mirror of
https://github.com/Ryujinx/Opentk.git
synced 2024-12-27 07:15:29 +00:00
273 lines
12 KiB
C#
273 lines
12 KiB
C#
#region License
|
|
//
|
|
// The Open Toolkit Library License
|
|
//
|
|
// Copyright (c) 2006 - 2009 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.Text;
|
|
using System.Windows.Forms;
|
|
using System.Diagnostics;
|
|
using System.Runtime.InteropServices;
|
|
|
|
using OpenTK.Graphics;
|
|
using ColorDepth = OpenTK.Graphics.ColorFormat;
|
|
|
|
namespace OpenTK.Platform.Windows
|
|
{
|
|
internal class WinGraphicsMode : IGraphicsMode
|
|
{
|
|
// Todo: Get rid of the System.Windows.Forms.Control dependency.
|
|
|
|
#region --- Fields ---
|
|
|
|
// To avoid recursion when calling GraphicsMode.Default
|
|
bool creating;
|
|
|
|
#endregion
|
|
|
|
#region --- Constructors ---
|
|
|
|
public WinGraphicsMode()
|
|
{
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region --- IGraphicsMode Members ---
|
|
|
|
public GraphicsMode SelectGraphicsMode(ColorDepth color, int depth, int stencil, int samples, ColorDepth accum,
|
|
int buffers, bool stereo)
|
|
{
|
|
GraphicsMode mode = null;
|
|
if (!creating)
|
|
{
|
|
try
|
|
{
|
|
creating = true;
|
|
mode = SelectGraphicsModeARB(color, depth, stencil, samples, accum, buffers, stereo);
|
|
}
|
|
finally
|
|
{
|
|
creating = false;
|
|
}
|
|
}
|
|
if (mode == null)
|
|
mode = SelectGraphicsModePFD(color, depth, stencil, samples, accum, buffers, stereo);
|
|
return mode;
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region --- Private Methods ---
|
|
|
|
#region SelectGraphicsModePFD
|
|
|
|
GraphicsMode SelectGraphicsModePFD(ColorDepth color, int depth, int stencil, int samples, ColorDepth accum,
|
|
int buffers, bool stereo)
|
|
{
|
|
using (Control native_window = new Control())
|
|
using (WinWindowInfo window = new WinWindowInfo(native_window.Handle, null))
|
|
{
|
|
IntPtr deviceContext = ((WinWindowInfo)window).DeviceContext;
|
|
Debug.WriteLine(String.Format("Device context: {0}", deviceContext));
|
|
|
|
Debug.Write("Selecting pixel format... ");
|
|
PixelFormatDescriptor pixelFormat = new PixelFormatDescriptor();
|
|
pixelFormat.Size = API.PixelFormatDescriptorSize;
|
|
pixelFormat.Version = API.PixelFormatDescriptorVersion;
|
|
pixelFormat.Flags =
|
|
PixelFormatDescriptorFlags.SUPPORT_OPENGL |
|
|
PixelFormatDescriptorFlags.DRAW_TO_WINDOW;
|
|
pixelFormat.ColorBits = (byte)(color.Red + color.Green + color.Blue);
|
|
|
|
pixelFormat.PixelType = color.IsIndexed ? PixelType.INDEXED : PixelType.RGBA;
|
|
pixelFormat.RedBits = (byte)color.Red;
|
|
pixelFormat.GreenBits = (byte)color.Green;
|
|
pixelFormat.BlueBits = (byte)color.Blue;
|
|
pixelFormat.AlphaBits = (byte)color.Alpha;
|
|
|
|
if (accum.BitsPerPixel > 0)
|
|
{
|
|
pixelFormat.AccumBits = (byte)(accum.Red + accum.Green + accum.Blue);
|
|
pixelFormat.AccumRedBits = (byte)accum.Red;
|
|
pixelFormat.AccumGreenBits = (byte)accum.Green;
|
|
pixelFormat.AccumBlueBits = (byte)accum.Blue;
|
|
pixelFormat.AccumAlphaBits = (byte)accum.Alpha;
|
|
}
|
|
|
|
pixelFormat.DepthBits = (byte)depth;
|
|
pixelFormat.StencilBits = (byte)stencil;
|
|
|
|
if (depth <= 0) pixelFormat.Flags |= PixelFormatDescriptorFlags.DEPTH_DONTCARE;
|
|
if (stereo) pixelFormat.Flags |= PixelFormatDescriptorFlags.STEREO;
|
|
if (buffers > 1) pixelFormat.Flags |= PixelFormatDescriptorFlags.DOUBLEBUFFER;
|
|
|
|
int pixel = Functions.ChoosePixelFormat(deviceContext, ref pixelFormat);
|
|
if (pixel == 0)
|
|
throw new GraphicsModeException("The requested GraphicsMode is not available.");
|
|
|
|
// Find out what we really got as a format:
|
|
PixelFormatDescriptor pfd = new PixelFormatDescriptor();
|
|
pixelFormat.Size = API.PixelFormatDescriptorSize;
|
|
pixelFormat.Version = API.PixelFormatDescriptorVersion;
|
|
Functions.DescribePixelFormat(deviceContext, pixel, API.PixelFormatDescriptorSize, ref pfd);
|
|
GraphicsMode fmt = new GraphicsMode((IntPtr)pixel,
|
|
new ColorDepth(pfd.RedBits, pfd.GreenBits, pfd.BlueBits, pfd.AlphaBits),
|
|
pfd.DepthBits,
|
|
pfd.StencilBits,
|
|
0,
|
|
new ColorDepth(pfd.AccumBits),
|
|
(pfd.Flags & PixelFormatDescriptorFlags.DOUBLEBUFFER) != 0 ? 2 : 1,
|
|
(pfd.Flags & PixelFormatDescriptorFlags.STEREO) != 0);
|
|
|
|
return fmt;
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region SelectGraphicsModeARB
|
|
|
|
GraphicsMode SelectGraphicsModeARB(ColorDepth color, int depth, int stencil, int samples, ColorDepth accum,
|
|
int buffers, bool stereo)
|
|
{
|
|
using (INativeWindow native_window = new NativeWindow())
|
|
using (IGraphicsContext context = new GraphicsContext(new GraphicsMode(new ColorFormat(), 0, 0, 0, new ColorFormat(), 2, false), native_window.WindowInfo, 1, 0, GraphicsContextFlags.Default))
|
|
{
|
|
WinWindowInfo window = (WinWindowInfo)native_window.WindowInfo;
|
|
|
|
// See http://www.opengl.org/registry/specs/ARB/wgl_pixel_format.txt
|
|
// for more details
|
|
Debug.Write("Selecting pixel format (ARB)... ");
|
|
if (Wgl.Delegates.wglChoosePixelFormatARB == null || Wgl.Delegates.wglGetPixelFormatAttribivARB == null)
|
|
{
|
|
Debug.WriteLine("failed");
|
|
return null;
|
|
}
|
|
|
|
int[] attribs = new int[]
|
|
{
|
|
(int)WGL_ARB_pixel_format.AccelerationArb,
|
|
|
|
(int)WGL_ARB_pixel_format.RedBitsArb,
|
|
(int)WGL_ARB_pixel_format.GreenBitsArb,
|
|
(int)WGL_ARB_pixel_format.BlueBitsArb,
|
|
(int)WGL_ARB_pixel_format.AlphaBitsArb,
|
|
(int)WGL_ARB_pixel_format.ColorBitsArb,
|
|
|
|
(int)WGL_ARB_pixel_format.DepthBitsArb,
|
|
(int)WGL_ARB_pixel_format.StencilBitsArb,
|
|
|
|
(int)WGL_ARB_multisample.SampleBuffersArb,
|
|
(int)WGL_ARB_multisample.SamplesArb,
|
|
|
|
(int)WGL_ARB_pixel_format.AccumRedBitsArb,
|
|
(int)WGL_ARB_pixel_format.AccumGreenBitsArb,
|
|
(int)WGL_ARB_pixel_format.AccumBlueBitsArb,
|
|
(int)WGL_ARB_pixel_format.AccumAlphaBitsArb,
|
|
(int)WGL_ARB_pixel_format.AccumBitsArb,
|
|
|
|
(int)WGL_ARB_pixel_format.DoubleBufferArb,
|
|
(int)WGL_ARB_pixel_format.StereoArb,
|
|
0
|
|
};
|
|
|
|
int[] values = new int[attribs.Length];
|
|
|
|
int[] attribs_values = new int[]
|
|
{
|
|
(int)WGL_ARB_pixel_format.AccelerationArb, (int)WGL_ARB_pixel_format.FullAccelerationArb,
|
|
(int)WGL_ARB_pixel_format.DrawToWindowArb, 1,
|
|
|
|
(int)WGL_ARB_pixel_format.RedBitsArb, color.Red,
|
|
(int)WGL_ARB_pixel_format.GreenBitsArb, color.Green,
|
|
(int)WGL_ARB_pixel_format.BlueBitsArb, color.Blue,
|
|
(int)WGL_ARB_pixel_format.AlphaBitsArb, color.Alpha,
|
|
(int)WGL_ARB_pixel_format.ColorBitsArb, color.BitsPerPixel - color.Alpha, // Should not contain alpha bpp (see spec)
|
|
|
|
(int)WGL_ARB_pixel_format.DepthBitsArb, depth,
|
|
(int)WGL_ARB_pixel_format.StencilBitsArb, stencil,
|
|
|
|
(int)WGL_ARB_multisample.SampleBuffersArb, samples > 0 ? 1 : 0,
|
|
(int)WGL_ARB_multisample.SamplesArb, samples,
|
|
|
|
(int)WGL_ARB_pixel_format.AccumRedBitsArb, accum.Red,
|
|
(int)WGL_ARB_pixel_format.AccumGreenBitsArb, accum.Green,
|
|
(int)WGL_ARB_pixel_format.AccumBlueBitsArb, accum.Blue,
|
|
(int)WGL_ARB_pixel_format.AccumAlphaBitsArb, accum.Alpha,
|
|
(int)WGL_ARB_pixel_format.AccumBitsArb, accum.BitsPerPixel, // Spec doesn't mention wether alpha bpp should be included...
|
|
|
|
(int)WGL_ARB_pixel_format.DoubleBufferArb, buffers > 1 ? 1 : 0,
|
|
(int)WGL_ARB_pixel_format.StereoArb, stereo ? 1 : 0,
|
|
0, 0
|
|
};
|
|
|
|
int[] pixel = new int[1], num_formats = new int[1];
|
|
bool success = Wgl.Arb.ChoosePixelFormat(window.DeviceContext, attribs_values, null, 1, pixel, num_formats);
|
|
if (!success || num_formats[0] == 0 || pixel[0] == 0)
|
|
{
|
|
// Try again without an accumulator. Many modern cards cannot accelerate multisampled formats with accumulator buffers.
|
|
int index_of_accum = Array.IndexOf(attribs_values, (int)WGL_ARB_pixel_format.AccumRedBitsArb);
|
|
attribs_values[index_of_accum + 1] = attribs_values[index_of_accum + 3] =
|
|
attribs_values[index_of_accum + 5] = attribs_values[index_of_accum + 7] =
|
|
attribs_values[index_of_accum + 9] = 0;
|
|
Wgl.Arb.ChoosePixelFormat(window.DeviceContext, attribs_values, null, 1, pixel, num_formats);
|
|
}
|
|
if (!success || num_formats[0] == 0 || pixel[0] == 0)
|
|
{
|
|
Debug.WriteLine("failed (no suitable pixel format).");
|
|
return null;
|
|
}
|
|
|
|
// Find out what we really got as a format:
|
|
success = Wgl.Arb.GetPixelFormatAttrib(window.DeviceContext, pixel[0], 0, attribs.Length - 1, attribs, values);
|
|
if (!success)
|
|
{
|
|
Debug.WriteLine("failed (pixel format attributes could not be determined).");
|
|
return null;
|
|
}
|
|
|
|
GraphicsMode mode = new GraphicsMode(new IntPtr(pixel[0]),
|
|
new ColorDepth(values[1], values[2], values[3], values[4]),
|
|
values[6],
|
|
values[7],
|
|
values[8] != 0 ? values[9] : 0,
|
|
new ColorDepth(values[10], values[11], values[12], values[13]),
|
|
values[15] == 1 ? 2 : 1,
|
|
values[16] == 1 ? true : false);
|
|
|
|
Debug.WriteLine("success!");
|
|
return mode;
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
|
|
#endregion
|
|
}
|
|
}
|
|
|