From 3d06c8afb5543cce88e331278d92823d88aac7b6 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marek=20Ol=C5=A1=C3=A1k?= Date: Wed, 31 Jan 2018 00:53:16 +0100 Subject: [PATCH] st/mesa: don't translate blend state when it's disabled for a colorbuffer Reviewed-by: Eric Anholt --- src/mesa/state_tracker/st_atom_blend.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/src/mesa/state_tracker/st_atom_blend.c b/src/mesa/state_tracker/st_atom_blend.c index f7327d6838c..a5f7edbcfe4 100644 --- a/src/mesa/state_tracker/st_atom_blend.c +++ b/src/mesa/state_tracker/st_atom_blend.c @@ -161,12 +161,13 @@ st_update_blend( struct st_context *st ) else if (ctx->Color.BlendEnabled && !ctx->Color._AdvancedBlendMode) { /* blending enabled */ for (i = 0, j = 0; i < num_state; i++) { + if (!(ctx->Color.BlendEnabled & (1 << i))) + continue; - blend->rt[i].blend_enable = (ctx->Color.BlendEnabled >> i) & 0x1; - - if (ctx->Extensions.ARB_draw_buffers_blend) + if (ctx->Extensions.ARB_draw_buffers_blend) j = i; + blend->rt[i].blend_enable = 1; blend->rt[i].rgb_func = translate_blend(ctx->Color.Blend[j].EquationRGB);