Robert Phillips | a8cdbd7 | 2018-07-17 12:30:40 -0400 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Copyright 2016 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 | */ |
| 8 | |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 9 | #include "src/core/SkReadBuffer.h" |
| 10 | #include "src/shaders/SkLights.h" |
Robert Phillips | a8cdbd7 | 2018-07-17 12:30:40 -0400 | [diff] [blame] | 11 | |
| 12 | sk_sp<SkLights> SkLights::MakeFromBuffer(SkReadBuffer& buf) { |
| 13 | Builder builder; |
| 14 | |
| 15 | SkColor3f ambColor; |
| 16 | if (!buf.readScalarArray(&ambColor.fX, 3)) { |
| 17 | return nullptr; |
| 18 | } |
| 19 | |
| 20 | builder.setAmbientLightColor(ambColor); |
| 21 | |
| 22 | int numLights = buf.readInt(); |
| 23 | |
| 24 | for (int l = 0; l < numLights; ++l) { |
| 25 | bool isPoint = buf.readBool(); |
| 26 | |
| 27 | SkColor3f color; |
| 28 | if (!buf.readScalarArray(&color.fX, 3)) { |
| 29 | return nullptr; |
| 30 | } |
| 31 | |
| 32 | SkVector3 dirOrPos; |
| 33 | if (!buf.readScalarArray(&dirOrPos.fX, 3)) { |
| 34 | return nullptr; |
| 35 | } |
| 36 | |
| 37 | if (isPoint) { |
| 38 | SkScalar intensity; |
| 39 | intensity = buf.readScalar(); |
| 40 | Light light = Light::MakePoint(color, dirOrPos, intensity); |
| 41 | builder.add(light); |
| 42 | } else { |
| 43 | Light light = Light::MakeDirectional(color, dirOrPos); |
| 44 | builder.add(light); |
| 45 | } |
| 46 | } |
| 47 | |
| 48 | return builder.finish(); |
| 49 | } |
| 50 | |
Robert Phillips | a8cdbd7 | 2018-07-17 12:30:40 -0400 | [diff] [blame] | 51 | void SkLights::flatten(SkWriteBuffer& buf) const { |
| 52 | buf.writeScalarArray(&this->ambientLightColor().fX, 3); |
| 53 | |
| 54 | buf.writeInt(this->numLights()); |
| 55 | for (int l = 0; l < this->numLights(); ++l) { |
| 56 | const Light& light = this->light(l); |
| 57 | |
| 58 | bool isPoint = Light::kPoint_LightType == light.type(); |
| 59 | |
| 60 | buf.writeBool(isPoint); |
| 61 | buf.writeScalarArray(&light.color().fX, 3); |
| 62 | buf.writeScalarArray(&light.dir().fX, 3); |
| 63 | |
| 64 | if (isPoint) { |
| 65 | buf.writeScalar(light.intensity()); |
| 66 | } |
| 67 | } |
| 68 | } |