mirror of
https://gitee.com/csharpui/CPF.git
synced 2025-04-05 17:37:51 +08:00
383 lines
18 KiB
C#
383 lines
18 KiB
C#
using System;
|
||
using System.Collections.Generic;
|
||
using System.Runtime.InteropServices;
|
||
using static CPF.Windows.UnmanagedMethods;
|
||
|
||
namespace CPF.Windows.OpenGL
|
||
{
|
||
public class Wgl
|
||
{
|
||
private const string opengl32 = "opengl32.dll";
|
||
|
||
public const int NONE = 0;
|
||
public const int FALSE = 0;
|
||
public const int TRUE = 1;
|
||
|
||
public const int GL_VENDOR = 0x1F00;
|
||
public const int GL_VERSION = 0x1F02;
|
||
public const int GL_RENDERER = 0x1F01;
|
||
public const int GL_EXTENSIONS = 0x1F03;
|
||
public const int GL_TEXTURE_2D = 0x0DE1;
|
||
public const int GL_UNSIGNED_BYTE = 0x1401;
|
||
public const int GL_RGBA = 0x1908;
|
||
public const int GL_RGBA8 = 0x8058;
|
||
|
||
public const int WGL_CONTEXT_MAJOR_VERSION_ARB = 0x2091;
|
||
public const int WGL_CONTEXT_MINOR_VERSION_ARB = 0x2092;
|
||
public const int WGL_CONTEXT_LAYER_PLANE_ARB = 0x2093;
|
||
public const int WGL_CONTEXT_FLAGS_ARB = 0x2094;
|
||
public const int WGL_CONTEXT_PROFILE_MASK_ARB = 0x9126;
|
||
|
||
public const int WGL_NUMBER_PIXEL_FORMATS_ARB = 0x2000;
|
||
public const int WGL_DRAW_TO_WINDOW_ARB = 0x2001;
|
||
public const int WGL_DRAW_TO_BITMAP_ARB = 0x2002;
|
||
public const int WGL_ACCELERATION_ARB = 0x2003;
|
||
public const int WGL_NEED_PALETTE_ARB = 0x2004;
|
||
public const int WGL_NEED_SYSTEM_PALETTE_ARB = 0x2005;
|
||
public const int WGL_SWAP_LAYER_BUFFERS_ARB = 0x2006;
|
||
public const int WGL_SWAP_METHOD_ARB = 0x2007;
|
||
public const int WGL_NUMBER_OVERLAYS_ARB = 0x2008;
|
||
public const int WGL_NUMBER_UNDERLAYS_ARB = 0x2009;
|
||
public const int WGL_TRANSPARENT_ARB = 0x200A;
|
||
public const int WGL_TRANSPARENT_RED_VALUE_ARB = 0x2037;
|
||
public const int WGL_TRANSPARENT_GREEN_VALUE_ARB = 0x2038;
|
||
public const int WGL_TRANSPARENT_BLUE_VALUE_ARB = 0x2039;
|
||
public const int WGL_TRANSPARENT_ALPHA_VALUE_ARB = 0x203A;
|
||
public const int WGL_TRANSPARENT_INDEX_VALUE_ARB = 0x203B;
|
||
public const int WGL_SHARE_DEPTH_ARB = 0x200C;
|
||
public const int WGL_SHARE_STENCIL_ARB = 0x200D;
|
||
public const int WGL_SHARE_ACCUM_ARB = 0x200E;
|
||
public const int WGL_SUPPORT_GDI_ARB = 0x200F;
|
||
public const int WGL_SUPPORT_OPENGL_ARB = 0x2010;
|
||
public const int WGL_DOUBLE_BUFFER_ARB = 0x2011;
|
||
public const int WGL_STEREO_ARB = 0x2012;
|
||
public const int WGL_PIXEL_TYPE_ARB = 0x2013;
|
||
public const int WGL_COLOR_BITS_ARB = 0x2014;
|
||
public const int WGL_RED_BITS_ARB = 0x2015;
|
||
public const int WGL_RED_SHIFT_ARB = 0x2016;
|
||
public const int WGL_GREEN_BITS_ARB = 0x2017;
|
||
public const int WGL_GREEN_SHIFT_ARB = 0x2018;
|
||
public const int WGL_BLUE_BITS_ARB = 0x2019;
|
||
public const int WGL_BLUE_SHIFT_ARB = 0x201A;
|
||
public const int WGL_ALPHA_BITS_ARB = 0x201B;
|
||
public const int WGL_ALPHA_SHIFT_ARB = 0x201C;
|
||
public const int WGL_ACCUM_BITS_ARB = 0x201D;
|
||
public const int WGL_ACCUM_RED_BITS_ARB = 0x201E;
|
||
public const int WGL_ACCUM_GREEN_BITS_ARB = 0x201F;
|
||
public const int WGL_ACCUM_BLUE_BITS_ARB = 0x2020;
|
||
public const int WGL_ACCUM_ALPHA_BITS_ARB = 0x2021;
|
||
public const int WGL_DEPTH_BITS_ARB = 0x2022;
|
||
public const int WGL_STENCIL_BITS_ARB = 0x2023;
|
||
public const int WGL_AUX_BUFFERS_ARB = 0x2024;
|
||
public const int WGL_NO_ACCELERATION_ARB = 0x2025;
|
||
public const int WGL_GENERIC_ACCELERATION_ARB = 0x2026;
|
||
public const int WGL_FULL_ACCELERATION_ARB = 0x2027;
|
||
public const int WGL_SWAP_EXCHANGE_ARB = 0x2028;
|
||
public const int WGL_SWAP_COPY_ARB = 0x2029;
|
||
public const int WGL_SWAP_UNDEFINED_ARB = 0x202A;
|
||
public const int WGL_TYPE_RGBA_ARB = 0x202B;
|
||
public const int WGL_TYPE_COLORINDEX_ARB = 0x202C;
|
||
public const int WGL_SAMPLE_BUFFERS_ARB = 0x2041;
|
||
public const int WGL_SAMPLES_ARB = 0x2042;
|
||
|
||
static Wgl()
|
||
{
|
||
try
|
||
{
|
||
|
||
// save the current GL context
|
||
var prevDC = Wgl.wglGetCurrentDC();
|
||
var prevGLRC = Wgl.wglGetCurrentContext();
|
||
|
||
// get the the dummy window bounds
|
||
var windowRect = new RECT { left = 0, right = 8, top = 0, bottom = 8 };
|
||
AdjustWindowRectEx(ref windowRect, (uint)WindowStyles.WS_SYSMENU, false, (uint)WindowStyles.WS_EX_CLIENTEDGE);
|
||
|
||
//// register the dummy window class
|
||
//var wc = new WNDCLASS
|
||
//{
|
||
// style = (int)(ClassStyles.CS_HREDRAW | ClassStyles.CS_VREDRAW | ClassStyles.CS_OWNDC),
|
||
// lpfnWndProc = DefWindowProc,
|
||
// cbClsExtra = 0,
|
||
// cbWndExtra = 0,
|
||
// hInstance = GetModuleHandle(null),
|
||
// hCursor = WindowImpl.DefaultCursor,
|
||
// hIcon = LoadIcon(IntPtr.Zero, (IntPtr)32517),
|
||
// hbrBackground = IntPtr.Zero,
|
||
// lpszMenuName = null,
|
||
// lpszClassName = "DummyClass"
|
||
//};
|
||
//if (RegisterClass(ref wc) == 0)
|
||
//{
|
||
// throw new Exception("Could not register dummy class.");
|
||
//}
|
||
WNDCLASSEX wc = new WNDCLASSEX();
|
||
wc.cbSize = Marshal.SizeOf(typeof(WNDCLASSEX));
|
||
//wc.style = (int)ClassStyles.CS_DBLCLKS;
|
||
wc.lpfnWndProc = DefWindowProc;
|
||
wc.hInstance = GetModuleHandle(null);
|
||
wc.hbrBackground = (IntPtr)6;
|
||
wc.lpszClassName = "DummyClass";
|
||
wc.cbClsExtra = 0;
|
||
wc.cbWndExtra = 0;
|
||
wc.hIcon = IntPtr.Zero;
|
||
wc.hCursor = WindowImpl.DefaultCursor;
|
||
wc.lpszMenuName = "";
|
||
// 注册窗口类
|
||
RegisterClassEx(ref wc);
|
||
|
||
// create the dummy window
|
||
var dummyWND = CreateWindowEx(
|
||
(int)WindowStyles.WS_EX_CLIENTEDGE,
|
||
"DummyClass",
|
||
"DummyWindow",
|
||
(uint)(WindowStyles.WS_CLIPSIBLINGS | WindowStyles.WS_CLIPCHILDREN | WindowStyles.WS_SYSMENU),
|
||
0, 0,
|
||
windowRect.right - windowRect.left, windowRect.bottom - windowRect.top,
|
||
IntPtr.Zero, IntPtr.Zero, GetModuleHandle(null), IntPtr.Zero);
|
||
if (dummyWND == IntPtr.Zero)
|
||
{
|
||
UnregisterClass("DummyClass", GetModuleHandle(null));
|
||
return;
|
||
}
|
||
|
||
// get the dummy DC
|
||
var dummyDC = UnmanagedMethods.GetDC(dummyWND);
|
||
|
||
// get the dummy pixel format
|
||
var dummyPFD = new PIXELFORMATDESCRIPTOR();
|
||
dummyPFD.nSize = (ushort)Marshal.SizeOf(dummyPFD);
|
||
dummyPFD.nVersion = 1;
|
||
dummyPFD.dwFlags = Wgl.PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_SUPPORT_COMPOSITION;
|
||
dummyPFD.iPixelType = PFD_TYPE_RGBA;
|
||
dummyPFD.cColorBits = 24;
|
||
dummyPFD.cDepthBits = 32;
|
||
dummyPFD.cStencilBits = 8;
|
||
dummyPFD.cAlphaBits = 8;
|
||
dummyPFD.iLayerType = PFD_MAIN_PLANE;
|
||
var dummyFormat = ChoosePixelFormat(dummyDC, ref dummyPFD);
|
||
var r = SetPixelFormat(dummyDC, dummyFormat, ref dummyPFD);
|
||
|
||
// get the dummy GL context
|
||
var dummyGLRC = Wgl.wglCreateContext(dummyDC);
|
||
if (dummyGLRC == IntPtr.Zero)
|
||
{
|
||
//throw new Exception("Could not create dummy GL context.");
|
||
System.Diagnostics.Debug.WriteLine("创建OpenGL上下文失败，请尝试设置当前程序以集显方式启动");
|
||
UnmanagedMethods.ReleaseDC(IntPtr.Zero, dummyDC);
|
||
return;
|
||
}
|
||
Wgl.wglMakeCurrent(dummyDC, dummyGLRC);
|
||
|
||
VersionString = Wgl.GetString(Wgl.GL_VERSION);
|
||
//var RENDERER = Wgl.GetString(GL_RENDERER);
|
||
//var VENDOR = GetString(GL_VENDOR);
|
||
//var EXTENSIONS = GetString(GL_EXTENSIONS);
|
||
|
||
// get the extension methods using the dummy context
|
||
wglGetExtensionsStringARB = Wgl.wglGetProcAddress<wglGetExtensionsStringARBDelegate>("wglGetExtensionsStringARB");
|
||
wglChoosePixelFormatARB = Wgl.wglGetProcAddress<wglChoosePixelFormatARBDelegate>("wglChoosePixelFormatARB");
|
||
wglCreatePbufferARB = Wgl.wglGetProcAddress<wglCreatePbufferARBDelegate>("wglCreatePbufferARB");
|
||
wglDestroyPbufferARB = Wgl.wglGetProcAddress<wglDestroyPbufferARBDelegate>("wglDestroyPbufferARB");
|
||
wglGetPbufferDCARB = Wgl.wglGetProcAddress<wglGetPbufferDCARBDelegate>("wglGetPbufferDCARB");
|
||
wglReleasePbufferDCARB = Wgl.wglGetProcAddress<wglReleasePbufferDCARBDelegate>("wglReleasePbufferDCARB");
|
||
wglSwapIntervalEXT = Wgl.wglGetProcAddress<wglSwapIntervalEXTDelegate>("wglSwapIntervalEXT");
|
||
WglCreateContextAttribsArb = Wgl.wglGetProcAddress<WglCreateContextAttribsARBDelegate>("wglCreateContextAttribsARB");
|
||
GlDebugMessageCallback = wglGetProcAddress<GlDebugMessageCallbackDelegate>("glDebugMessageCallback");
|
||
|
||
// destroy the dummy GL context
|
||
Wgl.wglMakeCurrent(dummyDC, IntPtr.Zero);
|
||
Wgl.wglDeleteContext(dummyGLRC);
|
||
UnmanagedMethods.ReleaseDC(IntPtr.Zero, dummyDC);
|
||
|
||
// destroy the dummy window
|
||
DestroyWindow(dummyWND);
|
||
UnregisterClass("DummyClass", GetModuleHandle(null));
|
||
|
||
// reset the initial GL context
|
||
Wgl.wglMakeCurrent(prevDC, prevGLRC);
|
||
}
|
||
catch (Exception e)
|
||
{
|
||
System.Diagnostics.Debug.WriteLine("OpenGL初始化出错:" + e);
|
||
Console.WriteLine("OpenGL初始化出错:" + e);
|
||
}
|
||
}
|
||
|
||
public static string VersionString { get; }
|
||
|
||
//public static bool HasExtension(IntPtr dc, string ext)
|
||
//{
|
||
// if (wglGetExtensionsStringARB == null)
|
||
// {
|
||
// return false;
|
||
// }
|
||
|
||
// if (ext == "WGL_ARB_extensions_string")
|
||
// {
|
||
// return true;
|
||
// }
|
||
|
||
// return Array.IndexOf(GetExtensionsARB(dc), ext) != -1;
|
||
//}
|
||
|
||
//public static string GetExtensionsStringARB(IntPtr dc)
|
||
//{
|
||
// return Marshal.PtrToStringAnsi(wglGetExtensionsStringARB(dc));
|
||
//}
|
||
|
||
//public static string[] GetExtensionsARB(IntPtr dc)
|
||
//{
|
||
// var str = GetExtensionsStringARB(dc);
|
||
// if (string.IsNullOrEmpty(str))
|
||
// {
|
||
// return new string[0];
|
||
// }
|
||
// return str.Split(' ');
|
||
//}
|
||
|
||
private static readonly DebugCallbackDelegate _debugCallback = DebugCallback;
|
||
private static void DebugCallback(int source, int type, int id, int severity, int len, IntPtr message, IntPtr userparam)
|
||
{
|
||
var err = Marshal.PtrToStringAnsi(message, len);
|
||
Console.Error.WriteLine(err);
|
||
System.Diagnostics.Debug.WriteLine(err);
|
||
}
|
||
/// <summary>
|
||
/// 注册debug消息,委托要自己保存，不要直接用临时的Lambda
|
||
/// </summary>
|
||
public static void GlDebug(DebugCallbackDelegate _debugCallback)
|
||
{
|
||
GlDebugMessageCallback(Marshal.GetFunctionPointerForDelegate(_debugCallback), IntPtr.Zero);
|
||
}
|
||
|
||
public static readonly wglGetExtensionsStringARBDelegate wglGetExtensionsStringARB;
|
||
public static readonly wglChoosePixelFormatARBDelegate wglChoosePixelFormatARB;
|
||
public static readonly wglCreatePbufferARBDelegate wglCreatePbufferARB;
|
||
public static readonly wglDestroyPbufferARBDelegate wglDestroyPbufferARB;
|
||
public static readonly wglGetPbufferDCARBDelegate wglGetPbufferDCARB;
|
||
public static readonly wglReleasePbufferDCARBDelegate wglReleasePbufferDCARB;
|
||
public static readonly wglSwapIntervalEXTDelegate wglSwapIntervalEXT;
|
||
public static readonly WglCreateContextAttribsARBDelegate WglCreateContextAttribsArb;
|
||
|
||
|
||
public delegate void GlDebugMessageCallbackDelegate(IntPtr callback, IntPtr userParam);
|
||
|
||
public static GlDebugMessageCallbackDelegate GlDebugMessageCallback;
|
||
|
||
public delegate void DebugCallbackDelegate(int source, int type, int id, int severity, int len, IntPtr message,
|
||
IntPtr userParam);
|
||
[DllImport(opengl32, CallingConvention = CallingConvention.Winapi)]
|
||
public static extern IntPtr wglGetCurrentDC();
|
||
|
||
[DllImport(opengl32, CallingConvention = CallingConvention.Winapi)]
|
||
public static extern IntPtr wglGetCurrentContext();
|
||
|
||
[DllImport(opengl32, CallingConvention = CallingConvention.Winapi)]
|
||
public static extern IntPtr wglCreateContext(IntPtr hDC);
|
||
|
||
[DllImport(opengl32, CallingConvention = CallingConvention.Winapi)]
|
||
public static extern bool wglMakeCurrent(IntPtr hDC, IntPtr hRC);
|
||
|
||
[DllImport(opengl32, CallingConvention = CallingConvention.Winapi)]
|
||
public static extern bool wglDeleteContext(IntPtr hRC);
|
||
|
||
[DllImport(opengl32, CallingConvention = CallingConvention.Winapi)]
|
||
public static extern IntPtr wglGetProcAddress([MarshalAs(UnmanagedType.LPStr)] string lpszProc);
|
||
|
||
[DllImport(opengl32, SetLastError = true)]
|
||
public static extern void glClearColor(float red, float green, float blue, float alpha);
|
||
public static T wglGetProcAddress<T>(string lpszProc)
|
||
{
|
||
var ptr = wglGetProcAddress(lpszProc);
|
||
if (ptr == IntPtr.Zero)
|
||
{
|
||
return default(T);
|
||
}
|
||
return (T)(object)Marshal.GetDelegateForFunctionPointer(ptr, typeof(T));
|
||
}
|
||
|
||
[DllImport(opengl32, CallingConvention = CallingConvention.Winapi)]
|
||
public static extern IntPtr glGetString(uint value);
|
||
|
||
public static string GetString(uint value)
|
||
{
|
||
var intPtr = glGetString(value);
|
||
return Marshal.PtrToStringAnsi(intPtr);
|
||
}
|
||
|
||
[DllImport(opengl32, CallingConvention = CallingConvention.Winapi)]
|
||
public static extern void glGetIntegerv(int name, out int rv);
|
||
|
||
[DllImport(opengl32, CallingConvention = CallingConvention.Winapi)]
|
||
public static extern void glGenTextures(int n, uint[] textures);
|
||
|
||
[DllImport(opengl32, CallingConvention = CallingConvention.Winapi)]
|
||
public static extern void glDeleteTextures(int n, uint[] textures);
|
||
|
||
[DllImport(opengl32, CallingConvention = CallingConvention.Winapi)]
|
||
public static extern void glBindTexture(uint target, uint texture);
|
||
|
||
[DllImport(opengl32, CallingConvention = CallingConvention.Winapi)]
|
||
public static extern void glTexImage2D(uint target, int level, int internalformat, int width, int height, int border, uint format, uint type, IntPtr pixels);
|
||
|
||
|
||
|
||
private const string gdi32 = "gdi32.dll";
|
||
|
||
public const byte PFD_TYPE_RGBA = 0;
|
||
|
||
public const byte PFD_MAIN_PLANE = 0;
|
||
|
||
public const uint PFD_DOUBLEBUFFER = 0x00000001;
|
||
public const uint PFD_DRAW_TO_WINDOW = 0x00000004;
|
||
public const uint PFD_SUPPORT_OPENGL = 0x00000020;
|
||
public const uint PFD_SUPPORT_COMPOSITION = 0x00008000;
|
||
public const uint PFD_DRAW_TO_BITMAP = 8u;
|
||
public const uint PFD_SUPPORT_GDI = 16u;
|
||
|
||
[DllImport(gdi32, CallingConvention = CallingConvention.Winapi, SetLastError = true)]
|
||
[return: MarshalAs(UnmanagedType.Bool)]
|
||
public static extern bool SetPixelFormat(IntPtr hdc, int iPixelFormat, [In] ref PIXELFORMATDESCRIPTOR ppfd);
|
||
|
||
[DllImport(gdi32, CallingConvention = CallingConvention.Winapi, SetLastError = true)]
|
||
public static extern int ChoosePixelFormat(IntPtr hdc, [In] ref PIXELFORMATDESCRIPTOR ppfd);
|
||
|
||
[DllImport(gdi32, CallingConvention = CallingConvention.Winapi, SetLastError = true)]
|
||
[return: MarshalAs(UnmanagedType.Bool)]
|
||
public static extern bool SwapBuffers(IntPtr hdc);
|
||
}
|
||
|
||
[UnmanagedFunctionPointer(CallingConvention.Winapi)]
|
||
public delegate IntPtr wglGetExtensionsStringARBDelegate(IntPtr dc);
|
||
|
||
[UnmanagedFunctionPointer(CallingConvention.Winapi)]
|
||
[return: MarshalAs(UnmanagedType.Bool)]
|
||
public delegate bool wglChoosePixelFormatARBDelegate(
|
||
IntPtr dc,
|
||
[In] int[] attribIList,
|
||
[In] float[] attribFList,
|
||
uint maxFormats,
|
||
[Out] int[] pixelFormats,
|
||
out uint numFormats);
|
||
|
||
[UnmanagedFunctionPointer(CallingConvention.Winapi)]
|
||
public delegate IntPtr wglCreatePbufferARBDelegate(IntPtr dc, int pixelFormat, int width, int height, [In] int[] attribList);
|
||
|
||
[UnmanagedFunctionPointer(CallingConvention.Winapi)]
|
||
[return: MarshalAs(UnmanagedType.Bool)]
|
||
public delegate bool wglDestroyPbufferARBDelegate(IntPtr pbuffer);
|
||
|
||
[UnmanagedFunctionPointer(CallingConvention.Winapi)]
|
||
public delegate IntPtr wglGetPbufferDCARBDelegate(IntPtr pbuffer);
|
||
|
||
[UnmanagedFunctionPointer(CallingConvention.Winapi)]
|
||
public delegate int wglReleasePbufferDCARBDelegate(IntPtr pbuffer, IntPtr dc);
|
||
|
||
[UnmanagedFunctionPointer(CallingConvention.Winapi)]
|
||
[return: MarshalAs(UnmanagedType.Bool)]
|
||
public delegate bool wglSwapIntervalEXTDelegate(int interval);
|
||
|
||
public delegate IntPtr WglCreateContextAttribsARBDelegate(IntPtr hDC, IntPtr hShareContext, int[] attribList);
|
||
}
|