[Piglit] [PATCH 00/17] Remove dependency on libGLU
idr at freedesktop.org
Tue Sep 22 08:36:25 PDT 2015
I went to build piglit on a fresh Fedora 22 install yesterday, and the
build stopped when libGLU could not be found. I thought, "Why is piglit
linking with libGLU?!?" For the most part, it's linking with libGLU
because it can. Patch 1 fixes that.
There are six places in piglit that actually use functions from GLU.
The remainder of the series removes these uses.
- polygon-offset uses gluProject. After a bit of cleaning in patches 2
through 6, patch 7 replaces gluProject with an inline version. Patch
8 contains code that was used to verify my implementation of
gluProject. This will *not* be pushed.
- Several places in clean used gluErrorString. These were replaced in
patch 9 with piglit_get_gl_error_name.
- Patch 10 replaces a call to gluOrtho2D with glOrtho. Given that
gluOrtho2D just adds two constant parameters "for you," I'm not sure
why this function ever existed in GLU.
- Patch 11 removes an unused method that called gluBuild2DMipmaps.
- Patch 12 replaces another call to gluBuild2DMipmaps with
glTexImage2D. The filters on the texture were configured such that
the other mipmaps were not necessary.
- fbo-depth-sample-compare uses gluSphere to generate a sphere model.
After a bit of cleaning in patches 14 and 15, patch 16 adds a simple
sphere tessellator to replace it.
With these changes, I was able to build piglit on a Fedora 22 system
that did not have the mesa-libGLU-devel package installed.
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