Is this library could decode png to bmp?

[cyang812]

I know ok_png_read() can get png info, but how can I get bitmap data and write it to a file?

[cyang812]

I try to use this sentence to write a file, but output is not correct. I mean output file size is correct, but content is not.

fwrite(image->data, sizeof(uint8_t), image->width * image->height * 4, file)

[brackeen]

Is this library could decode png to bmp?

ok-file-formats doesn't have an encoders, so if you want to encode to BMP you'll have to use a different library (or write it yourself).

As far as the code sample goes, it looks like you're creating a RAW file.

What do you mean by "output is not correct"?

[cyang812]

How to check the output RAW file is correct?
I use XnView software to open it, but it doesn't looks like a real image.

[cyang812]

Never mind, I get it.
Thanks a lot.