mirror of
https://github.com/binary-kitchen/doorlockd
synced 2024-11-16 20:19:13 +01:00
56 lines
1.1 KiB
C++
56 lines
1.1 KiB
C++
#include <cstring>
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#include <unistd.h>
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#include <fcntl.h>
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#include "logger.h"
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extern "C" {
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#include "epaper/bsp.h"
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#include "epaper/Display_Controller.h"
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}
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#include "epaper.h"
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#include "config.h"
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using namespace std;
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Epaper::Epaper() :
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_logger(Logger::get())
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{
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memset(_prevImg, 0xFF, _ARRAY_SIZE);
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// Initialize Epaper library
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bsp_init();
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}
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Epaper::~Epaper()
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{
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}
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Epaper &Epaper::get()
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{
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static Epaper e;
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return e;
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}
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void Epaper::draw(const string &uri)
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{
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unsigned char buffer[_ARRAY_SIZE];
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snprintf((char*)buffer, _ARRAY_SIZE,
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"qrencode -l M -d 100 -s 5 \"%s\" -t png -o -"
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"| composite -geometry +90+0 /dev/stdin " TEMPLATE_LOCATION " -colorspace gray -depth 1 gray:-",
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uri.c_str());
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FILE* f = popen((const char*)buffer, "r");
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int i = fread(buffer, _ARRAY_SIZE, 1, f);
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if (i != 1)
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{
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_logger(LogLevel::error, "Image format error");
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pclose(f);
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return;
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}
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pclose(f);
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epd_DisplayImg(EPDType_270, buffer, _prevImg);
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memcpy(_prevImg, buffer, _ARRAY_SIZE);
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}
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