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epoger@google.comec3ed6a2011-07-28 14:26:00 +00001/*
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 */
bungemand3ebb482015-08-05 13:57:49 -07007
senorblanco@chromium.org4868e6b2011-02-18 19:03:01 +00008#include "gm.h"
reedfb8c1fc2015-08-04 18:44:56 -07009#include "SkBlurDrawLooper.h"
bungemand3ebb482015-08-05 13:57:49 -070010#include "SkBlurMask.h"
mtklein7a1f45f2016-08-04 06:19:33 -070011#include "SkColorFilter.h"
12#include "SkMaskFilter.h"
bungemand3ebb482015-08-05 13:57:49 -070013#include "SkPath.h"
senorblanco@chromium.org4868e6b2011-02-18 19:03:01 +000014
15namespace skiagm {
16
17///////////////////////////////////////////////////////////////////////////////
18
reed@google.come3605d02011-05-26 15:12:35 +000019static void setup(SkPaint* paint, SkColor c, SkScalar strokeWidth) {
20 paint->setColor(c);
21 if (strokeWidth < 0) {
22 paint->setStyle(SkPaint::kFill_Style);
23 } else {
24 paint->setStyle(SkPaint::kStroke_Style);
25 paint->setStrokeWidth(strokeWidth);
26 }
27}
senorblanco@chromium.org4868e6b2011-02-18 19:03:01 +000028
reed@google.come3605d02011-05-26 15:12:35 +000029class ShadowsGM : public GM {
senorblanco@chromium.org4868e6b2011-02-18 19:03:01 +000030public:
31 SkPath fCirclePath;
reed@google.come3605d02011-05-26 15:12:35 +000032 SkRect fRect;
caryclark500ab752015-09-04 05:20:32 -070033 SkBitmap fBitmap;
reed@google.come3605d02011-05-26 15:12:35 +000034
caryclark63c684a2015-02-25 09:04:04 -080035protected:
mtklein36352bf2015-03-25 18:17:31 -070036 void onOnceBeforeDraw() override {
caryclark65cdba62015-06-15 06:51:08 -070037 this->setBGColor(sk_tool_utils::color_to_565(0xFFDDDDDD));
senorblanco@chromium.org4868e6b2011-02-18 19:03:01 +000038 fCirclePath.addCircle(SkIntToScalar(20), SkIntToScalar(20), SkIntToScalar(10) );
reed@google.come3605d02011-05-26 15:12:35 +000039 fRect.set(SkIntToScalar(10), SkIntToScalar(10),
40 SkIntToScalar(30), SkIntToScalar(30));
caryclark500ab752015-09-04 05:20:32 -070041 fBitmap.allocPixels(SkImageInfo::Make(20, 20, SkColorType::kAlpha_8_SkColorType,
42 kPremul_SkAlphaType));
43 SkCanvas canvas(fBitmap);
44 canvas.clear(0x0);
45 SkPaint p;
46 canvas.drawRect(SkRect::MakeXYWH(10, 0, 10, 10), p);
47 canvas.drawRect(SkRect::MakeXYWH(0, 10, 10, 10), p);
senorblanco@chromium.org4868e6b2011-02-18 19:03:01 +000048 }
49
mtkleinf0599002015-07-13 06:18:39 -070050 SkString onShortName() override {
senorblanco@chromium.org4868e6b2011-02-18 19:03:01 +000051 return SkString("shadows");
52 }
53
mtkleinf0599002015-07-13 06:18:39 -070054 SkISize onISize() override {
caryclarkc8b350d2015-09-04 06:19:48 -070055 return SkISize::Make(200, 200);
senorblanco@chromium.org4868e6b2011-02-18 19:03:01 +000056 }
57
mtkleinf0599002015-07-13 06:18:39 -070058 void onDraw(SkCanvas* canvas) override {
reed7b380d02016-03-21 13:25:16 -070059 sk_sp<SkDrawLooper> shadowLoopers[] = {
60 SkBlurDrawLooper::Make(SK_ColorBLUE,
mtkleinf0599002015-07-13 06:18:39 -070061 SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(10)),
62 SkIntToScalar(5), SkIntToScalar(10),
63 SkBlurDrawLooper::kIgnoreTransform_BlurFlag |
64 SkBlurDrawLooper::kOverrideColor_BlurFlag |
reed7b380d02016-03-21 13:25:16 -070065 SkBlurDrawLooper::kHighQuality_BlurFlag),
66 SkBlurDrawLooper::Make(SK_ColorBLUE,
mtkleinf0599002015-07-13 06:18:39 -070067 SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(10)),
68 SkIntToScalar(5), SkIntToScalar(10),
69 SkBlurDrawLooper::kIgnoreTransform_BlurFlag |
reed7b380d02016-03-21 13:25:16 -070070 SkBlurDrawLooper::kOverrideColor_BlurFlag),
71 SkBlurDrawLooper::Make(SK_ColorBLACK,
mtkleinf0599002015-07-13 06:18:39 -070072 SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(5)),
73 SkIntToScalar(5),
74 SkIntToScalar(10),
75 SkBlurDrawLooper::kIgnoreTransform_BlurFlag |
reed7b380d02016-03-21 13:25:16 -070076 SkBlurDrawLooper::kHighQuality_BlurFlag),
77 SkBlurDrawLooper::Make(0x7FFF0000,
mtkleinf0599002015-07-13 06:18:39 -070078 SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(5)),
79 SkIntToScalar(-5), SkIntToScalar(-10),
80 SkBlurDrawLooper::kIgnoreTransform_BlurFlag |
81 SkBlurDrawLooper::kOverrideColor_BlurFlag |
reed7b380d02016-03-21 13:25:16 -070082 SkBlurDrawLooper::kHighQuality_BlurFlag),
83 SkBlurDrawLooper::Make(SK_ColorBLACK, SkIntToScalar(0),
mtkleinf0599002015-07-13 06:18:39 -070084 SkIntToScalar(5), SkIntToScalar(5),
85 SkBlurDrawLooper::kIgnoreTransform_BlurFlag |
86 SkBlurDrawLooper::kOverrideColor_BlurFlag |
reed7b380d02016-03-21 13:25:16 -070087 SkBlurDrawLooper::kHighQuality_BlurFlag),
88 };
senorblanco@chromium.org4868e6b2011-02-18 19:03:01 +000089
mtkleindbfd7ab2016-09-01 11:24:54 -070090 constexpr struct {
mtkleinf0599002015-07-13 06:18:39 -070091 SkColor fColor;
92 SkScalar fStrokeWidth;
93 } gRec[] = {
94 { SK_ColorRED, -SK_Scalar1 },
95 { SK_ColorGREEN, SkIntToScalar(4) },
96 { SK_ColorBLUE, SkIntToScalar(0)},
97 };
reed@google.come3605d02011-05-26 15:12:35 +000098
mtkleinf0599002015-07-13 06:18:39 -070099 SkPaint paint;
100 paint.setAntiAlias(true);
101 for (size_t i = 0; i < SK_ARRAY_COUNT(shadowLoopers); ++i) {
102 SkAutoCanvasRestore acr(canvas, true);
reed@google.come3605d02011-05-26 15:12:35 +0000103
mtkleinf0599002015-07-13 06:18:39 -0700104 paint.setLooper(shadowLoopers[i]);
reed@google.come3605d02011-05-26 15:12:35 +0000105
mtkleinf0599002015-07-13 06:18:39 -0700106 canvas->translate(SkIntToScalar((unsigned int)i*40), SkIntToScalar(0));
107 setup(&paint, gRec[0].fColor, gRec[0].fStrokeWidth);
108 canvas->drawRect(fRect, paint);
reed@google.come3605d02011-05-26 15:12:35 +0000109
mtkleinf0599002015-07-13 06:18:39 -0700110 canvas->translate(SkIntToScalar(0), SkIntToScalar(40));
111 setup(&paint, gRec[1].fColor, gRec[1].fStrokeWidth);
112 canvas->drawPath(fCirclePath, paint);
junov@chromium.org7c545bd2012-04-05 13:20:59 +0000113
mtkleinf0599002015-07-13 06:18:39 -0700114 canvas->translate(SkIntToScalar(0), SkIntToScalar(40));
115 setup(&paint, gRec[2].fColor, gRec[2].fStrokeWidth);
116 canvas->drawPath(fCirclePath, paint);
caryclark500ab752015-09-04 05:20:32 -0700117
118 // see bug.skia.org/562 (reference, draws correct)
119 canvas->translate(0, 40);
120 paint.setColor(SK_ColorBLACK);
121 canvas->drawBitmap(fBitmap, 10, 10, &paint);
122
123 canvas->translate(0, 40);
reed1a9b9642016-03-13 14:13:58 -0700124 paint.setShader(SkShader::MakeBitmapShader(
caryclark500ab752015-09-04 05:20:32 -0700125 fBitmap, SkShader::kRepeat_TileMode,
126 SkShader::kRepeat_TileMode));
127
128 // see bug.skia.org/562 (shows bug as reported)
caryclark500ab752015-09-04 05:20:32 -0700129 paint.setStyle(SkPaint::kFill_Style);
130 canvas->drawRect(SkRect::MakeXYWH(10, 10, 20, 20), paint);
131 paint.setShader(nullptr);
mtkleinf0599002015-07-13 06:18:39 -0700132 }
senorblanco@chromium.org4868e6b2011-02-18 19:03:01 +0000133 }
senorblanco@chromium.org4868e6b2011-02-18 19:03:01 +0000134
135private:
136 typedef GM INHERITED;
137};
138
139///////////////////////////////////////////////////////////////////////////////
140
141static GM* MyFactory(void*) { return new ShadowsGM; }
142static GMRegistry reg(MyFactory);
143
144}