public static void Init(IntPtr hwnd)
{
var dc = GetDC(hwnd);
DC = dc;
var pfd = new PixelFormatDescriptor(null);
var pfn = ChoosePixelFormat(dc, ref pfd);
DescribePixelFormat(dc, pfn, (short)Marshal.SizeOf(typeof(PixelFormatDescriptor)), ref pfd);
SetPixelFormat(dc, pfn, ref pfd);
GLContext = CreateContext(dc);
MakeCurrent(dc, GLContext);
GenVertexArray =
(glGenVertexArray)
Marshal.GetDelegateForFunctionPointer(wglGetProcAddress("glGenVertexArrays"), typeof(glGenVertexArray));
BindVertexArray =
(glBindVertexArray)
Marshal.GetDelegateForFunctionPointer(wglGetProcAddress("glBindVertexArray"), typeof(glBindVertexArray));
GenBuffer =
(glGenBuffers)
Marshal.GetDelegateForFunctionPointer(wglGetProcAddress("glGenBuffers"), typeof(glGenBuffers));
BindBuffer =
(glBindBuffer)
Marshal.GetDelegateForFunctionPointer(wglGetProcAddress("glBindBuffer"), typeof(glBindBuffer));
BufferData =
(glBufferData)
Marshal.GetDelegateForFunctionPointer(wglGetProcAddress("glBufferData"), typeof(glBufferData));
VertexAttribPointer =
(glVertexAttribPointer)
Marshal.GetDelegateForFunctionPointer(wglGetProcAddress("glVertexAttribPointer"),
typeof(glVertexAttribPointer));
EnableVertexAttribArray =
(glEnableVertexAttribArray)
Marshal.GetDelegateForFunctionPointer(wglGetProcAddress("glEnableVertexAttribArray"),
typeof(glEnableVertexAttribArray));
UniformMatrix4 =
(glUniformMatrix4fv)
Marshal.GetDelegateForFunctionPointer(wglGetProcAddress("glUniformMatrix4fv"),
typeof(glUniformMatrix4fv));
CreateShader =
(glCreateShader)
Marshal.GetDelegateForFunctionPointer(wglGetProcAddress("glCreateShader"), typeof(glCreateShader));
CreateProgram =
(glCreateProgram)
Marshal.GetDelegateForFunctionPointer(wglGetProcAddress("glCreateProgram"), typeof(glCreateProgram));
CompileShader =
(glPassShader)
Marshal.GetDelegateForFunctionPointer(wglGetProcAddress("glCompileShader"), typeof(glPassShader));
DeleteShader =
(glPassShader)
Marshal.GetDelegateForFunctionPointer(wglGetProcAddress("glDeleteShader"), typeof(glPassShader));
LinkProgram =
(glPassShader)
Marshal.GetDelegateForFunctionPointer(wglGetProcAddress("glLinkProgram"), typeof(glPassShader));
UseProgram =
(glPassShader)
Marshal.GetDelegateForFunctionPointer(wglGetProcAddress("glUseProgram"), typeof(glPassShader));
DeleteProgram =
(glPassShader)
Marshal.GetDelegateForFunctionPointer(wglGetProcAddress("glDeleteProgram"), typeof(glPassShader));
ShaderSource =
(glShaderSource)
Marshal.GetDelegateForFunctionPointer(wglGetProcAddress("glShaderSource"), typeof(glShaderSource));
AttachShader =
(glAttachShader)
Marshal.GetDelegateForFunctionPointer(wglGetProcAddress("glAttachShader"), typeof(glAttachShader));
DetachShader =
(glAttachShader)
Marshal.GetDelegateForFunctionPointer(wglGetProcAddress("glDetachShader"), typeof(glAttachShader));
GetUniformLocation =
(glGetUniformLocation)
Marshal.GetDelegateForFunctionPointer(wglGetProcAddress("glGetUniformLocation"),
typeof(glGetUniformLocation));
}
private static extern bool SetPixelFormat(IntPtr dc, int format, ref PixelFormatDescriptor pfd);
private static extern int ChoosePixelFormat(IntPtr dc, ref PixelFormatDescriptor pfd);
private static extern int DescribePixelFormat(IntPtr deviceContext, int pixel, int pfdSize,
ref PixelFormatDescriptor pixelFormat);