1/*
2 * Copyright 2013 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 "SkImageDecoder.h"
13#include "SkOSFile.h"
14
15namespace skiagm {
16
17/**
18 *  Test copying an image from 8888 to 4444.
19 */
20class CopyTo4444GM : public GM {
21public:
22    CopyTo4444GM() {}
23
24protected:
25    virtual SkString onShortName() {
26        return SkString("copyTo4444");
27    }
28
29    virtual SkISize onISize() {
30        return SkISize::Make(1024, 512);
31    }
32
33    virtual void onDraw(SkCanvas* canvas) {
34        SkBitmap bm, bm4444;
35        SkString resourcePath = GetResourcePath();
36        SkString filename = SkOSPath::SkPathJoin(resourcePath.c_str(), "mandrill_512.png");
37        if (!SkImageDecoder::DecodeFile(filename.c_str(), &bm, kN32_SkColorType,
38                                        SkImageDecoder::kDecodePixels_Mode)) {
39            SkDebugf("Could not decode the file. Did you forget to set the "
40                     "resourcePath?\n");
41            return;
42        }
43        canvas->drawBitmap(bm, 0, 0);
44        SkAssertResult(bm.copyTo(&bm4444, kARGB_4444_SkColorType));
45        canvas->drawBitmap(bm4444, SkIntToScalar(bm.width()), 0);
46    }
47
48private:
49    typedef GM INHERITED;
50};
51
52//////////////////////////////////////////////////////////////////////////////
53
54static GM* MyFactory(void*) { return new CopyTo4444GM; }
55static GMRegistry reg(MyFactory);
56
57}
58