QG82945GSE S LB2R Intel, QG82945GSE S LB2R Datasheet - Page 372

• Manufacturer Part Number: QG82945GSE S LB2R
• Description: GRAPHICS AND MEM CNTRL HUB; No. of Pins: 998; Package / Case: FCBGA; Interface Type: PCI, SATA, USB
• Manufacturer: Intel

10.4.1.7.5
10.5
Figure 21.
10.5.1
372
Advanced Deinterlacing and Dynamic Bob and Weave
Interlaced data that originates from a video camera creates two fields that are
temporally offset by 1/60 of a second. There are several schemes to deinterlace the
video stream: line replication, vertical filtering, field merging and vertical temporal
filtering. Field merging takes lines from the previous field and inserts them into the
current field to construct the frame – this is known as Weaving. This is the best solution
for images with little motion however, showing a frame that consists of the two fields
will have serration or feathering of moving edges when there is motion in the scene.
Vertical filtering or “Bob” interpolates adjacent lines rather replicating the nearest
neighbor. This is the best solution for images with motion however, it will have reduced
spatial resolution in areas that have no motion and introduces jaggies. In absence of
any other deinterlacing, these form the baseline and are supported by the (G)MCH.
Display Interfaces
The display is the defining portion of a graphics controller. The display converts a set of
source images or surfaces, combines them and sends them out at the proper timing to
an output interface connected to a display device. Along the way, the data can be
converted from one format to another, stretched or shrunk, and color corrected or
gamma converted.
Mobile Intel 945GM/GME/GMS/GU/GSE, 943/940GML and Intel 945GT
Express Chipset Display Pipe Block Diagram
Display Overview
The IGD display can be broken down into three components:
• Display Planes
• Display Pipes
• Display Ports
Secondary
Overlay
Primary
Display
Display
Cursor
Cursor
Sprite
Gamma/
Blend/
Alpha
CRC
Mux
Port
Cntl
SDVOB/
SDVOC
Functional Description
LVDS
TV OUT
DAC
Datasheet