Yoshihiro Michimoto / Mbed OS GR-PEACH_Camera_in

test

Dependencies:   GR-PEACH_video USBHost USBHost_custom

Fork of GR-PEACH_Camera_in by Renesas

bitmap.h@4:23d1c6e5bca2, 2017-04-18 (annotated)

Committer:
ymichimoto
Date:
Tue Apr 18 05:34:33 2017 +0000
Revision:
4:23d1c6e5bca2
Parent:
0:2f1caf4ce924 
test

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dkato 0:2f1caf4ce924 1 /** @file bitmap.h */
dkato 0:2f1caf4ce924 2 #include "mbed.h"
dkato 0:2f1caf4ce924 3
dkato 0:2f1caf4ce924 4 /** A class to communicate a bitmap
dkato 0:2f1caf4ce924 5 *
dkato 0:2f1caf4ce924 6 */
dkato 0:2f1caf4ce924 7 class bitmap {
dkato 0:2f1caf4ce924 8 public:
dkato 0:2f1caf4ce924 9
dkato 0:2f1caf4ce924 10 /** convert RGB888 to bitmap
dkato 0:2f1caf4ce924 11 *
dkato 0:2f1caf4ce924 12 * @param file_name save file name
dkato 0:2f1caf4ce924 13 * @param buf data buffer address
dkato 0:2f1caf4ce924 14 * @param pic_width picture width
dkato 0:2f1caf4ce924 15 * @param pic_height picture height
dkato 0:2f1caf4ce924 16 * @return save data size
dkato 0:2f1caf4ce924 17 */
dkato 0:2f1caf4ce924 18 int Rgb888ToBmp(char * file_name, uint8_t * buf, unsigned long pic_width, unsigned long pic_height) {
dkato 0:2f1caf4ce924 19 unsigned long offset_size = 54;
dkato 0:2f1caf4ce924 20 unsigned long buf_stride = (((pic_width * 4u) + 31u) & ~31u);
dkato 0:2f1caf4ce924 21 unsigned long pic_size = buf_stride * pic_height;
dkato 0:2f1caf4ce924 22 unsigned long file_size = 0;
dkato 0:2f1caf4ce924 23 int save_file_size = 0;
dkato 0:2f1caf4ce924 24 int write_index = (buf_stride * pic_height) - buf_stride;
dkato 0:2f1caf4ce924 25 unsigned long cnt;
dkato 0:2f1caf4ce924 26 uint8_t wk_bitmap_buf[16];
dkato 0:2f1caf4ce924 27 FILE * fp = fopen(file_name, "w");
dkato 0:2f1caf4ce924 28
dkato 0:2f1caf4ce924 29 if (fp != NULL) {
dkato 0:2f1caf4ce924 30 file_size = pic_size + offset_size;
dkato 0:2f1caf4ce924 31
dkato 0:2f1caf4ce924 32 /* BITMAPFILEHEADER */
dkato 0:2f1caf4ce924 33 wk_bitmap_buf[0] = 'B';
dkato 0:2f1caf4ce924 34 wk_bitmap_buf[1] = 'M';
dkato 0:2f1caf4ce924 35 wk_bitmap_buf[2] = (unsigned char)(file_size >> 0); /* bfSize */
dkato 0:2f1caf4ce924 36 wk_bitmap_buf[3] = (unsigned char)(file_size >> 8); /* bfSize */
dkato 0:2f1caf4ce924 37 wk_bitmap_buf[4] = (unsigned char)(file_size >> 16); /* bfSize */
dkato 0:2f1caf4ce924 38 wk_bitmap_buf[5] = (unsigned char)(file_size >> 24); /* bfSize */
dkato 0:2f1caf4ce924 39 wk_bitmap_buf[6] = 0; /* bfReserved1 */
dkato 0:2f1caf4ce924 40 wk_bitmap_buf[7] = 0; /* bfReserved1 */
dkato 0:2f1caf4ce924 41 wk_bitmap_buf[8] = 0; /* bfReserved2 */
dkato 0:2f1caf4ce924 42 wk_bitmap_buf[9] = 0; /* bfReserved2 */
dkato 0:2f1caf4ce924 43 wk_bitmap_buf[10] = (unsigned char)(offset_size >> 0); /* bfOffBits */
dkato 0:2f1caf4ce924 44 wk_bitmap_buf[11] = (unsigned char)(offset_size >> 8); /* bfOffBits */
dkato 0:2f1caf4ce924 45 wk_bitmap_buf[12] = (unsigned char)(offset_size >> 16); /* bfOffBits */
dkato 0:2f1caf4ce924 46 wk_bitmap_buf[13] = (unsigned char)(offset_size >> 24); /* bfOffBits */
dkato 0:2f1caf4ce924 47 fwrite(wk_bitmap_buf, sizeof(char), 14, fp);
dkato 0:2f1caf4ce924 48
dkato 0:2f1caf4ce924 49 /* BITMAPINFOHEADER */
dkato 0:2f1caf4ce924 50 wk_bitmap_buf[0] = 40; /* biSize */
dkato 0:2f1caf4ce924 51 wk_bitmap_buf[1] = 0; /* biSize */
dkato 0:2f1caf4ce924 52 wk_bitmap_buf[2] = 0; /* biSize */
dkato 0:2f1caf4ce924 53 wk_bitmap_buf[3] = 0; /* biSize */
dkato 0:2f1caf4ce924 54 wk_bitmap_buf[4] = (unsigned char)(pic_width >> 0); /* biWidth */
dkato 0:2f1caf4ce924 55 wk_bitmap_buf[5] = (unsigned char)(pic_width >> 8); /* biWidth */
dkato 0:2f1caf4ce924 56 wk_bitmap_buf[6] = (unsigned char)(pic_width >> 16); /* biWidth */
dkato 0:2f1caf4ce924 57 wk_bitmap_buf[7] = (unsigned char)(pic_width >> 24); /* biWidth */
dkato 0:2f1caf4ce924 58 wk_bitmap_buf[8] = (unsigned char)(pic_height >> 0); /* biHeight */
dkato 0:2f1caf4ce924 59 wk_bitmap_buf[9] = (unsigned char)(pic_height >> 8); /* biHeight */
dkato 0:2f1caf4ce924 60 wk_bitmap_buf[10] = (unsigned char)(pic_height >> 16); /* biHeight */
dkato 0:2f1caf4ce924 61 wk_bitmap_buf[11] = (unsigned char)(pic_height >> 24); /* biHeight */
dkato 0:2f1caf4ce924 62 wk_bitmap_buf[12] = 1; /* biPlanes */
dkato 0:2f1caf4ce924 63 wk_bitmap_buf[13] = 0; /* biPlanes */
dkato 0:2f1caf4ce924 64 wk_bitmap_buf[14] = 32; /* biBitCount */
dkato 0:2f1caf4ce924 65 wk_bitmap_buf[15] = 0; /* biBitCount */
dkato 0:2f1caf4ce924 66 fwrite(wk_bitmap_buf, sizeof(char), 16, fp);
dkato 0:2f1caf4ce924 67
dkato 0:2f1caf4ce924 68 wk_bitmap_buf[0] = 0; /* biCopmression */
dkato 0:2f1caf4ce924 69 wk_bitmap_buf[1] = 0; /* biCopmression */
dkato 0:2f1caf4ce924 70 wk_bitmap_buf[2] = 0; /* biCopmression */
dkato 0:2f1caf4ce924 71 wk_bitmap_buf[3] = 0; /* biCopmression */
dkato 0:2f1caf4ce924 72 wk_bitmap_buf[4] = (unsigned char)(pic_size >> 0); /* biSizeImage */
dkato 0:2f1caf4ce924 73 wk_bitmap_buf[5] = (unsigned char)(pic_size >> 8); /* biSizeImage */
dkato 0:2f1caf4ce924 74 wk_bitmap_buf[6] = (unsigned char)(pic_size >> 16); /* biSizeImage */
dkato 0:2f1caf4ce924 75 wk_bitmap_buf[7] = (unsigned char)(pic_size >> 24); /* biSizeImage */
dkato 0:2f1caf4ce924 76 wk_bitmap_buf[8] = 0; /* biXPixPerMeter */
dkato 0:2f1caf4ce924 77 wk_bitmap_buf[9] = 0; /* biXPixPerMeter */
dkato 0:2f1caf4ce924 78 wk_bitmap_buf[10] = 0; /* biXPixPerMeter */
dkato 0:2f1caf4ce924 79 wk_bitmap_buf[11] = 0; /* biXPixPerMeter */
dkato 0:2f1caf4ce924 80 wk_bitmap_buf[12] = 0; /* biYPixPerMeter */
dkato 0:2f1caf4ce924 81 wk_bitmap_buf[13] = 0; /* biYPixPerMeter */
dkato 0:2f1caf4ce924 82 wk_bitmap_buf[14] = 0; /* biYPixPerMeter */
dkato 0:2f1caf4ce924 83 wk_bitmap_buf[15] = 0; /* biYPixPerMeter */
dkato 0:2f1caf4ce924 84 fwrite(wk_bitmap_buf, sizeof(char), 16, fp);
dkato 0:2f1caf4ce924 85
dkato 0:2f1caf4ce924 86 wk_bitmap_buf[0] = 0; /* biClrUsed */
dkato 0:2f1caf4ce924 87 wk_bitmap_buf[1] = 0; /* biClrUsed */
dkato 0:2f1caf4ce924 88 wk_bitmap_buf[2] = 0; /* biClrUsed */
dkato 0:2f1caf4ce924 89 wk_bitmap_buf[3] = 0; /* biClrUsed */
dkato 0:2f1caf4ce924 90 wk_bitmap_buf[4] = 0; /* biCirImportant */
dkato 0:2f1caf4ce924 91 wk_bitmap_buf[5] = 0; /* biCirImportant */
dkato 0:2f1caf4ce924 92 wk_bitmap_buf[6] = 0; /* biCirImportant */
dkato 0:2f1caf4ce924 93 wk_bitmap_buf[7] = 0; /* biCirImportant */
dkato 0:2f1caf4ce924 94 fwrite(wk_bitmap_buf, sizeof(char), 8, fp);
dkato 0:2f1caf4ce924 95
dkato 0:2f1caf4ce924 96 save_file_size = 54;
dkato 0:2f1caf4ce924 97 for (cnt = 0; cnt < pic_height; cnt ++) {
dkato 0:2f1caf4ce924 98 save_file_size += fwrite(&buf[write_index], sizeof(char), buf_stride, fp);
dkato 0:2f1caf4ce924 99 write_index -= buf_stride;
dkato 0:2f1caf4ce924 100 }
dkato 0:2f1caf4ce924 101 fclose(fp);
dkato 0:2f1caf4ce924 102 }
dkato 0:2f1caf4ce924 103
dkato 0:2f1caf4ce924 104 return (int)save_file_size;
dkato 0:2f1caf4ce924 105 };
dkato 0:2f1caf4ce924 106 };