Files
awtrix-light/lib/TJpg_Decoder/src/TJpg_Decoder.h
Stephan Mühl adb5102869 release
2023-03-22 12:15:18 +01:00

129 lines
3.5 KiB
C++

/*
TJpg_Decoder.h
JPEG Decoder for Arduino using TJpgDec:
http://elm-chan.org/fsw/tjpgd/00index.html
Incorporated into an Arduino library by Bodmer 18/10/19
Latest version here:
https://github.com/Bodmer/TJpg_Decoder
*/
#ifndef TJpg_Decoder_H
#define TJpg_Decoder_H
#include "User_Config.h"
#include "Arduino.h"
#include "tjpgd.h"
#if defined (ESP8266) || defined (ESP32)
#include <pgmspace.h>
#include <FS.h>
#include <LittleFS.h>
#ifdef ESP32
#include "SPIFFS.h" // ESP32 only
#endif
#define TJPGD_LOAD_FFS
#elif defined (ARDUINO_ARCH_RP2040)
#include <FS.h>
#include <LittleFS.h>
#define SPIFFS LittleFS
#define TJPGD_LOAD_FFS
#endif
#if defined (TJPGD_LOAD_SD_LIBRARY)
#include <SD.h>
#endif
enum {
TJPG_ARRAY = 0,
TJPG_FS_FILE,
TJPG_SD_FILE
};
//------------------------------------------------------------------------------
typedef bool (*SketchCallback)(int16_t x, int16_t y, uint16_t w, uint16_t h, uint16_t *data);
class TJpg_Decoder {
private:
#if defined (TJPGD_LOAD_SD_LIBRARY)
File jpgSdFile;
#endif
#ifdef TJPGD_LOAD_FFS
fs::File jpgFile;
#endif
public:
TJpg_Decoder();
~TJpg_Decoder();
static int jd_output(JDEC* jdec, void* bitmap, JRECT* jrect);
static unsigned int jd_input(JDEC* jdec, uint8_t* buf, unsigned int len);
void setJpgScale(uint8_t scale);
void setCallback(SketchCallback sketchCallback);
#if defined (TJPGD_LOAD_SD_LIBRARY) || defined (TJPGD_LOAD_FFS)
JRESULT drawJpg (int32_t x, int32_t y, const char *pFilename);
JRESULT drawJpg (int32_t x, int32_t y, const String& pFilename);
JRESULT getJpgSize(uint16_t *w, uint16_t *h, const char *pFilename);
JRESULT getJpgSize(uint16_t *w, uint16_t *h, const String& pFilename);
#endif
#if defined (TJPGD_LOAD_SD_LIBRARY)
JRESULT drawSdJpg (int32_t x, int32_t y, const char *pFilename);
JRESULT drawSdJpg (int32_t x, int32_t y, const String& pFilename);
JRESULT drawSdJpg (int32_t x, int32_t y, File inFile);
JRESULT getSdJpgSize(uint16_t *w, uint16_t *h, const char *pFilename);
JRESULT getSdJpgSize(uint16_t *w, uint16_t *h, const String& pFilename);
JRESULT getSdJpgSize(uint16_t *w, uint16_t *h, File inFile);
#endif
#ifdef TJPGD_LOAD_FFS
JRESULT drawFsJpg (int32_t x, int32_t y, const char *pFilename, fs::FS &fs = SPIFFS);
JRESULT drawFsJpg (int32_t x, int32_t y, const String& pFilename, fs::FS &fs = SPIFFS);
JRESULT drawFsJpg (int32_t x, int32_t y, fs::File inFile);
JRESULT getFsJpgSize(uint16_t *w, uint16_t *h, const char *pFilename, fs::FS &fs = SPIFFS);
JRESULT getFsJpgSize(uint16_t *w, uint16_t *h, const String& pFilename, fs::FS &fs = SPIFFS);
JRESULT getFsJpgSize(uint16_t *w, uint16_t *h, fs::File inFile);
#endif
JRESULT drawJpg(int32_t x, int32_t y, const uint8_t array[], uint32_t array_size);
JRESULT getJpgSize(uint16_t *w, uint16_t *h, const uint8_t array[], uint32_t array_size);
void setSwapBytes(bool swap);
bool _swap = false;
const uint8_t* array_data = nullptr;
uint32_t array_index = 0;
uint32_t array_size = 0;
// Must align workspace to a 32 bit boundary
uint8_t workspace[TJPGD_WORKSPACE_SIZE] __attribute__((aligned(4)));
uint8_t jpg_source = 0;
int16_t jpeg_x = 0;
int16_t jpeg_y = 0;
uint8_t jpgScale = 0;
SketchCallback tft_output = nullptr;
TJpg_Decoder *thisPtr = nullptr;
};
extern TJpg_Decoder TJpgDec;
#endif // TJpg_Decoder_H