79 lines
1.7 KiB
C++
79 lines
1.7 KiB
C++
/*
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TJpg_Decoder.h
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JPEG Decoder for Arduino using TJpgDec:
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http://elm-chan.org/fsw/tjpgd/00index.html
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Incorporated into an Arduino library by Bodmer 18/10/19
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Latest version here:
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https://github.com/Bodmer/TJpg_Decoder
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*/
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#ifndef TJpg_Decoder_H
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#define TJpg_Decoder_H
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#include "Arduino.h"
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#include "tjpgd.h"
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#if defined (ESP8266) || defined (ESP32)
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#include <pgmspace.h>
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#endif
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#define TJPGD_WORKSPACE_SIZE 3100
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enum {
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TJPG_ARRAY = 0,
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TJPG_FS_FILE,
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TJPG_SD_FILE
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};
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//------------------------------------------------------------------------------
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typedef bool (*SketchCallback)(int16_t x, int16_t y, uint16_t w, uint16_t h, uint16_t *data, void* display, bool dither, bool invert);
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class TJpg_Decoder {
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private:
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public:
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TJpg_Decoder();
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~TJpg_Decoder();
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static uint16_t jd_output(JDEC* jdec, void* bitmap, JRECT* jrect);
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static uint16_t jd_input(JDEC* jdec, uint8_t* buf, uint16_t len);
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void setJpgScale(uint8_t scale);
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void setCallback(SketchCallback sketchCallback);
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JRESULT drawJpg(int32_t x, int32_t y, const uint8_t array[], uint32_t array_size, void* display, bool dither, bool invert);
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JRESULT getJpgSize(uint16_t *w, uint16_t *h, const uint8_t array[], uint32_t array_size);
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void setSwapBytes(bool swap);
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bool _swap = false;
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const uint8_t* array_data = nullptr;
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uint32_t array_index = 0;
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uint32_t array_size = 0;
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// Must align workspace to a 32 bit boundary
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uint8_t workspace[TJPGD_WORKSPACE_SIZE] __attribute__((aligned(4)));
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uint8_t jpg_source = 0;
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int16_t jpeg_x = 0;
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int16_t jpeg_y = 0;
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uint8_t jpgScale = 0;
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SketchCallback tft_output = nullptr;
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TJpg_Decoder *thisPtr = nullptr;
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};
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extern TJpg_Decoder TJpgDec;
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#endif // TJpg_Decoder_H
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