This chapter includes:
The following table may help you find information quickly:
|For information about:||See:|
|How the Neutrino Graphics Framework (GF) uses graphics drivers||Introduction to Graphics Drivers|
|Graphics drivers||Writing Your Own Driver|
|Updating existing drivers||Updating A Graphics Driver|
|The entry points your driver provides, and macros and data it uses||Graphics Driver API|
|Other useful functions||Libraries|
|How to debug a graphics driver||Debugging a Graphics Driver|
|Definitions of terms used in this guide||Glossary|
|You must use this DDK with QNX Neutrino 6.4.0 or later.|
We assume you have a basic familiarity with graphics cards, concepts, and terminology (e.g. pixels, spans, blitting, alpha-blending, chroma-keying, and raster operations).
You'll also need sufficient hardware documentation for your graphics chip in order to be able to program all the registers. A working knowledge of the C programming language is essential.
Throughout this manual, we use certain typographical conventions to distinguish technical terms. In general, the conventions we use conform to those found in IEEE POSIX publications. The following table summarizes our conventions:
|Code examples||if( stream == NULL )|
|File and pathnames||/dev/null|
|Keyboard input||something you type|
|Programming data types||unsigned short|
|Programming literals||0xFF, "message string"|
We use an arrow (→) in directions for accessing menu items, like this:
You'll find the Other... menu item under.
We use notes, cautions, and warnings to highlight important messages:
|Notes point out something important or useful.|
|Cautions tell you about commands or procedures that may have unwanted or undesirable side effects.|
|Warnings tell you about commands or procedures that could be dangerous to your files, your hardware, or even yourself.|
In our documentation, we use a forward slash (/) as a delimiter in all pathnames, including those pointing to Windows files.
We also generally follow POSIX/UNIX filesystem conventions.
To obtain technical support for any QNX product, visit the Support area on our website (www.qnx.com). You'll find a wide range of support options, including community forums.
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