jvanverth | d17a329 | 2015-07-09 09:04:16 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 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 | */ |
msarett | d15750c | 2016-03-18 15:48:49 -0700 | [diff] [blame] | 7 | #include "DecodeFile.h" |
jvanverth | d17a329 | 2015-07-09 09:04:16 -0700 | [diff] [blame] | 8 | #include "SampleCode.h" |
| 9 | #include "Resources.h" |
| 10 | |
| 11 | #include "SkCanvas.h" |
robertphillips | 5f865b9 | 2015-07-29 12:28:04 -0700 | [diff] [blame] | 12 | #include "SkLightingShader.h" |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 13 | #include "SkPoint3.h" |
| 14 | |
robertphillips | 71e0552 | 2016-05-31 12:08:25 -0700 | [diff] [blame] | 15 | static sk_sp<SkLights> create_lights(SkScalar angle, SkScalar blue) { |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 16 | |
| 17 | const SkVector3 dir = SkVector3::Make(SkScalarSin(angle)*SkScalarSin(SK_ScalarPI*0.25f), |
| 18 | SkScalarCos(angle)*SkScalarSin(SK_ScalarPI*0.25f), |
| 19 | SkScalarCos(SK_ScalarPI*0.25f)); |
| 20 | |
robertphillips | 71e0552 | 2016-05-31 12:08:25 -0700 | [diff] [blame] | 21 | SkLights::Builder builder; |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 22 | |
robertphillips | 71e0552 | 2016-05-31 12:08:25 -0700 | [diff] [blame] | 23 | builder.add(SkLights::Light(SkColor3f::Make(1.0f, 1.0f, blue), dir)); |
| 24 | builder.add(SkLights::Light(SkColor3f::Make(0.1f, 0.1f, 0.1f))); |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 25 | |
| 26 | return builder.finish(); |
| 27 | } |
jvanverth | d17a329 | 2015-07-09 09:04:16 -0700 | [diff] [blame] | 28 | |
| 29 | //////////////////////////////////////////////////////////////////////////// |
| 30 | |
| 31 | class LightingView : public SampleView { |
| 32 | public: |
reed | fe63045 | 2016-03-25 09:08:00 -0700 | [diff] [blame] | 33 | SkBitmap fDiffuseBitmap; |
| 34 | SkBitmap fNormalBitmap; |
| 35 | SkScalar fLightAngle; |
| 36 | SkScalar fColorFactor; |
jvanverth | d17a329 | 2015-07-09 09:04:16 -0700 | [diff] [blame] | 37 | |
| 38 | LightingView() { |
| 39 | SkString diffusePath = GetResourcePath("brickwork-texture.jpg"); |
msarett | d15750c | 2016-03-18 15:48:49 -0700 | [diff] [blame] | 40 | decode_file(diffusePath.c_str(), &fDiffuseBitmap); |
jvanverth | d17a329 | 2015-07-09 09:04:16 -0700 | [diff] [blame] | 41 | SkString normalPath = GetResourcePath("brickwork_normal-map.jpg"); |
msarett | d15750c | 2016-03-18 15:48:49 -0700 | [diff] [blame] | 42 | decode_file(normalPath.c_str(), &fNormalBitmap); |
jvanverth | d17a329 | 2015-07-09 09:04:16 -0700 | [diff] [blame] | 43 | |
| 44 | fLightAngle = 0.0f; |
robertphillips | a9652ac | 2015-07-31 05:17:24 -0700 | [diff] [blame] | 45 | fColorFactor = 0.0f; |
jvanverth | d17a329 | 2015-07-09 09:04:16 -0700 | [diff] [blame] | 46 | } |
| 47 | |
jvanverth | d17a329 | 2015-07-09 09:04:16 -0700 | [diff] [blame] | 48 | protected: |
| 49 | // overrides from SkEventSink |
| 50 | bool onQuery(SkEvent* evt) override { |
| 51 | if (SampleCode::TitleQ(*evt)) { |
| 52 | SampleCode::TitleR(evt, "Lighting"); |
| 53 | return true; |
| 54 | } |
| 55 | return this->INHERITED::onQuery(evt); |
| 56 | } |
| 57 | |
| 58 | void onDrawContent(SkCanvas* canvas) override { |
| 59 | fLightAngle += 0.015f; |
robertphillips | a9652ac | 2015-07-31 05:17:24 -0700 | [diff] [blame] | 60 | fColorFactor += 0.01f; |
| 61 | if (fColorFactor > 1.0f) { |
| 62 | fColorFactor = 0.0f; |
| 63 | } |
jvanverth | d17a329 | 2015-07-09 09:04:16 -0700 | [diff] [blame] | 64 | |
robertphillips | 71e0552 | 2016-05-31 12:08:25 -0700 | [diff] [blame] | 65 | sk_sp<SkLights> lights(create_lights(fLightAngle, fColorFactor)); |
reed | fe63045 | 2016-03-25 09:08:00 -0700 | [diff] [blame] | 66 | SkPaint paint; |
| 67 | paint.setShader(SkLightingShader::Make(fDiffuseBitmap, fNormalBitmap, |
robertphillips | 71e0552 | 2016-05-31 12:08:25 -0700 | [diff] [blame] | 68 | std::move(lights), SkVector::Make(1.0f, 0.0f), |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 69 | nullptr, nullptr)); |
jvanverth | d17a329 | 2015-07-09 09:04:16 -0700 | [diff] [blame] | 70 | paint.setColor(SK_ColorBLACK); |
| 71 | |
halcanary | 9d524f2 | 2016-03-29 09:03:52 -0700 | [diff] [blame] | 72 | SkRect r = SkRect::MakeWH((SkScalar)fDiffuseBitmap.width(), |
jvanverth | d17a329 | 2015-07-09 09:04:16 -0700 | [diff] [blame] | 73 | (SkScalar)fDiffuseBitmap.height()); |
| 74 | canvas->drawRect(r, paint); |
| 75 | |
| 76 | // so we're constantly updating |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 77 | this->inval(nullptr); |
jvanverth | d17a329 | 2015-07-09 09:04:16 -0700 | [diff] [blame] | 78 | } |
| 79 | |
| 80 | SkView::Click* onFindClickHandler(SkScalar x, SkScalar y, unsigned modi) override { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 81 | this->inval(nullptr); |
jvanverth | d17a329 | 2015-07-09 09:04:16 -0700 | [diff] [blame] | 82 | return this->INHERITED::onFindClickHandler(x, y, modi); |
| 83 | } |
| 84 | |
| 85 | private: |
| 86 | typedef SampleView INHERITED; |
| 87 | }; |
| 88 | |
| 89 | ////////////////////////////////////////////////////////////////////////////// |
| 90 | |
| 91 | static SkView* MyFactory() { return new LightingView; } |
| 92 | static SkViewRegister reg(MyFactory); |