/* ----------------------------------------------------------------------------
 *     SAM Software Package License
 * ----------------------------------------------------------------------------
 * Copyright (c) 2011, Atmel Corporation
 *
 * 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 disclaimer below.
 *
 * Atmel's name may not be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
 * DISCLAIMED. IN NO EVENT SHALL ATMEL 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,
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 * ----------------------------------------------------------------------------
 */

/**
 * \file
 *
 * Implementation of draw font on LCD.
 *
 */

/*----------------------------------------------------------------------------
 *        Headers
 *----------------------------------------------------------------------------*/

#include "board.h"

#include <stdint.h>
#include <assert.h>

/*----------------------------------------------------------------------------
 *        Local variables
 *----------------------------------------------------------------------------*/

/** Global variable describing the font being instancied. */
const Font gFont = {10, 14};

/*----------------------------------------------------------------------------
 *        Exported functions
 *----------------------------------------------------------------------------*/

/**
 * \brief Draws an ASCII character on LCD.
 *
 * \param x  X-coordinate of character upper-left corner.
 * \param y  Y-coordinate of character upper-left corner.
 * \param c  Character to output.
 * \param color  Character color.
 */
extern void LCDD_DrawChar( uint32_t x, uint32_t y, uint8_t c, uint32_t color )
{
    uint32_t row, col ;

    assert( (c >= 0x20) && (c <= 0x7F) ) ;

    for ( col = 0 ; col < 10 ; col++ )
    {
        for ( row = 0 ; row < 8 ; row++ )
        {
            if ( (pCharset10x14[((c - 0x20) * 20) + col * 2] >> (7 - row)) & 0x1 )
            {
                LCDD_DrawPixel( x+col, y+row, color ) ;
            }
        }

        for (row = 0; row < 6; row++ )
        {
            if ((pCharset10x14[((c - 0x20) * 20) + col * 2 + 1] >> (7 - row)) & 0x1)
            {
                LCDD_DrawPixel( x+col, y+row+8, color ) ;
            }
        }
    }
}

/**
 * \brief Draws a string inside a LCD buffer, at the given coordinates.
 * Line breaks will be honored.
 *
 * \param dwX      X-coordinate of string top-left corner.
 * \param dwY      Y-coordinate of string top-left corner.
 * \param pString  String to display.
 */
extern void LCD_DrawString( uint32_t dwX, uint32_t dwY, const uint8_t *pString, uint32_t color )
{
    uint32_t dwXorg = dwX ;

    while ( *pString != 0 )
    {
        if ( *pString == '\n' )
        {
            dwY += gFont.height + 2 ;
            dwX = dwXorg ;
        }
        else
        {
            LCDD_DrawChar( dwX, dwY, *pString, color ) ;
            dwX += gFont.width + 2 ;
        }

        pString++ ;
    }
}

/**
 * \brief Draws an ASCII character on LCD with given background color.
 *
 * \param x          X-coordinate of character upper-left corner.
 * \param y          Y-coordinate of character upper-left corner.
 * \param c          Character to output.
 * \param fontColor  Character color.
 * \param bgColor    Background color.
 */
extern void LCDD_DrawCharWithBGColor( uint32_t x, uint32_t y, uint8_t c, uint32_t fontColor, uint32_t bgColor )
{
    uint32_t row, col ;

    assert( (c >= 0x20) && (c <= 0x7F) ) ;

    for (col = 0; col < 10; col++)
    {
        for (row = 0 ; row < 8 ; row++)
        {
            if ( (pCharset10x14[((c - 0x20) * 20) + col * 2] >> (7 - row)) & 0x1 )
            {
                LCDD_DrawPixel( x+col, y+row, fontColor ) ;
            }
            else
            {
                LCDD_DrawPixel( x+col, y+row, bgColor ) ;
            }
        }

        for ( row = 0 ; row < 6 ; row++ )
        {
            if ( (pCharset10x14[((c - 0x20) * 20) + col * 2 + 1] >> (7 - row)) & 0x1 )
            {
                LCDD_DrawPixel( x+col, y+row+8, fontColor ) ;
            }
            else
            {
                LCDD_DrawPixel( x+col, y+row+8, bgColor ) ;
            }
        }
    }
}