43 lines
1.7 KiB
C
43 lines
1.7 KiB
C
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// Comment out the next #defines if you are not using an SD Card to store the JPEGs
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// Commenting out the line is NOT essential but will save some FLASH space if
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// SD Card access is not needed. Note: use of SdFat is currently untested!
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#define LOAD_SD_LIBRARY // Default SD Card library
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//#define LOAD_SDFAT_LIBRARY // Use SdFat library instead, so SD Card SPI can be bit bashed
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// Note for ESP8266 users:
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// If the sketch uses SPIFFS and has included FS.h without defining FS_NO_GLOBALS first
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// then the JPEGDecoder library will NOT load the SD or SdFat libraries. Use lines thus
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// in your sketch (see the examples included in the JPEGDecoder library):
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/*
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#define FS_NO_GLOBALS
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#include <FS.h>
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// You will then need to directly reference the SPIFFS File type thus in the sketch, e.g.:
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fs::File jpegFile = SPIFFS.open( filename, "r"); // Example
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// This will then allow the default method of using the SD library File type to be used
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// in the same sketch, e.g.:
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File jpegFile = SD.open( filename, FILE_READ);
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*/
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// This is all to avoid a redefinition of 'class fs::File' error due to a conflict between the
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// duplicate definitions in the SD library and the SPIFFS library.
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#ifdef ESP8266
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// Unomment out the next #define if you want the bytes swapped in the image blocks
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// returned by read().
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// Swapping the bytes is only needed to use the ESP8266 SPI library writePattern()
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// member function and it is better to use readSwappedBytes() instead of read() in
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// the sketch. Images will look pyscodelic with wrong colours if the SPI transmit byte
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// order is not right for your sketch!
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// #define SWAP_BYTES // Deprecated, only included for backwards compatibility
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#endif
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