From 38a1479fe137b9bed3bdd1078b24f844c3af4863 Mon Sep 17 00:00:00 2001 From: Keith Whitwell Date: Mon, 27 Jul 2009 11:23:51 +0100 Subject: llvmpipe: cope with nr_cbufs == 0 Disable blend code when no color buffer --- src/gallium/drivers/llvmpipe/lp_quad_blend.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) (limited to 'src') diff --git a/src/gallium/drivers/llvmpipe/lp_quad_blend.c b/src/gallium/drivers/llvmpipe/lp_quad_blend.c index 0ebe0e6c51f..fe6d30d7c86 100644 --- a/src/gallium/drivers/llvmpipe/lp_quad_blend.c +++ b/src/gallium/drivers/llvmpipe/lp_quad_blend.c @@ -924,6 +924,13 @@ single_output_color(struct quad_stage *qs, } } +static void +blend_noop(struct quad_stage *qs, + struct quad_header *quads[], + unsigned nr) +{ +} + static void choose_blend_quad(struct quad_stage *qs, @@ -934,9 +941,12 @@ choose_blend_quad(struct quad_stage *qs, const struct pipe_blend_state *blend = llvmpipe->blend; qs->run = blend_fallback; - - if (!llvmpipe->blend->logicop_enable && - llvmpipe->blend->colormask == 0xf) + + if (llvmpipe->framebuffer.nr_cbufs == 0) { + qs->run = blend_noop; + } + else if (!llvmpipe->blend->logicop_enable && + llvmpipe->blend->colormask == 0xf) { if (!blend->blend_enable) { qs->run = single_output_color; -- cgit v1.2.3