10
image, which off-loads the CPU, optimize graphic functions.
The hardware cursor mechanism can also be used to display
patterns stored in the system memory. This pop-up icon is
very useful to display user-friendly information instantly
through simple hot key operations.
This advanced function combination allows significant
performance increases over standard Super VGA designs
and provides outstanding graphics acceleration on GUIs,
such as Microsoft
®
Windows 95
.
2.8
Highly Integrated RAMDAC
TM
& Clock
Synthesizer
The highly integrated design of the Video-107PCI -3D offers a
“no TTL” solution for cost-effective, high-performance
multimedia subsystem designs for the IBM
®
PC and
compatible notebooks. The 64-bit memory data bus
supporting SDRAM and SGRAM memory provides faster data
transfer rates for improved system throughput. The Video-
107PCI -3D has a built-in, high speed RAMDAC™. The
RAMDAC™ is composed of one 256x24 and one 256x18
color lookup table and a triple loop frequency synthesizer,
providing the read/write timing control for the Frame Buffer
Memory and the refresh of the TV/CRT display.
Video processor features include: on-chip hardware Color
Space Conversion (CSC) for faster data conversion on the fly,
Horizontal/Vertical (H/V) scaling with interpolation, edge
recovery algorithm, gamma correction, and overlay control
with different color depths from graphics. The Video-107PCI -
3D also includes a fully integrated GUI accelerator, read
cache, and command FIFO that optimize memory bandwidth
and maximize graphics performance.
2.9 Full Feature High Performance 3D Engine
The Video-107PCI -3D is equipped with an advanced
Graphics Drawing, Single Cycle 3D Graphics Engine that
performs premium 3D functions at a high level of more than
1M triangles per second. The 3D engine supports Microsoft
®
Direct3D. The 3D Engine is set up to off-load the CPU from
major 3D tasks including slope calculation, sub-pixel
positioning, and Tri-striping. By balancing 3D pipeline and
reducing parameter passing, the Video-107PCI -3D
approaches the high levels of performance. The 3D engine is
integrated with a triangle set-up engine that sets up triangles
according to the input data of triangle vertex and
