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// Copyright 2019 The Fuchsia 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 SRC_CAMERA_LIB_FAKE_LEGACY_STREAM_FAKE_LEGACY_STREAM_H_
#define SRC_CAMERA_LIB_FAKE_LEGACY_STREAM_FAKE_LEGACY_STREAM_H_
#include <fuchsia/camera2/cpp/fidl.h>
#include <lib/fpromise/result.h>
#include <memory>
#include <string>
#include <tuple>
#include <vector>
#include "lib/async/dispatcher.h"
namespace camera {
class FakeLegacyStream {
public:
// Creates a fake stream using the given request, processing events using an optionally provided
// dispatcher. If dispatcher is omitted or null, uses the current thread's default dispatcher.
static fpromise::result<std::unique_ptr<FakeLegacyStream>, zx_status_t> Create(
fidl::InterfaceRequest<fuchsia::camera2::Stream> request,
fuchsia::sysmem::AllocatorPtr& allocator, uint32_t format_index = 0,
async_dispatcher_t* dispatcher = nullptr);
virtual ~FakeLegacyStream() = default;
// Returns OK if the client is behaving conformantly, or a descriptive error string if it is not.
virtual fpromise::result<void, std::string> StreamClientStatus() = 0;
// Sends the OnFrameAvailable event to the client. Returns ZX_ERR_BAD_STATE if it is currently
// invalid to send a frame, otherwise returns ZX_OK.
virtual zx_status_t SendFrameAvailable(fuchsia::camera2::FrameAvailableInfo info) = 0;
// Indicates the streaming state.
virtual bool IsStreaming() = 0;
// Returns true iff the given buffer ID is held by a client.
virtual bool IsOutstanding(uint32_t buffer_id) = 0;
// Returns the last region-of-interest parameters passed to the stream.
virtual std::tuple<float, float, float, float> GetRegionOfInterest() = 0;
// Returns the last image format parameter passed to the stream.
virtual uint32_t GetImageFormat() = 0;
};
} // namespace camera
#endif // SRC_CAMERA_LIB_FAKE_LEGACY_STREAM_FAKE_LEGACY_STREAM_H_