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      1 /*
      2  * Copyright (C) 2012 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 "BufferQueue_test"
     18 //#define LOG_NDEBUG 0
     19 
     20 #include <gtest/gtest.h>
     21 
     22 #include <utils/String8.h>
     23 #include <utils/threads.h>
     24 
     25 #include <ui/GraphicBuffer.h>
     26 #include <ui/FramebufferNativeWindow.h>
     27 
     28 #include <gui/BufferQueue.h>
     29 
     30 namespace android {
     31 
     32 class BufferQueueTest : public ::testing::Test {
     33 protected:
     34 
     35     BufferQueueTest() {}
     36 
     37     virtual void SetUp() {
     38         const ::testing::TestInfo* const testInfo =
     39             ::testing::UnitTest::GetInstance()->current_test_info();
     40         ALOGV("Begin test: %s.%s", testInfo->test_case_name(),
     41                 testInfo->name());
     42 
     43         mBQ = new BufferQueue();
     44     }
     45 
     46     virtual void TearDown() {
     47         mBQ.clear();
     48 
     49         const ::testing::TestInfo* const testInfo =
     50             ::testing::UnitTest::GetInstance()->current_test_info();
     51         ALOGV("End test:   %s.%s", testInfo->test_case_name(),
     52                 testInfo->name());
     53     }
     54 
     55     sp<BufferQueue> mBQ;
     56 };
     57 
     58 struct DummyConsumer : public BnConsumerListener {
     59     virtual void onFrameAvailable() {}
     60     virtual void onBuffersReleased() {}
     61 };
     62 
     63 TEST_F(BufferQueueTest, AcquireBuffer_ExceedsMaxAcquireCount_Fails) {
     64     sp<DummyConsumer> dc(new DummyConsumer);
     65     mBQ->consumerConnect(dc, false);
     66     IGraphicBufferProducer::QueueBufferOutput qbo;
     67     mBQ->connect(NULL, NATIVE_WINDOW_API_CPU, false, &qbo);
     68     mBQ->setBufferCount(4);
     69 
     70     int slot;
     71     sp<Fence> fence;
     72     sp<GraphicBuffer> buf;
     73     IGraphicBufferProducer::QueueBufferInput qbi(0, false, Rect(0, 0, 1, 1),
     74             NATIVE_WINDOW_SCALING_MODE_FREEZE, 0, false, Fence::NO_FENCE);
     75     BufferQueue::BufferItem item;
     76 
     77     for (int i = 0; i < 2; i++) {
     78         ASSERT_EQ(IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION,
     79                 mBQ->dequeueBuffer(&slot, &fence, false, 1, 1, 0,
     80                     GRALLOC_USAGE_SW_READ_OFTEN));
     81         ASSERT_EQ(OK, mBQ->requestBuffer(slot, &buf));
     82         ASSERT_EQ(OK, mBQ->queueBuffer(slot, qbi, &qbo));
     83         ASSERT_EQ(OK, mBQ->acquireBuffer(&item, 0));
     84     }
     85 
     86     ASSERT_EQ(IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION,
     87             mBQ->dequeueBuffer(&slot, &fence, false, 1, 1, 0,
     88                 GRALLOC_USAGE_SW_READ_OFTEN));
     89     ASSERT_EQ(OK, mBQ->requestBuffer(slot, &buf));
     90     ASSERT_EQ(OK, mBQ->queueBuffer(slot, qbi, &qbo));
     91 
     92     // Acquire the third buffer, which should fail.
     93     ASSERT_EQ(INVALID_OPERATION, mBQ->acquireBuffer(&item, 0));
     94 }
     95 
     96 TEST_F(BufferQueueTest, SetMaxAcquiredBufferCountWithIllegalValues_ReturnsError) {
     97     sp<DummyConsumer> dc(new DummyConsumer);
     98     mBQ->consumerConnect(dc, false);
     99 
    100     ASSERT_EQ(BAD_VALUE, mBQ->setMaxAcquiredBufferCount(0));
    101     ASSERT_EQ(BAD_VALUE, mBQ->setMaxAcquiredBufferCount(-3));
    102     ASSERT_EQ(BAD_VALUE, mBQ->setMaxAcquiredBufferCount(
    103             BufferQueue::MAX_MAX_ACQUIRED_BUFFERS+1));
    104     ASSERT_EQ(BAD_VALUE, mBQ->setMaxAcquiredBufferCount(100));
    105 }
    106 
    107 TEST_F(BufferQueueTest, SetMaxAcquiredBufferCountWithLegalValues_Succeeds) {
    108     sp<DummyConsumer> dc(new DummyConsumer);
    109     mBQ->consumerConnect(dc, false);
    110 
    111     ASSERT_EQ(OK, mBQ->setMaxAcquiredBufferCount(1));
    112     ASSERT_EQ(OK, mBQ->setMaxAcquiredBufferCount(2));
    113     ASSERT_EQ(OK, mBQ->setMaxAcquiredBufferCount(
    114             BufferQueue::MAX_MAX_ACQUIRED_BUFFERS));
    115 }
    116 
    117 } // namespace android
    118