Part 8 of cc/ directory shuffles: resources

cc/layer_quad.cc

-// Copyright 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "cc/layer_quad.h"
-
-#include "base/logging.h"
-#include "ui/gfx/quad_f.h"
-
-namespace cc {
-
-LayerQuad::Edge::Edge(gfx::PointF p, gfx::PointF q) {
-  DCHECK(p != q);
-
-  gfx::Vector2dF tangent(p.y() - q.y(), q.x() - p.x());
-  float cross2 = p.x() * q.y() - q.x() * p.y();
-
-  set(tangent.x(), tangent.y(), cross2);
-  scale(1.0f / tangent.Length());
-}
-
-LayerQuad::LayerQuad(const gfx::QuadF& quad) {
-  // Create edges.
-  left_ = Edge(quad.p4(), quad.p1());
-  right_ = Edge(quad.p2(), quad.p3());
-  top_ = Edge(quad.p1(), quad.p2());
-  bottom_ = Edge(quad.p3(), quad.p4());
-
-  float sign = quad.IsCounterClockwise() ? -1 : 1;
-  left_.scale(sign);
-  right_.scale(sign);
-  top_.scale(sign);
-  bottom_.scale(sign);
-}
-
-LayerQuad::LayerQuad(const Edge& left,
-                     const Edge& top,
-                     const Edge& right,
-                     const Edge& bottom)
-    : left_(left),
-      top_(top),
-      right_(right),
-      bottom_(bottom) {}
-
-gfx::QuadF LayerQuad::ToQuadF() const {
-  return gfx::QuadF(left_.Intersect(top_),
-                    top_.Intersect(right_),
-                    right_.Intersect(bottom_),
-                    bottom_.Intersect(left_));
-}
-
-void LayerQuad::ToFloatArray(float flattened[12]) const {
-  flattened[0] = left_.x();
-  flattened[1] = left_.y();
-  flattened[2] = left_.z();
-  flattened[3] = top_.x();
-  flattened[4] = top_.y();
-  flattened[5] = top_.z();
-  flattened[6] = right_.x();
-  flattened[7] = right_.y();
-  flattened[8] = right_.z();
-  flattened[9] = bottom_.x();
-  flattened[10] = bottom_.y();
-  flattened[11] = bottom_.z();
-}
-
-}  // namespace cc