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1 /*
2  * Copyright 2012 Google Inc.
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 #include "gm.h"
9 
10 #include "Resources.h"
11 #include "SkCanvas.h"
12 #include "SkData.h"
13 #include "SkDiscardableMemoryPool.h"
14 #include "SkDiscardablePixelRef.h"
15 #include "SkImageDecoder.h"
16 #include "SkImageGeneratorPriv.h"
17 #include "SkOSFile.h"
18 #include "SkStream.h"
19 
20 namespace skiagm {
21 
22 /**
23  *  Draw a PNG created by SkBitmapFactory.
24  */
25 class FactoryGM : public GM {
26 public:
FactoryGM()27     FactoryGM() {}
28 
29 protected:
onOnceBeforeDraw()30     void onOnceBeforeDraw() override {
31         // Copyright-free file from http://openclipart.org/detail/29213/paper-plane-by-ddoo
32         SkString pngFilename = GetResourcePath("plane.png");
33         SkAutoDataUnref data(SkData::NewFromFileName(pngFilename.c_str()));
34         if (data.get()) {
35             // Create a cache which will boot the pixels out anytime the
36             // bitmap is unlocked.
37             SkAutoTUnref<SkDiscardableMemoryPool> pool(
38                 SkDiscardableMemoryPool::Create(1));
39             SkAssertResult(SkInstallDiscardablePixelRef(SkImageGenerator::NewFromData(data),
40                                                         &fBitmap, pool));
41         }
42     }
43 
onShortName()44     virtual SkString onShortName() override {
45         return SkString("factory");
46     }
47 
onISize()48     virtual SkISize onISize() override {
49         return SkISize::Make(640, 480);
50     }
51 
onDraw(SkCanvas * canvas)52     virtual void onDraw(SkCanvas* canvas) override {
53         canvas->drawBitmap(fBitmap, 0, 0);
54     }
55 
56 private:
57     SkBitmap fBitmap;
58 
59     typedef GM INHERITED;
60 };
61 
62 //////////////////////////////////////////////////////////////////////////////
63 
MyFactory(void *)64 static GM* MyFactory(void*) { return new FactoryGM; }
65 static GMRegistry reg(MyFactory);
66 
67 }  // namespace skiagm
68