preferences for ImageEncoders

[Kaeru Gaman]

it would be nice to be able to set more Values when using ImageEncoders for SaveImage/SaveSprite.

e.g. for JPG:
Quality 0-100
[] progressive JPG
[] grayscale JPG
[] Disable color subsampling

maybe SetJPGEncoderPreferences(.....

[AND51]

Why including a new command?
I would prefer using the Flag-Parameter at SaveImage/Sprite and using constants.

[Kaeru Gaman]

because different Encoders have different numbers of parameters...

there are more than the above for JPG,
for PNG it's only compression 0-9 and an additional transparent color if without alpha.

[AND51]

I have no problem with implementing a new command (if Fred agrees with your idea).
But basically I prefer using existing commands. Maybe Fred can extend the Save-Commands like this:

Code: Select all

SaveImage(#Image, FileName$[, Flags[, Mode])

Imagine, you want to save more than 1 image at once but with different settings. Then you've got much t write:

Code: Select all

SetJPEGSettings(#PB_JPEG_Gray)
SaveImage(...)
SetJPEGSettings(#PB_JPEG_Quality, 95)
SaveImage(...)
; and so on

In my opionion, this would be a disadvantage.

I suggest to await Fred's agreement, otherwise we don't need to think about the 'how'.

[Kaeru Gaman]

also I can construct a scenario, where you want to save a hundred pictures with the same settings... so what? :roll:

[AND51]

So what? When saving images with the SAME settings you...

Just create a macro...
Or use a loop instead...

[Kaeru Gaman]

are you often selling the leather before the calf is born?

[AND51]

are you often selling the leather before the calf is born?

No idea what to say now?

I suggest to await Fred's agreement, otherwise we don't need to think about the 'how'.