From afd1e9be1714eb95c3b797becb15bebaad9e6646 Mon Sep 17 00:00:00 2001 From: Roland Scheidegger Date: Wed, 7 Feb 2018 05:03:42 +0100 Subject: [PATCH] u_simple_shaders: fix mask handling in util_make_fragment_tex_shader_writemask The writemask handling was busted, since writing defaults to output meant they got overwritten by the tex sampling anyway. Albeit the affected components were undefined, so maybe with some luck it still would have worked with some drivers - if not could as well kill it... (This would have affected u_blitter but not u_blit since the latter always used xyzw mask.) Reviewed-by: Brian Paul --- src/gallium/auxiliary/util/u_simple_shaders.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/gallium/auxiliary/util/u_simple_shaders.c b/src/gallium/auxiliary/util/u_simple_shaders.c index 9679545..a301c05 100644 --- a/src/gallium/auxiliary/util/u_simple_shaders.c +++ b/src/gallium/auxiliary/util/u_simple_shaders.c @@ -275,7 +275,7 @@ util_make_fragment_tex_shader_writemask(struct pipe_context *pipe, if (writemask != TGSI_WRITEMASK_XYZW) { struct ureg_src imm = ureg_imm4f( ureg, 0, 0, 0, 1 ); - ureg_MOV( ureg, out, imm ); + ureg_MOV(ureg, temp, imm); } if (tex_target == TGSI_TEXTURE_BUFFER) -- 2.7.4