| Commit message (Collapse) | Author | Age | Files | Lines |
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This caches sixel output. Works best when the line height is a multiple
of 6px, but should still be faster than the previous solution everywhere
else too (simply by virtue of encoding separate images in parallel).
Next step: actual color quantization
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SRCtype and DSTtype were mixed up.
See https://todo.sr.ht/~bptato/chawan/14
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It works fine AFAICT, just missing VP8 deblocking filters, so lossy
WebP images don't look great.
I have extended the API a bit to allow reading from stdin, not just
paths. Otherwise, it's the same as matanui159/jebp.
TODO: add loop filters
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clang complains about this
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Saves bandwidth; it's especially useful over SSH. Still not sure if this
is the right solution, since it now needs two select cycles instead
of one, and it does yet another copy of the image. (Unnecessarily,
because stbi cannot stream its output, and stbiw cannot stream its
input.)
Also, to save memory, we now discard decoded images of buffers that are
not being viewed.
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;_;
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* resize images with stb_image_resize
* use tee for output handle redirection (redirectToFile blocks)
* cache original image files
* accept lseek in sandbox
* misc stbi fixes
For now, I just pulled in stb_image_resize v1. v2 is an extra 150K in
size, not sure if it's worth the cost. (Either way, we can always switch
later if needed, since the API is almost the same.)
Next step: move sixel/kitty encoders to CGI, and cache their output in
memory instead of the intermediate RGBA representation.
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Now we have decoders for gif, jpeg, bmp. Also, the in-house PNG decoder
has been replaced in favor of the stbi implementation; this means we
no longer depend on zlib, since stbi comes with a built in inflate
implementation.
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* multi-processed and sandboxed PNG decoding & encoding (through local
CGI)
* improved request body passing (including support for output id as
response body)
* simplified & faster blob()/text() - now every request starts
suspended, and OngoingData.buf has been replaced with loader's
buffering capability
* image caching: we no longer pull bitmaps from the container after
every single getLines call
Next steps: replace our bespoke PNG decoder with something more usable,
add other decoders, and make them stream.
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