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/*
* Copyright 2018 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 "GraphicBufferTest"
#include <ui/GraphicBuffer.h>
#include <gtest/gtest.h>
namespace android {
namespace {
constexpr uint32_t kTestWidth = 1024;
constexpr uint32_t kTestHeight = 1;
constexpr uint32_t kTestLayerCount = 1;
constexpr uint64_t kTestUsage = GraphicBuffer::USAGE_SW_WRITE_OFTEN;
} // namespace
class GraphicBufferTest : public testing::Test {};
TEST_F(GraphicBufferTest, AllocateNoError) {
PixelFormat format = PIXEL_FORMAT_RGBA_8888;
sp<GraphicBuffer> gb(new GraphicBuffer(kTestWidth, kTestHeight, format, kTestLayerCount,
kTestUsage, std::string("test")));
ASSERT_EQ(NO_ERROR, gb->initCheck());
}
TEST_F(GraphicBufferTest, AllocateBadDimensions) {
PixelFormat format = PIXEL_FORMAT_RGBA_8888;
if (std::numeric_limits<size_t>::max() / std::numeric_limits<uint32_t>::max() /
bytesPerPixel(format) >=
std::numeric_limits<uint32_t>::max()) {
GTEST_SUCCEED() << "Cannot overflow with this format";
}
uint32_t width, height;
width = height = std::numeric_limits<uint32_t>::max();
sp<GraphicBuffer> gb(new GraphicBuffer(width, height, format, kTestLayerCount, kTestUsage,
std::string("test")));
ASSERT_EQ(BAD_VALUE, gb->initCheck());
const size_t targetArea = std::numeric_limits<size_t>::max() / bytesPerPixel(format);
const size_t widthCandidate = targetArea / std::numeric_limits<uint32_t>::max();
if (widthCandidate == 0) {
width = 1;
} else {
width = std::numeric_limits<uint32_t>::max();
}
height = (targetArea / width) + 1;
sp<GraphicBuffer> gb2(new GraphicBuffer(width, height, format, kTestLayerCount, kTestUsage,
std::string("test")));
ASSERT_EQ(BAD_VALUE, gb2->initCheck());
}
} // namespace android
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