Llimage libtest

Introduction

Looking into <jira>STORM-746</jira>, we realized we needed an applet to quickly and reliably test JPEG2000 compression/decompression strategies. We also realized that we could use such an applet to run texture compression/decompression tests as part of the set of integration tests we're running when building the viewer.

So, instead of doing a quick independent hack, we decided to build an llimage_libtest applet that can be run as part of the test suite.

Objectives

• Allow on-going test of texture compression/decompression code without having to launch the viewer
• Allow consistent compression/decompression performance measurements
• Allow quick test of alternative compress/decompress strategies and techniques
• Allow simple j2c/jpg image conversion

Quick Spec

• Add llimage_libtest as part of the integration test suite: indra/integration_tests/llimage_libtest/llimage_libtest.cpp
• Command line only executable (no display window after decompression)
• Accept a variety of arguments on the command line
• Read jpeg or png images and output j2c
• Read j2c images and output a jpeg or png
• Output image properties: size, components, histograms and other stats
• Output compress/decompress performances

Links

• <jira>STORM-987</jira>