From d9546b0c5d1a5136a92276cdd7c14883f0c62737 Mon Sep 17 00:00:00 2001
From: Gurchetan Singh <gurchetansingh@chromium.org>
Date: Wed, 11 May 2016 13:32:09 -0700
Subject: i965: Integrate precise trig into configuration infrastructure

With this change, to enable precise SIN and COS instructions
on Intel hardware, one can put

<option name="precise_trig" value="true"/>

in the proper drirc file.

V2: Make option name more generic

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Stephane Marchesin <stephane.marchesin@gmail.com>
---
 src/mesa/drivers/dri/i965/brw_context.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/mesa/drivers/dri/i965/brw_context.c')

diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c
index 97dc226..7bbc128 100644
--- a/src/mesa/drivers/dri/i965/brw_context.c
+++ b/src/mesa/drivers/dri/i965/brw_context.c
@@ -803,6 +803,9 @@ brw_process_driconf_options(struct brw_context *brw)
 
    brw->precompile = driQueryOptionb(&brw->optionCache, "shader_precompile");
 
+   brw->intelScreen->compiler->precise_trig =
+      driQueryOptionb(&brw->optionCache, "precise_trig");
+
    ctx->Const.ForceGLSLExtensionsWarn =
       driQueryOptionb(options, "force_glsl_extensions_warn");
 
-- 
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