/*
 * Copyright (c) 2014 Amlogic, Inc. All rights reserved.
 *
 * This source code is subject to the terms and conditions defined in the
 * file 'LICENSE' which is part of this source code package.
 *
 * Description: header file
 */

#pragma once

#include <cstdint>
#include <memory>

// CTvWayland
// - 1 UI main surface
// - 1 main video subsurface (always created)
// - 1 PIP video subsurface (lazy-created when enabled)
// - Each video uses a dmabuf "tunnel"; tunnel id can be updated at runtime.
//   Runtime update is applied safely on the next commit when the current buffer is not busy.
class CTvWayland {
public:
    CTvWayland();
    ~CTvWayland();

    CTvWayland(const CTvWayland&) = delete;
    CTvWayland& operator=(const CTvWayland&) = delete;

    // Set tunnel id(s). Prefer calling before init().
    // If called after init(): the change is applied lazily (next commit when safe).
    void setMainTunnelId(int32_t tunnelId);
    void setPipTunnelId(int32_t tunnelId);

    // Init display + UI surface + main video plane.
    // PIP plane is NOT created until enablePip(true).
    bool init();
    void shutdown();

    // UI surface destination (viewport destination)
    void setUiDestination(int32_t w, int32_t h);

    // Main video plane
    void setMainVideoPosition(int32_t x, int32_t y);
    void setMainVideoDestination(int32_t w, int32_t h);
    bool ensureMainReady();
    bool startMainVideo();
    void stopMainVideo();
    // PIP video plane (lazy)
    bool startPipVideo();
    void stopPipVideo();

    void setPipPosition(int32_t x, int32_t y);
    void setPipDestination(int32_t w, int32_t h);
    void setPipRect(int32_t x, int32_t y, int32_t w, int32_t h);
    void setPipAboveMain(bool above);

    // Commit UI + planes that are visible/ready
    bool commitAll();

    int32_t outputWidth() const;
    int32_t outputHeight() const;

private:
    struct Impl;
    std::unique_ptr<Impl> mImpl;
};