Home | History | Annotate | Download | only in usbcamera
      1 /*
      2  * Copyright (C) 2015 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_NDEBUG 0
     18 #define LOG_TAG "Stream"
     19 
     20 #include <stdio.h>
     21 
     22 #include <log/log.h>
     23 #include <utils/Mutex.h>
     24 
     25 #define ATRACE_TAG (ATRACE_TAG_CAMERA | ATRACE_TAG_HAL)
     26 #include <utils/Trace.h>
     27 
     28 #include <hardware/camera3.h>
     29 #include <hardware/gralloc.h>
     30 #include <system/graphics.h>
     31 
     32 #include "Stream.h"
     33 
     34 namespace usb_camera_hal {
     35 
     36 Stream::Stream(int id, camera3_stream_t *s)
     37   : mReuse(false),
     38     mId(id),
     39     mStream(s){
     40 }
     41 
     42 Stream::~Stream() {
     43     for (size_t i = 0; i < mBuffers.size(); i++) {
     44         delete mBuffers[i];
     45     }
     46 
     47     mBuffers.clear();
     48 }
     49 
     50 void Stream::setUsage(uint32_t usage) {
     51     android::Mutex::Autolock al(mLock);
     52     if (usage != mStream->usage) {
     53         mStream->usage = usage;
     54     }
     55 }
     56 
     57 void Stream::setMaxBuffers(uint32_t max_buffers) {
     58     android::Mutex::Autolock al(mLock);
     59     if (max_buffers != mStream->max_buffers) {
     60         mStream->max_buffers = max_buffers;
     61     }
     62 }
     63 
     64 int Stream::getType() {
     65     return mStream->stream_type;
     66 }
     67 
     68 bool Stream::isInputType() {
     69     return mStream->stream_type == CAMERA3_STREAM_INPUT ||
     70             mStream->stream_type == CAMERA3_STREAM_BIDIRECTIONAL;
     71 }
     72 
     73 bool Stream::isOutputType() {
     74     return mStream->stream_type == CAMERA3_STREAM_OUTPUT ||
     75             mStream->stream_type == CAMERA3_STREAM_BIDIRECTIONAL;
     76 }
     77 
     78 const char* Stream::typeToString(int type) {
     79     switch (type) {
     80     case CAMERA3_STREAM_INPUT:
     81         return "CAMERA3_STREAM_INPUT";
     82     case CAMERA3_STREAM_OUTPUT:
     83         return "CAMERA3_STREAM_OUTPUT";
     84     case CAMERA3_STREAM_BIDIRECTIONAL:
     85         return "CAMERA3_STREAM_BIDIRECTIONAL";
     86     }
     87     return "Invalid stream type!";
     88 }
     89 
     90 const char* Stream::formatToString(int format) {
     91     // See <system/graphics.h> for full list
     92     switch (format) {
     93     case HAL_PIXEL_FORMAT_BGRA_8888:
     94         return "BGRA 8888";
     95     case HAL_PIXEL_FORMAT_RGBA_8888:
     96         return "RGBA 8888";
     97     case HAL_PIXEL_FORMAT_RGBX_8888:
     98         return "RGBX 8888";
     99     case HAL_PIXEL_FORMAT_RGB_888:
    100         return "RGB 888";
    101     case HAL_PIXEL_FORMAT_RGB_565:
    102         return "RGB 565";
    103     case HAL_PIXEL_FORMAT_Y8:
    104         return "Y8";
    105     case HAL_PIXEL_FORMAT_Y16:
    106         return "Y16";
    107     case HAL_PIXEL_FORMAT_YV12:
    108         return "YV12";
    109     case HAL_PIXEL_FORMAT_YCbCr_422_SP:
    110         return "NV16";
    111     case HAL_PIXEL_FORMAT_YCrCb_420_SP:
    112         return "NV21";
    113     case HAL_PIXEL_FORMAT_YCbCr_422_I:
    114         return "YUY2";
    115     case HAL_PIXEL_FORMAT_RAW10:
    116         return "RAW10";
    117     case HAL_PIXEL_FORMAT_RAW16:
    118         return "RAW16";
    119     case HAL_PIXEL_FORMAT_BLOB:
    120         return "BLOB";
    121     case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED:
    122         return "IMPLEMENTATION DEFINED";
    123     case HAL_PIXEL_FORMAT_YCbCr_420_888:
    124         return "FLEXIBLE YCbCr 420 888";
    125     }
    126     return "Invalid stream format!";
    127 }
    128 
    129 bool Stream::isValidReuseStream(int id, camera3_stream_t *s) {
    130     if (id != mId) {
    131         ALOGE("%s:%d: Invalid camera id for reuse. Got %d expect %d",
    132                 __func__, mId, id, mId);
    133         return false;
    134     }
    135     if (s != mStream) {
    136         ALOGE("%s:%d: Invalid stream handle for reuse. Got %p expect %p",
    137                 __func__, mId, s, mStream);
    138         return false;
    139     }
    140     if (s->stream_type != mStream->stream_type) {
    141         ALOGE("%s:%d: Mismatched type in reused stream. Got %s(%d) "
    142                 "expect %s(%d)", __func__, mId, typeToString(s->stream_type),
    143                 s->stream_type, typeToString(mStream->stream_type), mStream->stream_type);
    144         return false;
    145     }
    146     if (s->format != mStream->format) {
    147         ALOGE("%s:%d: Mismatched format in reused stream. Got %s(%d) "
    148                 "expect %s(%d)", __func__, mId, formatToString(s->format),
    149                 s->format, formatToString(mStream->format), mStream->format);
    150         return false;
    151     }
    152     if (s->width != mStream->width) {
    153         ALOGE("%s:%d: Mismatched width in reused stream. Got %d expect %d",
    154                 __func__, mId, s->width, mStream->width);
    155         return false;
    156     }
    157     if (s->height != mStream->height) {
    158         ALOGE("%s:%d: Mismatched height in reused stream. Got %d expect %d",
    159                 __func__, mId, s->height, mStream->height);
    160         return false;
    161     }
    162     return true;
    163 }
    164 
    165 void Stream::dump(int fd) {
    166     android::Mutex::Autolock al(mLock);
    167 
    168     dprintf(fd, "Stream ID: %d (%p)\n", mId, mStream);
    169     dprintf(fd, "Stream Type: %s (%d)\n", typeToString(mStream->stream_type), mStream->stream_type);
    170     dprintf(fd, "Width: %" PRIu32 " Height: %" PRIu32 "\n", mStream->width, mStream->height);
    171     dprintf(fd, "Stream Format: %s (%d)", formatToString(mStream->format), mStream->format);
    172     // ToDo: prettyprint usage mask flags
    173     dprintf(fd, "Gralloc Usage Mask: %#" PRIx32 "\n", mStream->usage);
    174     dprintf(fd, "Max Buffer Count: %" PRIu32 "\n", mStream->max_buffers);
    175     dprintf(fd, "Number of Buffers in use by HAL: %zu\n", mBuffers.size());
    176     for (size_t i = 0; i < mBuffers.size(); i++) {
    177         dprintf(fd, "Buffer %zu/%zu: %p\n", i, mBuffers.size(), mBuffers[i]);
    178     }
    179 }
    180 
    181 } // namespace usb_camera_hal
    182