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Test QR with lv_img instead of lv_canvas

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This commit is contained in:
fvanroie 2020-11-16 18:35:48 +01:00
parent a8c96598d1
commit 889e8aa779
1 changed files with 71 additions and 1 deletions
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72
lib/lv_lib_qrcode/lv_qrcode.c
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@ -59,6 +59,28 @@ lv_obj_t * lv_qrcode_create(lv_obj_t * parent, lv_coord_t size, lv_color_t dark_
lv_canvas_set_palette(canvas, 1, light_color); lv_canvas_set_palette(canvas, 1, light_color);
return canvas; return canvas;
// lv_img_dsc_t * img_buf = lv_img_buf_alloc(20, 20, LV_IMG_CF_TRUE_COLOR);
// if(img_buf == NULL) {
// LV_LOG_ERROR("img_buf failed");
// return NULL;
// }
// lv_obj_t * image = lv_img_create(parent, NULL); // empty image
// if(image == NULL) {
// lv_img_buf_free(img_buf);
// LV_LOG_ERROR("image failed");
// return NULL;
// }
// lv_img_set_auto_size(image, true); // auto size according to img_buf
// lv_img_set_src(image, img_buf); // assign the image buffer
// lv_img_set_zoom(image, 5 * LV_IMG_ZOOM_NONE); // default zoom
// lv_img_set_antialias(image, false); // don't anti-alias
// lv_obj_set_style_local_image_recolor(image, LV_IMG_PART_MAIN, LV_STATE_DEFAULT, dark_color);
// return image;
} }
/** /**
@ -102,6 +124,54 @@ lv_res_t lv_qrcode_update(lv_obj_t * qrcode, const void * data, uint32_t data_le
return LV_RES_OK; return LV_RES_OK;
} }
lv_res_t lv_qrcode_update2(lv_obj_t * qrcode, const void * data, uint32_t data_len)
{
lv_color_t c;
// c.full = 1;
if(data_len > qrcodegen_BUFFER_LEN_MAX) return LV_RES_INV;
/* create a working cache and results buffer */
uint8_t data_tmp[qrcodegen_BUFFER_LEN_MAX];
uint8_t qr_pixels[qrcodegen_BUFFER_LEN_MAX];
memcpy(data_tmp, data, data_len);
/* convert data into pixels */
bool ok = qrcodegen_encodeBinary(data_tmp, data_len, qr_pixels, qrcodegen_Ecc_MEDIUM, qrcodegen_VERSION_MIN,
qrcodegen_VERSION_MAX, qrcodegen_Mask_AUTO, true);
if(!ok) return LV_RES_INV;
// lv_coord_t obj_w = lv_obj_get_width(qrcode);
int qr_size = qrcodegen_getSize(qr_pixels);
int scale = 1;
int scaled = 0;
int margin = 0;
LV_LOG_ERROR("5 OK");
lv_img_ext_t * ext = (lv_img_ext_t *)lv_obj_get_ext_attr(qrcode);
if(!ext || !ext->src) return LV_RES_INV;
LV_LOG_ERROR("6 OK");
lv_img_header_t header;
lv_img_decoder_get_info(ext->src, &header);
LV_LOG_ERROR("7 OK");
lv_img_decoder_dsc_t dec_dsc;
lv_res_t res = lv_img_decoder_open(&dec_dsc, ext->src, LV_COLOR_CYAN);
LV_LOG_ERROR("8 OK");
for(int y = 0; y < dec_dsc.header.h; y++) {
for(int x = 0; x < dec_dsc.header.w; x++) {
c = qrcodegen_getModule(qr_pixels, x, y) ? LV_COLOR_WHITE : LV_COLOR_BLACK;
lv_img_buf_set_px_color(dec_dsc.src, x + margin, y + margin, c);
}
}
LV_LOG_ERROR("9 OK");
return LV_RES_OK;
}
/** /**
* Delete a QR code object * Delete a QR code object
* @param qrcode pointer to a QR code obejct * @param qrcode pointer to a QR code obejct
@ -109,8 +179,8 @@ lv_res_t lv_qrcode_update(lv_obj_t * qrcode, const void * data, uint32_t data_le
void lv_qrcode_delete(lv_obj_t * qrcode) void lv_qrcode_delete(lv_obj_t * qrcode)
{ {
lv_img_dsc_t * img = lv_canvas_get_img(qrcode); lv_img_dsc_t * img = lv_canvas_get_img(qrcode);
lv_mem_free(img->data); lv_mem_free(img->data);
lv_mem_free(img);
lv_obj_del(qrcode); lv_obj_del(qrcode);
} }