"Modularize" SkSG

* relocate all SkSG-related files under modules/sksg/
* fix various tidbits to make non-sksg builds possible
* drop obsolete SampleSGInval.cpp

Change-Id: I54e6c5bb1a09f45030fa8d607b3eb3f7cba78957
Reviewed-on: https://skia-review.googlesource.com/130025
Commit-Queue: Florin Malita <fmalita@chromium.org>
Reviewed-by: Mike Klein <mtklein@google.com>

1 files changed, 48 insertions, 0 deletions

diff --git a/modules/sksg/include/SkSGDraw.h b/modules/sksg/include/SkSGDraw.h
new file mode 100644
index 0000000000..20ead3d5f6
--- /dev/null
+++ b/modules/sksg/include/SkSGDraw.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2017 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkSGDraw_DEFINED
+#define SkSGDraw_DEFINED
+
+#include "SkSGRenderNode.h"
+
+namespace sksg {
+
+class GeometryNode;
+class PaintNode;
+
+/**
+ * Concrete rendering node.
+ *
+ * Wraps and draws a [geometry, paint] tuple.
+ *
+ * Think Skia SkCanvas::drawFoo(foo, paint) calls.
+ */
+class Draw : public RenderNode {
+public:
+    static sk_sp<Draw> Make(sk_sp<GeometryNode> geo, sk_sp<PaintNode> paint) {
+        return (geo && paint) ? sk_sp<Draw>(new Draw(std::move(geo), std::move(paint))) : nullptr;
+    }
+
+protected:
+    Draw(sk_sp<GeometryNode>, sk_sp<PaintNode> paint);
+    ~Draw() override;
+
+    void onRender(SkCanvas*) const override;
+
+    SkRect onRevalidate(InvalidationController*, const SkMatrix&) override;
+
+private:
+    sk_sp<GeometryNode> fGeometry;
+    sk_sp<PaintNode>    fPaint;
+
+    typedef RenderNode INHERITED;
+};
+
+} // namespace sksg
+
+#endif // SkSGDraw_DEFINED