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// Copyright 2015 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.
#ifndef MEDIA_GPU_AVDA_STATE_PROVIDER_H_
#define MEDIA_GPU_AVDA_STATE_PROVIDER_H_
#include "base/compiler_specific.h"
#include "base/threading/thread_checker.h"
#include "gpu/command_buffer/service/texture_manager.h"
#include "media/gpu/media_gpu_export.h"
#include "media/video/video_decode_accelerator.h"
namespace gl {
class SurfaceTexture;
}
namespace gpu {
namespace gles2 {
class GLES2Decoder;
}
}
namespace media {
class VideoCodecBridge;
}
namespace media {
// Helper class that provides the BackingStrategy with enough state
// to do useful work.
class AVDAStateProvider {
public:
virtual ~AVDAStateProvider() {}
// Various handy getters.
virtual const gfx::Size& GetSize() const = 0;
virtual const base::ThreadChecker& ThreadChecker() const = 0;
virtual base::WeakPtr<gpu::gles2::GLES2Decoder> GetGlDecoder() const = 0;
virtual gpu::gles2::TextureRef* GetTextureForPicture(
const media::PictureBuffer& picture_buffer) = 0;
// Helper function to report an error condition and stop decoding.
// This will post NotifyError(), and transition to the error state.
// It is meant to be called from the RETURN_ON_FAILURE macro.
virtual void PostError(const ::tracked_objects::Location& from_here,
media::VideoDecodeAccelerator::Error error) = 0;
};
} // namespace media
#endif // MEDIA_GPU_AVDA_STATE_PROVIDER_H_