From: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Date: Mon, 31 Jul 2017 12:07:05 +0000 (+0200)
Subject: mesa: only check errors when the state change in glProvokingVertex()
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c787477378e2f79e1ceef23286998f528e6d02f0;p=mesa.git

mesa: only check errors when the state change in glProvokingVertex()

When this GL call is a no-op, it should be a little faster.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
---

diff --git a/src/mesa/main/light.c b/src/mesa/main/light.c
index 245692a54c2..f52ed8ed25c 100644
--- a/src/mesa/main/light.c
+++ b/src/mesa/main/light.c
@@ -73,6 +73,9 @@ _mesa_ProvokingVertex(GLenum mode)
    if (MESA_VERBOSE&VERBOSE_API)
       _mesa_debug(ctx, "glProvokingVertexEXT 0x%x\n", mode);
 
+   if (ctx->Light.ProvokingVertex == mode)
+      return;
+
    switch (mode) {
    case GL_FIRST_VERTEX_CONVENTION_EXT:
    case GL_LAST_VERTEX_CONVENTION_EXT:
@@ -82,9 +85,6 @@ _mesa_ProvokingVertex(GLenum mode)
       return;
    }
 
-   if (ctx->Light.ProvokingVertex == mode)
-      return;
-
    FLUSH_VERTICES(ctx, _NEW_LIGHT);
    ctx->Light.ProvokingVertex = mode;
 }