DirectX Zoom Filter

High performance filter providing real-time zoom/pan capability

DirectX is an innovating technology that allows the development of real-time multimedia processing applications based on a graph structure which contains media providers, consumers and various effects and transformations

The effect we have developed for this framework is a zoom/pan effect - this may seem trivial at first sight, but it is in fact quite difficult to implement for real-time applications (and this is probably the reason for which it is not included in the official framework release)

The real time requirement places very strict performance constraints on the software that are impossible to meet without using extensive optimizations. Another critical requirement was the quality of the output media, which must be suitable for multimedia presentations

Our product has addressed this issues follows:

1. Performance

  • An assembly optimized superscalar core has been developed using MMX technology
  • The performance increase delivered, compared to a reference scalar C++ filter, is more than one order of magnitude

 2. Quality

  • The system implements a high-quality, sub pixel accurate, bilinear filter

 Platform details

  • Environment: Microsoft Windows 7/Vista/XP
  • Development language: Microsoft Visual C++ 2010, DirectMedia SDK
  • Requirements: DirectX 10



Recent posts on our blog
AngularJS – how to write a simple application for listing products
Sep 01, 2016, by AdrianC
In the first article you got to know something about Angular, and now it's time to get underway and see it in action.... read more
Programmers are bound to make an impact on the Romanian administration
Aug 31, 2016, by VladC
The Romanian Government tries to develop a new platform called GovITHub, which is designed to simplify all aspects regarding the Romanian public administration.... read more
Romanian students innovate at Microsoft's Imagine Cup
Jul 14, 2016, by BogdanD
Romanian students, Flavia Oprea, Iulian Mateșică and Cristian Alexandrescu from the Polytechnic University of Bucharest won the Innovation challenge in Microsoft's Imagine Cup competition.... read more


Products  |  Press  |  Site Map  |  Technologies  |  Terms of Use  |  Privacy Policy
© 2017 SBP Romania. All rights reserved.