[sksg] Animator, Scene
Relocate some reusable logic from Skottie
TBR=
Change-Id: I8764e666c9f1127ed895ee1d16cd66d052469ac5
Reviewed-on: https://skia-review.googlesource.com/98160
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Florin Malita <fmalita@chromium.org>
diff --git a/experimental/sksg/SkSGScene.cpp b/experimental/sksg/SkSGScene.cpp
new file mode 100644
index 0000000..85a1b43
--- /dev/null
+++ b/experimental/sksg/SkSGScene.cpp
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2018 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "SkSGScene.h"
+
+#include "SkCanvas.h"
+#include "SkMatrix.h"
+#include "SkPaint.h"
+#include "SkSGInvalidationController.h"
+#include "SkSGRenderNode.h"
+
+namespace sksg {
+
+Animator::Animator() = default;
+Animator::~Animator() = default;
+
+void Animator::tick(float t) {
+ this->onTick(t);
+}
+
+std::unique_ptr<Scene> Scene::Make(sk_sp<RenderNode> root, AnimatorList&& anims) {
+ return root ? std::unique_ptr<Scene>(new Scene(std::move(root), std::move(anims))) : nullptr;
+}
+
+Scene::Scene(sk_sp<RenderNode> root, AnimatorList&& animators)
+ : fRoot(std::move(root))
+ , fAnimators(std::move(animators)) {}
+
+Scene::~Scene() = default;
+
+void Scene::render(SkCanvas* canvas) const {
+ InvalidationController ic;
+ fRoot->revalidate(&ic, SkMatrix::I());
+ fRoot->render(canvas);
+
+ if (fShowInval) {
+ SkPaint fill, stroke;
+ fill.setAntiAlias(true);
+ fill.setColor(0x40ff0000);
+ stroke.setAntiAlias(true);
+ stroke.setColor(0xffff0000);
+ stroke.setStyle(SkPaint::kStroke_Style);
+
+ for (const auto& r : ic) {
+ canvas->drawRect(r, fill);
+ canvas->drawRect(r, stroke);
+ }
+ }
+}
+
+void Scene::animate(float t) {
+ for (const auto& anim : fAnimators) {
+ anim->tick(t);
+ }
+}
+
+} // namespace sksg