2026-05-22 9:40 AM - last edited on 2026-05-22 9:48 AM by Andrew Neil
Hey,
I have my images stored compressed (ARGB8888) on NAND flash accessed via FileX. Not memory mapped, so I need to cache everything before starting the GUI.
I noticed this in the Bitmap API docs:
Bitmap::decompress — "This method is called by Bitmap::cache when required."
So does that mean I just implement BlockCopy with FileX, call Bitmap::cache(), and it handles the decompression automatically? Does it allocate for the uncompressed size and deal with the temp buffers internally?
Would save me a lot of headache if that's the case;
Thanks!
2026-05-22 9:41 AM
Is this a TouchGFX question?
2026-05-22 9:44 AM
2026-05-22 9:48 AM - edited 2026-05-22 9:49 AM
OK - moved it to the TouchGFX forum & added the label.