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/*
* Copyright 2021 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.
*/
#undef LOG_TAG
#define LOG_TAG "TexturePoolTest"
#include <compositionengine/impl/planner/TexturePool.h>
#include <gtest/gtest.h>
#include <log/log.h>
#include <renderengine/mock/RenderEngine.h>
namespace android::compositionengine::impl::planner {
namespace {
const ui::Size kDisplaySize(1, 1);
const ui::Size kDisplaySizeTwo(2, 2);
class TestableTexturePool : public TexturePool {
public:
TestableTexturePool(renderengine::RenderEngine& renderEngine) : TexturePool(renderEngine) {}
size_t getMinPoolSize() const { return kMinPoolSize; }
size_t getMaxPoolSize() const { return kMaxPoolSize; }
size_t getPoolSize() const { return mPool.size(); }
};
struct TexturePoolTest : public testing::Test {
TexturePoolTest() {
const ::testing::TestInfo* const test_info =
::testing::UnitTest::GetInstance()->current_test_info();
ALOGD("**** Setting up for %s.%s\n", test_info->test_case_name(), test_info->name());
mTexturePool.setEnabled(true);
mTexturePool.setDisplaySize(kDisplaySize);
}
~TexturePoolTest() {
const ::testing::TestInfo* const test_info =
::testing::UnitTest::GetInstance()->current_test_info();
ALOGD("**** Tearing down after %s.%s\n", test_info->test_case_name(), test_info->name());
}
renderengine::mock::RenderEngine mRenderEngine;
TestableTexturePool mTexturePool = TestableTexturePool(mRenderEngine);
};
TEST_F(TexturePoolTest, preallocatesMinPool) {
EXPECT_EQ(mTexturePool.getMinPoolSize(), mTexturePool.getPoolSize());
}
TEST_F(TexturePoolTest, doesNotAllocateBeyondMinPool) {
for (size_t i = 0; i < mTexturePool.getMinPoolSize() + 1; i++) {
auto texture = mTexturePool.borrowTexture();
}
EXPECT_EQ(mTexturePool.getMinPoolSize(), mTexturePool.getPoolSize());
}
TEST_F(TexturePoolTest, cyclesUpToMaxPoolSize) {
std::unordered_set<uint64_t> bufferIds;
std::deque<std::shared_ptr<TexturePool::AutoTexture>> textures;
for (size_t i = 0; i < mTexturePool.getMaxPoolSize(); i++) {
textures.emplace_back(mTexturePool.borrowTexture());
bufferIds.insert(textures.back()->get()->getBuffer()->getId());
}
EXPECT_EQ(mTexturePool.getMaxPoolSize(), bufferIds.size());
for (size_t i = 0; i < 3; i++) {
textures.pop_front();
textures.emplace_back(mTexturePool.borrowTexture());
bufferIds.insert(textures.back()->get()->getBuffer()->getId());
}
EXPECT_EQ(mTexturePool.getMaxPoolSize(), bufferIds.size());
}
TEST_F(TexturePoolTest, goesPastMaxSizeAndRebounds) {
std::unordered_set<uint64_t> bufferIds;
std::vector<std::shared_ptr<TexturePool::AutoTexture>> textures;
for (size_t i = 0; i < mTexturePool.getMaxPoolSize() + 2; i++) {
textures.emplace_back(mTexturePool.borrowTexture());
bufferIds.insert(textures.back()->get()->getBuffer()->getId());
}
EXPECT_EQ(mTexturePool.getMaxPoolSize() + 2, bufferIds.size());
// Return the textures to the pool.
// Now when we cycle through the pool it's again bounded by max textures.
textures.clear();
std::unordered_set<uint64_t> newBufferIds;
for (size_t i = 0; i < 2 * mTexturePool.getMaxPoolSize(); i++) {
auto texture = mTexturePool.borrowTexture();
newBufferIds.insert(texture->get()->getBuffer()->getId());
}
EXPECT_EQ(mTexturePool.getMaxPoolSize(), newBufferIds.size());
}
TEST_F(TexturePoolTest, reallocatesWhenDisplaySizeChanges) {
auto texture = mTexturePool.borrowTexture();
EXPECT_EQ(kDisplaySize.getWidth(),
static_cast<int32_t>(texture->get()->getBuffer()->getWidth()));
EXPECT_EQ(kDisplaySize.getHeight(),
static_cast<int32_t>(texture->get()->getBuffer()->getHeight()));
mTexturePool.setDisplaySize(kDisplaySizeTwo);
EXPECT_EQ(mTexturePool.getMinPoolSize(), mTexturePool.getPoolSize());
texture.reset();
// When the texture is returned to the pool, the pool now destroys it.
EXPECT_EQ(mTexturePool.getMinPoolSize(), mTexturePool.getPoolSize());
texture = mTexturePool.borrowTexture();
EXPECT_EQ(kDisplaySizeTwo.getWidth(),
static_cast<int32_t>(texture->get()->getBuffer()->getWidth()));
EXPECT_EQ(kDisplaySizeTwo.getHeight(),
static_cast<int32_t>(texture->get()->getBuffer()->getHeight()));
}
TEST_F(TexturePoolTest, freesBuffersWhenDisabled) {
EXPECT_EQ(mTexturePool.getPoolSize(), mTexturePool.getMinPoolSize());
std::deque<std::shared_ptr<TexturePool::AutoTexture>> textures;
for (size_t i = 0; i < mTexturePool.getMinPoolSize() - 1; i++) {
textures.emplace_back(mTexturePool.borrowTexture());
}
EXPECT_EQ(mTexturePool.getPoolSize(), 1u);
mTexturePool.setEnabled(false);
EXPECT_EQ(mTexturePool.getPoolSize(), 0u);
textures.clear();
EXPECT_EQ(mTexturePool.getPoolSize(), 0u);
}
TEST_F(TexturePoolTest, doesNotHoldBuffersWhenDisabled) {
EXPECT_EQ(mTexturePool.getPoolSize(), mTexturePool.getMinPoolSize());
mTexturePool.setEnabled(false);
EXPECT_EQ(mTexturePool.getPoolSize(), 0u);
std::deque<std::shared_ptr<TexturePool::AutoTexture>> textures;
for (size_t i = 0; i < mTexturePool.getMinPoolSize() - 1; i++) {
textures.emplace_back(mTexturePool.borrowTexture());
}
EXPECT_EQ(mTexturePool.getPoolSize(), 0u);
textures.clear();
EXPECT_EQ(mTexturePool.getPoolSize(), 0u);
}
TEST_F(TexturePoolTest, reallocatesWhenReEnabled) {
EXPECT_EQ(mTexturePool.getPoolSize(), mTexturePool.getMinPoolSize());
mTexturePool.setEnabled(false);
EXPECT_EQ(mTexturePool.getPoolSize(), 0u);
mTexturePool.setEnabled(true);
EXPECT_EQ(mTexturePool.getPoolSize(), mTexturePool.getMinPoolSize());
}
} // namespace
} // namespace android::compositionengine::impl::planner
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