From 57b73d286ad68a71547cdfbb31c772fb46c96c67 Mon Sep 17 00:00:00 2001 From: Jonas Gunz Date: Wed, 29 Jul 2020 00:46:16 +0200 Subject: rebuilding functions --- src/bitmap.c | 98 ++++++++++++++++++++++++++++++++++++++++++++++-------------- src/bitmap.h | 66 ++++++++++++++++++++++------------------ src/color.c | 1 + src/main.c | 15 ++++++---- 4 files changed, 123 insertions(+), 57 deletions(-) (limited to 'src') diff --git a/src/bitmap.c b/src/bitmap.c index a987e25..c64a4c0 100644 --- a/src/bitmap.c +++ b/src/bitmap.c @@ -1,6 +1,20 @@ +/* + * src/bitmap.c + * (c) 2020 Jonas Gunz + * License: MIT +*/ + #include "bitmap.h" -uint32_t bitmap_flip_byte(unsigned char* _v, int _c) +static struct bitmap_file_header bitmap_read_file_header(FILE *_file); + +static struct bitmap_image bitmap_read_pixel_data(FILE *_file, struct bitmap_file_header _header); + +static uint32_t bitmap_flip_byte(unsigned char* _v, int _c); + +static uint8_t bitmap_rgb_luminance(uint8_t R, uint8_t G, uint8_t B); + +static uint32_t bitmap_flip_byte(unsigned char* _v, int _c) { uint32_t ret = 0; uint32_t counter = (_c-1) * 8; @@ -14,45 +28,43 @@ uint32_t bitmap_flip_byte(unsigned char* _v, int _c) return ret; }//flip -struct bitmap_pixel_data bitmap_read(char *_file) +int bitmap_read(char *_file, struct bitmap_image *_bitmap) { - struct bitmap_pixel_data ret; - struct bitmap_file_header header; + if (!_bitmap ) + return 5; - ret.R = ret.G = ret.B = NULL; - ret.error = 1; + struct bitmap_file_header header; + _bitmap->tags = 0x00; - FILE *bitmap; + FILE *input_file; if(_file) - bitmap = fopen(_file,"rb"); + input_file = fopen(_file,"rb"); else - bitmap = stdin; + input_file = stdin; - if(!bitmap) - return ret; + if(!input_file) + return 1; - header = bitmap_read_file_header(bitmap); + header = bitmap_read_file_header(input_file); if(header.error) - return ret; + return 2; if(header.biBitCount != 24) - return ret; + return 3; if(header.biCompression != 0) - return ret; - - ret = bitmap_read_pixel_data(bitmap, header); + return 4; + *_bitmap = bitmap_read_pixel_data(input_file, header); free(header.tables); - fclose(bitmap); + fclose(input_file); - ret.error = 0; - return ret; + return 0; } -struct bitmap_file_header bitmap_read_file_header(FILE *_file) +static struct bitmap_file_header bitmap_read_file_header(FILE *_file) { struct bitmap_file_header ret; unsigned char fileheader[_HEADER_SIZE]; @@ -95,11 +107,11 @@ struct bitmap_file_header bitmap_read_file_header(FILE *_file) return ret; } -struct bitmap_pixel_data bitmap_read_pixel_data(FILE *_file, struct bitmap_file_header _header) +static struct bitmap_image bitmap_read_pixel_data(FILE *_file, struct bitmap_file_header _header) { uint32_t **bitmap_buff; - struct bitmap_pixel_data ret; + struct bitmap_image ret; uint32_t row_size = _header.biWidth * 3; while(row_size%4) @@ -162,3 +174,43 @@ struct bitmap_pixel_data bitmap_read_pixel_data(FILE *_file, struct bitmap_file_ return ret; } + +int bitmap_copy ( struct bitmap_image *_input, struct bitmap_image *_output ) { + return 1; +} + +int bitmap_convert_monochrome ( struct bitmap_image *_input, struct bitmap_image *_output ) { + if ( !_input || !_output ) + return 1; + + uint8_t **monochrome_bitmap = malloc( sizeof (*monochrome_bitmap) * _input->x ); + for ( int i = 0; i < _input->y; i++ ) { + monochrome_bitmap[i] = malloc ( sizeof (**monochrome_bitmap) * _input->y ); + } + + for ( unsigned int x = 0; x < _input->x; x++ ) { + for ( unsigned int y = 0; y < _input->y; y++ ) { + monochrome_bitmap[x][y] = bitmap_rgb_luminance ( + _input->R[x][y], + _input->G[x][y], + _input->B[x][y] ); + } + } + + _output->R = _output->G = _output->B = monochrome_bitmap; + + return 0; +} + +int bitmap_transform ( struct bitmap_image *_input, struct bitmap_image *_output ) { + return 1; +} + +static uint8_t bitmap_rgb_luminance(uint8_t R, uint8_t G, uint8_t B) +{ + uint8_t ret; + + 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; +} diff --git a/src/bitmap.h b/src/bitmap.h index d222ffb..3b942a7 100644 --- a/src/bitmap.h +++ b/src/bitmap.h @@ -1,9 +1,16 @@ +/* + * src/bitmap.h + * (c) 2020 Jonas Gunz + * License: MIT +*/ + #ifndef _BITMAP_H_ #define _BITMAP_H_ #include #include #include +#include #define _HEADER_SIZE 54 //Fileheader + infoheader #define IDENTIFIER 0x424d //BM BitMap identifier @@ -26,45 +33,46 @@ #define G(x) (0x00ff00 & x) >> 8 #define B(x) (0x0000ff & x) +#define BITMAP_MONOCHROME 0x01 + struct bitmap_file_header { - uint8_t error; - - uint16_t bfType; - uint32_t bfSize; - uint32_t bfOffBits; - - uint32_t biSize; - int32_t biWidth; - int32_t biHeight; - uint16_t biBitCount; - uint32_t biCompression; - uint32_t biSizeImage; - uint32_t biClrUsed; - uint32_t biClrImportant; - - unsigned char *tables; - uint32_t tablesc; + uint8_t error; + + uint16_t bfType; + uint32_t bfSize; + uint32_t bfOffBits; + + uint32_t biSize; + int32_t biWidth; + int32_t biHeight; + uint16_t biBitCount; + uint32_t biCompression; + uint32_t biSizeImage; + uint32_t biClrUsed; + uint32_t biClrImportant; + + unsigned char *tables; + uint32_t tablesc; }; -struct bitmap_pixel_data +struct bitmap_image { - unsigned int x,y; - uint8_t **R; - uint8_t **G; - uint8_t **B; + unsigned int x,y; - uint8_t error; -}; + uint8_t **R; + uint8_t **G; + uint8_t **B; + uint8_t tags; +}; -uint32_t bitmap_flip_byte(unsigned char* _v, int _c); - -struct bitmap_pixel_data bitmap_read(char *_file); +int bitmap_read ( char *_file, struct bitmap_image *_bitmap ); -struct bitmap_file_header bitmap_read_file_header(FILE *_file); +int bitmap_copy ( struct bitmap_image *_input, struct bitmap_image *_output ); -struct bitmap_pixel_data bitmap_read_pixel_data(FILE *_file, struct bitmap_file_header _header); +int bitmap_convert_monochrome ( struct bitmap_image *_input, struct bitmap_image *_output ); +int bitmap_transform ( struct bitmap_image *_input, struct bitmap_image *_output ); #endif /* end of include guard: _BITMAP_H_ */ diff --git a/src/color.c b/src/color.c index f167016..d0fbe1b 100644 --- a/src/color.c +++ b/src/color.c @@ -63,6 +63,7 @@ char* calc_col(uint8_t R, uint8_t G, uint8_t B) } return colors[ nearest_num ].no; } +//TODO consolidate char* calc_col_ansi(uint8_t R, uint8_t G, uint8_t B) { int num = 36 * (R/51) + 6 * (G/51) + (B/51); diff --git a/src/main.c b/src/main.c index 532b93a..e9e04e3 100644 --- a/src/main.c +++ b/src/main.c @@ -1,3 +1,9 @@ +/* + * src/main.c + * (c) 2020 Jonas Gunz + * License: MIT +*/ + #include #include #include @@ -9,7 +15,7 @@ #include "m.h" #include "color.h" -/* #define CLEANUP 1 */ +// #define CLEANUP 1 #ifdef _DEBUG #warning "Compiling with DEBUG" @@ -50,10 +56,8 @@ int main(int argc, char *argv[]) uint8_t brightness_max = 0x00; uint8_t brightness_min = 0xff; - struct bitmap_pixel_data bitmap; - bitmap = bitmap_read(args.filename); - - if(bitmap.error) { + struct bitmap_image bitmap; + if ( bitmap_read(args.filename, &bitmap) ) { printf("Error reading file\n"); return 1; } @@ -172,6 +176,7 @@ int main(int argc, char *argv[]) DEBUG_PRINTF("Finished!\n"); #ifdef CLEANUP +#warning "Cleanup included" for(int i = 0; i < size_x; i++) free (image_monochrome[i]); free(image_monochrome); -- cgit v1.2.3