Creating functions for uploading a mipmapped texture.

src/core/SkMipMapLevel.cpp

+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+
+#include "SkMipMapLevel.h"
+
+SkMipMapLevel::SkMipMapLevel(const void* texels, size_t rowBytes, uint32_t width, uint32_t height)
+    : fTexels(texels)
+    , fRowBytes(rowBytes)
+    , fWidth(width)
+    , fHeight(height)
+{
+}
+
+SkMipMapLevel::SkMipMapLevel(SkMipMapLevel&& rhs)
+    : fTexels(rhs.fTexels)
+    , fRowBytes(rhs.fRowBytes)
+    , fWidth(rhs.fWidth)
+    , fHeight(rhs.fHeight)
+{
+    rhs.fTexels = nullptr;
+    rhs.fRowBytes = 0;
+    rhs.fWidth = 0;
+    rhs.fHeight = 0;
+}
+
+SkMipMapLevel& SkMipMapLevel::operator =(SkMipMapLevel&& rhs)
+{
+    fTexels = rhs.fTexels;
+    fRowBytes = rhs.fRowBytes;
+    fWidth = rhs.fWidth;
+    fHeight = rhs.fHeight;
+
+    rhs.fTexels = nullptr;
+    rhs.fRowBytes = 0;
+    rhs.fWidth = 0;
+    rhs.fHeight = 0;
+
+    return *this;
+}