summaryrefslogtreecommitdiffstats
path: root/src/com/android/camera/imageprocessor/FrameProcessor.java
blob: a85636bc1c57cf716cd194e34a575ed6c89955f0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
/*
Copyright (c) 2016, The Linux Foundation. All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above
      copyright notice, this list of conditions and the following
      disclaimer in the documentation and/or other materials provided
      with the distribution.
    * Neither the name of The Linux Foundation nor the names of its
      contributors may be used to endorse or promote products derived
      from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.android.camera.imageprocessor;

import android.app.Activity;
import android.graphics.ImageFormat;
import android.hardware.camera2.CameraCharacteristics;
import android.media.Image;
import android.media.ImageReader;
import android.os.Handler;
import android.os.HandlerThread;
import android.renderscript.Allocation;
import android.renderscript.Element;
import android.renderscript.RenderScript;
import android.renderscript.Type;
import android.util.Log;
import android.util.Size;
import android.view.Surface;
import android.widget.Toast;

import com.android.camera.CaptureModule;
import com.android.camera.SettingsManager;
import com.android.camera.imageprocessor.filter.BeautificationFilter;
import com.android.camera.imageprocessor.filter.ImageFilter;
import com.android.camera.imageprocessor.filter.TrackingFocusFrameListener;
import com.android.camera.ui.RotateTextToast;

import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Semaphore;
import org.codeaurora.snapcam.R;

public class FrameProcessor {

    private ImageReader mInputImageReader;
    private Allocation mInputAllocation;
    private Allocation mProcessAllocation;
    private Allocation mOutputAllocation;
    private Allocation mVideoOutputAllocation;

    private HandlerThread mProcessingThread;
    private Handler mProcessingHandler;
    private HandlerThread mOutingThread;
    private Handler mOutingHandler;
    private HandlerThread mListeningThread;
    private Handler mListeningHandler;

    private ProcessingTask mTask;
    private ListeningTask mListeningTask;
    private RenderScript mRs;
    private Activity mActivity;
    ScriptC_YuvToRgb mRsYuvToRGB;
    ScriptC_rotator mRsRotator;
    private Size mSize;
    private Object mAllocationLock = new Object();
    private boolean mIsAllocationEverUsed;
    private ArrayList<ImageFilter> mPreviewFilters;
    private ArrayList<ImageFilter> mFinalFilters;
    private Surface mSurfaceAsItIs;
    private Surface mVideoSurfaceAsItIs;
    private boolean mIsActive = false;
    public static final int FILTER_NONE = 0;
    public static final int FILTER_MAKEUP = 1;
    public static final int LISTENER_TRACKING_FOCUS = 2;
    private CaptureModule mModule;
    private boolean mIsVideoOn = false;

    public FrameProcessor(Activity activity, CaptureModule module) {
        mActivity = activity;
        mModule = module;
        mPreviewFilters = new ArrayList<ImageFilter>();
        mFinalFilters = new ArrayList<ImageFilter>();
    }

    public void init(Size previewDim) {
        mIsActive = true;
        mSize = previewDim;
        synchronized (mAllocationLock) {
            mRs = RenderScript.create(mActivity);
            mRsYuvToRGB = new ScriptC_YuvToRgb(mRs);
            mRsRotator = new ScriptC_rotator(mRs);
            mInputImageReader = ImageReader.newInstance(mSize.getWidth(), mSize.getHeight(), ImageFormat.YUV_420_888, 8);

            Type.Builder rgbTypeBuilder = new Type.Builder(mRs, Element.RGBA_8888(mRs));
            rgbTypeBuilder.setX(mSize.getHeight());
            rgbTypeBuilder.setY(mSize.getWidth());
            mOutputAllocation = Allocation.createTyped(mRs, rgbTypeBuilder.create(),
                    Allocation.USAGE_SCRIPT | Allocation.USAGE_IO_OUTPUT);

            if (mProcessingThread == null) {
                mProcessingThread = new HandlerThread("FrameProcessor");
                mProcessingThread.start();
                mProcessingHandler = new Handler(mProcessingThread.getLooper());
            }

            if (mOutingThread == null) {
                mOutingThread = new HandlerThread("FrameOutingThread");
                mOutingThread.start();
                mOutingHandler = new Handler(mOutingThread.getLooper());
            }

            if (mListeningThread == null) {
                mListeningThread = new HandlerThread("FrameListeningThread");
                mListeningThread.start();
                mListeningHandler = new Handler(mListeningThread.getLooper());
            }

            mListeningTask = new ListeningTask();
            mTask = new ProcessingTask();
            mInputImageReader.setOnImageAvailableListener(mTask, mProcessingHandler);
            mIsAllocationEverUsed = false;
        }
    }

    private void createAllocation(int width, int height, int stridePad) {
        Type.Builder yuvTypeBuilder = new Type.Builder(mRs, Element.YUV(mRs));
        yuvTypeBuilder.setX(width);
        yuvTypeBuilder.setY(height);
        yuvTypeBuilder.setYuvFormat(ImageFormat.NV21);
        mInputAllocation = Allocation.createTyped(mRs, yuvTypeBuilder.create(), Allocation.USAGE_SCRIPT);
        Type.Builder nv21TypeBuilder = new Type.Builder(mRs, Element.U8(mRs));
        nv21TypeBuilder.setX(width * height * 3 / 2);
        mProcessAllocation = Allocation.createTyped(mRs, nv21TypeBuilder.create(), Allocation.USAGE_SCRIPT);
        mRsRotator.set_gIn(mInputAllocation);
        mRsRotator.set_gOut(mProcessAllocation);
        mRsRotator.set_width(width);
        mRsRotator.set_height(height);
        mRsRotator.set_pad(stridePad);
        int degree = 90;
        if(mModule.getMainCameraCharacteristics() != null) {
            degree = mModule.getMainCameraCharacteristics().
                    get(CameraCharacteristics.SENSOR_ORIENTATION);
        }
        mRsRotator.set_degree(degree);
        mRsYuvToRGB.set_gIn(mProcessAllocation);
        mRsYuvToRGB.set_width(height);
        mRsYuvToRGB.set_height(width);
    }

    public ArrayList<ImageFilter> getFrameFilters() {
        return mFinalFilters;
    }

    private void cleanFilterSet() {
        if (mPreviewFilters != null) {
            for (ImageFilter filter : mPreviewFilters) {
                filter.deinit();
            }
        }
        if (mFinalFilters != null) {
            for (ImageFilter filter : mFinalFilters) {
                filter.deinit();
            }
        }
        mPreviewFilters = new ArrayList<ImageFilter>();
        mFinalFilters = new ArrayList<ImageFilter>();
    }

    public void onOpen(ArrayList<Integer> filterIds) {
        cleanFilterSet();
        if (filterIds != null) {
            for (Integer i : filterIds) {
                addFilter(i.intValue());
            }
        }
    }

    private void addFilter(int filterId) {
        ImageFilter filter = null;
        if (filterId == FILTER_MAKEUP) {
            filter = new BeautificationFilter(mModule);
        } else if (filterId == LISTENER_TRACKING_FOCUS) {
            filter = new TrackingFocusFrameListener(mModule);
        }

        if (filter != null && filter.isSupported()) {
            mPreviewFilters.add(filter);
            if (!filter.isFrameListener()) {
                mFinalFilters.add(filter);
            }
        }

    }

    public void onClose() {
        mIsActive = false;
        synchronized (mAllocationLock) {
            if (mIsAllocationEverUsed) {
                if (mInputAllocation != null) {
                    mInputAllocation.destroy();
                }
                if (mOutputAllocation != null) {
                    mOutputAllocation.destroy();
                }
                if (mProcessAllocation != null) {
                    mProcessAllocation.destroy();
                }
                if (mVideoOutputAllocation != null) {
                    mVideoOutputAllocation.destroy();
                }
            }
            if (mRs != null) {
                mRs.destroy();
            }
            mRs = null;
            mProcessAllocation = null;
            mOutputAllocation = null;
            mInputAllocation = null;
            mVideoOutputAllocation = null;
        }
        if (mProcessingThread != null) {
            mProcessingThread.quitSafely();
            try {
                mProcessingThread.join();
                mProcessingThread = null;
                mProcessingHandler = null;
            } catch (InterruptedException e) {
            }
        }
        if (mOutingThread != null) {
            mOutingThread.quitSafely();
            try {
                mOutingThread.join();
                mOutingThread = null;
                mOutingHandler = null;
            } catch (InterruptedException e) {
            }
        }
        if (mListeningThread != null) {
            mListeningThread.quitSafely();
            try {
                mListeningThread.join();
                mListeningThread = null;
                mListeningHandler = null;
            } catch (InterruptedException e) {
            }
        }
        for (ImageFilter filter : mPreviewFilters) {
            filter.deinit();
        }
        for (ImageFilter filter : mFinalFilters) {
            filter.deinit();
        }
    }

    private Surface getReaderSurface() {
        synchronized (mAllocationLock) {
            if (mInputImageReader == null) {
                return null;
            }
            return mInputImageReader.getSurface();
        }
    }

    public List<Surface> getInputSurfaces() {
        List<Surface> surfaces = new ArrayList<Surface>();
        if (mPreviewFilters.size() == 0 && mFinalFilters.size() == 0) {
            surfaces.add(mSurfaceAsItIs);
            if (mIsVideoOn) {
                surfaces.add(mVideoSurfaceAsItIs);
            }
        } else if (mFinalFilters.size() == 0) {
            surfaces.add(mSurfaceAsItIs);
            if (mIsVideoOn) {
                surfaces.add(mVideoSurfaceAsItIs);
            }
            surfaces.add(getReaderSurface());
        } else {
            surfaces.add(getReaderSurface());
        }
        return surfaces;
    }

    public boolean isFrameFilterEnabled() {
        if (mFinalFilters.size() == 0) {
            return false;
        }
        return true;
    }

    public void setOutputSurface(Surface surface) {
        mSurfaceAsItIs = surface;
        if (mFinalFilters.size() != 0) {
            mOutputAllocation.setSurface(surface);
        }
    }

    public void setVideoOutputSurface(Surface surface) {
        if (surface == null) {
            synchronized (mAllocationLock) {
                if (mVideoOutputAllocation != null) {
                    mVideoOutputAllocation.destroy();
                }
                mVideoOutputAllocation = null;
            }
            mIsVideoOn = false;
            return;
        }
        mVideoSurfaceAsItIs = surface;
        mIsVideoOn = true;
        if (mFinalFilters.size() != 0) {
            synchronized (mAllocationLock) {
                if (mVideoOutputAllocation == null) {
                    Type.Builder rgbTypeBuilder = new Type.Builder(mRs, Element.RGBA_8888(mRs));
                    rgbTypeBuilder.setX(mSize.getHeight());
                    rgbTypeBuilder.setY(mSize.getWidth());
                    mVideoOutputAllocation = Allocation.createTyped(mRs, rgbTypeBuilder.create(),
                            Allocation.USAGE_SCRIPT | Allocation.USAGE_IO_OUTPUT);
                }
                mVideoOutputAllocation.setSurface(surface);
            }
        }
    }

    class ProcessingTask implements Runnable, ImageReader.OnImageAvailableListener {
        byte[] yvuBytes = null;
        int ySize;
        int stride;
        int height;
        int width;

        public ProcessingTask() {
        }

        @Override
        public void onImageAvailable(ImageReader reader) {
            synchronized (mAllocationLock) {
                if (mOutputAllocation == null) {
                    return;
                }
                try {
                    Image image = reader.acquireLatestImage();
                    if (image == null) {
                        return;
                    }
                    if (!mIsActive) {
                        image.close();
                        return;
                    }
                    mIsAllocationEverUsed = true;
                    ByteBuffer bY = image.getPlanes()[0].getBuffer();
                    ByteBuffer bVU = image.getPlanes()[2].getBuffer();
                    if (yvuBytes == null || width != mSize.getWidth() || height != mSize.getHeight()) {
                        stride = image.getPlanes()[0].getRowStride();
                        width = mSize.getWidth();
                        height = mSize.getHeight();
                        ySize = stride * mSize.getHeight();
                        yvuBytes = new byte[ySize * 3 / 2];
                    }
                    boolean needToFeedSurface = false;
                    //Start processing yvu buf
                    for (ImageFilter filter : mPreviewFilters) {
                        if (filter.isFrameListener()) {
                            if (mListeningTask.setParam(filter, bY, bVU, mSize.getWidth(), mSize.getHeight(), stride)) {
                                mListeningHandler.post(mListeningTask);
                            }
                        } else {
                            filter.init(mSize.getWidth(), mSize.getHeight(), stride, stride);
                            filter.addImage(bY, bVU, 0, new Boolean(true));
                            needToFeedSurface = true;
                        }
                        bY.rewind();
                        bVU.rewind();
                    }
                    //End processing yvu buf
                    if (needToFeedSurface) {
                        bY.get(yvuBytes, 0, bY.remaining());
                        bVU.get(yvuBytes, ySize, bVU.remaining());
                        mOutingHandler.post(this);
                    }
                    image.close();
                } catch (IllegalStateException e) {
                }
            }
        }

        @Override
        public void run() {
            synchronized (mAllocationLock) {
                if (!mIsActive) {
                    return;
                }
                if (mInputAllocation == null) {
                    createAllocation(stride, height, stride - width);
                }
                mInputAllocation.copyFrom(yvuBytes);
                mRsRotator.forEach_rotate90andMerge(mInputAllocation);
                mRsYuvToRGB.forEach_nv21ToRgb(mOutputAllocation);
                mOutputAllocation.ioSend();
                if (mVideoOutputAllocation != null) {
                    mVideoOutputAllocation.copyFrom(mOutputAllocation);
                    mVideoOutputAllocation.ioSend();
                }
            }
        }
    }

    class ListeningTask implements Runnable {

        ImageFilter mFilter;
        ByteBuffer mBY = null, mBVU = null;
        int mWidth, mHeight, mStride;
        int bYSize, bVUSize;
        Semaphore mMutureLock = new Semaphore(1);

        public boolean setParam(ImageFilter filter, ByteBuffer bY, ByteBuffer bVU, int width, int height, int stride) {
            if (!mIsActive) {
                return false;
            }
            if (!mMutureLock.tryAcquire()) {
                return false;
            }
            mFilter = filter;
            if (mBY == null || bYSize != bY.remaining()) {
                bYSize = bY.remaining();
                mBY = ByteBuffer.allocateDirect(bYSize);
            }
            if (mBVU == null || bVUSize != bVU.remaining()) {
                bVUSize = bVU.remaining();
                mBVU = ByteBuffer.allocateDirect(bVUSize);
            }
            mBY.rewind();
            mBVU.rewind();
            mBY.put(bY);
            mBVU.put(bVU);
            mWidth = width;
            mHeight = height;
            mStride = stride;
            mMutureLock.release();
            return true;
        }

        @Override
        public void run() {
            try {
                if (!mIsActive) {
                    return;
                }
                mMutureLock.acquire();
                mBY.rewind();
                mBVU.rewind();
                mFilter.init(mWidth, mHeight, mStride, mStride);
                mFilter.addImage(mBY, mBVU, 0, new Boolean(true));
                mMutureLock.release();
            } catch (InterruptedException e) {
            }
        }
    }
}