driver.h

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#ifndef DRIVER_H_
#define DRIVER_H_

/**
 * File Name: driver.h
 */

/*
 * This file is part of liberscribble.
 *
 * liberscribble 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, either version 2 of the License, or
 * (at your option) any later version.
 *
 * liberscribble 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

/**
 * Copyright (C) 2008 iRex Technologies B.V.
 * All rights reserved.
 */
 

//----------------------------------------------------------------------------
// Include Files
//----------------------------------------------------------------------------

// system include files, between < >
#include <glib.h>

#ifdef ENABLE_DRIVER
#include <sys/time.h>
#endif

// ereader include files, between < >

// local include files, between " "
#include "scbconfig.h"
#include "scbpoint.h"

G_BEGIN_DECLS


//----------------------------------------------------------------------------
// Definitions
//---------------------------------------------------------------------------- 


//----------------------------------------------------------------------------
// Forward Declarations
//----------------------------------------------------------------------------


//----------------------------------------------------------------------------
// Type Declarations
//----------------------------------------------------------------------------

typedef struct _DrvPointInfo
{
    unsigned short x;
    unsigned short y;
    unsigned char  size;
    unsigned char  color;
    unsigned char  pen_down;
} DrvPointInfo;

typedef struct _DrvPointsBuf
{
    unsigned int count;
    DrvPointInfo points [ERSCRIBBLE_DEF_DRIVER_DRAW_BUF_LEN];
} DrvPointsBuf;

typedef DrvPointsBuf * DrvPointsBufPtr;

typedef struct _FastDrawContext
{
#ifdef ENABLE_DRIVER
    struct timeval  t1, t2;         // start end
#endif
    DrvPointsBuf    points;
} FastDrawContext;


//----------------------------------------------------------------------------
// Global Constants
//----------------------------------------------------------------------------


//============================================================================
// Public Functions
//============================================================================

void erscribble_driver_init();
void erscribble_driver_close();

void erscribble_driver_draw_reset_context();

gboolean erscribble_driver_draw_now();

void erscribble_driver_draw_record(const ScbDevPointPtr ptr, 
                                   const unsigned char size, 
                                   const unsigned char color,
                                   const unsigned char pen_down);

void erscribble_driver_draw();

void erscribble_driver_draw_points(DrvPointsBufPtr ptr);

void erscribble_driver_update_display();


G_END_DECLS

#endif