Factor out DumpRecord method from dump_record tool for later use

R=mtklein@google.com

Author: halcanary@google.com

Review URL: https://codereview.chromium.org/282233003

git-svn-id: http://skia.googlecode.com/svn/trunk@14751 2bbb7eff-a529-9590-31e7-b0007b416f81

3 files changed, 144 insertions, 90 deletions

diff --git a/tools/DumpRecord.cpp b/tools/DumpRecord.cpp
new file mode 100644
index 0000000000..2376fb9cf0
--- /dev/null
+++ b/tools/DumpRecord.cpp
@@ -0,0 +1,113 @@
+/*
+ * 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 "SkRecord.h"
+#include "SkRecordDraw.h"
+
+#include "BenchTimer.h"
+#include "DumpRecord.h"
+
+namespace {
+
+class Dumper {
+public:
+    explicit Dumper(SkCanvas* canvas, int count, bool timeWithCommand)
+        : fDigits(0)
+        , fIndent(0)
+        , fDraw(canvas)
+        , fTimeWithCommand(timeWithCommand) {
+        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 (!fTimeWithCommand) {
+            printf("%6.1f ", time * 1000);
+        }
+        printf("%*d ", fDigits, fDraw.index());
+        for (int i = 0; i < fIndent; i++) {
+            putchar('\t');
+        }
+        if (fTimeWithCommand) {
+            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;
+    const bool fTimeWithCommand;
+};
+
+}  // namespace
+
+void DumpRecord(const SkRecord& record,
+                  SkCanvas* canvas,
+                  bool timeWithCommand) {
+    for (Dumper dumper(canvas, record.count(), timeWithCommand);
+         dumper.index() < record.count();
+         dumper.next()) {
+        record.visit<void>(dumper.index(), dumper);
+    }
+}
diff --git a/tools/DumpRecord.h b/tools/DumpRecord.h
new file mode 100644
index 0000000000..47097472b1
--- /dev/null
+++ b/tools/DumpRecord.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+#ifndef DumpRecord_DEFINED
+#define DumpRecord_DEFINED
+
+class SkRecord;
+class SkCanvas;
+
+/**
+ * Draw the record to the supplied canvas via SkRecords::Draw, while
+ * printing each draw command and run time in microseconds to stdout.
+ *
+ * @param timeWithCommand If true, print time next to command, else in
+ *        first column.
+ */
+void DumpRecord(const SkRecord& record,
+                SkCanvas* canvas,
+                bool timeWithCommand);
+
+#endif  // DumpRecord_DEFINED
diff --git a/tools/dump_record.cpp b/tools/dump_record.cpp
index 2d851e7c9f..14b1a5bbe0 100644
--- a/tools/dump_record.cpp
+++ b/tools/dump_record.cpp
@@ -7,118 +7,35 @@
 
 #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);