bmp.h

00001 /* ----------------------------------------------------------------------------
00002  *         ATMEL Microcontroller Software Support  -  ROUSSET  -
00003  * ----------------------------------------------------------------------------
00004  * Copyright (c) 2006, Atmel Corporation
00005 
00006  * All rights reserved.
00007  * 
00008  * Redistribution and use in source and binary forms, with or without
00009  * modification, are permitted provided that the following conditions are met:
00010  * 
00011  * - Redistributions of source code must retain the above copyright notice,
00012  * this list of conditions and the disclaiimer below.
00013  * 
00014  * - Redistributions in binary form must reproduce the above copyright notice,
00015  * this list of conditions and the disclaimer below in the documentation and/or
00016  * other materials provided with the distribution. 
00017  * 
00018  * Atmel's name may not be used to endorse or promote products derived from
00019  * this software without specific prior written permission. 
00020  * 
00021  * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
00022  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
00023  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
00024  * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
00025  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
00026  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
00027  * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00028  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00029  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
00030  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00031  * ----------------------------------------------------------------------------
00032  */
00033 
00034 #ifndef BMP_H
00035 #define BMP_H
00036 
00037 //------------------------------------------------------------------------------
00038 //         Exported types
00039 //------------------------------------------------------------------------------
00040 
00041 struct BMPHeader {
00042 
00043     unsigned short type;
00044     unsigned int fileSize;
00045     unsigned short reserved1;
00046     unsigned short reserved2;
00047     unsigned int offset;
00048     unsigned int headerSize;
00049     unsigned int width;
00050     unsigned int height;
00051     unsigned short planes;
00052     unsigned short bits;
00053     unsigned int compression;
00054     unsigned int imageSize;
00055     unsigned int xresolution;
00056     unsigned int yresolution;
00057     unsigned int ncolours;
00058     unsigned int importantcolours;
00059 
00060 } __attribute__ ((packed));
00061 
00062 //------------------------------------------------------------------------------
00063 //         Exported functions
00064 //------------------------------------------------------------------------------
00065 
00066 extern unsigned char BMP_IsValid(void *file);
00067 
00068 extern unsigned int BMP_GetFileSize(void *file);
00069 
00070 extern unsigned char BMP_Decode(
00071     void *file,
00072     unsigned char *buffer,
00073     unsigned int width,
00074     unsigned int height,
00075     unsigned char bpp);
00076 
00077 #endif //#ifndef BMP_H
00078 
00079 
00080