DisplayAnalyzer.h revision e2ad4c047651d4442f6a0e002290016d45e9201a 
1/*
2 * Copyright © 2012 Intel Corporation
3 * All rights reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
22 * IN THE SOFTWARE.
23 *
24 * Authors:
25 *    Jackie Li <yaodong.li@intel.com>
26 *
27 */
28#ifndef DISPLAY_ANALYZER_H
29#define DISPLAY_ANALYZER_H
30
31#include <utils/threads.h>
32
33
34namespace android {
35namespace intel {
36
37
38class DisplayAnalyzer {
39public:
40    DisplayAnalyzer();
41    virtual ~DisplayAnalyzer();
42
43public:
44    bool initialize();
45    void deinitialize();
46    void analyzeContents(size_t numDisplays, hwc_display_contents_1_t** displays);
47    bool checkVideoExtendedMode();
48    bool isVideoLayer(hwc_layer_1_t &layer);
49    bool blankSecondaryDevice(bool blank);
50
51private:
52    bool blankSecondaryDevice(size_t numDisplays, hwc_display_contents_1_t** displays);
53    void detectVideoExtendedMode(size_t numDisplays, hwc_display_contents_1_t** displays);
54    void detectTrickMode(hwc_display_contents_1_t *list);
55
56    bool mInitialized;
57    bool mVideoExtendedMode;
58    bool mForceCloneMode;
59
60    // for blanking the secondary display
61    bool mBlankDevice;
62    bool mBlankPending;
63    Mutex mBlankMutex;
64};
65
66} // namespace intel
67} // namespace android
68
69
70
71#endif /* DISPLAY_ANALYZER_H */
72