BufferQueue_test.cpp revision 7ea777f097784492f880623067becac1b276f884 
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
30namespace android {
31
32class BufferQueueTest : public ::testing::Test {
33protected:
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    void GetMinUndequeuedBufferCount(int* bufferCount) {
56        ASSERT_NE((void*)NULL, bufferCount);
57        ASSERT_EQ(OK, mBQ->query(NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, bufferCount));
58        ASSERT_LE(0, *bufferCount); // non-negative
59    }
60
61    sp<BufferQueue> mBQ;
62};
63
64struct DummyConsumer : public BnConsumerListener {
65    virtual void onFrameAvailable() {}
66    virtual void onBuffersReleased() {}
67};
68
69TEST_F(BufferQueueTest, AcquireBuffer_ExceedsMaxAcquireCount_Fails) {
70    sp<DummyConsumer> dc(new DummyConsumer);
71    mBQ->consumerConnect(dc, false);
72    IGraphicBufferProducer::QueueBufferOutput qbo;
73    mBQ->connect(NULL, NATIVE_WINDOW_API_CPU, false, &qbo);
74    mBQ->setBufferCount(4);
75
76    int slot;
77    sp<Fence> fence;
78    sp<GraphicBuffer> buf;
79    IGraphicBufferProducer::QueueBufferInput qbi(0, false, Rect(0, 0, 1, 1),
80            NATIVE_WINDOW_SCALING_MODE_FREEZE, 0, false, Fence::NO_FENCE);
81    BufferQueue::BufferItem item;
82
83    for (int i = 0; i < 2; i++) {
84        ASSERT_EQ(IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION,
85                mBQ->dequeueBuffer(&slot, &fence, false, 1, 1, 0,
86                    GRALLOC_USAGE_SW_READ_OFTEN));
87        ASSERT_EQ(OK, mBQ->requestBuffer(slot, &buf));
88        ASSERT_EQ(OK, mBQ->queueBuffer(slot, qbi, &qbo));
89        ASSERT_EQ(OK, mBQ->acquireBuffer(&item, 0));
90    }
91
92    ASSERT_EQ(IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION,
93            mBQ->dequeueBuffer(&slot, &fence, false, 1, 1, 0,
94                GRALLOC_USAGE_SW_READ_OFTEN));
95    ASSERT_EQ(OK, mBQ->requestBuffer(slot, &buf));
96    ASSERT_EQ(OK, mBQ->queueBuffer(slot, qbi, &qbo));
97
98    // Acquire the third buffer, which should fail.
99    ASSERT_EQ(INVALID_OPERATION, mBQ->acquireBuffer(&item, 0));
100}
101
102TEST_F(BufferQueueTest, SetMaxAcquiredBufferCountWithIllegalValues_ReturnsError) {
103    sp<DummyConsumer> dc(new DummyConsumer);
104    mBQ->consumerConnect(dc, false);
105
106    int minBufferCount;
107    ASSERT_NO_FATAL_FAILURE(GetMinUndequeuedBufferCount(&minBufferCount));
108    EXPECT_EQ(BAD_VALUE, mBQ->setMaxAcquiredBufferCount(minBufferCount - 1));
109
110    EXPECT_EQ(BAD_VALUE, mBQ->setMaxAcquiredBufferCount(0));
111    EXPECT_EQ(BAD_VALUE, mBQ->setMaxAcquiredBufferCount(-3));
112    EXPECT_EQ(BAD_VALUE, mBQ->setMaxAcquiredBufferCount(
113            BufferQueue::MAX_MAX_ACQUIRED_BUFFERS+1));
114    EXPECT_EQ(BAD_VALUE, mBQ->setMaxAcquiredBufferCount(100));
115}
116
117TEST_F(BufferQueueTest, SetMaxAcquiredBufferCountWithLegalValues_Succeeds) {
118    sp<DummyConsumer> dc(new DummyConsumer);
119    mBQ->consumerConnect(dc, false);
120
121    int minBufferCount;
122    ASSERT_NO_FATAL_FAILURE(GetMinUndequeuedBufferCount(&minBufferCount));
123
124    EXPECT_EQ(OK, mBQ->setMaxAcquiredBufferCount(1));
125    EXPECT_EQ(OK, mBQ->setMaxAcquiredBufferCount(2));
126    EXPECT_EQ(OK, mBQ->setMaxAcquiredBufferCount(minBufferCount));
127    EXPECT_EQ(OK, mBQ->setMaxAcquiredBufferCount(
128            BufferQueue::MAX_MAX_ACQUIRED_BUFFERS));
129}
130
131} // namespace android
132