[GEM-dev] image quality when saving

[IOhannes m zmoelnig]

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On 2011-06-21 20:07, cyrille henry wrote:
> hello,
> 
> i now have an error compiling the svn (rev 4078)
> 
> 

> libtool: compile:  g++ -DHAVE_CONFIG_H -I. -I.. -DHAVE_VERSION_H -DPD
> -I/usr/include/FTGL -I/usr/include/freetype2 -g -O2 -fPIC
> -freg-struct-return -O3 -falign-loops -falign-functions -falign-jumps
> -funroll-loops -ffast-math -mmmx -MT libBase_la-GemPixUtil.lo -MD -MP
> -MF .deps/libBase_la-GemPixUtil.Tpo -c GemPixUtil.cpp  -fPIC -DPIC -o
> .libs/libBase_la-GemPixUtil.o
> GemPixUtil.cpp: In member function ‘virtual void
> imageStruct::fromRGBA(const unsigned char*)’:

ok, i understand the reason for the problem (me suddenly starting to
flag constant parameters as "const", which makes some problems with
legacy code that did not do so)

i had fixed all issues visible in my compilation, but it turns out i had
compiled without sse2 support (and without Altivec support as well), and
there were some functions hidden in the optimized routines that slipped
my attention.

the problems should be fixed now (rev.4080)


what i don't understand is, why your system builds SSE2 code at all.
you probably want that anyhow, so you don't care so much; but there is
no indication in your compiler-flags telling it to enable sse (should be
"-msse2" somewhere)
which compiler are you using?
here it says
$ g++ --version
g++ (Debian 4.6.0-10) 4.6.1 20110526 (prerelease)


mfgasdr
IOhannes
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