Dalsa PC2-CamLink, User Manual

Page: 101 / 133

PC2-CamLink User's Manual Part II: Sapera LT
•
97
•
Count and Size : Select the number of frame buffers and the image size here.
•
Type – Contiguous : Frame buffers are allocated in contiguous system memory (single memory
block - no segmentation).
•
Type – Scatter-Gather : Frame buffers are allocated throughout system memory in noncontiguous
memory (paged pool). Pages are locked in physical memory so a scatter-gather list can be
constructed. This type allows for the allocation of very large size buffers or large buffer counts.
•
Type – Off-screen Video : The buffer is allocated in off-screen video memory and uses the
display adapter hardware to perform a fast copy from video memory to video memory.
•
Type – Overlay : The frame buffer is allocated in video memory where the display adapter overlay
hardware uses color-keying to view the overlay buffer.
•
Format : Shows frame buffer pixel formats as supported by the hardware and camera files used.
Using Sapera CamExpert with PC2-CamLink
CamExpert is the camera interfacing tool for frame grabber boards supported by the Sapera library.
CamExpert generates the Sapera camera configuration file (
yourcamera.ccf ) based on timing and
control parameters entered. For backward compatibility with previous versions of Sapera, CamExpert
also reads and writes the *.cca and *.cvi camera parameter files.