72 lines
2.0 KiB
C
72 lines
2.0 KiB
C
#include "u8g2/u8g2.h"
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#include "qrcode/qrcode.h"
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#include "flipper.h"
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void u8g2_DrawPixelSize(u8g2_t* u8g2, uint8_t x, uint8_t y, uint8_t size) {
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for(uint8_t px = 0; px < size; px++) {
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for(uint8_t py = 0; py < size; py++) {
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u8g2_DrawPixel(u8g2, x + px, y + py);
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}
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}
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}
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void u8g2_qrcode(void* p) {
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FuriRecordSubscriber* log = get_default_log();
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// open record
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FuriRecordSubscriber* fb_record =
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furi_open_deprecated("u8g2_fb", false, false, NULL, NULL, NULL);
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// Allocate a chunk of memory to store the QR code
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// https://github.com/ricmoo/QRCode
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// we init version 1, 21x21 px, 16 alphanumeric chars with
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// QUARTILE error correction
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const uint8_t qr_version = 1;
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const uint8_t qr_error_correction = ECC_QUARTILE;
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const uint8_t qr_x = 32;
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const uint8_t qr_y = 0;
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const uint8_t qr_size = 3;
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// The structure to manage the QR code
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QRCode qrcode;
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// QR Code init
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uint8_t qrcodeBytes[qrcode_getBufferSize(qr_version)];
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qrcode_initText(&qrcode, qrcodeBytes, qr_version, qr_error_correction, "HELLO FLIPPER");
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if(fb_record == NULL) {
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fuprintf(log, "[widget] cannot create fb record\n");
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furiac_exit(NULL);
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}
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u8g2_t* fb = furi_take(fb_record);
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// clear display
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if(fb != NULL) {
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u8g2_ClearBuffer(fb);
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}
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while(1) {
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if(fb != NULL) {
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// draw qr code
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for(uint8_t y = 0; y < qrcode.size; y++) {
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for(uint8_t x = 0; x < qrcode.size; x++) {
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if(qrcode_getModule(&qrcode, x, y)) {
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u8g2_SetDrawColor(fb, 1);
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u8g2_DrawPixelSize(fb, qr_x + x * qr_size, qr_y + y * qr_size, qr_size);
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} else {
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u8g2_SetDrawColor(fb, 0);
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u8g2_DrawPixelSize(fb, qr_x + x * qr_size, qr_y + y * qr_size, qr_size);
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}
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}
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}
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} else {
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furiac_exit(NULL);
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}
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furi_commit(fb_record);
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delay(1);
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}
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} |