Simplify ClipArea to prefer Rect args

Change-Id: I8af83d01dc5dd8009a0cd235dd8b59dab61d8560
diff --git a/libs/hwui/CanvasState.cpp b/libs/hwui/CanvasState.cpp
index 6a6cc42..cf76e6b 100644
--- a/libs/hwui/CanvasState.cpp
+++ b/libs/hwui/CanvasState.cpp
@@ -192,7 +192,7 @@
 ///////////////////////////////////////////////////////////////////////////////
 
 bool CanvasState::clipRect(float left, float top, float right, float bottom, SkRegion::Op op) {
-    mSnapshot->clip(left, top, right, bottom, op);
+    mSnapshot->clip(Rect(left, top, right, bottom), op);
     mDirtyClip = true;
     return !mSnapshot->clipIsEmpty();
 }
diff --git a/libs/hwui/ClipArea.cpp b/libs/hwui/ClipArea.cpp
index fd6f0b5..5f166ca 100644
--- a/libs/hwui/ClipArea.cpp
+++ b/libs/hwui/ClipArea.cpp
@@ -201,12 +201,6 @@
     mClipRegion.setEmpty();
 }
 
-void ClipArea::clipRectWithTransform(float left, float top, float right,
-        float bottom, const mat4* transform, SkRegion::Op op) {
-    Rect r(left, top, right, bottom);
-    clipRectWithTransform(r, transform, op);
-}
-
 void ClipArea::clipRectWithTransform(const Rect& r, const mat4* transform,
         SkRegion::Op op) {
     switch (mMode) {
@@ -274,13 +268,6 @@
     rectangleListModeClipRectWithTransform(r, transform, op);
 }
 
-void ClipArea::rectangleModeClipRectWithTransform(float left, float top,
-        float right, float bottom, const mat4* transform, SkRegion::Op op) {
-    Rect r(left, top, right, bottom);
-    rectangleModeClipRectWithTransform(r, transform, op);
-    mClipRect = mRectangleList.calculateBounds();
-}
-
 /*
  * RectangleList mode implementation
  */
@@ -303,12 +290,6 @@
     }
 }
 
-void ClipArea::rectangleListModeClipRectWithTransform(float left, float top,
-        float right, float bottom, const mat4* transform, SkRegion::Op op) {
-    Rect r(left, top, right, bottom);
-    rectangleListModeClipRectWithTransform(r, transform, op);
-}
-
 /*
  * Region mode implementation
  */
@@ -336,11 +317,6 @@
     onClipRegionUpdated();
 }
 
-void ClipArea::regionModeClipRectWithTransform(float left, float top,
-        float right, float bottom, const mat4* transform, SkRegion::Op op) {
-    regionModeClipRectWithTransform(Rect(left, top, right, bottom), transform, op);
-}
-
 void ClipArea::onClipRegionUpdated() {
     if (!mClipRegion.isEmpty()) {
         mClipRect.set(mClipRegion.getBounds());
diff --git a/libs/hwui/ClipArea.h b/libs/hwui/ClipArea.h
index f88fd92..268301c 100644
--- a/libs/hwui/ClipArea.h
+++ b/libs/hwui/ClipArea.h
@@ -98,8 +98,6 @@
 
     void setEmpty();
     void setClip(float left, float top, float right, float bottom);
-    void clipRectWithTransform(float left, float top, float right, float bottom,
-            const mat4* transform, SkRegion::Op op);
     void clipRectWithTransform(const Rect& r, const mat4* transform,
             SkRegion::Op op);
     void clipRegion(const SkRegion& region, SkRegion::Op op);
@@ -133,12 +131,8 @@
 private:
     void enterRectangleMode();
     void rectangleModeClipRectWithTransform(const Rect& r, const mat4* transform, SkRegion::Op op);
-    void rectangleModeClipRectWithTransform(float left, float top, float right,
-            float bottom, const mat4* transform, SkRegion::Op op);
 
     void enterRectangleListMode();
-    void rectangleListModeClipRectWithTransform(float left, float top,
-            float right, float bottom, const mat4* transform, SkRegion::Op op);
     void rectangleListModeClipRectWithTransform(const Rect& r,
             const mat4* transform, SkRegion::Op op);
 
@@ -147,8 +141,6 @@
     void enterRegionMode();
     void regionModeClipRectWithTransform(const Rect& r, const mat4* transform,
             SkRegion::Op op);
-    void regionModeClipRectWithTransform(float left, float top, float right,
-            float bottom, const mat4* transform, SkRegion::Op op);
 
     void ensureClipRegion();
     void onClipRegionUpdated();
diff --git a/libs/hwui/Snapshot.cpp b/libs/hwui/Snapshot.cpp
index 2f535bb..c6d8977 100644
--- a/libs/hwui/Snapshot.cpp
+++ b/libs/hwui/Snapshot.cpp
@@ -88,9 +88,9 @@
     mClipArea->clipRegion(region, op);
 }
 
-void Snapshot::clip(float left, float top, float right, float bottom, SkRegion::Op op) {
+void Snapshot::clip(const Rect& localClip, SkRegion::Op op) {
     flags |= Snapshot::kFlagClipSet;
-    mClipArea->clipRectWithTransform(left, top, right, bottom, transform, op);
+    mClipArea->clipRectWithTransform(localClip, transform, op);
 }
 
 void Snapshot::clipPath(const SkPath& path, SkRegion::Op op) {
diff --git a/libs/hwui/Snapshot.h b/libs/hwui/Snapshot.h
index 4789b33..194aa57 100644
--- a/libs/hwui/Snapshot.h
+++ b/libs/hwui/Snapshot.h
@@ -124,7 +124,7 @@
      * the specified operation. The specified rectangle is transformed
      * by this snapshot's trasnformation.
      */
-    void clip(float left, float top, float right, float bottom, SkRegion::Op op);
+    void clip(const Rect& localClip, SkRegion::Op op);
 
     /**
      * Modifies the current clip with the new clip rectangle and
diff --git a/libs/hwui/tests/common/TestUtils.h b/libs/hwui/tests/common/TestUtils.h
index d37fad4..ac14fc8 100644
--- a/libs/hwui/tests/common/TestUtils.h
+++ b/libs/hwui/tests/common/TestUtils.h
@@ -98,7 +98,7 @@
 
     static std::unique_ptr<Snapshot> makeSnapshot(const Matrix4& transform, const Rect& clip) {
         std::unique_ptr<Snapshot> snapshot(new Snapshot());
-        snapshot->clip(clip.left, clip.top, clip.right, clip.bottom, SkRegion::kReplace_Op);
+        snapshot->clip(clip, SkRegion::kReplace_Op); // store clip first, so it isn't transformed
         *(snapshot->transform) = transform;
         return snapshot;
     }