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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.
#ifndef GPU_COMMAND_BUFFER_CLIENT_COMMAND_BUFFER_DIRECT_LOCKED_H_
#define GPU_COMMAND_BUFFER_CLIENT_COMMAND_BUFFER_DIRECT_LOCKED_H_
#include "gpu/command_buffer/service/command_buffer_direct.h"
namespace gpu {
// A CommandBuffer that allows "locking" flushes, that is delaying progress
// until either it gets unlocked or the client waits for progress.
class CommandBufferDirectLocked : public CommandBufferDirect {
public:
CommandBufferDirectLocked() = default;
CommandBufferDirectLocked(const CommandBufferDirectLocked&) = delete;
CommandBufferDirectLocked& operator=(const CommandBufferDirectLocked&) =
delete;
~CommandBufferDirectLocked() override = default;
// Overridden from CommandBufferDirect
void Flush(int32_t put_offset) override;
CommandBuffer::State WaitForTokenInRange(int32_t start, int32_t end) override;
CommandBuffer::State WaitForGetOffsetInRange(uint32_t set_get_buffer_count,
int32_t start,
int32_t end) override;
scoped_refptr<Buffer> CreateTransferBuffer(
uint32_t size,
int32_t* id,
uint32_t alignment = 0,
TransferBufferAllocationOption option =
TransferBufferAllocationOption::kLoseContextOnOOM) override;
void LockFlush() { flush_locked_ = true; }
void UnlockFlush() { flush_locked_ = false; }
int FlushCount() { return flush_count_; }
int GetServicePutOffset() { return service_put_offset_; }
void set_fail_create_transfer_buffer(bool fail) {
fail_create_transfer_buffer_ = fail;
}
private:
void DoFlush() {
CommandBufferDirect::Flush(client_put_offset_);
service_put_offset_ = client_put_offset_;
}
bool fail_create_transfer_buffer_ = false;
bool flush_locked_ = false;
int client_put_offset_ = 0;
int service_put_offset_ = 0;
int flush_count_ = 0;
};
} // namespace gpu
#endif // GPU_COMMAND_BUFFER_CLIENT_COMMAND_BUFFER_DIRECT_LOCKED_H_
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