LRESULT CALLBACK WndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
static HGLRC hglrc;
static GLuint program;
static GLuint width, height, texture;
static GLuint imgWidth, imgHeight;
switch (uMsg)
{
case WM_CREATE:
hglrc = CreateOpenGLContext(hwnd);
InitOpenGLFunctions();
RegisterErrorCallback();
program = LoadShader();
width = glGetUniformLocation(program, "width");
height = glGetUniformLocation(program, "height");
texture = glGetUniformLocation(program, "texture");
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, LoadTexture(ID_TEXTURE));
glUniform1i(texture, 0);
imgWidth = glGetUniformLocation(program, "img_width");
imgHeight = glGetUniformLocation(program, "img_height");
glUniform1f(imgWidth, 400.0f);
glUniform1f(imgHeight, 300.0f);
SetupModel(hwnd);
glClearColor(0.5f, 0.5f, 0.5f, 1.0f);
return 0;
case WM_PAINT:
Paint(hwnd);
return 0;
case WM_SIZE:
glViewport(0, 0, LOWORD(lParam), HIWORD(lParam));
glUniform1f(width, LOWORD(lParam));
glUniform1f(height, HIWORD(lParam));
InvalidateRect(hwnd, nullptr, FALSE);
return 0;
case WM_DESTROY:
DeleteOpenGLContext(hglrc);
PostQuitMessage(0);
return 0;
default:
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
}
LRESULT CALLBACK WndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
static HGLRC hglrc;
switch (uMsg)
{
case WM_CREATE:
hglrc = CreateOpenGLContext(hwnd);
return 0;
case WM_DESTROY:
DeleteOpenGLContext(hglrc);
PostQuitMessage(0);
return 0;
default:
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
}
int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPWSTR lpCmdLine, int nCmdShow)
{
MSG msg = { 0 };
window = InitWindow(hInstance); //1. Skapa fönster
AllocConsole();
HANDLE handle_out = GetStdHandle(STD_OUTPUT_HANDLE);
int hCrt = _open_osfhandle((long)handle_out, _O_TEXT);
FILE* hf_out = _fdopen(hCrt, "w");
setvbuf(hf_out, NULL, _IONBF, 1);
*stdout = *hf_out;
HANDLE handle_in = GetStdHandle(STD_INPUT_HANDLE);
hCrt = _open_osfhandle((long)handle_in, _O_TEXT);
FILE* hf_in = _fdopen(hCrt, "r");
setvbuf(hf_in, NULL, _IONBF, 128);
*stdin = *hf_in;
if (window)
{
HDC hDC = GetDC(window);
HGLRC hRC = CreateOpenGLContext(window); //2. Skapa och koppla OpenGL context
glewInit(); //3. Initiera The OpenGL Extension Wrangler Library (GLEW)
//glEnable(GL_CULL_FACE);
SetViewport(); //4. Sätt viewport
ShowWindow(window, nCmdShow);
state = new Menu();
buttonState = luaL_newstate();
luaL_openlibs(buttonState);
if (luaL_loadfile(buttonState, "Error.lua") || lua_pcall(buttonState, 0, 0, 0))
{
std::cout << "Error handler failed" << std::endl;
std::cerr << lua_tostring(buttonState, -1) << std::endl;
lua_pop(buttonState, 1);
}
lua_getglobal(buttonState, "ErrorHandler");
int luaErrorHandlerPos = lua_gettop(buttonState);
registerLuaFuncs();
if (luaL_loadfile(buttonState, "menuButtons.txt") || lua_pcall(buttonState, 0, 0, luaErrorHandlerPos))
{
std::cout << "erroooor" << std::endl;
std::cout << lua_tostring(buttonState, -1) << std::endl;
lua_pop(buttonState, 1);
}
setupButtons();
lua_pop(buttonState, 1);
while (WM_QUIT != msg.message)
{
if (msg.message == WM_LBUTTONDOWN)
clickUpdate();
if (PeekMessage(&msg, nullptr, 0, 0, PM_REMOVE))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
else
{
Update(); //9. Rendera
SwapBuffers(hDC); //10. Växla front- och back-buffer
}
}
wglMakeCurrent(NULL, NULL);
ReleaseDC(window, hDC);
wglDeleteContext(hRC);
DestroyWindow(window);
}
lua_close(buttonState);
return (int)msg.wParam;
}