libjpeg support

[ihhub]

We have libpng support but not libjpeg. Many images are stored in this format and it would be irrational to do not support it.

Correlates with #7

[ngetahun]

Hi @ihhub, I want to get started with this issue. Is it still up for grabs?

[ihhub]

@ngetahun yes, it is still available to take. You can work on it.

[ngetahun]

@ihhub I saw that you didn't add any unit test for png support. Should I do the same for jpeg?

[ngetahun]

Also, it would be nice to setup some sort of build system (perhaps cmake) or a configuration system (like GNU's autoconf) to check and resolve dependencies.

[ihhub]

Ideally we should add unit tests for jpeg. I didn't add unit tests for png because png is not supported on Windows yet (have a look into #41 ).

If you are intending to add jpeg support for Unix OSes as of now then add unit tests under ifdef condition for non-Windows OSes. Later we could add Windows code support and remove ifdef.

[ihhub]

Regarding cmake: you are right we should have it too because we cannot build a whole code without checking the presence of certain libraries like libpng or cuda. Could you please create an issue for this?

[ihhub]

I'll create another issue regarding unit tests for libpng as well.

[yannlabou]

Regarding cmake: you are right we should have it too because we cannot build a whole code without checking the presence of certain libraries like libpng or cuda. Could you please create an issue for this?

Yes. #270