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/*
** ClanLib SDK
** Copyright (c) 1997-2005 The ClanLib Team
**
** This software is provided 'as-is', without any express or implied
** warranty. In no event will the authors be held liable for any damages
** arising from the use of this software.
**
** Permission is granted to anyone to use this software for any purpose,
** including commercial applications, and to alter it and redistribute it
** freely, subject to the following restrictions:
**
** 1. The origin of this software must not be misrepresented; you must not
** claim that you wrote the original software. If you use this software
** in a product, an acknowledgment in the product documentation would be
** appreciated but is not required.
** 2. Altered source versions must be plainly marked as such, and must not be
** misrepresented as being the original software.
** 3. This notice may not be removed or altered from any source distribution.
**
** Note: Some of the libraries ClanLib may link to may have additional
** requirements or restrictions.
**
** File Author(s):
**
** Magnus Norddahl
** (if your name is missing here, please add it)
**
** File purpose:
** This file is the WinMain entry point. It will setup the clanCore
** win32 environment.
**
** This file also contain the win32 specific implementations
** of the CL_System class.
**
** The win32 versions of CL_SetupCore functions are also defined here.
*/
#include "Core/precomp.h" // visual c++: precompiled header file MUST be mentioned FIRST.
#ifdef BORLAND
#include <stdio.h>
#pragma hdrstop
#endif
#include "init_win32.h"
#include "API/Core/System/keep_alive.h"
#include "API/Core/System/setupcore.h"
#include "API/Core/System/error.h"
#include "API/Core/System/clanstring.h"
#include "API/Core/System/cl_assert.h"
class FastTimer
{
public:
FastTimer(int a);
unsigned int GetTicks()
{
QueryPerformanceCounter((LARGE_INTEGER*)&end);
diff = ((end - start) * 1000) / freq;
return (unsigned int)(diff & 0xffffffff);
}
private:
__int64 freq;
__int64 start;
__int64 end;
__int64 diff;
};
FastTimer::FastTimer(int a)
{
QueryPerformanceFrequency((LARGE_INTEGER*)&freq);
QueryPerformanceCounter((LARGE_INTEGER*)&start);
}
class CL_Win32Event_Dispatcher : public CL_KeepAlive
{
public:
virtual void keep_alive();
};
// Setup a CL_System::keep_alive() listener that will read win32 events
// and dispatch them.
CL_Win32Event_Dispatcher *event_dispatcher = NULL;
void CL_SetupCore::set_instance(HINSTANCE hInstance)
{
CL_System_Win32::hInstance = hInstance;
}
void init_system()
{
event_dispatcher = new CL_Win32Event_Dispatcher;
// if you get this assertion, you forgot to call CL_SetupCore::set_instance()
// prior to CL_SetupCore::init().
cl_assert(CL_System_Win32::hInstance != NULL);
// Redirect C++ output streams to the output window in developer studio:
// std::cout = iostream(&debug_buf);
// cerr = iostream(&debug_buf);
}
void deinit_system()
{
delete event_dispatcher;
event_dispatcher = NULL;
}
void CL_Win32Event_Dispatcher::keep_alive()
{
// Check for win32 events and dispatch them to MainMessageHandler().
MSG msg;
while (PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE) == TRUE)
{
int ret = GetMessage(&msg, NULL, 0, 0);
if (ret > 0)
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
else
{
if (ret == 0)
throw CL_Error("WM_QUIT");
else
throw CL_Error(CL_String::from_int(GetLastError()));
}
}
}
// Win32 implementation of CL_System functions:
unsigned int CL_System::sys_time()
{
static FastTimer fastTimer(0);
return fastTimer.GetTicks();
}
void CL_System::sleep(int millis)
{
Sleep(millis);
}
int CL_System::get_num_cores() {
SYSTEM_INFO sysinf;
memset(&sysinf, 0, sizeof(SYSTEM_INFO));
GetSystemInfo(&sysinf);
long cpus = sysinf.dwNumberOfProcessors;
return (cpus < 1)?-1 : static_cast<int>(cpus);
}
std::string CL_System::get_exe_path()
{
// Get path to executable:
TCHAR szDllName[_MAX_PATH];
TCHAR szDrive[_MAX_DRIVE];
TCHAR szDir[_MAX_DIR];
TCHAR szFilename[256];
TCHAR szExt[256];
GetModuleFileName(0, szDllName, _MAX_PATH);
_splitpath(szDllName, szDrive, szDir, szFilename, szExt);
return std::string(szDrive) + std::string(szDir);
}
// Global vars:
HINSTANCE CL_System_Win32::hInstance = NULL;
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