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      1 /*
      2  * Copyright 2018 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 #include <gtest/gtest.h>
     18 #include <media/NdkImageReader.h>
     19 #include <media/NdkImage.h>
     20 #include <private/media/NdkImage.h>
     21 #include <mediautils/AImageReaderUtils.h>
     22 #include <gui/IGraphicBufferProducer.h>
     23 #include <gui/bufferqueue/1.0/H2BGraphicBufferProducer.h>
     24 #include <NdkImageReaderPriv.h>
     25 #include <vndk/hardware_buffer.h>
     26 #include <memory>
     27 
     28 namespace android {
     29 
     30 using HGraphicBufferProducer = hardware::graphics::bufferqueue::V1_0::
     31         IGraphicBufferProducer;
     32 using hardware::graphics::bufferqueue::V1_0::utils::H2BGraphicBufferProducer;
     33 using aimg::AImageReader_getHGBPFromHandle;
     34 
     35 typedef IGraphicBufferProducer::QueueBufferInput QueueBufferInput;
     36 typedef IGraphicBufferProducer::QueueBufferOutput QueueBufferOutput;
     37 
     38 static constexpr uint64_t kImageBufferUsage =
     39     AHARDWAREBUFFER_USAGE_CPU_WRITE_OFTEN;
     40 static constexpr int kImageWidth = 640;
     41 static constexpr int kImageHeight = 480;
     42 static constexpr int kImageFormat = AIMAGE_FORMAT_RGBA_8888;
     43 static constexpr int kMaxImages = 1;
     44 
     45 static constexpr int64_t kQueueBufferInputTimeStamp = 1384888611;
     46 static constexpr bool kQueueBufferInputIsAutoTimeStamp = false;
     47 static constexpr android_dataspace kQueueBufferInputDataspace = HAL_DATASPACE_UNKNOWN;
     48 static const Rect kQueueBufferInputRect = Rect(kImageWidth, kImageHeight);
     49 static constexpr int kQueueBufferInputScalingMode = 0;
     50 static constexpr int kQueueBufferInputTransform = 0;
     51 static const sp<Fence> kQueueBufferInputFence = Fence::NO_FENCE;
     52 
     53 static constexpr int kOnImageAvailableWaitUs = 100 * 1000;
     54 
     55 class AImageReaderWindowHandleTest : public ::testing::Test {
     56    public:
     57     void SetUp() override {
     58         AImageReader_newWithUsage(kImageWidth, kImageHeight, kImageFormat,
     59                                   kImageBufferUsage , kMaxImages, &imageReader_);
     60         media_status_t ret = AMEDIA_ERROR_UNKNOWN;
     61         ASSERT_NE(imageReader_, nullptr);
     62         ret = AImageReader_setImageListener(imageReader_,
     63                                             &imageReaderAvailableCb_);
     64         ASSERT_EQ(ret, AMEDIA_OK);
     65         ret = AImageReader_setBufferRemovedListener(imageReader_,
     66                                                     &imageReaderDetachedCb_);
     67         ASSERT_EQ(ret, AMEDIA_OK);
     68     }
     69     void TearDown() override {
     70         if (imageReader_) {
     71             AImageReader_delete(imageReader_);
     72         }
     73     }
     74 
     75     void HandleImageAvailable() {
     76         AImage *outImage = nullptr;
     77         media_status_t ret = AMEDIA_OK;
     78         auto imageDeleter = [](AImage *img) { AImage_delete(img); };
     79         std::unique_ptr<AImage, decltype(imageDeleter)> img(nullptr, imageDeleter);
     80 
     81         // Test that the image can be acquired.
     82         ret = AImageReader_acquireNextImage(imageReader_, &outImage);
     83         ASSERT_EQ(ret, AMEDIA_OK);
     84         img.reset(outImage);
     85         ASSERT_NE(img, nullptr);
     86 
     87         // Test that we can get a handle to the image's hardware buffer and a
     88         // native handle to it.
     89         AHardwareBuffer *hardwareBuffer = nullptr;
     90         ret = AImage_getHardwareBuffer(img.get(), &hardwareBuffer);
     91         ASSERT_EQ(ret, AMEDIA_OK);
     92         ASSERT_NE(hardwareBuffer, nullptr);
     93         const native_handle_t *nh = AHardwareBuffer_getNativeHandle(hardwareBuffer);
     94         ASSERT_NE(nh, nullptr);
     95         std::unique_lock<std::mutex> lock(imageAvailableMutex_);
     96         imageAvailable_ = true;
     97         imageCondVar_.notify_one();
     98     }
     99 
    100     static void onImageAvailable(void *context, AImageReader *reader) {
    101         (void)reader;
    102         AImageReaderWindowHandleTest *thisContext =
    103             reinterpret_cast<AImageReaderWindowHandleTest *>(context);
    104         thisContext->HandleImageAvailable();
    105     }
    106 
    107     static void onBufferRemoved(void *, AImageReader *, AHardwareBuffer *) {
    108     }
    109 
    110     AImageReader *imageReader_ = nullptr;
    111     AImageReader_ImageListener imageReaderAvailableCb_{this, onImageAvailable};
    112     AImageReader_BufferRemovedListener imageReaderDetachedCb_{this, onBufferRemoved};
    113     std::mutex imageAvailableMutex_;
    114     std::condition_variable imageCondVar_;
    115     bool imageAvailable_ = false;
    116 };
    117 
    118 static void fillRGBA8Buffer(uint8_t* buf, int w, int h, int stride) {
    119     const size_t PIXEL_SIZE = 4;
    120     for (int x = 0; x < w; x++) {
    121         for (int y = 0; y < h; y++) {
    122             off_t offset = (y * stride + x) * PIXEL_SIZE;
    123             for (int c = 0; c < 4; c++) {
    124                 int parityX = (x / (1 << (c+2))) & 1;
    125                 int parityY = (y / (1 << (c+2))) & 1;
    126                 buf[offset + c] = (parityX ^ parityY) ? 231 : 35;
    127             }
    128         }
    129     }
    130 }
    131 
    132 TEST_F(AImageReaderWindowHandleTest, CreateWindowNativeHandle) {
    133     // Check that we can create a native_handle_t corresponding to the
    134     // AImageReader.
    135     native_handle_t *nh = nullptr;
    136     AImageReader_getWindowNativeHandle(imageReader_, &nh);
    137     ASSERT_NE(nh, nullptr);
    138 
    139     // Check that there are only ints in the handle.
    140     ASSERT_EQ(nh->numFds, 0);
    141     ASSERT_NE(nh->numInts, 0);
    142 
    143     // Check that the HGBP can be retrieved from the handle.
    144     sp<HGraphicBufferProducer> hgbp =  AImageReader_getHGBPFromHandle(nh);
    145     ASSERT_NE(hgbp, nullptr);
    146     sp<IGraphicBufferProducer> igbp = new H2BGraphicBufferProducer(hgbp);
    147     int dequeuedSlot = -1;
    148     sp<Fence> dequeuedFence;
    149     IGraphicBufferProducer::QueueBufferOutput output;
    150     ASSERT_EQ(OK, igbp->connect(nullptr, NATIVE_WINDOW_API_CPU, false, &output));
    151 
    152     // Test that we can dequeue a buffer.
    153     ASSERT_EQ(OK,
    154               ~IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION &
    155                       (igbp->dequeueBuffer(&dequeuedSlot, &dequeuedFence,
    156                                            kImageWidth, kImageHeight,
    157                                            kImageFormat, kImageBufferUsage,
    158                                            nullptr, nullptr)));
    159     EXPECT_LE(0, dequeuedSlot);
    160     EXPECT_GT(BufferQueue::NUM_BUFFER_SLOTS, dequeuedSlot);
    161 
    162     sp<GraphicBuffer> dequeuedBuffer;
    163     igbp->requestBuffer(dequeuedSlot, &dequeuedBuffer);
    164     uint8_t* img = nullptr;
    165     ASSERT_EQ(NO_ERROR, dequeuedBuffer->lock(kImageBufferUsage, (void**)(&img)));
    166 
    167     // Write in some dummy image data.
    168     fillRGBA8Buffer(img, dequeuedBuffer->getWidth(), dequeuedBuffer->getHeight(),
    169                     dequeuedBuffer->getStride());
    170     ASSERT_EQ(NO_ERROR, dequeuedBuffer->unlock());
    171     QueueBufferInput queueBufferInput(kQueueBufferInputTimeStamp,
    172                                       kQueueBufferInputIsAutoTimeStamp,
    173                                       kQueueBufferInputDataspace,
    174                                       kQueueBufferInputRect,
    175                                       kQueueBufferInputScalingMode,
    176                                       kQueueBufferInputTransform,
    177                                       kQueueBufferInputFence);
    178     QueueBufferOutput queueBufferOutput;
    179     ASSERT_EQ(OK, igbp->queueBuffer(dequeuedSlot, queueBufferInput,
    180                                     &queueBufferOutput));
    181     // wait until the onImageAvailable callback is called, or timeout completes.
    182     std::unique_lock<std::mutex> lock(imageAvailableMutex_);
    183     imageCondVar_.wait_for(lock, std::chrono::microseconds(kOnImageAvailableWaitUs),
    184                            [this]{ return this->imageAvailable_;});
    185     EXPECT_TRUE(imageAvailable_) <<  "Timed out waiting for image data to be handled!\n";
    186 }
    187 
    188 class AImageReaderPrivateFormatTest : public ::testing::Test {
    189   public:
    190     void SetUp() override {
    191         auto status = AImageReader_new(kImageWidth, kImageHeight, AIMAGE_FORMAT_RAW_DEPTH,
    192                                        kMaxImages, &imgReader);
    193         EXPECT_TRUE(status == AMEDIA_OK);
    194     }
    195 
    196     void TearDown() override {
    197         if (imgReader) {
    198             AImageReader_delete(imgReader);
    199         }
    200     }
    201     AImageReader *imgReader = nullptr;
    202 };
    203 
    204 TEST_F(AImageReaderPrivateFormatTest, CreateTest) {
    205     EXPECT_TRUE(imgReader != nullptr);
    206 }
    207 
    208 
    209 }  // namespace android
    210