Intel G2120T CM8063701391600 Manuale Utente
Codici prodotto
CM8063701391600
Interfaces
30
Datasheet, Volume 1
2.4.1.4.2
Logical 128-Bit Fixed BLT and 256 Fill Engine
This BLT engine accelerates the GUI of Microsoft Windows* operating systems. The
128-bit, integrated graphics BLT engine provides hardware acceleration of block
transfers of pixel data for many common Windows operations. The BLT engine can be
used for the following:
128-bit, integrated graphics BLT engine provides hardware acceleration of block
transfers of pixel data for many common Windows operations. The BLT engine can be
used for the following:
• Move rectangular blocks of data between memory locations
• Data alignment
• To perform logical operations (raster ops)
• Data alignment
• To perform logical operations (raster ops)
The rectangular block of data does not change, as it is transferred between memory
locations. The allowable memory transfers are between—cacheable system memory
and frame buffer memory, frame buffer memory and frame buffer memory, and within
system memory. Data to be transferred can consist of regions of memory, patterns, or
solid color fills. A pattern is always 8 x 8 pixels wide and may be 8, 16, or 32 bits per
pixel.
locations. The allowable memory transfers are between—cacheable system memory
and frame buffer memory, frame buffer memory and frame buffer memory, and within
system memory. Data to be transferred can consist of regions of memory, patterns, or
solid color fills. A pattern is always 8 x 8 pixels wide and may be 8, 16, or 32 bits per
pixel.
The BLT engine expands monochrome data into a color depth of 8, 16, or 32 bits. BLTs
can be either opaque or transparent. Opaque transfers move the data specified to the
destination. Transparent transfers compare destination color to source color and write
according to the mode of transparency selected.
can be either opaque or transparent. Opaque transfers move the data specified to the
destination. Transparent transfers compare destination color to source color and write
according to the mode of transparency selected.
Data is horizontally and vertically aligned at the destination. If the destination for the
BLT overlaps with the source memory location, the BLT engine specifies which area in
memory to begin the BLT transfer. Hardware is included for all 256 raster operations
(source, pattern, and destination) defined by Microsoft, including transparent BLT.
BLT overlaps with the source memory location, the BLT engine specifies which area in
memory to begin the BLT transfer. Hardware is included for all 256 raster operations
(source, pattern, and destination) defined by Microsoft, including transparent BLT.
The BLT engine has instructions to invoke BLT and stretch BLT operations, permitting
software to set up instruction buffers and use batch processing. The BLT engine can
perform hardware clipping during BLTs.
software to set up instruction buffers and use batch processing. The BLT engine can
perform hardware clipping during BLTs.