Factor out DumpRecord method from dump_record tool for later use

tools/dump_record.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include <stdio.h>
 
-#include "BenchTimer.h"
-#include "LazyDecodeBitmap.h"
 #include "SkCommandLineFlags.h"
 #include "SkGraphics.h"
-#include "SkOSFile.h"
 #include "SkPicture.h"
-#include "SkRecord.h"
-#include "SkRecordDraw.h"
 #include "SkRecordOpts.h"
 #include "SkRecorder.h"
 #include "SkStream.h"
 
+#include "DumpRecord.h"
+#include "LazyDecodeBitmap.h"
+
 DEFINE_string2(skps, r, "", ".SKPs to dump.");
 DEFINE_string(match, "", "The usual filters on file names to dump.");
 DEFINE_bool2(optimize, O, false, "Run SkRecordOptimize before dumping.");
 DEFINE_int32(tile, 1000000000, "Simulated tile size.");
 DEFINE_bool(timeWithCommand, false, "If true, print time next to command, else in first column.");
 
-class Dumper {
-public:
-    explicit Dumper(SkCanvas* canvas, int count) : fDigits(0), fIndent(0), fDraw(canvas) {
-        while (count > 0) {
-            count /= 10;
-            fDigits++;
-        }
-    }
-
-    unsigned index() const { return fDraw.index(); }
-    void next() { fDraw.next(); }
-
-    template <typename T>
-    void operator()(const T& command) {
-        BenchTimer timer;
-        timer.start();
-            fDraw(command);
-        timer.end();
-
-        this->print(command, timer.fCpu);
-    }
-
-    void operator()(const SkRecords::NoOp&) {
-        // Move on without printing anything.
-    }
-
-    template <typename T>
-    void print(const T& command, double time) {
-        this->printNameAndTime(command, time);
-    }
-
-    void print(const SkRecords::Restore& command, double time) {
-        --fIndent;
-        this->printNameAndTime(command, time);
-    }
-
-    void print(const SkRecords::Save& command, double time) {
-        this->printNameAndTime(command, time);
-        ++fIndent;
-    }
-
-    void print(const SkRecords::SaveLayer& command, double time) {
-        this->printNameAndTime(command, time);
-        ++fIndent;
-    }
-
-private:
-    template <typename T>
-    void printNameAndTime(const T& command, double time) {
-        if (!FLAGS_timeWithCommand) {
-            printf("%6.1f ", time * 1000);
-        }
-        printf("%*d ", fDigits, fDraw.index());
-        for (int i = 0; i < fIndent; i++) {
-            putchar('\t');
-        }
-        if (FLAGS_timeWithCommand) {
-            printf("%6.1f ", time * 1000);
-        }
-        puts(NameOf(command));
-    }
-
-    template <typename T>
-    static const char* NameOf(const T&) {
-    #define CASE(U) case SkRecords::U##_Type: return #U;
-        switch(T::kType) { SK_RECORD_TYPES(CASE); }
-    #undef CASE
-        SkDEBUGFAIL("Unknown T");
-        return "Unknown T";
-    }
-
-    static const char* NameOf(const SkRecords::SaveLayer&) {
-        return "\x1b[31;1mSaveLayer\x1b[0m";  // Bold red.
-    }
-
-    int fDigits;
-    int fIndent;
-    SkRecords::Draw fDraw;
-};
-
-
 static void dump(const char* name, int w, int h, const SkRecord& record) {
     SkBitmap bitmap;
     bitmap.allocN32Pixels(w, h);
     SkCanvas canvas(bitmap);
-    canvas.clipRect(SkRect::MakeWH(SkIntToScalar(FLAGS_tile), SkIntToScalar(FLAGS_tile)));
+    canvas.clipRect(SkRect::MakeWH(SkIntToScalar(FLAGS_tile),
+                                   SkIntToScalar(FLAGS_tile)));
 
     printf("%s %s\n", FLAGS_optimize ? "optimized" : "not-optimized", name);
 
-    for (Dumper dumper(&canvas, record.count()); dumper.index() < record.count(); dumper.next()) {
-        record.visit<void>(dumper.index(), dumper);
-    }
+    DumpRecord(record, &canvas, FLAGS_timeWithCommand);
 }
 
+
 int tool_main(int argc, char** argv);
 int tool_main(int argc, char** argv) {
     SkCommandLineFlags::Parse(argc, argv);
     SkAutoGraphics ag;
 
     for (int i = 0; i < FLAGS_skps.count(); i++) {
         if (SkCommandLineFlags::ShouldSkip(FLAGS_match, FLAGS_skps[i])) {
             continue;
         }
 
@@ skipping 23 matching lines @@
     }
 
     return 0;
 }
 
 #if !defined SK_BUILD_FOR_IOS
 int main(int argc, char * const argv[]) {
     return tool_main(argc, (char**) argv);
 }
 #endif