我正在尝试在API 16及更高版本的设备上使用Android Renderscript支持库，遵循步骤described here。到目前为止事情并不顺利。
我的Renderscript代码如下所示。
#pragma version(1)
#pragma rs java_package_name(com.xxx.renderscript.test)
#include "rs_time.rsh"
rs_script flipScript;
rs_allocation gIn;
rs_allocation gOut;
int width;
int height;
int direction = 0;
void root(uchar4 *v_out, const void *usrData, uint32_t x, uint32_t y) {
if(direction == 0) { // flip horizontally
const uchar4 *element = rsGetElementAt(gIn, width - x, y);
float4 color = rsUnpackColor8888(*element);
float4 output = {color.r, color.g, color.b};
*v_out = rsPackColorTo8888(output);
}
else if(direction == 1) { // flip vertically
const uchar4 *element = rsGetElementAt(gIn, x, height - y);
float4 color = rsUnpackColor8888(*element);
float4 output = {color.r, color.g, color.b};
*v_out = rsPackColorTo8888(output);
}
else if(direction == 2) { // rotate left
const uchar4 *element = rsGetElementAt(gIn, width - y, x);
float4 color = rsUnpackColor8888(*element);
float4 output = {color.r, color.g, color.b};
*v_out = rsPackColorTo8888(output);
}
else if(direction == 3) { // rotate right
const uchar4 *element = rsGetElementAt(gIn, y, height - x);
float4 color = rsUnpackColor8888(*element);
float4 output = {color.r, color.g, color.b};
*v_out = rsPackColorTo8888(output);
}
}
void flip(int testIdx) {
int64_t t0, t1;
int64_t t;
t0 = rsUptimeNanos();
rsForEach(flipScript, gIn, gOut);
t1 = rsUptimeNanos();
t = t1 - t0;
rsDebug(" flip: timer on RS side: ", t);
}
首先我将Android SDK工具升级到22.3，将我的SDK平台工具升级到19.如果我单击ADT / Help / About ADT / Installation Details，我看到所有组件都已升级到22.3.0，开发人员除外工具，仍然是21.0.1：
Android DDMS 22.3.0.v201310242005-887826 com.android.ide.eclipse.ddms.feature.group The Android Open Source Project
Android Developer Tools 21.0.1.201212060302 com.android.ide.eclipse.adt.package.product null
Android Development Tools 22.3.0.v201310242005-887826 com.android.ide.eclipse.adt.feature.group The Android Open Source Project
Android Hierarchy Viewer 22.3.0.v201310242005-887826 com.android.ide.eclipse.hierarchyviewer.feature.group The Android Open Source Project
Android Native Development Tools 22.3.0.v201310242005-887826 com.android.ide.eclipse.ndk.feature.group The Android Open Source Project
Android Traceview 22.3.0.v201310242005-887826 com.android.ide.eclipse.traceview.feature.group The Android Open Source Project
Tracer for OpenGL ES 22.3.0.v201310242005-887826 com.android.ide.eclipse.gldebugger.feature.group The Android Open Source Project
然后我按照上述步骤中的建议编辑了我的“project.properties”文件。我也做了修改，加入了Tim Murray的评论。
proguard.config=C:/android/adt-bundle-windows-x86_64/sdk/tools/proguard/proguard-android.txt:proguard-project.txt
# Project target.
target=android-18
renderscript.target=18
renderscript.support.mode=true
#sdk.buildtools=19.0.0
在我的Java代码中，我确保导入了支持库中的包。下面列出的是完整的Java文件：
package com.xxx.renderscript.test;
import android.support.v8.renderscript.*;
//import android.renderscript.RenderScript;
//import android.renderscript.Allocation;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.SystemClock;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.Bitmap.Config;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.util.Log;
import android.view.View;
import android.widget.ImageView;
public class RenderScriptTestActivity extends Activity {
private final String mLog = this.getClass().getName();
private static final int TESTS_PER_GROUP = 12;
private Bitmap mBitmapIn;
private Bitmap mBitmapOut;
private ImageView mDisplayView;
private RenderScript mRS = null;
private ScriptC_flip mScriptFlip = null;
private Allocation mInPixelsAllocation = null;
private Allocation mOutPixelsAllocation = null;
//use aSyncTask so we display the image while rendering it.
private ImageRenderTask mImageRenderTask = null;
private boolean isRsBenchDone = false;
@Override
protected void onCreate(Bundle savedInstanceState) {
Log.i(mLog, "onCreate() ");
super.onCreate(savedInstanceState);
setContentView(R.layout.layout_rs);
mBitmapIn = loadBitmap(R.drawable.city);
mBitmapOut = loadBitmap(R.drawable.city);
mDisplayView = (ImageView) findViewById(R.id.rs_display);
mDisplayView.setImageBitmap(mBitmapOut);
// RS instances
mRS = RenderScript.create(this);
mScriptFlip = new ScriptC_flip(mRS, getResources(), R.raw.flip);
mInPixelsAllocation = Allocation.createFromBitmap(mRS, mBitmapIn,
Allocation.MipmapControl.MIPMAP_NONE,
Allocation.USAGE_SCRIPT);
mOutPixelsAllocation = Allocation.createFromBitmap(mRS, mBitmapOut,
Allocation.MipmapControl.MIPMAP_NONE,
Allocation.USAGE_SCRIPT);
}
@Override
protected void onResume() {
Log.i(mLog, "onResume ");
super.onResume();
// for thread & display control
isRsBenchDone = true;
}
// initialize flip.rs
private void setupRS() {
Log.i(mLog, "Initializing flip.rs...");
mScriptFlip.set_flipScript(mScriptFlip);
mScriptFlip.set_width(mBitmapIn.getWidth());
mScriptFlip.set_height(mBitmapIn.getHeight());
mScriptFlip.set_gIn(mInPixelsAllocation);
mScriptFlip.set_gOut(mOutPixelsAllocation);
}
@Override
protected void onStop() {
Log.i(mLog, "onStop ");
super.onStop();
}
private void resetRS() {
mBitmapIn = null;
mBitmapOut = null;
mRS = null;
mScriptFlip = null;
mInPixelsAllocation = null;
mOutPixelsAllocation = null;
}
private Bitmap loadBitmap(int resource) {
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inPreferredConfig = Bitmap.Config.ARGB_8888;
Bitmap b_temp = BitmapFactory.decodeResource(getResources(), resource, options);
int w = b_temp.getWidth();
int h = b_temp.getHeight();
Config cfg = b_temp.getConfig();
Bitmap b_keep = Bitmap.createBitmap(w, h, cfg);
Canvas c = new Canvas(b_keep);
c.drawBitmap(b_temp, 0, 0, null);
b_temp.recycle();
if (true) {
Log.d(mLog, "loadBitmap(): width = " + w + " loadBitmap(): height = " + h);
}
return b_keep;
}
// press the button to invoke this function
public void benchmark(View v) {
if (false == isRsBenchDone) { //do nothing if it's not done yet
return;
}
if (mImageRenderTask != null) {
if (mImageRenderTask.getStatus() == AsyncTask.Status.RUNNING) {
return;
}
if (mImageRenderTask.getStatus() == AsyncTask.Status.PENDING) {
mImageRenderTask.execute();
return;
}
}
// instantiate AsyncTask if not already existed & running
Log.i(mLog, "User pressed Start");
SystemClock.sleep(2000);
isRsBenchDone = false;
setupRS();
mImageRenderTask = new ImageRenderTask();
mImageRenderTask.execute();
}
// user presses this button when the test is done and all results have been
// recorded.
public void pressedRsExit(View view) {
Log.i(mLog, "User pressed Exit");
if (isRsBenchDone) { // only exit when we are finished
resetRS();
RenderScriptTestActivity.this.finish();
}
}
/**************************************************************************
**
* Since the display must be updated in the main UI thread, and the main
* UI thread cannot be put to sleep, we have to use an AsyncTask to update
* the display after the image is rendered, and then sleep some time
* so that the tester can view the images being displayed.
**
**************************************************************************/
private class ImageRenderTask extends AsyncTask<Void, Drawable, Void> {
// runs in the UI (main) thread in correspondence to the AsyncTask
// updating the drawable.
protected void onProgressUpdate(Drawable... values) {
Log.i(mLog, "onProgressUpdate...");
super.onProgressUpdate(values);
Drawable draw_tmp = values[0];
mDisplayView.setImageDrawable(draw_tmp);
mDisplayView.invalidate();
}
// runs on the UI (main) thread after the AsyncTask is finished
@Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
// reset the flag to exit
isRsBenchDone = true;
}
@Override
protected Void doInBackground(Void... params) {
int group_id;
int flip_way;
//------------------------------------------------------------
// group 4: flip horizontally
//------------------------------------------------------------
flip_way = 0;
mScriptFlip.set_direction(flip_way);
Log.i(mLog, "starting horizontal flipping ... ... ... ...");
// measure group 4
group_id = 4; // used as a switch for render script
measureRS(group_id);
Log.i(mLog, " horizontal done");
// sleep cannot happen in the main UI thread
SystemClock.sleep(2500);
updateDisplay();
SystemClock.sleep(2500);
//------------------------------------------------------------
// group 5: flip vertically
//------------------------------------------------------------
mScriptFlip.set_gIn(mInPixelsAllocation);
flip_way = 1;
mScriptFlip.set_direction(flip_way);
Log.i(mLog, "starting vertical flipping ... ... ... ...");
// measure group 5
group_id = 5; // used as a switch for render script
measureRS(group_id);
Log.i(mLog, " vertical done");
// sleep cannot happen in the main UI thread
SystemClock.sleep(2500);
updateDisplay();
SystemClock.sleep(2500);
return null;
}
// run and measure Render Script instances
private void measureRS(int group_id) {
if ((0==group_id) || (1 == group_id) || (2 == group_id)) {
//other stuff
}
if (3 == group_id) {
//other stuff
}
if ((4==group_id) || (5 == group_id)) {
for (int i = 0; i < TESTS_PER_GROUP; i++) {
mScriptFlip.invoke_flip(i);
}
}
}
// update the displayed image
private void updateDisplay() {
Log.i(mLog, "updateDisplay...");
//mOutPixelsAllocation.copyTo(mBitmapIn); // this to verify the display.
mOutPixelsAllocation.copyTo(mBitmapOut);
Bitmap b_temp = Bitmap.createBitmap(mBitmapOut.getWidth(), mBitmapOut.getHeight(), Bitmap.Config.ARGB_8888);
Canvas c_temp = new Canvas(b_temp);
c_temp.drawBitmap(mBitmapOut, 0, 0, null);
Drawable d_temp = new BitmapDrawable(getResources(), b_temp);
publishProgress(d_temp);
}
}
}
最后，在我的项目属性中，我将外部JAR添加到Java Build Path中：
renderscript-v8.jar - C:\android\adt-bundle-windows-x86_64\sdk\build-tools\19.0.0\renderscript\lib
构建的代码没有任何问题。然后我在几台设备上测试了它。以下是测试结果。
Nexus 7（2012版，升级到Android 4.4） 代码运行完成而没有崩溃。但是，在第一次调用Renderscript之后，更新ImageView会导致显示空白。显然输出位图没有正确写入。
华为Mate（Android 4.1.2） 从ADT加载后代码崩溃。下面是一系列错误消息（帖子主体限制为30k字符，因此我无法发布所有内容）：
W/dalvikvm(2246): Refusing to reopen boot DEX '/system/framework/hwframework.jar'
E/RenderScript_jni(2246): No GC methods
D/dalvikvm(2246): Trying to load lib /data/data/com.xxx.renderscript.test/lib/libRSSupport.so 0x41726918
D/dalvikvm(2246): Added shared lib /data/data/com.xxx.renderscript.test/lib/libRSSupport.so 0x41726918
D/dalvikvm(2246): No JNI_OnLoad found in /data/data/com.xxx.renderscript.test/lib/libRSSupport.so 0x41726918, skipping init
D/dalvikvm(2246): Trying to load lib /data/data/com.xxx.renderscript.test/lib/librsjni.so 0x41726918
D/dalvikvm(2246): Added shared lib /data/data/com.xxx.renderscript.test/lib/librsjni.so 0x41726918
V/RenderScript_jni(2246): RS compat mode
V/RenderScript(2246): 0x5bc7d008 Launching thread(s), CPUs 3
E/RenderScript(2246): Unable to open shared library (/data/data/com.xxx.renderscript.test//lib/librs.flip.so): Cannot load library: reloc_library[1306]: 132 cannot locate '_Z13rsUptimeNanosv'...
E/RenderScript(2246): Unable to open system shared library (/system/lib/librs.flip.so): (null)
D/AndroidRuntime(2246): Shutting down VM
W/dalvikvm(2246): threadid=1: thread exiting with uncaught exception (group=0x40f122a0)
E/AndroidRuntime(2246): FATAL EXCEPTION: main
E/AndroidRuntime(2246): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.xxx.renderscript.test/com.xxx.renderscript.test.RenderScriptTestActivity}: android.support.v8.renderscript.RSRuntimeException: Loading of ScriptC script failed.
Sony Xperia Z Ultra C6802（Android 4.2.2） 从ADT加载后代码崩溃，并显示以下错误消息（再次选择以适应30k字符限制）：
D/AndroidRuntime(3498): CheckJNI is OFF
D/dalvikvm(3498): Trying to load lib libjavacore.so 0x0
D/dalvikvm(3498): Added shared lib libjavacore.so 0x0
D/dalvikvm(3498): Trying to load lib libnativehelper.so 0x0
D/dalvikvm(3498): Added shared lib libnativehelper.so 0x0
I/ActivityManager(903): Start proc com.svox.pico for broadcast com.svox.pico/.VoiceDataInstallerReceiver: pid=3513 uid=10085 gids={50085, 1015, 1028}
I/ActivityManager(903): No longer want com.mobisystems.office:search (pid 2686): empty #34
I/ActivityManager(903): Start proc com.sonymobile.enterprise.service for broadcast com.sonymobile.enterprise.service/.Receiver: pid=3539 uid=1000 gids={41000, 3003, 1015, 1028, 3002, 3001, 3007}
D/AndroidRuntime(3498): Calling main entry com.android.commands.am.Am
D/dalvikvm(3498): Note: class Landroid/app/ActivityManagerNative; has 157 unimplemented (abstract) methods
I/ActivityManager(903): START u0 {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 cmp=com.xxx.renderscript.test/.RenderScriptTestActivity} from pid 3498
D/AndroidRuntime(3498): Shutting down VM
D/jdwp(3498): Got wake-up signal, bailing out of select
D/dalvikvm(3498): Debugger has detached; object registry had 1 entries
D/dalvikvm(3557): Late-enabling CheckJNI
I/ActivityManager(903): Start proc com.xxx.renderscript.test for activity com.xxx.renderscript.test/.RenderScriptTestActivity: pid=3557 uid=10088 gids={50088, 1028}
D/dalvikvm(3557): Debugger has detached; object registry had 1 entries
I/Icing.InternalIcingCorporaProvider(2583): Updating corpora: A: com.xxx.renderscript.test, C: MAYBE
E/.AppDataSearchProvider(2583): Could not connect to AppDataSearchClient to register corpora.
W/Icing.InternalIcingCorporaProvider(2583): Corpora registration failed
I/com.xxx.renderscript.test.RenderScriptTestActivity(3557): onCreate()
E/.AppDataSearchProvider(2583): Could not connect to AppDataSearchClient for notifyTableChanged
W/Icing.InternalIcingCorporaProvider(2583): Application table change notification failed.
D/dalvikvm(2856): GC_CONCURRENT freed 187K, 73% free 3028K/11084K, paused 3ms+4ms, total 20ms
D/ConnectionNotify(3116): queue add:2
D/AudioHardwareALSAExt(329): getParameters() supported_effect
D/[APP_SERVICE](3116): package com.xxx.renderscript.test installed
D/[APP_SERVICE](3116): add package com.xxx.renderscript.test
I/ActivityManager(903): Start proc com.UCMobile for broadcast com.UCMobile/.receivers.SysReceiver: pid=3587 uid=10207 gids={50207, 3003, 1015, 1028}
I/dalvikvm(3587): Turning on JNI app bug workarounds for target SDK version 8...
D/dalvikvm(3410): GC_CONCURRENT freed 511K, 71% free 3273K/11084K, paused 2ms+1ms, total 20ms
D/dalvikvm(3410): WAIT_FOR_CONCURRENT_GC blocked 5ms
E/RenderScript_jni(3557): No GC methods
D/dalvikvm(3557): Trying to load lib /data/app-lib/com.xxx.renderscript.test-1/libRSSupport.so 0x418243f8
D/dalvikvm(3557): Added shared lib /data/app-lib/com.xxx.renderscript.test-1/libRSSupport.so 0x418243f8
D/dalvikvm(3557): No JNI_OnLoad found in /data/app-lib/com.xxx.renderscript.test-1/libRSSupport.so 0x418243f8, skipping init
D/dalvikvm(3557): Trying to load lib /data/app-lib/com.xxx.renderscript.test-1/librsjni.so 0x418243f8
D/dalvikvm(3557): Added shared lib /data/app-lib/com.xxx.renderscript.test-1/librsjni.so 0x418243f8
V/RenderScript_jni(3557): RS compat mode
V/RenderScript(3557): 0x72b26978 Launching thread(s), CPUs 4
E/RenderScript(3557): Unable to open shared library (/data/data/com.xxx.renderscript.test//lib/librs.flip.so): Cannot load library: soinfo_relocate(linker.cpp:975): cannot locate symbol "_Z13rsUptimeNanosv" referenced by "librs.flip.so"...
E/RenderScript(3557): Unable to open system shared library (/system/lib/librs.flip.so): (null)
D/AndroidRuntime(3557): Shutting down VM
W/dalvikvm(3557): threadid=1: thread exiting with uncaught exception (group=0x4154aae0)
E/AndroidRuntime(3557): FATAL EXCEPTION: main
E/AndroidRuntime(3557): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.xxx.renderscript.test/com.xxx.renderscript.test.RenderScriptTestActivity}: android.support.v8.renderscript.RSRuntimeException: Loading of ScriptC script failed.
E/AndroidRuntime(3557): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2224)
E/AndroidRuntime(3557): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2274)
E/AndroidRuntime(3557): at android.app.ActivityThread.access$600(ActivityThread.java:150)
E/AndroidRuntime(3557): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1276)
E/AndroidRuntime(3557): at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime(3557): at android.os.Looper.loop(Looper.java:213)
E/AndroidRuntime(3557): at android.app.ActivityThread.main(ActivityThread.java:5153)
E/AndroidRuntime(3557): at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime(3557): at java.lang.reflect.Method.invoke(Method.java:511)
E/AndroidRuntime(3557): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:797)
E/AndroidRuntime(3557): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:564)
E/AndroidRuntime(3557): at dalvik.system.NativeStart.main(Native Method)
E/AndroidRuntime(3557): Caused by: android.support.v8.renderscript.RSRuntimeException: Loading of ScriptC script failed.
E/AndroidRuntime(3557): at android.support.v8.renderscript.ScriptC.<init>(ScriptC.java:69)
E/AndroidRuntime(3557): at com.xxx.renderscript.test.ScriptC_flip.<init>(ScriptC_flip.java:41)
E/AndroidRuntime(3557): at com.xxx.renderscript.test.RenderScriptTestActivity.onCreate(RenderScriptTestActivity.java:53)
E/AndroidRuntime(3557): at android.app.Activity.performCreate(Activity.java:5104)
E/AndroidRuntime(3557): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
E/AndroidRuntime(3557): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2188)
E/AndroidRuntime(3557): ... 11 more
W/ActivityManager(903): Force finishing activity com.xxx.renderscript.test/.RenderScriptTestActivity
如果有人可以查看问题，我是否会感激，无论是我的代码中的错误还是Android SDK问题。欢迎提出意见/建议，谢谢！
[编辑] 我从我的代码中删除了不相关的内容，并在此发布了完整的代码，希望有人可以重复我的问题，并找到解决方案。我还添加了更多的测试结果。
答案 0 :(得分：2)
好。我不确定是否还需要它，以及它是否能解决您的问题，但我建议您尝试使用 Gradle 1.5.0的Android插件
必须在项目的build.gradle中设置（不在app build.gradle中）
// imageData = NSData(contentsOfURL: imageUrl)
使用 buildToolsVersion 22.0.1或23.0.2 或最新版本。