.That(newImageStatus == VTStatus.Ok, "VTUtilitiesTests.ToCGImageTest must be ok");
Assert.NotNull(newImage, "VTUtilitiesTests.ToCGImageTest pxbuffer should not be newImage");
Assert.AreEqual(originalCGImage.Width, newImage.Width, "VTUtilitiesTests.ToCGImageTest");
Assert.AreEqual(originalCGImage.Height, newImage.Height, "VTUtilitiesTests.ToCGImageTest");
var retainCount = CFGetRetainCount(newImage.Handle);
Assert.That(retainCount, Is.EqualTo(1), "RetainCount");
}
