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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "gpu/command_buffer/client/client_discardable_manager.h"
#include "gpu/command_buffer/client/client_discardable_texture_manager.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace gpu {
namespace {
class FakeCommandBuffer : public CommandBuffer {
public:
FakeCommandBuffer() = default;
~FakeCommandBuffer() override { EXPECT_TRUE(active_ids_.empty()); }
// Overridden from CommandBuffer:
State GetLastState() override { NOTREACHED(); }
void Flush(int32_t put_offset) override { NOTREACHED(); }
void OrderingBarrier(int32_t put_offset) override { NOTREACHED(); }
State WaitForTokenInRange(int32_t start, int32_t end) override {
NOTREACHED();
}
State WaitForGetOffsetInRange(uint32_t set_get_buffer_count,
int32_t start,
int32_t end) override {
NOTREACHED();
}
void SetGetBuffer(int32_t transfer_buffer_id) override { NOTREACHED(); }
scoped_refptr<gpu::Buffer> CreateTransferBuffer(
uint32_t size,
int32_t* id,
uint32_t alignment = 0,
TransferBufferAllocationOption option =
TransferBufferAllocationOption::kLoseContextOnOOM) override {
*id = next_id_++;
active_ids_.insert(*id);
return MakeMemoryBuffer(size, alignment);
}
void DestroyTransferBuffer(int32_t id) override {
size_t erased_elements = active_ids_.erase(id);
EXPECT_TRUE(erased_elements > 0);
}
void ForceLostContext(error::ContextLostReason reason) override {
// No-op; doesn't need to be exercised here.
}
private:
int32_t next_id_ = 1;
std::set<int32_t> active_ids_;
};
void UnlockClientHandleForTesting(
const ClientDiscardableHandle& client_handle) {
ServiceDiscardableHandle service_handle(client_handle.BufferForTesting(),
client_handle.byte_offset(),
client_handle.shm_id());
service_handle.Unlock();
}
bool DeleteClientHandleForTesting(
const ClientDiscardableHandle& client_handle) {
ServiceDiscardableHandle service_handle(client_handle.BufferForTesting(),
client_handle.byte_offset(),
client_handle.shm_id());
return service_handle.Delete();
}
void UnlockAndDeleteClientHandleForTesting(
const ClientDiscardableHandle& client_handle) {
UnlockClientHandleForTesting(client_handle);
EXPECT_TRUE(DeleteClientHandleForTesting(client_handle));
}
} // namespace
TEST(ClientDiscardableManagerTest, BasicUsage) {
FakeCommandBuffer command_buffer;
ClientDiscardableManager manager;
ClientDiscardableHandle::Id handle_id = manager.CreateHandle(&command_buffer);
ClientDiscardableHandle handle = manager.GetHandle(handle_id);
EXPECT_TRUE(handle.IsLockedForTesting());
EXPECT_EQ(handle.shm_id(), 1);
EXPECT_FALSE(DeleteClientHandleForTesting(handle));
UnlockClientHandleForTesting(handle);
manager.LockHandle(handle_id);
EXPECT_FALSE(DeleteClientHandleForTesting(handle));
UnlockAndDeleteClientHandleForTesting(handle);
manager.FreeHandle(handle_id);
manager.CheckPendingForTesting(&command_buffer);
}
TEST(ClientDiscardableManagerTest, Reuse) {
FakeCommandBuffer command_buffer;
ClientDiscardableManager manager;
manager.SetElementCountForTesting(1024);
std::vector<ClientDiscardableHandle::Id> handle_ids;
for (int i = 0; i < 1024; ++i) {
ClientDiscardableHandle::Id handle_id =
manager.CreateHandle(&command_buffer);
ClientDiscardableHandle handle = manager.GetHandle(handle_id);
EXPECT_TRUE(handle.IsLockedForTesting());
EXPECT_EQ(handle.shm_id(), 1);
UnlockClientHandleForTesting(handle);
handle_ids.push_back(handle_id);
}
// Delete every other entry.
for (auto it = handle_ids.begin(); it != handle_ids.end();) {
DeleteClientHandleForTesting(manager.GetHandle(*it));
manager.FreeHandle(*it);
it = handle_ids.erase(it);
++it;
}
// Allocate 512 more entries, ensure we re-use the original buffer.
for (int i = 0; i < 512; ++i) {
ClientDiscardableHandle::Id handle_id =
manager.CreateHandle(&command_buffer);
ClientDiscardableHandle handle = manager.GetHandle(handle_id);
EXPECT_TRUE(handle.IsLockedForTesting());
EXPECT_EQ(handle.shm_id(), 1);
UnlockClientHandleForTesting(handle);
handle_ids.push_back(handle_id);
}
// Delete all outstanding allocations
for (const auto& handle_id : handle_ids) {
DeleteClientHandleForTesting(manager.GetHandle(handle_id));
manager.FreeHandle(handle_id);
}
manager.CheckPendingForTesting(&command_buffer);
}
TEST(ClientDiscardableManagerTest, MultipleAllocations) {
FakeCommandBuffer command_buffer;
ClientDiscardableManager manager;
manager.SetElementCountForTesting(1024);
std::vector<ClientDiscardableHandle::Id> handle_ids;
for (int i = 1; i <= 1024; ++i) {
ClientDiscardableHandle::Id handle_id =
manager.CreateHandle(&command_buffer);
ClientDiscardableHandle handle = manager.GetHandle(handle_id);
EXPECT_TRUE(handle.IsLockedForTesting());
EXPECT_EQ(handle.shm_id(), 1);
UnlockClientHandleForTesting(handle);
handle_ids.push_back(handle_id);
}
// Allocate and free one entry multiple times, this should cause the
// allocation and release of a new shm_id each time.
for (int i = 1; i < 10; ++i) {
ClientDiscardableHandle::Id handle_id =
manager.CreateHandle(&command_buffer);
ClientDiscardableHandle handle = manager.GetHandle(handle_id);
EXPECT_TRUE(handle.IsLockedForTesting());
EXPECT_EQ(handle.shm_id(), i + 1);
UnlockAndDeleteClientHandleForTesting(handle);
manager.FreeHandle(handle_id);
}
// Delete all outstanding allocations
for (const auto& handle_id : handle_ids) {
DeleteClientHandleForTesting(manager.GetHandle(handle_id));
manager.FreeHandle(handle_id);
}
manager.CheckPendingForTesting(&command_buffer);
}
TEST(ClientDiscardableManagerTest, FreeDeleted) {
FakeCommandBuffer command_buffer;
ClientDiscardableManager manager;
manager.SetElementCountForTesting(4);
// Track seen IDs, we should never see an ID again, even when re-using a
// handle.
std::set<ClientDiscardableHandle::Id> seen_ids;
// Fill our allocation with unlocked handles.
std::vector<ClientDiscardableHandle::Id> handle_ids;
for (int i = 0; i < 4; ++i) {
ClientDiscardableHandle::Id handle_id =
manager.CreateHandle(&command_buffer);
EXPECT_EQ(0u, seen_ids.count(handle_id));
seen_ids.insert(handle_id);
ClientDiscardableHandle handle = manager.GetHandle(handle_id);
EXPECT_TRUE(handle.IsLockedForTesting());
EXPECT_EQ(handle.shm_id(), 1);
UnlockClientHandleForTesting(handle);
handle_ids.push_back(handle_id);
}
// Allocate and free a new entry. It should get a new allocation.
{
ClientDiscardableHandle::Id handle_id =
manager.CreateHandle(&command_buffer);
EXPECT_EQ(0u, seen_ids.count(handle_id));
seen_ids.insert(handle_id);
ClientDiscardableHandle handle = manager.GetHandle(handle_id);
EXPECT_TRUE(handle.IsLockedForTesting());
EXPECT_EQ(handle.shm_id(), 2);
UnlockAndDeleteClientHandleForTesting(handle);
manager.FreeHandle(handle_id);
}
// Delete (but don't free) one of the above entries.
DeleteClientHandleForTesting(manager.GetHandle(handle_ids[0]));
// Allocate and free a new entry, it should re-use the first allocation.
{
ClientDiscardableHandle::Id handle_id =
manager.CreateHandle(&command_buffer);
EXPECT_EQ(0u, seen_ids.count(handle_id));
seen_ids.insert(handle_id);
ClientDiscardableHandle handle = manager.GetHandle(handle_id);
EXPECT_TRUE(handle.IsLockedForTesting());
EXPECT_EQ(handle.shm_id(), 1);
UnlockAndDeleteClientHandleForTesting(handle);
manager.FreeHandle(handle_id);
}
// Delete and free the remaining handles.
for (int i = 1; i < 4; ++i) {
DeleteClientHandleForTesting(manager.GetHandle(handle_ids[i]));
manager.FreeHandle(handle_ids[i]);
}
manager.CheckPendingForTesting(&command_buffer);
}
TEST(ClientDiscardableTextureManagerTest, BasicUsage) {
FakeCommandBuffer command_buffer;
ClientDiscardableTextureManager manager;
{
ClientDiscardableHandle handle =
manager.InitializeTexture(&command_buffer, 1);
EXPECT_TRUE(handle.IsLockedForTesting());
EXPECT_EQ(handle.shm_id(), 1);
EXPECT_FALSE(DeleteClientHandleForTesting(handle));
UnlockClientHandleForTesting(handle);
manager.LockTexture(1);
EXPECT_FALSE(DeleteClientHandleForTesting(handle));
UnlockAndDeleteClientHandleForTesting(handle);
}
manager.FreeTexture(1);
manager.DiscardableManagerForTesting()->CheckPendingForTesting(
&command_buffer);
}
} // namespace gpu
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