Compatible with:
DOS
Maximite CMM MM150 MM170 MM+ MMX Picromite ArmiteL4
Armite F4 ArmiteH7 Picomite CMM2
Syntax:
BLIT x1, y1, x2, y2, w, h [,page] [,orientation]
BLIT READ [#]b, x, y, w, h [,pagenumber]
BLIT WRITE [#]b, x, y [,orientation]
BLIT CLOSE [#]b
Description:
BLIT x1, y1, x2, y2, w, h [,page] [,orientation]
Copy one section of the display screen to another part of the display.
The source coordinate is 'x1' and 'y1'. The destination coordinate is 'x2' and
'y2'.
The width of the screen area to copy is 'w' and the height is 'h'. 'page' is the
page number that the image data is read from; it is then written to the current
write page as specified by the PAGE WRITE n command. If 'page' is omitted the
data is read from the write page.
Set the page to FRAMEBUFFER to read from the framebuffer – see the FRAMEBUFFER
command.
All arguments are in pixels and the source and destination can overlap.
The optional 'orientation' parameter specifies how the section of the screen is
changed as it is copied.
It is the bitwise AND of the following values:
&B001 = mirrored left to right
&B010 = mirrored top to bottom
&B100 = don't copy transparent pixels
BLIT READ [#]b, x, y, w, h [,pagenumber]
BLIT READ will copy a portion of the display to the memory buffer '#b'.
The source coordinate is 'x' and 'y' and the width of the display area to copy
is 'w' and the height is 'h'.
When this command is used the memory buffer is automatically created and
sufficient memory allocated.
The optional parameter page number specifies which page is to be read. The
default is the current write page.
This buffer can be freed and the memory recovered with the BLIT CLOSE
command.
Set the pagenumber to FRAMEBUFFER to read from the framebuffer – see the FRAMEBUFFER
command
BLIT WRITE [#]b, x, y [,orientation]
BLIT WRITE will copy the memory buffer '#b' to the display. The destination
coordinate is 'x' and 'y' using the width/height of the buffer.
The optional 'orientation' parameter defaults to 4 and specifies how the stored
image data is changed as it is written out.
It is the bitwise AND of the following values:
&B001 = mirrored left to right
&B010 = mirrored top to bottom
&B100 = don't copy transparent pixels
BLIT CLOSE [#]b
BLIT CLOSE will close the memory buffer '#b' to allow it to be used
for another BLIT READ operation and recover the memory used.
Notes:
Sixty four buffers are available ranging from #1 to #64
When specifying the buffer number the # symbol is optional.
All other arguments are in pixels.
Last edited: 15 December, 2020