import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

gfx/2d/DrawTarget.cpp

@@ -0,0 +1,56 @@
+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * 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/. */
+
+#include "2D.h"
+#include "Logging.h"
+#include "PathHelpers.h"
+
+#include "DrawTargetCapture.h"
+
+namespace mozilla {
+namespace gfx {
+
+already_AddRefed<DrawTargetCapture>
+DrawTarget::CreateCaptureDT(const IntSize& aSize)
+{
+  RefPtr<DrawTargetCaptureImpl> dt = new DrawTargetCaptureImpl();
+
+  if (!dt->Init(aSize, this)) {
+    gfxWarning() << "Failed to initialize Capture DrawTarget!";
+    return nullptr;
+  }
+
+  return dt.forget();
+}
+
+void
+DrawTarget::DrawCapturedDT(DrawTargetCapture *aCaptureDT,
+                           const Matrix& aTransform)
+{
+  if (aTransform.HasNonIntegerTranslation()) {
+    gfxWarning() << "Non integer translations are not supported for DrawCaptureDT at this time!";
+    return;
+  }
+  static_cast<DrawTargetCaptureImpl*>(aCaptureDT)->ReplayToDrawTarget(this, aTransform);
+}
+
+void
+DrawTarget::PushDeviceSpaceClipRects(const IntRect* aRects, uint32_t aCount)
+{
+  Matrix oldTransform = GetTransform();
+  SetTransform(Matrix());
+
+  RefPtr<PathBuilder> pathBuilder = CreatePathBuilder();
+  for (uint32_t i = 0; i < aCount; i++) {
+    AppendRectToPath(pathBuilder, Rect(aRects[i]));
+  }
+  RefPtr<Path> path = pathBuilder->Finish();
+  PushClip(path);
+
+  SetTransform(oldTransform);
+}
+
+} // namespace gfx
+} // namespace mozilla