This reverts commit 943aed0de3 and f76e04bf4d
The latter caused a test failure: `sequencer_render_transform`
Reverting since the fix is not obvious (to me), and people are
away for the weekend.
Improvement of the IMB_transform function by separating the UVWrapping
method from the color interpolation function. This would allow us to
perform uv wrapping operations separate from the interpolation function.
Currently this wrapping is only supported when interpolating colors.
This change would allow us to perform it on non-color image buffers.
Reduce the inner loop of IMB_transform by extracting writing to an
output buffer in a template. This reduces a branch in the inner loop and
would allow different number of channels in the future.
