/// <summary>
/// All application initialization is performed here, before the main loop thread is executed and the render panel is displayed for the first time.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void RenderForm_Load(object sender, EventArgs e)
{
OpenGL.PIXELFORMATDESCRIPTOR pixelformatdescriptor = new OpenGL.PIXELFORMATDESCRIPTOR();
pixelformatdescriptor.Init();
dc = OpenGL.GetDC(renderPanel.Handle);
int pixelFormat = OpenGL.ChoosePixelFormat(dc, ref pixelformatdescriptor);
if (!OpenGL.SetPixelFormat(dc, pixelFormat, ref pixelformatdescriptor))
{
throw new System.ComponentModel.Win32Exception(Marshal.GetLastWin32Error());
}
if ((hglrc = OpenGL.wglCreateContext(dc)) == IntPtr.Zero)
{
throw new System.ComponentModel.Win32Exception(Marshal.GetLastWin32Error());
}
if (!OpenGL.wglMakeCurrent(dc, hglrc))
{
OpenGL.wglDeleteContext(hglrc);
MessageBox.Show("Failed to init OpenGL context\nMake sure you have an OpenGL 2.0 compatible graphics card with the latest drivers installed!\nAlso verify if the pipeline config file exists.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
Environment.Exit(0);
}
if (!app.init())
{
MessageBox.Show("Failed to init application\nMake sure you have an OpenGL 2.0 compatible graphics card with the latest drivers installed!\nAlso verify if the pipeline config file exists.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
h3d.release();
Environment.Exit(0);
}
app.resize(renderPanel.Size.Width, renderPanel.Size.Height);
}
/// <summary>
/// Создает контекст воспроизведения opengl
/// </summary>
protected virtual void CreateOpenGLContext()
{
OpenGL.wglMakeCurrent(IntPtr.Zero, IntPtr.Zero);
hDC = OpenGL.GetDC(this.Handle);
if (hDC == IntPtr.Zero)
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
OpenGL.PIXELFORMATDESCRIPTOR pfd = new OpenGL.PIXELFORMATDESCRIPTOR();
pfd.Initialize();
pfd.dwFlags = OpenGL.PFD_DRAW_TO_WINDOW
| OpenGL.PFD_SUPPORT_OPENGL
| OpenGL.PFD_DOUBLEBUFFER;
int npf = OpenGL.ChoosePixelFormat(hDC, ref pfd);
OpenGL.SetPixelFormat(hDC, npf, ref pfd);
hRC = OpenGL.wglCreateContext(hDC);
if (hRC == IntPtr.Zero)
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
OpenGL.wglMakeCurrent(hDC, hRC);
OpenGL.glClearColor(0.5f, 0.5f, 0.75f, 1.0f);
//OpenGL.glClearColor( 1f, 1f, 1f, 1.0f );
OpenGL.glPolygonMode(OpenGL.GL_FRONT_AND_BACK, OpenGL.GL_LINE);
OpenGL.glEnable(OpenGL.GL_DEPTH_TEST);
}
/// <summary>
/// Setup OpenGL.
/// </summary>
public void SetOpenGL()
{
// If there is no rendering context or device context.
if (_deviceContext == IntPtr.Zero || _renderingContext == IntPtr.Zero)
{
// Make current.
OpenGL.wglMakeCurrent(IntPtr.Zero, IntPtr.Zero);
// Create a buffer descriptor.
OpenGL.PIXELFORMATDESCRIPTOR pfd = new OpenGL.PIXELFORMATDESCRIPTOR();
pfd.nSize = (short)Marshal.SizeOf(pfd);
pfd.nVersion = 1;
pfd.dwFlags = OpenGL.PFD_DRAW_TO_WINDOW | OpenGL.PFD_SUPPORT_OPENGL | OpenGL.PFD_DOUBLEBUFFER;
pfd.iPixelType = OpenGL.PFD_TYPE_RGBA;
pfd.cColorBits = 24;
pfd.cRedBits = 0;
pfd.cRedShift = 0;
pfd.cGreenBits = 0;
pfd.cGreenShift = 0;
pfd.cBlueBits = 0;
pfd.cBlueShift = 0;
pfd.cAlphaBits = 0;
pfd.cAlphaShift = 0;
pfd.cAccumBits = 0;
pfd.cAccumRedBits = 0;
pfd.cAccumGreenBits = 0;
pfd.cAccumBlueBits = 0;
pfd.cAccumAlphaBits = 0;
pfd.cDepthBits = 0;
pfd.cStencilBits = 0;
pfd.cAuxBuffers = 0;
pfd.iLayerType = OpenGL.PFD_MAIN_PLANE;
pfd.bReserved = 0;
pfd.dwLayerMask = 0;
pfd.dwVisibleMask = 0;
pfd.dwDamageMask = 0;
// Grab the device context.
_deviceContext = OpenGL.GetDC(_control.Handle);
if (_deviceContext == IntPtr.Zero)
{
throw new Exception("An error occured while attempting to allocate device context for OpenGL canvas.");
}
// Choose our pixel format.
int pixelFormat = OpenGL.ChoosePixelFormat(_deviceContext, ref pfd);
if (pixelFormat == 0)
{
throw new Exception("An error occured while attempting to choose pixel format for OpenGL canvas.");
}
// Set our pixel format.
if (OpenGL.SetPixelFormat(_deviceContext, pixelFormat, ref pfd) == 0)
{
throw new Exception("An error occured while attempting to set pixel format for OpenGL canvas.");
}
// Grab our rendering context.
_renderingContext = OpenGL.wglCreateContext(_deviceContext);
if (_renderingContext == IntPtr.Zero)
{
throw new Exception("An error occured while attempting to allocate rendering context for OpenGL canvas (win32 error code: " + Marshal.GetLastWin32Error() + ").");
}
}
// If the current context is not the rendering context.
if (_currentRenderingContext != _renderingContext)
{
if (OpenGL.wglMakeCurrent(_deviceContext, _renderingContext) == 0)
{
throw new Exception("An error occured while attempting to set current OpenGL canvas (" + Marshal.GetLastWin32Error() + ").");
}
// Make this context our current one.
_currentRenderingContext = _renderingContext;
}
}
/// <summary>
/// Setup OpenGL.
/// </summary>
public void SetOpenGL()
{
// If there is no rendering context or device context.
if (_deviceContext == IntPtr.Zero || _renderingContext == IntPtr.Zero)
{
// Make current.
OpenGL.wglMakeCurrent(IntPtr.Zero, IntPtr.Zero);
// Create a buffer descriptor.
OpenGL.PIXELFORMATDESCRIPTOR pfd = new OpenGL.PIXELFORMATDESCRIPTOR();
pfd.nSize = (short)Marshal.SizeOf(pfd);
pfd.nVersion = 1;
pfd.dwFlags = OpenGL.PFD_DRAW_TO_WINDOW | OpenGL.PFD_SUPPORT_OPENGL | OpenGL.PFD_DOUBLEBUFFER;
pfd.iPixelType = OpenGL.PFD_TYPE_RGBA;
pfd.cColorBits = 24;
pfd.cRedBits = 0;
pfd.cRedShift = 0;
pfd.cGreenBits = 0;
pfd.cGreenShift = 0;
pfd.cBlueBits = 0;
pfd.cBlueShift = 0;
pfd.cAlphaBits = 0;
pfd.cAlphaShift = 0;
pfd.cAccumBits = 0;
pfd.cAccumRedBits = 0;
pfd.cAccumGreenBits = 0;
pfd.cAccumBlueBits = 0;
pfd.cAccumAlphaBits = 0;
pfd.cDepthBits = 0;
pfd.cStencilBits = 0;
pfd.cAuxBuffers = 0;
pfd.iLayerType = OpenGL.PFD_MAIN_PLANE;
pfd.bReserved = 0;
pfd.dwLayerMask = 0;
pfd.dwVisibleMask = 0;
pfd.dwDamageMask = 0;
// Grab the device context.
_deviceContext = OpenGL.GetDC(_control.Handle);
if (_deviceContext == IntPtr.Zero)
throw new Exception("An error occured while attempting to allocate device context for OpenGL canvas.");
// Choose our pixel format.
int pixelFormat = OpenGL.ChoosePixelFormat(_deviceContext, ref pfd);
if (pixelFormat == 0)
throw new Exception("An error occured while attempting to choose pixel format for OpenGL canvas.");
// Set our pixel format.
if (OpenGL.SetPixelFormat(_deviceContext, pixelFormat, ref pfd) == 0)
throw new Exception("An error occured while attempting to set pixel format for OpenGL canvas.");
// Grab our rendering context.
_renderingContext = OpenGL.wglCreateContext(_deviceContext);
if (_renderingContext == IntPtr.Zero)
throw new Exception("An error occured while attempting to allocate rendering context for OpenGL canvas (win32 error code: " + Marshal.GetLastWin32Error() + ").");
}
// If the current context is not the rendering context.
if (_currentRenderingContext != _renderingContext)
{
if (OpenGL.wglMakeCurrent(_deviceContext, _renderingContext) == 0)
throw new Exception("An error occured while attempting to set current OpenGL canvas (" + Marshal.GetLastWin32Error() + ").");
// Make this context our current one.
_currentRenderingContext = _renderingContext;
}
}
