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// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/viz/service/display_embedder/server_shared_bitmap_manager.h"
#include "components/viz/common/resources/resource_sizes.h"
#include "mojo/public/cpp/system/platform_handle.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace viz {
namespace {
class ServerSharedBitmapManagerTest : public testing::Test {
protected:
void SetUp() override {
manager_ = std::make_unique<ServerSharedBitmapManager>();
}
void TearDown() override { manager_.reset(); }
ServerSharedBitmapManager* manager() const { return manager_.get(); }
private:
std::unique_ptr<ServerSharedBitmapManager> manager_;
};
TEST_F(ServerSharedBitmapManagerTest, TestCreate) {
gfx::Size bitmap_size(1, 1);
size_t size_in_bytes;
EXPECT_TRUE(
ResourceSizes::MaybeSizeInBytes(bitmap_size, RGBA_8888, &size_in_bytes));
std::unique_ptr<base::SharedMemory> bitmap(new base::SharedMemory());
bitmap->CreateAndMapAnonymous(size_in_bytes);
memset(bitmap->memory(), 0xff, size_in_bytes);
SharedBitmapId id = SharedBitmap::GenerateId();
base::SharedMemoryHandle handle = bitmap->handle().Duplicate();
mojo::ScopedSharedBufferHandle buffer_handle = mojo::WrapSharedMemoryHandle(
handle, size_in_bytes,
mojo::UnwrappedSharedMemoryHandleProtection::kReadWrite);
manager()->ChildAllocatedSharedBitmap(std::move(buffer_handle), id);
std::unique_ptr<SharedBitmap> large_bitmap;
large_bitmap =
manager()->GetSharedBitmapFromId(gfx::Size(1024, 1024), RGBA_8888, id);
EXPECT_TRUE(large_bitmap.get() == nullptr);
std::unique_ptr<SharedBitmap> very_large_bitmap;
very_large_bitmap = manager()->GetSharedBitmapFromId(
gfx::Size(1, (1 << 30) | 1), RGBA_8888, id);
EXPECT_TRUE(very_large_bitmap.get() == nullptr);
std::unique_ptr<SharedBitmap> negative_size_bitmap;
negative_size_bitmap =
manager()->GetSharedBitmapFromId(gfx::Size(-1, 1024), RGBA_8888, id);
EXPECT_TRUE(negative_size_bitmap.get() == nullptr);
SharedBitmapId id2 = SharedBitmap::GenerateId();
std::unique_ptr<SharedBitmap> invalid_bitmap;
invalid_bitmap =
manager()->GetSharedBitmapFromId(bitmap_size, RGBA_8888, id2);
EXPECT_TRUE(invalid_bitmap.get() == nullptr);
std::unique_ptr<SharedBitmap> shared_bitmap;
shared_bitmap = manager()->GetSharedBitmapFromId(bitmap_size, RGBA_8888, id);
ASSERT_TRUE(shared_bitmap.get() != nullptr);
EXPECT_EQ(memcmp(shared_bitmap->pixels(), bitmap->memory(), 4), 0);
std::unique_ptr<SharedBitmap> large_bitmap2;
large_bitmap2 =
manager()->GetSharedBitmapFromId(gfx::Size(1024, 1024), RGBA_8888, id);
EXPECT_TRUE(large_bitmap2.get() == nullptr);
std::unique_ptr<SharedBitmap> shared_bitmap2;
shared_bitmap2 = manager()->GetSharedBitmapFromId(bitmap_size, RGBA_8888, id);
EXPECT_TRUE(shared_bitmap2->pixels() == shared_bitmap->pixels());
shared_bitmap2.reset();
EXPECT_EQ(memcmp(shared_bitmap->pixels(), bitmap->memory(), size_in_bytes),
0);
manager()->ChildDeletedSharedBitmap(id);
memset(bitmap->memory(), 0, size_in_bytes);
EXPECT_EQ(memcmp(shared_bitmap->pixels(), bitmap->memory(), size_in_bytes),
0);
bitmap.reset();
shared_bitmap.reset();
}
TEST_F(ServerSharedBitmapManagerTest, AddDuplicate) {
gfx::Size bitmap_size(1, 1);
size_t size_in_bytes;
EXPECT_TRUE(
ResourceSizes::MaybeSizeInBytes(bitmap_size, RGBA_8888, &size_in_bytes));
std::unique_ptr<base::SharedMemory> bitmap(new base::SharedMemory());
bitmap->CreateAndMapAnonymous(size_in_bytes);
memset(bitmap->memory(), 0xff, size_in_bytes);
SharedBitmapId id = SharedBitmap::GenerateId();
base::SharedMemoryHandle handle = bitmap->handle().Duplicate();
mojo::ScopedSharedBufferHandle buffer_handle = mojo::WrapSharedMemoryHandle(
handle, size_in_bytes,
mojo::UnwrappedSharedMemoryHandleProtection::kReadWrite);
manager()->ChildAllocatedSharedBitmap(std::move(buffer_handle), id);
std::unique_ptr<base::SharedMemory> bitmap2(new base::SharedMemory());
bitmap2->CreateAndMapAnonymous(size_in_bytes);
memset(bitmap2->memory(), 0x00, size_in_bytes);
base::SharedMemoryHandle handle2 = bitmap->handle().Duplicate();
buffer_handle = mojo::WrapSharedMemoryHandle(
handle2, size_in_bytes,
mojo::UnwrappedSharedMemoryHandleProtection::kReadWrite);
manager()->ChildAllocatedSharedBitmap(std::move(buffer_handle), id);
std::unique_ptr<SharedBitmap> shared_bitmap;
shared_bitmap = manager()->GetSharedBitmapFromId(bitmap_size, RGBA_8888, id);
ASSERT_TRUE(shared_bitmap.get() != nullptr);
EXPECT_EQ(memcmp(shared_bitmap->pixels(), bitmap->memory(), size_in_bytes),
0);
manager()->ChildDeletedSharedBitmap(id);
}
TEST_F(ServerSharedBitmapManagerTest, SharedMemoryHandle) {
gfx::Size bitmap_size(1, 1);
size_t size_in_bytes;
EXPECT_TRUE(
ResourceSizes::MaybeSizeInBytes(bitmap_size, RGBA_8888, &size_in_bytes));
std::unique_ptr<base::SharedMemory> bitmap(new base::SharedMemory());
bitmap->CreateAndMapAnonymous(size_in_bytes);
memset(bitmap->memory(), 0xff, size_in_bytes);
base::UnguessableToken shared_memory_guid = bitmap->handle().GetGUID();
EXPECT_FALSE(shared_memory_guid.is_empty());
SharedBitmapId id = SharedBitmap::GenerateId();
base::SharedMemoryHandle handle = bitmap->handle().Duplicate();
mojo::ScopedSharedBufferHandle buffer_handle = mojo::WrapSharedMemoryHandle(
handle, size_in_bytes,
mojo::UnwrappedSharedMemoryHandleProtection::kReadWrite);
manager()->ChildAllocatedSharedBitmap(std::move(buffer_handle), id);
std::unique_ptr<SharedBitmap> shared_bitmap;
shared_bitmap =
manager()->GetSharedBitmapFromId(gfx::Size(1, 1), RGBA_8888, id);
EXPECT_EQ(shared_bitmap->GetCrossProcessGUID(), shared_memory_guid);
manager()->ChildDeletedSharedBitmap(id);
}
} // namespace
} // namespace viz
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