public GraphicsMode SelectGraphicsMode(ColorFormat color, int depth, int stencil,
int samples, ColorFormat accum, int buffers, bool stereo)
{
IntPtr pixelformat;
do
{
pixelformat = SelectPixelFormat(
color, depth, stencil, samples, accum, buffers, stereo,
true, Device);
Agl.AglError err = Agl.GetError();
if (pixelformat == IntPtr.Zero || err == Agl.AglError.BadPixelFormat)
{
Debug.Print("Failed to create full screen pixel format.");
Debug.Print("Trying again to create a non-fullscreen pixel format.");
pixelformat = SelectPixelFormat(
color, depth, stencil, samples, accum, buffers, stereo,
false, IntPtr.Zero);
}
if (pixelformat == IntPtr.Zero)
{
if (!Utilities.RelaxGraphicsMode(
ref color, ref depth, ref stencil, ref samples, ref accum,
ref buffers, ref stereo))
{
throw new GraphicsModeException("Requested GraphicsMode not available.");
}
}
}while (pixelformat == IntPtr.Zero);
return(GetGraphicsModeFromPixelFormat(pixelformat));
}
private void MyAGLReportError(string function)
{
Agl.AglError error = Agl.GetError();
if (error != Agl.AglError.NoError)
{
throw new MacOSException((OSStatus)error, string.Format("AGL Error from function {0}: {1} {2}", (object)function, (object)error, (object)Agl.ErrorString(error)));
}
}
internal static void aglSetFullScreen(IntPtr ctx, int width, int height, int freq, int device)
{
if ((int)Agl._aglSetFullScreen(ctx, width, height, freq, device) != 0)
{
return;
}
Agl.AglError error = Agl.GetError();
throw new MacOSException(error, Agl.ErrorString(error));
}
internal static void aglSetDrawable(IntPtr ctx, IntPtr draw)
{
if ((int)Agl._aglSetDrawable(ctx, draw) != 0)
{
return;
}
Agl.AglError error = Agl.GetError();
throw new MacOSException(error, Agl.ErrorString(error));
}
void MyAGLReportError(string function)
{
Agl.AglError err = Agl.GetError();
if (err != Agl.AglError.NoError)
{
throw new Exception(String.Format(
"AGL Error from function {0}: {1} {2}",
function, err, Agl.ErrorString(err)));
}
}
internal MacOSException(Agl.AglError errorCode, string message)
: base(message)
{
this.errorCode = (OSStatus)errorCode;
}
void CreateContext(GraphicsMode mode, CarbonWindowInfo carbonWindow,
IntPtr shareContextRef, bool fullscreen)
{
List <int> aglAttributes = new List <int>();
Debug.Print("AGL pixel format attributes:");
Debug.Indent();
AddPixelAttrib(aglAttributes, Agl.PixelFormatAttribute.AGL_RGBA);
AddPixelAttrib(aglAttributes, Agl.PixelFormatAttribute.AGL_DOUBLEBUFFER);
AddPixelAttrib(aglAttributes, Agl.PixelFormatAttribute.AGL_RED_SIZE, mode.ColorFormat.Red);
AddPixelAttrib(aglAttributes, Agl.PixelFormatAttribute.AGL_GREEN_SIZE, mode.ColorFormat.Green);
AddPixelAttrib(aglAttributes, Agl.PixelFormatAttribute.AGL_BLUE_SIZE, mode.ColorFormat.Blue);
AddPixelAttrib(aglAttributes, Agl.PixelFormatAttribute.AGL_ALPHA_SIZE, mode.ColorFormat.Alpha);
if (mode.Depth > 0)
{
AddPixelAttrib(aglAttributes, Agl.PixelFormatAttribute.AGL_DEPTH_SIZE, mode.Depth);
}
if (mode.Stencil > 0)
{
AddPixelAttrib(aglAttributes, Agl.PixelFormatAttribute.AGL_STENCIL_SIZE, mode.Stencil);
}
if (mode.AccumulatorFormat.BitsPerPixel > 0)
{
AddPixelAttrib(aglAttributes, Agl.PixelFormatAttribute.AGL_ACCUM_RED_SIZE, mode.AccumulatorFormat.Red);
AddPixelAttrib(aglAttributes, Agl.PixelFormatAttribute.AGL_ACCUM_GREEN_SIZE, mode.AccumulatorFormat.Green);
AddPixelAttrib(aglAttributes, Agl.PixelFormatAttribute.AGL_ACCUM_BLUE_SIZE, mode.AccumulatorFormat.Blue);
AddPixelAttrib(aglAttributes, Agl.PixelFormatAttribute.AGL_ACCUM_ALPHA_SIZE, mode.AccumulatorFormat.Alpha);
}
if (mode.Samples > 1)
{
AddPixelAttrib(aglAttributes, Agl.PixelFormatAttribute.AGL_SAMPLE_BUFFERS_ARB, 1);
AddPixelAttrib(aglAttributes, Agl.PixelFormatAttribute.AGL_SAMPLES_ARB, mode.Samples);
}
if (fullscreen)
{
AddPixelAttrib(aglAttributes, Agl.PixelFormatAttribute.AGL_FULLSCREEN);
}
AddPixelAttrib(aglAttributes, Agl.PixelFormatAttribute.AGL_NONE);
Debug.Unindent();
Debug.Write("Attribute array: ");
for (int i = 0; i < aglAttributes.Count; i++)
{
Debug.Write(aglAttributes[i].ToString() + " ");
}
Debug.WriteLine("");
AGLPixelFormat myAGLPixelFormat;
// Choose a pixel format with the attributes we specified.
if (fullscreen)
{
IntPtr gdevice;
IntPtr cgdevice = GetQuartzDevice(carbonWindow);
if (cgdevice == IntPtr.Zero)
{
cgdevice = QuartzDisplayDeviceDriver.MainDisplay;
}
OSStatus status = Carbon.API.DMGetGDeviceByDisplayID(
cgdevice, out gdevice, false);
if (status != OSStatus.NoError)
{
throw new MacOSException(status, "DMGetGDeviceByDisplayID failed.");
}
myAGLPixelFormat = Agl.aglChoosePixelFormat(
ref gdevice, 1,
aglAttributes.ToArray());
Agl.AglError err = Agl.GetError();
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, shareContextRef, false);
return;
}
}
else
{
myAGLPixelFormat = Agl.aglChoosePixelFormat(
IntPtr.Zero, 0,
aglAttributes.ToArray());
MyAGLReportError("aglChoosePixelFormat");
}
Debug.Print("Creating AGL context. Sharing with {0}", shareContextRef);
// create the context and share it with the share reference.
Handle = new ContextHandle(Agl.aglCreateContext(myAGLPixelFormat, shareContextRef));
MyAGLReportError("aglCreateContext");
// Free the pixel format from memory.
Agl.aglDestroyPixelFormat(myAGLPixelFormat);
MyAGLReportError("aglDestroyPixelFormat");
Debug.Print("IsControl: {0}", carbonWindow.IsControl);
SetDrawable(carbonWindow);
SetBufferRect(carbonWindow);
Update(carbonWindow);
MakeCurrent(carbonWindow);
Debug.Print("context: {0}", Handle.Handle);
}
internal static string ErrorString(Agl.AglError code)
{
return(Marshal.PtrToStringAnsi(Agl._aglErrorString(code)));
}
private static IntPtr _aglErrorString(Agl.AglError code);
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);
}
void CreateContext(GraphicsMode mode, CarbonWindowInfo carbonWindow, IntPtr shareContextRef, bool fullscreen)
{
Debug.Print("AGL pixel format attributes:");
AGLPixelFormat myAGLPixelFormat;
// Choose a pixel format with the attributes we specified.
if (fullscreen)
{
IntPtr gdevice;
IntPtr cgdevice = GetQuartzDevice(carbonWindow);
if (cgdevice == IntPtr.Zero)
{
cgdevice = (IntPtr)DisplayDevice.Default.Id;
}
OSStatus status = Carbon.API.DMGetGDeviceByDisplayID(cgdevice, out gdevice, false);
if (status != OSStatus.NoError)
{
throw new MacOSException(status, "DMGetGDeviceByDisplayID failed.");
}
myAGLPixelFormat = ModeSelector.SelectPixelFormat(
mode.ColorFormat, mode.Depth, mode.Stencil, mode.Samples,
mode.AccumulatorFormat, mode.Buffers, mode.Stereo,
true, gdevice);
Agl.AglError err = Agl.GetError();
if (myAGLPixelFormat == IntPtr.Zero || 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, shareContextRef, false);
return;
}
}
else
{
myAGLPixelFormat = ModeSelector.SelectPixelFormat(
mode.ColorFormat, mode.Depth, mode.Stencil, mode.Samples,
mode.AccumulatorFormat, mode.Buffers, mode.Stereo,
false, IntPtr.Zero);
MyAGLReportError("aglChoosePixelFormat");
}
Debug.Print("Creating AGL context. Sharing with {0}", shareContextRef);
// create the context and share it with the share reference.
Handle = new ContextHandle(Agl.aglCreateContext(myAGLPixelFormat, shareContextRef));
MyAGLReportError("aglCreateContext");
Mode = ModeSelector.GetGraphicsModeFromPixelFormat(myAGLPixelFormat);
// Free the pixel format from memory.
Agl.aglDestroyPixelFormat(myAGLPixelFormat);
MyAGLReportError("aglDestroyPixelFormat");
Debug.Print("IsControl: {0}", carbonWindow.IsControl);
SetDrawable(carbonWindow);
SetBufferRect(carbonWindow);
Update(carbonWindow);
MakeCurrent(carbonWindow);
Debug.Print("context: {0}", Handle.Handle);
}