From d2b9b1c348ba71189792f1f6ba6c450729cd9a12 Mon Sep 17 00:00:00 2001
From: Ansis Brammanis <brammanis@gmail.com>
Date: Fri, 1 Apr 2016 17:23:46 -0700
Subject: [core] always set activeTexture before binding a texture

---
 include/mbgl/gl/gl_values.hpp | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'include/mbgl/gl/gl_values.hpp')

diff --git a/include/mbgl/gl/gl_values.hpp b/include/mbgl/gl/gl_values.hpp
index a5d413f5af..2ebfe2e687 100644
--- a/include/mbgl/gl/gl_values.hpp
+++ b/include/mbgl/gl/gl_values.hpp
@@ -240,6 +240,19 @@ struct LineWidth {
     }
 };
 
+struct ActiveTexture {
+    using Type = GLint;
+    static const Type Default;
+    inline static void Set(const Type& value) {
+        MBGL_CHECK_ERROR(glActiveTexture(value));
+    }
+    inline static Type Get() {
+        Type activeTexture;
+        MBGL_CHECK_ERROR(glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTexture));
+        return activeTexture;
+    }
+};
+
 #ifndef GL_ES_VERSION_2_0
 
 struct PixelZoom {
-- 
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