"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, 0 insertions, 42 deletions

diff --git a/experimental/sksg/effects/SkSGOpacityEffect.cpp b/experimental/sksg/effects/SkSGOpacityEffect.cpp
deleted file mode 100644
index b1ff10d217..0000000000
--- a/experimental/sksg/effects/SkSGOpacityEffect.cpp
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * 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 "SkSGOpacityEffect.h"
-
-#include "SkCanvas.h"
-
-#include <math.h>
-
-namespace sksg {
-
-OpacityEffect::OpacityEffect(sk_sp<RenderNode> child, float opacity)
-    : INHERITED(std::move(child))
-    , fOpacity(opacity) {}
-
-void OpacityEffect::onRender(SkCanvas* canvas) const {
-    // opacity <= 0 disables rendering
-    if (fOpacity <= 0)
-        return;
-
-    // TODO: we could avoid savelayer if there is no more than one drawing primitive
-    //       in the sub-DAG.
-    SkAutoCanvasRestore acr(canvas, false);
-    if (fOpacity < 1) {
-        canvas->saveLayerAlpha(&this->bounds(), roundf(fOpacity * 255));
-    }
-
-    this->INHERITED::onRender(canvas);
-}
-
-SkRect OpacityEffect::onRevalidate(InvalidationController* ic, const SkMatrix& ctm) {
-    SkASSERT(this->hasInval());
-
-    // opacity <= 0 disables rendering AND revalidation for the sub-DAG
-    return fOpacity > 0 ? this->INHERITED::onRevalidate(ic, ctm) : SkRect::MakeEmpty();
-}
-
-} // namespace sksg