[Bug 823096] Review Request: nvidia-texture-tools - Collection of image processing and texture manipulation tools

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https://bugzilla.redhat.com/show_bug.cgi?id=823096

--- Comment #3 from pcpa <paulo.cesar.pereira.de.andrade at gmail.com> 2012-05-19 00:51:00 EDT ---
Thanks for noticing it.

A grep -ri s3tc shows only references to it in
src/nvtt/squish/texture_compression_s3tc.txt

otherwise, the only other reference is in
src/nvtt/CompressDXT.cpp

#if defined(HAVE_S3QUANT)
#include "s3tc/s3_quant.h"
#endif

and HAVE_S3QUANT is not defined.

and the actual code, in the same file is also
inside an inclusion guard:

#if defined(HAVE_S3QUANT)
void nv::s3CompressDXT1(const Image * image, const nvtt::OutputOptions::Private
& outputOptions)
{
...
}
#endif

Actually, that same source also has another

#if defined(HAVE_ATITC)
#include "atitc/ATI_Compress.h"
#endif

and a void nv::atiCompressDXT1 function compiled
if HAVE_ATITC is defined.

So, from my understanding, there is no binary code
using it, neither exposing interfaces to it.

But there is source code that is not compiled,
that may interface those if the devel/runtime is
detected at build time.

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