inline bool Window::GetGLContext(void) {
DeleteGLContext();
m_glContext = SDL_GL_CreateContext(m_window);
if (m_glContext == NULL) {
Log("SDL_GL_CreateContext Failed", __LINE__);
return false;
}
SDLCheckError(__LINE__);
if (SDL_GL_SetSwapInterval(1) < 0) {
Log("SDL_GL_SetSwapInterval Failed", __LINE__);
return false;
}
SDLCheckError(__LINE__);
glewExperimental = true;
GLenum err = glewInit();
if (err != GLEW_OK) {
fprintf(stderr, "Error: %s\n", glewGetErrorString(err));
QuitError("glewInit");
}
return true;
}
inline Window& Window::Close(void) {
if (m_window != NULL) {
SDL_DestroyWindow(m_window);
m_window = NULL;
m_surface = NULL;
DeleteGLContext();
}
return *this;
}
// Simple, generic window init //
int WINAPI WinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance, _In_ LPSTR lpCmdLine, _In_ int iCmdShow)
{
WNDCLASS wc;
MSG msg;
bool Quit = FALSE;
DWORD dwExStyle; // Window Extended Style
DWORD dwStyle; // Window Style
// register window class
wc.style = CS_OWNDC;
wc.lpfnWndProc = WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);
wc.lpszMenuName = NULL;
wc.lpszClassName = L"BMFontGL";
RegisterClass(&wc);
dwExStyle = WS_EX_APPWINDOW; // Window Extended Style
dwStyle = WS_OVERLAPPEDWINDOW | WS_THICKFRAME; // Windows Style
RECT WindowRect; // Grabs Rectangle Upper Left / Lower Right Values
WindowRect.left = (long)0; // Set Left Value To 0
WindowRect.right = (long)WinWidth; // Set Right Value To Requested Width
WindowRect.top = (long)0; // Set Top Value To 0
WindowRect.bottom = (long)WinHeight; // Set Bottom Value To Requested Height
AdjustWindowRectEx(&WindowRect, dwStyle, FALSE, dwExStyle); // Adjust Window To True Requested Size
// Create The Window
if (!(hWnd = CreateWindowEx(dwExStyle, // Extended Style For The Window
L"BMFontGL", // Class Name
L"OpenGL BMFont Sample Implementation", // Window Title
dwStyle | // Defined Window Style
WS_CLIPSIBLINGS | // Required Window Style
WS_CLIPCHILDREN, // Required Window Style
CW_USEDEFAULT, 0, // Window Position
WindowRect.right - WindowRect.left, // Calculate Window Width
WindowRect.bottom - WindowRect.top, // Calculate Window Height
NULL, // No Parent Window
NULL, // No Menu
hInstance, // Instance
NULL))) // Dont Pass Anything To WM_CREATE
{
// Reset The Display
MessageBox(NULL, L"Window Creation Error.", L"ERROR", MB_OK | MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
//********** Program Initializations *************
//Enable Logging
LogOpen("glfonttest.log");
// enable OpenGL for the window
CreateGLContext();
//Basic Window Init
WRLOG("Starting Program");
ShowWindow(hWnd, SW_SHOW); // Show The Window
SetForegroundWindow(hWnd); // Slightly Higher Priority
SetFocus(hWnd); // Sets Keyboard Focus To The Window
ReSizeGLScene(WinWidth, WinHeight); // Set Up Our Perspective GL Screen
//Get the Supported OpenGl Version
CheckGLVersionSupport();
//Fill in the Window Rect;
GetClientRect(hWnd, &MyWindow);
//Set the OpenGl View
ViewOrtho(WinWidth, WinHeight);
//Load and Initialize the Fonts
wrlog("Starting to parse fonts.");
Lucida = new BMFont(WinWidth, WinHeight);
if (!Lucida->LoadFont("lucida.fnt"))
{
MessageBox(NULL, L"Error, font file not found, exiting", L"File Not Found", MB_ICONERROR | MB_OK);
Quit = TRUE;
//PostQuitMessage(-1);
}
LOG_DEBUG("Font Loaded Sucessfully");
Snap = new BMFont(WinWidth, WinHeight);
if (!Snap->LoadFont("snap.fnt"))
{
MessageBox(NULL, L"Error, font file not found, exiting", L"File Not Found", MB_ICONERROR | MB_OK);
Quit = TRUE;
//PostQuitMessage(-1);
}
LOG_DEBUG("Font Loaded Sucessfully");
Times = new BMFont(WinWidth, WinHeight);
if (!Times->LoadFont("times.fnt"))
{
MessageBox(NULL, L"Error, font file not found, exiting", L"File Not Found", MB_ICONERROR | MB_OK);
Quit = TRUE;
// PostQuitMessage(-1);
}
LOG_DEBUG("Font Loaded Sucessfully");
// ********** Program Main Loop **********
while (!Quit) {
// check for messages
if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
// handle or dispatch messages
if (msg.message == WM_QUIT) {
Quit = TRUE;
}
else {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
else {
// ********** OpenGL drawing code, very simple, just to show off the font. **********
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClear(GL_COLOR_BUFFER_BIT);
// setup texture mapping
glEnable(GL_TEXTURE_2D);
glLoadIdentity();
Times->SetAlign(BMFont::AlignCenter);
Times->SetScale(1.5f);
Times->SetColor(250, 251, 252, 255);
Times->Print(0, 280, "A different font, centered. Kerning: To Ti");
/*
Lucida->setColor(250,250,55,254);
Lucida->PrintCenter(240,"This is another font.");
Snap->setColor(255,255,255,255);
Snap->setScale(1.0f);
Snap->Print(0, 0, "This is standard printing.");
*/
Snap->SetColor(RGB_WHITE);
Snap->SetAngle(0);
Snap->SetScale(2.0f);
Snap->SetAlign(BMFont::AlignNear);
Snap->Print(40.0, 180, "Scaling makes it Big!");
Snap->SetColor(RGB_WHITE);
Snap->SetScale(1.0f);
Snap->SetAngle(90);
Snap->Print(130.0, 100, "The next line is right here.");
Snap->SetAngle(0);
Snap->Print(130.0, 350, "Another long line here.");
/*
Snap->setScale(1.0f);
Snap->Print(2, Snap->getHeight()*4, "Or it can make it smaller!");
Snap->setScale(1.0f);
Snap->setColor(25,155,255,255);
Snap->PrintCenter(320, "Centered printing: To Ti");
*/
Times->Render();
Snap->Render();
GlSwap();
}
}
// ********** Cleanup and exit gracefully. **********
// shutdown OpenGL
delete Lucida;
delete Snap;
delete Times;
DeleteGLContext();
LogClose();
// destroy the window
DestroyWindow(hWnd);
return (int)msg.wParam;
}
