1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.scenegraph; 18 19 import java.lang.Math; 20 import java.util.ArrayList; 21 22 import android.content.res.Resources; 23 import android.renderscript.*; 24 import android.util.Log; 25 26 /** 27 * @hide 28 */ 29 public class VertexShader extends Shader { 30 ProgramVertex mProgram; 31 ScriptField_VertexShader_s mField; 32 33 public static class Builder { 34 VertexShader mShader; 35 ProgramVertex.Builder mBuilder; 36 Builder(RenderScriptGL rs)37 public Builder(RenderScriptGL rs) { 38 mShader = new VertexShader(); 39 mBuilder = new ProgramVertex.Builder(rs); 40 } 41 setShader(Resources resources, int resourceID)42 public Builder setShader(Resources resources, int resourceID) { 43 mBuilder.setShader(resources, resourceID); 44 return this; 45 } 46 setShader(String code)47 public Builder setShader(String code) { 48 mBuilder.setShader(code); 49 return this; 50 } 51 setObjectConst(Type type)52 public Builder setObjectConst(Type type) { 53 mShader.mPerObjConstants = type; 54 return this; 55 } 56 setShaderConst(Type type)57 public Builder setShaderConst(Type type) { 58 mShader.mPerShaderConstants = type; 59 return this; 60 } 61 addInput(Element e)62 public Builder addInput(Element e) { 63 mBuilder.addInput(e); 64 return this; 65 } 66 create()67 public VertexShader create() { 68 if (mShader.mPerShaderConstants != null) { 69 mBuilder.addConstant(mShader.mPerShaderConstants); 70 } 71 if (mShader.mPerObjConstants != null) { 72 mBuilder.addConstant(mShader.mPerObjConstants); 73 } 74 mShader.mProgram = mBuilder.create(); 75 return mShader; 76 } 77 } 78 getProgram()79 public ProgramVertex getProgram() { 80 return mProgram; 81 } 82 getRSData()83 ScriptField_VertexShader_s getRSData() { 84 if (mField != null) { 85 return mField; 86 } 87 88 RenderScriptGL rs = SceneManager.getRS(); 89 Resources res = SceneManager.getRes(); 90 if (rs == null || res == null) { 91 return null; 92 } 93 94 ScriptField_VertexShader_s.Item item = new ScriptField_VertexShader_s.Item(); 95 item.program = mProgram; 96 97 linkConstants(rs); 98 if (mPerShaderConstants != null) { 99 item.shaderConst = mConstantBuffer; 100 item.shaderConstParams = mConstantBufferParams.getAllocation(); 101 mProgram.bindConstants(item.shaderConst, 0); 102 } 103 104 item.objectConstIndex = -1; 105 if (mPerObjConstants != null) { 106 item.objectConstIndex = mPerShaderConstants != null ? 1 : 0; 107 } 108 109 mField = new ScriptField_VertexShader_s(rs, 1); 110 mField.set(item, 0, true); 111 return mField; 112 } 113 } 114