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replicant-frameworks_native/libs/gui/tests/BufferQueue_test.cpp
Dan Stoza 99b18b447d BufferQueue: Add StreamSplitter 
Adds a StreamSplitter class, that takes one IGraphicBufferConsumer
interface and multiple IGraphicBufferProducer interfaces and
implements a one-to-many broadcast of GraphicBuffers (while managing
fences correctly).

Change-Id: I38ecdf3e311ac521bc781c30dde0cc382a4376a3
2014-04-15 10:34:10 -07:00

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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "BufferQueue_test"
//#define LOG_NDEBUG 0
#include <gui/BufferQueue.h>
#include <gui/IProducerListener.h>
#include <ui/GraphicBuffer.h>
#include <binder/IPCThreadState.h>
#include <binder/IServiceManager.h>
#include <binder/ProcessState.h>
#include <utils/String8.h>
#include <utils/threads.h>
#include <gtest/gtest.h>
namespace android {
class BufferQueueTest : public ::testing::Test {
public:
protected:
BufferQueueTest() {
const ::testing::TestInfo* const testInfo =
::testing::UnitTest::GetInstance()->current_test_info();
ALOGV("Begin test: %s.%s", testInfo->test_case_name(),
testInfo->name());
}
~BufferQueueTest() {
const ::testing::TestInfo* const testInfo =
::testing::UnitTest::GetInstance()->current_test_info();
ALOGV("End test: %s.%s", testInfo->test_case_name(),
testInfo->name());
}
void GetMinUndequeuedBufferCount(int* bufferCount) {
ASSERT_TRUE(bufferCount != NULL);
ASSERT_EQ(OK, mProducer->query(NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS,
bufferCount));
ASSERT_GE(*bufferCount, 0);
}
void createBufferQueue() {
BufferQueue::createBufferQueue(&mProducer, &mConsumer);
}
sp<IGraphicBufferProducer> mProducer;
sp<IGraphicBufferConsumer> mConsumer;
};
struct DummyConsumer : public BnConsumerListener {
virtual void onFrameAvailable() {}
virtual void onBuffersReleased() {}
virtual void onSidebandStreamChanged() {}
};
// XXX: Tests that fork a process to hold the BufferQueue must run before tests
// that use a local BufferQueue, or else Binder will get unhappy
TEST_F(BufferQueueTest, BufferQueueInAnotherProcess) {
const String16 PRODUCER_NAME = String16("BQTestProducer");
const String16 CONSUMER_NAME = String16("BQTestConsumer");
pid_t forkPid = fork();
ASSERT_NE(forkPid, -1);
if (forkPid == 0) {
// Child process
sp<IGraphicBufferProducer> producer;
sp<IGraphicBufferConsumer> consumer;
BufferQueue::createBufferQueue(&producer, &consumer);
sp<IServiceManager> serviceManager = defaultServiceManager();
serviceManager->addService(PRODUCER_NAME, producer->asBinder());
serviceManager->addService(CONSUMER_NAME, consumer->asBinder());
ProcessState::self()->startThreadPool();
IPCThreadState::self()->joinThreadPool();
LOG_ALWAYS_FATAL("Shouldn't be here");
}
sp<IServiceManager> serviceManager = defaultServiceManager();
sp<IBinder> binderProducer =
serviceManager->getService(PRODUCER_NAME);
mProducer = interface_cast<IGraphicBufferProducer>(binderProducer);
EXPECT_TRUE(mProducer != NULL);
sp<IBinder> binderConsumer =
serviceManager->getService(CONSUMER_NAME);
mConsumer = interface_cast<IGraphicBufferConsumer>(binderConsumer);
EXPECT_TRUE(mConsumer != NULL);
sp<DummyConsumer> dc(new DummyConsumer);
ASSERT_EQ(OK, mConsumer->consumerConnect(dc, false));
IGraphicBufferProducer::QueueBufferOutput output;
ASSERT_EQ(OK,
mProducer->connect(NULL, NATIVE_WINDOW_API_CPU, false, &output));
int slot;
sp<Fence> fence;
sp<GraphicBuffer> buffer;
ASSERT_EQ(IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION,
mProducer->dequeueBuffer(&slot, &fence, false, 0, 0, 0,
GRALLOC_USAGE_SW_WRITE_OFTEN));
ASSERT_EQ(OK, mProducer->requestBuffer(slot, &buffer));
uint32_t* dataIn;
ASSERT_EQ(OK, buffer->lock(GraphicBuffer::USAGE_SW_WRITE_OFTEN,
reinterpret_cast<void**>(&dataIn)));
*dataIn = 0x12345678;
ASSERT_EQ(OK, buffer->unlock());
IGraphicBufferProducer::QueueBufferInput input(0, false, Rect(0, 0, 1, 1),
NATIVE_WINDOW_SCALING_MODE_FREEZE, 0, false, Fence::NO_FENCE);
ASSERT_EQ(OK, mProducer->queueBuffer(slot, input, &output));
IGraphicBufferConsumer::BufferItem item;
ASSERT_EQ(OK, mConsumer->acquireBuffer(&item, 0));
uint32_t* dataOut;
ASSERT_EQ(OK, item.mGraphicBuffer->lock(GraphicBuffer::USAGE_SW_READ_OFTEN,
reinterpret_cast<void**>(&dataOut)));
ASSERT_EQ(*dataOut, 0x12345678);
ASSERT_EQ(OK, item.mGraphicBuffer->unlock());
}
TEST_F(BufferQueueTest, AcquireBuffer_ExceedsMaxAcquireCount_Fails) {
createBufferQueue();
sp<DummyConsumer> dc(new DummyConsumer);
mConsumer->consumerConnect(dc, false);
IGraphicBufferProducer::QueueBufferOutput qbo;
mProducer->connect(new DummyProducerListener, NATIVE_WINDOW_API_CPU, false,
&qbo);
mProducer->setBufferCount(4);
int slot;
sp<Fence> fence;
sp<GraphicBuffer> buf;
IGraphicBufferProducer::QueueBufferInput qbi(0, false, Rect(0, 0, 1, 1),
NATIVE_WINDOW_SCALING_MODE_FREEZE, 0, false, Fence::NO_FENCE);
BufferQueue::BufferItem item;
for (int i = 0; i < 2; i++) {
ASSERT_EQ(IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION,
mProducer->dequeueBuffer(&slot, &fence, false, 1, 1, 0,
GRALLOC_USAGE_SW_READ_OFTEN));
ASSERT_EQ(OK, mProducer->requestBuffer(slot, &buf));
ASSERT_EQ(OK, mProducer->queueBuffer(slot, qbi, &qbo));
ASSERT_EQ(OK, mConsumer->acquireBuffer(&item, 0));
}
ASSERT_EQ(IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION,
mProducer->dequeueBuffer(&slot, &fence, false, 1, 1, 0,
GRALLOC_USAGE_SW_READ_OFTEN));
ASSERT_EQ(OK, mProducer->requestBuffer(slot, &buf));
ASSERT_EQ(OK, mProducer->queueBuffer(slot, qbi, &qbo));
// Acquire the third buffer, which should fail.
ASSERT_EQ(INVALID_OPERATION, mConsumer->acquireBuffer(&item, 0));
}
TEST_F(BufferQueueTest, SetMaxAcquiredBufferCountWithIllegalValues_ReturnsError) {
createBufferQueue();
sp<DummyConsumer> dc(new DummyConsumer);
mConsumer->consumerConnect(dc, false);
int minBufferCount;
ASSERT_NO_FATAL_FAILURE(GetMinUndequeuedBufferCount(&minBufferCount));
EXPECT_EQ(BAD_VALUE, mConsumer->setMaxAcquiredBufferCount(
minBufferCount - 1));
EXPECT_EQ(BAD_VALUE, mConsumer->setMaxAcquiredBufferCount(0));
EXPECT_EQ(BAD_VALUE, mConsumer->setMaxAcquiredBufferCount(-3));
EXPECT_EQ(BAD_VALUE, mConsumer->setMaxAcquiredBufferCount(
BufferQueue::MAX_MAX_ACQUIRED_BUFFERS+1));
EXPECT_EQ(BAD_VALUE, mConsumer->setMaxAcquiredBufferCount(100));
}
TEST_F(BufferQueueTest, SetMaxAcquiredBufferCountWithLegalValues_Succeeds) {
createBufferQueue();
sp<DummyConsumer> dc(new DummyConsumer);
mConsumer->consumerConnect(dc, false);
int minBufferCount;
ASSERT_NO_FATAL_FAILURE(GetMinUndequeuedBufferCount(&minBufferCount));
EXPECT_EQ(OK, mConsumer->setMaxAcquiredBufferCount(1));
EXPECT_EQ(OK, mConsumer->setMaxAcquiredBufferCount(2));
EXPECT_EQ(OK, mConsumer->setMaxAcquiredBufferCount(minBufferCount));
EXPECT_EQ(OK, mConsumer->setMaxAcquiredBufferCount(
BufferQueue::MAX_MAX_ACQUIRED_BUFFERS));
}
TEST_F(BufferQueueTest, DetachAndReattachOnProducerSide) {
createBufferQueue();
sp<DummyConsumer> dc(new DummyConsumer);
ASSERT_EQ(OK, mConsumer->consumerConnect(dc, false));
IGraphicBufferProducer::QueueBufferOutput output;
ASSERT_EQ(OK, mProducer->connect(new DummyProducerListener,
NATIVE_WINDOW_API_CPU, false, &output));
ASSERT_EQ(BAD_VALUE, mProducer->detachBuffer(-1)); // Index too low
ASSERT_EQ(BAD_VALUE, mProducer->detachBuffer(
BufferQueueDefs::NUM_BUFFER_SLOTS)); // Index too high
ASSERT_EQ(BAD_VALUE, mProducer->detachBuffer(0)); // Not dequeued
int slot;
sp<Fence> fence;
sp<GraphicBuffer> buffer;
ASSERT_EQ(IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION,
mProducer->dequeueBuffer(&slot, &fence, false, 0, 0, 0,
GRALLOC_USAGE_SW_WRITE_OFTEN));
ASSERT_EQ(BAD_VALUE, mProducer->detachBuffer(slot)); // Not requested
ASSERT_EQ(OK, mProducer->requestBuffer(slot, &buffer));
ASSERT_EQ(OK, mProducer->detachBuffer(slot));
ASSERT_EQ(BAD_VALUE, mProducer->detachBuffer(slot)); // Not dequeued
sp<GraphicBuffer> safeToClobberBuffer;
// Can no longer request buffer from this slot
ASSERT_EQ(BAD_VALUE, mProducer->requestBuffer(slot, &safeToClobberBuffer));
uint32_t* dataIn;
ASSERT_EQ(OK, buffer->lock(GraphicBuffer::USAGE_SW_WRITE_OFTEN,
reinterpret_cast<void**>(&dataIn)));
*dataIn = 0x12345678;
ASSERT_EQ(OK, buffer->unlock());
int newSlot;
ASSERT_EQ(BAD_VALUE, mProducer->attachBuffer(NULL, safeToClobberBuffer));
ASSERT_EQ(BAD_VALUE, mProducer->attachBuffer(&newSlot, NULL));
ASSERT_EQ(OK, mProducer->attachBuffer(&newSlot, buffer));
IGraphicBufferProducer::QueueBufferInput input(0, false, Rect(0, 0, 1, 1),
NATIVE_WINDOW_SCALING_MODE_FREEZE, 0, false, Fence::NO_FENCE);
ASSERT_EQ(OK, mProducer->queueBuffer(newSlot, input, &output));
IGraphicBufferConsumer::BufferItem item;
ASSERT_EQ(OK, mConsumer->acquireBuffer(&item, static_cast<nsecs_t>(0)));
uint32_t* dataOut;
ASSERT_EQ(OK, item.mGraphicBuffer->lock(GraphicBuffer::USAGE_SW_READ_OFTEN,
reinterpret_cast<void**>(&dataOut)));
ASSERT_EQ(*dataOut, 0x12345678);
ASSERT_EQ(OK, item.mGraphicBuffer->unlock());
}
TEST_F(BufferQueueTest, DetachAndReattachOnConsumerSide) {
createBufferQueue();
sp<DummyConsumer> dc(new DummyConsumer);
ASSERT_EQ(OK, mConsumer->consumerConnect(dc, false));
IGraphicBufferProducer::QueueBufferOutput output;
ASSERT_EQ(OK, mProducer->connect(new DummyProducerListener,
NATIVE_WINDOW_API_CPU, false, &output));
int slot;
sp<Fence> fence;
sp<GraphicBuffer> buffer;
ASSERT_EQ(IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION,
mProducer->dequeueBuffer(&slot, &fence, false, 0, 0, 0,
GRALLOC_USAGE_SW_WRITE_OFTEN));
ASSERT_EQ(OK, mProducer->requestBuffer(slot, &buffer));
IGraphicBufferProducer::QueueBufferInput input(0, false, Rect(0, 0, 1, 1),
NATIVE_WINDOW_SCALING_MODE_FREEZE, 0, false, Fence::NO_FENCE);
ASSERT_EQ(OK, mProducer->queueBuffer(slot, input, &output));
ASSERT_EQ(BAD_VALUE, mConsumer->detachBuffer(-1)); // Index too low
ASSERT_EQ(BAD_VALUE, mConsumer->detachBuffer(
BufferQueueDefs::NUM_BUFFER_SLOTS)); // Index too high
ASSERT_EQ(BAD_VALUE, mConsumer->detachBuffer(0)); // Not acquired
IGraphicBufferConsumer::BufferItem item;
ASSERT_EQ(OK, mConsumer->acquireBuffer(&item, static_cast<nsecs_t>(0)));
ASSERT_EQ(OK, mConsumer->detachBuffer(item.mBuf));
ASSERT_EQ(BAD_VALUE, mConsumer->detachBuffer(item.mBuf)); // Not acquired
uint32_t* dataIn;
ASSERT_EQ(OK, item.mGraphicBuffer->lock(
GraphicBuffer::USAGE_SW_WRITE_OFTEN,
reinterpret_cast<void**>(&dataIn)));
*dataIn = 0x12345678;
ASSERT_EQ(OK, item.mGraphicBuffer->unlock());
int newSlot;
sp<GraphicBuffer> safeToClobberBuffer;
ASSERT_EQ(BAD_VALUE, mConsumer->attachBuffer(NULL, safeToClobberBuffer));
ASSERT_EQ(BAD_VALUE, mConsumer->attachBuffer(&newSlot, NULL));
ASSERT_EQ(OK, mConsumer->attachBuffer(&newSlot, item.mGraphicBuffer));
ASSERT_EQ(OK, mConsumer->releaseBuffer(newSlot, 0, EGL_NO_DISPLAY,
EGL_NO_SYNC_KHR, Fence::NO_FENCE));
ASSERT_EQ(IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION,
mProducer->dequeueBuffer(&slot, &fence, false, 0, 0, 0,
GRALLOC_USAGE_SW_WRITE_OFTEN));
ASSERT_EQ(OK, mProducer->requestBuffer(slot, &buffer));
uint32_t* dataOut;
ASSERT_EQ(OK, buffer->lock(GraphicBuffer::USAGE_SW_READ_OFTEN,
reinterpret_cast<void**>(&dataOut)));
ASSERT_EQ(*dataOut, 0x12345678);
ASSERT_EQ(OK, buffer->unlock());
}
TEST_F(BufferQueueTest, MoveFromConsumerToProducer) {
createBufferQueue();
sp<DummyConsumer> dc(new DummyConsumer);
ASSERT_EQ(OK, mConsumer->consumerConnect(dc, false));
IGraphicBufferProducer::QueueBufferOutput output;
ASSERT_EQ(OK, mProducer->connect(new DummyProducerListener,
NATIVE_WINDOW_API_CPU, false, &output));
int slot;
sp<Fence> fence;
sp<GraphicBuffer> buffer;
ASSERT_EQ(IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION,
mProducer->dequeueBuffer(&slot, &fence, false, 0, 0, 0,
GRALLOC_USAGE_SW_WRITE_OFTEN));
ASSERT_EQ(OK, mProducer->requestBuffer(slot, &buffer));
uint32_t* dataIn;
ASSERT_EQ(OK, buffer->lock(GraphicBuffer::USAGE_SW_WRITE_OFTEN,
reinterpret_cast<void**>(&dataIn)));
*dataIn = 0x12345678;
ASSERT_EQ(OK, buffer->unlock());
IGraphicBufferProducer::QueueBufferInput input(0, false, Rect(0, 0, 1, 1),
NATIVE_WINDOW_SCALING_MODE_FREEZE, 0, false, Fence::NO_FENCE);
ASSERT_EQ(OK, mProducer->queueBuffer(slot, input, &output));
IGraphicBufferConsumer::BufferItem item;
ASSERT_EQ(OK, mConsumer->acquireBuffer(&item, static_cast<nsecs_t>(0)));
ASSERT_EQ(OK, mConsumer->detachBuffer(item.mBuf));
int newSlot;
ASSERT_EQ(OK, mProducer->attachBuffer(&newSlot, item.mGraphicBuffer));
ASSERT_EQ(OK, mProducer->queueBuffer(newSlot, input, &output));
ASSERT_EQ(OK, mConsumer->acquireBuffer(&item, static_cast<nsecs_t>(0)));
uint32_t* dataOut;
ASSERT_EQ(OK, item.mGraphicBuffer->lock(GraphicBuffer::USAGE_SW_READ_OFTEN,
reinterpret_cast<void**>(&dataOut)));
ASSERT_EQ(*dataOut, 0x12345678);
ASSERT_EQ(OK, item.mGraphicBuffer->unlock());
}
} // namespace android
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