94 lines
2.4 KiB
C
94 lines
2.4 KiB
C
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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typedef struct File {
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unsigned char* data;
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int len;
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} File;
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int file_exist(const char* filename) {
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return access(filename, F_OK) == 0;
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}
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File read_entire_file(const char* filename)
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{
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FILE *f = fopen(filename, "r");
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fseek(f, 0, SEEK_END);
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long fsize = ftell(f);
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fseek(f, 0, SEEK_SET);
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unsigned char *string = malloc(fsize);
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fread(string, fsize, 1, f);
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fclose(f);
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return (File) {
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.len = fsize,
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.data = string,
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};
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}
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void file_free(File file)
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{
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free(file.data);
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}
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void write_entire_file(const char* filename, File file)
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{
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FILE *f = fopen(filename, "w");
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fwrite(file.data, file.len, 1, f);
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fclose(f);
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}
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// TODO: str -> format, ... | vsnprintf
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int file_append(File file, int at, const char* format, ...)
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{
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int len = strlen(format);
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memcpy(&file.data[at], format, len);
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return len;
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}
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int main(int argc, const char *argv[])
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{
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if (argc != 4) {
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printf("ERR: missing argument.\n");
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printf("usage: %s <input asset> <output header file> <variable name>\n", argv[0]);
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return 1;
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}
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const char *input = argv[1];
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const char *output = argv[2];
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const char *name = argv[3];
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if (!file_exist(input)) {
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printf("ERR: input file '%s' do not exist.\n", input);
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return 1;
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}
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File asset = read_entire_file(input);
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File header;
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header.len = asset.len*6 /*0xFF, */ + asset.len/20*5 /*\n */ + 200 /*header+footer+banane*/ + strlen(name)*2;
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header.data = malloc(header.len);
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int cursor = 0;
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// TODO: refacto ce truc de con la
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// cursor += file_append(header, cursor, "static const int %s_size = %d;\n", name, asset.len);
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cursor += snprintf((char*)header.data+cursor, header.len-cursor, "static const int %s_size = %d;\n", name, asset.len);
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cursor += snprintf((char*)header.data+cursor, header.len-cursor, "static const unsigned char %s_data[%d] = {", name, asset.len);
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int i;
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for (i = 0; i < asset.len; i++) {
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if (!(i%20)) cursor += snprintf((char*)header.data+cursor, header.len-cursor, "\n ");
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cursor += snprintf((char*)header.data+cursor, header.len-cursor, "0x%02X, ", asset.data[i]);
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}
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cursor += snprintf((char*)header.data+cursor, header.len-cursor, "\n};\n");
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header.len = cursor;
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write_entire_file(output, header);
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return 0;
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}
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