til,til_fb: introduce a noop_per_cpu fragmenter

This is intended to perhaps be of use for threaded rendering that
don't actually produce pixels during their render phase, but
still need n_cpus fragments to dispatch the parallel work keying
off the fragment.number.

Such a renderer might then put its pixels on-screen serially @
finish_frame(), or maybe the rendering functions will get a
return value to trigger multi-pass rendering on the same tick.

1 files changed, 7 insertions, 0 deletions

diff --git a/src/til.c b/src/til.c
index e1f15cc..5a295a5 100644
--- a/src/til.c
+++ b/src/til.c
@@ -629,6 +629,13 @@ int til_module_settings_finalize(const til_module_t *module, const til_settings_
 }
 
 
+/* generic noop fragmenter that does no subfragmenting at all, producing a whole fragment per-cpu */
+int til_fragmenter_noop_per_cpu(til_module_context_t *context, const til_fb_fragment_t *fragment, unsigned number, til_fb_fragment_t *res_fragment)
+{
+	return til_fb_fragment_noop_single(fragment, context->n_cpus, number, res_fragment);
+}
+
+
 /* generic fragmenter using a horizontal slice per cpu according to context->n_cpus */
 int til_fragmenter_slice_per_cpu(til_module_context_t *context, const til_fb_fragment_t *fragment, unsigned number, til_fb_fragment_t *res_fragment)
 {