| // Copyright 2013 The Flutter 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 "flutter/display_list/dl_canvas.h" |
| |
| #include "third_party/skia/include/core/SkPoint3.h" |
| #include "third_party/skia/include/utils/SkShadowUtils.h" |
| |
| namespace flutter { |
| |
| DlRect DlCanvas::ComputeShadowBounds(const DlPath& path, |
| float elevation, |
| DlScalar dpr, |
| const DlMatrix& ctm) { |
| SkRect shadow_bounds(path.GetSkBounds()); |
| SkShadowUtils::GetLocalBounds( |
| ToSkMatrix(ctm), path.GetSkPath(), SkPoint3::Make(0, 0, dpr * elevation), |
| SkPoint3::Make(0, -1, 1), kShadowLightRadius / kShadowLightHeight, |
| SkShadowFlags::kDirectionalLight_ShadowFlag, &shadow_bounds); |
| return ToDlRect(shadow_bounds); |
| } |
| |
| } // namespace flutter |
