diff options
| -rw-r--r-- | Makefile | 4 | ||||
| -rw-r--r-- | Readme.md | 2 | ||||
| -rw-r--r-- | main.c | 29 |
3 files changed, 23 insertions, 12 deletions
@@ -1,10 +1,10 @@ CC = /usr/bin/gcc CFLAGS = -Wall -g -LDFLAGS = +LDFLAGS = -lm OUTPUT = bitmap BUILDDIR = build -FILE = 02 +FILE = a OBJ = main.o @@ -1,3 +1,3 @@ # AsciiMap -Converts windows BitMap files to ASCII +Converts 24bit Windows BitMap files to ASCII @@ -1,6 +1,7 @@ #include <stdio.h> #include <stdlib.h> #include <stdint.h> +#include <math.h> #define _HEADER_SIZE 54 //Fileheader + infoheader @@ -10,6 +11,7 @@ #define BF_TYPE 0x00 #define BF_SIZE 0x02 #define BF_OFF_BITS 0x0a + #define BI_SIZE 0x0e #define BI_WIDTH 0x12 #define BI_HEIGHT 0x16 @@ -22,8 +24,8 @@ #define CHAR_SIZE_X 2 //How many pixels should form one ASCII char? #define CHAR_SIZE_Y (2 * CHAR_SIZE_X) -const char map[] = {' ', ' ', '.', ',', '`', '-', '~', '"', '*', ':', ';', '<', '!', '/','?', '%', '&', '=', '$', '#'}; -//const char map[] = {'`', '.', ',', ':', ';', '\'', '+', '#', '@'}; +const char map[] = {' ', ' ', '.', ',', '`', '-', '~', '"', '*', ':', ';', '<', '!', '/', '?', '%', '&', '=', '$', '#'}; +//const char map[] = {' ', '`', '.', ',', ':', ';', '\'', '+', '#', '@'}; //Routine for flipping bytes uint32_t flip(unsigned char* _v, int _c); @@ -120,6 +122,11 @@ int main(int argc, char *argv[]) printf("Compression not supported.\n"); return 1; } + if(biClrUsed != 0) + { + printf("Colortable not supported.\n"); + return 1; + } //Read to start of Pixel block //This block contains Colormasks and Colortables. @@ -155,6 +162,9 @@ int main(int argc, char *argv[]) for(int col = 0; col < biWidth; col++) fread(&bitmap_buff[row][col], 1, 3, bitmap); + for(int i = 0; i < row_size - (biWidth * 3); i++) //read excess NULL-Bytes + fgetc(bitmap); + read_counter += row_size; } @@ -238,8 +248,8 @@ int main(int argc, char *argv[]) fclose(out); return 0; -} -//One pixel is 3Byte, One line is multiple of 4Bytes +}//main + uint32_t flip(unsigned char* _v, int _c) { uint32_t ret = 0; @@ -262,7 +272,6 @@ char avg(int argc, char *argv) for(int i = 0; i < argc; i++) sum += (uint64_t)argv[i]; - ret = (char)(sum / argc); return ret; @@ -271,15 +280,17 @@ char avg(int argc, char *argv) char calc_char(uint8_t _c , uint8_t _min, uint8_t _max) { float c = (float)(_c) / (_max - _min); - return map [(int)((sizeof(map)-1) * (1-c)) ]; + return map [(int)((sizeof(map)-1) * (c))]; } char rgb_avg(uint32_t *arg) { char ret; uint32_t R = (*arg & 0xff0000)>>16;; - uint32_t G = (*arg & 0xff00)>>8; - uint32_t B = *arg & 0xff; - ret = (char)(R+R+B+G+G+G)/6; + uint32_t G = (*arg & 0x00ff00)>>8; + uint32_t B = *arg & 0x0000ff; + + ret = sqrt( 0.299*pow(R,2) + 0.587*pow(G,2) + 0.114*pow(B,2) ); //(char)(R+R+B+G+G+G)/6; + return ret; } |