LinuxQuestions.org - Blog Entries

Overview of Software Projects

Posted 06-06-2013 at 09:10 PM by ttk (Unpopular Positions: One Geek's Take)

Writing software is one of my favorite pastimes. I derive great satisfaction from designing and implementing tools, giving people new and needed capabilities.

Unfortunately I have more projects underway than time and energy to give them all the attention I'd like. I struggle to apply discipline to finish some projects before starting others, with mixed success. Some of my tools are useful now, while others are works in various states of progress (or neglect).

Some...

ttk

Senior Member

Posted in Technology, Defense

Views 1446 Comments 0 ttk is offline

Simple C - mix pixel data, integer math (fixed point), data clamping...

Posted 06-06-2013 at 06:15 PM by rainbowsally

Tags assembler, computer mad science, make compiling, simple c

Simple C to mix pixel data, integer math (fixed point), data clamping

Today's Features

Simple program to add two pixels clamping each byte to 0xFF, but adding all four bytes in parallel for speed. There are no branches in the algorithm.
Another simple program to mix two colors defining a gradient using a fraction from 0 to 1. We compare floating point to fixed point math versions.

Surprisingly, the long version compiles about the same code as the short one with...

rainbowsally

Member

Posted in Uncategorized

Views 1091 Comments 0 rainbowsally is offline

Media Transition: Welcome to My Blog

Posted 06-06-2013 at 05:06 PM by ttk (Unpopular Positions: One Geek's Take)
Updated 06-06-2013 at 05:08 PM by ttk

There is a reason for starting this blog.

In fact, there are thirty-nine reasons.

Since about 1998, I have written my thoughts in composition pads. I think best with a pen and paper, and writing lists and drawing sketches are the best ways I know to organize my own thoughts.

Since 1998, I have filled thirty-nine composition pads. They line a shelf in my home office. They serve as a catalog for my thoughts, ideas, and life events.

Unfortunately,...

ttk

Senior Member

Posted in Reflection

Views 1293 Comments 0 ttk is offline

From zero to Ventrilo in 5 minutes...

Posted 06-05-2013 at 09:30 PM by rocket357 (Musings on technology, philosophy, and life in the corporate world)
Updated 06-05-2013 at 11:18 PM by rocket357

Long story short:

Me. Rackspace cloud. Start timer.

Spin up Ubuntu 13.04 cloud server (512 MB size is perfect for this), start downloading Ventrilo Server for Linux. Edit Cloud DNS in the Rackspace mycloud portal to add A/CNAME/PTR after the assigned ip's show up...

A few moments later, login to server. Change root password. scp Ventrilo installer to server. Install the Rackspace cloud monitoring agent.

Create vent user. Untar...

rocket357

Member

Posted in Uncategorized

Views 4789 Comments 1 rocket357 is offline

Basic CLI (Command Line Interface) Tools Pt. 1

Posted 06-04-2013 at 04:11 PM by Nbiser
Updated 06-04-2013 at 04:16 PM by Nbiser

There are many tools in the command line interface that are good to know if you want to use Linux. But don't worry, they aren't all that hard to learn! First, you will need to open a terminal window (only if you are using a graphical user interface (GUI). Once you are in the terminal you can type

Code:

ls

This will display the contents of your current working directory, which should look something like this,

Code:

bin      Documents  Music     Public       Templates
Desktop  Downloads  Pictures

...

Nbiser

Member

Posted in Uncategorized

Views 8929 Comments 2 Nbiser is offline

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