Add option to skip rects to drawImageLattice()

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 "SkImage_Base.h"
 #include "SkPatchUtils.h"
@@ skipping 520 matching lines @@
     this->addPaintPtr(paint);
     this->addImage(img);
     this->addIRect(center);
     this->addRect(dst);
     this->validate(initialOffset, size);
 }
 
 void SkPictureRecord::onDrawImageLattice(const SkImage* image, const Lattice& lattice,
                                          const SkRect& dst, const SkPaint* paint) {
     // xCount + xDivs + yCount+ yDivs
-    size_t latticeSize = (1 + lattice.fXCount + 1 + lattice.fYCount) * kUInt32Size;
+    int flagCount = (nullptr == lattice.fFlags) ? 0 : (lattice.fXCount + 1) * (lattice.fYCount + 1);
+    size_t latticeSize = (1 + lattice.fXCount + 1 + lattice.fYCount + 1) * kUInt32Size +
+                         SkAlign4(flagCount * sizeof(SkCanvas::Lattice::Flags));
 
     // op + paint index + image index + lattice + dst rect
     size_t size = 3 * kUInt32Size + latticeSize + sizeof(dst);
     size_t initialOffset = this->addDraw(DRAW_IMAGE_LATTICE, &size);
     this->addPaintPtr(paint);
     this->addImage(image);
     this->addInt(lattice.fXCount);
     fWriter.writePad(lattice.fXDivs, lattice.fXCount * kUInt32Size);
     this->addInt(lattice.fYCount);
     fWriter.writePad(lattice.fYDivs, lattice.fYCount * kUInt32Size);
+    this->addInt(flagCount);
+    fWriter.writePad(lattice.fFlags, flagCount * sizeof(SkCanvas::Lattice::Flags));
     this->addRect(dst);
     this->validate(initialOffset, size);
 }
 
 void SkPictureRecord::onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y,
                                  const SkPaint& paint) {
     // op + paint index + length + 'length' worth of chars + x + y
     size_t size = 3 * kUInt32Size + SkAlign4(byteLength) + 2 * sizeof(SkScalar);
 
     DrawType op = DRAW_TEXT;
@@ skipping 419 matching lines @@
     addInt(SkToInt(byteLength));
     fWriter.writePad(text, byteLength);
 }
 
 void SkPictureRecord::addTextBlob(const SkTextBlob* blob) {
     // follow the convention of recording a 1-based index
     this->addInt(find_or_append_uniqueID(fTextBlobRefs, blob) + 1);
 }
 
 ///////////////////////////////////////////////////////////////////////////////