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#include <fstream>
#include <iostream>
#include <sstream>
#include <cstring>
#include <iomanip>
#include <cstdlib>
std::string *filenumber;
int writePalette(std::ofstream &output) {
std::string filename = *filenumber + "/palette";
std::ifstream palette(filename.c_str());
if (!palette.is_open()) {
std::cerr << "Couldn't open palette file" << std::endl;
return 1;
}
int input;
do {
palette >> input;
if (palette.eof())
break;
output << (char) input;
} while(true);
palette.close();
return 0;
}
int writeSections(std::ofstream &output) {
std::string filename = *filenumber + "/section_info";
std::ifstream sectionInfo(filename.c_str());
if (!sectionInfo.is_open()) {
std::cerr << "Couldn't open section_info file" << std::endl;
return 0;
}
int numSections;
sectionInfo >> numSections;
output << (char) numSections;
int input;
char *input_byte = (char *) &input;
for(int i = 0; i < numSections; i++) {
//x1
sectionInfo >> input;
output << (char)input_byte[0];
output << (char)input_byte[1];
//x2
sectionInfo >> input;
output << (char)input_byte[0];
output << (char)input_byte[1];
//y1
sectionInfo >> input;
output << (char)input;
//y2
sectionInfo >> input;
output << (char)input;
//next
sectionInfo >> input;
output << (char)input;
//addressLow
sectionInfo >> input;
output << (char)input_byte[0];
output << (char)input_byte[1];
//addressHigh
sectionInfo >> input;
output << (char)input;
}
sectionInfo.close();
return numSections;
}
int writeClickFields(std::ofstream &output) {
std::string filename = *filenumber + "/clickfield_info";
std::ifstream clickFieldInfo(filename.c_str());
if (!clickFieldInfo.is_open()) {
std::cerr << "Couldn't open clickfield_info file" << std::endl;
return 1;
}
int numClickFields;
clickFieldInfo >> numClickFields;
output << (char) numClickFields;
int input;
char *input_byte = (char *) &input;
for(int i = 0; i < numClickFields; i++) {
//x1
clickFieldInfo >> input;
output << (char)input_byte[0];
output << (char)input_byte[1];
//x2
clickFieldInfo >> input;
output << (char)input_byte[0];
output << (char)input_byte[1];
//y1
clickFieldInfo >> input;
output << (char)input;
//y2
clickFieldInfo >> input;
output << (char)input;
//next
clickFieldInfo >> input;
output << (char)input;
}
clickFieldInfo.close();
return 0;
}
int writePixelData(std::ofstream &output, int imageNum, int skip) {
std::ostringstream fileName;
fileName << *filenumber << "/image" << imageNum << ".bmp";
std::ifstream image(fileName.str().c_str(), std::ios::binary);
if (!image.is_open()) {
std::cerr << "Couldn't open " << fileName.str() << " file" << std::endl;
return 0;
}
image.seekg(0, image.end);
int length = image.tellg();
length -= skip;
image.seekg(skip, image.beg);
char *buf = new char[length];
image.read(buf, length);
output.write(buf, length);
delete[] buf;
return length;
}
void printHelp() {
std::cout << "create_image output-prefix file-number bytes-skip" << std::endl << std::endl;
std::cout << " output-prefix: String the created file should begin with" << std::endl;
std::cout << " file-number: Number of the created file and also name of source folder" << std::endl;
std::cout << " bytes-skip: How many bytes to skip in each .bmp file" << std::endl;
std::cout << std::endl << "EXAMPLE:" << std::endl
<< "create_image ms2_data 15 1146" << std::endl
<< " creates ms2_data.015 assuming there are the right files inside 015 folder" << std::endl;
}
int main(int argc, char *argv[]) {
if (argc == 2 && !strcmp(argv[1], "--help")) {
printHelp();
return 0;
}
if (argc != 4 ) {
printHelp();
return 1;
}
std::ostringstream oss;
oss << std::setfill('0') << std::setw(3) << argv[2];
*filenumber = oss.str();
char *ptr;
int bytesSkip = strtol(argv[3], &ptr, 10);
std::string oFileName = argv[1];
oFileName += "." + *filenumber;
std::ofstream output(oFileName.c_str(), std::ios::binary);
if (!output.is_open()) {
std::cerr << "Couldn't open output file" << std::endl;
return 1;
}
// size
// just a place holder, will be filled later
output << (char) 0x40;
output << (char) 0x70;
output << (char) 0x01;
output << (char) 0x00;
if (writePalette(output))
return 1;
int numImages = writeSections(output);
if (numImages == 0)
return 1;
if (writeClickFields(output))
return 1;
// we don't compress the images, so set to 0
output << (char) 0; //numRepeat
output << (char) 0; //numZw
int totalLength = 0;
int oldLength = 0;
for (int i = 0; i < numImages; i++) {
totalLength += writePixelData(output, i, bytesSkip);
if (oldLength == totalLength) {
std::cerr << "Error while reading the image number: " << i << std::endl;
return 1;
}
oldLength = totalLength;
}
//reversing the size computation inside the engine
totalLength += 15;
totalLength /= 16;
totalLength -= 0x70;
int i = (totalLength & 0xf000) >> 12;
int j = totalLength << 4;
char *i_p = (char *) &i;
char *j_p = (char *) &j;
//writing the size
output.seekp(0);
output << j_p[0];
output << j_p[1];
output << i_p[0];
output << i_p[1];
output.close();
return 0;
}
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