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[Mac] Add CocoaContext.GetGraphicsMode via CGL

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Once the context is constructed, we use GetGraphicsMode to retrieve the
exact GraphicsMode that was selected by CocoaContext.
This commit is contained in:
thefiddler 2014-04-23 00:03:07 +02:00
parent 2943bdfecb
commit 287c2b3415
4 changed files with 165 additions and 18 deletions
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2
Source/OpenTK/OpenTK.csproj
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@ -758,7 +758,6 @@
<Compile Include="Platform\SDL2\Sdl2Mouse.cs" />
<Compile Include="Platform\SDL2\Sdl2NativeWindow.cs" />
<Compile Include="Platform\SDL2\Sdl2WindowInfo.cs" />
<Compile Include="Platform\MacOS\Cgl.cs" />
<Compile Include="Platform\SDL2\Sdl2.cs" />
<Compile Include="Platform\Egl\EglSdl2PlatformFactory.cs" />
<Compile Include="Platform\SDL2\Sdl2JoystickDriver.cs" />
@ -821,6 +820,7 @@
<Compile Include="Platform\MacOS\Cocoa\NSEventModifierMask.cs" />
<Compile Include="Platform\MacOS\Cocoa\NSTrackingAreaOptions.cs" />
<Compile Include="Platform\MacOS\Cocoa\NSApplicationPresentationOptions.cs" />
<Compile Include="Platform\MacOS\CarbonBindings\Cgl.cs" />
</ItemGroup>
<Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
<PropertyGroup>

143
Source/OpenTK/Platform/MacOS/CarbonBindings/Cgl.cs Normal file
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@ -0,0 +1,143 @@
// #region License
//
// Cgl.cs
//
// Author:
// Stefanos A. <stapostol@gmail.com>
//
// Copyright (c) 2006-2014 Stefanos Apostolopoulos
//
// 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.Runtime.InteropServices;
namespace OpenTK.Platform.MacOS
{
using CGLPixelFormat = IntPtr;
using CGLContext = IntPtr;
static class Cgl
{
internal enum PixelFormatBool
{
None = 0,
AllRenderers = 1,
Doublebuffer = 5,
Stereo = 6,
AuxBuffers = 7,
MinimumPolicy = 51,
MaximumPolicy = 52,
Offscreen = 53,
AuxDepthStencil = 57,
ColorFloat = 58,
Multisample = 59,
Supersample = 60,
SampleALpha = 61,
SingleRenderer = 71,
NoRecovery = 72,
Accelerated = 73,
ClosestPolicy = 74,
BackingStore = 76,
Window = 80,
Compliant = 83,
PBuffer = 90,
RemotePBuffer = 91,
}
internal enum PixelFormatInt
{
ColorSize = 8,
AlphaSize = 11,
DepthSize = 12,
StencilSize = 13,
AccumSize = 14,
SampleBuffers = 55,
Samples = 56,
RendererID = 70,
DisplayMask = 84,
OpenGLProfile = 99,
VScreenCount = 128,
}
internal enum OpenGLProfileVersion
{
Legacy = 0x100,
Core3_2 = 0x3200,
}
internal enum ParameterNames
{
SwapInterval = 222,
}
internal enum Error
{
None = 0x000,
}
const string cgl = "/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL";
const string cgs = "/System/Library/Frameworks/Carbon.framework/Versions/Current/Carbon";
[DllImport(cgl, EntryPoint = "CGLGetError")]
internal static extern Error GetError();
[DllImport(cgl, EntryPoint = "CGLErrorString")]
private static extern IntPtr CGLErrorString(Error code);
internal static string ErrorString(Error code)
{
return Marshal.PtrToStringAnsi(CGLErrorString(code));
}
[DllImport(cgl, EntryPoint = "CGLChoosePixelFormat")]
internal static extern Error ChoosePixelFormat(int []attribs, ref CGLPixelFormat format, ref int numPixelFormats);
[DllImport(cgl, EntryPoint = "CGLDescribePixelFormat")]
internal static extern Error DescribePixelFormat(CGLPixelFormat pix, int pix_num, PixelFormatInt attrib, out int value);
[DllImport(cgl, EntryPoint = "CGLDescribePixelFormat")]
internal static extern Error DescribePixelFormat(CGLPixelFormat pix, int pix_num, PixelFormatBool attrib, out bool value);
[DllImport(cgl, EntryPoint = "CGLGetPixelFormat")]
internal static extern CGLPixelFormat GetPixelFormat(CGLContext context);
[DllImport(cgl, EntryPoint = "CGLCreateContext")]
internal static extern Error CreateContext(CGLPixelFormat format, CGLContext share, ref CGLContext context);
[DllImport(cgl, EntryPoint = "CGLDestroyPixelFormat")]
internal static extern Error DestroyPixelFormat(CGLPixelFormat format);
[DllImport(cgl, EntryPoint = "CGLGetCurrentContext")]
internal static extern CGLContext GetCurrentContext();
[DllImport(cgl, EntryPoint = "CGLSetCurrentContext")]
internal static extern Error SetCurrentContext(CGLContext context);
[DllImport(cgl, EntryPoint = "CGLDestroyContext")]
internal static extern Error DestroyContext(CGLContext context);
[DllImport(cgl, EntryPoint = "CGLSetParameter")]
internal static extern Error SetParameter(CGLContext context, int parameter, ref int value);
[DllImport(cgl, EntryPoint = "CGLFlushDrawable")]
internal static extern Error FlushDrawable(CGLContext context);
[DllImport(cgl, EntryPoint = "CGLSetSurface")]
internal static extern Error SetSurface(CGLContext context, int conId, int winId, int surfId);
[DllImport(cgl, EntryPoint = "CGLUpdateContext")]
internal static extern Error UpdateContext(CGLContext context);
[DllImport(cgs, EntryPoint = "CGSMainConnectionID")]
internal static extern int MainConnectionID();
[DllImport(cgs, EntryPoint = "CGSGetSurfaceCount")]
internal static extern Error GetSurfaceCount(int conId, int winId, ref int count);
[DllImport(cgs, EntryPoint = "CGSGetSurfaceList")]
internal static extern Error GetSurfaceList(int conId, int winId, int count, ref int ids, ref int filled);
}
}

16
Source/OpenTK/Platform/MacOS/Cgl.cs
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@ -1,16 +0,0 @@
using System;
using System.Runtime.InteropServices;
namespace OpenTK.Platform.MacOS
{
using CGLContextObj = IntPtr;
static class Cgl
{
const string lib = "/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL";
[DllImport(lib, EntryPoint = "CGLGetCurrentContext")]
public static extern CGLContextObj GetCurrentContext();
}
}

22
Source/OpenTK/Platform/MacOS/CocoaContext.cs
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@ -149,11 +149,31 @@ namespace OpenTK
// Finalize
Handle = new ContextHandle(context);
Mode = mode;
Mode = GetGraphicsMode(context);
Update(cocoaWindow);
MakeCurrent(cocoaWindow);
}
private GraphicsMode GetGraphicsMode(IntPtr context)
{
IntPtr cgl_context = Cocoa.SendIntPtr(context, Selector.Get("CGLContextObj"));
IntPtr cgl_format = Cgl.GetPixelFormat(cgl_context);
int id = 0; // CGL does not support the concept of a pixel format id
int color, depth, stencil, samples, accum;
bool doublebuffer, stereo;
Cgl.DescribePixelFormat(cgl_format, 0, Cgl.PixelFormatInt.ColorSize, out color);
Cgl.DescribePixelFormat(cgl_format, 0, Cgl.PixelFormatInt.DepthSize, out depth);
Cgl.DescribePixelFormat(cgl_format, 0, Cgl.PixelFormatInt.StencilSize, out stencil);
Cgl.DescribePixelFormat(cgl_format, 0, Cgl.PixelFormatInt.Samples, out samples);
Cgl.DescribePixelFormat(cgl_format, 0, Cgl.PixelFormatInt.AccumSize, out accum);
Cgl.DescribePixelFormat(cgl_format, 0, Cgl.PixelFormatBool.Doublebuffer, out doublebuffer);
Cgl.DescribePixelFormat(cgl_format, 0, Cgl.PixelFormatBool.Stereo, out stereo);
return new GraphicsMode((IntPtr)id, color, depth, stencil, samples, accum, doublebuffer ? 2 : 1, stereo);
}
public override void SwapBuffers()
{
Cocoa.SendVoid(Handle.Handle, selFlushBuffer);