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#include "OGLAbstr.h"
LRESULT CALLBACK wndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
switch(msg)
{
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, msg, wParam, lParam);
break;
}
return (0);
}
OGLAbstr::OGLAbstr(HINSTANCE hInst, LogMgr* mLog)
{
hInstance = hInst;
log = mLog;
fakeClass.cbSize = sizeof(WNDCLASSEX);
fakeClass.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC | CS_DBLCLKS;
fakeClass.lpfnWndProc = wndProc;
fakeClass.cbClsExtra = 0; fakeClass.cbWndExtra = 0;
fakeClass.hInstance = hInstance;
fakeClass.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_APPLICATION));
fakeClass.hIconSm = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_APPLICATION));
fakeClass.hCursor = LoadCursor(NULL, IDC_ARROW);
fakeClass.hbrBackground = (HBRUSH)(COLOR_MENUBAR+1);
fakeClass.lpszMenuName = NULL;
fakeClass.lpszClassName = "temp";
RegisterClassEx(&fakeClass);
log->logMessage(log->WND, "Registered dummy class");
}
OGLAbstr::~OGLAbstr()
{
}
bool OGLAbstr::initGLEW()
{
HWND hWndFake = CreateWindow("temp", "FAKE", WS_OVERLAPPEDWINDOW | WS_MAXIMIZE | WS_CLIPCHILDREN, 0, 0, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL);
hDC = GetDC(hWndFake);
// First, choose false pixel format
PIXELFORMATDESCRIPTOR pfd;
memset(&pfd, 0, sizeof(PIXELFORMATDESCRIPTOR));
pfd.nSize= sizeof(PIXELFORMATDESCRIPTOR);
pfd.nVersion = 1;
pfd.dwFlags = PFD_DOUBLEBUFFER | PFD_SUPPORT_OPENGL | PFD_DRAW_TO_WINDOW;
pfd.iPixelType = PFD_TYPE_RGBA;
pfd.cColorBits = 32;
pfd.cDepthBits = 32;
pfd.iLayerType = PFD_MAIN_PLANE;
int iPixelFormat = ChoosePixelFormat(hDC, &pfd);
if (iPixelFormat == 0)return false;
if(!SetPixelFormat(hDC, iPixelFormat, &pfd))return false;
// Create the false, old style context (OpenGL 2.1 and before)
HGLRC hRCFake = wglCreateContext(hDC);
wglMakeCurrent(hDC, hRCFake);
if(glewInit() != GLEW_OK)
{
MessageBox(NULL, "Couldn't initialize GLEW!", "Fatal Error", MB_ICONERROR | MB_OK);
log->logMessage(log->GLERR, "Could not initialize GLEW!");
return false;
}
log->logMessage(log->GL, "Initialized GLEW");
wglMakeCurrent(NULL, NULL);
wglDeleteContext(hRCFake);
DestroyWindow(hWndFake);
UnregisterClass("temp", hInstance);
return true;
}
bool OGLAbstr::initGL(int AA)
{
#ifdef _EDITOR
hDC = GetDC(RenderWindow);
#endif
#ifdef _GAME
hDC = GetDC(Window);
#endif
PIXELFORMATDESCRIPTOR pfd;
const int iPixelFormatAttribList[] =
{
WGL_DRAW_TO_WINDOW_ARB, GL_TRUE,
WGL_SUPPORT_OPENGL_ARB, GL_TRUE,
WGL_DOUBLE_BUFFER_ARB, GL_TRUE,
WGL_PIXEL_TYPE_ARB, WGL_TYPE_RGBA_ARB,
WGL_COLOR_BITS_ARB, 32,
WGL_DEPTH_BITS_ARB, 24,
WGL_STENCIL_BITS_ARB, 8,
WGL_ARB_multisample, AA,
WGL_ACCELERATION_ARB, WGL_FULL_ACCELERATION_ARB,
0 // End of attributes list
};
int iContextAttribs[] =
{
WGL_CONTEXT_MAJOR_VERSION_ARB, 3,
WGL_CONTEXT_MINOR_VERSION_ARB, 0,
WGL_CONTEXT_FLAGS_ARB, WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
0 // End of attributes list
};
int iPixelFormat, iNumFormats;
if(!wglChoosePixelFormatARB(hDC, iPixelFormatAttribList, NULL, 1, &iPixelFormat, (UINT*)&iNumFormats))
{
log->logMessage(log->GLERR, "Could not find Pixel Format!");
return false;
}
// PFD seems to be only redundant parameter now
if(!SetPixelFormat(hDC, iPixelFormat, &pfd))return false;
hRC = wglCreateContextAttribsARB(hDC, 0, iContextAttribs);
// If everything went OK
if(hRC) wglMakeCurrent(hDC, hRC);
glClearColor(0.3f, 0.3f, 0.3f, 1.0f);
return true;
}
bool OGLAbstr::openGameWindow(WNDCLASSEX wc, std::string title, int x, int y)
{
Window = CreateWindowEx(0, "GC", title.c_str(), WS_OVERLAPPEDWINDOW | WS_MAXIMIZE | WS_VISIBLE, x, y, CW_USEDEFAULT, CW_USEDEFAULT, 0, 0, hInstance, 0);
if(Window == NULL)
return false;
ShowWindow(Window, SW_SHOW);
return true;
}
void OGLAbstr::renderFrame()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
SwapBuffers(hDC);
}
bool OGLAbstr::openEditorWindow(WNDCLASSEX wc)
{
return true;
}
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