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      1 /*
      2  * Copyright (C) 2011 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 com.android.modelviewer;
     18 
     19 import java.io.Writer;
     20 
     21 import android.content.res.Resources;
     22 import android.renderscript.*;
     23 import android.renderscript.ProgramStore.DepthFunc;
     24 import android.util.Log;
     25 
     26 
     27 public class SimpleModelRS {
     28 
     29     public SimpleModelRS() {
     30     }
     31 
     32     public void init(RenderScriptGL rs, Resources res) {
     33         mRS = rs;
     34         mRes = res;
     35         initRS();
     36     }
     37 
     38     public void surfaceChanged() {
     39         mRS.getWidth();
     40         mRS.getHeight();
     41     }
     42 
     43     private Resources mRes;
     44     private RenderScriptGL mRS;
     45     private Sampler mSampler;
     46     private ProgramStore mPSBackground;
     47     private ProgramFragment mPFBackground;
     48     private ProgramVertex mPVBackground;
     49     private ProgramVertexFixedFunction.Constants mPVA;
     50 
     51     private Allocation mGridImage;
     52     private Allocation mAllocPV;
     53 
     54     private Font mItalic;
     55     private Allocation mTextAlloc;
     56 
     57     private ScriptField_MeshInfo mMeshes;
     58     private ScriptC_simplemodel mScript;
     59 
     60 
     61     public void onActionDown(float x, float y) {
     62         mScript.invoke_onActionDown(x, y);
     63     }
     64 
     65     public void onActionScale(float scale) {
     66         mScript.invoke_onActionScale(scale);
     67     }
     68 
     69     public void onActionMove(float x, float y) {
     70         mScript.invoke_onActionMove(x, y);
     71     }
     72 
     73     public void onPostureChanged(Matrix4f posture) {
     74         mScript.set_gPostureMatrix(posture);
     75     }
     76 
     77     private void initPFS() {
     78         ProgramStore.Builder b = new ProgramStore.Builder(mRS);
     79 
     80         b.setDepthFunc(ProgramStore.DepthFunc.LESS);
     81         b.setDitherEnabled(false);
     82         b.setDepthMaskEnabled(true);
     83         mPSBackground = b.create();
     84 
     85         mScript.set_gPFSBackground(mPSBackground);
     86     }
     87 
     88     private void initPF() {
     89         Sampler.Builder bs = new Sampler.Builder(mRS);
     90         bs.setMinification(Sampler.Value.LINEAR);
     91         bs.setMagnification(Sampler.Value.LINEAR);
     92         bs.setWrapS(Sampler.Value.CLAMP);
     93         bs.setWrapT(Sampler.Value.CLAMP);
     94         mSampler = bs.create();
     95 
     96         ProgramFragmentFixedFunction.Builder b = new ProgramFragmentFixedFunction.Builder(mRS);
     97         b.setTexture(ProgramFragmentFixedFunction.Builder.EnvMode.REPLACE,
     98                      ProgramFragmentFixedFunction.Builder.Format.RGBA, 0);
     99         mPFBackground = b.create();
    100         mPFBackground.bindSampler(mSampler, 0);
    101 
    102         mScript.set_gPFBackground(mPFBackground);
    103     }
    104 
    105     private void initPV() {
    106         ProgramVertexFixedFunction.Builder pvb = new ProgramVertexFixedFunction.Builder(mRS);
    107         mPVBackground = pvb.create();
    108 
    109         mPVA = new ProgramVertexFixedFunction.Constants(mRS);
    110         ((ProgramVertexFixedFunction)mPVBackground).bindConstants(mPVA);
    111 
    112         mScript.set_gPVBackground(mPVBackground);
    113     }
    114 
    115     private void loadImage() {
    116         mGridImage = Allocation.createFromBitmapResource(mRS, mRes, R.drawable.robot,
    117                                                          Allocation.MipmapControl.MIPMAP_ON_SYNC_TO_TEXTURE,
    118                                                          Allocation.USAGE_GRAPHICS_TEXTURE);
    119         mScript.set_gTGrid(mGridImage);
    120     }
    121 
    122     private void initTextAllocation(String fileName) {
    123         String allocString = "Displaying file: " + fileName;
    124         mTextAlloc = Allocation.createFromString(mRS, allocString, Allocation.USAGE_SCRIPT);
    125         mScript.set_gTextAlloc(mTextAlloc);
    126     }
    127 
    128     private void initMeshes(FileA3D model) {
    129         int numEntries = model.getIndexEntryCount();
    130         int numMeshes = 0;
    131         for (int i = 0; i < numEntries; i ++) {
    132             FileA3D.IndexEntry entry = model.getIndexEntry(i);
    133             if (entry != null && entry.getEntryType() == FileA3D.EntryType.MESH) {
    134                 numMeshes ++;
    135             }
    136         }
    137 
    138         if (numMeshes > 0) {
    139             mMeshes = new ScriptField_MeshInfo(mRS, numMeshes);
    140 
    141             for (int i = 0; i < numEntries; i ++) {
    142                 FileA3D.IndexEntry entry = model.getIndexEntry(i);
    143                 if (entry != null && entry.getEntryType() == FileA3D.EntryType.MESH) {
    144                     Mesh mesh = entry.getMesh();
    145                     mMeshes.set_mMesh(i, mesh, false);
    146                     mMeshes.set_mNumIndexSets(i, mesh.getPrimitiveCount(), false);
    147                 }
    148             }
    149             mMeshes.copyAll();
    150         } else {
    151             throw new RSRuntimeException("No valid meshes in file");
    152         }
    153 
    154         mScript.bind_gMeshes(mMeshes);
    155         mScript.invoke_updateMeshInfo();
    156     }
    157 
    158     public void loadA3DFile(String path) {
    159         FileA3D model = FileA3D.createFromFile(mRS, path);
    160         initMeshes(model);
    161         initTextAllocation(path);
    162     }
    163 
    164     private void initRS() {
    165 
    166         mScript = new ScriptC_simplemodel(mRS, mRes, R.raw.simplemodel);
    167 
    168         initPFS();
    169         initPF();
    170         initPV();
    171 
    172         loadImage();
    173 
    174         FileA3D model = FileA3D.createFromResource(mRS, mRes, R.raw.robot);
    175         initMeshes(model);
    176 
    177         mItalic = Font.create(mRS, mRes, "serif", Font.Style.ITALIC, 8);
    178         mScript.set_gItalic(mItalic);
    179 
    180         initTextAllocation("R.raw.robot");
    181 
    182         mRS.bindRootScript(mScript);
    183     }
    184 }
    185 
    186 
    187 
    188