taesd and taesdxl support

[fszontagh]

[fszontagh]

FMI: https://github.com/madebyollin/taesd

[fszontagh]

sd.cpp only support safetensors TAESD
This safetensors file contains decoder and encoder too
just the encoder/decoder.safetensors is not working...

Related comment from SD.cpp

[fszontagh]

Some tests:
no Taesd

[INFO ] stable-diffusion.cpp:1292 - generating image: 1/1 - seed 42
[INFO ] stable-diffusion.cpp:1304 - sampling completed, taking 42.59s
[INFO ] stable-diffusion.cpp:1312 - generating 1 latent images completed, taking 42.59s
[INFO ] stable-diffusion.cpp:1314 - decoding 1 latents
[INFO ] stable-diffusion.cpp:1324 - latent 1 decoded, taking 1.09s
[INFO ] stable-diffusion.cpp:1328 - decode_first_stage completed, taking 1.09s
[INFO ] stable-diffusion.cpp:1347 - txt2img completed in 43.92s

with Taesd

[INFO ] stable-diffusion.cpp:1292 - generating image: 1/1 - seed 42
[INFO ] stable-diffusion.cpp:1304 - sampling completed, taking 45.24s
[INFO ] stable-diffusion.cpp:1312 - generating 1 latent images completed, taking 45.24s
[INFO ] stable-diffusion.cpp:1314 - decoding 1 latents
[INFO ] stable-diffusion.cpp:1324 - latent 1 decoded, taking 0.25s
[INFO ] stable-diffusion.cpp:1328 - decode_first_stage completed, taking 0.25s
[INFO ] stable-diffusion.cpp:1347 - txt2img completed in 45.68s

The latent image generation is not relevant :)