android_hardware_camera2_legacy_LegacyCameraDevice.cpp revision a9bc3559109836efe7479a3279713bd58810b153 
1/*
2 * Copyright (C) 2014 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#define LOG_TAG "Legacy-CameraDevice-JNI"
18// #define LOG_NDEBUG 0
19#include <utils/Log.h>
20#include <utils/Errors.h>
21#include <utils/Trace.h>
22#include <camera/CameraUtils.h>
23
24#include "jni.h"
25#include "JNIHelp.h"
26#include "android_runtime/AndroidRuntime.h"
27#include "android_runtime/android_view_Surface.h"
28#include "android_runtime/android_graphics_SurfaceTexture.h"
29
30#include <gui/Surface.h>
31#include <gui/IGraphicBufferProducer.h>
32#include <ui/GraphicBuffer.h>
33#include <system/window.h>
34#include <hardware/camera3.h>
35#include <system/camera_metadata.h>
36
37#include <stdint.h>
38#include <inttypes.h>
39
40using namespace android;
41
42// fully-qualified class name
43#define CAMERA_DEVICE_CLASS_NAME "android/hardware/camera2/legacy/LegacyCameraDevice"
44#define CAMERA_DEVICE_BUFFER_SLACK  3
45#define DONT_CARE 0
46
47#define ARRAY_SIZE(a) (sizeof(a)/sizeof(*(a)))
48
49#define ALIGN(x, mask) ( ((x) + (mask) - 1) & ~((mask) - 1) )
50
51/**
52 * Convert from RGB 888 to Y'CbCr using the conversion specified in ITU-R BT.601 for
53 * digital RGB with K_b = 0.114, and K_r = 0.299.
54 */
55static void rgbToYuv420(uint8_t* rgbBuf, int32_t width, int32_t height, uint8_t* yPlane,
56        uint8_t* uPlane, uint8_t* vPlane, size_t chromaStep, size_t yStride, size_t chromaStride) {
57    uint8_t R, G, B;
58    size_t index = 0;
59
60    int32_t cStrideDiff = chromaStride - width;
61
62    for (int32_t j = 0; j < height; j++) {
63        for (int32_t i = 0; i < width; i++) {
64            R = rgbBuf[index++];
65            G = rgbBuf[index++];
66            B = rgbBuf[index++];
67            *(yPlane + i) = ((66 * R + 129 * G +  25 * B + 128) >> 8) +  16;
68
69            if (j % 2 == 0 && i % 2 == 0){
70                *uPlane = (( -38 * R -  74 * G + 112 * B + 128) >> 8) + 128;
71                *vPlane = (( 112 * R -  94 * G -  18 * B + 128) >> 8) + 128;
72                uPlane += chromaStep;
73                vPlane += chromaStep;
74            }
75            // Skip alpha
76            index++;
77        }
78        yPlane += yStride;
79        if (j % 2 == 0) {
80            uPlane += cStrideDiff;
81            vPlane += cStrideDiff;
82        }
83    }
84}
85
86static void rgbToYuv420(uint8_t* rgbBuf, int32_t width, int32_t height, android_ycbcr* ycbcr) {
87    size_t cStep = ycbcr->chroma_step;
88    size_t cStride = ycbcr->cstride;
89    size_t yStride = ycbcr->ystride;
90    rgbToYuv420(rgbBuf, width, height, reinterpret_cast<uint8_t*>(ycbcr->y),
91            reinterpret_cast<uint8_t*>(ycbcr->cb), reinterpret_cast<uint8_t*>(ycbcr->cr),
92            cStep, yStride, cStride);
93}
94
95static status_t configureSurface(const sp<ANativeWindow>& anw,
96                                 int32_t width,
97                                 int32_t height,
98                                 int32_t pixelFmt,
99                                 int32_t maxBufferSlack) {
100    status_t err = NO_ERROR;
101    err = native_window_set_buffers_dimensions(anw.get(), width, height);
102    if (err != NO_ERROR) {
103        ALOGE("%s: Failed to set native window buffer dimensions, error %s (%d).", __FUNCTION__,
104                strerror(-err), err);
105        return err;
106    }
107
108    err = native_window_set_buffers_format(anw.get(), pixelFmt);
109    if (err != NO_ERROR) {
110        ALOGE("%s: Failed to set native window buffer format, error %s (%d).", __FUNCTION__,
111                strerror(-err), err);
112        return err;
113    }
114
115    err = native_window_set_usage(anw.get(), GRALLOC_USAGE_SW_WRITE_OFTEN);
116    if (err != NO_ERROR) {
117        ALOGE("%s: Failed to set native window usage flag, error %s (%d).", __FUNCTION__,
118                strerror(-err), err);
119        return err;
120    }
121
122    int minUndequeuedBuffers;
123    err = anw.get()->query(anw.get(),
124            NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS,
125            &minUndequeuedBuffers);
126    if (err != NO_ERROR) {
127        ALOGE("%s: Failed to get native window min undequeued buffers, error %s (%d).",
128                __FUNCTION__, strerror(-err), err);
129        return err;
130    }
131
132    ALOGV("%s: Setting buffer count to %d, size to (%dx%d), fmt (0x%x)", __FUNCTION__,
133          maxBufferSlack + 1 + minUndequeuedBuffers,
134          width, height, pixelFmt);
135    err = native_window_set_buffer_count(anw.get(), maxBufferSlack + 1 + minUndequeuedBuffers);
136    if (err != NO_ERROR) {
137        ALOGE("%s: Failed to set native window buffer count, error %s (%d).", __FUNCTION__,
138                strerror(-err), err);
139        return err;
140    }
141    return NO_ERROR;
142}
143
144/**
145 * Produce a frame in the given surface.
146 *
147 * Args:
148 *    anw - a surface to produce a frame in.
149 *    pixelBuffer - image buffer to generate a frame from.
150 *    width - width of the pixelBuffer in pixels.
151 *    height - height of the pixelBuffer in pixels.
152 *    pixelFmt - format of the pixelBuffer, one of:
153 *               HAL_PIXEL_FORMAT_YCrCb_420_SP,
154 *               HAL_PIXEL_FORMAT_YCbCr_420_888,
155 *               HAL_PIXEL_FORMAT_BLOB
156 *    bufSize - the size of the pixelBuffer in bytes.
157 */
158static status_t produceFrame(const sp<ANativeWindow>& anw,
159                             uint8_t* pixelBuffer,
160                             int32_t width, // Width of the pixelBuffer
161                             int32_t height, // Height of the pixelBuffer
162                             int32_t pixelFmt, // Format of the pixelBuffer
163                             int32_t bufSize) {
164    ATRACE_CALL();
165    status_t err = NO_ERROR;
166    ANativeWindowBuffer* anb;
167    ALOGV("%s: Dequeue buffer from %p %dx%d (fmt=%x, size=%x)",
168            __FUNCTION__, anw.get(), width, height, pixelFmt, bufSize);
169
170    if (anw == 0) {
171        ALOGE("%s: anw must not be NULL", __FUNCTION__);
172        return BAD_VALUE;
173    } else if (pixelBuffer == NULL) {
174        ALOGE("%s: pixelBuffer must not be NULL", __FUNCTION__);
175        return BAD_VALUE;
176    } else if (width < 0) {
177        ALOGE("%s: width must be non-negative", __FUNCTION__);
178        return BAD_VALUE;
179    } else if (height < 0) {
180        ALOGE("%s: height must be non-negative", __FUNCTION__);
181        return BAD_VALUE;
182    } else if (bufSize < 0) {
183        ALOGE("%s: bufSize must be non-negative", __FUNCTION__);
184        return BAD_VALUE;
185    }
186
187    if (width < 0 || height < 0 || bufSize < 0) {
188        ALOGE("%s: Illegal argument, negative dimension passed to produceFrame", __FUNCTION__);
189        return BAD_VALUE;
190    }
191
192    // TODO: Switch to using Surface::lock and Surface::unlockAndPost
193    err = native_window_dequeue_buffer_and_wait(anw.get(), &anb);
194    if (err != NO_ERROR) return err;
195
196    // TODO: check anb is large enough to store the results
197
198    sp<GraphicBuffer> buf(new GraphicBuffer(anb, /*keepOwnership*/false));
199
200    switch(pixelFmt) {
201        case HAL_PIXEL_FORMAT_YCrCb_420_SP: {
202            if (bufSize < width * height * 4) {
203                ALOGE("%s: PixelBuffer size %" PRId32 " to small for given dimensions",
204                        __FUNCTION__, bufSize);
205                return BAD_VALUE;
206            }
207            uint8_t* img = NULL;
208            ALOGV("%s: Lock buffer from %p for write", __FUNCTION__, anw.get());
209            err = buf->lock(GRALLOC_USAGE_SW_WRITE_OFTEN, (void**)(&img));
210            if (err != NO_ERROR) return err;
211
212            uint8_t* yPlane = img;
213            uint8_t* uPlane = img + height * width;
214            uint8_t* vPlane = uPlane + 1;
215            size_t chromaStep = 2;
216            size_t yStride = width;
217            size_t chromaStride = width;
218
219            rgbToYuv420(pixelBuffer, width, height, yPlane,
220                    uPlane, vPlane, chromaStep, yStride, chromaStride);
221            break;
222        }
223        case HAL_PIXEL_FORMAT_YV12: {
224            if (bufSize < width * height * 4) {
225                ALOGE("%s: PixelBuffer size %" PRId32 " to small for given dimensions",
226                        __FUNCTION__, bufSize);
227                return BAD_VALUE;
228            }
229
230            if ((width & 1) || (height & 1)) {
231                ALOGE("%s: Dimens %dx%d are not divisible by 2.", __FUNCTION__, width, height);
232                return BAD_VALUE;
233            }
234
235            uint8_t* img = NULL;
236            ALOGV("%s: Lock buffer from %p for write", __FUNCTION__, anw.get());
237            err = buf->lock(GRALLOC_USAGE_SW_WRITE_OFTEN, (void**)(&img));
238            if (err != NO_ERROR) {
239                ALOGE("%s: Error %s (%d) while locking gralloc buffer for write.", __FUNCTION__,
240                        strerror(-err), err);
241                return err;
242            }
243
244            uint32_t stride = buf->getStride();
245            LOG_ALWAYS_FATAL_IF(stride % 16, "Stride is not 16 pixel aligned %d", stride);
246
247            uint32_t cStride = ALIGN(stride / 2, 16);
248            size_t chromaStep = 1;
249
250            uint8_t* yPlane = img;
251            uint8_t* crPlane = img + static_cast<uint32_t>(height) * stride;
252            uint8_t* cbPlane = crPlane + cStride * static_cast<uint32_t>(height) / 2;
253
254            rgbToYuv420(pixelBuffer, width, height, yPlane,
255                    crPlane, cbPlane, chromaStep, stride, cStride);
256            break;
257        }
258        case HAL_PIXEL_FORMAT_YCbCr_420_888: {
259            // Software writes with YCbCr_420_888 format are unsupported
260            // by the gralloc module for now
261            if (bufSize < width * height * 4) {
262                ALOGE("%s: PixelBuffer size %" PRId32 " to small for given dimensions",
263                        __FUNCTION__, bufSize);
264                return BAD_VALUE;
265            }
266            android_ycbcr ycbcr = android_ycbcr();
267            ALOGV("%s: Lock buffer from %p for write", __FUNCTION__, anw.get());
268
269            err = buf->lockYCbCr(GRALLOC_USAGE_SW_WRITE_OFTEN, &ycbcr);
270            if (err != NO_ERROR) {
271                ALOGE("%s: Failed to lock ycbcr buffer, error %s (%d).", __FUNCTION__,
272                        strerror(-err), err);
273                return err;
274            }
275            rgbToYuv420(pixelBuffer, width, height, &ycbcr);
276            break;
277        }
278        case HAL_PIXEL_FORMAT_BLOB: {
279            if (bufSize != width || height != 1) {
280                ALOGE("%s: Incorrect pixelBuffer size: %" PRId32, __FUNCTION__, bufSize);
281                return BAD_VALUE;
282            }
283            int8_t* img = NULL;
284
285            ALOGV("%s: Lock buffer from %p for write", __FUNCTION__, anw.get());
286            err = buf->lock(GRALLOC_USAGE_SW_WRITE_OFTEN, (void**)(&img));
287            if (err != NO_ERROR) {
288                ALOGE("%s: Failed to lock buffer, error %s (%d).", __FUNCTION__, strerror(-err),
289                        err);
290                return err;
291            }
292            struct camera3_jpeg_blob footer = {
293                jpeg_blob_id: CAMERA3_JPEG_BLOB_ID,
294                jpeg_size: (uint32_t)width
295            };
296            memcpy(img, pixelBuffer, width);
297            memcpy(img + anb->width - sizeof(footer), &footer, sizeof(footer));
298            break;
299        }
300        default: {
301            ALOGE("%s: Invalid pixel format in produceFrame: %x", __FUNCTION__, pixelFmt);
302            return BAD_VALUE;
303        }
304    }
305
306    ALOGV("%s: Unlock buffer from %p", __FUNCTION__, anw.get());
307    err = buf->unlock();
308    if (err != NO_ERROR) {
309        ALOGE("%s: Failed to unlock buffer, error %s (%d).", __FUNCTION__, strerror(-err), err);
310        return err;
311    }
312
313    ALOGV("%s: Queue buffer to %p", __FUNCTION__, anw.get());
314    err = anw->queueBuffer(anw.get(), buf->getNativeBuffer(), /*fenceFd*/-1);
315    if (err != NO_ERROR) {
316        ALOGE("%s: Failed to queue buffer, error %s (%d).", __FUNCTION__, strerror(-err), err);
317        return err;
318    }
319    return NO_ERROR;
320}
321
322static sp<ANativeWindow> getNativeWindow(JNIEnv* env, jobject surface) {
323    sp<ANativeWindow> anw;
324    if (surface) {
325        anw = android_view_Surface_getNativeWindow(env, surface);
326        if (env->ExceptionCheck()) {
327            return NULL;
328        }
329    } else {
330        jniThrowNullPointerException(env, "surface");
331        return NULL;
332    }
333    if (anw == NULL) {
334        jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException",
335                "Surface had no valid native window.");
336        return NULL;
337    }
338    return anw;
339}
340
341static sp<ANativeWindow> getNativeWindowFromTexture(JNIEnv* env, jobject surfaceTexture) {
342    sp<ANativeWindow> anw;
343    if (surfaceTexture) {
344        anw = android_SurfaceTexture_getNativeWindow(env, surfaceTexture);
345        if (env->ExceptionCheck()) {
346            return NULL;
347        }
348    } else {
349        jniThrowNullPointerException(env, "surfaceTexture");
350        return NULL;
351    }
352    if (anw == NULL) {
353        jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException",
354                "SurfaceTexture had no valid native window.");
355        return NULL;
356    }
357    return anw;
358}
359
360static sp<Surface> getSurface(JNIEnv* env, jobject surface) {
361    sp<Surface> s;
362    if (surface) {
363        s = android_view_Surface_getSurface(env, surface);
364        if (env->ExceptionCheck()) {
365            return NULL;
366        }
367    } else {
368        jniThrowNullPointerException(env, "surface");
369        return NULL;
370    }
371    if (s == NULL) {
372        jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException",
373                "Surface had no valid native Surface.");
374        return NULL;
375    }
376    return s;
377}
378
379extern "C" {
380
381static jint LegacyCameraDevice_nativeDetectSurfaceType(JNIEnv* env, jobject thiz, jobject surface) {
382    ALOGV("nativeDetectSurfaceType");
383    sp<ANativeWindow> anw;
384    if ((anw = getNativeWindow(env, surface)) == NULL) {
385        ALOGE("%s: Could not retrieve native window from surface.", __FUNCTION__);
386        return BAD_VALUE;
387    }
388    int32_t fmt = 0;
389    status_t err = anw->query(anw.get(), NATIVE_WINDOW_FORMAT, &fmt);
390    if(err != NO_ERROR) {
391        ALOGE("%s: Error while querying surface pixel format %s (%d).", __FUNCTION__, strerror(-err),
392                err);
393        return err;
394    }
395    return fmt;
396}
397
398static jint LegacyCameraDevice_nativeDetectSurfaceDimens(JNIEnv* env, jobject thiz,
399          jobject surface, jintArray dimens) {
400    ALOGV("nativeGetSurfaceDimens");
401
402    if (dimens == NULL) {
403        ALOGE("%s: Null dimens argument passed to nativeDetectSurfaceDimens", __FUNCTION__);
404        return BAD_VALUE;
405    }
406
407    if (env->GetArrayLength(dimens) < 2) {
408        ALOGE("%s: Invalid length of dimens argument in nativeDetectSurfaceDimens", __FUNCTION__);
409        return BAD_VALUE;
410    }
411
412    sp<ANativeWindow> anw;
413    if ((anw = getNativeWindow(env, surface)) == NULL) {
414        ALOGE("%s: Could not retrieve native window from surface.", __FUNCTION__);
415        return BAD_VALUE;
416    }
417    int32_t dimenBuf[2];
418    status_t err = anw->query(anw.get(), NATIVE_WINDOW_WIDTH, dimenBuf);
419    if(err != NO_ERROR) {
420        ALOGE("%s: Error while querying surface width %s (%d).", __FUNCTION__, strerror(-err),
421                err);
422        return err;
423    }
424    err = anw->query(anw.get(), NATIVE_WINDOW_HEIGHT, dimenBuf + 1);
425    if(err != NO_ERROR) {
426        ALOGE("%s: Error while querying surface height %s (%d).", __FUNCTION__, strerror(-err),
427                err);
428        return err;
429    }
430    env->SetIntArrayRegion(dimens, /*start*/0, /*length*/ARRAY_SIZE(dimenBuf), dimenBuf);
431    return NO_ERROR;
432}
433
434static jint LegacyCameraDevice_nativeDetectTextureDimens(JNIEnv* env, jobject thiz,
435        jobject surfaceTexture, jintArray dimens) {
436    ALOGV("nativeDetectTextureDimens");
437    sp<ANativeWindow> anw;
438    if ((anw = getNativeWindowFromTexture(env, surfaceTexture)) == NULL) {
439        ALOGE("%s: Could not retrieve native window from SurfaceTexture.", __FUNCTION__);
440        return BAD_VALUE;
441    }
442
443    int32_t dimenBuf[2];
444    status_t err = anw->query(anw.get(), NATIVE_WINDOW_WIDTH, dimenBuf);
445    if(err != NO_ERROR) {
446        ALOGE("%s: Error while querying SurfaceTexture width %s (%d)", __FUNCTION__,
447                strerror(-err), err);
448        return err;
449    }
450
451    err = anw->query(anw.get(), NATIVE_WINDOW_HEIGHT, dimenBuf + 1);
452    if(err != NO_ERROR) {
453        ALOGE("%s: Error while querying SurfaceTexture height %s (%d)", __FUNCTION__,
454                strerror(-err), err);
455        return err;
456    }
457
458    env->SetIntArrayRegion(dimens, /*start*/0, /*length*/ARRAY_SIZE(dimenBuf), dimenBuf);
459    if (env->ExceptionCheck()) {
460        return BAD_VALUE;
461    }
462    return NO_ERROR;
463}
464
465static jint LegacyCameraDevice_nativeConfigureSurface(JNIEnv* env, jobject thiz, jobject surface,
466        jint width, jint height, jint pixelFormat) {
467    ALOGV("nativeConfigureSurface");
468    sp<ANativeWindow> anw;
469    if ((anw = getNativeWindow(env, surface)) == NULL) {
470        ALOGE("%s: Could not retrieve native window from surface.", __FUNCTION__);
471        return BAD_VALUE;
472    }
473    status_t err = configureSurface(anw, width, height, pixelFormat, CAMERA_DEVICE_BUFFER_SLACK);
474    if (err != NO_ERROR) {
475        ALOGE("%s: Error while configuring surface %s (%d).", __FUNCTION__, strerror(-err), err);
476        return err;
477    }
478    return NO_ERROR;
479}
480
481static jint LegacyCameraDevice_nativeProduceFrame(JNIEnv* env, jobject thiz, jobject surface,
482        jbyteArray pixelBuffer, jint width, jint height, jint pixelFormat) {
483    ALOGV("nativeProduceFrame");
484    sp<ANativeWindow> anw;
485
486    if ((anw = getNativeWindow(env, surface)) == NULL) {
487        ALOGE("%s: Could not retrieve native window from surface.", __FUNCTION__);
488        return BAD_VALUE;
489    }
490
491    if (pixelBuffer == NULL) {
492        jniThrowNullPointerException(env, "pixelBuffer");
493        return DONT_CARE;
494    }
495
496    int32_t bufSize = static_cast<int32_t>(env->GetArrayLength(pixelBuffer));
497    jbyte* pixels = env->GetByteArrayElements(pixelBuffer, /*is_copy*/NULL);
498
499    if (pixels == NULL) {
500        jniThrowNullPointerException(env, "pixels");
501        return DONT_CARE;
502    }
503
504    status_t err = produceFrame(anw, reinterpret_cast<uint8_t*>(pixels), width, height,
505            pixelFormat, bufSize);
506    env->ReleaseByteArrayElements(pixelBuffer, pixels, JNI_ABORT);
507
508    if (err != NO_ERROR) {
509        ALOGE("%s: Error while producing frame %s (%d).", __FUNCTION__, strerror(-err), err);
510        return err;
511    }
512    return NO_ERROR;
513}
514
515static jint LegacyCameraDevice_nativeSetSurfaceFormat(JNIEnv* env, jobject thiz, jobject surface,
516        jint pixelFormat) {
517    ALOGV("nativeSetSurfaceType");
518    sp<ANativeWindow> anw;
519    if ((anw = getNativeWindow(env, surface)) == NULL) {
520        ALOGE("%s: Could not retrieve native window from surface.", __FUNCTION__);
521        return BAD_VALUE;
522    }
523    status_t err = native_window_set_buffers_format(anw.get(), pixelFormat);
524    if (err != NO_ERROR) {
525        ALOGE("%s: Error while setting surface format %s (%d).", __FUNCTION__, strerror(-err), err);
526        return err;
527    }
528    return NO_ERROR;
529}
530
531static jint LegacyCameraDevice_nativeSetSurfaceDimens(JNIEnv* env, jobject thiz, jobject surface,
532        jint width, jint height) {
533    ALOGV("nativeSetSurfaceDimens");
534    sp<ANativeWindow> anw;
535    if ((anw = getNativeWindow(env, surface)) == NULL) {
536        ALOGE("%s: Could not retrieve native window from surface.", __FUNCTION__);
537        return BAD_VALUE;
538    }
539    status_t err = native_window_set_buffers_dimensions(anw.get(), width, height);
540    if (err != NO_ERROR) {
541        ALOGE("%s: Error while setting surface dimens %s (%d).", __FUNCTION__, strerror(-err), err);
542        return err;
543    }
544
545    // WAR - Set user dimensions also to avoid incorrect scaling after TextureView orientation
546    // change.
547    err = native_window_set_buffers_user_dimensions(anw.get(), width, height);
548    if (err != NO_ERROR) {
549        ALOGE("%s: Error while setting surface user dimens %s (%d).", __FUNCTION__, strerror(-err),
550                err);
551        return err;
552    }
553    return NO_ERROR;
554}
555
556static jlong LegacyCameraDevice_nativeGetSurfaceId(JNIEnv* env, jobject thiz, jobject surface) {
557    ALOGV("nativeGetSurfaceId");
558    sp<Surface> s;
559    if ((s = getSurface(env, surface)) == NULL) {
560        ALOGE("%s: Could not retrieve native Surface from surface.", __FUNCTION__);
561        return 0;
562    }
563    sp<IGraphicBufferProducer> gbp = s->getIGraphicBufferProducer();
564    if (gbp == NULL) {
565        ALOGE("%s: Could not retrieve IGraphicBufferProducer from surface.", __FUNCTION__);
566        return 0;
567    }
568    sp<IBinder> b = gbp->asBinder();
569    if (b == NULL) {
570        ALOGE("%s: Could not retrieve IBinder from surface.", __FUNCTION__);
571        return 0;
572    }
573    /*
574     * FIXME: Use better unique ID for surfaces than native IBinder pointer.  Fix also in the camera
575     * service (CameraDeviceClient.h).
576     */
577    return reinterpret_cast<jlong>(b.get());
578}
579
580static jint LegacyCameraDevice_nativeSetSurfaceOrientation(JNIEnv* env, jobject thiz,
581        jobject surface, jint facing, jint orientation) {
582    ALOGV("nativeSetSurfaceOrientation");
583    sp<ANativeWindow> anw;
584    if ((anw = getNativeWindow(env, surface)) == NULL) {
585        ALOGE("%s: Could not retrieve native window from surface.", __FUNCTION__);
586        return BAD_VALUE;
587    }
588
589    status_t err = NO_ERROR;
590    CameraMetadata staticMetadata;
591
592    int32_t orientVal = static_cast<int32_t>(orientation);
593    uint8_t facingVal = static_cast<uint8_t>(facing);
594    staticMetadata.update(ANDROID_SENSOR_ORIENTATION, &orientVal, 1);
595    staticMetadata.update(ANDROID_LENS_FACING, &facingVal, 1);
596
597    int32_t transform = 0;
598
599    if ((err = CameraUtils::getRotationTransform(staticMetadata, /*out*/&transform)) != NO_ERROR) {
600        ALOGE("%s: Invalid rotation transform %s (%d)", __FUNCTION__, strerror(-err),
601                err);
602        return err;
603    }
604
605    ALOGV("%s: Setting buffer sticky transform to %d", __FUNCTION__, transform);
606
607    if ((err = native_window_set_buffers_sticky_transform(anw.get(), transform)) != NO_ERROR) {
608        ALOGE("%s: Unable to configure surface transform, error %s (%d)", __FUNCTION__,
609                strerror(-err), err);
610        return err;
611    }
612
613    return NO_ERROR;
614}
615
616static jint LegacyCameraDevice_nativeSetNextTimestamp(JNIEnv* env, jobject thiz, jobject surface,
617        jlong timestamp) {
618    ALOGV("nativeSetNextTimestamp");
619    sp<ANativeWindow> anw;
620    if ((anw = getNativeWindow(env, surface)) == NULL) {
621        ALOGE("%s: Could not retrieve native window from surface.", __FUNCTION__);
622        return BAD_VALUE;
623    }
624
625    status_t err = NO_ERROR;
626
627    if ((err = native_window_set_buffers_timestamp(anw.get(), static_cast<int64_t>(timestamp))) !=
628            NO_ERROR) {
629        ALOGE("%s: Unable to set surface timestamp, error %s (%d)", __FUNCTION__, strerror(-err),
630                err);
631        return err;
632    }
633    return NO_ERROR;
634}
635
636} // extern "C"
637
638static JNINativeMethod gCameraDeviceMethods[] = {
639    { "nativeDetectSurfaceType",
640    "(Landroid/view/Surface;)I",
641    (void *)LegacyCameraDevice_nativeDetectSurfaceType },
642    { "nativeDetectSurfaceDimens",
643    "(Landroid/view/Surface;[I)I",
644    (void *)LegacyCameraDevice_nativeDetectSurfaceDimens },
645    { "nativeConfigureSurface",
646    "(Landroid/view/Surface;III)I",
647    (void *)LegacyCameraDevice_nativeConfigureSurface },
648    { "nativeProduceFrame",
649    "(Landroid/view/Surface;[BIII)I",
650    (void *)LegacyCameraDevice_nativeProduceFrame },
651    { "nativeSetSurfaceFormat",
652    "(Landroid/view/Surface;I)I",
653    (void *)LegacyCameraDevice_nativeSetSurfaceFormat },
654    { "nativeSetSurfaceDimens",
655    "(Landroid/view/Surface;II)I",
656    (void *)LegacyCameraDevice_nativeSetSurfaceDimens },
657    { "nativeGetSurfaceId",
658    "(Landroid/view/Surface;)J",
659    (void *)LegacyCameraDevice_nativeGetSurfaceId },
660    { "nativeDetectTextureDimens",
661    "(Landroid/graphics/SurfaceTexture;[I)I",
662    (void *)LegacyCameraDevice_nativeDetectTextureDimens },
663    { "nativeSetSurfaceOrientation",
664    "(Landroid/view/Surface;II)I",
665    (void *)LegacyCameraDevice_nativeSetSurfaceOrientation },
666    { "nativeSetNextTimestamp",
667    "(Landroid/view/Surface;J)I",
668    (void *)LegacyCameraDevice_nativeSetNextTimestamp },
669};
670
671// Get all the required offsets in java class and register native functions
672int register_android_hardware_camera2_legacy_LegacyCameraDevice(JNIEnv* env)
673{
674    // Register native functions
675    return AndroidRuntime::registerNativeMethods(env,
676            CAMERA_DEVICE_CLASS_NAME,
677            gCameraDeviceMethods,
678            NELEM(gCameraDeviceMethods));
679}
680
681