Skia side RGB to YUV gpu conversion

tests/ImageGeneratorTest.cpp

+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "SkImageGenerator.h"
+#include "Test.h"
+
+DEF_TEST(ImageGenerator, reporter) {
+    SkImageGenerator ig;
+    SkISize sizes[3];
+    sizes[0] = SkISize::Make(200, 200);
+    sizes[1] = SkISize::Make(100, 100);
+    sizes[2] = SkISize::Make( 50,  50);
+    void*   planes[3] = { NULL };
+    size_t  rowBytes[3] = { 0 };
+
+    // Check that the YUV decoding API does not cause any crashes
+    ig.getYUV8Planes(sizes, NULL, NULL);
+    ig.getYUV8Planes(sizes, planes, NULL);
+    ig.getYUV8Planes(sizes, NULL, rowBytes);
+    ig.getYUV8Planes(sizes, planes, rowBytes);
+
+    int dummy;
+    planes[0] = planes[1] = planes[2] = &dummy;
+    rowBytes[0] = rowBytes[1] = rowBytes[2] = 250;
+
+    ig.getYUV8Planes(sizes, planes, rowBytes);
+}