/* ----------------------------------------------------------------------------
 *         ATMEL Microcontroller Software Support
 * ----------------------------------------------------------------------------
 * Copyright (c) 2008, 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,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * ----------------------------------------------------------------------------
 */

/**
 *  \file
 *  \section Purpose
 *
 *  Utility for BMP
 *
 */

#ifndef BMP_H
#define BMP_H

/**  BMP magic number ('BM'). */
#define BMP_TYPE       0x4D42

/**  headerSize must be set to 40 */
#define BITMAPINFOHEADER   40

/*------------------------------------------------------------------------------
 *         Exported types
 *------------------------------------------------------------------------------*/

#pragma pack( 1 )

/** BMP (Windows) Header Format */
typedef struct _BMPHeader
{
    /*  signature, must be 4D42 hex */
    uint16_t type;
    /*  size of BMP file in bytes (unreliable) */
    uint32_t fileSize;
    /*  reserved, must be zero */
    uint16_t reserved1;
    /*  reserved, must be zero */
    uint16_t reserved2;
    /*  offset to start of image data in bytes */
    uint32_t offset;
    /*  size of BITMAPINFOHEADER structure, must be 40 */
    uint32_t headerSize;
    /*  image width in pixels */
    uint32_t width;
    /*  image height in pixels */
    uint32_t height;
    /*  number of planes in the image, must be 1 */
    uint16_t planes;
    /*  number of bits per pixel (1, 4, 8, 16, 24, 32) */
    uint16_t bits;
    /*  compression type (0=none, 1=RLE-8, 2=RLE-4) */
    uint32_t compression;
    /*  size of image data in bytes (including padding) */
    uint32_t imageSize;
    /*  horizontal resolution in pixels per meter (unreliable) */
    uint32_t xresolution;
    /*  vertical resolution in pixels per meter (unreliable) */
    uint32_t yresolution;
    /*  number of colors in image, or zero */
    uint32_t ncolours;
    /*  number of important colors, or zero */
    uint32_t importantcolours;

} BMPHeader;

#pragma pack()

/*------------------------------------------------------------------------------
 *         Exported functions
 *------------------------------------------------------------------------------*/
extern uint8_t BMP_IsValid(void *file);
extern uint32_t BMP_GetFileSize(void *file);
extern uint8_t BMP_Decode( void *file, uint8_t *buffer, uint32_t width, uint32_t height, uint8_t bpp );
extern void WriteBMPheader( uint32_t* pAddressHeader, uint32_t  bmpHSize, uint32_t  bmpVSize, uint8_t nbByte_Pixels );
extern void BMP_displayHeader(uint32_t* pAddressHeader);
extern void RGB565toBGR555( uint8_t *fileSource, uint8_t *fileDestination, uint32_t width, uint32_t height, uint8_t bpp );

#endif //#ifndef BMP_H