Cull pushCull and popCull from Skia.

src/core/SkPictureRecord.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkPictureRecord.h"
 #include "SkDevice.h"
 #include "SkPatchUtils.h"
@@ skipping 829 matching lines @@
     this->validate(initialOffset, size);
 }
 
 void SkPictureRecord::endCommentGroup() {
     // op/size
     size_t size = 1 * kUInt32Size;
     size_t initialOffset = this->addDraw(END_COMMENT_GROUP, &size);
     this->validate(initialOffset, size);
 }
 
-// [op/size] [rect] [skip offset]
-static const uint32_t kPushCullOpSize = 2 * kUInt32Size + sizeof(SkRect);
-void SkPictureRecord::onPushCull(const SkRect& cullRect) {
-    size_t size = kPushCullOpSize;
-    size_t initialOffset = this->addDraw(PUSH_CULL, &size);
-    // PUSH_CULL's size should stay constant (used to rewind).
-    SkASSERT(size == kPushCullOpSize);
-
-    this->addRect(cullRect);
-    fCullOffsetStack.push(SkToU32(fWriter.bytesWritten()));
-    this->addInt(0);
-    this->validate(initialOffset, size);
-}
-
-void SkPictureRecord::onPopCull() {
-    SkASSERT(!fCullOffsetStack.isEmpty());
-
-    uint32_t cullSkipOffset = fCullOffsetStack.top();
-    fCullOffsetStack.pop();
-
-    // op only
-    size_t size = kUInt32Size;
-    size_t initialOffset = this->addDraw(POP_CULL, &size);
-
-    // update the cull skip offset to point past this op.
-    fWriter.overwriteTAt<uint32_t>(cullSkipOffset, SkToU32(fWriter.bytesWritten()));
-
-    this->validate(initialOffset, size);
-}
-
 ///////////////////////////////////////////////////////////////////////////////
 
 SkSurface* SkPictureRecord::onNewSurface(const SkImageInfo& info, const SkSurfaceProps&) {
     return NULL;
 }
 
 // If we already have a stored, can we reuse it instead of also storing b?
 static bool equivalent(const SkBitmap& a, const SkBitmap& b) {
     if (a.info() != b.info() || a.pixelRefOrigin() != b.pixelRefOrigin()) {
         // Requiring a.info() == b.info() may be overkill in some cases (alphatype mismatch),
@@ skipping 153 matching lines @@
 void SkPictureRecord::addTextBlob(const SkTextBlob *blob) {
     int index = fTextBlobRefs.count();
     *fTextBlobRefs.append() = blob;
     blob->ref();
     // follow the convention of recording a 1-based index
     this->addInt(index + 1);
 }
 
 ///////////////////////////////////////////////////////////////////////////////