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
8 #include "gm.h"
9 #include "sk_tool_utils.h"
10 #include "SkBlurImageFilter.h"
11 #include "SkRandom.h"
12
13 // TODO deprecate imageblur
14
15 constexpr int kWidth = 500;
16 constexpr int kHeight = 500;
17
DEF_SIMPLE_GM(imageblur2,canvas,kWidth,kHeight)18 DEF_SIMPLE_GM(imageblur2, canvas, kWidth, kHeight) {
19 constexpr float kBlurSigmas[] = { 0.0, 0.3f, 0.5f, 2.0f, 32.0f, 80.0f };
20 const char* kTestStrings[] = {
21 "The quick`~",
22 "brown fox[]",
23 "jumped over",
24 "the lazy@#$",
25 "dog.{}!%^&",
26 "*()+=-\\'\"/",
27 };
28 constexpr int sigmaCount = SK_ARRAY_COUNT(kBlurSigmas);
29 constexpr int testStringCount = SK_ARRAY_COUNT(kTestStrings);
30 constexpr SkScalar dx = kWidth / sigmaCount;
31 constexpr SkScalar dy = kHeight / sigmaCount;
32 constexpr SkScalar textSize = 12;
33
34 SkFont font(sk_tool_utils::create_portable_typeface(), textSize);
35 font.setEdging(SkFont::Edging::kAlias);
36
37 for (int x = 0; x < sigmaCount; x++) {
38 SkScalar sigmaX = kBlurSigmas[x];
39 for (int y = 0; y < sigmaCount; y++) {
40 SkScalar sigmaY = kBlurSigmas[y];
41
42 SkPaint paint;
43 paint.setImageFilter(SkBlurImageFilter::Make(sigmaX, sigmaY, nullptr));
44 canvas->saveLayer(nullptr, &paint);
45
46 SkRandom rand;
47 SkPaint textPaint;
48 textPaint.setColor(sk_tool_utils::color_to_565(rand.nextBits(24) | 0xFF000000));
49 for (int i = 0; i < testStringCount; i++) {
50 canvas->drawString(kTestStrings[i],
51 SkIntToScalar(x * dx),
52 SkIntToScalar(y * dy + textSize * i + textSize),
53 font,
54 textPaint);
55 }
56 canvas->restore();
57 }
58 }
59 }
60