internal void
Win32InitOpenGL(HDC WindowDC)
{
Win32LoadWGLExtensions();
HGLRC OpenGLRC = 0;
bool32 ModernContext = true;
if(wglCreateContextAttribsARB)
{
int Win32OpenGLAttribs[] = {
WGL_CONTEXT_MAJOR_VERSION_ARB,
3,
WGL_CONTEXT_MINOR_VERSION_ARB,
1,
WGL_CONTEXT_FLAGS_ARB,
WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB
#if LUDUS_INTERNAL
|
WGL_CONTEXT_DEBUG_BIT_ARB
#endif
,
WGL_CONTEXT_PROFILE_MASK_ARB,
WGL_CONTEXT_CORE_PROFILE_BIT_ARB,
0
};
Win32SetPixelFormat(WindowDC);
OpenGLRC = wglCreateContextAttribsARB(WindowDC, 0, Win32OpenGLAttribs);
}
if(!OpenGLRC)
{
ModernContext = false;
OpenGLRC = wglCreateContext(WindowDC);
}
if(wglMakeCurrent(WindowDC, OpenGLRC))
{
InitOpenGL(ModernContext);
if(wglSwapInterval)
{
wglSwapInterval(1);
}
}
else
{
Win32Log("Couldnt set OpenGL context");
LOG_FORMATTED_ERROR(4096);
}
}
int main (int argc, char **argv)
{
rvgGlutInit( argc, argv );
rvgGLInit();
wglSwapInterval( 0 );
shaderDefault = new Shader();
shaderDefault->addSource( ShaderType::Vertex, "shaders/default.vert.c" );
shaderDefault->addSource( ShaderType::Fragment, "shaders/default.frag.c" );
shaderDefault->load();
glutMainLoop();
}
void WIN32Window::setVerticalSync(bool enable)
{
#ifdef OPENGL_ES
eglSwapInterval(m_eglDisplay, enable ? 1 : 0);
#else
if(!isExtensionSupported("WGL_EXT_swap_control"))
return;
typedef BOOL (WINAPI * wglSwapIntervalProc)(int);
wglSwapIntervalProc wglSwapInterval = (wglSwapIntervalProc)getExtensionProcAddress("wglSwapIntervalEXT");
if(!wglSwapInterval)
return;
wglSwapInterval(enable ? 1 : 0);
#endif
}
int CALLBACK WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPSTR lpCmdLine, int nCmdShow) {
// Init pixel buffer
// g_pixel_buffer.allocate(&g_program_memory);
// Create window class
WNDCLASS WindowClass = {};
WindowClass.style = CS_OWNDC | CS_VREDRAW | CS_HREDRAW;
WindowClass.lpfnWndProc = Win32WindowProc;
WindowClass.hInstance = hInstance;
WindowClass.lpszClassName = "VMWindowClass";
if (!RegisterClass(&WindowClass)) {
// TODO: logging
printf("Couldn't register window class\n");
exit(1);
}
// Create window so that its client area is exactly kWindowWidth/Height
DWORD WindowStyle = WS_OVERLAPPEDWINDOW | WS_VISIBLE;
RECT WindowRect = {};
const int kWindowWidth = 1024;
const int kWindowHeight = 768;
g_pixel_buffer.width = kWindowWidth;
g_pixel_buffer.height = kWindowHeight;
g_pixel_buffer.max_width = 3000;
g_pixel_buffer.max_height = 3000;
g_pixel_buffer.memory =
malloc(sizeof(u32) * g_pixel_buffer.width * g_pixel_buffer.height + 100);
WindowRect.right = kWindowWidth;
WindowRect.bottom = kWindowHeight;
AdjustWindowRect(&WindowRect, WindowStyle, 0);
int WindowWidth = WindowRect.right - WindowRect.left;
int WindowHeight = WindowRect.bottom - WindowRect.top;
HWND Window = CreateWindow(WindowClass.lpszClassName, 0, WindowStyle,
CW_USEDEFAULT, CW_USEDEFAULT, WindowWidth,
WindowHeight, 0, 0, hInstance, 0);
if (!Window) {
printf("Couldn't create window\n");
exit(1);
}
// We're not going to release it as we use CS_OWNDC
HDC hdc = GetDC(Window);
g_running = true;
// Set proper buffer values based on actual client size
Win32ResizeClientWindow(Window);
printf("%d:%d\n", g_pixel_buffer.width, g_pixel_buffer.height);
// Init OpenGL
{
PIXELFORMATDESCRIPTOR DesiredPixelFormat = {};
DesiredPixelFormat.nSize = sizeof(DesiredPixelFormat);
DesiredPixelFormat.nVersion = 1;
DesiredPixelFormat.iPixelType = PFD_TYPE_RGBA;
DesiredPixelFormat.dwFlags =
PFD_SUPPORT_OPENGL | PFD_DRAW_TO_WINDOW | PFD_DOUBLEBUFFER;
DesiredPixelFormat.cColorBits = 32;
DesiredPixelFormat.cAlphaBits = 8;
DesiredPixelFormat.iLayerType = PFD_MAIN_PLANE;
int SuggestedPixelFormatIndex = ChoosePixelFormat(hdc, &DesiredPixelFormat);
PIXELFORMATDESCRIPTOR SuggestedPixelFormat;
DescribePixelFormat(hdc, SuggestedPixelFormatIndex,
sizeof(SuggestedPixelFormat), &SuggestedPixelFormat);
SetPixelFormat(hdc, SuggestedPixelFormatIndex, &SuggestedPixelFormat);
HGLRC OpenGLRC = wglCreateContext(hdc);
if (wglMakeCurrent(hdc, OpenGLRC)) {
// Success
glGenTextures(1, &gTextureHandle);
typedef BOOL WINAPI wgl_swap_interval_ext(int interval);
wgl_swap_interval_ext *wglSwapInterval =
(wgl_swap_interval_ext *)wglGetProcAddress("wglSwapIntervalEXT");
if (wglSwapInterval) {
wglSwapInterval(1);
} else {
// VSync not enabled or not supported
assert(false);
}
} else {
// Something's wrong
assert(false);
}
}
// Event loop
while (g_running) {
// Process messages
MSG message;
while (PeekMessage(&message, 0, 0, 0, PM_REMOVE)) {
// Get keyboard messages
switch (message.message) {
case WM_QUIT: {
g_running = false;
} break;
case WM_SYSKEYDOWN:
case WM_SYSKEYUP:
case WM_KEYDOWN:
case WM_KEYUP: {
u32 vk_code = (u32)message.wParam;
b32 was_down = ((message.lParam & (1 << 30)) != 0);
b32 is_down = ((message.lParam & (1 << 31)) == 0);
b32 alt_key_was_down = (message.lParam & (1 << 29));
if ((vk_code == VK_F4) && alt_key_was_down) {
g_running = false;
}
if (was_down == is_down) {
break; // nothing has changed
}
if (vk_code == VK_ESCAPE) {
g_running = false;
}
} break;
default: {
TranslateMessage(&message);
DispatchMessageA(&message);
} break;
}
}
update_and_render(&g_pixel_buffer);
Win32UpdateWindow(hdc);
}
return 0;
}
void DisableVSync(void) {
wglSwapIntervalFunc wglSwapInterval = (wglSwapIntervalFunc) wglGetProcAddress("wglSwapIntervalEXT");
if (wglSwapInterval)
wglSwapInterval(0);
}
MyWindow::MyWindow(const std::string &title,int width,int height)
: initError(false),clientWidth(0),clientHeight(0),iconified(false),focused(true),sized(false),
justCreated(true),mouseMoveCallback(0),inputCallback(0),lockCursor(false),foreground(true)
{
#ifdef WIN32
hglrc=0;
hdc=0;
//
HINSTANCE hInstance=GetModuleHandle(0);
WNDCLASSEX wcex;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_HREDRAW | CS_VREDRAW;
wcex.lpfnWndProc = WndProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hIcon = LoadIcon(hInstance,MAKEINTRESOURCE(IDI_APPLICATION));
wcex.hCursor = LoadCursor(NULL,IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wcex.lpszMenuName = NULL;
#ifdef UNICODE
wcex.lpszClassName = L"win32app";
#else
wcex.lpszClassName = "win32app";
#endif
wcex.hIconSm = LoadIcon(wcex.hInstance,MAKEINTRESOURCE(IDI_APPLICATION));
if(!RegisterClassEx(&wcex)) {
std::cout << "MyWindow : Call to RegisterClassEx failed!\n";
}
#ifdef UNICODE
wchar_t title2[256];
MultiByteToWideChar(CP_ACP,0,title.c_str(),-1,title2,256);
#else
const char *title2=title.c_str();
#endif
hWnd = CreateWindow(wcex.lpszClassName,title2,WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,CW_USEDEFAULT,width,height,NULL,NULL,hInstance,NULL);
SetWindowLongPtr(hWnd,GWL_USERDATA,(LONG_PTR)this);
ShowWindow(hWnd,SW_SHOW);
//
hdc= GetDC(hWnd);
PIXELFORMATDESCRIPTOR pfd;
ZeroMemory(&pfd,sizeof(pfd));
pfd.nSize = sizeof(pfd);
pfd.nVersion = 1;
pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_GENERIC_ACCELERATED | PFD_DOUBLEBUFFER;
pfd.iPixelType = PFD_TYPE_RGBA;
pfd.cColorBits = 24;
pfd.cRedBits = pfd.cGreenBits = pfd.cBlueBits = 8;
pfd.cDepthBits = 32;
int iPixelFormat = ChoosePixelFormat(hdc,&pfd);
if(iPixelFormat == 0) {
std::cout << "MyWindow : ChoosePixelFormat failed.\n";
initError=true;
return;
}
if(SetPixelFormat(hdc,iPixelFormat,&pfd) != TRUE) {
std::cout << "MyWindow : SetPixelFormat failed.\n";
initError=true;
return;
}
//
HGLRC tempContext = wglCreateContext(hdc);
wglMakeCurrent(hdc,tempContext);
//
PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribsARB=
(PFNWGLCREATECONTEXTATTRIBSARBPROC)wglGetProcAddress("wglCreateContextAttribsARB");
PFNWGLSWAPINTERVALEXTPROC wglSwapInterval=
(PFNWGLSWAPINTERVALEXTPROC)wglGetProcAddress("wglSwapIntervalEXT");
//
wglMakeCurrent(0,0);
wglDeleteContext(tempContext);
//
int attribs[] ={
WGL_CONTEXT_MAJOR_VERSION_ARB,3,
WGL_CONTEXT_MINOR_VERSION_ARB,3,
WGL_CONTEXT_FLAGS_ARB,0,
0
};
hglrc=wglCreateContextAttribsARB(hdc,0,attribs);
for(int i=2;i>=0;i--) {
if(!hglrc) {
attribs[3]=i;
hglrc=wglCreateContextAttribsARB(hdc,0,attribs);
}
}
if(!hglrc) {
std::cout << "OpenGL 3+ not supported.\n";
initError=true;
return;
}
wglMakeCurrent(hdc,hglrc);
wglSwapInterval(1);
//
RAWINPUTDEVICE Rid[2];
Rid[0].usUsagePage = (USHORT)0x01;//HID_USAGE_PAGE_GENERIC;
Rid[0].usUsage = (USHORT)0x02;//HID_USAGE_GENERIC_MOUSE;
Rid[0].dwFlags = RIDEV_INPUTSINK;
Rid[0].hwndTarget = hWnd;
Rid[1].usUsagePage = (USHORT)0x01;//HID_USAGE_PAGE_GENERIC;
Rid[1].usUsage = (USHORT)0x06;//HID_USAGE_GENERIC_KEYBOARD;
Rid[1].dwFlags = RIDEV_INPUTSINK;
Rid[1].hwndTarget = hWnd;
RegisterRawInputDevices(Rid,2,sizeof(RAWINPUTDEVICE));
//
//inputCodeMap[65]=keyA;
//inputCodeMap[68]=keyD;
//inputCodeMap[83]=keyS;
//inputCodeMap[87]=keyW;
#endif
#ifdef LINUX
// bool ctxErrorOccurred=false;
display = XOpenDisplay(NULL);
if(!display) {
std::cout << "Window : Failed to open X display.\n";
initError=true;
return;
}
static int visual_attribs[] ={
GLX_X_RENDERABLE,True,
GLX_DRAWABLE_TYPE,GLX_WINDOW_BIT,
GLX_RENDER_TYPE,GLX_RGBA_BIT,
GLX_X_VISUAL_TYPE,GLX_TRUE_COLOR,
GLX_RED_SIZE,8,
GLX_GREEN_SIZE,8,
GLX_BLUE_SIZE,8,
GLX_ALPHA_SIZE,8,
GLX_DEPTH_SIZE,24,
GLX_STENCIL_SIZE,8,
GLX_DOUBLEBUFFER,True,
//GLX_SAMPLE_BUFFERS , 1,
//GLX_SAMPLES , 4,
None
};
int glx_major,glx_minor;
if(!glXQueryVersion(display,&glx_major,&glx_minor) ||
((glx_major == 1) && (glx_minor < 3)) || (glx_major < 1)) {
std::cout << "Window : Invalid GLX version.\n";
initError=true;
return;
}
int fbcount;
GLXFBConfig* fbc = glXChooseFBConfig(display,DefaultScreen(display),visual_attribs,&fbcount);
if(!fbc) {
std::cout << "Window :Failed to retrieve a framebuffer config.\n";
initError=true;
return;
}
int best_fbc = -1,worst_fbc = -1,best_num_samp = -1,worst_num_samp = 999;
for(int i=0; i<fbcount; ++i) {
XVisualInfo *vi = glXGetVisualFromFBConfig(display,fbc[i]);
if(vi) {
int samp_buf,samples;
glXGetFBConfigAttrib(display,fbc[i],GLX_SAMPLE_BUFFERS,&samp_buf);
glXGetFBConfigAttrib(display,fbc[i],GLX_SAMPLES,&samples);
std::cout << "Matching fbconfig " << i
<<", visual ID 0x" << vi->visualid
<< ": SAMPLE_BUFFERS = " << samp_buf
<<", SAMPLES = " << samples
<<"\n";
if(best_fbc < 0 || samp_buf && samples > best_num_samp) {
best_fbc = i;
best_num_samp = samples;
}
if(worst_fbc < 0 || !samp_buf || samples < worst_num_samp) {
worst_fbc = i;
worst_num_samp = samples;
}
}
XFree(vi);
}
GLXFBConfig bestFbc = fbc[best_fbc];
XFree(fbc);
XVisualInfo *vi = glXGetVisualFromFBConfig(display,bestFbc);
std::cout << "Chosen visual ID = 0x" << vi->visualid <<"\n";
XSetWindowAttributes swa;
swa.colormap = cmap = XCreateColormap(display,
RootWindow(display,vi->screen),
vi->visual,AllocNone);
swa.background_pixmap = None;
swa.border_pixel = 0;
swa.event_mask = ExposureMask | VisibilityChangeMask |KeyPressMask | PointerMotionMask |StructureNotifyMask;
swa.bit_gravity = StaticGravity;
win = XCreateWindow(display,RootWindow(display,vi->screen),
0,0,100,100,0,vi->depth,InputOutput,
vi->visual,
CWBorderPixel|CWColormap|CWEventMask,&swa);
if(!win) {
std::cout << "Window : Failed to create window.\n";
initError=true;
return;
}
XFree(vi);
XStoreName(display,win,title.c_str());
XMapWindow(display,win);
const char *glxExts = glXQueryExtensionsString(display,DefaultScreen(display));
glXCreateContextAttribsARBProc glXCreateContextAttribsARB = 0;
glXCreateContextAttribsARB = (glXCreateContextAttribsARBProc)
glXGetProcAddressARB((const GLubyte *) "glXCreateContextAttribsARB");
ctx = 0;
ctxErrorOccurred = false;
int(*oldHandler)(Display*,XErrorEvent*) =
XSetErrorHandler(&ctxErrorHandler);
if(!isExtensionSupported(glxExts,"GLX_ARB_create_context") ||
!glXCreateContextAttribsARB) {
std::cout << "Window : glXCreateContextAttribsARB() not found.\n";
initError=true;
return;
} else {
int context_attribs[] ={
GLX_CONTEXT_MAJOR_VERSION_ARB,3,
GLX_CONTEXT_MINOR_VERSION_ARB,0,
GLX_CONTEXT_FLAGS_ARB,0,
None
};
ctx = glXCreateContextAttribsARB(display,bestFbc,0,
True,context_attribs);
XSync(display,False);
if(!ctxErrorOccurred && ctx) {
std::cout << "Created GL 3.0 context\n";
} else {
std::cout << "Window : Failed to create GL 3.0 context.\n";
initError=true;
return;
}
}
//
XSync(display,False);
XSetErrorHandler(oldHandler);
if(ctxErrorOccurred || !ctx) {
std::cout << "Window : Failed to create an OpenGL context.\n";
initError=true;
return;
}
// Verifying that context is a direct context
if(!glXIsDirect(display,ctx)) {
std::cout << "Indirect GLX rendering context obtained.\n";
} else {
std::cout << "Direct GLX rendering context obtained.\n";
}
//
glXMakeCurrent(display,win,ctx);
if(PFNGLXSWAPINTERVALMESAPROC glXSwapIntervalMESA=
(PFNGLXSWAPINTERVALMESAPROC)
glXGetProcAddressARB((const GLubyte *)"glXSwapIntervalMESA")) {
glXSwapIntervalMESA(1);
} else if(PFNGLXSWAPINTERVALEXTPROC glXSwapIntervalEXT=
(PFNGLXSWAPINTERVALEXTPROC)
glXGetProcAddressARB((const GLubyte *)"glXSwapIntervalEXT")) {
glXSwapIntervalEXT(display,glXGetCurrentDrawable(),1);
} else if(PFNGLXSWAPINTERVALSGIPROC glXSwapIntervalSGI=
(PFNGLXSWAPINTERVALSGIPROC)
glXGetProcAddressARB((const GLubyte *)"glXSwapIntervalSGI")) {
glXSwapIntervalSGI(1);
}
#endif
}
int CALLBACK WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPSTR lpCmdLine, int nCmdShow) {
// Allocate program memory
g_program_memory.start = malloc(MAX_INTERNAL_MEMORY_SIZE);
g_program_memory.free_memory = g_program_memory.start;
// TODO: add checks for overflow when allocating
// Main program state
Program_State *state =
(Program_State *)g_program_memory.allocate(sizeof(Program_State));
state->init(&g_program_memory, &g_pixel_buffer,
(Raytrace_Work_Queue *)&g_raytrace_queue);
// Create window class
WNDCLASS WindowClass = {};
WindowClass.style = CS_OWNDC | CS_VREDRAW | CS_HREDRAW;
WindowClass.lpfnWndProc = Win32WindowProc;
WindowClass.hInstance = hInstance;
WindowClass.lpszClassName = "VMWindowClass";
// Set target sleep resolution
{
TIMECAPS tc;
UINT wTimerRes;
if (timeGetDevCaps(&tc, sizeof(TIMECAPS)) != TIMERR_NOERROR) {
OutputDebugStringA("Cannot set the sleep resolution\n");
exit(1);
}
wTimerRes = min(max(tc.wPeriodMin, 1), tc.wPeriodMax); // 1 ms
timeBeginPeriod(wTimerRes);
}
QueryPerformanceFrequency(&gPerformanceFrequency);
if (!RegisterClass(&WindowClass)) {
// TODO: logging
printf("Couldn't register window class\n");
exit(1);
}
// Create window so that its client area is exactly kWindowWidth/Height
DWORD WindowStyle = WS_OVERLAPPEDWINDOW | WS_VISIBLE;
RECT WindowRect = {};
WindowRect.right = state->kWindowWidth;
WindowRect.bottom = state->kWindowHeight;
AdjustWindowRect(&WindowRect, WindowStyle, 0);
int WindowWidth = WindowRect.right - WindowRect.left;
int WindowHeight = WindowRect.bottom - WindowRect.top;
HWND Window = CreateWindow(WindowClass.lpszClassName, 0, WindowStyle,
CW_USEDEFAULT, CW_USEDEFAULT, WindowWidth,
WindowHeight, 0, 0, hInstance, 0);
if (!Window) {
printf("Couldn't create window\n");
exit(1);
}
// We're not going to release it as we use CS_OWNDC
HDC hdc = GetDC(Window);
g_running = true;
// Set proper buffer values based on actual client size
Win32ResizeClientWindow(Window);
// Init OpenGL
{
PIXELFORMATDESCRIPTOR DesiredPixelFormat = {};
DesiredPixelFormat.nSize = sizeof(DesiredPixelFormat);
DesiredPixelFormat.nVersion = 1;
DesiredPixelFormat.iPixelType = PFD_TYPE_RGBA;
DesiredPixelFormat.dwFlags =
PFD_SUPPORT_OPENGL | PFD_DRAW_TO_WINDOW | PFD_DOUBLEBUFFER;
DesiredPixelFormat.cColorBits = 32;
DesiredPixelFormat.cAlphaBits = 8;
DesiredPixelFormat.iLayerType = PFD_MAIN_PLANE;
int SuggestedPixelFormatIndex = ChoosePixelFormat(hdc, &DesiredPixelFormat);
PIXELFORMATDESCRIPTOR SuggestedPixelFormat;
DescribePixelFormat(hdc, SuggestedPixelFormatIndex,
sizeof(SuggestedPixelFormat), &SuggestedPixelFormat);
SetPixelFormat(hdc, SuggestedPixelFormatIndex, &SuggestedPixelFormat);
HGLRC OpenGLRC = wglCreateContext(hdc);
if (wglMakeCurrent(hdc, OpenGLRC)) {
// Success
glGenTextures(1, &gTextureHandle);
typedef BOOL WINAPI wgl_swap_interval_ext(int interval);
wgl_swap_interval_ext *wglSwapInterval =
(wgl_swap_interval_ext *)wglGetProcAddress("wglSwapIntervalEXT");
if (wglSwapInterval) {
wglSwapInterval(1);
} else {
// VSync not enabled or not supported
assert(false);
}
} else {
// Something's wrong
assert(false);
}
}
Cursor_Type current_cursor = Cursor_Type_Arrow;
HCURSOR win_cursors[Cursor_Type__COUNT];
win_cursors[Cursor_Type_Arrow] = LoadCursor(NULL, IDC_ARROW);
win_cursors[Cursor_Type_Cross] = LoadCursor(NULL, IDC_CROSS);
win_cursors[Cursor_Type_Hand] = LoadCursor(NULL, IDC_HAND);
win_cursors[Cursor_Type_Resize_Vert] = LoadCursor(NULL, IDC_SIZENS);
win_cursors[Cursor_Type_Resize_Horiz] = LoadCursor(NULL, IDC_SIZEWE);
User_Input inputs[2];
User_Input *old_input = &inputs[0];
User_Input *new_input = &inputs[1];
*new_input = {};
LARGE_INTEGER last_timestamp = Win32GetWallClock();
// Create worker threads
{
const int kNumThreads = 4;
// Init work queue
g_raytrace_queue.next_entry_to_add = 0;
g_raytrace_queue.next_entry_to_do = 0;
u32 initial_num_threads = 0;
g_raytrace_queue.semaphore = CreateSemaphoreEx(
0, initial_num_threads, kNumThreads, 0, 0, SEMAPHORE_ALL_ACCESS);
Thread_Info threads[kNumThreads];
for (int i = 0; i < kNumThreads; i++) {
threads[i].thread_num = i + 1;
HANDLE thread_handle = CreateThread(
0, // LPSECURITY_ATTRIBUTES lpThreadAttributes,
0, // SIZE_T dwStackSize,
RaytraceWorkerThread, // LPTHREAD_START_ROUTINE lpStartAddress,
&threads[i], // LPVOID lpParameter,
0, // DWORD dwCreationFlags,
NULL // LPDWORD lpThreadId
);
threads[i].thread_handle = thread_handle;
if (thread_handle == NULL) {
printf("CreateThread error: %d\n", GetLastError());
exit(1);
}
}
}
// Event loop
while (g_running) {
// Process messages
MSG message;
while (PeekMessage(&message, 0, 0, 0, PM_REMOVE)) {
// Get keyboard messages
switch (message.message) {
case WM_QUIT: {
g_running = false;
} break;
case WM_SYSKEYDOWN:
case WM_SYSKEYUP:
case WM_KEYDOWN:
case WM_KEYUP: {
u32 vk_code = (u32)message.wParam;
bool was_down = ((message.lParam & (1 << 30)) != 0);
bool is_down = ((message.lParam & (1 << 31)) == 0);
bool alt_key_was_down = (message.lParam & (1 << 29)) != 0;
if ((vk_code == VK_F4) && alt_key_was_down) {
g_running = false;
}
if (was_down == is_down) {
break; // nothing has changed
}
if (vk_code == VK_ESCAPE) {
new_input->buttons[IB_escape] = is_down;
}
if (vk_code == VK_UP) {
new_input->buttons[IB_up] = is_down;
}
if (vk_code == VK_DOWN) {
new_input->buttons[IB_down] = is_down;
}
if (vk_code == VK_LEFT) {
new_input->buttons[IB_left] = is_down;
}
if (vk_code == VK_RIGHT) {
new_input->buttons[IB_right] = is_down;
}
if (vk_code == VK_SHIFT) {
new_input->buttons[IB_shift] = is_down;
}
// Handle symbols
int symbol = (int)vk_code;
if (vk_code == VK_NUMPAD0)
symbol = '0';
else if (vk_code == VK_NUMPAD1)
symbol = '1';
else if (vk_code == VK_NUMPAD2)
symbol = '2';
else if (vk_code == VK_NUMPAD3)
symbol = '3';
else if (vk_code == VK_NUMPAD4)
symbol = '4';
else if (vk_code == VK_NUMPAD5)
symbol = '5';
else if (vk_code == VK_NUMPAD6)
symbol = '6';
else if (vk_code == VK_NUMPAD7)
symbol = '7';
else if (vk_code == VK_NUMPAD8)
symbol = '8';
else if (vk_code == VK_NUMPAD9)
symbol = '9';
if (('A' <= symbol && symbol <= 'Z') ||
('0' <= symbol && symbol <= '9')) {
new_input->buttons[IB_key] = is_down;
new_input->symbol = symbol;
}
} break;
case WM_MOUSEWHEEL: {
int delta = (int)message.wParam / (65536 * WHEEL_DELTA);
new_input->scroll += delta;
} break;
default: {
TranslateMessage(&message);
DispatchMessageA(&message);
} break;
}
}
// Get mouse input
{
POINT mouse_pointer;
GetCursorPos(&mouse_pointer);
ScreenToClient(Window, &mouse_pointer);
new_input->mouse = {mouse_pointer.x, mouse_pointer.y};
new_input->buttons[IB_mouse_left] =
(GetKeyState(VK_LBUTTON) & (1 << 15)) != 0;
new_input->buttons[IB_mouse_right] =
(GetKeyState(VK_RBUTTON) & (1 << 15)) != 0;
new_input->buttons[IB_mouse_middle] =
(GetKeyState(VK_MBUTTON) & (1 << 15)) != 0;
}
Update_Result result =
update_and_render(&g_program_memory, state, new_input);
#include "debug/ED_debug_draw.cpp"
assert(0 <= result.cursor && result.cursor < Cursor_Type__COUNT);
SetCursor(win_cursors[result.cursor]);
Win32UpdateWindow(hdc);
// Swap inputs
User_Input *tmp = old_input;
old_input = new_input;
new_input = tmp;
// Zero input
*new_input = {};
new_input->old = old_input; // Save so we can refer to it later
// Retain the button state
for (size_t i = 0; i < COUNT_OF(new_input->buttons); i++) {
new_input->buttons[i] = old_input->buttons[i];
}
for (size_t i = 0; i < COUNT_OF(new_input->mouse_positions); i++) {
new_input->mouse_positions[i] = old_input->mouse_positions[i];
}
new_input->symbol = old_input->symbol;
r32 ms_elapsed =
Win32GetMillisecondsElapsed(last_timestamp, Win32GetWallClock());
g_FPS.value = (int)(1000.0f / ms_elapsed);
last_timestamp = Win32GetWallClock();
}
return 0;
}