I've made nice progress toward basic image i/o using gdi plus based on
snipping lots from the platimg and gl2 addons and beating my head on the
wall. My script now works with basic i/o on J6win and j6win64. I expect
it will only require a few flip_rbg's to work in J7. While following
platimg I can set the jpeg quality in 32 bit J, I have not been able to
do the same in 64 bit (only getting default quality). In platimg we see
bfh=. a. {~ 0 ". '16b' (,"1) _2 ]\ ]
EncoderQuality=: _2(3!:4)bfh'b5e45b1d4afa2d459cdd5db35105e7eb'
which is used in
params=: 3 : 0
p=. <<0
infos=. getinfos''
fmt=. (4{"1 infos) >@{~ y typendx tolower&.> 3{"1 infos
if. (0<#QUALITY) *. 'image/jpeg'-: fmt do.
p=. 1,EncoderQuality,1,EncoderParameterValueTypeLong,symdat
symget<'QUALITY'
end.
p
)
The last entry in p is a pointer the the Jpeg_quality. I like mysteries,
but can anyone explain
b5e45b1d4afa2d459cdd5db35105e7eb
to me?
Best, Cliff
However,
--
Clifford A. Reiter
Lafayette College, Easton, PA 18042
http://webbox.lafayette.edu/~reiterc/
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