Android example source code file (Script.java)

This example Android source code file (Script.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

baseobj, builder, invokable, max_slot, renderscript, runtimeexception, script, string, type, utf-8

The Script.java Android example source code

/*
 * Copyright (C) 2008 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 android.renderscript;

/**
 * @hide
 **/
public class Script extends BaseObj {
    public static final int MAX_SLOT = 16;

    boolean mIsRoot;
    Type[] mTypes;
    boolean[] mWritable;
    Invokable[] mInvokables;

    public static class Invokable {
        RenderScript mRS;
        Script mScript;
        int mSlot;
        String mName;

        Invokable() {
            mSlot = -1;
        }

        public void execute() {
            mRS.nScriptInvoke(mScript.mID, mSlot);
        }
    }

    Script(int id, RenderScript rs) {
        super(rs);
        mID = id;
    }

    public void bindAllocation(Allocation va, int slot) {
        mRS.validate();
        mRS.nScriptBindAllocation(mID, va.mID, slot);
    }

    public void setClearColor(float r, float g, float b, float a) {
        mRS.validate();
        mRS.nScriptSetClearColor(mID, r, g, b, a);
    }

    public void setClearDepth(float d) {
        mRS.validate();
        mRS.nScriptSetClearDepth(mID, d);
    }

    public void setClearStencil(int stencil) {
        mRS.validate();
        mRS.nScriptSetClearStencil(mID, stencil);
    }

    public void setTimeZone(String timeZone) {
        mRS.validate();
        try {
            mRS.nScriptSetTimeZone(mID, timeZone.getBytes("UTF-8"));
        } catch (java.io.UnsupportedEncodingException e) {
            throw new RuntimeException(e);
        }
    }

    public static class Builder {
        RenderScript mRS;
        boolean mIsRoot = false;
        Type[] mTypes;
        String[] mNames;
        boolean[] mWritable;
        int mInvokableCount = 0;
        Invokable[] mInvokables;

        Builder(RenderScript rs) {
            mRS = rs;
            mTypes = new Type[MAX_SLOT];
            mNames = new String[MAX_SLOT];
            mWritable = new boolean[MAX_SLOT];
            mInvokables = new Invokable[MAX_SLOT];
        }

        public void setType(Type t, int slot) {
            mTypes[slot] = t;
            mNames[slot] = null;
        }

        public void setType(Type t, String name, int slot) {
            mTypes[slot] = t;
            mNames[slot] = name;
        }

        public Invokable addInvokable(String func) {
            Invokable i = new Invokable();
            i.mName = func;
            i.mRS = mRS;
            i.mSlot = mInvokableCount;
            mInvokables[mInvokableCount++] = i;
            return i;
        }

        public void setType(boolean writable, int slot) {
            mWritable[slot] = writable;
        }

        void transferCreate() {
            mRS.nScriptSetRoot(mIsRoot);
            for(int ct=0; ct < mTypes.length; ct++) {
                if(mTypes[ct] != null) {
                    mRS.nScriptSetType(mTypes[ct].mID, mWritable[ct], mNames[ct], ct);
                }
            }
            for(int ct=0; ct < mInvokableCount; ct++) {
                mRS.nScriptSetInvokable(mInvokables[ct].mName, ct);
            }
        }

        void transferObject(Script s) {
            s.mIsRoot = mIsRoot;
            s.mTypes = mTypes;
            s.mInvokables = new Invokable[mInvokableCount];
            for(int ct=0; ct < mInvokableCount; ct++) {
                s.mInvokables[ct] = mInvokables[ct];
                s.mInvokables[ct].mScript = s;
            }
            s.mInvokables = null;
        }

        public void setRoot(boolean r) {
            mIsRoot = r;
        }

    }

}