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2017-09-14fb: update copyright lineVito Caputo
2017-09-14fb: s/fb_fragment_divide_single/fb_fragment_slice_single/Vito Caputo
Mechanical cosmetic change
2017-09-14fb: implement a tiling fragmenterVito Caputo
2017-09-14*: use fragment generatorVito Caputo
Rather than laying out all fragments in a frame up-front in ray_module_t.prepare_frame(), return a fragment generator (rototiller_fragmenter_t) which produces the numbered fragment as needed. This removes complexity from the serially-executed prepare_frame() and allows the individual fragments to be computed in parallel by the different threads. It also eliminates the need for a fragments array in the rototiller_frame_t, indeed rototiller_frame_t is eliminated altogether.
2017-04-22fb: add frame_{width,height} to fb_fragment_tVito Caputo
Modules need to know the overall dimensions of the frame the fragment they're rendering is part of. Previously it wasn't really necessary since the fragments supplied to the modules had always been the full page, but that's changing. This commit also changes the julia module to use the frame dimensions, others will need updating as well.
2017-01-18*: move source into src/ subdirVito Caputo
Restoring some organizational sanity since adopting autotools.
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