The first commit

tools/bk_crc/bk_crc.cpp

@@ -0,0 +1,73 @@
+#include <cstdint>
+#include <fstream>
+#include <iostream>
+#include <stdio.h>
+#include <string>
+#include <utility>
+#include <vector>
+#include <algorithm>
+#include <iomanip>
+
+typedef enum{
+    BINARY,
+    DEFINES,
+} OutType;
+
+typedef std::pair<uint32_t, uint32_t> CRC;
+
+CRC bk_crc(const std::vector<uint8_t> &buffer){
+    CRC crc = {0, 0xFFFFFFFF};
+    for (auto byte : buffer){
+        crc.first += byte;
+        crc.second ^= (byte << (crc.first & 0x17));
+    }
+    return crc;
+}
+
+/* calculate Banjo-Kazooie CRC and write value to bin OR txt file with gcc defines */
+/// -D output as defines
+int main(int argc, char *argv[]){
+    struct {
+        OutType type;
+        std::string name;
+    } config = {BINARY, ""};
+
+    //parse arguments
+    for(int i = 1; i < argc - 1; i++){
+        std::string argi = argv[i];
+        if(argi == "-D" || argi == "-d") //no loop
+            config.type = DEFINES;
+            config.name = argv[++i];
+            std::transform(config.name.begin(), config.name.end(), config.name.begin(), ::toupper);
+    }
+
+    std::string in_bin = argv[argc -1];
+    std::ifstream in_f(in_bin, std::ios::in | std::ios::binary | std::ios::ate);
+    size_t in_size = in_f.tellg();
+    in_f.seekg(0);
+    std::vector<uint8_t> in_data;
+    in_data.resize(in_size);
+    in_f.read(reinterpret_cast<char*>(in_data.data()), in_size);
+    
+    auto result = bk_crc(in_data);
+
+    switch(config.type){
+        case OutType::BINARY:
+            std::cout << (char)((result.first >> 24) & 0xff) << (char)((result.first >> 16) & 0xff) << (char)((result.first >> 8) & 0xff) << (char)((result.first >> 0) & 0xff);
+            std::cout << (char)((result.second >> 24) & 0xff) << (char)((result.second >> 16) & 0xff) << (char)((result.second >> 8) & 0xff) << (char)((result.second >> 0) & 0xff);
+            std::cout << std::flush;
+            break;
+
+        case OutType::DEFINES:
+            std::cout << "-D'" << config.name << "_CRC1=0x";
+            std::cout << std::hex <<std::setfill('0') << std::setw(8) << result.first;
+            std::cout << "' ";
+            std::cout << "-D'" << config.name << "_CRC2=0x";
+            std::cout << std::hex <<std::setfill('0') << std::setw(8) << result.second;
+            std::cout << "'";
+            std::cout << std::endl;
+            break;
+    }
+
+    return 0; 
+}