public override void Initialize()
{
if(_initialized)
throw new InvalidOperationException("Context has already been initialized.");
var builder = new ContextBuilder(_wgl);
var tempContext = builder.BuildLegacyContext(_contextParameters);
var finalContext = builder.BuildModernContext(_contextParameters, this, _sharedContext, tempContext);
Handle = finalContext;
_initialized = true;
if (_contextParameters.SwapInterval != null)
{
using (Bind())
{
SetSwapInterval((SwapInterval)_contextParameters.SwapInterval.Value);
}
}
}
public void BuildModernContext_ValidArguments_ReturnsContextHandle()
{
// Arrange
var wgl = Substitute.For<IWGL>();
wgl.wglMakeCurrent(Arg.Any<IntPtr>(), Arg.Any<IntPtr>()).Returns(true);
var lib = Substitute.For<ILibrary>();
wglChoosePixelFormatARB choosePixelFormat = (hdc, list, fList, formats, piFormats, numFormats) => true;
wglCreateContextAttribsARB createContextAttribs = (dc, context, list) => (IntPtr)1;
lib.GetProcedure<wglChoosePixelFormatARB>("wglChoosePixelFormatARB").Returns(choosePixelFormat);
lib.GetProcedure<wglCreateContextAttribsARB>("wglCreateContextAttribsARB").Returns(createContextAttribs);
var builder = new ContextBuilder(wgl);
// Act
var result = builder.BuildModernContext(new ContextCreationParameters { Window = 1, Device = 1 }, lib, null, (IntPtr)1);
// Assert
Assert.That(result, Is.Not.EqualTo(IntPtr.Zero));
}
public void BuildModernContext_CannotFindChoosePixelFormatARB_ThrowsMissingEntryPointException()
{
// Arrange
var wgl = Substitute.For<IWGL>();
wgl.wglMakeCurrent(Arg.Any<IntPtr>(), Arg.Any<IntPtr>()).Returns(true);
var lib = Substitute.For<ILibrary>();
lib.GetProcedure<wglChoosePixelFormatARB>("wglChoosePixelFormatARB").Returns((wglChoosePixelFormatARB)null);
lib.GetProcedure<wglCreateContextAttribsARB>("wglCreateContextAttribsARB").Returns((wglCreateContextAttribsARB)null);
var builder = new ContextBuilder(wgl);
// Act
TestDelegate build =
() => builder.BuildModernContext(new ContextCreationParameters { Window = 1, Device = 1 }, lib, null, (IntPtr)1);
// Assert
Assert.That(build, Throws.TypeOf<MissingEntryPointException>());
}
public void BuildModernContext_CreateContextAttribsReturnsNull_ThrowsContextCreationException()
{
// Arrange
var wgl = Substitute.For<IWGL>();
wgl.wglMakeCurrent(Arg.Any<IntPtr>(), Arg.Any<IntPtr>()).Returns(true);
var lib = Substitute.For<ILibrary>();
wglChoosePixelFormatARB choosePixelFormat = (hdc, list, fList, formats, piFormats, numFormats) => true;
wglCreateContextAttribsARB createContextAttribs = (dc, context, list) => IntPtr.Zero;
lib.GetProcedure<wglChoosePixelFormatARB>("wglChoosePixelFormatARB").Returns(choosePixelFormat);
lib.GetProcedure<wglCreateContextAttribsARB>("wglCreateContextAttribsARB").Returns(createContextAttribs);
var builder = new ContextBuilder(wgl);
// Act
TestDelegate build =
() => builder.BuildModernContext(new ContextCreationParameters { Window = 1, Device = 1 }, lib, null, (IntPtr)1);
// Assert
Assert.That(build, Throws.TypeOf<ContextCreationException>());
}
public void BuildModernContext_CannotBindLegacyContext_ThrowsContextCreationException()
{
// Arrange
var wgl = Substitute.For<IWGL>();
wgl.wglMakeCurrent(Arg.Any<IntPtr>(), Arg.Any<IntPtr>()).Returns(false);
var lib = Substitute.For<ILibrary>();
var builder = new ContextBuilder(wgl);
// Act
TestDelegate build =
() => builder.BuildModernContext(new ContextCreationParameters {Window = 1, Device = 1}, lib, null, (IntPtr) 1);
// Assert
Assert.That(build, Throws.TypeOf<ContextCreationException>());
}