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/*
* Copyright 2010 Inalogic Inc.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version 3, as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranties of
* MERCHANTABILITY, SATISFACTORY QUALITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the applicable version of the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of both the GNU Lesser General Public
* License version 3 along with this program. If not, see
* <http://www.gnu.org/licenses/>
*
* Authored by: Jay Taoko <jaytaoko@inalogic.com>
*
*/
#include "NuxCore/NuxCore.h"
#include "GLWindowManager.h"
namespace nux
{
#if defined(NUX_OS_WINDOWS)
const TCHAR *WINDOW_CLASS_NAME = TEXT ("InalogicWindowClass");
HINSTANCE gInstance = 0;
#endif
DisplayAccessController *DisplayAccessController::m_pInstance = 0;
DisplayAccessController::DisplayAccessController()
{
#if defined(NUX_OS_WINDOWS)
// Register Windows Class
// Get hInstance of current application.
if (gInstance == 0)
hInstance = GetModuleHandle (NULL);
else
hInstance = gInstance;
WinClass.cbSize = sizeof (WNDCLASSEX);
// CS_CLASSDC Specifies that one device context is shared between all windows created with this class.
// CS_DBLCLKS This is needed if you want to be able to detect double mouse clicks made on the window.
// CS_HREDRAW The window is redrawn if there is a change in the window's width or if the window is moved horizontally.
// CS_NOCLOSE Disables the close option on the window menu.
// CS_OWNDC A unique device context is created for each window created. This is the opposite to CS_CLASSDC.
// CS_PARENTDC This sets the clipping rectangle of the child window to that of the parent window. This allows the child window to be able to draw on the parent window.
// CS_VREDRAW The window is redrawn if there is a change in the window's height or if the window is moved vertically.
WinClass.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC | CS_DBLCLKS; // Redraw On Size, And Own DC For Window.
WinClass.lpfnWndProc = (WNDPROC) WndProcManager; // WndProc Handles Messages
WinClass.cbClsExtra = 0; // No Extra Window Data
WinClass.cbWndExtra = 0; // No Extra Window Data
WinClass.hInstance = hInstance; // Set The Instance
WinClass.hIcon = LoadIcon (hInstance, "IDI_INALOGIC"); //LoadIcon(NULL, IDI_WINLOGO); // Load The Default Icon
WinClass.hCursor = LoadCursor (NULL, IDC_ARROW); // Class cursor: Load The Arrow Pointer
WinClass.hbrBackground = NULL; //(HBRUSH)GetStockObject(BLACK_BRUSH); // No Background Required For GL
WinClass.lpszMenuName = NULL; // We Don't Want A Menu
WinClass.lpszClassName = WINDOW_CLASS_NAME; //gClassName; // Set The Class Name
WinClass.hIconSm = LoadIcon (hInstance, "IDI_INALOGIC");
if (!RegisterClassEx (&WinClass) ) // Attempt To Register The Window Class
{
nuxDebugMsg (TEXT ("[DisplayAccessController::~DisplayAccessController] Failed to register window class name: %s."), WINDOW_CLASS_NAME);
inlWin32MessageBox (NULL, TEXT ("Error"), MBTYPE_Ok, MBICON_Error, MBMODAL_ApplicationModal,
TEXT ("Failed to register window class name.\nThe program will exit.") );
//MessageBox(NULL, TEXT("Failed To Register The Window Class."), TEXT(""ERROR"), MB_OK | MB_ICONERROR);
exit (1);
}
#endif
}
DisplayAccessController::~DisplayAccessController()
{
#if defined(NUX_OS_WINDOWS)
if (!UnregisterClass (WINDOW_CLASS_NAME, hInstance) ) // Are We Able To Unregister Class
{
nuxDebugMsg (TEXT ("[DisplayAccessController::~DisplayAccessController] Failed to unregister window class name: %s."), WINDOW_CLASS_NAME);
hInstance = NULL; // Set hInstance To NULL
}
#endif
}
DisplayAccessController &DisplayAccessController::Instance()
{
if (m_pInstance == 0)
{
m_pInstance = new DisplayAccessController();
}
return *m_pInstance;
}
GraphicsDisplay *DisplayAccessController::CreateGLWindow (const TCHAR *WindowTitle, unsigned int WindowWidth, unsigned int WindowHeight, WindowStyle Style, GraphicsDisplay *GLWindow, bool FullscreenFlag/* = FALSE*/)
{
if (GetThreadGLWindow() )
{
// A GlWindow already exist for this thread.
nuxAssertMsg (0, TEXT ("Only one GLWindow per thread is allowed") );
return 0;
}
GraphicsDisplay *glwindow = new GraphicsDisplay();
glwindow->CreateOpenGLWindow (WindowTitle, WindowWidth, WindowHeight, Style, GLWindow, FullscreenFlag);
return glwindow;
}
#if defined(NUX_OS_WINDOWS)
GraphicsDisplay *DisplayAccessController::CreateFromForeignWindow (HWND WindowHandle, HDC WindowDCHandle, HGLRC OpenGLRenderingContext)
{
if (GetThreadGLWindow() )
{
// A GlWindow already exist for this thread.
nuxAssertMsg (0, TEXT ("Only one GLWindow per thread is allowed") );
return 0;
}
GraphicsDisplay *glwindow = new GraphicsDisplay();
glwindow->CreateFromOpenGLWindow (WindowHandle, WindowDCHandle, OpenGLRenderingContext);
return glwindow;
}
#elif defined(NUX_OS_LINUX)
GraphicsDisplay *DisplayAccessController::CreateFromForeignWindow (Display *X11Display, Window X11Window, GLXContext OpenGLContext)
{
if (GetThreadGLWindow() )
{
// A GlWindow already exist for this thread.
nuxAssertMsg (0, TEXT ("Only one GLWindow per thread is allowed") );
return 0;
}
GraphicsDisplay *glwindow = new GraphicsDisplay();
glwindow->CreateFromOpenGLWindow (X11Display, X11Window, OpenGLContext);
return glwindow;
}
#endif
}
GLEWContext *glewGetContext()
{
return nux::GetThreadGLWindow()->GetGLEWContext();
}
#if defined(NUX_OS_WINDOWS)
WGLEWContext *wglewGetContext()
{
return nux::GetThreadGLWindow()->GetWGLEWContext();
}
#elif defined(NUX_OS_LINUX)
GLXEWContext *glxewGetContext()
{
return nux::GetThreadGLWindow()->GetGLXEWContext();
}
#endif
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