internal void SetFullScreen(CarbonWindow wind, out int width, out int height)
{
int displayWidth = wind.Display.Bounds.Width;
int displayHeight = wind.Display.Bounds.Height;
Debug.Print("Switching to full screen {0}x{1} on context {2}",
displayWidth, displayHeight, ContextHandle);
CG.CGDisplayCapture(CG.CGMainDisplayID());
byte code = Agl.aglSetFullScreen(ContextHandle, displayWidth, displayHeight, 0, 0);
Agl.CheckReturnValue(code, "aglSetFullScreen");
MakeCurrent(wind);
width = displayWidth;
height = displayHeight;
// This is a weird hack to workaround a bug where the first time a context
// is made fullscreen, we just end up with a blank screen. So we undo it as fullscreen
// and redo it as fullscreen.
if (!firstFullScreen)
{
firstFullScreen = true;
UnsetFullScreen(wind);
SetFullScreen(wind, out width, out height);
}
mIsFullscreen = true;
}
protected override void Dispose(bool disposing)
{
if (IsDisposed || ContextHandle == IntPtr.Zero)
{
return;
}
Debug.Print("Disposing of AGL context.");
Agl.aglSetCurrentContext(IntPtr.Zero);
//Debug.Print("Setting drawable to null for context {0}.", Handle.Handle);
//Agl.aglSetDrawable(Handle.Handle, IntPtr.Zero);
// I do not know MacOS allows us to destroy a context from a separate thread,
// like the finalizer thread. It's untested, but worst case is probably
// an exception on application exit, which would be logged to the console.
Debug.Print("Destroying context");
byte code = Agl.aglDestroyContext(ContextHandle);
try {
Agl.CheckReturnValue(code, "aglDestroyContext");
ContextHandle = IntPtr.Zero;
Debug.Print("Context destruction completed successfully.");
} catch (MacOSException) {
Debug.Print("Failed to destroy context.");
if (disposing)
{
throw;
}
}
IsDisposed = true;
}
internal void SetFullScreen(CarbonWindowInfo info, out int width, out int height)
{
CarbonGLNative wind = GetCarbonWindow(info);
Debug.Print("Switching to full screen {0}x{1} on context {2}",
wind.TargetDisplayDevice.Width, wind.TargetDisplayDevice.Height, ContextHandle);
CG.CGDisplayCapture(GetQuartzDevice(info));
byte code = Agl.aglSetFullScreen(ContextHandle, wind.TargetDisplayDevice.Width, wind.TargetDisplayDevice.Height, 0, 0);
Agl.CheckReturnValue(code, "aglSetFullScreen");
MakeCurrent(info);
width = wind.TargetDisplayDevice.Width;
height = wind.TargetDisplayDevice.Height;
// This is a weird hack to workaround a bug where the first time a context
// is made fullscreen, we just end up with a blank screen. So we undo it as fullscreen
// and redo it as fullscreen.
if (!firstFullScreen)
{
firstFullScreen = true;
UnsetFullScreen(info);
SetFullScreen(info, out width, out height);
}
mIsFullscreen = true;
}
void SetDrawable(CarbonWindow window)
{
IntPtr windowPort = API.GetWindowPort(window.WinHandle);
//Debug.Print("Setting drawable for context {0} to window port: {1}", Handle.Handle, windowPort);
byte code = Agl.aglSetDrawable(ContextHandle, windowPort);
Agl.CheckReturnValue(code, "aglSetDrawable");
}
void CreateContext(GraphicsMode mode, CarbonWindow wind, bool fullscreen)
{
int[] attribs = GetAttribs(mode, fullscreen);
IntPtr pixelFormat;
// Choose a pixel format with the attributes we specified.
if (fullscreen)
{
IntPtr gdevice;
IntPtr display = CG.CGMainDisplayID();
OSStatus status = API.DMGetGDeviceByDisplayID(display, out gdevice, false);
if (status != OSStatus.NoError)
{
throw new MacOSException(status, "DMGetGDeviceByDisplayID failed.");
}
pixelFormat = Agl.aglChoosePixelFormat(ref gdevice, 1, attribs);
int err = Agl.aglGetError();
if (err == Agl.AGL_BAD_PIXEL_FORMAT)
{
Debug.Print("Failed to create full screen pixel format.");
Debug.Print("Trying again to create a non-fullscreen pixel format.");
CreateContext(mode, wind, false);
return;
}
}
else
{
pixelFormat = Agl.aglChoosePixelFormat(IntPtr.Zero, 0, attribs);
Agl.CheckReturnValue(0, "aglChoosePixelFormat");
}
Debug.Print("Creating AGL context.");
// create the context and share it with the share reference.
ContextHandle = Agl.aglCreateContext(pixelFormat, IntPtr.Zero);
Agl.CheckReturnValue(0, "aglCreateContext");
// Free the pixel format from memory.
Agl.aglDestroyPixelFormat(pixelFormat);
Agl.CheckReturnValue(0, "aglDestroyPixelFormat");
SetDrawable(wind);
Update(wind);
MakeCurrent(wind);
Debug.Print("context: {0}", ContextHandle);
}
internal void UnsetFullScreen(CarbonWindow window)
{
Debug.Print("Unsetting AGL fullscreen.");
byte code = Agl.aglSetDrawable(ContextHandle, IntPtr.Zero);
Agl.CheckReturnValue(code, "aglSetDrawable");
code = Agl.aglUpdateContext(ContextHandle);
Agl.CheckReturnValue(code, "aglUpdateContext");
CG.CGDisplayRelease(CG.CGMainDisplayID());
Debug.Print("Resetting drawable.");
SetDrawable(window);
mIsFullscreen = false;
}
void MakeCurrent(INativeWindow window)
{
byte code = Agl.aglSetCurrentContext(ContextHandle);
Agl.CheckReturnValue(code, "aglSetCurrentContext");
}
public override void SwapBuffers()
{
Agl.aglSwapBuffers(ContextHandle);
Agl.CheckReturnValue(0, "aglSwapBuffers");
}
void CreateContext(GraphicsMode mode, CarbonWindowInfo carbonWindow, bool fullscreen)
{
List <int> attribs = new List <int>();
attribs.Add((int)Agl.PixelFormatAttribute.AGL_RGBA);
attribs.Add((int)Agl.PixelFormatAttribute.AGL_DOUBLEBUFFER);
AddPixelAttrib(attribs, Agl.PixelFormatAttribute.AGL_RED_SIZE, mode.ColorFormat.Red);
AddPixelAttrib(attribs, Agl.PixelFormatAttribute.AGL_GREEN_SIZE, mode.ColorFormat.Green);
AddPixelAttrib(attribs, Agl.PixelFormatAttribute.AGL_BLUE_SIZE, mode.ColorFormat.Blue);
AddPixelAttrib(attribs, Agl.PixelFormatAttribute.AGL_ALPHA_SIZE, mode.ColorFormat.Alpha);
if (mode.Depth > 0)
{
AddPixelAttrib(attribs, Agl.PixelFormatAttribute.AGL_DEPTH_SIZE, mode.Depth);
}
if (mode.Stencil > 0)
{
AddPixelAttrib(attribs, Agl.PixelFormatAttribute.AGL_STENCIL_SIZE, mode.Stencil);
}
if (fullscreen)
{
attribs.Add((int)Agl.PixelFormatAttribute.AGL_FULLSCREEN);
}
attribs.Add((int)Agl.PixelFormatAttribute.AGL_NONE);
Debug.Print("AGL Attribute array: ");
for (int i = 0; i < attribs.Count; i++)
{
Debug.Print(attribs[i].ToString() + " ");
}
Debug.Print("");
AGLPixelFormat aglPixelFormat;
// Choose a pixel format with the attributes we specified.
if (fullscreen)
{
IntPtr gdevice;
IntPtr cgdevice = GetQuartzDevice(carbonWindow);
if (cgdevice == IntPtr.Zero)
{
cgdevice = QuartzDisplayDevice.MainDisplay;
}
OSStatus status = API.DMGetGDeviceByDisplayID(cgdevice, out gdevice, false);
if (status != OSStatus.NoError)
{
throw new MacOSException(status, "DMGetGDeviceByDisplayID failed.");
}
aglPixelFormat = Agl.aglChoosePixelFormat(ref gdevice, 1, attribs.ToArray());
Agl.AglError err = Agl.aglGetError();
if (err == Agl.AglError.BadPixelFormat)
{
Debug.Print("Failed to create full screen pixel format.");
Debug.Print("Trying again to create a non-fullscreen pixel format.");
CreateContext(mode, carbonWindow, false);
return;
}
}
else
{
aglPixelFormat = Agl.aglChoosePixelFormat(IntPtr.Zero, 0, attribs.ToArray());
Agl.CheckReturnValue(0, "aglChoosePixelFormat");
}
Debug.Print("Creating AGL context.");
// create the context and share it with the share reference.
ContextHandle = Agl.aglCreateContext(aglPixelFormat, IntPtr.Zero);
Agl.CheckReturnValue(0, "aglCreateContext");
// Free the pixel format from memory.
Agl.aglDestroyPixelFormat(aglPixelFormat);
Agl.CheckReturnValue(0, "aglDestroyPixelFormat");
SetDrawable(carbonWindow);
Update(carbonWindow);
MakeCurrent(carbonWindow);
Debug.Print("context: {0}", ContextHandle);
}
public override void MakeCurrent(IWindowInfo window)
{
byte code = Agl.aglSetCurrentContext(ContextHandle);
Agl.CheckReturnValue(code, "aglSetCurrentContext");
}