BufferQueue_test.cpp revision 2e336496c3b3b78910cf1c496e21dc4909ee32ad 
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
27#include <gui/BufferQueue.h>
28
29namespace android {
30
31class BufferQueueTest : public ::testing::Test {
32protected:
33
34    BufferQueueTest() {}
35
36    virtual void SetUp() {
37        const ::testing::TestInfo* const testInfo =
38            ::testing::UnitTest::GetInstance()->current_test_info();
39        ALOGV("Begin test: %s.%s", testInfo->test_case_name(),
40                testInfo->name());
41
42        mBQ = new BufferQueue();
43    }
44
45    virtual void TearDown() {
46        mBQ.clear();
47
48        const ::testing::TestInfo* const testInfo =
49            ::testing::UnitTest::GetInstance()->current_test_info();
50        ALOGV("End test:   %s.%s", testInfo->test_case_name(),
51                testInfo->name());
52    }
53
54    void GetMinUndequeuedBufferCount(int* bufferCount) {
55        ASSERT_NE((void*)NULL, bufferCount);
56        ASSERT_EQ(OK, mBQ->query(NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, bufferCount));
57        ASSERT_LE(0, *bufferCount); // non-negative
58    }
59
60    sp<BufferQueue> mBQ;
61};
62
63struct DummyConsumer : public BnConsumerListener {
64    virtual void onFrameAvailable() {}
65    virtual void onBuffersReleased() {}
66};
67
68TEST_F(BufferQueueTest, AcquireBuffer_ExceedsMaxAcquireCount_Fails) {
69    sp<DummyConsumer> dc(new DummyConsumer);
70    mBQ->consumerConnect(dc, false);
71    IGraphicBufferProducer::QueueBufferOutput qbo;
72    mBQ->connect(NULL, NATIVE_WINDOW_API_CPU, false, &qbo);
73    mBQ->setBufferCount(4);
74
75    int slot;
76    sp<Fence> fence;
77    sp<GraphicBuffer> buf;
78    IGraphicBufferProducer::QueueBufferInput qbi(0, false, Rect(0, 0, 1, 1),
79            NATIVE_WINDOW_SCALING_MODE_FREEZE, 0, false, Fence::NO_FENCE);
80    BufferQueue::BufferItem item;
81
82    for (int i = 0; i < 2; i++) {
83        ASSERT_EQ(IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION,
84                mBQ->dequeueBuffer(&slot, &fence, false, 1, 1, 0,
85                    GRALLOC_USAGE_SW_READ_OFTEN));
86        ASSERT_EQ(OK, mBQ->requestBuffer(slot, &buf));
87        ASSERT_EQ(OK, mBQ->queueBuffer(slot, qbi, &qbo));
88        ASSERT_EQ(OK, mBQ->acquireBuffer(&item, 0));
89    }
90
91    ASSERT_EQ(IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION,
92            mBQ->dequeueBuffer(&slot, &fence, false, 1, 1, 0,
93                GRALLOC_USAGE_SW_READ_OFTEN));
94    ASSERT_EQ(OK, mBQ->requestBuffer(slot, &buf));
95    ASSERT_EQ(OK, mBQ->queueBuffer(slot, qbi, &qbo));
96
97    // Acquire the third buffer, which should fail.
98    ASSERT_EQ(INVALID_OPERATION, mBQ->acquireBuffer(&item, 0));
99}
100
101TEST_F(BufferQueueTest, SetMaxAcquiredBufferCountWithIllegalValues_ReturnsError) {
102    sp<DummyConsumer> dc(new DummyConsumer);
103    mBQ->consumerConnect(dc, false);
104
105    int minBufferCount;
106    ASSERT_NO_FATAL_FAILURE(GetMinUndequeuedBufferCount(&minBufferCount));
107    EXPECT_EQ(BAD_VALUE, mBQ->setMaxAcquiredBufferCount(minBufferCount - 1));
108
109    EXPECT_EQ(BAD_VALUE, mBQ->setMaxAcquiredBufferCount(0));
110    EXPECT_EQ(BAD_VALUE, mBQ->setMaxAcquiredBufferCount(-3));
111    EXPECT_EQ(BAD_VALUE, mBQ->setMaxAcquiredBufferCount(
112            BufferQueue::MAX_MAX_ACQUIRED_BUFFERS+1));
113    EXPECT_EQ(BAD_VALUE, mBQ->setMaxAcquiredBufferCount(100));
114}
115
116TEST_F(BufferQueueTest, SetMaxAcquiredBufferCountWithLegalValues_Succeeds) {
117    sp<DummyConsumer> dc(new DummyConsumer);
118    mBQ->consumerConnect(dc, false);
119
120    int minBufferCount;
121    ASSERT_NO_FATAL_FAILURE(GetMinUndequeuedBufferCount(&minBufferCount));
122
123    EXPECT_EQ(OK, mBQ->setMaxAcquiredBufferCount(1));
124    EXPECT_EQ(OK, mBQ->setMaxAcquiredBufferCount(2));
125    EXPECT_EQ(OK, mBQ->setMaxAcquiredBufferCount(minBufferCount));
126    EXPECT_EQ(OK, mBQ->setMaxAcquiredBufferCount(
127            BufferQueue::MAX_MAX_ACQUIRED_BUFFERS));
128}
129
130} // namespace android
131