Samsung S3C6400X User Manual page 536

GRAPHICS 2D
COORD_0
COORD_2
X-INCR
Y-INCR
FG_COLOR
CMDR_0
Bit Block Transfer
A Bit Block Transfer is a transformation of a rectangular block of pixels. Typical applications include copying a
portion of image to another location, combining to bitmap patterns by Raster Operation, changing the dimension of
a rectangular image and so on.
FIMG-2D can render image in Transparent Mode. In this mode, the pixels having the same color with blue screen
color (BS_COLOR) are not written to the destination image, resulting in a transparent effect. The Transparent
Mode is illustrated in the following image, in which the BS_COLOR is set to white and the destination image is
blue.
FIMG-2D supports both host-to-screen mode and memory-to-screen mode of BLT.
Related Registers
COORD_0
COORD_1
COORD_2
COORD_3
X-INCR
18-4
Coordinate of the starting point
Coordinate of the ending point ( ignored if a point is rendered )
X increment value ( ignored if x-axis is the Major Axis or a point is rendered)
Y increment value ( ignored if y-axis is the Major Axis or a point is rendered)
The color of the drawn line/point
Configure the line/point drawing parameters, such as whether the Major-Axis is x-
axis or y-axis, whether to draw a line or a point, and so on. Note that writing to this
register starts the rendering process.
Coordinate of the leftmost topmost coordinate of the source image
Coordinate of the rightmost bottommost coordinate of the source image
Coordinate of the leftmost topmost coordinate of the destination image
Coordinate of the rightmost bottommost coordinate of the destination image
X increment value of the source image coordinates. If it is greater than 1, the image
is shrunk horizontally; smaller than 1, stretched. This value is ignored when S bit in
S3C6400X RISC MICROPROCESSOR