Home | History | Annotate | Download | only in renderscript 
      1 /*
      2  * Copyright (C) 2008 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package android.renderscript;
     18 
     19 
     20 import java.io.IOException;
     21 import java.io.InputStream;
     22 
     23 import android.content.res.Resources;
     24 import android.os.Bundle;
     25 import android.util.Config;
     26 import android.util.Log;
     27 
     28 import android.graphics.Bitmap;
     29 import android.graphics.BitmapFactory;
     30 
     31 /**
     32  * @hide
     33  *
     34  **/
     35 public class Sampler extends BaseObj {
     36     public enum Value {
     37         NEAREST (0),
     38         LINEAR (1),
     39         LINEAR_MIP_LINEAR (2),
     40         WRAP (3),
     41         CLAMP (4);
     42 
     43         int mID;
     44         Value(int id) {
     45             mID = id;
     46         }
     47     }
     48 
     49     Sampler(int id, RenderScript rs) {
     50         super(rs);
     51         mID = id;
     52     }
     53 
     54     public static class Builder {
     55         RenderScript mRS;
     56         Value mMin;
     57         Value mMag;
     58         Value mWrapS;
     59         Value mWrapT;
     60         Value mWrapR;
     61 
     62         public Builder(RenderScript rs) {
     63             mRS = rs;
     64             mMin = Value.NEAREST;
     65             mMag = Value.NEAREST;
     66             mWrapS = Value.WRAP;
     67             mWrapT = Value.WRAP;
     68             mWrapR = Value.WRAP;
     69         }
     70 
     71         public void setMin(Value v) {
     72             if (v == Value.NEAREST ||
     73                 v == Value.LINEAR ||
     74                 v == Value.LINEAR_MIP_LINEAR) {
     75                 mMin = v;
     76             } else {
     77                 throw new IllegalArgumentException("Invalid value");
     78             }
     79         }
     80 
     81         public void setMag(Value v) {
     82             if (v == Value.NEAREST || v == Value.LINEAR) {
     83                 mMag = v;
     84             } else {
     85                 throw new IllegalArgumentException("Invalid value");
     86             }
     87         }
     88 
     89         public void setWrapS(Value v) {
     90             if (v == Value.WRAP || v == Value.CLAMP) {
     91                 mWrapS = v;
     92             } else {
     93                 throw new IllegalArgumentException("Invalid value");
     94             }
     95         }
     96 
     97         public void setWrapT(Value v) {
     98             if (v == Value.WRAP || v == Value.CLAMP) {
     99                 mWrapT = v;
    100             } else {
    101                 throw new IllegalArgumentException("Invalid value");
    102             }
    103         }
    104 
    105         public void setWrapR(Value v) {
    106             if (v == Value.WRAP || v == Value.CLAMP) {
    107                 mWrapR = v;
    108             } else {
    109                 throw new IllegalArgumentException("Invalid value");
    110             }
    111         }
    112 
    113         static synchronized Sampler internalCreate(RenderScript rs, Builder b) {
    114             rs.nSamplerBegin();
    115             rs.nSamplerSet(0, b.mMin.mID);
    116             rs.nSamplerSet(1, b.mMag.mID);
    117             rs.nSamplerSet(2, b.mWrapS.mID);
    118             rs.nSamplerSet(3, b.mWrapT.mID);
    119             rs.nSamplerSet(4, b.mWrapR.mID);
    120             int id = rs.nSamplerCreate();
    121             return new Sampler(id, rs);
    122         }
    123 
    124         public Sampler create() {
    125             mRS.validate();
    126             return internalCreate(mRS, this);
    127         }
    128     }
    129 
    130 }
    131 
    132