A DSP-Based Three- Dimensional Graphics System APPLICATION REPORT: SPRA402 Nat Seshan Digital Signal Processor Products Semiconductor Group Texas Instruments Digital Signal Processing Solutions
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A DSP-Based Three-Dimensional GraphicsSystem
APPLICATION REPORT: SPRA402
Nat SeshanDigital Signal Processor ProductsSemiconductor Group Texas Instruments
Digital Signal Processing Solutions
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A DSP-Based Three-Dimensional Graphics System 5
An All-Digital Automatic Gain Control
Abstract
One way to improve the performance of a graphics system is toplace an advanced digital signal processor between the hostprocessor and the video controller. This book, the author'sbachelor's thesis at MIT, discusses the suitability of theTMS320C30 Digital Signal Processor to that task.
The book begins with a listing of the factors that make theTMS320C30 the digital signal processor of choice. It is followed bya real world scenario that shows the type of need this type ofsystem could meet and how this thesis could be tested. Beginningwith an example of a mechanical engineer's need to create, storeand adjust 3D objects and render the images on a video display,the books explores the instructional model of how a graphicssystem can be designed using an advanced digital signalprocessor.
Topics covered include:
q An overview of the implementation
q Representation of graphics elements
q DPS command execution
q The rendering subsystem (including information on theTMS34010 Graphics System Processor and the TMS34010Software development board)
q Possible improvements
q References
There are several supporting graphics and tables including:
q An example of a full scale graphics pipeline
SPRA402
6 A DSP-Based Three-Dimensional Graphics System
q A simple three-processor graphics pipeline
q Modified TMS34010 software development board blockdiagram
q Transformation matrices and equations
q Comparison of Intel and TMS320C30 32-bit floating-pointformats
q TMS34010 signals controlling host port interface
q TMS34010 host control register fields
q Mapping of TMS34010 host control register fields
SPRA402
A DSP-Based Three-Dimensional Graphics System 7
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