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digitalmars.D.learn - Derelict on Ubuntu with CODE::BLOCKS

reply RegeleIONESCU <regeleionescu gmail.com> writes:
Hello!

Please help me install and use Derelict on Ubuntu 16.04!

I saw this tutorial https://www.youtube.com/watch?v=exQ43PFWJBU 
and I wanted to do it in D but I got lost, totally lost. First 
step is to import OpenGL via Derelict.

I am using Code::Blocks 16.01 with DMD. I downloaded all the 
archives from https://github.com/DerelictOrg. I tried to copy the 
folders into /usr/included/dmd, I tried and copied them to the 
lib folder, then I tried something with DUB - which says it needs 
a dub.sdl file although the file was right there beside it, in 
the same folder I run DUB from. I even tried to setup some paths 
in CB in project build options/debug/linker&search settings. I 
searched for tutorials but couldn't find one on how to install 
Derelict on Ubuntu. To make things even worse, I discovered that 
one needs not only to install Derelict but after that needs to 
install other libraries too that do not come with Derelict. I 
mention that I read Derelict documentation - but I get lost, 
things do not work at all and I am not used at all with linking, 
binding etc.

Please tell me step by step how to make Derelict work with my 
Code::Blocks. I would like to make it system wide available, so 
that it is available for any project I make in CB.





A little background on myself: I am a visual artist interested in 
programming. I used Python for a while, I did small projects, 
functional programming mainly, for example I made a small program 
that converts words into images. I learned C++ but never used it 
in real projects. I love D and I want to make all my future 
projects in D.


Thank you!
Dec 10 2017
next sibling parent Jordan Wilson <wilsonjord gmail.com> writes:
On Sunday, 10 December 2017 at 16:50:10 UTC, RegeleIONESCU wrote:

 Hello!

 Please help me install and use Derelict on Ubuntu 16.04!

 [...]


I use Code::Blocks myself, but doesn't have inbuilt dub support.
This link should help:
http://derelictorg.github.io/building/without-dub/

This will tell you how to build the appropriate Derelict bindings.

Note: you'll still need to make sure the actual C/C++ library 
your trying to use in your D project is available as well.

Jordan
Dec 10 2017
prev sibling parent reply Mike Parker <aldacron gmail.com> writes:
On Sunday, 10 December 2017 at 16:50:10 UTC, RegeleIONESCU wrote:

 Hello!

 Please help me install and use Derelict on Ubuntu 16.04!

 I saw this tutorial https://www.youtube.com/watch?v=exQ43PFWJBU 
 and I wanted to do it in D but I got lost, totally lost. First 
 step is to import OpenGL via Derelict.

 I am using Code::Blocks 16.01 with DMD.


My advice is to ditch Code::Blocks and use something like VS Code 
or Sublime Text in conjunction with DUB. It's by far the easiest 
way to get started with D, particularly for someone who as little 
practical experience with compilers and linkers. Then you don't 
have to worry about "installing" Derelict. You can get the Ubuntu 
packages for the C libraries you need via apt-get on Ubuntu, then 
use DUB to manage and build your project. Piece of cake compared 
to doing it all by hand.

That said...


I downloaded all the
 archives from https://github.com/DerelictOrg.


What do you mean by "all"? You'll need DerelictUtil at minimum, 
as all the Derelict packages depend on it. Other than that, you 
only need the package that providing bindings to the C libraries 
you actually want to use -- DerelictGL3 to gain access to OpenGL 
for starters. Then, if you're using library like SDL or GLFW to 
create your OpenGL window, you'll want DerelictSDL2 or 
DerelictGLFW3 (not both).


 I tried to copy the folders into /usr/included/dmd, I tried and 
 copied them to the lib folder, then I tried something with DUB 
 - which says it needs a dub.sdl file although the file was 
 right there beside it, in the same folder I run DUB from. I 
 even tried to setup some paths in CB in project build 
 options/debug/linker&search settings.


For future reference, when asking for help like this, you'll need 
to be more specific about what you did and what errors you saw. 
This is too vague to be useful to anyone willing to help you.



 I searched for tutorials but couldn't find one on how to 
 install Derelict on Ubuntu.


The documentation link Jordan gave you should suffice. But again, 
I strongly recommend you use DUB to build and manage your 
project. In that case:

https://derelictorg.github.io/building/with-dub/


 To make things even worse, I discovered that one needs not only 
 to install Derelict but after that needs to install other 
 libraries too that do not come with Derelict.


All the Derelict packages com with everything you need to use the 
Derelict packages. It's up to you to get the C libraries you 
want. Some come precompiled, some can be installed via your 
system package manager, some require you to build yourself. 
You'll need to visit the homepage of the C libraries you want to 
install use or, alternatively, do a search for how to install 
them on your system. On Ubuntu, most of what you want is 
available through apt-get. Just be careful about using the proper 
version of the Derelict bindings for each library version you use.


 Please tell me step by step how to make Derelict work with my 
 Code::Blocks. I would like to make it system wide available, so 
 that it is available for any project I make in CB.


Asking for a step-by-step tutorial in the forums is a bit much. 
All of the information you need is already out there. The CB site 
and documentation will show you how to configure paths in CB. 
There are numerous tutorials around that explain the concepts of 
compiling and linking. The Derelict documentation shows you how 
to compile and use the Derelict packages both with and without 
DUB.

You don't need to "install" the Derelict packages system wide on 
a single-user system. Keeping them in your home directory is 
fine. Just tell the compiler how to find them once they're 
compiled and you're building your project.

Let's assume you're using SDL to get your OpenGL window. Then 
you'll need to follow the instructions at the link Jordan gave 
you to fetch and build DerelictUtil, DerelictSDL2, and 
DerelictGL3. Once that's done, for simplicity's sake, create a 
new directory tree. Let's say something like this in your home 
directory:

- dev
-- D
--- import
--- lib

Copy the Derelict source tree from each Derelict package you 
built (everything under the source directory in each package, 
including the directories) into the import directory so that you 
have this tree:

- import
-- derelict
--- gl3
--- sdl2
--- util

Copy the libraries you compiled into the lib directory, so that 
you have this:

- lib
-- libDerelictGL3.a
-- libDerelictSDL2.a
-- libDerelictUtil.a

Once that's done, configure your CB project so that the DMD 
import path is ~/dev/D/import and the library import path is 
~/dev/D/lib. Then add the three libraries to the link list in 
your project settings. I haven't looked at CB in years so I have 
no idea what the specifics are, but all IDEs are similar in this 
regard.

But again, I highly recommend you forget about CB for D 
development while you're learning and use a text editor + DUB 
instead. VS Code is great for this because it has a built-in 
terminal. You can skip most of the above (you'll still need to 
obtain the C libraries), create a DUB package recipe, start 
writing your D code, then hit the Ctrl-~ to pull up the terminal 
in your project directory and type 'dub'. DUB will make sure your 
D dependencies are downloaded and compiled, then compile and link 
your executable.
Dec 10 2017
parent reply RegeleIONESCU <regeleionescu gmail.com> writes:
On Monday, 11 December 2017 at 07:34:47 UTC, Mike Parker wrote:

 On Sunday, 10 December 2017 at 16:50:10 UTC, RegeleIONESCU 
 wrote:

 [...]


 My advice is to ditch Code::Blocks and use something like VS 
 Code or Sublime Text in conjunction with DUB. It's by far the 
 easiest way to get started with D, particularly for someone who 
 as little practical experience with compilers and linkers. Then 
 you don't have to worry about "installing" Derelict. You can 
 get the Ubuntu packages for the C libraries you need via 
 apt-get on Ubuntu, then use DUB to manage and build your 
 project. Piece of cake compared to doing it all by hand.

 [...]


Hello every body!

I know it is four months old thread. But now I found the 
solution! :)

As Mike Parker suggested, DUB + Sublime is the solution. DUB 
works so simple, so nice! DUB works like a charm it imports by 
itself all the needed libraries and does lots of other stuff.


The only problem I have with DUB is that all added dependencies 
are "old". For example added dependency "derelict-sdl2" is 
version="~>2.1.4" while on DUB site the last version is 
3.1.0-alpha.3. I tried the --upgrade plus --prerelease option but 
the dependencies remain the same. I tried to write myself the 
version in the dub.sdl but I get errors related to other 
packages. Is there anyway to make DUB automatically use the 
latest version of a dependency?



Thank you all for your kind support!
May 02 2018
parent reply Mike Parker <aldacron gmail.com> writes:
On Thursday, 3 May 2018 at 03:18:02 UTC, RegeleIONESCU wrote:



 The only problem I have with DUB is that all added dependencies 
 are "old". For example added dependency "derelict-sdl2" is 
 version="~>2.1.4" while on DUB site the last version is 
 3.1.0-alpha.3. I tried the --upgrade plus --prerelease option 
 but the dependencies remain the same. I tried to write myself 
 the version in the dub.sdl but I get errors related to other 
 packages. Is there anyway to make DUB automatically use the 
 latest version of a dependency?


You an control that with precision, specifying specific versions 
if you want. But with Derelict, if you're using mulitple Derelict 
package you have to make sure that all of them depend on the same 
major version of DerelictUtil.

If you paste your full dependency list here, exactly as it's 
written in your package configuration, I might be able to help 
you.
May 02 2018
parent reply RegeleIONESCU <regeleionescu gmail.com> writes:
On Thursday, 3 May 2018 at 06:33:53 UTC, Mike Parker wrote:

 On Thursday, 3 May 2018 at 03:18:02 UTC, RegeleIONESCU wrote:



 The only problem I have with DUB is that all added 
 dependencies are "old". For example added dependency 
 "derelict-sdl2" is version="~>2.1.4" while on DUB site the 
 last version is 3.1.0-alpha.3. I tried the --upgrade plus 
 --prerelease option but the dependencies remain the same. I 
 tried to write myself the version in the dub.sdl but I get 
 errors related to other packages. Is there anyway to make DUB 
 automatically use the latest version of a dependency?


 You an control that with precision, specifying specific 
 versions if you want. But with Derelict, if you're using 
 mulitple Derelict package you have to make sure that all of 
 them depend on the same major version of DerelictUtil.

 If you paste your full dependency list here, exactly as it's 
 written in your package configuration, I might be able to help 
 you.


Hello!

I tried to execute the example from Derelict-SDL2 but I get some 
troubles. Here is the program:

import std.stdio;
import derelict.sdl2.sdl;
import derelict.sdl2.image;
import derelict.sdl2.mixer;
import derelict.sdl2.ttf;
import derelict.sdl2.net;
void main()
{
	DerelictSDL2.load();
	DerelictSDL2Image.load();
	DerelictSDL2Mixer.load();
	DerelictSDL2ttf.load();
	DerelictSDL2Net.load();
	writeln("What is wrong????????????????");
}


Here is the dub.sdl file content:
name "project_01"
description "SDL2_image test app"
authors "Christian"
copyright "Copyright © 2018, Christian"
license "proprietary"
dependency "derelict-sdl2" version="~>2.1.4"


Here is the dub.selections.json
{
	"fileVersion": 1,
	"versions": {
		"derelict-sdl2": "2.1.4",
		"derelict-util": "2.0.6"
	}
}



And here is the error I get when I execute dub run:

christian Christians:~/D_Projects$ dub run
Performing "debug" build using /usr/bin/dmd for x86_64.
derelict-util 2.0.6: target for configuration "library" is up to 
date.
derelict-sdl2 2.1.4: target for configuration "library" is up to 
date.
project_01 ~master: building configuration "application"...
Linking...
To force a rebuild of up-to-date targets, run again with --force.
Running ./project_01
derelict.util.exception.SymbolLoadException ../../.dub/packages/derelict-util-2.0.6/derelict-util/source/derelict/u
il/exception.d(35): Failed to load symbol SDL_DequeueAudio from shared library
libSDL2-2.0.so.0
----------------
../../.dub/packages/derelict-util-2.0.6/derelict-util/source/derelict/
til/sharedlib.d:177 void*
derelict.util.sharedlib.SharedLib.loadSymbol(immutable(char)[], bool) [0x450eef]
../../.dub/packages/derelict-util-2.0.6/derelict-util/source/dereli
t/util/loader.d:323 void*
derelict.util.loader.SharedLibLoader.loadSymbol(immutable(char)[], bool)
[0x44f42a]
../../.dub/packages/derelict-util-2.0.6/derelict-util/source/dereli
t/util/loader.d:346 void derelict.util.loader.SharedLibLoader.bindFunc(void**,
immutable(char)[], bool) [0x44f480]
../../.dub/packages/derelict-sdl2-2.1.4/derelict-sdl2/source/der
lict/sdl2/sdl.d:111 void derelict.sdl2.sdl.DerelictSDL2Loader.loadSymbols()
[0x44ab1f]
../../.dub/packages/derelict-util-2.0.6/derelict-util/source/dereli
t/util/loader.d:198 void
derelict.util.loader.SharedLibLoader.load(immutable(char)[][]) [0x44f2aa]
../../.dub/packages/derelict-util-2.0.6/derelict-util/source/dereli
t/util/loader.d:143 void
derelict.util.loader.SharedLibLoader.load(immutable(char)[]) [0x44f224]
../../.dub/packages/derelict-util-2.0.6/derelict-util/source/derel
ct/util/loader.d:82 void derelict.util.loader.SharedLibLoader.load() [0x44f107]
source/app.d:10 _Dmain [0x44899a]
Program exited with code 1
christian Christians:~/D_Projects$

Could you help me, please?

Thank you very much for your kind support!

p.s. I am using Ubuntu 16.04.
May 03 2018
parent reply Mike Parker <aldacron gmail.com> writes:
On Thursday, 3 May 2018 at 18:36:04 UTC, RegeleIONESCU wrote:



 And here is the error I get when I execute dub run:

 christian Christians:~/D_Projects$ dub run
 Performing "debug" build using /usr/bin/dmd for x86_64.
 derelict-util 2.0.6: target for configuration "library" is up 
 to date.
 derelict-sdl2 2.1.4: target for configuration "library" is up 
 to date.
 project_01 ~master: building configuration "application"...
 Linking...
 To force a rebuild of up-to-date targets, run again with 
 --force.
 Running ./project_01
 derelict.util.exception.SymbolLoadException ../../.dub/packages/derelict-util-2.0.6/derelict-util/source/derelict/u
il/exception.d(35): Failed to load symbol SDL_DequeueAudio from shared library
libSDL2-2.0.so.0



So your app is compiling and executing. This is a runtime error. 
The SymbolLoadException means the SDL library was loaded, but a 
function Derelict expected to find was not there. This usually 
means that your version of Derelict by default supports a 
different version of SDL than you have on your system.

SDL_DequeueAudio was added to SDL in 2.0.5. The best strategy is 
just to request the minimum version of SDL that you need via a 
SharedLibVersion:

import derelict.util.loader : SharedLibVersion;
DerelictSDL2.load(SharedLibVersion(2, 0, 0));

If you need functions from a later version, use that instead 
(e.g. 2,0,2). Just make sure you have the version of SDL that you 
need installed.

Also, if you're going to load all of the libraries as in the 
example, you'll need to make sure they're all installed 
(SDL_image, SDL_mixer, SDL_net, SDL_ttf). I suggest you delete 
all except what you actually need. That's not your current 
problem, but you'll get more exceptions if those libraries aren't 
installed.

If you want to update to derelict-sdl2 3.0.x or 3.1.x, delete 
your dub.selections.json before running dub after you edit your 
package configuration.
May 03 2018
parent RegeleIONESCU <regeleionescu gmail.com> writes:
On Thursday, 3 May 2018 at 19:30:48 UTC, Mike Parker wrote:

 On Thursday, 3 May 2018 at 18:36:04 UTC, RegeleIONESCU wrote:



 [...]



 So your app is compiling and executing. This is a runtime 
 error. The SymbolLoadException means the SDL library was 
 loaded, but a function Derelict expected to find was not there. 
 This usually means that your version of Derelict by default 
 supports a different version of SDL than you have on your 
 system.

 [...]


It works, even when loading all the libraries. I played with 
different versions and loaded libraries one by one to see how it 
works. I even managed to make a window - for me it is a big thing.

Thank you, thank you, thank you for your kind and detailed 
support!
May 04 2018