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/***************************************************************************

    osdepend.h

    OS-dependent code interface.

****************************************************************************

    Copyright Aaron Giles
    All rights reserved.

    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions are
    met:

        * Redistributions of source code must retain the above copyright
          notice, this list of conditions and the following disclaimer.
        * Redistributions in binary form must reproduce the above copyright
          notice, this list of conditions and the following disclaimer in
          the documentation and/or other materials provided with the
          distribution.
        * Neither the name 'MAME' nor the names of its contributors may be
          used to endorse or promote products derived from this software
          without specific prior written permission.

    THIS SOFTWARE IS PROVIDED BY AARON GILES ''AS IS'' AND ANY EXPRESS OR
    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    DISCLAIMED. IN NO EVENT SHALL AARON GILES BE LIABLE FOR ANY DIRECT,
    INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
    SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
    STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
    IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    POSSIBILITY OF SUCH DAMAGE.

*******************************************************************c********/

#pragma once

#ifndef __OSDEPEND_H__
#define __OSDEPEND_H__

#include "emucore.h"
#include "osdcore.h"
#include "unicode.h"


//**************************************************************************
//  TYPE DEFINITIONS
//**************************************************************************

// forward references
class input_type_desc;
class device_t;
typedef void *osd_font;


// ======================> osd_interface

// description of the currently-running machine
class osd_interface
{
public:
	// construction/destruction
	osd_interface();
	virtual ~osd_interface();

	// getters
	running_machine &machine() const { assert(m_machine != NULL); return *m_machine; }

	// general overridables
	virtual void init(running_machine &machine);
	virtual void update(bool skip_redraw);

	// debugger overridables
	virtual void init_debugger();
	virtual void wait_for_debugger(device_t &device, bool firststop);

	// audio overridables
	virtual void update_audio_stream(const INT16 *buffer, int samples_this_frame);
	virtual void set_mastervolume(int attenuation);

	// input overridables
	virtual void customize_input_type_list(input_type_desc *typelist);

	// font overridables
	virtual osd_font font_open(const char *name, int &height);
	virtual void font_close(osd_font font);
	virtual bitmap_t *font_get_bitmap(osd_font font, unicode_char chnum, INT32 &width, INT32 &xoffs, INT32 &yoffs);

private:
	// internal state
	running_machine *	m_machine;
};


#endif	/* __OSDEPEND_H__ */