191 lines
3.2 KiB
C++
191 lines
3.2 KiB
C++
//
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// mxToolKit (c) 1999 by Mete Ciragan
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//
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// file: mxGlWindow.cpp
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// implementation: Win32 API
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// last modified: Apr 21 1999, Mete Ciragan
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// copyright: The programs and associated files contained in this
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// distribution were developed by Mete Ciragan. The programs
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// are not in the public domain, but they are freely
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// distributable without licensing fees. These programs are
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// provided without guarantee or warrantee expressed or
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// implied.
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//
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#include "mxtk/mxGlWindow.h"
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#include <windows.h>
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//#include <ostream.h"
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static int g_formatMode = mxGlWindow::FormatDouble;
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static int g_formatColorBits = 24;
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static int g_formatDepthBits = 16;
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class mxGlWindow_i
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{
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public:
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HDC hdc;
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HGLRC hglrc;
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};
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mxGlWindow::mxGlWindow (mxWindow *parent, int x, int y, int w, int h, const char *label, int style)
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: mxWindow (parent, x, y, w, h, label, style)
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{
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PIXELFORMATDESCRIPTOR pfd =
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{
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sizeof (PIXELFORMATDESCRIPTOR), // size of this pfd
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1, // version number
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PFD_DRAW_TO_WINDOW | // support window
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PFD_SUPPORT_OPENGL | // support OpenGL
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PFD_DOUBLEBUFFER, // double buffered
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PFD_TYPE_RGBA, // RGBA type
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24, // 24-bit color depth
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0, 0, 0, 0, 0, 0, // color bits ignored
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0, // no alpha buffer
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0, // shift bit ignored
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0, // no accumulation buffer
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0, 0, 0, 0, // accum bits ignored
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16, // 32-bit z-buffer
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0, // no stencil buffer
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0, // no auxiliary buffer
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PFD_MAIN_PLANE, // main layer
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0, // reserved
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0, 0, 0 // layer masks ignored
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};
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d_this = new mxGlWindow_i;
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pfd.cColorBits = g_formatColorBits;
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pfd.cDepthBits = g_formatDepthBits;
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bool error = false;
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if ((d_this->hdc = GetDC ((HWND) getHandle ())) == NULL)
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{
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error = true;
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goto done;
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}
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int pfm;
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if ((pfm = ChoosePixelFormat (d_this->hdc, &pfd)) == 0)
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{
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error = true;
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goto done;
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}
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if (SetPixelFormat (d_this->hdc, pfm, &pfd) == FALSE)
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{
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error = true;
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goto done;
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}
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DescribePixelFormat (d_this->hdc, pfm, sizeof (pfd), &pfd);
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if ((d_this->hglrc = wglCreateContext (d_this->hdc)) == 0)
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{
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error = true;
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goto done;
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}
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if (!wglMakeCurrent (d_this->hdc, d_this->hglrc))
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{
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error = true;
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goto done;
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}
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setType (MX_GLWINDOW);
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setDrawFunc (0);
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done:
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if (error)
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delete this;
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}
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mxGlWindow::~mxGlWindow ()
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{
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if (d_this->hglrc)
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{
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wglMakeCurrent (NULL, NULL);
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//wglDeleteContext (d_this->hglrc);
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}
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if (d_this->hdc)
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ReleaseDC ((HWND) getHandle (), d_this->hdc);
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delete d_this;
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}
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int
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mxGlWindow::handleEvent (mxEvent *event)
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{
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return 0;
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}
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void
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mxGlWindow::redraw ()
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{
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makeCurrent ();
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if (d_drawFunc)
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d_drawFunc ();
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else
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draw ();
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swapBuffers ();
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}
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void
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mxGlWindow::draw ()
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{
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}
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int
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mxGlWindow::makeCurrent ()
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{
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if (wglMakeCurrent (d_this->hdc, d_this->hglrc))
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return 1;
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return 0;
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}
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int
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mxGlWindow::swapBuffers ()
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{
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if (SwapBuffers (d_this->hdc))
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return 1;
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return 0;
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}
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void
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mxGlWindow::setDrawFunc (void (*func) (void))
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{
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d_drawFunc = func;
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}
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void
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mxGlWindow::setFormat (int mode, int colorBits, int depthBits)
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{
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g_formatMode = mode;
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g_formatColorBits = colorBits;
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g_formatDepthBits = depthBits;
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}
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