add drawPicture variant that takes a matrix and paint

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 "SkTSearch.h"
 #include "SkPixelRef.h"
@@ skipping 1369 matching lines @@
     size_t size = 3 * kUInt32Size + SkAlign4(byteLength) + kUInt32Size + m.writeToMemory(NULL);
     size_t initialOffset = this->addDraw(DRAW_TEXT_ON_PATH, &size);
     SkASSERT(initialOffset+getPaintOffset(DRAW_TEXT_ON_PATH, size) == fWriter.bytesWritten());
     this->addPaint(paint);
     this->addText(text, byteLength);
     this->addPath(path);
     this->addMatrix(m);
     this->validate(initialOffset, size);
 }
 
-void SkPictureRecord::onDrawPicture(const SkPicture* picture) {
+void SkPictureRecord::onDrawPicture(const SkPicture* picture, const SkMatrix* matrix,
+                                    const SkPaint* paint) {
 
 #ifdef SK_COLLAPSE_MATRIX_CLIP_STATE
     fMCMgr.call(SkMatrixClipStateMgr::kOther_CallType);
 #endif
 
     // op + picture index
     size_t size = 2 * kUInt32Size;
-    size_t initialOffset = this->addDraw(DRAW_PICTURE, &size);
-    this->addPicture(picture);
+    size_t initialOffset;
+
+    if (NULL == matrix && NULL == paint) {
+        initialOffset = this->addDraw(DRAW_PICTURE, &size);
+        this->addPicture(picture);
+    } else {
+        const SkMatrix& m = matrix ? *matrix : SkMatrix::I();
+        size += m.writeToMemory(NULL) + kUInt32Size;    // matrix + paint
+        initialOffset = this->addDraw(DRAW_PICTURE_MATRIX_PAINT, &size);
+        this->addPicture(picture);
+        this->addMatrix(m);
+        this->addPaintPtr(paint);
+    }
     this->validate(initialOffset, size);
 }
 
 void SkPictureRecord::drawVertices(VertexMode vmode, int vertexCount,
                           const SkPoint vertices[], const SkPoint texs[],
                           const SkColor colors[], SkXfermode* xfer,
                           const uint16_t indices[], int indexCount,
                           const SkPaint& paint) {
 
 #ifdef SK_COLLAPSE_MATRIX_CLIP_STATE
@@ skipping 417 matching lines @@
 void SkPictureRecord::validateRegions() const {
     int count = fRegions.count();
     SkASSERT((unsigned) count < 0x1000);
     for (int index = 0; index < count; index++) {
         const SkFlatData* region = fRegions[index];
         SkASSERT(region);
 //        region->validate();
     }
 }
 #endif