move SkIPoint16 to private header

Bug: skia:
Change-Id: Ib8045ac7cc24a44c4b70e73153c6faf098730b63
Reviewed-on: https://skia-review.googlesource.com/118721
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Cary Clark <caryclark@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>

1 files changed, 56 insertions, 0 deletions

diff --git a/src/core/SkIPoint16.h b/src/core/SkIPoint16.h
new file mode 100644
index 0000000000..27052b3f2a
--- /dev/null
+++ b/src/core/SkIPoint16.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2018 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkIPoint16_DEFINED
+#define SkIPoint16_DEFINED
+
+#include "SkTypes.h"
+
+/** \struct SkIPoint16
+ SkIPoint16 holds two 16 bit integer coordinates.
+ */
+struct SkIPoint16 {
+    int16_t fX; //!< x-axis value used by SkIPoint16
+
+    int16_t fY; //!< y-axis value used by SkIPoint16
+
+    /** Sets fX to x, fY to y. If SK_DEBUG is defined, asserts
+     if x or y does not fit in 16 bits.
+
+     @param x  integer x-axis value of constructed SkIPoint
+     @param y  integer y-axis value of constructed SkIPoint
+     @return   SkIPoint16 (x, y)
+     */
+    static constexpr SkIPoint16 Make(int x, int y) {
+        return {SkToS16(x), SkToS16(y)};
+    }
+
+    /** Returns x-axis value of SkIPoint16.
+
+     @return  fX
+     */
+    int16_t x() const { return fX; }
+
+    /** Returns y-axis value of SkIPoint.
+
+     @return  fY
+     */
+    int16_t y() const { return fY; }
+
+    /** Sets fX to x and fY to y.
+
+     @param x  new value for fX
+     @param y  new value for fY
+     */
+    void set(int x, int y) {
+        fX = SkToS16(x);
+        fY = SkToS16(y);
+    }
+};
+
+#endif
+