chromium/gpu/command_buffer/service/gpu_task_scheduler_helper.h

// Copyright 2019 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_SERVICE_GPU_TASK_SCHEDULER_HELPER_H_
#define GPU_COMMAND_BUFFER_SERVICE_GPU_TASK_SCHEDULER_HELPER_H_

#include <vector>

#include "base/functional/callback.h"
#include "base/memory/raw_ptr.h"
#include "gpu/command_buffer/common/sync_token.h"
#include "gpu/command_buffer/service/sequence_id.h"
#include "gpu/gpu_gles2_export.h"

namespace base {
class TimeTicks;
}

namespace viz {
class DisplayCompositorMemoryAndTaskController;
}

namespace gpu {
class CommandBufferTaskExecutor;
class CommandBufferHelper;
class GLInProcessContext;
class SingleTaskSequence;
class InProcessCommandBuffer;

// This class is a wrapper around a |gpu::SingleTaskSequence|. When we have
// SkiaRenderer enabled, this should behave exactly like a
// |gpu::SingleTaskSequence|. When we have GLRenderer with CommandBuffer, we
// need to initialize this class with a |CommandBufferHelper|. This is because
// when this class is used outside of actual CommandBuffer, we would need to
// make sure the order of post tasks still corresponds to the order that tasks
// are posted to the CommandBuffer.
// This class is per display compositor. When this is used with SkiaRenderer, it
// is created on SkiaOutputSurfaceImpl. Each user of this class would hold a
// reference.
class GPU_GLES2_EXPORT GpuTaskSchedulerHelper { … };

}  // namespace gpu

#endif  // GPU_COMMAND_BUFFER_SERVICE_GPU_TASK_SCHEDULER_HELPER_H_