From ae95b9dd9be56ad84a8a4ab5955f580c337259cb Mon Sep 17 00:00:00 2001 From: Kenneth Graunke Date: Sun, 3 Aug 2014 23:54:22 -0700 Subject: [PATCH] i965: Emit a performance warning on conditional rendering. We have a CPU-side implementation of conditional rendering; it really should be done on the GPU. It's not necessarily that hard, but nobody has gotten to fixing it yet. Signed-off-by: Kenneth Graunke Reviewed-by: Chris Forbes --- src/mesa/drivers/dri/i965/brw_draw.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/mesa/drivers/dri/i965/brw_draw.c b/src/mesa/drivers/dri/i965/brw_draw.c index 4dae7d35b1c..412c3600320 100644 --- a/src/mesa/drivers/dri/i965/brw_draw.c +++ b/src/mesa/drivers/dri/i965/brw_draw.c @@ -539,6 +539,11 @@ void brw_draw_prims( struct gl_context *ctx, assert(unused_tfb_object == NULL); + if (ctx->Query.CondRenderQuery) { + perf_debug("Conditional rendering is implemented in software and may " + "stall. This should be fixed in the driver.\n"); + } + if (!_mesa_check_conditional_render(ctx)) return; -- 2.30.2