On Thu, Aug 12, 2010 at 10:02 AM, Mathieu Lacage
mathieu.lac...@sophia.inria.fr wrote:
On Thu, 2010-08-12 at 09:54 +0200, Andrea Canciani wrote:
(I would *really* love if int128_t was actually available!)
It's available on most 64bit systems (at least x86_64) with gcc as
__int128_t and
On Thu, 2010-08-12 at 09:54 +0200, Andrea Canciani wrote:
(I would *really* love if int128_t was actually available!)
It's available on most 64bit systems (at least x86_64) with gcc as
__int128_t and __uint128_t. I use this:
#if defined(HAVE___UINT128_T) and !defined(HAVE_UINT128_T)
typedef
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On 12-08-10 12:24, Soeren Sandmann wrote:
Andrea Canciani ranm...@gmail.com writes:
If we can't assume that we have a (fast) FPU,
There is a fairly common misconception that ARM CPUs never have
hardware floating point; that may be part of why
Hello
This is the second attempt at bitmap supersampling in Pixman.
Changes:
1. There is a new fast path flag called FAST_PATH_NO_SUPERSAMPLING
(self-explanatory)
2. No divisions in inner loops, but this causes a proliferation of
variables. Note: using float or double for transformation matrices
Krzysztof Kosiński tweenk...@gmail.com writes:
This is the second attempt at bitmap supersampling in Pixman.
For people who are curious, this is a big quality improvement:
original image (3200 x 2000):
http://www.daimi.au.dk/~sandmann/house.jpg
without patch:
Cairo currently does only bilinear interpolation.
This is wrong for any scale less than 1, although the artifacts do not
really appear until a scale less that .5. Bilinear cannot use more than
4 adjacent pixels in a square to produce an output pixel, and if you
scale small enough the
