Invert shellSort logic
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204da1cc3f
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c63f92ae52
1 changed files with 27 additions and 34 deletions
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@ -791,7 +791,7 @@ void CardReader::updir()
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*/
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void CardReader::getfilename_sorted(const uint16_t nr) {
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if (nr < sort_count)
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getfilename_simple(sort_positions[nr]);
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getfilename_simple(sort_positions[sort_count - nr - 1]);
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else
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getfilename(nr);
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}
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@ -854,31 +854,29 @@ void CardReader::presort() {
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#endif
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}
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#define _SORT_CMP_NODIR() (strcasecmp(name1, name2) < 0) //true if lowercase(name1) < lowercase(name2)
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#define _SORT_CMP_TIME_NODIR() (((crmod_date_bckp == crmodDate) && (crmod_time_bckp > crmodTime)) || (crmod_date_bckp > crmodDate))
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#if HAS_FOLDER_SORTING
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#define _SORT_CMP_DIR(fs) ((dir1 == filenameIsDir) ? _SORT_CMP_NODIR() : (fs < 0 ? dir1 : !dir1))
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#define _SORT_CMP_TIME_DIR(fs) ((dir1 == filenameIsDir) ? _SORT_CMP_TIME_NODIR() : (fs < 0 ? dir1 : !dir1))
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#endif
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#ifdef QUICKSORT
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quicksort(0, fileCnt - 1);
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#elif defined(SHELLSORT)
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#define _SORT_CMP_NODIR() (strcasecmp(name2, name1) < 0)
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#define _SORT_CMP_TIME_NODIR() (((crmod_date_bckp == crmodDate) && (crmod_time_bckp < crmodTime)) || (crmod_date_bckp < crmodDate))
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#if HAS_FOLDER_SORTING
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#define _SORT_CMP_DIR(fs) ((dir1 == filenameIsDir) ? _SORT_CMP_NODIR() : (fs < 0 ? filenameIsDir : !filenameIsDir))
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#define _SORT_CMP_TIME_DIR(fs) ((dir1 == filenameIsDir) ? _SORT_CMP_TIME_NODIR() : (fs < 0 ? filenameIsDir : !filenameIsDir))
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#endif
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for (uint8_t runs = 0; runs < 2; runs++)
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{
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//run=0: sorts all files and moves folders to the beginning
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//run=1: assumes all folders are at the beginning of the list and sorts them
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uint8_t* sortingBaseArray;
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uint16_t sortCountFiles = 0;
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if (runs == 0)
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{
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sortingBaseArray = sort_order;
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sortCountFiles = fileCnt;
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}
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#if HAS_FOLDER_SORTING
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else
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{
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sortingBaseArray = sort_order + (fileCnt - dirCnt);
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sortCountFiles = dirCnt;
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}
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#endif
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@ -898,7 +896,7 @@ void CardReader::presort() {
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counter++;
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manage_heater();
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uint8_t orderBckp = sortingBaseArray[i];
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uint8_t orderBckp = sort_order[i];
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getfilename_simple(sort_positions[orderBckp]);
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strcpy(name1, LONGEST_FILENAME); // save (or getfilename below will trounce it)
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crmod_date_bckp = crmodDate;
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@ -908,7 +906,7 @@ void CardReader::presort() {
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#endif
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uint16_t j = i;
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getfilename_simple(sort_positions[sortingBaseArray[j - gap]]);
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getfilename_simple(sort_positions[sort_order[j - gap]]);
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char *name2 = LONGEST_FILENAME; // use the string in-place
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#if HAS_FOLDER_SORTING
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while (j >= gap && ((sdSort == SD_SORT_TIME)?_SORT_CMP_TIME_DIR(FOLDER_SORTING):_SORT_CMP_DIR(FOLDER_SORTING)))
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@ -916,43 +914,28 @@ void CardReader::presort() {
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while (j >= gap && ((sdSort == SD_SORT_TIME)?_SORT_CMP_TIME_NODIR():_SORT_CMP_NODIR()))
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#endif
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{
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sortingBaseArray[j] = sortingBaseArray[j - gap];
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sort_order[j] = sort_order[j - gap];
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j -= gap;
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#ifdef SORTING_DUMP
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for (uint16_t z = 0; z < sortCountFiles; z++)
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{
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printf_P(PSTR("%2u "), sortingBaseArray[z]);
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printf_P(PSTR("%2u "), sort_order[z]);
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}
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printf_P(PSTR("i%2d j%2d gap%2d orderBckp%2d\n"), i, j, gap, orderBckp);
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#endif
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if (j < gap) break;
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getfilename_simple(sort_positions[sortingBaseArray[j - gap]]);
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getfilename_simple(sort_positions[sort_order[j - gap]]);
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name2 = LONGEST_FILENAME; // use the string in-place
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}
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sortingBaseArray[j] = orderBckp;
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sort_order[j] = orderBckp;
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}
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}
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}
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#ifdef SORTING_DUMP
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for (uint16_t z = 0; z < fileCnt; z++)
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printf_P(PSTR("%2u "), sort_order[z]);
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SERIAL_PROTOCOLLN();
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#endif
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#else //Bubble Sort
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uint16_t counter = 0;
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menu_progressbar_init(0.5*(fileCnt - 1)*(fileCnt), _i("Sorting files"));
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// Compare names from the array or just the two buffered names
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#define _SORT_CMP_NODIR() (strcasecmp(name1, name2) < 0) //true if lowercase(name1) < lowercase(name2)
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#define _SORT_CMP_TIME_NODIR() (((crmod_date_bckp == crmodDate) && (crmod_time_bckp > crmodTime)) || (crmod_date_bckp > crmodDate))
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#if HAS_FOLDER_SORTING
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#define _SORT_CMP_DIR(fs) ((dir1 == filenameIsDir) ? _SORT_CMP_NODIR() : (fs < 0 ? dir1 : !dir1))
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#define _SORT_CMP_TIME_DIR(fs) ((dir1 == filenameIsDir) ? _SORT_CMP_TIME_NODIR() : (fs < 0 ? dir1 : !dir1))
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#endif
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for (uint16_t i = fileCnt; --i;) {
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if (!IS_SD_INSERTED) return;
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bool didSwap = false;
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@ -986,12 +969,16 @@ void CardReader::presort() {
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// Sort the current pair according to settings.
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if (
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#if HAS_FOLDER_SORTING
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(sdSort == SD_SORT_TIME && _SORT_CMP_TIME_DIR(FOLDER_SORTING)) || (sdSort == SD_SORT_ALPHA && _SORT_CMP_DIR(FOLDER_SORTING))
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!((sdSort == SD_SORT_TIME && _SORT_CMP_TIME_DIR(FOLDER_SORTING)) || (sdSort == SD_SORT_ALPHA && _SORT_CMP_DIR(FOLDER_SORTING)))
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#else
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(sdSort == SD_SORT_TIME && _SORT_CMP_TIME_NODIR()) || (sdSort == SD_SORT_ALPHA && _SORT_CMP_NODIR())
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!((sdSort == SD_SORT_TIME && _SORT_CMP_TIME_NODIR()) || (sdSort == SD_SORT_ALPHA && _SORT_CMP_NODIR()))
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#endif
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)
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{
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#ifdef SORTING_DUMP
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puts_P(PSTR("swap"));
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#endif
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sort_order[j] = o2;
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sort_order[j + 1] = o1;
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didSwap = true;
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@ -1001,6 +988,12 @@ void CardReader::presort() {
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} //end of bubble sort loop
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#endif
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#ifdef SORTING_DUMP
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for (uint16_t z = 0; z < fileCnt; z++)
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printf_P(PSTR("%2u "), sort_order[z]);
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SERIAL_PROTOCOLLN();
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#endif
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uint8_t sort_order_reverse_index[fileCnt];
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for (uint8_t i = 0; i < fileCnt; i++)
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sort_order_reverse_index[sort_order[i]] = i;
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