Strange error

[Michael Thaler]

On Tuesday 28 June 2005 22:42, Boudewijn Rempt wrote:

> Because it is declared inside the first if block -- which is not
> delimited with brackets but one block that as it were is the
> same as one statement after the if. If you declare a variable
> inside a block, it ceases to be referencable outside the block.

I am really too tired to continue to work on Krita. Obviously it is a pretty 
bad idea to declare variables inside a block... But I am quite happy that the 
scaling code is over 100% faster now, at least for large images and on my 
computer.

I have some more ideas how the scaling code can optimized further. Basically, 
the Mitchell filter needs 5 src pixels for every destination pixel and right 
now the scaling code is basically reading each src line five times. If I 
manage to write an algorithm that checks if we already read a line instead of 
reading it from the src image everytime, the Mitchell algorithm should become 
even faster (and all other algorithms for which the filter support is greater 
then one). So have a good night,

Michael