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      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 android.util.Config;
     21 import android.util.Log;
     22 
     23 
     24 /**
     25  * @hide
     26  *
     27  **/
     28 public class Program extends BaseObj {
     29     public static final int MAX_INPUT = 8;
     30     public static final int MAX_OUTPUT = 8;
     31     public static final int MAX_CONSTANT = 8;
     32     public static final int MAX_TEXTURE = 8;
     33 
     34     Element mInputs[];
     35     Element mOutputs[];
     36     Type mConstants[];
     37     int mTextureCount;
     38     String mShader;
     39 
     40     Program(int id, RenderScript rs) {
     41         super(rs);
     42         mID = id;
     43     }
     44 
     45     public void bindConstants(Allocation a, int slot) {
     46         mRS.nProgramBindConstants(mID, slot, a.mID);
     47     }
     48 
     49     public void bindTexture(Allocation va, int slot)
     50         throws IllegalArgumentException {
     51         mRS.validate();
     52         if((slot < 0) || (slot >= mTextureCount)) {
     53             throw new IllegalArgumentException("Slot ID out of range.");
     54         }
     55 
     56         mRS.nProgramBindTexture(mID, slot, va.mID);
     57     }
     58 
     59     public void bindSampler(Sampler vs, int slot)
     60         throws IllegalArgumentException {
     61         mRS.validate();
     62         if((slot < 0) || (slot >= mTextureCount)) {
     63             throw new IllegalArgumentException("Slot ID out of range.");
     64         }
     65 
     66         mRS.nProgramBindSampler(mID, slot, vs.mID);
     67     }
     68 
     69 
     70     public static class BaseProgramBuilder {
     71         RenderScript mRS;
     72         Element mInputs[];
     73         Element mOutputs[];
     74         Type mConstants[];
     75         Type mTextures[];
     76         int mInputCount;
     77         int mOutputCount;
     78         int mConstantCount;
     79         int mTextureCount;
     80         String mShader;
     81 
     82 
     83         protected BaseProgramBuilder(RenderScript rs) {
     84             mRS = rs;
     85             mInputs = new Element[MAX_INPUT];
     86             mOutputs = new Element[MAX_OUTPUT];
     87             mConstants = new Type[MAX_CONSTANT];
     88             mInputCount = 0;
     89             mOutputCount = 0;
     90             mConstantCount = 0;
     91             mTextureCount = 0;
     92         }
     93 
     94         public void setShader(String s) {
     95             mShader = s;
     96         }
     97 
     98         public void addInput(Element e) throws IllegalStateException {
     99             // Should check for consistant and non-conflicting names...
    100             if(mInputCount >= MAX_INPUT) {
    101                 throw new IllegalArgumentException("Max input count exceeded.");
    102             }
    103             mInputs[mInputCount++] = e;
    104         }
    105 
    106         public void addOutput(Element e) throws IllegalStateException {
    107             // Should check for consistant and non-conflicting names...
    108             if(mOutputCount >= MAX_OUTPUT) {
    109                 throw new IllegalArgumentException("Max output count exceeded.");
    110             }
    111             mOutputs[mOutputCount++] = e;
    112         }
    113 
    114         public int addConstant(Type t) throws IllegalStateException {
    115             // Should check for consistant and non-conflicting names...
    116             if(mConstantCount >= MAX_CONSTANT) {
    117                 throw new IllegalArgumentException("Max input count exceeded.");
    118             }
    119             mConstants[mConstantCount] = t;
    120             return mConstantCount++;
    121         }
    122 
    123         public void setTextureCount(int count) throws IllegalArgumentException {
    124             // Should check for consistant and non-conflicting names...
    125             if(count >= MAX_CONSTANT) {
    126                 throw new IllegalArgumentException("Max texture count exceeded.");
    127             }
    128             mTextureCount = count;
    129         }
    130 
    131         protected void initProgram(Program p) {
    132             p.mInputs = new Element[mInputCount];
    133             System.arraycopy(mInputs, 0, p.mInputs, 0, mInputCount);
    134             p.mOutputs = new Element[mOutputCount];
    135             System.arraycopy(mOutputs, 0, p.mOutputs, 0, mOutputCount);
    136             p.mConstants = new Type[mConstantCount];
    137             System.arraycopy(mConstants, 0, p.mConstants, 0, mConstantCount);
    138             p.mTextureCount = mTextureCount;
    139         }
    140     }
    141 
    142 }
    143 
    144 
    145