From bab16b070f95687ec11d43e55f3dd6e69f96a576 Mon Sep 17 00:00:00 2001 From: Vito Caputo Date: Mon, 4 Sep 2023 15:06:44 -0700 Subject: til: support multi-pass rendering Modules can now use the til_module_t.finish_frame() return value to trigger re-rendering by returning 1, returning 0 finishes the frame. A smattering of til_module_t.finish_frame() implementations were largely mechanically updated to match this change by returning 0, since nothing actually uses multi-pass rendering yet. The impetus for this is experimenting with the flow module doing two passes of threaded rendering per frame. A first pass to sample the flow field and update the elements, per-cpu, but drawing nothing. Then a second pass to render the elements in a tiled manner. --- src/til.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'src/til.c') diff --git a/src/til.c b/src/til.c index 5a295a5..8fa3b48 100644 --- a/src/til.c +++ b/src/til.c @@ -238,6 +238,7 @@ static void module_render_fragment(til_module_context_t *context, til_stream_t * module = context->module; +render_again: if (module->prepare_frame) { til_frame_plan_t frame_plan = {}; @@ -269,7 +270,8 @@ static void module_render_fragment(til_module_context_t *context, til_stream_t * } if (module->finish_frame) { - module->finish_frame(context, stream, ticks, fragment_ptr); + if (module->finish_frame(context, stream, ticks, fragment_ptr) > 0) + goto render_again; touched++; } -- cgit v1.2.1