file2c.cpp

#include <cstdio>
#include <cstdlib>
#include <cassert>
#include <string>
#include <algorithm>

using namespace std;

size_t GetFileSize(FILE * fp)
{
    // Should implement this in a slightly more conformant way.
    assert(fp);
    fseeko(fp, 0, SEEK_END);
    off_t sz = ftello(fp);
    assert(sz != -1);
    rewind(fp);
    return (size_t) sz;
}

void AppendBuffer(string& out, const char* buffer, size_t sz, string filename)
{
    replace( filename.begin(), filename.end(), '.', '_');
    replace( filename.begin(), filename.end(), '/', '_');
    replace( filename.begin(), filename.end(), '\\', '_');
    char temp[128];

    out += "static unsigned int ";
    out += filename;
    out += "_size = ";
    snprintf(temp, 128, "%ld", sz);
    out += temp;
    out += ";\n";

    out += "static unsigned char ";
    out += filename;
    out += "[] = {";


    for (size_t i = 0; i < sz; i++) {
        if (i % 25 == 0) {
            out += "\n    ";
        }
        snprintf(temp, 128, "0x%.2x%s", (int) ((unsigned char) buffer[i]), (i+1 == sz) ? "" : ", ");
        out += temp;
    }

    out += "\n};\n\n";
}

int main(int argc, char* argv[]) {
    string out;

    for (int i = 1; i < argc; i++) {
        fprintf(stderr, "Processing %s\n", argv[i]);
        FILE * fp = fopen(argv[i], "rb");
        assert(fp);
        size_t sz = GetFileSize(fp);
        char* buffer = new char[sz];
        size_t r = fread(buffer, 1, sz, fp);
        assert(r == sz);
        AppendBuffer(out, buffer, sz, argv[i]);
        delete[] buffer;
    }

    printf("%s", out.c_str());
}