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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 java.util.HashMap;
import com.android.scenegraph.Transform;
import android.renderscript.Element;
import android.renderscript.Matrix4f;
import android.renderscript.ProgramFragment;
import android.renderscript.ProgramStore;
import android.renderscript.ProgramVertex;
import android.renderscript.RenderScriptGL;
import android.util.Log;
/**
* @hide
*/
public abstract class ShaderParam extends SceneGraphBase {
static final int FLOAT4_DATA = 0;
static final int FLOAT4_CAMERA_POS = 1;
static final int FLOAT4_CAMERA_DIR = 2;
static final int FLOAT4_LIGHT_COLOR = 3;
static final int FLOAT4_LIGHT_POS = 4;
static final int FLOAT4_LIGHT_DIR = 5;
static final int TRANSFORM_DATA = 100;
static final int TRANSFORM_VIEW = 101;
static final int TRANSFORM_PROJ = 102;
static final int TRANSFORM_VIEW_PROJ = 103;
static final int TRANSFORM_MODEL = 104;
static final int TRANSFORM_MODEL_VIEW = 105;
static final int TRANSFORM_MODEL_VIEW_PROJ = 106;
static final int TEXTURE = 200;
static final String cameraPos = "cameraPos";
static final String cameraDir = "cameraDir";
static final String lightColor = "lightColor";
static final String lightPos = "lightPos";
static final String lightDir = "lightDir";
static final String view = "view";
static final String proj = "proj";
static final String viewProj = "viewProj";
static final String model = "model";
static final String modelView = "modelView";
static final String modelViewProj = "modelViewProj";
ScriptField_ShaderParam_s.Item mRsFieldItem;
String mParamName;
int mOffset;
static void fillInParams(Element constantElem,
HashMap<String, ShaderParam> sourceParams,
Transform transform,
ArrayList<ShaderParam> paramList) {
int subElemCount = constantElem.getSubElementCount();
for (int i = 0; i < subElemCount; i ++) {
String inputName = constantElem.getSubElementName(i);
int offset = constantElem.getSubElementOffsetBytes(i);
ShaderParam matchingParam = sourceParams.get(inputName);
Element subElem = constantElem.getSubElement(i);
// Make one if it's not there
if (matchingParam == null) {
if (subElem.getDataType() == Element.DataType.FLOAT_32) {
matchingParam = new Float4Param(inputName);
} else if (subElem.getDataType() == Element.DataType.MATRIX_4X4) {
TransformParam trParam = new TransformParam(inputName);
trParam.setTransform(transform);
matchingParam = trParam;
}
}
matchingParam.setOffset(offset);
if (subElem.getDataType() == Element.DataType.FLOAT_32) {
Float4Param fParam = (Float4Param)matchingParam;
fParam.setVecSize(subElem.getVectorSize());
}
paramList.add(matchingParam);
}
}
public ShaderParam(String name) {
mParamName = name;
}
public String getParamName() {
return mParamName;
}
void setOffset(int offset) {
mOffset = offset;
}
abstract void initLocalData(RenderScriptGL rs);
public ScriptField_ShaderParam_s.Item getRSData(RenderScriptGL rs) {
if (mRsFieldItem != null) {
return mRsFieldItem;
}
mRsFieldItem = new ScriptField_ShaderParam_s.Item();
initLocalData(rs);
return mRsFieldItem;
}
}
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