first 20 codewords extracted

diff --git a/camera.cpp b/camera.cpp
index e87d8ea29f8689fd884b16ce22914f493ef031c4..4cb3e341dcddeec5e2b1784d722aae431ea0aa92 100644 (file)
--- a/camera.cpp
+++ b/camera.cpp
@@ -8,9 +8,11 @@ void print(std::vector<std::vector<bool>> &symbol);
 void vec_xor(std::vector<bool> &v1, const std::vector<bool> v2);
 unsigned int distance(std::vector<bool> &v1, const std::vector<bool> &v2);
 void read_words_from_file(char const *filename, std::vector<std::vector<bool>> &symbol);
+void retrieve_codewords(std::vector<std::vector<bool>> &symbol, std::vector<bool> &codewords, bool is_upwards, std::size_t row, std::size_t col);
 
 std::vector<bool> get_format_info(std::vector<std::vector<bool>> &symbol);
 void decode_mask(std::vector<std::vector<bool>> &symbol, std::size_t mask_pattern);
+std::vector<bool> get_codewords_from_symbol(std::vector<std::vector<bool>> &symbol);
 
 int main(){
        std::vector<std::vector<bool>> symbol(21, std::vector<bool>(21,0));
@@ -29,6 +31,8 @@ int main(){
        
        print(symbol);
 
+       std::vector<bool> codewords = get_codewords_from_symbol(symbol);
+       print(codewords);
        
        return 0;
 }
@@ -191,6 +195,122 @@ void decode_mask(std::vector<std::vector<bool>> &symbol, std::size_t mask_patter
                }
        }
 }
+void retrieve_codewords(std::vector<std::vector<bool>> &symbol, std::vector<bool> &codewords, bool is_upwards, unsigned int row, unsigned int col){
+       if (is_upwards){
+               for (unsigned int r{row + 3}; r >= row; --r){
+                       for (unsigned int c{col + 1}; c >= col; --c){
+                               //std::cout << r << ' ' << c << std::endl;
+                               codewords.push_back(symbol[r][c]);
+                       }
+               }
+       }
+       else {
+               for (unsigned int r{row}; r <= row + 3; ++r){
+                       for (unsigned int c{col + 1}; c >= col; --c){
+                               //std::cout << r << ' ' << c << std::endl;
+                               codewords.push_back(symbol[r][c]);
+                       }
+               }
+       }
+}
+               
+std::vector<bool> get_codewords_from_symbol(std::vector<std::vector<bool>> &symbol){
+       std::vector<bool> codewords{};
+       unsigned int c{}, r{};
+       // refer to codewords by their top left corner
+       
+       for (c = 19, r = 17;c >= 13; c-=2){
+               for (r = 17;r >= 21 - 3 * 4;r-=4){
+                       retrieve_codewords(symbol, codewords, true, r, c);
+               }
+               c -= 2;
+               for (r = 9;r < 20; r+=4){
+                       retrieve_codewords(symbol, codewords, false, r, c);
+               }
+       }
+
+       for (r = 17;r >= 21 - 3 * 4;r-=4){
+               retrieve_codewords(symbol, codewords, true, r, c);
+       }
+       std::cout << r << ' ' << c << std::endl;
+/*     
+       // up special
+       std::vector<bool> character_symbol_special1(codeword_message.begin() + codeword_counter * 8, codeword_message.begin() + (codeword_counter + 1) * 8);
+       codeword_counter++;
+       //for (auto i : character_symbol_special1) {std::cout <<  i;}std::cout<<std::endl;
+       //std::cout << "x=" << x << ",y=" << y << std::endl;
+       grid = symbol_placement_up_special(grid, x, y, character_symbol_special1);
+       
+       y = 0;
+       std::vector<bool> character_symbol_top1(codeword_message.begin() + codeword_counter * 8, codeword_message.begin() + (codeword_counter + 1) * 8);
+       codeword_counter++;
+       //for (auto i : character_symbol_top1) {std::cout <<  i;}std::cout<<std::endl;
+       //std::cout << "x=" << x << ",y=" << y << std::endl;
+       grid = symbol_placement_up(grid, x, y, character_symbol_top1);
+       
+       // down special
+       x -= 2; 
+       y = 3;
+       std::vector<bool> character_symbol_top2(codeword_message.begin() + codeword_counter * 8, codeword_message.begin() + (codeword_counter + 1) * 8);
+       codeword_counter++;
+       //for (auto i : character_symbol_top2) {std::cout <<  i;}std::cout<<std::endl;
+       //std::cout << "x=" << x << ",y=" << y << std::endl;
+       grid = symbol_placement_down(grid, x, y, character_symbol_top2);
+
+       
+       y = 6 +2;
+       std::vector<bool> character_symbol_special2(codeword_message.begin() + codeword_counter * 8, codeword_message.begin() + (codeword_counter + 1) * 8);
+       codeword_counter++;
+       //for (auto i : character_symbol_special2) {std::cout <<  i;}std::cout<<std::endl;
+       //std::cout << "x=" << x << ",y=" << y << std::endl;
+       grid = symbol_placement_down_special(grid, x, y, character_symbol_special2);
+       
+
+       // printing down long col
+       y += 4; 
+       for (;y < 21;y+=4){
+               std::vector<bool> character_symbol(codeword_message.begin() + codeword_counter * 8, codeword_message.begin() + (codeword_counter + 1) * 8);
+               codeword_counter++;
+               //for (auto i : character_symbol) {std::cout <<  i;}std::cout<<std::endl;
+               //std::cout << "x=" << x << ",y=" << y << std::endl;
+               grid = symbol_placement_down(grid, x, y, character_symbol);
+       }
+
+       // fill in data that is between two finder patterns
+       x -= 2;
+       y = 9;
+       std::vector<bool> character_symbol_horiz1(codeword_message.begin() + codeword_counter * 8, codeword_message.begin() + (codeword_counter + 1) * 8);
+       codeword_counter++;
+       //for (auto i : character_symbol_horiz1) {std::cout <<  i;}std::cout<<std::endl;
+       //std::cout << "x=" << x << ",y=" << y << std::endl;
+       grid = symbol_placement_up(grid, x, y, character_symbol_horiz1);
+       
+       x -= 3;
+       y = 12;
+       std::vector<bool> character_symbol_horiz2(codeword_message.begin() + codeword_counter * 8, codeword_message.begin() + (codeword_counter + 1) * 8);
+       codeword_counter++;
+       //for (auto i : character_symbol_horiz2) {std::cout <<  i;}std::cout<<std::endl;
+       //std::cout << "x=" << x << ",y=" << y << std::endl;
+       grid = symbol_placement_down(grid, x, y, character_symbol_horiz2);
+
+       x -= 2;
+       y = 9;
+       std::vector<bool> character_symbol_horiz3(codeword_message.begin() + codeword_counter * 8, codeword_message.begin() + (codeword_counter + 1) * 8);
+       codeword_counter++;
+       //for (auto i : character_symbol_horiz3) {std::cout <<  i;}std::cout<<std::endl;
+       //std::cout << "x=" << x << ",y=" << y << std::endl;
+       grid = symbol_placement_up(grid, x, y, character_symbol_horiz3);
+       
+       x -= 2;
+       y = 12;
+       std::vector<bool> character_symbol_horiz4(codeword_message.begin() + codeword_counter * 8, codeword_message.begin() + (codeword_counter + 1) * 8);
+       codeword_counter++;
+       //for (auto i : character_symbol_horiz4) {std::cout <<  i;}std::cout<<std::endl;
+       //std::cout << "x=" << x << ",y=" << y << std::endl;
+       grid = symbol_placement_down(grid, x, y, character_symbol_horiz4);
+       */
+       return codewords;
+}
 
 void read_words_from_file(char const *filename, std::vector<std::vector<bool>> &symbol) {
        std::ifstream file{ filename };