public void Constructors()
{
MPSImageHistogramInfo info = new MPSImageHistogramInfo();
info.NumberOfHistogramEntries = 256;
using (var obj = new MPSImageHistogram(MTLDevice.SystemDefault, ref info)) {
var rv = obj.HistogramInfo;
Asserts.AreEqual(info, rv, "HistogramForAlpha");
Assert.IsTrue(obj.ZeroHistogram, "ZeroHistogram");
if (TestRuntime.CheckXcodeVersion(8, 0))
{
// HistogramSizeForSourceFormat was introduced in iOS 9, but no matter which MTLPixelFormat value I pass in,
// the native histogramSizeForSourceFormat: function rudely aborts the entire process with an abrupt:
// > /BuildRoot/Library/Caches/com.apple.xbs/Sources/MetalImage/MetalImage-39.3/MetalImage/Filters/MIHistogram.mm:103: failed assertion `[MPSImageHistogram histogramSizeForSourceFormat:] unsupported texture format: 114'
// I made sure the MTLPixelFormat values I tested with were also added in iOS 9, so that's not the problem.
// Conclusion: just avoid executing HistogramSizeForSourceFormat on anything below iOS 10.rm
Assert.AreEqual(3072, obj.GetHistogramSize(MTLPixelFormat.RGBA16Sint), "HistogramSizeForSourceFormat");
}
var crs = obj.ClipRectSource;
Assert.AreEqual(0, crs.Origin.X, "ClipRectSource.Origin.X");
Assert.AreEqual(0, crs.Origin.Y, "ClipRectSource.Origin.Y");
Assert.AreEqual(0, crs.Origin.Z, "ClipRectSource.Origin.Z");
Assert.AreEqual(-1, crs.Size.Depth, "ClipRectSource.Size.Depth");
Assert.AreEqual(-1, crs.Size.Height, "ClipRectSource.Size.Height");
Assert.AreEqual(-1, crs.Size.Width, "ClipRectSource.Size.Width");
}
}
public void Constructors()
{
TestRuntime.AssertDevice();
TestRuntime.AssertXcodeVersion(7, 0);
MPSImageHistogramInfo info = new MPSImageHistogramInfo();
info.NumberOfHistogramEntries = 256;
using (var obj = new MPSImageHistogram(MTLDevice.SystemDefault, ref info)) {
var rv = obj.HistogramInfo;
Asserts.AreEqual(info, rv, "HistogramForAlpha");
Assert.IsTrue(obj.ZeroHistogram, "ZeroHistogram");
Assert.AreEqual(3072, obj.HistogramSizeForSourceFormat(MTLPixelFormat.RGBA16Sint), "HistogramSizeForSourceFormat");
var crs = obj.ClipRectSource;
Assert.AreEqual(0, crs.Origin.X, "ClipRectSource.Origin.X");
Assert.AreEqual(0, crs.Origin.Y, "ClipRectSource.Origin.Y");
Assert.AreEqual(0, crs.Origin.Z, "ClipRectSource.Origin.Z");
Assert.AreEqual(-1, crs.Size.Depth, "ClipRectSource.Size.Depth");
Assert.AreEqual(-1, crs.Size.Height, "ClipRectSource.Size.Height");
Assert.AreEqual(-1, crs.Size.Width, "ClipRectSource.Size.Width");
}
}
