Rabbit OP7100, User Manual

Page: 60 / 126

OP7100 60 Software
• void op71XPutBitmap( int left, int top,
int width, int height, unsigned long bitmap );
Draws bitmap in the specified space. The data for the bitmap are stored
in
xmem
. Automatically calls
op71XPutFastmap
if bitmap is byte-
aligned (left-edge and width each evenly divisible by 8).
PARAMETERS:
left
is the left edge of the bitmap.
top
is the top edge of the bitmap.
width
is the width of the bitmap.
height
is the height of the bitmap.
bitmap
is the address of the bitmap in
xmem
.
• void op71XPutFastmap( int left, int top,
int width, int height, unsigned long bitmap );
Draws bitmap in the specified space. The data for the bitmap are stored
in
xmem
.
This function is like
op71XPutBitmap
, except that it is faster. The
restriction is that the bitmap must be byte-aligned.
PARAMETERS:
left
is the left edge of the bitmap.
top
is the top edge of the bitmap.
width
is the width of the bitmap.
height
is the height of the bitmap.
bitmap
is the address of the bitmap in
xmem
.
• void op71XGetBitmap( int x, int y, int bmWidth,
int bmHeight, unsigned long xBm );
Gets a bitmap from the LCD page buffer and stores it in
xmem
RAM.
Automatically calls
op71XGetFastmap
if the bitmap is byte-aligned
(the left edge and width are each evenly divisible by 8).
PARAMETERS:
x
is the left edge of the bitmap (in pixels).
y
is the top edge of the bitmap (in pixels).
bmWidth
is the width of the bitmap (in pixels).
bmHeight
is the height of the bitmap (in pixels).
xBm
is the
xmem
RAM storage address.
Figure 3-8 shows the coordinate system for the LCD pixels.