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static private functions and public functions starting with file name

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Klemek
2025-09-24 15:41:41 +02:00
parent 3064501543
commit 8cc23ce9e6
9 changed files with 53 additions and 48 deletions
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src/args.c
+13 -13
View File
@@ -9,7 +9,7 @@
#include "rand.h"
#include "types.h"
void print_help(int status_code) {
static void print_help(int status_code) {
puts(PACKAGE
" " VERSION "\n\n"
"usage: " PACKAGE " "
@@ -48,26 +48,26 @@ void print_help(int status_code) {
exit(status_code);
}
void invalid_arg(char *arg) {
static void invalid_arg(char *arg) {
fprintf(stderr, "invalid argument: '%s'\n\n", arg);
print_help(EXIT_FAILURE);
}
void invalid_value(char *arg, char *value) {
static void invalid_value(char *arg, char *value) {
fprintf(stderr, "invalid value for argument '%s': '%s'\n\n", arg, value);
print_help(EXIT_FAILURE);
}
bool is_arg(char *arg, char *ref) { return strcoll(arg, ref) == 0; }
static bool is_arg(char *arg, char *ref) { return strcoll(arg, ref) == 0; }
char *split_arg_value(char *arg) {
static char *split_arg_value(char *arg) {
strtok(arg, "=");
return strtok(NULL, "=");
}
bool is_digit(char c) { return c >= '0' && c <= '9'; }
static bool is_digit(char c) { return c >= '0' && c <= '9'; }
bool is_number(char *value) {
static bool is_number(char *value) {
if (value == NULL) {
return false;
}
@@ -81,7 +81,7 @@ bool is_number(char *value) {
return true;
}
unsigned char parse_char(char *arg, char *value) {
static unsigned char parse_char(char *arg, char *value) {
if (!is_number(value)) {
invalid_value(arg, value);
}
@@ -92,7 +92,7 @@ unsigned char parse_char(char *arg, char *value) {
return (unsigned char)tmp_value;
}
unsigned short parse_ushort(char *arg, char *value) {
static unsigned short parse_ushort(char *arg, char *value) {
if (!is_number(value)) {
invalid_value(arg, value);
}
@@ -103,14 +103,14 @@ unsigned short parse_ushort(char *arg, char *value) {
return (unsigned short)tmp_value;
}
unsigned long parse_ulong(char *arg, char *value) {
static unsigned long parse_ulong(char *arg, char *value) {
if (!is_number(value)) {
invalid_value(arg, value);
}
return (unsigned long)atoll(value);
}
void parse_color(char *arg, char *value, unsigned char color[3]) {
static void parse_color(char *arg, char *value, unsigned char color[3]) {
char *tmp;
tmp = strtok(value, ",");
color[0] = parse_char(arg, tmp);
@@ -120,7 +120,7 @@ void parse_color(char *arg, char *value, unsigned char color[3]) {
color[2] = parse_char(arg, tmp);
}
Parameters parse_args(int argc, char **argv) {
Parameters args_parse(int argc, char **argv) {
Parameters params;
params.quiet = false;
@@ -203,7 +203,7 @@ Parameters parse_args(int argc, char **argv) {
params.height = 1080;
}
set_seed(params.seed);
rand_seed(params.seed);
if (!size_set) {
params.size = rand_ushort(6) + 6;
src/args.h
+1 -1
View File
@@ -3,6 +3,6 @@
#ifndef ARGS_H
#define ARGS_H
Parameters parse_args(int argc, char **argv);
Parameters args_parse(int argc, char **argv);
#endif
src/bmp.c
+12 -11
View File
@@ -6,31 +6,32 @@
#define HEADER_SIZE 54
void write_str(unsigned char *buffer, unsigned int offset, unsigned int size,
unsigned char *value) {
static void write_str(unsigned char *buffer, unsigned int offset,
unsigned int size, unsigned char *value) {
unsigned int i;
for (i = 0; i < size; i++) {
buffer[offset + i] = (unsigned char)value[i];
}
}
void write_num(unsigned char *buffer, unsigned int offset, unsigned int size,
unsigned int value) {
static void write_num(unsigned char *buffer, unsigned int offset,
unsigned int size, unsigned int value) {
unsigned int i;
for (i = 0; i < size; i++) {
buffer[offset + i] = (unsigned char)((value >> (8 * i)) & 0xFFu);
}
}
void write_nul(unsigned char *buffer, unsigned int offset, unsigned int size) {
static void write_nul(unsigned char *buffer, unsigned int offset,
unsigned int size) {
unsigned int i;
for (i = 0; i < size; i++) {
buffer[offset + i] = 0;
}
}
unsigned char *bmp_header(unsigned short width, unsigned short height,
unsigned char color_depth) {
static unsigned char *bmp_header(unsigned short width, unsigned short height,
unsigned char color_depth) {
unsigned char *output = (unsigned char *)malloc(HEADER_SIZE);
unsigned int data_length = ((unsigned int)width) * ((unsigned int)height) *
((unsigned int)color_depth);
@@ -68,8 +69,8 @@ unsigned char *bmp_header(unsigned short width, unsigned short height,
return output;
}
unsigned int bmp_data_line_length(unsigned short width,
unsigned char color_depth) {
static unsigned int bmp_data_line_length(unsigned short width,
unsigned char color_depth) {
unsigned int data_length =
((unsigned int)width) * ((unsigned int)color_depth);
unsigned int line_offset = data_length % 4;
@@ -77,8 +78,8 @@ unsigned int bmp_data_line_length(unsigned short width,
return data_length + line_padding;
}
void bmp_data_line(unsigned char *buffer, unsigned short width,
unsigned char color_depth, unsigned char *data) {
static void bmp_data_line(unsigned char *buffer, unsigned short width,
unsigned char color_depth, unsigned char *data) {
unsigned int data_length =
((unsigned int)width) * ((unsigned int)color_depth);
unsigned int line_offset = data_length % 4;
src/generator.c
+18 -17
View File
@@ -9,22 +9,23 @@
#define BMP_COLOR_DEPTH 3
Parameters global_params;
float slope;
unsigned char color_depth;
unsigned int line_width;
unsigned char *last_line;
unsigned char *current_line;
static Parameters global_params;
static float slope;
static unsigned char color_depth;
static unsigned int line_width;
static unsigned char *last_line;
static unsigned char *current_line;
unsigned char generate_pixel(unsigned char depth, unsigned char top_pixel,
unsigned char left_pixel) {
static unsigned char generate_pixel(unsigned char depth,
unsigned char top_pixel,
unsigned char left_pixel) {
short k = rand_uchar(global_params.var[depth] + 1);
short v = (rand_uchar(2) == 0 ? k : -k) + (left_pixel)*slope +
(top_pixel) * (1.0 - slope);
return (unsigned char)(v < 0 ? 0 : (v > 255 ? (unsigned char)255 : v));
}
void generate_line() {
static void generate_line() {
unsigned int i;
for (i = 0; i < line_width; i++) {
last_line[i] = current_line[i];
@@ -40,8 +41,8 @@ void generate_line() {
}
}
void generate_bmp_line(unsigned short y, unsigned char *data_buffer,
unsigned int len) {
static void generate_bmp_line(unsigned short y, unsigned char *data_buffer,
unsigned int len) {
unsigned int i;
unsigned int x;
if (y % global_params.size == 0) {
@@ -54,7 +55,7 @@ void generate_bmp_line(unsigned short y, unsigned char *data_buffer,
}
}
void debug_parameters(Parameters params) {
static void debug_parameters(Parameters params) {
if (!params.quiet) {
printf(" output %s\n", params.file_path);
printf(" seed %ld\n", params.seed);
@@ -75,7 +76,7 @@ void debug_parameters(Parameters params) {
}
}
void init(Parameters params) {
static void init(Parameters params) {
global_params = params;
slope = ((float)params.slope) / 255.0;
color_depth = params.monochrome ? 1 : 3;
@@ -87,22 +88,22 @@ void init(Parameters params) {
for (i = 0; i < line_width; i++) {
current_line[i] = params.start[i % color_depth];
}
set_seed(params.seed);
rand_seed(params.seed);
}
void clean() {
static void clean() {
free(last_line);
free(current_line);
}
void print_time(Parameters params, clock_t start) {
static void print_time(Parameters params, clock_t start) {
if (!params.quiet) {
clock_t now = clock();
printf("time: %.3fs\n", (float)(now - start) / CLOCKS_PER_SEC);
}
}
void generate(Parameters params) {
void generator_run(Parameters params) {
if (!params.quiet) {
puts(PACKAGE " " VERSION);
}
src/generator.h
+1 -1
View File
@@ -3,6 +3,6 @@
#ifndef GENERATOR_H
#define GENERATOR_H
void generate(Parameters params);
void generator_run(Parameters params);
#endif
src/main.c
+3 -2
View File
@@ -1,10 +1,11 @@
#include "main.h"
#include "args.h"
#include "generator.h"
#include "types.h"
int main(int argc, char **argv) {
Parameters params;
params = parse_args(argc, argv);
generate(params);
params = args_parse(argc, argv);
generator_run(params);
return 0;
}
src/main.h
+2
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@@ -1,4 +1,6 @@
#ifndef MAIN_H
#define MAIN_H
int main(int argc, char **argv);
#endif
src/rand.c
+2 -2
View File
@@ -4,7 +4,7 @@ static unsigned long long mcg_state = 0xcafef00dd15ea5e5u; // Must be odd
static unsigned long long const multiplier = 6364136223846793005u;
// https://en.wikipedia.org/wiki/Permuted_congruential_generator
unsigned long rand(void) {
static unsigned long rand(void) {
unsigned long long x = mcg_state;
unsigned count = (unsigned)(x >> 61);
@@ -13,7 +13,7 @@ unsigned long rand(void) {
return (unsigned long)(x >> (22 + count));
}
void set_seed(unsigned long long seed) {
void rand_seed(unsigned long long seed) {
mcg_state = 2 * seed + 1;
(void)rand();
}
src/rand.h
+1 -1
View File
@@ -1,7 +1,7 @@
#ifndef RAND_H
#define RAND_H
void set_seed(unsigned long long seed);
void rand_seed(unsigned long long seed);
unsigned char rand_uchar(unsigned int max);
unsigned short rand_ushort(unsigned int max);