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Øyvind Kolås authored
* gegl/buffer/gegl-sampler.[ch]: (gegl_sampler_get_ptr): added a function used to prime a linear buffer with all needed samples for interpolation. For all the interpolators, removed unneded alpha multiplications (we're interpolating on premultiplied pixels), also moved linear and cubic to skip unneeded function calls in innerloop. * gegl/buffer/gegl-sampler-cubic.c: * gegl/buffer/gegl-sampler-lanczos.c: * gegl/buffer/gegl-sampler-linear.c: * gegl/buffer/gegl-sampler-nearest.c: svn path=/trunk/; revision=2489
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