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[Max] Use RelaxGraphicsMode to find optimal mode

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This commit is contained in:
thefiddler 2014-01-22 11:03:40 +01:00
parent 6ba475e23f
commit 0575e63a27
2 changed files with 55 additions and 44 deletions
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56
Source/OpenTK/Platform/MacOS/AglContext.cs
View file

@ -52,8 +52,6 @@ namespace OpenTK.Platform.MacOS
DisplayDevice device;
bool mIsFullscreen = false;
readonly MacOSGraphicsMode ModeSelector = new MacOSGraphicsMode();
public AglContext(GraphicsMode mode, IWindowInfo window, IGraphicsContext shareContext)
{
Debug.Print("Context Type: {0}", shareContext);
@ -103,6 +101,7 @@ namespace OpenTK.Platform.MacOS
aglAttributes.Add((int)pixelFormatAttribute);
aglAttributes.Add(value);
}
void CreateContext(GraphicsMode mode, CarbonWindowInfo carbonWindow, IntPtr shareContextRef, bool fullscreen)
{
Debug.Print("AGL pixel format attributes:");
@ -110,51 +109,30 @@ namespace OpenTK.Platform.MacOS
AGLPixelFormat myAGLPixelFormat;
// Choose a pixel format with the attributes we specified.
if (fullscreen)
{
IntPtr gdevice;
IntPtr cgdevice = GetQuartzDevice(carbonWindow);
IntPtr gdevice;
IntPtr cgdevice = GetQuartzDevice(carbonWindow);
if (cgdevice == IntPtr.Zero)
cgdevice = (IntPtr)DisplayDevice.Default.Id;
if (cgdevice == IntPtr.Zero)
cgdevice = (IntPtr)DisplayDevice.Default.Id;
OSStatus status = Carbon.API.DMGetGDeviceByDisplayID(cgdevice, out gdevice, false);
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");
}
if (status != OSStatus.NoError)
throw new MacOSException(status, "DMGetGDeviceByDisplayID failed.");
IGraphicsMode selector = new MacOSGraphicsMode(gdevice);
Mode = selector.SelectGraphicsMode(
mode.ColorFormat, mode.Depth, mode.Stencil, mode.Samples,
mode.AccumulatorFormat, mode.Buffers, mode.Stereo);
MyAGLReportError("aglChoosePixelFormat");
Debug.Print("Creating AGL context. Sharing with {0}", shareContextRef);
myAGLPixelFormat = Mode.Index.Value;
// 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");

43
Source/OpenTK/Platform/MacOS/MacOSGraphicsMode.cs
View file

@ -37,14 +37,47 @@ namespace OpenTK.Platform.MacOS
class MacOSGraphicsMode : IGraphicsMode
{
readonly IntPtr Device;
public MacOSGraphicsMode(IntPtr device)
{
Device = device;
}
#region IGraphicsMode Members
public GraphicsMode SelectGraphicsMode(ColorFormat color, int depth, int stencil,
int samples, ColorFormat accum, int buffers, bool stereo)
{
IntPtr pixelformat = SelectPixelFormat(
color, depth, stencil, samples, accum, buffers, stereo,
false, IntPtr.Zero);
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);
}
@ -52,7 +85,7 @@ namespace OpenTK.Platform.MacOS
#region Internal Members
internal GraphicsMode GetGraphicsModeFromPixelFormat(IntPtr pixelformat)
GraphicsMode GetGraphicsModeFromPixelFormat(IntPtr pixelformat)
{
int r, g, b, a;
Agl.aglDescribePixelFormat(pixelformat, Agl.PixelFormatAttribute.AGL_RED_SIZE, out r);
@ -75,7 +108,7 @@ namespace OpenTK.Platform.MacOS
depth, stencil, samples, new ColorFormat(ar, ag, ab, aa), buffers + 1, stereo != 0);
}
internal IntPtr SelectPixelFormat(ColorFormat color, int depth, int stencil, int samples,
IntPtr SelectPixelFormat(ColorFormat color, int depth, int stencil, int samples,
ColorFormat accum, int buffers, bool stereo, bool fullscreen, IntPtr device)
{
List<int> attribs = new List<int>();