Ensure blob typeface information survives SkGPipe serialization.

src/pipe/SkGPipeRead.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 "SkBitmapHeap.h"
@@ skipping 176 matching lines @@
         return fSharedHeap;
     }
 
     void addTypeface() {
         size_t size = fReader->read32();
         const void* data = fReader->skip(SkAlign4(size));
         SkMemoryStream stream(data, size, false);
         *fTypefaces.append() = SkTypeface::Deserialize(&stream);
     }
 
-    void setTypeface(SkPaint* paint, unsigned id) {
-        paint->setTypeface(id ? fTypefaces[id - 1] : NULL);
+    SkTypeface* getTypeface(unsigned id) const {
+        return id ? fTypefaces[id - 1] : NULL;
     }
 
 private:
     void updateReader() {
         if (NULL == fReader) {
             return;
         }
         bool crossProcess = SkToBool(fFlags & SkGPipeWriter::kCrossProcess_Flag);
         fReader->setFlags(SkSetClearMask(fReader->getFlags(), crossProcess,
                                          SkReadBuffer::kCrossProcess_Flag));
@@ skipping 460 matching lines @@
 static void drawPicture_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
                            SkGPipeState* state) {
     UNIMPLEMENTED
 }
 
 static void drawTextBlob_rp(SkCanvas* canvas, SkReader32* reader, uint32_t op32,
                             SkGPipeState* state) {
     SkScalar x = reader->readScalar();
     SkScalar y = reader->readScalar();
 
+    int typefaceCount = reader->readU32();
+    SkAutoSTMalloc<16, SkTypeface*> typefaceArray(typefaceCount);
+    if (state->getFlags() & SkGPipeWriter::kCrossProcess_Flag) {
+        for (int i = 0; i < typefaceCount; ++i) {
+            typefaceArray[i] = state->getTypeface(reader->readU32());
+        }
+    } else {
+        reader->read(typefaceArray.get(), typefaceCount * sizeof(SkTypeface*));
+    }
+
     size_t blobSize = reader->readU32();
     const void* data = reader->skip(SkAlign4(blobSize));
 
     if (state->shouldDraw()) {
         SkReadBuffer blobBuffer(data, blobSize);
+        blobBuffer.setTypefaceArray(typefaceArray.get(), typefaceCount);
         SkAutoTUnref<const SkTextBlob> blob(SkTextBlob::CreateFromBuffer(blobBuffer));
         SkASSERT(blob.get());
 
         canvas->drawTextBlob(blob, x, y, state->paint());
     }
 }
 ///////////////////////////////////////////////////////////////////////////////
 
 static void paintOp_rp(SkCanvas*, SkReader32* reader, uint32_t op32,
                        SkGPipeState* state) {
@@ skipping 30 matching lines @@
             case kFlatIndex_PaintOp: {
                 PaintFlats pf = (PaintFlats)PaintOp_unpackFlags(p32);
                 unsigned index = data;
                 set_paintflat(p, state->getFlat(index), pf);
                 break;
             }
 
             case kTypeface_PaintOp:
                 SkASSERT(SkToBool(state->getFlags() &
                                   SkGPipeWriter::kCrossProcess_Flag));
-                state->setTypeface(p, data); break;
+                p->setTypeface(state->getTypeface(data));
+                break;
             default: SkDEBUGFAIL("bad paintop"); return;
         }
         SkASSERT(reader->offset() <= stop);
     } while (reader->offset() < stop);
 }
 
 static void typeface_rp(SkCanvas*, SkReader32* reader, uint32_t,
                         SkGPipeState* state) {
     SkASSERT(!SkToBool(state->getFlags() & SkGPipeWriter::kCrossProcess_Flag));
     SkPaint* p = state->editPaint();
@@ skipping 200 matching lines @@
                 status = kReadAtom_Status;
                 break;
             }
     }
 
     if (bytesRead) {
         *bytesRead = reader.offset();
     }
     return status;
 }