Load image data into preallocated buffers BUG

[cyang812]

when I use ok_png_read_to_buffer() or ok_jpg_read_to_buffer() to decode image and storage raw data in a buffer , I can't get the data in there, and error_message is empty.

I find something wrong in your code, maybe I use it wrong.

In the ok_png.c line 750, you check the dst_buffer and create it. But if the dst_buffer is preallocated, you do nothing. So I add a else case like this else{png->data = decoder->dst_buffer;}, then it's correct.

It's the same case in the ok_jpg.c line 1586.

Excuse me for bad english!

[brackeen]

That is intentional. png->data is not set in that case, so that ok_png_free doesn't deallocate data. The decoded data will be in the buffer your code provides.

[cyang812]

OK, I get it.

Thanks a lot.