Showing png image error

How-to
1

Showing png image error following error：
|Warn: Image draw cannot open the image resource (…\lvgl\src\lv_draw\lv_img_cache.c #128)
|Warn: Image draw error |(…\lvgl\src\lv_draw\lv_draw_img.c #61)|

Can someone help me? Can you give me some hints about what might be causing it. If anyone can help me, I will be very grateful.

2

Please fill the template to provide enough information to investigate your issue.

> ## Important: posts that do not use this template will be ignored or closed.
>
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>  *Delete this section if you read and applied the mentioned points.*
  
## Description

###  What MCU/Processor/Board and compiler are you using?

###  What do you want to achieve?

### What have you tried so far?

## Code to reproduce
Add a code snippet which can run in the simulator. It should contain only the relevant code that compiles without errors when separated from your main code base.

The code block(s) should be formatted like:
```c
/*You code here*/
```
3

Image data source:
const lv_img_dsc_t png_decoder_test = {
.header.always_zero = 0,
.header.w = 200,
.header.h = 150,
.data_size = 20869,
.header.cf = LV_IMG_CF_RAW_ALPHA,
.data = png_decoder_test_map,
};

test code :
png_decoder_init();

LV_IMG_DECLARE(png_decoder_test);
lv_obj_t * img = lv_img_create(lv_scr_act(), NULL);
lv_img_set_src(img, &png_decoder_test);

Now it is located that there is a problem with memory allocation, error code 83, application memory allocation failed. Which method I use in your blog, the source of the image data I use is also there. What should I do? Thank you

4

So please fill the template. We still don’t know:

  • Where does png_decoder_test come from? Is it from the example on the blog or your own?
  • Which OS/MCU do you use? Simulator or real hardware?
  • What gives “error code 83”?
  • The code is not formatted as asked in the template

We kindly help, but you need to describe your issue in the template to make it easy to read and understand.

5

@kisvegabor my problem has been solved, thank you for your help me.

6

How did you solve it? What was the problem?

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