add arduino code

2.7inch_e-paper_code/RaspberryPi/bcm2835/obj/GUI_BMPfile.h

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+/*****************************************************************************
+* | File      	:   GUI_BMPfile.h
+* | Author      :   Waveshare team
+* | Function    :   Hardware underlying interface
+* | Info        :
+*                Used to shield the underlying layers of each master
+*                and enhance portability
+*----------------
+* |	This version:   V2.0
+* | Date        :   2018-11-12
+* | Info        :   
+* 1.Change file name: GUI_BMP.h -> GUI_BMPfile.h
+* 2.fix: GUI_ReadBmp()
+*   Now Xstart and Xstart can control the position of the picture normally, 
+*   and support the display of images of any size. If it is larger than 
+*   the actual display range, it will not be displayed.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documnetation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to  whom the Software is
+# furished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+******************************************************************************/
+#ifndef __GUI_BMPFILE_H
+#define __GUI_BMPFILE_H
+
+#include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdint.h>
+
+#include "DEV_Config.h"
+
+/*Bitmap file header   14bit*/
+typedef struct BMP_FILE_HEADER {
+    UWORD bType;        //File identifier
+    UDOUBLE bSize;      //The size of the file
+    UWORD bReserved1;   //Reserved value, must be set to 0
+    UWORD bReserved2;   //Reserved value, must be set to 0
+    UDOUBLE bOffset;    //The offset from the beginning of the file header to the beginning of the image data bit
+} __attribute__ ((packed)) BMPFILEHEADER;    // 14bit
+
+/*Bitmap information header  40bit*/
+typedef struct BMP_INFO {
+    UDOUBLE biInfoSize;      //The size of the header
+    UDOUBLE biWidth;         //The width of the image
+    UDOUBLE biHeight;        //The height of the image
+    UWORD biPlanes;          //The number of planes in the image
+    UWORD biBitCount;        //The number of bits per pixel
+    UDOUBLE biCompression;   //Compression type
+    UDOUBLE bimpImageSize;   //The size of the image, in bytes
+    UDOUBLE biXPelsPerMeter; //Horizontal resolution
+    UDOUBLE biYPelsPerMeter; //Vertical resolution
+    UDOUBLE biClrUsed;       //The number of colors used
+    UDOUBLE biClrImportant;  //The number of important colors
+} __attribute__ ((packed)) BMPINFOHEADER;
+
+/*Color table: palette */
+typedef struct RGB_QUAD {
+    UBYTE rgbBlue;               //Blue intensity
+    UBYTE rgbGreen;              //Green strength
+    UBYTE rgbRed;                //Red intensity
+    UBYTE rgbReversed;           //Reserved value
+} __attribute__ ((packed)) BMPRGBQUAD;
+/**************************************** end ***********************************************/
+
+UBYTE GUI_ReadBmp(const char *path, UWORD Xstart, UWORD Ystart);
+#endif