1 /*
2 * Copyright 2011 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 #include "gm.h"
8 #include "sk_tool_utils.h"
9 #include "SkColorPriv.h"
10 #include "SkShader.h"
11 #include "SkCanvas.h"
12 #include "SkUtils.h"
13
14 namespace skiagm {
15
make_bitmap()16 static SkBitmap make_bitmap() {
17 const SkPMColor c[] = { SkPackARGB32(0x80, 0x80, 0, 0) };
18 SkColorTable* ctable = new SkColorTable(c, SK_ARRAY_COUNT(c));
19
20 SkBitmap bm;
21 bm.allocPixels(SkImageInfo::Make(1, 1, kIndex_8_SkColorType,
22 kPremul_SkAlphaType),
23 nullptr, ctable);
24 ctable->unref();
25
26 bm.lockPixels();
27 *bm.getAddr8(0, 0) = 0;
28 bm.unlockPixels();
29 return bm;
30 }
31
32 class TinyBitmapGM : public GM {
33 public:
TinyBitmapGM()34 TinyBitmapGM() {
35 this->setBGColor(sk_tool_utils::color_to_565(0xFFDDDDDD));
36 }
37
38 protected:
onShortName()39 SkString onShortName() {
40 return SkString("tinybitmap");
41 }
42
onISize()43 virtual SkISize onISize() { return SkISize::Make(100, 100); }
44
onDraw(SkCanvas * canvas)45 virtual void onDraw(SkCanvas* canvas) {
46 SkBitmap bm = make_bitmap();
47 SkPaint paint;
48 paint.setAlpha(0x80);
49 paint.setShader(SkShader::MakeBitmapShader(bm, SkShader::kRepeat_TileMode,
50 SkShader::kMirror_TileMode));
51 canvas->drawPaint(paint);
52 }
53
54 private:
55 typedef GM INHERITED;
56 };
57
58 //////////////////////////////////////////////////////////////////////////////
59
MyFactory(void *)60 static GM* MyFactory(void*) { return new TinyBitmapGM; }
61 static GMRegistry reg(MyFactory);
62
63 }
64