Revert "Support alpha for SurfaceView"

Revert submission 19562144-surfaceview-alpha

Reason for revert: Presubmit breakage b/245651921
Reverted Changes:
I7510a3a6c:Add CTS for applying alpha for SurfaceView
Ibc14b18f1:Support alpha for SurfaceView

Change-Id: I498c98951a53e6bb1c1251dceb9d150311b07cc8
diff --git a/libs/hwui/SkiaCanvas.cpp b/libs/hwui/SkiaCanvas.cpp
index 20c6d68..023d6bf 100644
--- a/libs/hwui/SkiaCanvas.cpp
+++ b/libs/hwui/SkiaCanvas.cpp
@@ -18,7 +18,6 @@
 
 #include "CanvasProperty.h"
 #include "NinePatchUtils.h"
-#include "SkBlendMode.h"
 #include "VectorDrawable.h"
 #include "hwui/Bitmap.h"
 #include "hwui/MinikinUtils.h"
@@ -252,11 +251,10 @@
     return (rec && rec->saveCount == currentSaveCount) ? rec : nullptr;
 }
 
-void SkiaCanvas::punchHole(const SkRRect& rect, float alpha) {
+void SkiaCanvas::punchHole(const SkRRect& rect) {
     SkPaint paint = SkPaint();
-    paint.setColor(SkColors::kBlack);
-    paint.setAlphaf(alpha);
-    paint.setBlendMode(SkBlendMode::kDstOut);
+    paint.setColor(0);
+    paint.setBlendMode(SkBlendMode::kClear);
     mCanvas->drawRRect(rect, paint);
 }
 
diff --git a/libs/hwui/SkiaCanvas.h b/libs/hwui/SkiaCanvas.h
index 51007c5..c6313f6 100644
--- a/libs/hwui/SkiaCanvas.h
+++ b/libs/hwui/SkiaCanvas.h
@@ -65,7 +65,7 @@
         LOG_ALWAYS_FATAL("SkiaCanvas does not support enableZ");
     }
 
-    virtual void punchHole(const SkRRect& rect, float alpha) override;
+    virtual void punchHole(const SkRRect& rect) override;
 
     virtual void setBitmap(const SkBitmap& bitmap) override;
 
diff --git a/libs/hwui/hwui/Canvas.h b/libs/hwui/hwui/Canvas.h
index 82d23b5..7378351 100644
--- a/libs/hwui/hwui/Canvas.h
+++ b/libs/hwui/hwui/Canvas.h
@@ -152,7 +152,7 @@
         LOG_ALWAYS_FATAL("Not supported");
     }
 
-    virtual void punchHole(const SkRRect& rect, float alpha) = 0;
+    virtual void punchHole(const SkRRect& rect) = 0;
 
     // ----------------------------------------------------------------------------
     // Canvas state operations
diff --git a/libs/hwui/jni/android_graphics_Canvas.cpp b/libs/hwui/jni/android_graphics_Canvas.cpp
index 0513447..fb7d5f7 100644
--- a/libs/hwui/jni/android_graphics_Canvas.cpp
+++ b/libs/hwui/jni/android_graphics_Canvas.cpp
@@ -713,10 +713,9 @@
 }
 
 static void punchHole(JNIEnv* env, jobject, jlong canvasPtr, jfloat left, jfloat top, jfloat right,
-        jfloat bottom, jfloat rx, jfloat ry, jfloat alpha) {
+        jfloat bottom, jfloat rx, jfloat ry) {
     auto canvas = reinterpret_cast<Canvas*>(canvasPtr);
-    canvas->punchHole(SkRRect::MakeRectXY(SkRect::MakeLTRB(left, top, right, bottom), rx, ry),
-                      alpha);
+    canvas->punchHole(SkRRect::MakeRectXY(SkRect::MakeLTRB(left, top, right, bottom), rx, ry));
 }
 
 }; // namespace CanvasJNI
@@ -791,7 +790,7 @@
     {"nDrawTextRun","(JLjava/lang/String;IIIIFFZJ)V", (void*) CanvasJNI::drawTextRunString},
     {"nDrawTextOnPath","(J[CIIJFFIJ)V", (void*) CanvasJNI::drawTextOnPathChars},
     {"nDrawTextOnPath","(JLjava/lang/String;JFFIJ)V", (void*) CanvasJNI::drawTextOnPathString},
-    {"nPunchHole", "(JFFFFFFF)V", (void*) CanvasJNI::punchHole}
+    {"nPunchHole", "(JFFFFFF)V", (void*) CanvasJNI::punchHole}
 };
 
 int register_android_graphics_Canvas(JNIEnv* env) {
diff --git a/libs/hwui/pipeline/skia/RenderNodeDrawable.cpp b/libs/hwui/pipeline/skia/RenderNodeDrawable.cpp
index f2282e66..3bf2b2e 100644
--- a/libs/hwui/pipeline/skia/RenderNodeDrawable.cpp
+++ b/libs/hwui/pipeline/skia/RenderNodeDrawable.cpp
@@ -201,7 +201,6 @@
         paint.setAlpha((uint8_t)paint.getAlpha() * mAlpha);
         return true;
     }
-
     void onDrawDrawable(SkDrawable* drawable, const SkMatrix* matrix) override {
         // We unroll the drawable using "this" canvas, so that draw calls contained inside will
         // get their alpha applied. The default SkPaintFilterCanvas::onDrawDrawable does not unroll.
@@ -293,7 +292,7 @@
                 // with the same canvas transformation + clip into the target
                 // canvas then draw the layer on top
                 if (renderNode->hasHolePunches()) {
-                    TransformCanvas transformCanvas(canvas, SkBlendMode::kDstOut);
+                    TransformCanvas transformCanvas(canvas, SkBlendMode::kClear);
                     displayList->draw(&transformCanvas);
                 }
                 canvas->drawImageRect(snapshotImage, SkRect::Make(srcBounds),
diff --git a/libs/hwui/pipeline/skia/SkiaRecordingCanvas.cpp b/libs/hwui/pipeline/skia/SkiaRecordingCanvas.cpp
index 1f87865..5c6117d 100644
--- a/libs/hwui/pipeline/skia/SkiaRecordingCanvas.cpp
+++ b/libs/hwui/pipeline/skia/SkiaRecordingCanvas.cpp
@@ -69,22 +69,20 @@
     mDisplayList->setHasHolePunches(false);
 }
 
-void SkiaRecordingCanvas::punchHole(const SkRRect& rect, float alpha) {
-    // Add the marker annotation to allow HWUI to determine the current
-    // clip/transformation and alpha should be applied
+void SkiaRecordingCanvas::punchHole(const SkRRect& rect) {
+    // Add the marker annotation to allow HWUI to determine where the current
+    // clip/transformation should be applied
     SkVector vector = rect.getSimpleRadii();
-    float data[3];
+    float data[2];
     data[0] = vector.x();
     data[1] = vector.y();
-    data[2] = alpha;
     mRecorder.drawAnnotation(rect.rect(), HOLE_PUNCH_ANNOTATION.c_str(),
-                             SkData::MakeWithCopy(data, sizeof(data)));
+                             SkData::MakeWithCopy(data, 2 * sizeof(float)));
 
     // Clear the current rect within the layer itself
     SkPaint paint = SkPaint();
-    paint.setColor(SkColors::kBlack);
-    paint.setAlphaf(alpha);
-    paint.setBlendMode(SkBlendMode::kDstOut);
+    paint.setColor(0);
+    paint.setBlendMode(SkBlendMode::kClear);
     mRecorder.drawRRect(rect, paint);
 
     mDisplayList->setHasHolePunches(true);
diff --git a/libs/hwui/pipeline/skia/SkiaRecordingCanvas.h b/libs/hwui/pipeline/skia/SkiaRecordingCanvas.h
index 7844e2c..89e3a2c 100644
--- a/libs/hwui/pipeline/skia/SkiaRecordingCanvas.h
+++ b/libs/hwui/pipeline/skia/SkiaRecordingCanvas.h
@@ -50,7 +50,7 @@
         initDisplayList(renderNode, width, height);
     }
 
-    virtual void punchHole(const SkRRect& rect, float alpha) override;
+    virtual void punchHole(const SkRRect& rect) override;
 
     virtual void finishRecording(uirenderer::RenderNode* destination) override;
     std::unique_ptr<SkiaDisplayList> finishRecording();
diff --git a/libs/hwui/pipeline/skia/TransformCanvas.cpp b/libs/hwui/pipeline/skia/TransformCanvas.cpp
index c320df0..33160d0 100644
--- a/libs/hwui/pipeline/skia/TransformCanvas.cpp
+++ b/libs/hwui/pipeline/skia/TransformCanvas.cpp
@@ -29,15 +29,13 @@
 void TransformCanvas::onDrawAnnotation(const SkRect& rect, const char* key, SkData* value) {
     if (HOLE_PUNCH_ANNOTATION == key) {
         auto* rectParams = reinterpret_cast<const float*>(value->data());
-        const float radiusX = rectParams[0];
-        const float radiusY = rectParams[1];
-        const float alpha = rectParams[2];
+        float radiusX = rectParams[0];
+        float radiusY = rectParams[1];
         SkRRect roundRect = SkRRect::MakeRectXY(rect, radiusX, radiusY);
 
         SkPaint paint;
         paint.setColor(SkColors::kBlack);
         paint.setBlendMode(mHolePunchBlendMode);
-        paint.setAlphaf(alpha);
         mWrappedCanvas->drawRRect(roundRect, paint);
     }
 }
diff --git a/libs/hwui/tests/common/scenes/StretchyListViewAnimation.cpp b/libs/hwui/tests/common/scenes/StretchyListViewAnimation.cpp
index 7d3ca96..59230a7 100644
--- a/libs/hwui/tests/common/scenes/StretchyListViewAnimation.cpp
+++ b/libs/hwui/tests/common/scenes/StretchyListViewAnimation.cpp
@@ -138,7 +138,7 @@
         roundRectPaint.setColor(Color::White);
         if (addHolePunch) {
             // Punch a hole but then cover it up, we don't want to actually see it
-            canvas.punchHole(SkRRect::MakeRect(SkRect::MakeWH(itemWidth, itemHeight)), 1.f);
+            canvas.punchHole(SkRRect::MakeRect(SkRect::MakeWH(itemWidth, itemHeight)));
         }
         canvas.drawRoundRect(0, 0, itemWidth, itemHeight, dp(6), dp(6), roundRectPaint);
 
@@ -235,4 +235,4 @@
     StretchEffectBehavior stretchBehavior() override { return StretchEffectBehavior::UniformScale; }
     bool haveHolePunch() override { return true; }
     bool forceLayer() override { return true; }
-};
+};
\ No newline at end of file