public void BuildLegacyContext_NullWindow_Fails_WithContextCreationException()
{
// Arrange
var wgl = Substitute.For<IWGL>();
var createParameters = new ContextCreationParameters { Device = 1 };
var contextBuilder = new ContextBuilder(wgl);
// Act
TestDelegate test = () => contextBuilder.BuildLegacyContext(createParameters);
// Assert
Assert.That(test, Throws.TypeOf<ContextCreationException>());
}
public void BuildLegacyContext_CannotChoosePixelFormat_ThrowsPixelFormatException()
{
// Arrange
var wgl = Substitute.For<IWGL>();
var desc = new PixelFormatDescriptor();
wgl.ChoosePixelFormat(Arg.Any<IntPtr>(), ref desc).ReturnsForAnyArgs(0);
var builder = new ContextBuilder(wgl);
// Act
TestDelegate build = () => builder.BuildLegacyContext(new ContextCreationParameters {Window = 1, Device = 1});
// Assert
Assert.That(build, Throws.TypeOf<PixelFormatException>());
}
private IntPtr CreateTempOpenGLContext(ContextCreationParameters parameters)
{
var builder = new ContextBuilder(_wgl);
return builder.BuildLegacyContext(parameters);
}
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 BuildLegacyContext_ValidWindowAndHdc_ReturnsContextHandle()
{
// Arrange
var wgl = Substitute.For<IWGL>();
var desc = new PixelFormatDescriptor();
wgl.ChoosePixelFormat(Arg.Any<IntPtr>(), ref desc).ReturnsForAnyArgs(1);
wgl.SetPixelFormat(Arg.Any<IntPtr>(), Arg.Any<int>(), ref desc).ReturnsForAnyArgs(true);
wgl.wglCreateContext(Arg.Any<IntPtr>()).Returns((IntPtr)1);
var builder = new ContextBuilder(wgl);
// Act
var result = builder.BuildLegacyContext(new ContextCreationParameters { Window = 1, Device = 1 });
// Assert
Assert.That(result, Is.EqualTo((IntPtr)1));
}
public void BuildLegacyContext_CreateContextReturnsNull_ThrowsContextCreationException()
{
// Arrange
var wgl = Substitute.For<IWGL>();
var desc = new PixelFormatDescriptor();
wgl.ChoosePixelFormat(Arg.Any<IntPtr>(), ref desc).ReturnsForAnyArgs(1);
wgl.SetPixelFormat(Arg.Any<IntPtr>(), Arg.Any<int>(), ref desc).ReturnsForAnyArgs(true);
wgl.wglCreateContext(Arg.Any<IntPtr>()).Returns(IntPtr.Zero);
var builder = new ContextBuilder(wgl);
// Act
TestDelegate build = () => builder.BuildLegacyContext(new ContextCreationParameters { Window = 1, Device = 1 });
// Assert
Assert.That(build, Throws.TypeOf<ContextCreationException>());
}
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_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_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_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>());
}
