Which is the best Linux Distro for Graphics Programming
Yet another story is when you are in fact on graphics system, BUT you are logged in on another system, which may, or may not have graphics installed. Anyway, if you are using window-related system, in which you can open new windows, then I assume you will be able to write a program which is using pure graphics system by simple calls to something like X-windows api — which is provided by Xlib libraries like X11.h and others.
Which is the best Linux Distro for Graphics Programming
I am about to start developing software for computer graphics primarily involving Virtual Reality software (using WebGL/opengl, unity, etc.). Currently I’m unable to even run WebGL programs in any browser (including Chromium) in my Virtual Box Ubuntu 14.04 VM even after having installed Ubuntu Restricted Extras. In addition to this, more immediately, I’m going to need to install a node.js server for some graphics work that I’ll be doing soon, which I would think would be better to do in a Unix-system.
I’m planning on dual booting another Linux distribution (as I still need to use certain Windows specific apps) and I’m currently considering Linux Mint as the Desktop Environment looks sleek and also due to the fact, from what I understand, that it has lower hardware requirements than Ubuntu off of which it is built. My laptop is a Lenovo with 4GB RAM, 500GB HDD + 24 SSD, 2.40 GHz processor and a baseline integrated graphics chip.
Given the requirements needed for graphics programming, which distribution would be best suited if I were to dual boot?
All Linux distributions are made up of more or less the same set of software packages. They differ in packaging, administration setup, and general polish. Some are more daring with new releases/packages, others are more cautious/conservative.
For development (i.e., serious work), keep away from «build from source» style distributions, you want the guarantees given by repeatability and uniformity of binary packages. Check what other people in your niche use, that might be important for interoperability. Check what your near environment uses, you’ll need their help. Browse through available documentation, specifically for development (even in general),you will use it often.
Basic Graphic Programming in C++, graphics.h library − The graphic.h library is used to add graphics to your C++ program. For graphic programming, it is a must include library as it …
How To Do C Graphics Programming In Linux
* Copy the file ‘c_ graphics ‘ & libgraph-1.0.2.tar.gz (if available, otherwise you can download it from http://download.savannah.gnu.org/releases-redirect/lib
How to install and run graphics.h libgraph library in ubuntu
Today, software is all around us. We use numerous software in our day to day lives, be it for work or study. Before using those softwares, we need to …
C C++ Graphics program in Linux
I have this program in C language: http://rajababuman.blogspot.com/p/graphics-in-turbo-c.html.
It works fine if I use DOSBOX on my Win7 machine and using TurboC++ and shows me what it’s doing. But, how can I run the following graphics program on a Linux machine (where we don’t have DOSBOX or turboC++)? PS : DISPLAY environment variable is already set to my local machine’s IP address to SHOW me GUI/Graphics on Linux box i.e. if I run «xclock», the clock shows up on my machine successfully.
I know TURBO C is a Windows tool and uses Windows API.
I don’t have to use graphics.h header file, if I can get a simple C program on a Linux machine, which when I compile, gives me the same output (as this program is giving me on a Windows machine) on a Linux machine (without me intsalling/using DOSBOX or TurboC).
///////////////////////////////////////////////////////////////////////////////////////// //Diagram of a car /////////////////////////////////////////////////////////////////////////////////////// #include #include void main()
When I compile this program on a Linux machine, I get the following errors:
g.c:2:21: error: graphics.h: No such file or directory g.c: In function âmainâ: g.c:5: error: âDETECTâ undeclared (first use in this function) g.c:5: error: (Each undeclared identifier is reported only once g.c:5: error: for each function it appears in.) g.c:4: warning: return type of âmainâ is not âintâ g.c:2:21: error: graphics.h: No such file or directory g.c: In function âmainâ: g.c:5: error: âDETECTâ undeclared (first use in this function) g.c:5: error: (Each undeclared identifier is reported only once g.c:5: error: for each function it appears in.) g.c:4: warning: return type of âmainâ is not âintâ The «graphics.h» is the header file of one of the libraries supported by Turbo C++, so it’s dedicated for DOS.
If you want to use DOSBOX in Linux, please try downloading «dosbox-0.74.tar.gz» from its project website to your Linux machine, and compile and then run it.
If you want to compile a graphics program under Linux, first you have to assume you are working in some graphical environment, like X11R6 or Xorg, or Wayland, etc. Those are graphical servers, which perform all graphics-related operations on your display. You know that one of them is installed if you are using windows — they are provided by one of many window managers, like gnome, kde/plasma, xfce, fluxbox, and lots of others. Anyway, if you are using window-related system, in which you can open new windows, then I assume you will be able to write a program which is using pure graphics system by simple calls to something like X-windows api — which is provided by Xlib libraries like X11.h and others. Those libs should be installed on most systems, because in normal usage cases they are not needed. Also, you have to install gcc and other build tools, so installing ‘something’ is necessary. But X11 is a simple (not easy!) library, with which you can create simple (and even more complicated) progams which draws rectangles etc.
However, installing bare X11 toolset and libs seems to be little to harsh, and really, using something more high-level will suffice you better, like SDL mentioned before. You can also try to get into a complicated and reach world of gui-related tools/libs, like Gtk or Qt worlds, but they are overkill for drawing single shapes.
If you are not up to learn a lot (and X11 is quite huge and nasty/complicated sometimes, same as Gtk and Qt, which forces you to program in their ways), you can try some primitive drawing libs, like (quickly googled) gfx lib: https://www3.nd.edu/~dthain/courses/cse20211/fall2013/gfx/
I think they are more like this in the world, you can just look for some of them trying ‘simple graphics library for c’ in google, etc. Good luck!
Another story is when you have your Linux without graphics, and you see only text console. Then, you will have to use something which called framebuffer, and sometimes this requires a quite complicated setup, including enabling/compiling specific kernel modules. This way is probably not recommended for you, because the interference with the system is even bigger than when you already have graphics gui, and you try only use them.
Yet another story is when you are in fact on graphics system, BUT you are logged in on another system, which may, or may not have graphics installed. Because you mentioned DISPLAY variable, I suspect that you like to run your program on another host, being logged in on some graphic workstation. This is also complicated. SSH is able to tunnel X11 server requests but your program is using local graphics resources to display it’s window. So for some cases I suspect that runnig it on remote which does not have graphics libs could be possible in some way. The easiest case here is when on both systems you have full graphical workstation, but sometimes there are other differences interfering with displaying the picture or main window — like other DPI or resolution, other resources, other themes loaded by window manager, etc.
http://www.slideshare.net/tusharkute/graphics-programming-in-c-under-gnu-inux-ubuntu-distribution — Slide 16/17/18 shows what I wanted (without installing DOSBox) after I install some goodies.
Here’s the PDF if someone needs it (another link): http://s000.tinyupload.com/index.php?file_id=00628356691036251698 OR see the attached file for steps.
It’s useful if the slide share link is broken / gone. Thanks to Tushar B Kute for his online contribution.
Python Desktop Graphic Frameworks, Python Desktop Graphic Frameworks. Your first lessons in Python is aimed at text input and input. Once you have gotten past the first programs that you run from …
Low level Linux graphics
For educational purposes, I’d like to write an application on a Linux environment that can process keyboard events and draw graphics without huge dependencies like X or SDL. I presume that this must be possible, because X and SDL are just programs themselves, so they must rely on other methods inherent to the environment. Is this understanding correct?
If so, where might I learn to write such a program? My limited experience tells me that it would involve making calls to the kernel, and/or writing to special files; however, I haven’t been able to find any tutorials on the matter (I am not even sure what to Google).
Also, in case it is relevant, I am running Debian Squeeze on Virtualbox. I have used a netinst cd without networking, so there isn’t much installed on it currently. I will install gcc , but I am hoping I can get by with nothing more.
X (or the X Window System) is practically the most low-level graphics API a Linux application will likely use on a modern Linux Desktop. Most applications won’t even bother going that deep and will instead use a GUI toolkit implementation like GTK or Qt.
Below that there’s only the hardware drivers and probably some X-internal APIs for the drivers. But those are not meant or designed to be used by normal userspace applications.
You could use the kernel framebuffer device (fbdev), but I don’t know how well that supports modern graphics API.
Edit: Wayland is an alternative to X that has only recently found some mainstream adoption. It is now possible to run a Linux-Desktop purely on Wayland with no X-Windows system running at all. Wayland itself depends on an EGL driver underneath (an API strongly related to OpenGL).
If you want to get input events without using X then you will have to read them out of device nodes. Linux has a generic input subsystem called evdev that most drivers take advantage of. So to read input events, you can read from any of the device nodes in /dev/input.
An easy trick to find the mouse device node is to run «cat» on the device nodes one at a time, moving the mouse during each «cat». If you see data coming out to the screen then that is your mouse device node. The relevant header file is linux/input.h. For an example of how to use it, look at the source for xevdev driver.
For low level graphics manipulation, if you are really feeling ambitious, you can generally memory map the framebuffer and do your own bit blts.
A good tutorial for low-level graphics on Linux is available here.
A good post on stack overflow for low-level input is available here.
Regardless, you probably want to use framebuffer or drm/kms (framebuffer being the simpler of the two) for graphics and evdev for direct input on Linux.
SFML Graphics Library, Simply put SFML is a multimedia library for C++ with bindings available for other languages such as Python, Rust, etc. It does not just let you …
Linux Graphics Programming
There was a time when embedded system developers didn’t need to worry about graphics. When you have a PIC processor and two-line LCD, there isn’t much to learn. But if you are deploying Linux-based systems today, graphics are a real possibility. There are many options for doing Linux graphics including Wayland, X11, and frame buffers. Confused? This tutorial can help. The sections on Wayland and Mir are under construction, but that’s probably not what you are going to be using on a typical hacker project for the foreseeable future, anyway.
Of course, even inside those broad categories, you have multiple choices. If you are doing X11, for example, you can go low-level or pick any of a number of high-level libraries.
The tutorial assumes you understand C and basic Linux programming. It has two sections, really. One on how to plot points on the screen and another that covers basic graphics algorithms for drawing things like circles. We’d be interested in some benchmarks about the relative performance between the different raw drawing methods.
If you have a graphics-intensive application, the Raspberry PI 3 isn’t too bad. However, you can get dedicated hardware that will do better. You can even roll your own if you are so inclined.
Posted in Linux Hacks Tagged dri, frame buffer, graphics, linux, x11