Tedd OKANO / Mbed 2 deprecated bmp_8bit_per_pixel_format

Dependencies:   mbed

main.cpp@0:45f5cdf3329b, 2011-01-18 (annotated)

Committer:
okano
Date:
Tue Jan 18 10:19:07 2011 +0000
Revision:
0:45f5cdf3329b
for Andrew-san

Who changed what in which revision?

UserRevisionLine numberNew contents of line
okano 0:45f5cdf3329b 1 #include "mbed.h" // for mbed
okano 0:45f5cdf3329b 2 LocalFileSystem local("local"); // for mbed to access local file system
okano 0:45f5cdf3329b 3
okano 0:45f5cdf3329b 4 /*
okano 0:45f5cdf3329b 5 *
okano 0:45f5cdf3329b 6 * BMP file data handler sample
okano 0:45f5cdf3329b 7 *
okano 0:45f5cdf3329b 8 * reference : http://www.umekkii.jp/data/computer/file_format/bitmap.cgi
okano 0:45f5cdf3329b 9 *
okano 0:45f5cdf3329b 10 */
okano 0:45f5cdf3329b 11
okano 0:45f5cdf3329b 12 #include <stdio.h>
okano 0:45f5cdf3329b 13
okano 0:45f5cdf3329b 14 //#define SOURCE_FILE "/local/small.bmp"
okano 0:45f5cdf3329b 15 #define SOURCE_FILE "/local/pre4.bmp"
okano 0:45f5cdf3329b 16 //#define SOURCE_FILE "pre_dsp_4.bmp"
okano 0:45f5cdf3329b 17
okano 0:45f5cdf3329b 18 #define BUFFER_SIZE 1024
okano 0:45f5cdf3329b 19
okano 0:45f5cdf3329b 20 typedef struct bmp_header_st {
okano 0:45f5cdf3329b 21 unsigned short bfType __attribute__((packed));
okano 0:45f5cdf3329b 22 unsigned long bfSize __attribute__((packed));
okano 0:45f5cdf3329b 23 unsigned short bfReserved1 __attribute__((packed));
okano 0:45f5cdf3329b 24 unsigned short bfReserved2 __attribute__((packed));
okano 0:45f5cdf3329b 25 unsigned long bfOffBits __attribute__((packed));
okano 0:45f5cdf3329b 26
okano 0:45f5cdf3329b 27 unsigned long biSize __attribute__((packed));
okano 0:45f5cdf3329b 28 long biWidth __attribute__((packed));
okano 0:45f5cdf3329b 29 long biHeight __attribute__((packed));
okano 0:45f5cdf3329b 30 unsigned short biPlanes __attribute__((packed));
okano 0:45f5cdf3329b 31 unsigned short biBitCount __attribute__((packed));
okano 0:45f5cdf3329b 32 unsigned long biCompression __attribute__((packed));
okano 0:45f5cdf3329b 33 unsigned long biSizeImage __attribute__((packed));
okano 0:45f5cdf3329b 34 long biXPixPerMeter __attribute__((packed));
okano 0:45f5cdf3329b 35 long biYPixPerMeter __attribute__((packed));
okano 0:45f5cdf3329b 36 unsigned long biClrUsed __attribute__((packed));
okano 0:45f5cdf3329b 37 unsigned long biCirImportant __attribute__((packed));
okano 0:45f5cdf3329b 38 }
okano 0:45f5cdf3329b 39 bmp_header;
okano 0:45f5cdf3329b 40
okano 0:45f5cdf3329b 41 typedef struct color_palette_st {
okano 0:45f5cdf3329b 42 unsigned char red;
okano 0:45f5cdf3329b 43 unsigned char green;
okano 0:45f5cdf3329b 44 unsigned char blue;
okano 0:45f5cdf3329b 45 unsigned char dummy;
okano 0:45f5cdf3329b 46 }
okano 0:45f5cdf3329b 47 color_palette;
okano 0:45f5cdf3329b 48
okano 0:45f5cdf3329b 49
okano 0:45f5cdf3329b 50 int main() {
okano 0:45f5cdf3329b 51 unsigned char buffer[ BUFFER_SIZE ];
okano 0:45f5cdf3329b 52 FILE *fs;
okano 0:45f5cdf3329b 53 bmp_header bh;
okano 0:45f5cdf3329b 54 color_palette cp[256];
okano 0:45f5cdf3329b 55 unsigned long readsize;
okano 0:45f5cdf3329b 56 unsigned long i;
okano 0:45f5cdf3329b 57 unsigned long ofset = 0;
okano 0:45f5cdf3329b 58
okano 0:45f5cdf3329b 59 printf( "BMP file access sample\r\n");
okano 0:45f5cdf3329b 60
okano 0:45f5cdf3329b 61 if ( NULL == (fs = fopen( SOURCE_FILE, "rb" )) ) {
okano 0:45f5cdf3329b 62 printf( "file open error when oening file \"%s\"\r\n", SOURCE_FILE );
okano 0:45f5cdf3329b 63 return ( 1 );
okano 0:45f5cdf3329b 64 }
okano 0:45f5cdf3329b 65
okano 0:45f5cdf3329b 66 /*
okano 0:45f5cdf3329b 67 * reading header
okano 0:45f5cdf3329b 68 */
okano 0:45f5cdf3329b 69
okano 0:45f5cdf3329b 70 fread( &bh, sizeof( bh ), 1, fs );
okano 0:45f5cdf3329b 71
okano 0:45f5cdf3329b 72 printf( " bfType : 0x%04X\r\n", bh.bfType );
okano 0:45f5cdf3329b 73 printf( " bfSize : %ld\r\n", bh.bfSize );
okano 0:45f5cdf3329b 74 printf( " bfOffBits : %ld\r\n", bh.bfOffBits );
okano 0:45f5cdf3329b 75 printf( " biSize : %lu\r\n", bh.biSize );
okano 0:45f5cdf3329b 76 printf( " biWidth : %ld\r\n", bh.biWidth );
okano 0:45f5cdf3329b 77 printf( " biHeight : %ld\r\n", bh.biHeight );
okano 0:45f5cdf3329b 78 printf( " biPlanes : %d\r\n", bh.biPlanes );
okano 0:45f5cdf3329b 79 printf( " biBitCount : %d\r\n", bh.biBitCount );
okano 0:45f5cdf3329b 80 printf( " biCompression : %lu\r\n", bh.biCompression );
okano 0:45f5cdf3329b 81 printf( " biSizeImage : %lu\r\n", bh.biSizeImage );
okano 0:45f5cdf3329b 82 printf( " biXPixPerMeter : %ld\r\n", bh.biXPixPerMeter );
okano 0:45f5cdf3329b 83 printf( " biYPixPerMeter : %ld\r\n", bh.biYPixPerMeter );
okano 0:45f5cdf3329b 84 printf( " biClrUsed : %lu\r\n", bh.biClrUsed );
okano 0:45f5cdf3329b 85 printf( " biCirImportant : %lu\r\n", bh.biCirImportant );
okano 0:45f5cdf3329b 86
okano 0:45f5cdf3329b 87 /*
okano 0:45f5cdf3329b 88 * checking header
okano 0:45f5cdf3329b 89 */
okano 0:45f5cdf3329b 90
okano 0:45f5cdf3329b 91 if ( (bh.bfType != 0x4D42)
okano 0:45f5cdf3329b 92 || (bh.bfOffBits != 54 + 256 * sizeof( color_palette ) )
okano 0:45f5cdf3329b 93 || (bh.biBitCount != 8)
okano 0:45f5cdf3329b 94 || (bh.biCompression != 0)
okano 0:45f5cdf3329b 95 ) {
okano 0:45f5cdf3329b 96 printf( "unsupported file format\r\n" );
okano 0:45f5cdf3329b 97 return ( 1 );
okano 0:45f5cdf3329b 98 }
okano 0:45f5cdf3329b 99
okano 0:45f5cdf3329b 100 /*
okano 0:45f5cdf3329b 101 * header information
okano 0:45f5cdf3329b 102 */
okano 0:45f5cdf3329b 103
okano 0:45f5cdf3329b 104 printf( "header read, the image data size is %lu bytes\r\n", bh.bfSize );
okano 0:45f5cdf3329b 105 printf( " the image data size is %lu bytes\r\n", bh.biSizeImage );
okano 0:45f5cdf3329b 106 printf( " horizontal size %lu pixels\r\n", bh.biWidth );
okano 0:45f5cdf3329b 107 printf( " vertical size %lu pixels\r\n", bh.biHeight );
okano 0:45f5cdf3329b 108
okano 0:45f5cdf3329b 109 /*
okano 0:45f5cdf3329b 110 * read color palette
okano 0:45f5cdf3329b 111 */
okano 0:45f5cdf3329b 112
okano 0:45f5cdf3329b 113 for ( i = 0; i < 256; i++ ) {
okano 0:45f5cdf3329b 114 fread( &(cp[i]), sizeof( color_palette ), 1, fs );
okano 0:45f5cdf3329b 115 // printf( "cp 0x%02X : 0x%02X - 0x%02X - 0x%02X\r\n", i, (cp[i]).red, (cp[i]).green, (cp[i]).blue );
okano 0:45f5cdf3329b 116 }
okano 0:45f5cdf3329b 117
okano 0:45f5cdf3329b 118
okano 0:45f5cdf3329b 119 while ( 0 != (readsize = fread( buffer, sizeof( unsigned char ) , BUFFER_SIZE, fs )) ) {
okano 0:45f5cdf3329b 120 for ( i = 0; i < readsize; i++ ) {
okano 0:45f5cdf3329b 121 // printf( " %6lX : 0x%02X, 0x%02X, 0x%02X\r\n", ofset, cp[ buffer[i] ].red, cp[ buffer[i] ].green, cp[ buffer[i] ].blue );
okano 0:45f5cdf3329b 122 ofset++;
okano 0:45f5cdf3329b 123 }
okano 0:45f5cdf3329b 124 }
okano 0:45f5cdf3329b 125
okano 0:45f5cdf3329b 126 printf( "done.\r\n\r\n" );
okano 0:45f5cdf3329b 127 }