android_hardware_camera2_legacy_LegacyCameraDevice.cpp revision 31798f33184fd59dd3d3cc55e6373d9f91d220b6 
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, size_t width, size_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    size_t cStrideDiff = chromaStride - width;
61
62    for (size_t j = 0; j < height; j++) {
63        for (size_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, size_t width, size_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 bufWidth, // Width of the pixelBuffer
161                             int32_t bufHeight, // 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(), bufWidth, bufHeight, 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 (bufWidth < 0) {
177        ALOGE("%s: width must be non-negative", __FUNCTION__);
178        return BAD_VALUE;
179    } else if (bufHeight < 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    size_t width = static_cast<size_t>(bufWidth);
188    size_t height = static_cast<size_t>(bufHeight);
189    size_t bufferLength = static_cast<size_t>(bufSize);
190
191    // TODO: Switch to using Surface::lock and Surface::unlockAndPost
192    err = native_window_dequeue_buffer_and_wait(anw.get(), &anb);
193    if (err != NO_ERROR) return err;
194
195    sp<GraphicBuffer> buf(new GraphicBuffer(anb, /*keepOwnership*/false));
196    uint32_t gBufWidth = buf->getWidth();
197    uint32_t gBufHeight = buf->getHeight();
198    if (gBufWidth != width || gBufHeight != height) {
199        ALOGE("%s: Received gralloc buffer with bad dimensions %" PRIu32 "x%" PRIu32
200                ", expecting dimensions %zu x %zu",  __FUNCTION__, gBufWidth, gBufHeight,
201                width, height);
202        return BAD_VALUE;
203    }
204
205    int32_t bufFmt = 0;
206    err = anw->query(anw.get(), NATIVE_WINDOW_FORMAT, &bufFmt);
207    if (err != NO_ERROR) {
208        ALOGE("%s: Error while querying surface pixel format %s (%d).", __FUNCTION__,
209                strerror(-err), err);
210        return err;
211    }
212
213    uint64_t tmpSize = width * height;
214    if (bufFmt != pixelFmt) {
215        if (bufFmt == HAL_PIXEL_FORMAT_RGBA_8888 && pixelFmt == HAL_PIXEL_FORMAT_BLOB) {
216            ALOGV("%s: Using BLOB to RGBA format override.", __FUNCTION__);
217            tmpSize *= 4;
218        } else {
219            ALOGW("%s: Format mismatch in produceFrame: expecting format %#" PRIx32
220                    ", but received buffer with format %#" PRIx32, __FUNCTION__, pixelFmt, bufFmt);
221        }
222    }
223
224    if (tmpSize > SIZE_MAX) {
225        ALOGE("%s: Overflow calculating size, buffer with dimens %zu x %zu is absurdly large...",
226                __FUNCTION__, width, height);
227        return BAD_VALUE;
228    }
229
230    size_t totalSizeBytes = tmpSize;
231
232    switch(pixelFmt) {
233        case HAL_PIXEL_FORMAT_YCrCb_420_SP: {
234            if (bufferLength < totalSizeBytes) {
235                ALOGE("%s: PixelBuffer size %zu too small for given dimensions",
236                        __FUNCTION__, bufferLength);
237                return BAD_VALUE;
238            }
239            uint8_t* img = NULL;
240            ALOGV("%s: Lock buffer from %p for write", __FUNCTION__, anw.get());
241            err = buf->lock(GRALLOC_USAGE_SW_WRITE_OFTEN, (void**)(&img));
242            if (err != NO_ERROR) return err;
243
244            uint8_t* yPlane = img;
245            uint8_t* uPlane = img + height * width;
246            uint8_t* vPlane = uPlane + 1;
247            size_t chromaStep = 2;
248            size_t yStride = width;
249            size_t chromaStride = width;
250
251            rgbToYuv420(pixelBuffer, width, height, yPlane,
252                    uPlane, vPlane, chromaStep, yStride, chromaStride);
253            break;
254        }
255        case HAL_PIXEL_FORMAT_YV12: {
256            if (bufferLength < totalSizeBytes) {
257                ALOGE("%s: PixelBuffer size %zu too small for given dimensions",
258                        __FUNCTION__, bufferLength);
259                return BAD_VALUE;
260            }
261
262            if ((width & 1) || (height & 1)) {
263                ALOGE("%s: Dimens %zu x %zu are not divisible by 2.", __FUNCTION__, width, height);
264                return BAD_VALUE;
265            }
266
267            uint8_t* img = NULL;
268            ALOGV("%s: Lock buffer from %p for write", __FUNCTION__, anw.get());
269            err = buf->lock(GRALLOC_USAGE_SW_WRITE_OFTEN, (void**)(&img));
270            if (err != NO_ERROR) {
271                ALOGE("%s: Error %s (%d) while locking gralloc buffer for write.", __FUNCTION__,
272                        strerror(-err), err);
273                return err;
274            }
275
276            uint32_t stride = buf->getStride();
277            LOG_ALWAYS_FATAL_IF(stride % 16, "Stride is not 16 pixel aligned %d", stride);
278
279            uint32_t cStride = ALIGN(stride / 2, 16);
280            size_t chromaStep = 1;
281
282            uint8_t* yPlane = img;
283            uint8_t* crPlane = img + static_cast<uint32_t>(height) * stride;
284            uint8_t* cbPlane = crPlane + cStride * static_cast<uint32_t>(height) / 2;
285
286            rgbToYuv420(pixelBuffer, width, height, yPlane,
287                    crPlane, cbPlane, chromaStep, stride, cStride);
288            break;
289        }
290        case HAL_PIXEL_FORMAT_YCbCr_420_888: {
291            // Software writes with YCbCr_420_888 format are unsupported
292            // by the gralloc module for now
293            if (bufferLength < totalSizeBytes) {
294                ALOGE("%s: PixelBuffer size %zu too small for given dimensions",
295                        __FUNCTION__, bufferLength);
296                return BAD_VALUE;
297            }
298            android_ycbcr ycbcr = android_ycbcr();
299            ALOGV("%s: Lock buffer from %p for write", __FUNCTION__, anw.get());
300
301            err = buf->lockYCbCr(GRALLOC_USAGE_SW_WRITE_OFTEN, &ycbcr);
302            if (err != NO_ERROR) {
303                ALOGE("%s: Failed to lock ycbcr buffer, error %s (%d).", __FUNCTION__,
304                        strerror(-err), err);
305                return err;
306            }
307            rgbToYuv420(pixelBuffer, width, height, &ycbcr);
308            break;
309        }
310        case HAL_PIXEL_FORMAT_BLOB: {
311            int8_t* img = NULL;
312            struct camera3_jpeg_blob footer = {
313                jpeg_blob_id: CAMERA3_JPEG_BLOB_ID,
314                jpeg_size: (uint32_t)width
315            };
316
317            size_t totalJpegSize = bufferLength + sizeof(footer);
318            totalJpegSize = (totalJpegSize + 3) & ~0x3; // round up to nearest octonibble
319
320            if (height != 1) {
321                ALOGE("%s: Invalid height set for JPEG buffer output, %zu", __FUNCTION__, height);
322                return BAD_VALUE;
323            }
324
325            if (totalJpegSize > totalSizeBytes) {
326                ALOGE("%s: Pixel buffer needs size %zu, cannot fit in gralloc buffer of size %zu",
327                        __FUNCTION__, totalJpegSize, totalSizeBytes);
328                return BAD_VALUE;
329            }
330
331            err = buf->lock(GRALLOC_USAGE_SW_WRITE_OFTEN, (void**)(&img));
332            if (err != NO_ERROR) {
333                ALOGE("%s: Failed to lock buffer, error %s (%d).", __FUNCTION__, strerror(-err),
334                        err);
335                return err;
336            }
337
338            memcpy(img, pixelBuffer, bufferLength);
339            memcpy(img + totalSizeBytes - sizeof(footer), &footer, sizeof(footer));
340            break;
341        }
342        default: {
343            ALOGE("%s: Invalid pixel format in produceFrame: %x", __FUNCTION__, pixelFmt);
344            return BAD_VALUE;
345        }
346    }
347
348    ALOGV("%s: Unlock buffer from %p", __FUNCTION__, anw.get());
349    err = buf->unlock();
350    if (err != NO_ERROR) {
351        ALOGE("%s: Failed to unlock buffer, error %s (%d).", __FUNCTION__, strerror(-err), err);
352        return err;
353    }
354
355    ALOGV("%s: Queue buffer to %p", __FUNCTION__, anw.get());
356    err = anw->queueBuffer(anw.get(), buf->getNativeBuffer(), /*fenceFd*/-1);
357    if (err != NO_ERROR) {
358        ALOGE("%s: Failed to queue buffer, error %s (%d).", __FUNCTION__, strerror(-err), err);
359        return err;
360    }
361    return NO_ERROR;
362}
363
364static sp<ANativeWindow> getNativeWindow(JNIEnv* env, jobject surface) {
365    sp<ANativeWindow> anw;
366    if (surface) {
367        anw = android_view_Surface_getNativeWindow(env, surface);
368        if (env->ExceptionCheck()) {
369            return NULL;
370        }
371    } else {
372        jniThrowNullPointerException(env, "surface");
373        return NULL;
374    }
375    if (anw == NULL) {
376        jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException",
377                "Surface had no valid native window.");
378        return NULL;
379    }
380    return anw;
381}
382
383static sp<ANativeWindow> getNativeWindowFromTexture(JNIEnv* env, jobject surfaceTexture) {
384    sp<ANativeWindow> anw;
385    if (surfaceTexture) {
386        anw = android_SurfaceTexture_getNativeWindow(env, surfaceTexture);
387        if (env->ExceptionCheck()) {
388            return NULL;
389        }
390    } else {
391        jniThrowNullPointerException(env, "surfaceTexture");
392        return NULL;
393    }
394    if (anw == NULL) {
395        jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException",
396                "SurfaceTexture had no valid native window.");
397        return NULL;
398    }
399    return anw;
400}
401
402static sp<Surface> getSurface(JNIEnv* env, jobject surface) {
403    sp<Surface> s;
404    if (surface) {
405        s = android_view_Surface_getSurface(env, surface);
406        if (env->ExceptionCheck()) {
407            return NULL;
408        }
409    } else {
410        jniThrowNullPointerException(env, "surface");
411        return NULL;
412    }
413    if (s == NULL) {
414        jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException",
415                "Surface had no valid native Surface.");
416        return NULL;
417    }
418    return s;
419}
420
421extern "C" {
422
423static jint LegacyCameraDevice_nativeDetectSurfaceType(JNIEnv* env, jobject thiz, jobject surface) {
424    ALOGV("nativeDetectSurfaceType");
425    sp<ANativeWindow> anw;
426    if ((anw = getNativeWindow(env, surface)) == NULL) {
427        ALOGE("%s: Could not retrieve native window from surface.", __FUNCTION__);
428        return BAD_VALUE;
429    }
430    int32_t fmt = 0;
431    status_t err = anw->query(anw.get(), NATIVE_WINDOW_FORMAT, &fmt);
432    if(err != NO_ERROR) {
433        ALOGE("%s: Error while querying surface pixel format %s (%d).", __FUNCTION__, strerror(-err),
434                err);
435        return err;
436    }
437    return fmt;
438}
439
440static jint LegacyCameraDevice_nativeDetectSurfaceDimens(JNIEnv* env, jobject thiz,
441          jobject surface, jintArray dimens) {
442    ALOGV("nativeGetSurfaceDimens");
443
444    if (dimens == NULL) {
445        ALOGE("%s: Null dimens argument passed to nativeDetectSurfaceDimens", __FUNCTION__);
446        return BAD_VALUE;
447    }
448
449    if (env->GetArrayLength(dimens) < 2) {
450        ALOGE("%s: Invalid length of dimens argument in nativeDetectSurfaceDimens", __FUNCTION__);
451        return BAD_VALUE;
452    }
453
454    sp<ANativeWindow> anw;
455    if ((anw = getNativeWindow(env, surface)) == NULL) {
456        ALOGE("%s: Could not retrieve native window from surface.", __FUNCTION__);
457        return BAD_VALUE;
458    }
459    int32_t dimenBuf[2];
460    status_t err = anw->query(anw.get(), NATIVE_WINDOW_WIDTH, dimenBuf);
461    if(err != NO_ERROR) {
462        ALOGE("%s: Error while querying surface width %s (%d).", __FUNCTION__, strerror(-err),
463                err);
464        return err;
465    }
466    err = anw->query(anw.get(), NATIVE_WINDOW_HEIGHT, dimenBuf + 1);
467    if(err != NO_ERROR) {
468        ALOGE("%s: Error while querying surface height %s (%d).", __FUNCTION__, strerror(-err),
469                err);
470        return err;
471    }
472    env->SetIntArrayRegion(dimens, /*start*/0, /*length*/ARRAY_SIZE(dimenBuf), dimenBuf);
473    return NO_ERROR;
474}
475
476static jint LegacyCameraDevice_nativeDetectTextureDimens(JNIEnv* env, jobject thiz,
477        jobject surfaceTexture, jintArray dimens) {
478    ALOGV("nativeDetectTextureDimens");
479    sp<ANativeWindow> anw;
480    if ((anw = getNativeWindowFromTexture(env, surfaceTexture)) == NULL) {
481        ALOGE("%s: Could not retrieve native window from SurfaceTexture.", __FUNCTION__);
482        return BAD_VALUE;
483    }
484
485    int32_t dimenBuf[2];
486    status_t err = anw->query(anw.get(), NATIVE_WINDOW_WIDTH, dimenBuf);
487    if(err != NO_ERROR) {
488        ALOGE("%s: Error while querying SurfaceTexture width %s (%d)", __FUNCTION__,
489                strerror(-err), err);
490        return err;
491    }
492
493    err = anw->query(anw.get(), NATIVE_WINDOW_HEIGHT, dimenBuf + 1);
494    if(err != NO_ERROR) {
495        ALOGE("%s: Error while querying SurfaceTexture height %s (%d)", __FUNCTION__,
496                strerror(-err), err);
497        return err;
498    }
499
500    env->SetIntArrayRegion(dimens, /*start*/0, /*length*/ARRAY_SIZE(dimenBuf), dimenBuf);
501    if (env->ExceptionCheck()) {
502        return BAD_VALUE;
503    }
504    return NO_ERROR;
505}
506
507static jint LegacyCameraDevice_nativeConfigureSurface(JNIEnv* env, jobject thiz, jobject surface,
508        jint width, jint height, jint pixelFormat) {
509    ALOGV("nativeConfigureSurface");
510    sp<ANativeWindow> anw;
511    if ((anw = getNativeWindow(env, surface)) == NULL) {
512        ALOGE("%s: Could not retrieve native window from surface.", __FUNCTION__);
513        return BAD_VALUE;
514    }
515    status_t err = configureSurface(anw, width, height, pixelFormat, CAMERA_DEVICE_BUFFER_SLACK);
516    if (err != NO_ERROR) {
517        ALOGE("%s: Error while configuring surface %s (%d).", __FUNCTION__, strerror(-err), err);
518        return err;
519    }
520    return NO_ERROR;
521}
522
523static jint LegacyCameraDevice_nativeProduceFrame(JNIEnv* env, jobject thiz, jobject surface,
524        jbyteArray pixelBuffer, jint width, jint height, jint pixelFormat) {
525    ALOGV("nativeProduceFrame");
526    sp<ANativeWindow> anw;
527
528    if ((anw = getNativeWindow(env, surface)) == NULL) {
529        ALOGE("%s: Could not retrieve native window from surface.", __FUNCTION__);
530        return BAD_VALUE;
531    }
532
533    if (pixelBuffer == NULL) {
534        jniThrowNullPointerException(env, "pixelBuffer");
535        return DONT_CARE;
536    }
537
538    int32_t bufSize = static_cast<int32_t>(env->GetArrayLength(pixelBuffer));
539    jbyte* pixels = env->GetByteArrayElements(pixelBuffer, /*is_copy*/NULL);
540
541    if (pixels == NULL) {
542        jniThrowNullPointerException(env, "pixels");
543        return DONT_CARE;
544    }
545
546    status_t err = produceFrame(anw, reinterpret_cast<uint8_t*>(pixels), width, height,
547            pixelFormat, bufSize);
548    env->ReleaseByteArrayElements(pixelBuffer, pixels, JNI_ABORT);
549
550    if (err != NO_ERROR) {
551        ALOGE("%s: Error while producing frame %s (%d).", __FUNCTION__, strerror(-err), err);
552        return err;
553    }
554    return NO_ERROR;
555}
556
557static jint LegacyCameraDevice_nativeSetSurfaceFormat(JNIEnv* env, jobject thiz, jobject surface,
558        jint pixelFormat) {
559    ALOGV("nativeSetSurfaceType");
560    sp<ANativeWindow> anw;
561    if ((anw = getNativeWindow(env, surface)) == NULL) {
562        ALOGE("%s: Could not retrieve native window from surface.", __FUNCTION__);
563        return BAD_VALUE;
564    }
565    status_t err = native_window_set_buffers_format(anw.get(), pixelFormat);
566    if (err != NO_ERROR) {
567        ALOGE("%s: Error while setting surface format %s (%d).", __FUNCTION__, strerror(-err), err);
568        return err;
569    }
570    return NO_ERROR;
571}
572
573static jint LegacyCameraDevice_nativeSetSurfaceDimens(JNIEnv* env, jobject thiz, jobject surface,
574        jint width, jint height) {
575    ALOGV("nativeSetSurfaceDimens");
576    sp<ANativeWindow> anw;
577    if ((anw = getNativeWindow(env, surface)) == NULL) {
578        ALOGE("%s: Could not retrieve native window from surface.", __FUNCTION__);
579        return BAD_VALUE;
580    }
581    status_t err = native_window_set_buffers_dimensions(anw.get(), width, height);
582    if (err != NO_ERROR) {
583        ALOGE("%s: Error while setting surface dimens %s (%d).", __FUNCTION__, strerror(-err), err);
584        return err;
585    }
586
587    // WAR - Set user dimensions also to avoid incorrect scaling after TextureView orientation
588    // change.
589    err = native_window_set_buffers_user_dimensions(anw.get(), width, height);
590    if (err != NO_ERROR) {
591        ALOGE("%s: Error while setting surface user dimens %s (%d).", __FUNCTION__, strerror(-err),
592                err);
593        return err;
594    }
595    return NO_ERROR;
596}
597
598static jlong LegacyCameraDevice_nativeGetSurfaceId(JNIEnv* env, jobject thiz, jobject surface) {
599    ALOGV("nativeGetSurfaceId");
600    sp<Surface> s;
601    if ((s = getSurface(env, surface)) == NULL) {
602        ALOGE("%s: Could not retrieve native Surface from surface.", __FUNCTION__);
603        return 0;
604    }
605    sp<IGraphicBufferProducer> gbp = s->getIGraphicBufferProducer();
606    if (gbp == NULL) {
607        ALOGE("%s: Could not retrieve IGraphicBufferProducer from surface.", __FUNCTION__);
608        return 0;
609    }
610    sp<IBinder> b = gbp->asBinder();
611    if (b == NULL) {
612        ALOGE("%s: Could not retrieve IBinder from surface.", __FUNCTION__);
613        return 0;
614    }
615    /*
616     * FIXME: Use better unique ID for surfaces than native IBinder pointer.  Fix also in the camera
617     * service (CameraDeviceClient.h).
618     */
619    return reinterpret_cast<jlong>(b.get());
620}
621
622static jint LegacyCameraDevice_nativeSetSurfaceOrientation(JNIEnv* env, jobject thiz,
623        jobject surface, jint facing, jint orientation) {
624    ALOGV("nativeSetSurfaceOrientation");
625    sp<ANativeWindow> anw;
626    if ((anw = getNativeWindow(env, surface)) == NULL) {
627        ALOGE("%s: Could not retrieve native window from surface.", __FUNCTION__);
628        return BAD_VALUE;
629    }
630
631    status_t err = NO_ERROR;
632    CameraMetadata staticMetadata;
633
634    int32_t orientVal = static_cast<int32_t>(orientation);
635    uint8_t facingVal = static_cast<uint8_t>(facing);
636    staticMetadata.update(ANDROID_SENSOR_ORIENTATION, &orientVal, 1);
637    staticMetadata.update(ANDROID_LENS_FACING, &facingVal, 1);
638
639    int32_t transform = 0;
640
641    if ((err = CameraUtils::getRotationTransform(staticMetadata, /*out*/&transform)) != NO_ERROR) {
642        ALOGE("%s: Invalid rotation transform %s (%d)", __FUNCTION__, strerror(-err),
643                err);
644        return err;
645    }
646
647    ALOGV("%s: Setting buffer sticky transform to %d", __FUNCTION__, transform);
648
649    if ((err = native_window_set_buffers_sticky_transform(anw.get(), transform)) != NO_ERROR) {
650        ALOGE("%s: Unable to configure surface transform, error %s (%d)", __FUNCTION__,
651                strerror(-err), err);
652        return err;
653    }
654
655    return NO_ERROR;
656}
657
658static jint LegacyCameraDevice_nativeSetNextTimestamp(JNIEnv* env, jobject thiz, jobject surface,
659        jlong timestamp) {
660    ALOGV("nativeSetNextTimestamp");
661    sp<ANativeWindow> anw;
662    if ((anw = getNativeWindow(env, surface)) == NULL) {
663        ALOGE("%s: Could not retrieve native window from surface.", __FUNCTION__);
664        return BAD_VALUE;
665    }
666
667    status_t err = NO_ERROR;
668
669    if ((err = native_window_set_buffers_timestamp(anw.get(), static_cast<int64_t>(timestamp))) !=
670            NO_ERROR) {
671        ALOGE("%s: Unable to set surface timestamp, error %s (%d)", __FUNCTION__, strerror(-err),
672                err);
673        return err;
674    }
675    return NO_ERROR;
676}
677
678static jint LegacyCameraDevice_nativeGetJpegFooterSize(JNIEnv* env, jobject thiz) {
679    ALOGV("nativeGetJpegFooterSize");
680    return static_cast<jint>(sizeof(struct camera3_jpeg_blob));
681}
682
683} // extern "C"
684
685static JNINativeMethod gCameraDeviceMethods[] = {
686    { "nativeDetectSurfaceType",
687    "(Landroid/view/Surface;)I",
688    (void *)LegacyCameraDevice_nativeDetectSurfaceType },
689    { "nativeDetectSurfaceDimens",
690    "(Landroid/view/Surface;[I)I",
691    (void *)LegacyCameraDevice_nativeDetectSurfaceDimens },
692    { "nativeConfigureSurface",
693    "(Landroid/view/Surface;III)I",
694    (void *)LegacyCameraDevice_nativeConfigureSurface },
695    { "nativeProduceFrame",
696    "(Landroid/view/Surface;[BIII)I",
697    (void *)LegacyCameraDevice_nativeProduceFrame },
698    { "nativeSetSurfaceFormat",
699    "(Landroid/view/Surface;I)I",
700    (void *)LegacyCameraDevice_nativeSetSurfaceFormat },
701    { "nativeSetSurfaceDimens",
702    "(Landroid/view/Surface;II)I",
703    (void *)LegacyCameraDevice_nativeSetSurfaceDimens },
704    { "nativeGetSurfaceId",
705    "(Landroid/view/Surface;)J",
706    (void *)LegacyCameraDevice_nativeGetSurfaceId },
707    { "nativeDetectTextureDimens",
708    "(Landroid/graphics/SurfaceTexture;[I)I",
709    (void *)LegacyCameraDevice_nativeDetectTextureDimens },
710    { "nativeSetSurfaceOrientation",
711    "(Landroid/view/Surface;II)I",
712    (void *)LegacyCameraDevice_nativeSetSurfaceOrientation },
713    { "nativeSetNextTimestamp",
714    "(Landroid/view/Surface;J)I",
715    (void *)LegacyCameraDevice_nativeSetNextTimestamp },
716    { "nativeGetJpegFooterSize",
717    "()I",
718    (void *)LegacyCameraDevice_nativeGetJpegFooterSize },
719};
720
721// Get all the required offsets in java class and register native functions
722int register_android_hardware_camera2_legacy_LegacyCameraDevice(JNIEnv* env)
723{
724    // Register native functions
725    return AndroidRuntime::registerNativeMethods(env,
726            CAMERA_DEVICE_CLASS_NAME,
727            gCameraDeviceMethods,
728            NELEM(gCameraDeviceMethods));
729}
730
731