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// Copyright 2021 The libgav1 Authors
//
// 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.
#include "src/utils/block_parameters_holder.h"
#include "gtest/gtest.h"
#include "src/utils/constants.h"
#include "src/utils/types.h"
namespace libgav1 {
namespace {
TEST(BlockParametersHolder, TestBasic) {
BlockParametersHolder holder;
ASSERT_TRUE(holder.Reset(20, 20));
// Get a BlockParameters object.
BlockParameters* const bp1 = holder.Get(10, 10, kBlock32x32);
ASSERT_NE(bp1, nullptr);
// Ensure that cache was filled appropriately. From (10, 10) to (17, 17)
// should be bp1 (10 + 4x4 width/height of 32x32 block is 18).
for (int i = 10; i < 18; ++i) {
for (int j = 10; j < 18; ++j) {
EXPECT_EQ(holder.Find(i, j), bp1)
<< "Mismatch in (" << i << ", " << j << ")";
}
}
// Get the maximum number of BlockParameters objects.
for (int i = 0; i < 399; ++i) {
EXPECT_NE(holder.Get(10, 10, kBlock32x32), nullptr)
<< "Mismatch in index " << i;
}
// Get() should now return nullptr since there are no more BlockParameters
// objects available.
EXPECT_EQ(holder.Get(10, 10, kBlock32x32), nullptr);
// Reset the holder to the same size.
ASSERT_TRUE(holder.Reset(20, 20));
// Get a BlockParameters object. This should be the same as bp1 since the
// holder was Reset to the same size.
BlockParameters* const bp2 = holder.Get(10, 10, kBlock32x32);
EXPECT_EQ(bp2, bp1);
// Reset the holder to a smaller size.
ASSERT_TRUE(holder.Reset(20, 10));
// Get a BlockParameters object. This should be the same as bp1 since the
// holder was Reset to a smaller size.
BlockParameters* const bp3 = holder.Get(0, 0, kBlock32x32);
EXPECT_EQ(bp3, bp1);
// Reset the holder to a larger size.
ASSERT_TRUE(holder.Reset(30, 30));
// Get a BlockParameters object. This may or may not be the same as bp1 since
// the holder was Reset to a larger size.
BlockParameters* const bp4 = holder.Get(0, 0, kBlock32x32);
EXPECT_NE(bp4, nullptr);
}
} // namespace
} // namespace libgav1
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