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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Tests for the BufferTracker.
#include "gpu/command_buffer/client/buffer_tracker.h"
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#include <stddef.h>
#include <stdint.h>
#include <memory>
#include "gpu/command_buffer/client/client_test_helper.h"
#include "gpu/command_buffer/client/gles2_cmd_helper.h"
#include "gpu/command_buffer/client/mapped_memory.h"
#include "gpu/command_buffer/common/command_buffer.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace gpu {
namespace gles2 {
class MockClientCommandBufferImpl : public MockClientCommandBuffer {
public:
MockClientCommandBufferImpl()
: MockClientCommandBuffer(),
context_lost_(false) {}
~MockClientCommandBufferImpl() override = default;
scoped_refptr<gpu::Buffer> CreateTransferBuffer(
uint32_t size,
int32_t* id,
uint32_t alignment = 0,
TransferBufferAllocationOption option =
TransferBufferAllocationOption::kLoseContextOnOOM) override {
if (context_lost_) {
*id = -1;
return nullptr;
}
return MockClientCommandBuffer::CreateTransferBuffer(size, id, alignment);
}
void set_context_lost(bool context_lost) {
context_lost_ = context_lost;
}
private:
bool context_lost_;
};
class BufferTrackerTest : public testing::Test {
protected:
static const int32_t kNumCommandEntries = 400;
static const int32_t kCommandBufferSizeBytes =
kNumCommandEntries * sizeof(CommandBufferEntry);
void SetUp() override {
command_buffer_ = std::make_unique<MockClientCommandBufferImpl>();
helper_ = std::make_unique<GLES2CmdHelper>(command_buffer_.get());
helper_->Initialize(kCommandBufferSizeBytes);
mapped_memory_ = std::make_unique<MappedMemoryManager>(
helper_.get(), MappedMemoryManager::kNoLimit);
buffer_tracker_ = std::make_unique<BufferTracker>(mapped_memory_.get());
}
void TearDown() override {
buffer_tracker_.reset();
mapped_memory_.reset();
helper_.reset();
command_buffer_.reset();
}
std::unique_ptr<MockClientCommandBufferImpl> command_buffer_;
std::unique_ptr<GLES2CmdHelper> helper_;
std::unique_ptr<MappedMemoryManager> mapped_memory_;
std::unique_ptr<BufferTracker> buffer_tracker_;
};
TEST_F(BufferTrackerTest, Basic) {
const GLuint kId1 = 123;
const GLuint kId2 = 124;
const GLsizeiptr size = 64;
// Check we can create a Buffer.
BufferTracker::Buffer* buffer = buffer_tracker_->CreateBuffer(kId1, size);
ASSERT_TRUE(buffer != nullptr);
// Check we can get the same Buffer.
EXPECT_EQ(buffer, buffer_tracker_->GetBuffer(kId1));
// Check mapped memory address.
EXPECT_TRUE(buffer->address() != nullptr);
// Check shared memory was allocated.
EXPECT_EQ(1lu, mapped_memory_->num_chunks());
// Check we get nothing for a non-existent buffer.
EXPECT_TRUE(buffer_tracker_->GetBuffer(kId2) == nullptr);
// Check we can delete the buffer.
buffer_tracker_->RemoveBuffer(kId1);
// Check shared memory was freed.
mapped_memory_->FreeUnused();
EXPECT_EQ(0lu, mapped_memory_->num_chunks());
// Check we get nothing for a non-existent buffer.
EXPECT_TRUE(buffer_tracker_->GetBuffer(kId1) == nullptr);
}
TEST_F(BufferTrackerTest, ZeroSize) {
const GLuint kId = 123;
// Check we can create a Buffer with zero size.
BufferTracker::Buffer* buffer = buffer_tracker_->CreateBuffer(kId, 0);
ASSERT_TRUE(buffer != nullptr);
// Check mapped memory address.
EXPECT_TRUE(buffer->address() == nullptr);
// Check no shared memory was allocated.
EXPECT_EQ(0lu, mapped_memory_->num_chunks());
// Check we can delete the buffer.
buffer_tracker_->RemoveBuffer(kId);
}
TEST_F(BufferTrackerTest, LostContext) {
const GLuint kId = 123;
const GLsizeiptr size = 64;
command_buffer_->set_context_lost(true);
// Check we can create a Buffer when after losing context.
BufferTracker::Buffer* buffer = buffer_tracker_->CreateBuffer(kId, size);
ASSERT_TRUE(buffer != nullptr);
// Check mapped memory address.
EXPECT_EQ(64u, buffer->size());
// Check mapped memory address.
EXPECT_TRUE(buffer->address() == nullptr);
// Check no shared memory was allocated.
EXPECT_EQ(0lu, mapped_memory_->num_chunks());
// Check we can delete the buffer.
buffer_tracker_->RemoveBuffer(kId);
}
TEST_F(BufferTrackerTest, Unmanage) {
const GLuint kId = 123;
const GLsizeiptr size = 64;
BufferTracker::Buffer* buffer = buffer_tracker_->CreateBuffer(kId, size);
ASSERT_TRUE(buffer != nullptr);
EXPECT_EQ(mapped_memory_->bytes_in_use(), static_cast<size_t>(size));
void* mem = buffer->address();
buffer_tracker_->Unmanage(buffer);
buffer_tracker_->RemoveBuffer(kId);
EXPECT_EQ(mapped_memory_->bytes_in_use(), static_cast<size_t>(size));
mapped_memory_->Free(mem);
EXPECT_EQ(mapped_memory_->bytes_in_use(), static_cast<size_t>(0));
}
} // namespace gles2
} // namespace gpu
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