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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.scenegraph;
import java.lang.Math;
import java.util.ArrayList;
import android.content.res.Resources;
import android.renderscript.*;
import android.util.Log;
/**
* @hide
*/
public class VertexShader extends Shader {
ProgramVertex mProgram;
ScriptField_VertexShader_s mField;
public static class Builder {
VertexShader mShader;
ProgramVertex.Builder mBuilder;
public Builder(RenderScriptGL rs) {
mShader = new VertexShader();
mBuilder = new ProgramVertex.Builder(rs);
}
public Builder setShader(Resources resources, int resourceID) {
mBuilder.setShader(resources, resourceID);
return this;
}
public Builder setShader(String code) {
mBuilder.setShader(code);
return this;
}
public Builder setObjectConst(Type type) {
mShader.mPerObjConstants = type;
return this;
}
public Builder setShaderConst(Type type) {
mShader.mPerShaderConstants = type;
return this;
}
public Builder addInput(Element e) {
mBuilder.addInput(e);
return this;
}
public VertexShader create() {
if (mShader.mPerShaderConstants != null) {
mBuilder.addConstant(mShader.mPerShaderConstants);
}
if (mShader.mPerObjConstants != null) {
mBuilder.addConstant(mShader.mPerObjConstants);
}
mShader.mProgram = mBuilder.create();
return mShader;
}
}
public ProgramVertex getProgram() {
return mProgram;
}
ScriptField_VertexShader_s getRSData() {
if (mField != null) {
return mField;
}
RenderScriptGL rs = SceneManager.getRS();
Resources res = SceneManager.getRes();
if (rs == null || res == null) {
return null;
}
ScriptField_VertexShader_s.Item item = new ScriptField_VertexShader_s.Item();
item.program = mProgram;
linkConstants(rs);
if (mPerShaderConstants != null) {
item.shaderConst = mConstantBuffer;
item.shaderConstParams = mConstantBufferParams.getAllocation();
mProgram.bindConstants(item.shaderConst, 0);
}
item.objectConstIndex = -1;
if (mPerObjConstants != null) {
item.objectConstIndex = mPerShaderConstants != null ? 1 : 0;
}
mField = new ScriptField_VertexShader_s(rs, 1);
mField.set(item, 0, true);
return mField;
}
}
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