Book Image

Hands-On High Performance Programming with Qt 5

By : Marek Krajewski
5 (1)
Book Image

Hands-On High Performance Programming with Qt 5

5 (1)
By: Marek Krajewski

Overview of this book

Achieving efficient code through performance tuning is one of the key challenges faced by many programmers. This book looks at Qt programming from a performance perspective. You'll explore the performance problems encountered when using the Qt framework and means and ways to resolve them and optimize performance. The book highlights performance improvements and new features released in Qt 5.9, Qt 5.11, and 5.12 (LTE). You'll master general computer performance best practices and tools, which can help you identify the reasons behind low performance, and the most common performance pitfalls experienced when using the Qt framework. In the following chapters, you’ll explore multithreading and asynchronous programming with C++ and Qt and learn the importance and efficient use of data structures. You'll also get the opportunity to work through techniques such as memory management and design guidelines, which are essential to improve application performance. Comprehensive sections that cover all these concepts will prepare you for gaining hands-on experience of some of Qt's most exciting application fields - the mobile and embedded development domains. By the end of this book, you'll be ready to build Qt applications that are more efficient, concurrent, and performance-oriented in nature
Table of Contents (14 chapters)

Summary

In this chapter, we looked at the vast theme of graphics performance. It's a very deep topic given the recent advances in graphics hardware and APIs. Additionally, there is an almost infinite number of Qt APIs for drawing and painting as a consequence of its long history.

Nonetheless, we started by learning about modern graphics hardware, the OpenGL pipeline as its abstract programming model, and its possible bottlenecks. Then we moved to an overview of the Qt's graphics APIs and learned which ones should still be used and which should be avoided. Next, we had a closer look at the two most important parts of Qt: the Qt Widget's and Qt Quick modules. We learned about their internal mechanisms and techniques to improve their performance. We also had a quick look at the relatively new and very promising Qt 3D module.

With this amount of information, you are...