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SGI Developer Toolbox 6.1
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SGI Developer Toolbox 6.1 - Disc 1.iso
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toolbox
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opengl
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utilities
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README
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~4Dgifts/toolbox/src/exampleCode/opengl/utilities README
This tree contains utilities useful for those programming OpenGL. At
present the two items included herein hail from sgi's ftp site,
sgigate.sgi.com:~ftp/pub/opengl/contrib:
isfast: routines to measure if a given OpenGL feature is fast or
not. Performance measurement covers issues like displaying
a program over a network or locally, flushing the graphics
pipeline properly, etc. Measuring all features needed by
an app can be time-consuming. Saving performance
measurements and reusing them whenever possible is an
advantage. And measuring operations other than graphics--
disk and network throughput, processing time for a
particular set of data, performance on uniprocessor and
MP systems--will also be important.
isfast contains two libraries which can help with all the
above-mentioned issues:
libpdb: "Performance DataBase" routines for measuring
execution rates & maintaining a simple database.
libisfast: set of routines demonstrating libpdb answering
common questions about performance of OpenGL
features (using entirely subjective criteria).
These libraries can't substitute for comprehensive
benchmarking and performance analysis, and don't replace
more sophisticated tools (like IRIS Performer and IRIS
Inventor) that optimize application performance in a
variety of ways. However, they can handle simple tasks,
and that's all some programmers need.
xglinfo: a utility for displaying information about an X server
supporting the OpenGL extension, especially with regards
to visuals. It is used to examine the capabilities of a
server, the predefined values for various parameters used
in communicating between clients and the server, and the
different types of screens and visuals that are available.
It includes the same set of information as xdpyinfo, but
is extended to display information about OpenGL visuals
as well. In contrast to xdpyinfo the amount and form of
information displayed is controllable by command line
arguments.