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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 java.io.IOException;
import java.io.InputStream;
import android.content.res.Resources;
import android.os.Bundle;
import android.util.Config;
import android.util.Log;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
/**
* @hide
*
**/
public class Sampler extends BaseObj {
public enum Value {
NEAREST (0),
LINEAR (1),
LINEAR_MIP_LINEAR (2),
WRAP (3),
CLAMP (4);
int mID;
Value(int id) {
mID = id;
}
}
Sampler(int id, RenderScript rs) {
super(rs);
mID = id;
}
Sampler mSampler_CLAMP_NEAREST;
Sampler mSampler_CLAMP_LINEAR;
Sampler mSampler_CLAMP_LINEAR_MIP;
Sampler mSampler_WRAP_NEAREST;
Sampler mSampler_WRAP_LINEAR;
Sampler mSampler_WRAP_LINEAR_MIP;
public static Sampler CLAMP_NEAREST(RenderScript rs) {
if(rs.mSampler_CLAMP_NEAREST == null) {
Builder b = new Builder(rs);
b.setMin(Value.NEAREST);
b.setMag(Value.NEAREST);
b.setWrapS(Value.CLAMP);
b.setWrapT(Value.CLAMP);
rs.mSampler_CLAMP_NEAREST = b.create();
}
return rs.mSampler_CLAMP_NEAREST;
}
public static Sampler CLAMP_LINEAR(RenderScript rs) {
if(rs.mSampler_CLAMP_LINEAR == null) {
Builder b = new Builder(rs);
b.setMin(Value.LINEAR);
b.setMag(Value.LINEAR);
b.setWrapS(Value.CLAMP);
b.setWrapT(Value.CLAMP);
rs.mSampler_CLAMP_LINEAR = b.create();
}
return rs.mSampler_CLAMP_LINEAR;
}
public static Sampler CLAMP_LINEAR_MIP_LINEAR(RenderScript rs) {
if(rs.mSampler_CLAMP_LINEAR_MIP_LINEAR == null) {
Builder b = new Builder(rs);
b.setMin(Value.LINEAR_MIP_LINEAR);
b.setMag(Value.LINEAR_MIP_LINEAR);
b.setWrapS(Value.CLAMP);
b.setWrapT(Value.CLAMP);
rs.mSampler_CLAMP_LINEAR_MIP_LINEAR = b.create();
}
return rs.mSampler_CLAMP_LINEAR_MIP_LINEAR;
}
public static Sampler WRAP_NEAREST(RenderScript rs) {
if(rs.mSampler_WRAP_NEAREST == null) {
Builder b = new Builder(rs);
b.setMin(Value.NEAREST);
b.setMag(Value.NEAREST);
b.setWrapS(Value.WRAP);
b.setWrapT(Value.WRAP);
rs.mSampler_WRAP_NEAREST = b.create();
}
return rs.mSampler_WRAP_NEAREST;
}
public static Sampler WRAP_LINEAR(RenderScript rs) {
if(rs.mSampler_WRAP_LINEAR == null) {
Builder b = new Builder(rs);
b.setMin(Value.LINEAR);
b.setMag(Value.LINEAR);
b.setWrapS(Value.WRAP);
b.setWrapT(Value.WRAP);
rs.mSampler_WRAP_LINEAR = b.create();
}
return rs.mSampler_WRAP_LINEAR;
}
public static Sampler WRAP_LINEAR_MIP_LINEAR(RenderScript rs) {
if(rs.mSampler_WRAP_LINEAR_MIP_LINEAR == null) {
Builder b = new Builder(rs);
b.setMin(Value.LINEAR_MIP_LINEAR);
b.setMag(Value.LINEAR_MIP_LINEAR);
b.setWrapS(Value.WRAP);
b.setWrapT(Value.WRAP);
rs.mSampler_WRAP_LINEAR_MIP_LINEAR = b.create();
}
return rs.mSampler_WRAP_LINEAR_MIP_LINEAR;
}
public static class Builder {
RenderScript mRS;
Value mMin;
Value mMag;
Value mWrapS;
Value mWrapT;
Value mWrapR;
public Builder(RenderScript rs) {
mRS = rs;
mMin = Value.NEAREST;
mMag = Value.NEAREST;
mWrapS = Value.WRAP;
mWrapT = Value.WRAP;
mWrapR = Value.WRAP;
}
public void setMin(Value v) {
if (v == Value.NEAREST ||
v == Value.LINEAR ||
v == Value.LINEAR_MIP_LINEAR) {
mMin = v;
} else {
throw new IllegalArgumentException("Invalid value");
}
}
public void setMag(Value v) {
if (v == Value.NEAREST || v == Value.LINEAR) {
mMag = v;
} else {
throw new IllegalArgumentException("Invalid value");
}
}
public void setWrapS(Value v) {
if (v == Value.WRAP || v == Value.CLAMP) {
mWrapS = v;
} else {
throw new IllegalArgumentException("Invalid value");
}
}
public void setWrapT(Value v) {
if (v == Value.WRAP || v == Value.CLAMP) {
mWrapT = v;
} else {
throw new IllegalArgumentException("Invalid value");
}
}
public void setWrapR(Value v) {
if (v == Value.WRAP || v == Value.CLAMP) {
mWrapR = v;
} else {
throw new IllegalArgumentException("Invalid value");
}
}
static synchronized Sampler internalCreate(RenderScript rs, Builder b) {
rs.nSamplerBegin();
rs.nSamplerSet(0, b.mMin.mID);
rs.nSamplerSet(1, b.mMag.mID);
rs.nSamplerSet(2, b.mWrapS.mID);
rs.nSamplerSet(3, b.mWrapT.mID);
rs.nSamplerSet(4, b.mWrapR.mID);
int id = rs.nSamplerCreate();
return new Sampler(id, rs);
}
public Sampler create() {
mRS.validate();
return internalCreate(mRS, this);
}
}
}
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