bissen21/Marlin_Firmware
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Improvements, more SORT_USES_MORE_RAM

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With this option, always keeps the dir in RAM, doubling as a cache for
getfilename. A board with only 8K of SRAM is cutting it very close.
This commit is contained in:
Scott Lahteine
2014-11-26 07:17:47 -08:00
parent 785143a013
commit ae081d0fe0
3 changed files with 78 additions and 81 deletions
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18
Marlin/cardreader.h
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@ -6,7 +6,7 @@
#define MAX_DIR_DEPTH 10 // Maximum folder depth
#define SORT_USES_RAM false // Buffer while sorting, else re-read from SD
#define SORT_USES_MORE_RAM false // Always keep the directory in RAM
#define SORT_LIMIT 256 // Maximum number of sorted items
#define SORT_LIMIT 64 // Maximum number of sorted items
#define FOLDER_SORTING -1 // -1=above 0=none 1=below
#include "SdFile.h"
@ -32,7 +32,7 @@ public:
void getStatus();
void printingHasFinished();
void getfilename(const uint8_t nr);
void getfilename(const uint16_t nr);
uint16_t getnrfilenames();
void getAbsFilename(char *t);
@ -46,7 +46,7 @@ public:
#ifdef SDCARD_SORT_ALPHA
void presort();
void flush_presort();
void getfilename_sorted(const uint8_t nr);
void getfilename_sorted(const uint16_t nr);
#endif
@ -60,21 +60,21 @@ public:
public:
bool saving;
bool logging;
bool sdprinting ;
bool sdprinting;
bool cardOK;
char filename[FILENAME_LENGTH];
char diveFilename[LONG_FILENAME_LENGTH];
char longFilename[LONG_FILENAME_LENGTH];
bool filenameIsDir;
int lastnr; //last number of the autostart;
private:
SdFile root,*curDir,workDir,workDirParents[MAX_DIR_DEPTH];
uint16_t workDirDepth;
#ifdef SDCARD_SORT_ALPHA
uint16_t sort_count;
uint8_t *sort_order;
#if SORT_USES_MORE_RAM
uint16_t sort_count;
char **sortnames;
#else
uint8_t sort_order[SORT_LIMIT];
uint8_t *isDir;
#endif
#endif
Sd2Card card;
@ -93,7 +93,7 @@ private:
bool autostart_stilltocheck; //the sd start is delayed, because otherwise the serial cannot answer fast enought to make contact with the hostsoftware.
LsAction lsAction; //stored for recursion.
int16_t nrFiles; //counter for the files in the current directory and recycled as position counter for getting the nrFiles'th name in the directory.
uint16_t nrFiles; //counter for the files in the current directory and recycled as position counter for getting the nrFiles'th name in the directory.
char* diveDirName;
void lsDive(const char *prepend,SdFile parent);
};