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/*
* Copyright (C) 2011 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 com.android.scenegraph;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.Writer;
import java.lang.Math;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import com.android.scenegraph.Camera;
import com.android.scenegraph.MatrixTransform;
import com.android.scenegraph.Scene;
import com.android.testapp.R;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.AsyncTask;
import android.renderscript.*;
import android.renderscript.Allocation.MipmapControl;
import android.renderscript.Mesh;
import android.renderscript.RenderScriptGL;
import android.renderscript.Type.Builder;
import android.util.Log;
import android.view.SurfaceHolder;
/**
* @hide
*/
public class SceneManager extends SceneGraphBase {
HashMap<String, Allocation> mAllocationMap;
ScriptC_render mRenderLoop;
ScriptC mCameraScript;
ScriptC mLightScript;
ScriptC mObjectParamsScript;
ScriptC mFragmentParamsScript;
ScriptC mVertexParamsScript;
ScriptC mCullScript;
ScriptC_transform mTransformScript;
ScriptC_export mExportScript;
RenderScriptGL mRS;
Resources mRes;
Mesh mQuad;
int mWidth;
int mHeight;
Scene mActiveScene;
private static SceneManager sSceneManager;
private Allocation mDefault2D;
private Allocation mDefaultCube;
private static Allocation getDefault(boolean isCube) {
final int dimension = 4;
final int bytesPerPixel = 4;
int arraySize = dimension * dimension * bytesPerPixel;
RenderScriptGL rs = sSceneManager.mRS;
Type.Builder b = new Type.Builder(rs, Element.RGBA_8888(rs));
b.setX(dimension).setY(dimension);
if (isCube) {
b.setFaces(true);
arraySize *= 6;
}
Type bitmapType = b.create();
Allocation.MipmapControl mip = Allocation.MipmapControl.MIPMAP_ON_SYNC_TO_TEXTURE;
int usage = Allocation.USAGE_GRAPHICS_TEXTURE;
Allocation defaultImage = Allocation.createTyped(rs, bitmapType, mip, usage);
byte imageData[] = new byte[arraySize];
defaultImage.copyFrom(imageData);
return defaultImage;
}
static Allocation getDefaultTex2D() {
if (sSceneManager == null) {
return null;
}
return sSceneManager.mDefault2D;
}
static Allocation getDefaultTexCube() {
if (sSceneManager == null) {
return null;
}
return sSceneManager.mDefaultCube;
}
public static boolean isSDCardPath(String path) {
int sdCardIndex = path.indexOf("sdcard/");
// We are looking for /sdcard/ or sdcard/
if (sdCardIndex == 0 || sdCardIndex == 1) {
return true;
}
sdCardIndex = path.indexOf("mnt/sdcard/");
if (sdCardIndex == 0 || sdCardIndex == 1) {
return true;
}
return false;
}
static Bitmap loadBitmap(String name, Resources res) {
InputStream is = null;
boolean loadFromSD = isSDCardPath(name);
try {
if (!loadFromSD) {
is = res.getAssets().open(name);
} else {
File f = new File(name);
is = new BufferedInputStream(new FileInputStream(f));
}
} catch (IOException e) {
Log.e("ImageLoaderTask", " Message: " + e.getMessage());
return null;
}
Bitmap b = BitmapFactory.decodeStream(is);
try {
is.close();
} catch (IOException e) {
Log.e("ImageLoaderTask", " Message: " + e.getMessage());
}
return b;
}
public static Allocation loadCubemap(String name, RenderScriptGL rs, Resources res) {
Bitmap b = loadBitmap(name, res);
if (b == null) {
return null;
}
return Allocation.createCubemapFromBitmap(rs, b,
MipmapControl.MIPMAP_ON_SYNC_TO_TEXTURE,
Allocation.USAGE_GRAPHICS_TEXTURE);
}
public static Allocation loadTexture2D(String name, RenderScriptGL rs, Resources res) {
Bitmap b = loadBitmap(name, res);
if (b == null) {
return null;
}
return Allocation.createFromBitmap(rs, b,
Allocation.MipmapControl.MIPMAP_ON_SYNC_TO_TEXTURE,
Allocation.USAGE_GRAPHICS_TEXTURE);
}
public static ProgramStore BLEND_ADD_DEPTH_NONE(RenderScript rs) {
ProgramStore.Builder builder = new ProgramStore.Builder(rs);
builder.setDepthFunc(ProgramStore.DepthFunc.ALWAYS);
builder.setBlendFunc(ProgramStore.BlendSrcFunc.ONE, ProgramStore.BlendDstFunc.ONE);
builder.setDitherEnabled(false);
builder.setDepthMaskEnabled(false);
return builder.create();
}
static Allocation getStringAsAllocation(RenderScript rs, String str) {
if (str == null) {
return null;
}
if (str.length() == 0) {
return null;
}
byte[] allocArray = null;
byte[] nullChar = new byte[1];
nullChar[0] = 0;
try {
allocArray = str.getBytes("UTF-8");
Allocation alloc = Allocation.createSized(rs, Element.U8(rs),
allocArray.length + 1,
Allocation.USAGE_SCRIPT);
alloc.copy1DRangeFrom(0, allocArray.length, allocArray);
alloc.copy1DRangeFrom(allocArray.length, 1, nullChar);
return alloc;
}
catch (Exception e) {
throw new RSRuntimeException("Could not convert string to utf-8.");
}
}
static Allocation getCachedAlloc(String str) {
if (sSceneManager == null) {
throw new RuntimeException("Scene manager not initialized");
}
return sSceneManager.mAllocationMap.get(str);
}
static void cacheAlloc(String str, Allocation alloc) {
if (sSceneManager == null) {
throw new RuntimeException("Scene manager not initialized");
}
sSceneManager.mAllocationMap.put(str, alloc);
}
public static class SceneLoadedCallback implements Runnable {
public Scene mLoadedScene;
public String mName;
public void run() {
}
}
public Scene getActiveScene() {
return mActiveScene;
}
public void setActiveScene(Scene s) {
mActiveScene = s;
// Do some sanity checking
if (mActiveScene.getCameras().size() == 0) {
Matrix4f camPos = new Matrix4f();
camPos.translate(0, 0, 10);
MatrixTransform cameraTransform = new MatrixTransform();
cameraTransform.setName("_DefaultCameraTransform");
cameraTransform.setMatrix(camPos);
mActiveScene.appendTransform(cameraTransform);
Camera cam = new Camera();
cam.setName("_DefaultCamera");
cam.setTransform(cameraTransform);
mActiveScene.appendCamera(cam);
}
}
static RenderScriptGL getRS() {
if (sSceneManager == null) {
return null;
}
return sSceneManager.mRS;
}
static Resources getRes() {
if (sSceneManager == null) {
return null;
}
return sSceneManager.mRes;
}
public static SceneManager getInstance() {
if (sSceneManager == null) {
sSceneManager = new SceneManager();
}
return sSceneManager;
}
protected SceneManager() {
}
public void loadModel(String name, SceneLoadedCallback cb) {
ColladaScene scene = new ColladaScene(name, cb);
scene.init(mRS, mRes);
}
public Mesh getScreenAlignedQuad() {
if (mQuad != null) {
return mQuad;
}
Mesh.TriangleMeshBuilder tmb = new Mesh.TriangleMeshBuilder(mRS,
3, Mesh.TriangleMeshBuilder.TEXTURE_0);
tmb.setTexture(0.0f, 1.0f);
tmb.addVertex(-1.0f, 1.0f, 1.0f);
tmb.setTexture(0.0f, 0.0f);
tmb.addVertex(-1.0f, -1.0f, 1.0f);
tmb.setTexture(1.0f, 0.0f);
tmb.addVertex(1.0f, -1.0f, 1.0f);
tmb.setTexture(1.0f, 1.0f);
tmb.addVertex(1.0f, 1.0f, 1.0f);
tmb.addTriangle(0, 1, 2);
tmb.addTriangle(2, 3, 0);
mQuad = tmb.create(true);
return mQuad;
}
public Renderable getRenderableQuad(String name, RenderState state) {
Renderable quad = new Renderable();
quad.setTransform(new MatrixTransform());
quad.setMesh(getScreenAlignedQuad());
quad.setName(name);
quad.setRenderState(state);
quad.setCullType(1);
return quad;
}
public void initRS(RenderScriptGL rs, Resources res, int w, int h) {
mRS = rs;
mRes = res;
mAllocationMap = new HashMap<String, Allocation>();
mQuad = null;
mDefault2D = getDefault(false);
mDefaultCube = getDefault(true);
mExportScript = new ScriptC_export(rs, res, R.raw.export);
mTransformScript = new ScriptC_transform(rs, res, R.raw.transform);
mTransformScript.set_gTransformScript(mTransformScript);
mCameraScript = new ScriptC_camera(rs, res, R.raw.camera);
mLightScript = new ScriptC_light(rs, res, R.raw.light);
mObjectParamsScript = new ScriptC_object_params(rs, res, R.raw.object_params);
mFragmentParamsScript = new ScriptC_object_params(rs, res, R.raw.fragment_params);
mVertexParamsScript = new ScriptC_object_params(rs, res, R.raw.vertex_params);
mCullScript = new ScriptC_cull(rs, res, R.raw.cull);
mRenderLoop = new ScriptC_render(rs, res, R.raw.render);
mRenderLoop.set_gTransformScript(mTransformScript);
mRenderLoop.set_gCameraScript(mCameraScript);
mRenderLoop.set_gLightScript(mLightScript);
mRenderLoop.set_gObjectParamsScript(mObjectParamsScript);
mRenderLoop.set_gFragmentParamsScript(mFragmentParamsScript);
mRenderLoop.set_gVertexParamsScript(mVertexParamsScript);
mRenderLoop.set_gCullScript(mCullScript);
mRenderLoop.set_gPFSBackground(ProgramStore.BLEND_NONE_DEPTH_TEST(mRS));
}
public ScriptC getRenderLoop() {
return mRenderLoop;
}
}
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