condition_variable::condition_variable()
: m_num_waiters(0)
{
#if _WIN32_WINNT == 0x0501
m_sem = CreateSemaphore(0, 0, INT_MAX, 0);
#else
m_sem = CreateSemaphoreEx(0, 0, INT_MAX, 0, 0, SEMAPHORE_ALL_ACCESS);
#endif
}
tsk_semaphore_handle_t* tsk_semaphore_create_2(int initial_val)
{
SEMAPHORE_T handle = tsk_null;
#if TSK_UNDER_WINDOWS
# if TSK_UNDER_WINDOWS_RT
handle = CreateSemaphoreEx(NULL, initial_val, 0x7FFFFFFF, NULL, 0x00000000, SEMAPHORE_ALL_ACCESS);
# else
handle = CreateSemaphore(NULL, initial_val, 0x7FFFFFFF, NULL);
# endif
#else
handle = tsk_calloc(1, sizeof(SEMAPHORE_S));
#if TSK_USE_NAMED_SEM
named_sem_t * nsem = (named_sem_t*)handle;
snprintf(nsem->name, (sizeof(nsem->name)/sizeof(nsem->name[0])) - 1, "/sem/%llu/%d.", tsk_time_epoch(), rand() ^ rand());
if ((nsem->sem = sem_open(nsem->name, O_CREAT /*| O_EXCL*/, S_IRUSR | S_IWUSR, initial_val)) == SEM_FAILED) {
#else
if (sem_init((SEMAPHORE_T)handle, 0, initial_val)) {
#endif
TSK_FREE(handle);
TSK_DEBUG_ERROR("Failed to initialize the new semaphore (errno=%d).", errno);
}
#endif
if (!handle) {
TSK_DEBUG_ERROR("Failed to create new semaphore");
}
return handle;
}
/**@ingroup tsk_semaphore_group
* Increments a semaphore.
* @param handle The semaphore to increment.
* @retval Zero if succeed and otherwise the function returns -1 and sets errno to indicate the error.
* @sa @ref tsk_semaphore_decrement.
*/
int tsk_semaphore_increment(tsk_semaphore_handle_t* handle)
{
int ret = EINVAL;
if (handle) {
#if TSK_UNDER_WINDOWS
if((ret = ReleaseSemaphore((SEMAPHORE_T)handle, 1L, NULL) ? 0 : -1))
#else
if((ret = sem_post((SEMAPHORE_T)GET_SEM(handle))))
#endif
{
TSK_DEBUG_ERROR("sem_post function failed: %d", ret);
}
}
return ret;
}
//----------------------------------------------------------------------------------------
amf_handle AMF_CDECL_CALL amf_create_semaphore(amf_long iInitCount, amf_long iMaxCount, const wchar_t* pName)
{
if(iMaxCount == 0)
{
return NULL;
}
#if defined(METRO_APP)
return CreateSemaphoreEx(NULL, iInitCount, iMaxCount, pName, 0, STANDARD_RIGHTS_ALL | SEMAPHORE_MODIFY_STATE);
#else
return CreateSemaphoreW(NULL, iInitCount, iMaxCount, pName);
#endif
}
void pthread_cond_init(pthread_cond_t *cv, const void * attr)
{
cv->waiters_count_ = 0;
cv->was_broadcast_ = 0;
cv->sema_ = CreateSemaphoreEx(NULL, // no security
0, // initially 0
0x7fffffff, // max count
NULL, // unnamed
0,
EVENT_ALL_ACCESS);
InitializeCriticalSectionEx(&cv->waiters_count_lock_, 10, 0);
cv->waiters_done_ = CreateEventEx(NULL, // no security
NULL, // unnamed
0, // auto-reset, unsignalled
EVENT_ALL_ACCESS);
}
SemaphoreWindows::SemaphoreWindows() {
#ifdef WINRT_ENABLED
semaphore=CreateSemaphoreEx(
NULL,
0,
0xFFFFFFF, //wathever
NULL,
0,
SEMAPHORE_ALL_ACCESS);
#else
semaphore=CreateSemaphore(
NULL,
0,
0xFFFFFFF, //wathever
NULL);
#endif
}
HANDLE QSystemSemaphorePrivate::handle(QSystemSemaphore::AccessMode)
{
// don't allow making handles on empty keys
if (key.isEmpty())
return 0;
// Create it if it doesn't already exists.
if (semaphore == 0) {
#if defined(Q_OS_WINRT)
semaphore = CreateSemaphoreEx(0, initialValue, MAXLONG, (wchar_t*)fileName.utf16(), 0, SEMAPHORE_ALL_ACCESS);
#else
semaphore = CreateSemaphore(0, initialValue, MAXLONG, (wchar_t*)fileName.utf16());
#endif
if (semaphore == NULL)
setErrorString(QLatin1String("QSystemSemaphore::handle"));
}
return semaphore;
}
static int
XAUDIO2_OpenDevice(_THIS, const char *devname, int iscapture)
{
HRESULT result = S_OK;
WAVEFORMATEX waveformat;
int valid_format = 0;
SDL_AudioFormat test_format = SDL_FirstAudioFormat(_this->spec.format);
IXAudio2 *ixa2 = NULL;
IXAudio2SourceVoice *source = NULL;
UINT32 devId = 0; /* 0 == system default device. */
if (iscapture) {
return SDL_SetError("XAudio2: capture devices unsupported.");
} else if (XAudio2Create(&ixa2, 0, XAUDIO2_DEFAULT_PROCESSOR) != S_OK) {
return SDL_SetError("XAudio2: XAudio2Create() failed at open.");
}
if (devname != NULL) {
UINT32 devcount = 0;
UINT32 i = 0;
if (i == devcount) {
ixa2->Release();
return SDL_SetError("XAudio2: Requested device not found.");
}
}
/* Initialize all variables that we clean on shutdown */
_this->hidden = (struct SDL_PrivateAudioData *)
SDL_malloc((sizeof *_this->hidden));
if (_this->hidden == NULL) {
return SDL_OutOfMemory();
}
SDL_memset(_this->hidden, 0, (sizeof *_this->hidden));
_this->hidden->ixa2 = ixa2;
_this->hidden->semaphore = CreateSemaphoreEx(NULL, 1, 2, NULL, 0, 0);
if (_this->hidden->semaphore == NULL) {
XAUDIO2_CloseDevice(_this);
return SDL_SetError("XAudio2: CreateSemaphore() failed!");
}
while ((!valid_format) && (test_format)) {
switch (test_format) {
case AUDIO_U8:
case AUDIO_S16:
case AUDIO_S32:
case AUDIO_F32:
_this->spec.format = test_format;
valid_format = 1;
break;
}
test_format = SDL_NextAudioFormat();
}
if (!valid_format) {
XAUDIO2_CloseDevice(_this);
return SDL_SetError("XAudio2: Unsupported audio format");
}
/* Update the fragment size as size in bytes */
SDL_CalculateAudioSpec(&_this->spec);
/* We feed a Source, it feeds the Mastering, which feeds the device. */
_this->hidden->mixlen = _this->spec.size;
_this->hidden->mixbuf = (Uint8 *) SDL_malloc(2 * _this->hidden->mixlen);
if (_this->hidden->mixbuf == NULL) {
XAUDIO2_CloseDevice(_this);
return SDL_OutOfMemory();
}
_this->hidden->nextbuf = _this->hidden->mixbuf;
SDL_memset(_this->hidden->mixbuf, 0, 2 * _this->hidden->mixlen);
/* We use XAUDIO2_DEFAULT_CHANNELS instead of _this->spec.channels. On
Xbox360, _this means 5.1 output, but on Windows, it means "figure out
what the system has." It might be preferable to let XAudio2 blast
stereo output to appropriate surround sound configurations
instead of clamping to 2 channels, even though we'll configure the
Source Voice for whatever number of channels you supply. */
result = ixa2->CreateMasteringVoice(&_this->hidden->mastering,
XAUDIO2_DEFAULT_CHANNELS, _this->spec.freq, 0,
nullptr, nullptr, AudioCategory_GameMedia);
// XAUDIO2_DEFAULT_CHANNELS,
// _this->spec.freq, 0, devId, NULL);
if (result != S_OK) {
XAUDIO2_CloseDevice(_this);
return SDL_SetError("XAudio2: Couldn't create mastering voice");
}
SDL_zero(waveformat);
if (SDL_AUDIO_ISFLOAT(_this->spec.format)) {
waveformat.wFormatTag = WAVE_FORMAT_IEEE_FLOAT;
} else {
waveformat.wFormatTag = WAVE_FORMAT_PCM;
}
waveformat.wBitsPerSample = SDL_AUDIO_BITSIZE(_this->spec.format);
waveformat.nChannels = _this->spec.channels;
waveformat.nSamplesPerSec = _this->spec.freq;
waveformat.nBlockAlign =
waveformat.nChannels * (waveformat.wBitsPerSample / 8);
waveformat.nAvgBytesPerSec =
waveformat.nSamplesPerSec * waveformat.nBlockAlign;
static VoiceCallback callbacks;
XAUDIO2_SEND_DESCRIPTOR descriptors[1];
descriptors[0].pOutputVoice = _this->hidden->mastering;
descriptors[0].Flags = 0;
XAUDIO2_VOICE_SENDS sends = {0};
sends.SendCount = 1;
sends.pSends = descriptors;
result = ixa2->CreateSourceVoice(&source, &waveformat, 0,
1.0f, &callbacks, &sends, nullptr);
if (result != S_OK) {
XAUDIO2_CloseDevice(_this);
return SDL_SetError("XAudio2: Couldn't create source voice");
}
_this->hidden->source = source;
/* Start everything playing! */
result = ixa2->StartEngine();
if (result != S_OK) {
XAUDIO2_CloseDevice(_this);
return SDL_SetError("XAudio2: Couldn't start engine");
}
result = source->Start(0, XAUDIO2_COMMIT_NOW);
if (result != S_OK) {
XAUDIO2_CloseDevice(_this);
return SDL_SetError("XAudio2: Couldn't start source voice");
}
return 0; /* good to go. */
}
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;
}
hl_semaphore_handle_t* hl_semaphore_create_2(int initial_val)
{
SEMAPHORE_T handle = hl_null;
#if HL_UNDER_WINDOWS
# if HL_UNDER_WINDOWS_RT
handle = CreateSemaphoreEx(NULL, initial_val, 0x7FFFFFFF, NULL, 0x00000000, SEMAPHORE_ALL_ACCESS);
# else
handle = CreateSemaphore(NULL, initial_val, 0x7FFFFFFF, NULL);
# endif
#else
handle = hl_memory_calloc(1, sizeof(SEMAPHORE_S));
#if HL_USE_NAMED_SEM
named_sem_t * nsem = (named_sem_t*)handle;
hl_sprintf(&(nsem->name), "/sem-%d", sem_count++);
if ((nsem->sem = sem_open(nsem->name, O_CREAT /*| O_EXCL*/, S_IRUSR | S_IWUSR, initial_val)) == SEM_FAILED) {
HL_MEMORY_FREE(nsem->name);
#else
if (sem_init((SEMAPHORE_T)handle, 0, initial_val)) {
#endif
HL_MEMORY_FREE(handle);
HL_DEBUG_ERROR("Failed to initialize the new semaphore (errno=%d).", errno);
}
#endif
if (!handle) {
HL_DEBUG_ERROR("Failed to create new semaphore");
}
return handle;
}
int hl_semaphore_increment(hl_semaphore_handle_t* handle)
{
int ret = EINVAL;
if (handle) {
#if HL_UNDER_WINDOWS
if ((ret = ReleaseSemaphore((SEMAPHORE_T)handle, 1L, NULL) ? 0 : -1)) {
#else
if ((ret = sem_post((SEMAPHORE_T)GET_SEM(handle)))) {
#endif
HL_DEBUG_ERROR("sem_post function failed: %d", ret);
}
}
return ret;
}
int hl_semaphore_decrement(hl_semaphore_handle_t* handle)
{
int ret = EINVAL;
if (handle) {
#if HL_UNDER_WINDOWS
# if HL_UNDER_WINDOWS_RT
ret = (WaitForSingleObjectEx((SEMAPHORE_T)handle, INFINITE, TRUE) == WAIT_OBJECT_0) ? 0 : -1;
# else
ret = (WaitForSingleObject((SEMAPHORE_T)handle, INFINITE) == WAIT_OBJECT_0) ? 0 : -1;
#endif
if(ret) {
HL_DEBUG_ERROR("sem_wait function failed: %d", ret);
}
#else
do {
ret = sem_wait((SEMAPHORE_T)GET_SEM(handle));
}
while ( errno == EINTR );
if (ret) {
HL_DEBUG_ERROR("sem_wait function failed: %d", errno);
}
#endif
}
return ret;
}
