Simplify flattening to just write enough to call the factory

src/core/SkBitmapProcShader.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 "SkColorPriv.h"
 #include "SkReadBuffer.h"
 #include "SkWriteBuffer.h"
@@ skipping 21 matching lines @@
 }
 
 SkBitmapProcShader::SkBitmapProcShader(const SkBitmap& src, TileMode tmx, TileMode tmy,
                                        const SkMatrix* localMatrix)
         : INHERITED(localMatrix) {
     fRawBitmap = src;
     fTileModeX = (uint8_t)tmx;
     fTileModeY = (uint8_t)tmy;
 }
 
-SkBitmapProcShader::SkBitmapProcShader(SkReadBuffer& buffer)
-        : INHERITED(buffer) {
+#ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING
+SkBitmapProcShader::SkBitmapProcShader(SkReadBuffer& buffer) : INHERITED(buffer) {
     buffer.readBitmap(&fRawBitmap);
     fRawBitmap.setImmutable();
     fTileModeX = buffer.readUInt();
     fTileModeY = buffer.readUInt();
 }
+#endif
 
 SkShader::BitmapType SkBitmapProcShader::asABitmap(SkBitmap* texture,
                                                    SkMatrix* texM,
                                                    TileMode xy[]) const {
     if (texture) {
         *texture = fRawBitmap;
     }
     if (texM) {
         texM->reset();
     }
     if (xy) {
         xy[0] = (TileMode)fTileModeX;
         xy[1] = (TileMode)fTileModeY;
     }
     return kDefault_BitmapType;
 }
 
+SkFlattenable* SkBitmapProcShader::CreateProc(SkReadBuffer& buffer) {
+    SkMatrix lm;
+    buffer.readMatrix(&lm);
+    SkBitmap bm;
+    if (!buffer.readBitmap(&bm)) {
+        return NULL;
+    }
+    bm.setImmutable();
+    TileMode mx = (TileMode)buffer.readUInt();
+    TileMode my = (TileMode)buffer.readUInt();
+    return SkShader::CreateBitmapShader(bm, mx, my, &lm);
+}
+
 void SkBitmapProcShader::flatten(SkWriteBuffer& buffer) const {
-    this->INHERITED::flatten(buffer);
-
+    buffer.writeMatrix(this->getLocalMatrix());
     buffer.writeBitmap(fRawBitmap);
     buffer.writeUInt(fTileModeX);
     buffer.writeUInt(fTileModeY);
 }
 
 static bool only_scale_and_translate(const SkMatrix& matrix) {
     unsigned mask = SkMatrix::kTranslate_Mask | SkMatrix::kScale_Mask;
     return (matrix.getType() & ~mask) == 0;
 }
 
@@ skipping 392 matching lines @@
 #else 
 
 bool SkBitmapProcShader::asNewEffect(GrContext* context, const SkPaint& paint,
                                      const SkMatrix* localMatrix, GrColor* paintColor,
                                      GrEffect** effect) const {
     SkDEBUGFAIL("Should not call in GPU-less build");
     return false;
 }
 
 #endif