liboverlay/overlayCursor.h

/*
* Copyright (c) 2015, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*     * Redistributions of source code must retain the above copyright
*       notice, this list of conditions and the following disclaimer.
*     * Redistributions in binary form must reproduce the above
*       copyright notice, this list of conditions and the following
*       disclaimer in the documentation and/or other materials provided
*       with the distribution.
*     * Neither the name of The Linux Foundation nor the names of its
*       contributors may be used to endorse or promote products derived
*       from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef OVERLAY_CURSOR_H
#define OVERLAY_CURSOR_H

#include "overlay.h"
#include "overlayUtils.h"

namespace overlay {

using namespace overlay;
using namespace overlay::utils;

// HW Cursor Helper
class HWCursor {
public:
    static HWCursor* getInstance();
    bool config(const int fd, void* base, PipeArgs& pargs, Dim& crop,
            Dim& dest);
    bool setPositionAsync(const int fd, int x, int y);
    bool free(const int fd);
    bool isCursorSet() { return mfbCursor.enable; }
    void getDump(char* buf, size_t len);
private:
    HWCursor() { memset(&mfbCursor, 0, sizeof(mfbCursor)); }
    bool setCursor(const int fd);
    fb_cursor mfbCursor;

    static HWCursor* sHwCursor;
};
}

#endif // OVERLAY_CURSOR_H