static GLUSvoid glusInternalReshape(GLFWwindow* window, GLUSint width, GLUSint height)
{
if (width < 1)
{
width = 1;
}
if (height < 1)
{
height = 1;
}
if (glusReshape && g_initdone)
{
glusReshape(width, height);
}
}
GLUSvoid _glusWindowInternalReshape(GLUSint width, GLUSint height)
{
if (width < 1)
{
width = 1;
}
if (height < 1)
{
height = 1;
}
if (glusReshape && g_initdone)
{
glusReshape(width, height);
}
}
GLUSboolean GLUSAPIENTRY glusRun(GLUSvoid)
{
// Init Engine
if (glusInit)
{
if (!glusInit())
{
glusDestroyWindow(); // Destroy The Window
return GLUS_FALSE; // Exit The Program
}
}
g_initdone = GLUS_TRUE;
// Do the first reshape
if (glusReshape)
{
glusReshape(g_width, g_height);
}
while (!g_done) // Loop That Runs While done=FALSE
{
if (glusUpdate)
{
g_done = !glusUpdate(glusGetElapsedTime());
}
eglSwapBuffers(g_eglDisplay, g_eglSurface); // Swap Buffers (Double Buffering)
_glusPollEvents();
}
// Terminate Game
if (glusTerminate)
{
glusTerminate();
}
// Shutdown
glusDestroyWindow(); // Destroy The Window
return GLUS_TRUE; // Exit The Program
}
GLUSboolean GLUSAPIENTRY glusStartup(GLUSvoid)
{
// Init Engine
if (glusInit)
{
if (!glusInit())
{
glusShutdown();
return GLUS_FALSE; // Exit The Program
}
}
g_initdone = GLUS_TRUE;
// Do the first reshape
if (glusReshape)
{
glusReshape(g_width, g_height);
}
return GLUS_TRUE;
}
GLUSboolean GLUSAPIENTRY glusRun(GLUSvoid)
{
MSG msg; // Windows Message Structure
GLUSboolean done = GLUS_FALSE; // Bool Variable To Exit Loop
// Init Engine
if (glusInit)
{
if (!glusInit())
{
glusDestroyWindow(); // Destroy The Window
return GLUS_FALSE; // Exit The Program
}
}
g_initdone = GLUS_TRUE;
// Do the first reshape
if (glusReshape)
{
glusReshape(g_width, g_height);
}
while(!done) // Loop That Runs While done=FALSE
{
if (PeekMessage(&msg,NULL,0,0,PM_REMOVE)) // Is There A Message Waiting?
{
if (msg.message==WM_QUIT) // Have We Received A Quit Message?
{
done = GLUS_TRUE; // If So done=TRUE
}
else // If Not, Deal With Window Messages
{
TranslateMessage(&msg); // Translate The Message
DispatchMessage(&msg); // Dispatch The Message
}
}
else // If There Are No Messages
{
// Draw The Scene. Watch For ESC Key
if (g_active) // Program Active?
{
if (glusUpdate)
{
done = !glusUpdate(glusGetElapsedTime());
}
if (!done)
{
SwapBuffers(g_hDC); // Swap Buffers (Double Buffering)
}
}
}
}
// Terminate Game
if (glusTerminate)
{
glusTerminate();
}
// Shutdown
glusDestroyWindow(); // Destroy The Window
return GLUS_TRUE; // Exit The Program
}
LRESULT CALLBACK WndProc( HWND hWnd, // Handle For This Window
UINT uMsg, // Message For This Window
WPARAM wParam, // Additional Message Information
LPARAM lParam) // Additional Message Information
{
switch (uMsg) // Check For Windows Messages
{
case WM_ACTIVATE: // Watch For Window Activate Message
{
if (!HIWORD(wParam)) // Check Minimization State
{
g_active = GLUS_TRUE; // Program Is Active
}
else
{
g_active = GLUS_FALSE; // Program Is No Longer Active
}
return 0; // Return To The Message Loop
}
case WM_SYSCOMMAND: // Intercept System Commands
{
switch (wParam) // Check System Calls
{
case SC_SCREENSAVE: // Screensaver Trying To Start?
case SC_MONITORPOWER: // Monitor Trying To Enter Powersave?
return 0; // Prevent From Happening
}
break; // Exit
}
case WM_CLOSE: // Did We Receive A Close Message?
{
PostQuitMessage(0); // Send A Quit Message
return 0; // Jump Back
}
case WM_KEYDOWN: // Is A Key Being Held Down?
{
if (wParam == VK_ESCAPE)
{
PostQuitMessage(0); // Send A Quit Message
}
else
{
if(glusKey && g_initdone)
{
glusKey(GLUS_TRUE, wParam);
}
}
return 0; // Jump Back
}
case WM_KEYUP:
{
if (wParam == VK_ESCAPE)
{
// Do nothing
}
else
{
if(glusKey && g_initdone)
{
glusKey(GLUS_FALSE, wParam);
}
}
return 0; // Jump Back
}
case WM_LBUTTONDOWN:
case WM_MBUTTONDOWN:
case WM_RBUTTONDOWN:
{
if(glusMouse && g_initdone)
{
GLUSuint button = 0;
if (uMsg == WM_LBUTTONDOWN)
{
button = 1;
}
else if (uMsg == WM_MBUTTONDOWN)
{
button = 2;
}
else if (uMsg == WM_RBUTTONDOWN)
{
button = 4;
}
glusMouse(GLUS_TRUE, button, LOWORD( lParam ), HIWORD( lParam ) );
}
return 0;
}
case WM_LBUTTONUP:
case WM_MBUTTONUP:
case WM_RBUTTONUP:
{
if(glusMouse && g_initdone)
{
GLUSuint button = 0;
if (uMsg == WM_LBUTTONUP)
{
button = 1;
}
else if (uMsg == WM_MBUTTONUP)
{
button = 2;
}
else if (uMsg == WM_RBUTTONUP)
{
button = 4;
}
glusMouse(GLUS_FALSE, button, LOWORD( lParam ), HIWORD( lParam ) );
}
return 0;
}
case WM_MOUSEMOVE:
{
if(glusMouseMove && g_initdone)
{
GLUSuint buttons = 0;
if (LOWORD(wParam) & MK_LBUTTON)
{
buttons |= 1;
}
if (LOWORD(wParam) & MK_MBUTTON)
{
buttons |= 2;
}
if (LOWORD(wParam) & MK_RBUTTON)
{
buttons |= 4;
}
glusMouseMove(buttons, LOWORD( lParam ), HIWORD( lParam ) );
}
return 0;
}
case WM_MOUSEWHEEL:
{
if(glusMouseWheel && g_initdone)
{
GLUSuint buttons = 0;
if (LOWORD(wParam) & MK_LBUTTON)
{
buttons |= 1;
}
if (LOWORD(wParam) & MK_MBUTTON)
{
buttons |= 2;
}
if (LOWORD(wParam) & MK_RBUTTON)
{
buttons |= 4;
}
glusMouseWheel(buttons, GET_WHEEL_DELTA_WPARAM(wParam)/WHEEL_DELTA, LOWORD( lParam ), HIWORD( lParam ));
}
return 0;
}
case WM_SIZE: // Resize The OpenGL Window
{
g_width = LOWORD(lParam); // LoWord=Width, HiWord=Height
g_height = HIWORD(lParam);
if (glusReshape && g_initdone)
{
glusReshape(g_width, g_height);
}
return 0; // Jump Back
}
}
// Pass All Unhandled Messages To DefWindowProc
return DefWindowProc(hWnd, uMsg, wParam, lParam);
}