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- /* Arduino SdFat Library
- * Copyright (C) 2009 by William Greiman
- *
- * This file is part of the Arduino SdFat Library
- *
- * This Library is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This Library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with the Arduino SdFat Library. If not, see
- * <http://www.gnu.org/licenses/>.
- */
- /**
- * \file
- * \brief SdFile class
- */
- #include "Marlin.h"
- #ifdef SDSUPPORT
- #include "SdBaseFile.h"
- //#include <Print.h>
- #ifndef SdFile_h
- #define SdFile_h
- //------------------------------------------------------------------------------
- /**
- * \class SdFile
- * \brief SdBaseFile with Print.
- */
- class SdFile : public SdBaseFile/*, public Print*/ {
- // GCode filtering vars and methods - due to optimization reasons not wrapped in a separate class
-
- // beware - this read ptr is manipulated inside just 2 methods - readFilteredGcode and gfReset
- // If you even want to call gfReset from readFilteredGcode, you must make sure
- // to update gfReadPtr inside readFilteredGcode from a local copy (see explanation of this trick in readFilteredGcode)
- const uint8_t *gfReadPtr;
-
- uint32_t gfBlock; // remember the current file block to be kept in cache - due to reuse of the memory, the block may fall out a must be read back
- uint16_t gfOffset;
- const uint8_t *gfBlockBuffBegin()const;
-
- void gfReset();
-
- bool gfEnsureBlock();
- bool gfComputeNextFileBlock();
- void gfUpdateCurrentPosition(uint16_t inc);
- public:
- SdFile() {}
- SdFile(const char* name, uint8_t oflag);
- #if ARDUINO >= 100
- size_t write(uint8_t b);
- #else
- void write(uint8_t b);
- #endif
-
- bool openFilteredGcode(SdBaseFile* dirFile, const char* path);
- int16_t readFilteredGcode();
- bool seekSetFilteredGcode(uint32_t pos);
- int16_t write(const void* buf, uint16_t nbyte);
- void write(const char* str);
- void write_P(PGM_P str);
- void writeln_P(PGM_P str);
- };
- #endif // SdFile_h
- #endif
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