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<a href="https://github.com/mosra/magnum/commit/<a class=hub.com/mosra/magnum/commit/0371ebd9a382860b2b81c4e117fc0709cd9eff61">0371ebd9a<a href="https://github.com/mosra/magnum/commit/0371ebd9a382860b2b81c4e117fc0709cd9eff61">&quot;&gt;SVGA3D: work around broken glTex[ture][Sub]Image*D() for arrays.

SVGA3D has broken handling of glTex[ture][Sub]Image*D() for 1D arrays,
2D arrays, 3D textures and cube map textures where it uploads just the
first slice in the last dimension. This is only with copies from host
memory, not with buffer images. Seems to be fixed in Mesa 13, but I have
no such system to verify that on. Relevant commit in the Mesa sources:
https://github.com/mesa3d/mesa/commit/</a><a class="double-link" href="https://github.com/mosra/magnum/commit/<a class="double-link" href="https://github.com/mosra/magnum/commit/2aa9ff0cda1f6ad97c83d5583fab7a84efabe19e">2aa9ff0cd</a>">2aa9ff0cd</a><a href="https://github.com/mosra/magnum/commit/0371ebd9a382860b2b81c4e117fc0709cd9eff61">

This is one of the uglier workarounds -- I had to reintroduce multiple
code paths for glTexImage() which were removed when implementing ARB_DSA
and the workaround consists of basically a bunch of functions that are
slicing the image and calling the original implementations with each
slice.

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