jvanverth | d17a329 | 2015-07-09 09:04:16 -0700 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Copyright 2015 Google Inc. |
| 4 | * |
| 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
| 7 | */ |
msarett | d15750c | 2016-03-18 15:48:49 -0700 | [diff] [blame] | 8 | #include "DecodeFile.h" |
jvanverth | d17a329 | 2015-07-09 09:04:16 -0700 | [diff] [blame] | 9 | #include "SampleCode.h" |
| 10 | #include "Resources.h" |
| 11 | |
| 12 | #include "SkCanvas.h" |
robertphillips | 5f865b9 | 2015-07-29 12:28:04 -0700 | [diff] [blame] | 13 | #include "SkLightingShader.h" |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 14 | #include "SkPoint3.h" |
| 15 | |
| 16 | static const SkLightingShader::Lights* create_lights(SkScalar angle, SkScalar blue) { |
| 17 | |
| 18 | const SkVector3 dir = SkVector3::Make(SkScalarSin(angle)*SkScalarSin(SK_ScalarPI*0.25f), |
| 19 | SkScalarCos(angle)*SkScalarSin(SK_ScalarPI*0.25f), |
| 20 | SkScalarCos(SK_ScalarPI*0.25f)); |
| 21 | |
| 22 | SkLightingShader::Lights::Builder builder; |
| 23 | |
| 24 | builder.add(SkLight(SkColor3f::Make(1.0f, 1.0f, blue), dir)); |
| 25 | builder.add(SkLight(SkColor3f::Make(0.1f, 0.1f, 0.1f))); |
| 26 | |
| 27 | return builder.finish(); |
| 28 | } |
jvanverth | d17a329 | 2015-07-09 09:04:16 -0700 | [diff] [blame] | 29 | |
| 30 | //////////////////////////////////////////////////////////////////////////// |
| 31 | |
| 32 | class LightingView : public SampleView { |
| 33 | public: |
reed | fe63045 | 2016-03-25 09:08:00 -0700 | [diff] [blame^] | 34 | SkBitmap fDiffuseBitmap; |
| 35 | SkBitmap fNormalBitmap; |
| 36 | SkScalar fLightAngle; |
| 37 | SkScalar fColorFactor; |
jvanverth | d17a329 | 2015-07-09 09:04:16 -0700 | [diff] [blame] | 38 | |
| 39 | LightingView() { |
| 40 | SkString diffusePath = GetResourcePath("brickwork-texture.jpg"); |
msarett | d15750c | 2016-03-18 15:48:49 -0700 | [diff] [blame] | 41 | decode_file(diffusePath.c_str(), &fDiffuseBitmap); |
jvanverth | d17a329 | 2015-07-09 09:04:16 -0700 | [diff] [blame] | 42 | SkString normalPath = GetResourcePath("brickwork_normal-map.jpg"); |
msarett | d15750c | 2016-03-18 15:48:49 -0700 | [diff] [blame] | 43 | decode_file(normalPath.c_str(), &fNormalBitmap); |
jvanverth | d17a329 | 2015-07-09 09:04:16 -0700 | [diff] [blame] | 44 | |
| 45 | fLightAngle = 0.0f; |
robertphillips | a9652ac | 2015-07-31 05:17:24 -0700 | [diff] [blame] | 46 | fColorFactor = 0.0f; |
jvanverth | d17a329 | 2015-07-09 09:04:16 -0700 | [diff] [blame] | 47 | } |
| 48 | |
jvanverth | d17a329 | 2015-07-09 09:04:16 -0700 | [diff] [blame] | 49 | protected: |
| 50 | // overrides from SkEventSink |
| 51 | bool onQuery(SkEvent* evt) override { |
| 52 | if (SampleCode::TitleQ(*evt)) { |
| 53 | SampleCode::TitleR(evt, "Lighting"); |
| 54 | return true; |
| 55 | } |
| 56 | return this->INHERITED::onQuery(evt); |
| 57 | } |
| 58 | |
| 59 | void onDrawContent(SkCanvas* canvas) override { |
| 60 | fLightAngle += 0.015f; |
robertphillips | a9652ac | 2015-07-31 05:17:24 -0700 | [diff] [blame] | 61 | fColorFactor += 0.01f; |
| 62 | if (fColorFactor > 1.0f) { |
| 63 | fColorFactor = 0.0f; |
| 64 | } |
jvanverth | d17a329 | 2015-07-09 09:04:16 -0700 | [diff] [blame] | 65 | |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 66 | SkAutoTUnref<const SkLightingShader::Lights> lights(create_lights(fLightAngle, |
| 67 | fColorFactor)); |
reed | fe63045 | 2016-03-25 09:08:00 -0700 | [diff] [blame^] | 68 | SkPaint paint; |
| 69 | paint.setShader(SkLightingShader::Make(fDiffuseBitmap, fNormalBitmap, |
robertphillips | 2f0dbc7 | 2015-08-20 05:15:06 -0700 | [diff] [blame] | 70 | lights, SkVector::Make(1.0f, 0.0f), |
| 71 | nullptr, nullptr)); |
jvanverth | d17a329 | 2015-07-09 09:04:16 -0700 | [diff] [blame] | 72 | paint.setColor(SK_ColorBLACK); |
| 73 | |
| 74 | SkRect r = SkRect::MakeWH((SkScalar)fDiffuseBitmap.width(), |
| 75 | (SkScalar)fDiffuseBitmap.height()); |
| 76 | canvas->drawRect(r, paint); |
| 77 | |
| 78 | // so we're constantly updating |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 79 | this->inval(nullptr); |
jvanverth | d17a329 | 2015-07-09 09:04:16 -0700 | [diff] [blame] | 80 | } |
| 81 | |
| 82 | SkView::Click* onFindClickHandler(SkScalar x, SkScalar y, unsigned modi) override { |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 83 | this->inval(nullptr); |
jvanverth | d17a329 | 2015-07-09 09:04:16 -0700 | [diff] [blame] | 84 | return this->INHERITED::onFindClickHandler(x, y, modi); |
| 85 | } |
| 86 | |
| 87 | private: |
| 88 | typedef SampleView INHERITED; |
| 89 | }; |
| 90 | |
| 91 | ////////////////////////////////////////////////////////////////////////////// |
| 92 | |
| 93 | static SkView* MyFactory() { return new LightingView; } |
| 94 | static SkViewRegister reg(MyFactory); |