void color_alg_disco__init(DiscoAlgState *state) {
state->cycleStartTime = currentMillis();
}
void color_alg_purple_calm__init(PurpleCalmAlgState *state) {
state->cycleStartTime = currentMillis();
}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
// console for debugging
//AllocConsole();
//freopen("CONOUT$","wb",stdout);
WNDCLASSEX wc;
HWND hwnd;
MSG msg;
// register window class
wc.cbSize = sizeof(WNDCLASSEX);
wc.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(NULL, IDI_WINLOGO);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = NULL;
wc.lpszMenuName = NULL;
wc.lpszClassName = g_windowClass;
wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
unsigned int winWidth = WINDOW_WIDTH;
unsigned int winHeight = WINDOW_HEIGHT;
if(!RegisterClassEx(&wc))
{
MessageBox(NULL, "Window Registration Failed", "Error", MB_ICONEXCLAMATION | MB_OK);
return 0;
}
// create window
hwnd = CreateWindowEx(
WS_EX_APPWINDOW | WS_EX_WINDOWEDGE,
g_windowClass,
"Title Window",
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT, winWidth, winHeight,
NULL, NULL, hInstance, NULL);
if(hwnd == NULL)
{
MessageBox(NULL, "Window Creation Failed", "Error", MB_ICONEXCLAMATION | MB_OK);
return 0;
}
HDC hdc;
if(!(hdc = GetDC(hwnd)))
printf("GetDC failed\n");
//* old set pixel format
// set pixel format
PIXELFORMATDESCRIPTOR pfd =
{
sizeof(PIXELFORMATDESCRIPTOR),
1,
PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER, // flags
PFD_TYPE_RGBA, // rgba framebuffer
32, // 32 bit color depth
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
24, 8, // 24 bit depth, 8 bit stencil
0, // # of aux buffers
PFD_MAIN_PLANE,
0, 0, 0, 0
};
// get available matching pixel format
int iPixelFormat;
if(!(iPixelFormat = ChoosePixelFormat(hdc, &pfd)))
printf("ChoosePixelFormat failed\n");
//*/
// assign pixel format to device context
if(!(SetPixelFormat(hdc, iPixelFormat, &pfd)))
printf("SetPixelFormat failed\n");
// create opengl context
HGLRC context;
if(!(context = wglCreateContext(hdc)))
printf("wglCreateContext failed\n");
if(!(wglMakeCurrent(hdc, context)))
printf("wglMakeCurrent failed\n");
// Now we want an updated pixel format and context
//*
PFNWGLCHOOSEPIXELFORMATARBPROC wglChoosePixelFormatARB = (PFNWGLCHOOSEPIXELFORMATARBPROC)wglGetProcAddress("wglChoosePixelFormatARB");
if(!wglChoosePixelFormatARB)
{
printf("wgl choose pixel format not supported?\n");
}
PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribsARB = (PFNWGLCREATECONTEXTATTRIBSARBPROC)wglGetProcAddress("wglCreateContextAttribsARB");
if(!wglCreateContextAttribsARB)
printf("wglCreateContextAttribsARB undefined\n");
// using wglchoosepixelformat
const int attribList[] =
{
WGL_DRAW_TO_WINDOW_ARB, GL_TRUE,
WGL_SUPPORT_OPENGL_ARB, GL_TRUE,
WGL_ACCELERATION_ARB, WGL_FULL_ACCELERATION_ARB,
WGL_DOUBLE_BUFFER_ARB, GL_TRUE,
WGL_PIXEL_TYPE_ARB, WGL_TYPE_RGBA_ARB,
WGL_DEPTH_BITS_ARB, 24,
WGL_STENCIL_BITS_ARB, 8,
0,
};
int ePixelFormat;
unsigned int numFormats;
int valid = wglChoosePixelFormatARB(hdc, attribList, NULL, 1, &ePixelFormat, &numFormats);
if (valid && numFormats >= 1)
{
// we have a valid format
printf("we have a valid format\n");
} else {
printf("wglchoosepixel format didn't find a valid format\n");
}
// if we found a valid format, it is stored in ePixelFormat
// delete old rendering context
int delc = wglDeleteContext(context);
if (!delc)
printf("failed to delete old context\n");
// release device context
ReleaseDC(hwnd, hdc);
// destroy the window
DestroyWindow(hwnd);
while(PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE))
{
// get rid of the first destroy message so it doesn't screw up later
int temp = GetMessage(&msg, NULL, 0, 0);
if (temp != 0) {
printf("whoops, something other than destroy was in message queue after destroywindow: (%i)\n", temp);
} else {
printf("disposed of the first destory message\n");
}
}
// now, make it all again
hwnd = CreateWindowEx(
WS_EX_APPWINDOW | WS_EX_WINDOWEDGE,
g_windowClass,
"Title Window",
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT, winWidth, winHeight,
NULL, NULL, hInstance, NULL);
// get the new device context
if(!(hdc = GetDC(hwnd)))
printf("second GetDC failed\n");
// set the pixel format the the extended one we got earlier
if (!SetPixelFormat(hdc, ePixelFormat, &pfd))
{
// failed to set pixel format
printf("failed to set extended pixel format\n");
}
// create extended opengl rendering context
int contextAttribs[] = {
WGL_CONTEXT_MAJOR_VERSION_ARB, 4,
WGL_CONTEXT_MINOR_VERSION_ARB, 2,
WGL_CONTEXT_PROFILE_MASK_ARB, WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB,
//WGL_CONTEXT_PROFILE_MASK_ARB, WGL_CONTEXT_CORE_PROFILE_BIT_ARB,
0
};
if(!(context = wglCreateContextAttribsARB(hdc, NULL, contextAttribs)))
printf("second wglCreateContext failed\n");
if(!(wglMakeCurrent(hdc, context)))
printf("second wglMakeCurrent failed\n");
//*/
ShowWindow(hwnd, nCmdShow);
SetForegroundWindow(hwnd);
SetFocus(hwnd);
UpdateWindow(hwnd);
// set initial mouse position
POINT p;
if(GetCursorPos(&p)) {
if (ScreenToClient(hwnd, &p)) {
g_mouse_x = p.x;
g_mouse_y = p.y;
} else {
printf("ScreenToClient failed\n");
}
} else {
printf("GetCursorPos failed\n");
}
initGL(winWidth, winHeight);
printf("finished init, starting main loop\n");
g_hwnd = hwnd;
g_current_millis = currentMillis();
// main loop
while(g_running)
{
while(PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE))
{
int temp = GetMessage(&msg, NULL, 0, 0);
if(temp > 0)
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
else
{
printf("getmessage returned nonpositive: (%i)\n", temp);
g_running = false;
break;
}
}
long long current_millis = currentMillis();
//printf("current_millis is %i\n", current_millis);
// wouldn't current_millis be bigger?
float dt = g_current_millis - current_millis;
g_current_millis = current_millis;
// draw stuff
renderGL();
update(dt);
g_running &= !keys[frontKeyBuffer][VK_ESCAPE];
swapKeyBuffers();
SwapBuffers(hdc);
}
printf("quitting\n");
//FreeConsole();
// delete the rendering context
wglMakeCurrent(NULL, NULL);
wglDeleteContext(context);
return msg.wParam;
}
