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* MacOSGraphicsMode.cs:

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* CarbonBindings/Agl.cs: Added AGL-based GraphicsMode detection on Mac
  OS X. Fixes issue [#1679]: "GraphicsMode returns hardcoded mode on
  Mac OS X".
This commit is contained in:
the_fiddler 2010-11-24 00:55:19 +00:00
parent 4f041bca92
commit 7a83b5decb
2 changed files with 142 additions and 9 deletions
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2
Source/OpenTK/Platform/MacOS/CarbonBindings/Agl.cs
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@ -297,7 +297,7 @@ namespace OpenTK.Platform.MacOS
[DllImport(agl)] internal static extern AGLPixelFormat aglChoosePixelFormat(IntPtr gdevs, int ndev, int []attribs);
[DllImport(agl)] internal static extern void aglDestroyPixelFormat(AGLPixelFormat pix);
[DllImport(agl)] internal static extern AGLPixelFormat aglNextPixelFormat(AGLPixelFormat pix);
[DllImport(agl)] static extern byte aglDescribePixelFormat(AGLPixelFormat pix, int attrib, out int value);
[DllImport(agl)] internal static extern bool aglDescribePixelFormat(AGLPixelFormat pix, PixelFormatAttribute attrib, out int value);
[Obsolete("Use aglDisplaysOfPixelFormat instead.")]
[DllImport(agl)] static extern AGLDevice *aglDevicesOfPixelFormat(AGLPixelFormat pix, int *ndevs);

143
Source/OpenTK/Platform/MacOS/MacOSGraphicsMode.cs
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@ -1,22 +1,155 @@
#region License
//
// The Open Toolkit Library License
//
// Copyright (c) 2006 - 2010 the Open Toolkit library.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do
// so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
//
#endregion
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Text;
using OpenTK.Graphics;
namespace OpenTK.Platform.MacOS
{
using Graphics;
using Carbon;
class MacOSGraphicsMode : IGraphicsMode
{
#region IGraphicsMode Members
public GraphicsMode SelectGraphicsMode(ColorFormat color, int depth, int stencil, int samples, ColorFormat accum, int buffers, bool stereo)
public GraphicsMode SelectGraphicsMode(ColorFormat color, int depth, int stencil,
int samples, ColorFormat accum, int buffers, bool stereo)
{
GraphicsMode gfx = new GraphicsMode((IntPtr)1, color, depth, stencil, samples, accum, buffers, stereo);
IntPtr pixelformat = SelectPixelFormat(color, depth, stencil, samples, accum, buffers, stereo);
return GetGraphicsModeFromPixelFormat(pixelformat);
}
System.Diagnostics.Debug.Print("Created dummy graphics mode.");
#endregion
return gfx;
#region Private Members
GraphicsMode GetGraphicsModeFromPixelFormat(IntPtr pixelformat)
{
int r, g, b, a;
Agl.aglDescribePixelFormat(pixelformat, Agl.PixelFormatAttribute.AGL_RED_SIZE, out r);
Agl.aglDescribePixelFormat(pixelformat, Agl.PixelFormatAttribute.AGL_GREEN_SIZE, out g);
Agl.aglDescribePixelFormat(pixelformat, Agl.PixelFormatAttribute.AGL_BLUE_SIZE, out b);
Agl.aglDescribePixelFormat(pixelformat, Agl.PixelFormatAttribute.AGL_ALPHA_SIZE, out a);
int ar, ag, ab, aa;
Agl.aglDescribePixelFormat(pixelformat, Agl.PixelFormatAttribute.AGL_ACCUM_ALPHA_SIZE, out aa);
Agl.aglDescribePixelFormat(pixelformat, Agl.PixelFormatAttribute.AGL_ACCUM_RED_SIZE, out ar);
Agl.aglDescribePixelFormat(pixelformat, Agl.PixelFormatAttribute.AGL_ACCUM_GREEN_SIZE, out ag);
Agl.aglDescribePixelFormat(pixelformat, Agl.PixelFormatAttribute.AGL_ACCUM_BLUE_SIZE, out ab);
int depth, stencil, samples, buffers, stereo;
Agl.aglDescribePixelFormat(pixelformat, Agl.PixelFormatAttribute.AGL_DEPTH_SIZE, out depth);
Agl.aglDescribePixelFormat(pixelformat, Agl.PixelFormatAttribute.AGL_STENCIL_SIZE, out stencil);
Agl.aglDescribePixelFormat(pixelformat, Agl.PixelFormatAttribute.AGL_SAMPLES_ARB, out samples);
Agl.aglDescribePixelFormat(pixelformat, Agl.PixelFormatAttribute.AGL_DOUBLEBUFFER, out buffers);
Agl.aglDescribePixelFormat(pixelformat, Agl.PixelFormatAttribute.AGL_STEREO, out stereo);
return new GraphicsMode(pixelformat, new ColorFormat(r, g, b, a),
depth, stencil, samples, new ColorFormat(ar, ag, ab, aa), buffers + 1, stereo != 0);
}
IntPtr SelectPixelFormat(ColorFormat color, int depth, int stencil, int samples,
ColorFormat accum, int buffers, bool stereo)
{
List<int> attribs = new List<int>();
Debug.Print("Bits per pixel: {0}", color.BitsPerPixel);
if (color.BitsPerPixel > 0)
{
if (!color.IsIndexed)
{
attribs.Add((int)Agl.PixelFormatAttribute.AGL_RGBA);
}
attribs.Add((int)Agl.PixelFormatAttribute.AGL_RED_SIZE);
attribs.Add(color.Red);
attribs.Add((int)Agl.PixelFormatAttribute.AGL_GREEN_SIZE);
attribs.Add(color.Green);
attribs.Add((int)Agl.PixelFormatAttribute.AGL_BLUE_SIZE);
attribs.Add(color.Blue);
attribs.Add((int)Agl.PixelFormatAttribute.AGL_ALPHA_SIZE);
attribs.Add(color.Alpha);
}
Debug.Print("Depth: {0}", depth);
if (depth > 0)
{
attribs.Add((int)Agl.PixelFormatAttribute.AGL_DEPTH_SIZE);
attribs.Add(depth);
}
if (buffers > 1)
{
attribs.Add((int)Agl.PixelFormatAttribute.AGL_DOUBLEBUFFER);
}
if (stencil > 1)
{
attribs.Add((int)Agl.PixelFormatAttribute.AGL_STENCIL_SIZE);
attribs.Add(stencil);
}
if (accum.BitsPerPixel > 0)
{
attribs.Add((int)Agl.PixelFormatAttribute.AGL_ACCUM_ALPHA_SIZE);
attribs.Add(accum.Alpha);
attribs.Add((int)Agl.PixelFormatAttribute.AGL_ACCUM_BLUE_SIZE);
attribs.Add(accum.Blue);
attribs.Add((int)Agl.PixelFormatAttribute.AGL_ACCUM_GREEN_SIZE);
attribs.Add(accum.Green);
attribs.Add((int)Agl.PixelFormatAttribute.AGL_ACCUM_RED_SIZE);
attribs.Add(accum.Red);
}
if (samples > 0)
{
attribs.Add((int)Agl.PixelFormatAttribute.AGL_SAMPLE_BUFFERS_ARB);
attribs.Add(1);
attribs.Add((int)Agl.PixelFormatAttribute.AGL_SAMPLES_ARB);
attribs.Add(samples);
}
if (stereo)
{
attribs.Add((int)Agl.PixelFormatAttribute.AGL_STEREO);
}
attribs.Add(0);
attribs.Add(0);
IntPtr pixelformat = Agl.aglChoosePixelFormat(IntPtr.Zero, 0, attribs.ToArray());
if (pixelformat == IntPtr.Zero)
{
throw new GraphicsModeException(String.Format(
"[Error] Failed to select GraphicsMode, error {0}.", Agl.GetError()));
}
return pixelformat;
}
#endregion