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      1 /*
      2  * Copyright (C) 2016 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 "request_tracker.h"
     18 
     19 #include <gtest/gtest.h>
     20 
     21 using testing::Test;
     22 
     23 namespace default_camera_hal {
     24 
     25 class RequestTrackerTest : public Test {
     26  protected:
     27   void SetUp() {
     28     stream1_.max_buffers = 3;
     29     stream2_.max_buffers = 3;
     30     dut_.reset(new RequestTracker());
     31     streams_ = {&stream1_, &stream2_};
     32     camera3_stream_configuration_t config{
     33         static_cast<uint32_t>(streams_.size()),
     34         streams_.data(),
     35         0,
     36         nullptr};
     37     dut_->SetStreamConfiguration(config);
     38   }
     39 
     40   std::shared_ptr<CaptureRequest> GenerateCaptureRequest(
     41       uint32_t frame, std::vector<camera3_stream_t*> streams) {
     42     std::shared_ptr<CaptureRequest> request =
     43         std::make_shared<CaptureRequest>();
     44 
     45     // Set the frame number and buffers.
     46     request->frame_number = frame;
     47     for (const auto stream : streams) {
     48       // All we really care about for the buffers is which stream they're for.
     49       camera3_stream_buffer_t buffer{stream, nullptr, 0, -1, -1};
     50       request->output_buffers.push_back(buffer);
     51     }
     52 
     53     return request;
     54   }
     55 
     56   void AddRequest(uint32_t frame,
     57                   std::vector<camera3_stream_t*> streams,
     58                   bool expected = true) {
     59     std::shared_ptr<CaptureRequest> request =
     60         GenerateCaptureRequest(frame, streams);
     61     EXPECT_EQ(dut_->CanAddRequest(*request), expected);
     62     if (expected) {
     63       EXPECT_FALSE(dut_->InFlight(frame));
     64     }
     65     EXPECT_EQ(dut_->Add(request), expected);
     66     if (expected) {
     67       EXPECT_TRUE(dut_->InFlight(frame));
     68     }
     69   }
     70 
     71   camera3_stream_t stream1_;
     72   camera3_stream_t stream2_;
     73   std::vector<camera3_stream_t*> streams_;
     74   std::shared_ptr<RequestTracker> dut_;
     75 };
     76 
     77 TEST_F(RequestTrackerTest, AddValid) {
     78   uint32_t frame = 34;
     79   EXPECT_FALSE(dut_->InFlight(frame));
     80   AddRequest(frame, {&stream1_});
     81 }
     82 
     83 TEST_F(RequestTrackerTest, AddInput) {
     84   EXPECT_TRUE(dut_->Empty());
     85 
     86   // Add a request
     87   uint32_t frame = 42;
     88   std::shared_ptr<CaptureRequest> expected = GenerateCaptureRequest(frame, {});
     89   // Set the input buffer instead of any outputs.
     90   expected->input_buffer.reset(
     91       new camera3_stream_buffer_t{&stream1_, nullptr, 0, -1, -1});
     92   stream1_.max_buffers = 1;
     93 
     94   EXPECT_TRUE(dut_->Add(expected));
     95   EXPECT_TRUE(dut_->InFlight(frame));
     96   // Should have added to the count of buffers for stream 1.
     97   EXPECT_TRUE(dut_->StreamFull(&stream1_));
     98 }
     99 
    100 TEST_F(RequestTrackerTest, AddMultipleStreams) {
    101   stream1_.max_buffers = 1;
    102   stream2_.max_buffers = 1;
    103 
    104   EXPECT_FALSE(dut_->StreamFull(&stream1_));
    105   EXPECT_FALSE(dut_->StreamFull(&stream2_));
    106 
    107   // Add a request using both streams.
    108   AddRequest(99, {&stream1_, &stream2_});
    109 
    110   // Should both have been counted.
    111   EXPECT_TRUE(dut_->StreamFull(&stream1_));
    112   EXPECT_TRUE(dut_->StreamFull(&stream2_));
    113 }
    114 
    115 TEST_F(RequestTrackerTest, AddUnconfigured) {
    116   camera3_stream_t stream;
    117   // Unconfigured should be considered full.
    118   EXPECT_TRUE(dut_->StreamFull(&stream));
    119   AddRequest(1, {&stream}, false);
    120 }
    121 
    122 TEST_F(RequestTrackerTest, AddPastCapacity) {
    123   // Set the limit of stream 2 to 1.
    124   stream2_.max_buffers = 1;
    125 
    126   for (size_t i = 0; i < stream1_.max_buffers; ++i) {
    127     EXPECT_FALSE(dut_->StreamFull(&stream1_));
    128     EXPECT_FALSE(dut_->StreamFull(&stream2_));
    129     AddRequest(i, {&stream1_});
    130   }
    131   // Filled up stream 1.
    132   EXPECT_TRUE(dut_->StreamFull(&stream1_));
    133   // Stream 2 should still not be full since nothing was added.
    134   EXPECT_FALSE(dut_->StreamFull(&stream2_));
    135 
    136   // Limit has been hit, can't add more.
    137   AddRequest(stream1_.max_buffers, {&stream1_, &stream2_}, false);
    138   EXPECT_TRUE(dut_->StreamFull(&stream1_));
    139   // Should not have added to the count of stream 2.
    140   EXPECT_FALSE(dut_->StreamFull(&stream2_));
    141 }
    142 
    143 TEST_F(RequestTrackerTest, AddDuplicate) {
    144   uint32_t frame = 42;
    145   AddRequest(frame, {&stream1_});
    146   // Can't add a duplicate.
    147   AddRequest(frame, {&stream2_}, false);
    148 }
    149 
    150 TEST_F(RequestTrackerTest, RemoveValid) {
    151   EXPECT_TRUE(dut_->Empty());
    152 
    153   // Add a request
    154   uint32_t frame = 42;
    155   std::shared_ptr<CaptureRequest> request =
    156       GenerateCaptureRequest(frame, {&stream1_});
    157   EXPECT_TRUE(dut_->Add(request));
    158   EXPECT_TRUE(dut_->InFlight(frame));
    159   AddRequest(frame + 1, {&stream1_});
    160   EXPECT_FALSE(dut_->Empty());
    161 
    162   // Remove it.
    163   EXPECT_TRUE(dut_->Remove(request));
    164   // Should have removed only the desired request.
    165   EXPECT_FALSE(dut_->Empty());
    166 }
    167 
    168 TEST_F(RequestTrackerTest, RemoveInvalidFrame) {
    169   EXPECT_TRUE(dut_->Empty());
    170 
    171   // Add a request
    172   uint32_t frame = 42;
    173   AddRequest(frame, {&stream1_});
    174   EXPECT_FALSE(dut_->Empty());
    175 
    176   // Try to remove a different one.
    177   uint32_t bad_frame = frame + 1;
    178   std::shared_ptr<CaptureRequest> bad_request =
    179       GenerateCaptureRequest(bad_frame, {&stream1_});
    180   EXPECT_FALSE(dut_->InFlight(bad_frame));
    181   EXPECT_FALSE(dut_->Remove(bad_request));
    182   EXPECT_FALSE(dut_->Empty());
    183 }
    184 
    185 TEST_F(RequestTrackerTest, RemoveInvalidData) {
    186   EXPECT_TRUE(dut_->Empty());
    187 
    188   // Add a request
    189   uint32_t frame = 42;
    190   AddRequest(frame, {&stream1_});
    191   EXPECT_FALSE(dut_->Empty());
    192 
    193   // Try to remove a different one.
    194   // Even though this request looks the same, that fact that it is
    195   // a pointer to a different object means it should fail.
    196   std::shared_ptr<CaptureRequest> bad_request =
    197       GenerateCaptureRequest(frame, {&stream1_});
    198   EXPECT_TRUE(dut_->InFlight(frame));
    199   EXPECT_FALSE(dut_->Remove(bad_request));
    200   EXPECT_FALSE(dut_->Empty());
    201 }
    202 
    203 TEST_F(RequestTrackerTest, RemoveNull) {
    204   EXPECT_FALSE(dut_->Remove(nullptr));
    205 }
    206 
    207 TEST_F(RequestTrackerTest, ClearRequests) {
    208   // Create some requests.
    209   uint32_t frame1 = 42;
    210   uint32_t frame2 = frame1 + 1;
    211   std::shared_ptr<CaptureRequest> request1 =
    212       GenerateCaptureRequest(frame1, {&stream1_});
    213   std::shared_ptr<CaptureRequest> request2 =
    214       GenerateCaptureRequest(frame2, {&stream2_});
    215   std::set<std::shared_ptr<CaptureRequest>> expected;
    216   expected.insert(request1);
    217   expected.insert(request2);
    218 
    219   // Insert them.
    220   EXPECT_TRUE(dut_->Add(request1));
    221   EXPECT_TRUE(dut_->Add(request2));
    222   EXPECT_TRUE(dut_->InFlight(frame1));
    223   EXPECT_TRUE(dut_->InFlight(frame2));
    224   EXPECT_FALSE(dut_->Empty());
    225   std::set<std::shared_ptr<CaptureRequest>> actual;
    226 
    227   // Clear them out.
    228   dut_->Clear(&actual);
    229   EXPECT_TRUE(dut_->Empty());
    230   EXPECT_EQ(actual, expected);
    231 
    232   // Configuration (max values) should not have been cleared.
    233   EXPECT_TRUE(dut_->Add(request1));
    234 }
    235 
    236 TEST_F(RequestTrackerTest, ClearRequestsNoResult) {
    237   // Add some requests.
    238   EXPECT_TRUE(dut_->Empty());
    239   AddRequest(1, {&stream1_});
    240   AddRequest(2, {&stream2_});
    241   EXPECT_FALSE(dut_->Empty());
    242   // Don't bother getting the cleared requests.
    243   dut_->Clear();
    244   EXPECT_TRUE(dut_->Empty());
    245 }
    246 
    247 TEST_F(RequestTrackerTest, ClearConfiguration) {
    248   EXPECT_FALSE(dut_->StreamFull(&stream1_));
    249   EXPECT_FALSE(dut_->StreamFull(&stream2_));
    250 
    251   // Clear the configuration.
    252   dut_->ClearStreamConfiguration();
    253 
    254   // Both streams should be considered full now, since neither is configured.
    255   EXPECT_TRUE(dut_->StreamFull(&stream1_));
    256   EXPECT_TRUE(dut_->StreamFull(&stream2_));
    257 }
    258 
    259 }  // namespace default_camera_hal
    260