Timothy Miller wrote:
On 8/22/06, James Richard Tyrer <[EMAIL PROTECTED]> wrote:
We can use the drawing engine to do hardware scaling,
Well then it wouldn't be hardware scaling, would it?
Are you saying the drawing engine isn't hardware?
No, but if you are using a program to run a piece of hardware then you
are using software.
A hardware scan converter is all hardware (six 8 bit (but only 8 bits
out) multipliers, three adders some counters, comparator, modulo &
subtraction, and two 1-x functions. Or, if there are only certain
conversions allowed, much of this could be ROMed.
and there will be colourspace conversion.
We should have that in hardware. The method from the MS site can
be implemented with 12 8x8 (some 8x9) bit integer multipliers and a
bunch of adders (22 bits or so).
We think we can do it with even less hardware.
Yes, I stated the worst case.
Didn't mention that we could probably pipeline it somehow to require
only three multipliers.
Or without using up multipliers that we need for the drawing engine.
Yep, chip real estate is always an issue.
--
JRT
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