#include "mungal4.h"
#pragma hdrstop

#include "l4mouse.h"

#define MOUSEINT	0x33

//
//############################################################################
// Creator - reset the driver and check for existence
//
//############################################################################
//
Mouse::Mouse()
{
	/*STUBBED: RB 2/11/07
	Check_Pointer(this);

	//
	//-----------------------------------------------
	// Reset driver and read status
	//-----------------------------------------------
	//
	__int16 _AX, _BX;
	__asm
	{
		MOV		AX, 0x00
		INT		MOUSEINT
		MOV		_AX, AX
		MOV		_BX, BX
	}

	//
	//-----------------------------------------------
	// AX will be zero if error, 0xFFFF if ok.
	// BX is the number of buttons.
	//-----------------------------------------------
	//
	if (_AX == 0xFFFF)
	{
		ButtonCount = _BX;
		Errors = 0;
	}
	else
	{
		Errors = 1;
		ButtonCount = 0;
	}
	Check_Fpu();
	*/
	Errors = 0;
}

Logical Mouse::TestInstance() const
{
	return True;
}

//
//############################################################################
// ReadCounters - return how many 'mickeys' the mouse has moved
// since the last call
//############################################################################
//
void Mouse::ReadCounters(int *xp, int *yp)
{
	/*
	Check(this);
	Check_Pointer(xp);
	Check_Pointer(yp);

	if (Errors)
	{
		*xp = 0;
		*yp = 0;
	}
	else
	{
		//
		//-----------------------------------------------
		// Read motion counters
		// RETURN:
		// CX = UNSIGNED x counter,
		// DX = UNSIGNED y counter.
		// These must be converted to signed values.
		//-----------------------------------------------
		//
		__int16 a, b;
		__asm
		{
			MOV		AX, 0xB
			INT		MOUSEINT
			MOV		a, CX
			MOV		b, DX
		}
		
		if (a & 0x8000)
		{
			a |= (int)(~65535L);
		}
		if (b & 0x8000)
		{
			b |= (int)(~65535L);
		}

		*xp = a;
		*yp = b;
	}
	Check_Fpu();
	*/
}

//
//############################################################################
// ButtonPressed - return the number of times a given button was pressed
// since the last call
//############################################################################
//
int Mouse::ButtonPressed(int buttonNum)
{
	/*
	Check(this);
	if (Errors)
	{
		return 0;
	}
	else
	{
		//
		//-----------------------------------------------
		// Read button press data
		// RETURN:
		// AX = current button states
		// BX = number of times pressed since last call
		//-----------------------------------------------
		//
		__int16 retVal;
		__int16 _BX = buttonNum;
		_asm
		{
			MOV		AX, 0x05
			MOV		BX, _BX
			INT		MOUSEINT
			MOV		retVal, BX
		}
		
		return retVal;
	}
	*/
	return 0;
}

//
//############################################################################
// ButtonReleased - return the number of times a given button was released
// since the last call
//############################################################################
//
int Mouse::ButtonReleased(int buttonNum)
{
	/*
	Check(this);
	if (Errors)
	{
		return 0;
	}
	else
	{
		//
		//-----------------------------------------------
		// Read button press data
		// RETURN:
		// AX = current button states
		// BX = number of times pressed since last call
		//-----------------------------------------------
		//
		__int16 retVal;
		__int16 _BX = buttonNum;
		_asm
		{
			MOV		AX, 0x06
			MOV		BX, _BX
			INT		MOUSEINT
			MOV		retVal, BX
		}

		return retVal;
	}
	*/
	return 0;
}