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/*
* Copyright (C) 2017 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 "BufferItemConsumer_test"
//#define LOG_NDEBUG 0
#include <gtest/gtest.h>
#include <gui/BufferItemConsumer.h>
#include <gui/IProducerListener.h>
#include <gui/Surface.h>
namespace android {
static constexpr int kWidth = 100;
static constexpr int kHeight = 100;
static constexpr int kMaxLockedBuffers = 3;
static constexpr int kFormat = HAL_PIXEL_FORMAT_RGBA_8888;
static constexpr int kFrameSleepUs = 30 * 1000;
class BufferItemConsumerTest : public ::testing::Test {
protected:
struct BufferFreedListener
: public BufferItemConsumer::BufferFreedListener {
explicit BufferFreedListener(BufferItemConsumerTest* test)
: mTest(test) {}
void onBufferFreed(const wp<GraphicBuffer>& /* gBuffer */) override {
mTest->HandleBufferFreed();
}
BufferItemConsumerTest* mTest;
};
void SetUp() override {
BufferQueue::createBufferQueue(&mProducer, &mConsumer);
mBIC =
new BufferItemConsumer(mConsumer, kFormat, kMaxLockedBuffers, true);
String8 name("BufferItemConsumer_Under_Test");
mBIC->setName(name);
mBFL = new BufferFreedListener(this);
mBIC->setBufferFreedListener(mBFL);
sp<IProducerListener> producerListener = new StubProducerListener();
IGraphicBufferProducer::QueueBufferOutput bufferOutput;
ASSERT_EQ(NO_ERROR,
mProducer->connect(producerListener, NATIVE_WINDOW_API_CPU,
true, &bufferOutput));
ASSERT_EQ(NO_ERROR,
mProducer->setMaxDequeuedBufferCount(kMaxLockedBuffers));
}
int GetFreedBufferCount() {
std::lock_guard<std::mutex> lock(mMutex);
return mFreedBufferCount;
}
void HandleBufferFreed() {
std::lock_guard<std::mutex> lock(mMutex);
mFreedBufferCount++;
ALOGV("HandleBufferFreed, mFreedBufferCount=%d", mFreedBufferCount);
}
void DequeueBuffer(int* outSlot) {
ASSERT_NE(outSlot, nullptr);
int slot;
sp<Fence> outFence;
status_t ret = mProducer->dequeueBuffer(&slot, &outFence, kWidth, kHeight, 0, 0,
nullptr, nullptr);
ASSERT_GE(ret, 0);
ALOGV("dequeueBuffer: slot=%d", slot);
if (ret & IGraphicBufferProducer::BUFFER_NEEDS_REALLOCATION) {
ret = mProducer->requestBuffer(slot, &mBuffers[slot]);
ASSERT_EQ(NO_ERROR, ret);
}
*outSlot = slot;
}
void QueueBuffer(int slot) {
ALOGV("enqueueBuffer: slot=%d", slot);
IGraphicBufferProducer::QueueBufferInput bufferInput(
0ULL, true, HAL_DATASPACE_UNKNOWN, Rect::INVALID_RECT,
NATIVE_WINDOW_SCALING_MODE_FREEZE, 0, Fence::NO_FENCE);
IGraphicBufferProducer::QueueBufferOutput bufferOutput;
status_t ret = mProducer->queueBuffer(slot, bufferInput, &bufferOutput);
ASSERT_EQ(NO_ERROR, ret);
}
void AcquireBuffer(int* outSlot) {
ASSERT_NE(outSlot, nullptr);
BufferItem buffer;
status_t ret = mBIC->acquireBuffer(&buffer, 0, false);
ASSERT_EQ(NO_ERROR, ret);
ALOGV("acquireBuffer: slot=%d", buffer.mSlot);
*outSlot = buffer.mSlot;
}
void ReleaseBuffer(int slot) {
ALOGV("releaseBuffer: slot=%d", slot);
BufferItem buffer;
buffer.mSlot = slot;
buffer.mGraphicBuffer = mBuffers[slot];
status_t ret = mBIC->releaseBuffer(buffer, Fence::NO_FENCE);
ASSERT_EQ(NO_ERROR, ret);
}
std::mutex mMutex;
int mFreedBufferCount{0};
sp<BufferItemConsumer> mBIC;
sp<BufferFreedListener> mBFL;
sp<IGraphicBufferProducer> mProducer;
sp<IGraphicBufferConsumer> mConsumer;
sp<GraphicBuffer> mBuffers[BufferQueueDefs::NUM_BUFFER_SLOTS];
};
// Test that detaching buffer from consumer side triggers onBufferFreed.
TEST_F(BufferItemConsumerTest, TriggerBufferFreed_DetachBufferFromConsumer) {
int slot;
// Producer: generate a placeholder buffer.
DequeueBuffer(&slot);
QueueBuffer(slot);
ASSERT_EQ(0, GetFreedBufferCount());
// Consumer: acquire the buffer and then detach it.
AcquireBuffer(&slot);
status_t ret = mBIC->detachBuffer(slot);
ASSERT_EQ(NO_ERROR, ret);
// Sleep to give some time for callbacks to happen.
usleep(kFrameSleepUs);
ASSERT_EQ(1, GetFreedBufferCount());
}
// Test that detaching buffer from producer side triggers onBufferFreed.
TEST_F(BufferItemConsumerTest, TriggerBufferFreed_DetachBufferFromProducer) {
int slot;
// Let buffer go through the cycle at least once.
DequeueBuffer(&slot);
QueueBuffer(slot);
AcquireBuffer(&slot);
ReleaseBuffer(slot);
ASSERT_EQ(0, GetFreedBufferCount());
// Producer: generate the buffer again.
DequeueBuffer(&slot);
// Producer: detach the buffer.
status_t ret = mProducer->detachBuffer(slot);
ASSERT_EQ(NO_ERROR, ret);
// Sleep to give some time for callbacks to happen.
usleep(kFrameSleepUs);
ASSERT_EQ(1, GetFreedBufferCount());
}
// Test that abandoning BufferItemConsumer triggers onBufferFreed.
TEST_F(BufferItemConsumerTest, TriggerBufferFreed_AbandonBufferItemConsumer) {
int slot;
// Let buffer go through the cycle at least once.
DequeueBuffer(&slot);
QueueBuffer(slot);
AcquireBuffer(&slot);
ReleaseBuffer(slot);
// Abandon the BufferItemConsumer.
mBIC->abandon();
// Sleep to give some time for callbacks to happen.
usleep(kFrameSleepUs);
ASSERT_EQ(1, GetFreedBufferCount());
}
// Test that delete BufferItemConsumer triggers onBufferFreed.
TEST_F(BufferItemConsumerTest, TriggerBufferFreed_DeleteBufferItemConsumer) {
int slot;
// Let buffer go through the cycle at least once.
DequeueBuffer(&slot);
QueueBuffer(slot);
AcquireBuffer(&slot);
ReleaseBuffer(slot);
// Delete the BufferItemConsumer.
mBIC.clear();
// Sleep to give some time for callbacks to happen.
usleep(kFrameSleepUs);
ASSERT_EQ(1, GetFreedBufferCount());
}
} // namespace android
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