Initial commit for GitHub migration based on spice2x-25-03-03

src/spice2x/reader/message.cpp

@@ -0,0 +1,51 @@
+#include "message.h"
+#include "util/logging.h"
+
+Message::Message(std::vector<uint8_t> data) {
+    this->data = std::move(data);
+}
+
+uint8_t Message::chk_sum() {
+
+    // initial checksum of 0
+    uint64_t chk = 0;
+
+    // add all bytes to checksum
+    for (uint8_t c : this->data)
+        chk += c;
+
+    // return checksum
+    return (uint8_t) (chk & 0xFF);
+}
+
+std::vector<uint8_t> Message::get_data_encoded() {
+
+    // check if already encoded
+    if (data.size() <= encoded.size())
+        return encoded;
+
+    // encode data
+    for (uint8_t c : this->data) {
+        if (c == 0xAA || c == 0xFF) {
+            encoded.push_back(0xFF);
+            encoded.push_back(~c);
+        } else {
+            encoded.push_back(c);
+        }
+    }
+
+    // return data
+    return this->encoded;
+}
+
+void Message::print_debug() {
+    std::ostringstream ss;
+    for (uint8_t b : this->data)
+        ss << " " << (void *) ((long long) b);
+    ss << " / ";
+    for (uint8_t b : this->get_data_encoded())
+        ss << " " << (void *) ((long long) b);
+
+    log_info("reader", "{}", ss.str());
+}
+