1 files changed, 61 insertions, 0 deletions
diff --git a/gfx/2d/Triangle.h b/gfx/2d/Triangle.h
new file mode 100644
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+++ b/gfx/2d/Triangle.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef MOZILLA_GFX_TRIANGLE_H
+#define MOZILLA_GFX_TRIANGLE_H
+
+#include <algorithm>
+#include <utility>
+
+#include "Point.h"
+#include "Rect.h"
+
+namespace mozilla {
+namespace gfx {
+
+/**
+ * A simple triangle data structure.
+ */
+template <class Units, class F = Float>
+struct TriangleTyped {
+  PointTyped<Units, F> p1, p2, p3;
+
+  TriangleTyped() : p1(), p2(), p3() {}
+
+  TriangleTyped(PointTyped<Units, F> aP1, PointTyped<Units, F> aP2,
+                PointTyped<Units, F> aP3)
+      : p1(aP1), p2(aP2), p3(aP3) {}
+
+  RectTyped<Units, F> BoundingBox() const {
+    F minX = std::min(std::min(p1.x, p2.x), p3.x);
+    F maxX = std::max(std::max(p1.x, p2.x), p3.x);
+
+    F minY = std::min(std::min(p1.y, p2.y), p3.y);
+    F maxY = std::max(std::max(p1.y, p2.y), p3.y);
+
+    return RectTyped<Units, F>(minX, minY, maxX - minX, maxY - minY);
+  }
+};
+
+typedef TriangleTyped<UnknownUnits, Float> Triangle;
+
+template <class Units, class F = Float>
+struct TexturedTriangleTyped : public TriangleTyped<Units, F> {
+  explicit TexturedTriangleTyped(const TriangleTyped<Units, F>& aTriangle)
+      : TriangleTyped<Units, F>(aTriangle) {}
+
+  explicit TexturedTriangleTyped(TriangleTyped<Units, F>&& aTriangle)
+      : TriangleTyped<Units, F>(std::move(aTriangle)) {}
+
+  TriangleTyped<Units, F> textureCoords;
+};
+
+typedef TexturedTriangleTyped<UnknownUnits, Float> TexturedTriangle;
+
+}  // namespace gfx
+}  // namespace mozilla
+
+#endif /* MOZILLA_GFX_TRIANGLE_H */