// Copyright (C) 2003-2008 Dolphin Project.

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License 2.0 for more details.

// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/

// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/

#ifndef _COMMON_H
#define _COMMON_H

#include <stdlib.h>

#ifdef _WIN32
#define POSIX 0
#define NOMINMAX
#define WEAK_SYMBOL __declspec(selectany)

#if _M_IX86
#define Crash() {__asm int 3}
#else
#if _MSC_VER > 1000
extern "C" {
	__declspec(dllimport) void __stdcall DebugBreak(void);
}
#define Crash() {DebugBreak();}
#else
#error fixme
#endif
#endif

#elif __GNUC__
#define TCHAR char
#define POSIX 1
#define MAX_PATH 260
#define WEAK_SYMBOL __attribute__((weak))
#define stricmp strcasecmp
#define Crash() {__builtin_trap();}
// #ifdef 64bit
// #define _M_IX86
// #else
#define _M_X64
// #endf
#endif

// Types

#ifdef _WIN32

#include <tchar.h>

typedef unsigned __int64 u64;
typedef unsigned __int32 u32;
typedef unsigned __int16 u16;
typedef unsigned __int8 u8;

typedef signed __int64 s64;
typedef signed __int32 s32;
typedef signed __int16 s16;
typedef signed __int8 s8;

#define GC_ALIGNED16(x) __declspec(align(16)) x
#define GC_ALIGNED64(x) __declspec(align(64)) x
#define GC_ALIGNED16_DECL(x) __declspec(align(16)) x
#define GC_ALIGNED64_DECL(x) __declspec(align(64)) x

#else

typedef char s8;
typedef short s16;
#define __int16 short
typedef int s32;
#define __int32 int
typedef long long s64;
#define __int64 long long

typedef unsigned char u8;
typedef unsigned char BYTE;
typedef unsigned short u16;
typedef unsigned int u32;
typedef unsigned int BOOL;
typedef unsigned int DWORD;
typedef unsigned long long u64;

#ifdef __LINUX__
typedef union _LARGE_INTEGER
{
	long long QuadPart;
} LARGE_INTEGER;
#endif

#if defined (__MINGW32__) || defined (_WIN32)
#define GC_ALIGNED16(x) __declspec(align(16)) x
#define GC_ALIGNED16_DECL(x) x
#else
#define GC_ALIGNED16(x)  x
#define GC_ALIGNED16_DECL(x) x __attribute((aligned(16)))
#endif

#ifndef __forceinline
#define __forceinline inline
#endif

#ifndef _T
#define _T(a) a
#endif

#endif

#if !defined (_MSC_VER) && !defined (HAVE_ALIGNED_MALLOC)

// declare linux equivalents
extern __forceinline void* gc_aligned_malloc(size_t size, size_t align)
{
	char* p = (char*)malloc(size + align);
	int off = 2 + align - ((s64)(p + 2) % align);

	p += off;
	*(u16*)(p - 2) = off;

	return(p);
}


extern __forceinline void gc_aligned_free(void* pmem)
{
	if (pmem != NULL)
	{
		char* p = (char*)pmem;
		free(p - (int)*(u16*)(p - 2));
	}
}


#define _aligned_malloc gc_aligned_malloc
#define _aligned_free gc_aligned_free

#endif

#if defined (_M_IX86) && defined (_WIN32)
#define HWCALL __cdecl
#else
#define HWCALL
#endif


// Hacks
#ifndef SAFE_DELETE
#define SAFE_DELETE(ptr) if (ptr){delete ptr; ptr = 0;}
#endif

// Common defines
// TODO(ector,fires): turn into inline function?
#undef min
#undef max

template<class T>
T min(const T& a, const T& b) {return(a > b ? b : a);}


template<class T>
T max(const T& a, const T& b) {return(a > b ? a : b);}




// Byte ordering

namespace Common
{
inline u8 swap8(u8 _data) {return(_data);}


#ifdef _WIN32
inline u16 swap16(u16 _data) {return(_byteswap_ushort(_data));}


inline u32 swap32(u32 _data) {return(_byteswap_ulong(_data));}


inline u64 swap64(u64 _data) {return(_byteswap_uint64(_data));}


#elif __linux__
}
#include <byteswap.h>
namespace Common
{
inline u16 swap16(u16 _data) {return(bswap_16(_data));}


inline u32 swap32(u32 _data) {return(bswap_32(_data));}


inline u64 swap64(u64 _data) {return(bswap_64(_data));}


#else
inline u16 swap16(u16 data) {return((data >> 8) | (data << 8));}


inline u32 swap32(u32 data) {return((swap16(data) << 16) | swap16(data >> 16));}


inline u64 swap64(u64 data) {return(((u64)swap32(data) << 32) | swap32(data >> 32));}
#endif


} // end of namespace Common

// Utility functions

void PanicAlert(const char* text, ...);
bool PanicYesNo(const char* text, ...);
extern void __Log(int logNumber, const char* text, ...);


// dummy class
class LogTypes
{
	public:

		enum LOG_TYPE
		{
			MASTER_LOG,
			BOOT,
			PIXELENGINE,
			COMMANDPROCESSOR,
			VIDEOINTERFACE,
			SERIALINTERFACE,
			PERIPHERALINTERFACE,
			MEMMAP,
			DSPINTERFACE,
			STREAMINGINTERFACE,
			DVDINTERFACE,
			GPFIFO,
			EXPANSIONINTERFACE,
			AUDIO_INTERFACE,
			GEKKO,
			HLE,
			DSPHLE,
			VIDEO,
			AUDIO,
			DYNA_REC,
			OSREPORT,
			CONSOLE,
			WII_IOB,
			WII_IPC,
			WII_IPC_HLE,
			NUMBER_OF_LOGS
		};
};

typedef bool (*PanicAlertHandler)(const char* text, bool yes_no);
void RegisterPanicAlertHandler(PanicAlertHandler handler);

void Host_UpdateLogDisplay();


// Logging macros
#ifdef LOGGING

#define LOG(t, ...) __Log(LogTypes::t, __VA_ARGS__);

#define _dbg_assert_(_t_, _a_) \
	if (!(_a_)){\
		LOG(_t_, "Error...\n\n  Line: %d\n  File: %s\n  Time: %s\n\nIgnore and continue?", \
				__LINE__, __FILE__, __TIME__); \
		if (!PanicYesNo("*** Assertion (see log)***\n")){Crash();} \
	}
#define _dbg_assert_msg_(_t_, _a_, ...)\
	if (!(_a_)){\
		LOG(_t_, __VA_ARGS__); \
		if (!PanicYesNo(__VA_ARGS__)){Crash();}	\
	}
#define _dbg_update_() Host_UpdateLogDisplay();

#else

#define LOG(_t_, ...)
#define _dbg_clear_()
#define _dbg_assert_(_t_, _a_) ;
#define _dbg_assert_msg_(_t_, _a_, _desc_, ...) ;
#define _dbg_update_() ;

#endif


#ifdef _WIN32
#define _assert_(_a_) _dbg_assert_(MASTER_LOG, _a_)
#define _assert_msg_(_t_, _a_, _fmt_, ...)\
	if (!(_a_)){\
		if (!PanicYesNo(_fmt_, __VA_ARGS__)){Crash();} \
	}
#else
#define _assert_(a)
#define _assert_msg_(...)
#endif
#endif