From 7e999e37a5cf65e466091f4d8eeb36a6cea20f52 Mon Sep 17 00:00:00 2001 From: Vito Caputo Date: Fri, 8 Sep 2017 19:09:57 -0700 Subject: *: use fragment generator 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. --- src/modules/sparkler/sparkler.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) (limited to 'src/modules/sparkler') diff --git a/src/modules/sparkler/sparkler.c b/src/modules/sparkler/sparkler.c index a2210dc..13b1563 100644 --- a/src/modules/sparkler/sparkler.c +++ b/src/modules/sparkler/sparkler.c @@ -18,6 +18,7 @@ typedef struct sparkler_context_t { particles_t *particles; + unsigned n_cpus; } sparkler_context_t; extern particle_ops_t simple_ops; @@ -58,12 +59,19 @@ static void sparkler_destroy_context(void *context) } -static void sparkler_prepare_frame(void *context, unsigned ncpus, fb_fragment_t *fragment, rototiller_frame_t *res_frame) +static int sparkler_fragmenter(void *context, const fb_fragment_t *fragment, unsigned num, fb_fragment_t *res_fragment) { sparkler_context_t *ctxt = context; - fb_fragment_divide(fragment, ncpus, res_frame->fragments); - res_frame->n_fragments = ncpus; + return fb_fragment_divide_single(fragment, ctxt->n_cpus, num, res_fragment); +} + +static void sparkler_prepare_frame(void *context, unsigned ncpus, fb_fragment_t *fragment, rototiller_fragmenter_t *res_fragmenter) +{ + sparkler_context_t *ctxt = context; + + *res_fragmenter = sparkler_fragmenter; + ctxt->n_cpus = ncpus; particles_sim(ctxt->particles); particles_add_particles(ctxt->particles, NULL, &simple_ops, INIT_PARTS / 4); -- cgit v1.2.1