From ac49ed0779f804f79dfe9e024bdde204aa44e62f Mon Sep 17 00:00:00 2001
From: Stephen White <senorblanco@chromium.org>
Date: Mon, 22 Jan 2018 14:09:08 -0500
Subject: [PATCH] Use a memcpy to avoid strict-aliasing warnings.

---
 src/backend/opengl/CommandBufferGL.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/backend/opengl/CommandBufferGL.cpp b/src/backend/opengl/CommandBufferGL.cpp
index d56fee70d7..c3028ab7f9 100644
--- a/src/backend/opengl/CommandBufferGL.cpp
+++ b/src/backend/opengl/CommandBufferGL.cpp
@@ -128,8 +128,10 @@ namespace backend { namespace opengl {
                                              *reinterpret_cast<GLuint*>(&mValues[stage][constant]));
                                 break;
                             case PushConstantType::Float:
-                                glUniform1f(location,
-                                            *reinterpret_cast<GLfloat*>(&mValues[stage][constant]));
+                                float value;
+                                // Use a memcpy to avoid strict-aliasing warnings.
+                                memcpy(&value, &mValues[stage][constant], sizeof(value));
+                                glUniform1f(location, value);
                                 break;
                         }
                     }