virtual.h revision e831288603d44b7e6133efae7dac9d0d117fd0e3 
1/*
2* Copyright (c) 2013 The Linux Foundation. All rights reserved.
3*
4* Redistribution and use in source and binary forms, with or without
5* modification, are permitted provided that the following conditions are
6* met:
7*    * Redistributions of source code must retain the above copyright
8*      notice, this list of conditions and the following disclaimer.
9*    * Redistributions in binary form must reproduce the above
10*      copyright notice, this list of conditions and the following
11*      disclaimer in the documentation and/or other materials provided
12*      with the distribution.
13*    * Neither the name of The Linux Foundation. nor the names of its
14*      contributors may be used to endorse or promote products derived
15*      from this software without specific prior written permission.
16*
17* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
18* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
20* ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
21* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
24* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
26* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
27* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28*/
29
30
31#ifndef HWC_VIRTUAL_DISPLAY_H
32#define HWC_VIRTUAL_DISPLAY_H
33
34#include <linux/fb.h>
35
36struct hwc_context_t;
37
38namespace qhwc {
39
40class VirtualDisplay
41{
42public:
43    VirtualDisplay(hwc_context_t* ctx);
44    ~VirtualDisplay();
45    int  configure();
46    int  teardown();
47    bool isConnected() {
48        return  mHwcContext->dpyAttr[HWC_DISPLAY_VIRTUAL].connected;
49    }
50private:
51    bool openFrameBuffer();
52    bool closeFrameBuffer();
53    void setAttributes();
54
55    int mFd;
56    hwc_context_t *mHwcContext;
57    fb_var_screeninfo mVInfo;
58};
59}; //qhwc
60// ---------------------------------------------------------------------------
61#endif //HWC_VIRTUAL_DISPLAY_H
62