Create proxy between Skia's SkCanvas and the framework Canvas.

This enables Picture.java to be replayed into HWUI in addition
to extending the Skia testing suite to HWUI.

Bug: 19011232
Change-Id: Id27ac03eec817b0784763e62ab8413a07b3b8cb2

1 files changed, 104 insertions, 0 deletions

diff --git a/libs/hwui/SkiaCanvasProxy.h b/libs/hwui/SkiaCanvasProxy.h
new file mode 100644
index 0000000..4322fcf
--- /dev/null
+++ b/libs/hwui/SkiaCanvasProxy.h
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SkiaCanvasProxy_DEFINED
+#define SkiaCanvasProxy_DEFINED
+
+#include <cutils/compiler.h>
+#include <SkCanvas.h>
+
+#include "Canvas.h"
+
+namespace android {
+namespace uirenderer {
+
+/**
+ * This class serves as a proxy between Skia's SkCanvas and Android Framework's
+ * Canvas.  The class does not maintain any state and will pass through any request
+ * directly to the Canvas provided in the constructor.
+ *
+ * Upon construction it is expected that the provided Canvas has already been
+ * prepared for recording and will continue to be in the recording state while
+ * this proxy class is being used.
+ */
+class ANDROID_API SkiaCanvasProxy : public SkCanvas {
+public:
+    SkiaCanvasProxy(Canvas* canvas);
+    virtual ~SkiaCanvasProxy() {}
+
+protected:
+
+    virtual SkSurface* onNewSurface(const SkImageInfo&, const SkSurfaceProps&) override;
+
+    virtual void willSave() override;
+    virtual SaveLayerStrategy willSaveLayer(const SkRect*, const SkPaint*, SaveFlags) override;
+    virtual void willRestore() override;
+
+    virtual void didConcat(const SkMatrix&) override;
+    virtual void didSetMatrix(const SkMatrix&) override;
+
+    virtual void onDrawPaint(const SkPaint& paint) override;
+    virtual void onDrawPoints(PointMode, size_t count, const SkPoint pts[],
+                              const SkPaint&) override;
+    virtual void onDrawOval(const SkRect&, const SkPaint&) override;
+    virtual void onDrawRect(const SkRect&, const SkPaint&) override;
+    virtual void onDrawRRect(const SkRRect&, const SkPaint&) override;
+    virtual void onDrawPath(const SkPath& path, const SkPaint&) override;
+    virtual void onDrawBitmap(const SkBitmap&, SkScalar left, SkScalar top,
+                              const SkPaint*) override;
+    virtual void onDrawBitmapRect(const SkBitmap&, const SkRect* src, const SkRect& dst,
+                                  const SkPaint* paint, DrawBitmapRectFlags flags) override;
+    virtual void onDrawBitmapNine(const SkBitmap& bitmap, const SkIRect& center,
+                                  const SkRect& dst, const SkPaint*) override;
+    virtual void onDrawSprite(const SkBitmap&, int left, int top,
+                              const SkPaint*) override;
+    virtual void onDrawVertices(VertexMode, int vertexCount, const SkPoint vertices[],
+                                const SkPoint texs[], const SkColor colors[], SkXfermode*,
+                                const uint16_t indices[], int indexCount,
+                                const SkPaint&) override;
+
+    virtual void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override;
+
+    virtual void onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y,
+                            const SkPaint&) override;
+    virtual void onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[],
+                               const SkPaint&) override;
+    virtual void onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[],
+                                SkScalar constY, const SkPaint&) override;
+    virtual void onDrawTextOnPath(const void* text, size_t byteLength, const SkPath& path,
+                                  const SkMatrix* matrix, const SkPaint&) override;
+    virtual void onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y,
+                                const SkPaint& paint) override;
+
+    virtual void onDrawPatch(const SkPoint cubics[12], const SkColor colors[4],
+                             const SkPoint texCoords[4], SkXfermode* xmode,
+                             const SkPaint& paint) override;
+
+    virtual void onClipRect(const SkRect&, SkRegion::Op, ClipEdgeStyle) override;
+    virtual void onClipRRect(const SkRRect&, SkRegion::Op, ClipEdgeStyle) override;
+    virtual void onClipPath(const SkPath&, SkRegion::Op, ClipEdgeStyle) override;
+    virtual void onClipRegion(const SkRegion&, SkRegion::Op) override;
+
+private:
+    Canvas* mCanvas;
+
+    typedef SkCanvas INHERITED;
+};
+
+}; // namespace uirenderer
+}; // namespace android
+
+#endif // SkiaCanvasProxy_DEFINED