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/*
* 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;
import android.content.res.Resources;
import android.util.Log;
import java.io.IOException;
import java.io.InputStream;
import java.util.Map.Entry;
import java.util.HashMap;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
/**
* @hide
**/
public class ScriptC extends Script {
private static final String TAG = "ScriptC";
ScriptC(int id, RenderScript rs) {
super(id, rs);
}
public static class Builder extends Script.Builder {
byte[] mProgram;
int mProgramLength;
HashMap<String,Integer> mIntDefines = new HashMap();
HashMap<String,Float> mFloatDefines = new HashMap();
public Builder(RenderScript rs) {
super(rs);
}
public void setScript(String s) {
try {
mProgram = s.getBytes("UTF-8");
mProgramLength = mProgram.length;
} catch (java.io.UnsupportedEncodingException e) {
throw new RuntimeException(e);
}
}
public void setScript(Resources resources, int id) {
InputStream is = resources.openRawResource(id);
try {
try {
setScript(is);
} finally {
is.close();
}
} catch(IOException e) {
throw new Resources.NotFoundException();
}
}
public void setScript(InputStream is) throws IOException {
byte[] buf = new byte[1024];
int currentPos = 0;
while(true) {
int bytesLeft = buf.length - currentPos;
if (bytesLeft == 0) {
byte[] buf2 = new byte[buf.length * 2];
System.arraycopy(buf, 0, buf2, 0, buf.length);
buf = buf2;
bytesLeft = buf.length - currentPos;
}
int bytesRead = is.read(buf, currentPos, bytesLeft);
if (bytesRead <= 0) {
break;
}
currentPos += bytesRead;
}
mProgram = buf;
mProgramLength = currentPos;
}
static synchronized ScriptC internalCreate(Builder b) {
b.mRS.nScriptCBegin();
b.transferCreate();
for (Entry<String,Integer> e: b.mIntDefines.entrySet()) {
b.mRS.nScriptCAddDefineI32(e.getKey(), e.getValue().intValue());
}
for (Entry<String,Float> e: b.mFloatDefines.entrySet()) {
b.mRS.nScriptCAddDefineF(e.getKey(), e.getValue().floatValue());
}
b.mRS.nScriptCSetScript(b.mProgram, 0, b.mProgramLength);
int id = b.mRS.nScriptCCreate();
ScriptC obj = new ScriptC(id, b.mRS);
b.transferObject(obj);
return obj;
}
public void addDefine(String name, int value) {
mIntDefines.put(name, value);
}
public void addDefine(String name, float value) {
mFloatDefines.put(name, value);
}
/**
* Takes the all public static final fields for a class, and adds defines
* for them, using the name of the field as the name of the define.
*/
public void addDefines(Class cl) {
addDefines(cl.getFields(), (Modifier.STATIC | Modifier.FINAL | Modifier.PUBLIC), null);
}
/**
* Takes the all public fields for an object, and adds defines
* for them, using the name of the field as the name of the define.
*/
public void addDefines(Object o) {
addDefines(o.getClass().getFields(), Modifier.PUBLIC, o);
}
void addDefines(Field[] fields, int mask, Object o) {
for (Field f: fields) {
try {
if ((f.getModifiers() & mask) == mask) {
Class t = f.getType();
if (t == int.class) {
mIntDefines.put(f.getName(), f.getInt(o));
}
else if (t == float.class) {
mFloatDefines.put(f.getName(), f.getFloat(o));
}
}
} catch (IllegalAccessException ex) {
// TODO: Do we want this log?
Log.d(TAG, "addDefines skipping field " + f.getName());
}
}
}
public ScriptC create() {
return internalCreate(this);
}
}
}
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