Mesa (master): mesa: move check for no-op glFrontFace call earlier

[Brian Paul]

Module: Mesa
Branch: master
Commit: 61ed88b1ddf8aea6f74518bcae5c13d9bf4ae822
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=61ed88b1ddf8aea6f74518bcae5c13d9bf4ae822

Author: Brian Paul <brianp at vmware.com>
Date:   Tue Jul 21 18:44:07 2015 -0600

mesa: move check for no-op glFrontFace call earlier

If the new mode matches the current mode, there can be no error.

Reviewed-by: Anuj Phogat <anuj.phogat at gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>

---

 src/mesa/main/polygon.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/mesa/main/polygon.c b/src/mesa/main/polygon.c
index c1c3166..60af88f 100644
--- a/src/mesa/main/polygon.c
+++ b/src/mesa/main/polygon.c
@@ -93,14 +93,14 @@ _mesa_FrontFace( GLenum mode )
    if (MESA_VERBOSE&VERBOSE_API)
       _mesa_debug(ctx, "glFrontFace %s\n", _mesa_enum_to_string(mode));
 
+   if (ctx->Polygon.FrontFace == mode)
+      return;
+
    if (mode!=GL_CW && mode!=GL_CCW) {
       _mesa_error( ctx, GL_INVALID_ENUM, "glFrontFace" );
       return;
    }
 
-   if (ctx->Polygon.FrontFace == mode)
-      return;
-
    FLUSH_VERTICES(ctx, _NEW_POLYGON);
    ctx->Polygon.FrontFace = mode;